US1385061A - A cobjpobation of wis - Google Patents

Description

B. S. MKMAN.

PUMP AND PUMPING SYSTEM.

APPLICATION FILED JULY 21, 19W.

Patented July 19, 1921.

3 SHEETSSHEET 1.

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B. S. AIKMAN.

PUMP AND PUMPING SYSTEM.

APPLICATION mu) JULY 21. 1917. 1,385,061, Patented July 19,1921.

3 Sfiiilsigflfifl 2- lnuarflnr Bunion S. flikrnan B. S. AIKMAN.

PUMP AND PUMPING SYSTEM.

APPLICATION mzn JULY 21. 1911.

Patented July 19, 1921.

3 SHEETSSHEET 3.

n an III UNITED STATES PATENT OFFICE.

BURTON 8. mm, OF MILWAUKEE, WISCONSIN, ASSIGNOR TO NATIONAL BRAKE &

ELECT-BIO COMPANY, OF MILWAUKEE, WISCONSIN, A OOBBORATION 01' W18- OONBIN.

PUMP AND PUMPING SYSTEM.

Toallwhomitmay concern:

Be it known that I, BURTON S. AIKMAN, a citizen of the United States, residing at Milwaukee, in the county of Milwaukee and State of Wisconsin, have invented a certain new and useful Improvement in Pumps and Pumping Systems, of which the following is a. full, clear, concise, and exact description, reference being had to the accompanying drawings, forming a part of this specification.

My invention relates to umps and pumping systems particularly oi that class known as faucet controlled systems.

This invention provides a umping system em loying a single cylin er pump operated m a source'of compressed air or other motive fluid to raise water or other liquid from a well to a consumption system as, for instance, to the water pipes and faucets of a residence without the interposition of a storage tank. In this type of system the well itself is the only storage tank and the water is pumped therefrom in accordance with the demand, as indicated by opening the faucets or other outlets of the system.

In accordance with my invention I provide an auxiliary pumping means in connection with the single pump cylinder which auxilia pumping means is located at the top of t e well and which serves to equalize the pressure and consequently the flow.

Heretofore it has been customary to provide the ump cylinder with valves in the head of t e cylinder and to lower the cylinder with valves and all down into the well. According to my present invention the valves which control theadmission and exhaust of the motive fluid to the pump are located at the head of'the well and are preferably connected with the auxiliary pumping means. Consequently better attention can be given to the working parts of the pump and the valves and in the case of repairs required by the valves much less work and difficulty is involved.

In accordance with my invention the valve located at the head of the well and operated in connection with the auxiliary pumping means, may directly control the admission and exhaust of motive fluid to the pump or may control the same through a relay Specification of Letters Patent.

- the Patented Jul) 19, 1921.

Application filed July 27, 1917. Serial No. 188,094.

or intermediate operating means. Thus the valve may be relatively small and may be the same for all capacities of pumps, the dimensions of the pump and operating means belng varied to secure greater capacity.

It will be apparent from the detailed descriptlon and the appended claims that there are many aspects of my invention which are novel in themselves, and that my invention provides certain fundamental combinations of parts which are novel in this art and whlch may appear in embodiments superficiall quite different from the particular embo iment which I have herein described and. illustrated.

In order to apprise those skilled in the art how to practlse my invention. I shall describe in detail a. specific embodiment of the same in connection with the accompanying drawings which form a part of the present specification.

Figure 1 is a diagrammatic view of a system embodying my invention in which the valve at the head of the well controls directly the admission and exhaust of motive fluid to and from the workingcylinder of Fig. 2 1s a fragmentary dlagrammatic view indicating the modified structure employed where the valve at the head of the well is a master valve which works through a relay for controllin the admission and exhaust of motive fluid to and from the working cylinder;

Fig. 3 is a diagrammatic illustration of a modification in which the valve at the head of the cylinder also serves as a master valve and operates through a body of liquid instead of a solid stem to work a valve which controls the admission and exhaust of motive fluid to and from the pump cylinder;

Fig. 4:. is a sectional view, with parts broken away, showing the details of the system indicated in the diagram of Fig. 2;

Fig. 5 is a section of the master valve, taken on the line 5, 5, of Fig. 4;

Fig. 6 is a cross-sectional view of the pump 0 linder showing the connections and valves or the same, showin also the control valve which is operated t rough the medium of a body of liquid; and

Fig. 7 shows a rear elevation of said valve and Fig. 8 shows a section of the valve taken on the line 8, 8, of Fig. 6.

The cylinder 1 is lowered into the water of the well, this cylinder being sufliclently submerged so that when the exhaust valve is opened the water will flow into and fill the cylinder speedily.

Air is supplied from any suitable source, such, for instance, as the compressed air tank 2, for raising the water from the pumpcylinder 1. The tank 2 maybe automatiauxiliary pumping means 3' is connected by means of a discharge pipe 5 to the consump tion system, such as the water pipes and faucets of a residence or the like.

A master valve 6 is also located at the head of the well and this valve is operated in connection with the auxiliary pumping means 3 to control the admission and exhaust of motive fluid to and from thepum cylinder-1. For this purpose an air ipe leads from the valve 6. This pipe may be directly connected to. the pipe 8 which supplies air to the pump cylinder 1, or it may be connected as by means of the pipe 9, in Fig. 2, to an operating or motor. element 10 which in" turn controls a valve 11 that governs the admission of motive fluid to the pump and its exhaust therefrom.

The auxiliary pumping means 3 is of a;

capacity suitable to receive about half the discharge of the pump 1, the rest of the discharge going directly through the pipe 5 to I the consumption system. As the auxiliary pumping means 3 operates against a less head than does the pump 1, air is supplied. at a reduced pressure by means of the reducing valve 11, auxiliary tank'12 and'pipe 13 "to the auxiliary pumping means for the purpose of maintaining the. flow in the discharge pipe 5 during the time that the pump 1 is filling. The auxiliary pumping means 3 and the tank 12 in reality constitute an air spring of large capacity which is adapted to operate the master'valve 6.

The construction of the valve 6 is show in Figs. 4 and 5.

The diaphragm chamber 3 comprises two hollow cylinders 14 and 15 clamped together at their peripheries with a. flexible diaphragm '16 gripped between them. This flexible diaphragm is provided at its center with a metallic piston consisting of two similar parts 17 and 18 clamped together at their'edges. The part 17 is provided with a valve seat 19 which is adapted to engage the valve opening 20 in case of derangement of the system. The piston member 18 is provided with a projecting stem 21 which is adapted to engage an operating rod 22, shown in dotted lines in Figs. 4 and 5. This rod 22 is provided with a groove engaged by the arm 23 of the operating lever which operates the movable valve body 24. A suitable casting 25 is formed integral with the cylinder member 15 and provides the nec'es-- sary connections and support for the structureof the valve 6.

The arm 23 is attached to a rock shaft 26 which has the valve operating arm 27 'connected thereto. The valve operating arm 27 is forked at its end to embrace the reduced portion 28 of the valve rod 29. The reduced portion 28 lies between'tw- o collars 30 and 31 which permit of considerable play before the valve stem 29 and the valve body 24 arev actually moved.

The shaft 26 is provided with another arm 32 to which is connected one end of the spring 33'. The other end of the spring 33 is secured to the stationary pin 34. This spring is of suflicient strength to givefthe valve a positive .sna action. It is to be noted that the operating rod 22 which is en-. gagcd by the boss 21 is not connected thereto.

The valve casing 36 is provided with an exhaust opening 37 and admission opening-38' communicating with the pipe 39, which leads r to the main reservoir 2 and an opening 40 which is connected to the pipe 7 This pipe 7 leads either directly to the pump cylinder 1 where the valve acts directly to control the admission and exhaust of motive fluid to the pump or leads to the controllingelement 10 and this in turn operates a valve which controls the admission and the exhaust of the pump cylinder 1. The admission opening 38 is provided with a port 42 which is adapted to be closed by the yielding seat 43 on'the valve body 24. The exhaust opening 37 communicates with the body of the valve through a port 44 which is. adapted tobe closed by the yielding face 45 on the valve body 24. It can thus be seen-that when the valve body 24 is moved downward it closes off the port 44 and opens the port 42. This permits air from the reservoir to enter through the pipe 39 and pass through the port 42 to the pipe, 7 and from there either to the pump cylinder 1 or to the operating element 10, as will be explained later. When the valve is moved in the opposite direction the port 44 is opened and thepipe 7 thus communicates with the atmosphere.

The pump 1 comprises a barrel member 47 which is formed of a piece of-tubing of the proper diameter. A head member 48 is attached to the upper end of the barrel 47 and a foot member 49 isattached to the lower cage 51 which is connected to the foot b means of the central bolt 52. The hea member 48 has a passage 53 communicating with the water discharge ipe 4 which leads tothe top of the well an communicates at itsother end with the pipe 50. The pipe 50 in turn communicates with the interior of the valve cage 51. The valve cage 51 incloses the check valve 54 which communiw cates with the lower part of the pump cylinder 47 by way of the passages 55.

The foot member 49 is provided with 1nlet ports 56 which coiiperate with the foot valve 57. A conical screen 58 covers the. bottom of the foot member 49 and prevents entry of foreign matter to the pump cyl- 1n or.

The cylinder head 48 is provided with anopening or assageway 59 which communicates with e interior of the barrel 47 and with an air suppiy pipe, namely the air supply pipe 8 of ig. 1, or the air supply pipe 60 of Figs. 2 and 4, or the an supply pipe 61 of Figs. 3 and 6.

n the di m of Fig. 1 the valve 6 admits air to e cylinder 1 and permits ex haust from the cylinder 1. This arrangement is entirely satisfactory when the ca pacity of the pipes 7 and 8 is relatively small. If, however, the well from whic the water is pumped is relatively deep so that the cubical contents of the pipe 8 is considerable, it would be quite inefiicient to exhaust this amount of air for each stroke. In order to avoid this loss of air I provide a valve near the head of the pump and operate it by means of a cylinder and pistonor some other operating element located at the head of the well or at any other suitable position. The valve 6 then operates purely as a master valve and the control is relayed through the operating elements to the control valve.

Figs. 2 and 4 illustrate such a system where the master valve 6 operates through the operating element 10 to work the controlling valve 11. In this case the controlling element 10 consists of a small cylinder 63 communicating by way of the pipe '64 with the pipe 7. The cylinder 63 is provided with a lining 65 that has a valve seat 66 at the upper end as will be explained later. A movable piston member 67 is adapted to slide, in the cylinder 63. A rod 68 is connected by means of the spring connection 69 with the piston 67 and extends down through the pipe 70 to the controlling valve body 71 which preferably is located adjacent the head of the pump 1.

The pipe 70 communicates by means of a T connection 72 with the pipe 73 which is connected in turn either directly to the tank 2 or to one of the pipes such as 74 communicating with the compressed air tank 2. It can thus be seen that the piston 67 is s 7 a d past the piston 67 when the piston is moved to its uppermost position.

It will be noted that when the piston 67 seats against the valve seat 66 the veffective area of the piston on its upper surface is reduced so that when live air is admitted on the upper side of the same the piston will first be broken away from the seat and then moved down with a snap action. The spring 69 performs a dual function. It permits the admission valve 85 to be closed before the piston strikes the ,seat 66 so that the admission valve is moved to its seat by the full pressure of the fluid pressure on the lower side of the piston and then the piston is held in its upper position against the seat 66 with the spring 69 under tension. Hence, as soon as the piston moves away from its seat 66, the spring pulls it away quickly letting the air equalize suddenly so that the weight of the parts and the .pressure of the air on the admission valve 85 moves the valve structure 84 down with a snap to close the exhaust valve 89. The spring also aids on the upward motion of the iston 67 to throw the exhaust valve clear 0? its seat after it is once pulled away from its seat against the force of the compressed air which holds it on seat while pressure is on the pump chamber. The upward throw of the spring also snaps the ad mission valve 85 shut by the same action.

The controlling valve body 71 comprises a substantially cylindrical body provided with a transverse exhaust passage 76 and an axial Passage 77 which communicates by way 0 the reduced portion 78 with the pipe 60 leading to the cylinder head 48 and the interior of the pump 1. The portion 78 of the valve body 71 and the pipe 60 are joined together by a union which has a flared funnel shaped member 80 at its upper edge for directing the reduced part 78 of the valve body 71 to the threaded part of the union, thus if any derangement of the valve within the valve body 71 should occur the same may be unthreaded at the union 79 and raised to the surface. Thereafter the reduced portion 78 may be threaded into the union because of the funnel shaped guiding member 80 which directs it to the threaded portion. The funnel shaped member 80 is of substantially the diameter of the pump 1 and embraces the water pipe 4, hence it is easy to cause engagement of the screw threads.

The valve body 71 has a head member 81 provided with a valve port 82. A valve guiding member 83 passes through the port ously explained, is connected to the piston 67.

The valve member 84 comprises an'outer.

shell having a yielding seat 85 at its upper surface. A screw plug 86 enters the bottom of the shell of the valve member 84 and embraces the cylindrical part 87 which has an annular shoulder 88 at its upper end. The cylindrical part 87 slides inthe ring 86. A

yielding valve face 89 cooperates with the exhaust port 90. This valve face is secured to the cylindrical member 87. It can be seen that the cylindrical member 87 with its shoulder 88 forms 'a lost motion connection with the rod 68 through the various parts previously described.

' The operation of the system shown in Fig. 4 is as follows: 7 I

Air is supplied under suitable pressure by 9 way of the inlet pipe 39 tothe master valve 6. Air at reduced pressure is admitted by way of the reducing valve 11 to the tank 12 which communicates by way of the pipe 13 With the auxiliary pumplng device 3. Assumingthat the consumption system is open to permit water to escape from the pipe 5 the first movement will be that of the diaphragm 16 under the pressure of the air in the tank 12 driving the water out of the cylinder 14. When the piston member 18, 19,

has moved sufiiciently far to the left, as seen in Fig. 4, the valve member 24 will be oper ated to open the admission ports to permit compressed 'air to enter the pipe 7 and pass through the operating cylinder 10 driving the piston 67 and rod 68 downward, thereby opening the valve 82, 85 and closing the valve 89, 90. Closing the valve 89, 90, shuts off the exhaust passage 76 and opens the compressed air port 82, permitting air from the pipe 7 3 to pass-down by way of'the pipe 60, to the'pump 1 to drive the water out of the pump through the pipe 4. Part of the discharge of the pump flows out of the pipe 5 by way of the consumption systemand a part of the water is accumulatedin the auxiliary pumping device 3. This accumulation of water in the cylinder 14 moves the piston member 18, 19 to the right, as shown in Fig. 4, causing the valve to be snapped into the opposite position, closing the inlet port andthen opening the exhaust port 44.

thereby permitting the air in the pipes 7, 64, to exhaust. ,The pressure in thepipe is substantially full tank pressure and this operates with greater effective area upon the bottom of the piston 67 than upon the valve member 84Aat the lower end. Consequently the-piston 67 and rod 68 begin to move upward carrying with themthe guide 83 and the valve seat 85 but due to the lost motion connection moving at first independently of' the exhaust valve 89. 'However, just before prises a cylinder 94 closed off by the admission port-82 is closed by the valve 85, the exhaust valve 89 is jerked oflf of its seat and the exhaust port 90 is opened. 'This action is aided by the spring69 which permits the piston "67 to move ahead of the rod 68 so that the last part of the'moveme'nt of the valve 85 toclosed position and the valve 89 to open position is'attributed to the actlon of the spring 69 independently of the movement of the piston 67 at thattime; The difference in area between the bottomof the piston 67 and the area of the valve 85'is such that the valve readily remains in closed position.

It is further to be noted that the guide s3v comprises a round rod which substantially 1 closes off the valve port 82 just before the valve 85 engagesthe port 82, thus preventing any appreciable leakage of air even if the movementof the exhaust'valve89 should be slow, delaying the closing of the valve 85. I During the time that the exhaust port 90 is'open'the air escapes from the pump 1 and the space in the pump is filledby incoming water. During the/filling period, which is relativelybrief, the auxiliary pumping detor, forces the water, contained between the cylinder 3 and the piston 19 with its diaphragm 16, out by way of the pipe 5 to the consumption system. Thus a steady flow of water is maintained at the faucets or other points of consumption.

The system indicated diagrammatically in Fig. 3 is substantially the same as that indicated in Fig. 2. 'In'th-is system instead of vice 3, which might be termed an accumulaemploying a pump rod, such as the one shown at 68 in Fig. 4, to work betweenthe head and the bottom of the well, I employ a pipe 91'filled witha body of liquid92 which transmits the pressure of the air from the pipe 7 to a combined operating unit and valve 90 at the bottom of the well. Acompressed air pipe 93 which like the pipe 73 is adapted to be connected to the tank" 2 phragm 95 and'piston 96; The liquid 92 V which is incompressible serves merely as'a motion transmitting means between the air in the pipe 91 and the diaphragm or piston 96. The body of the device is provided with an air inlet 97 to which compressedv air is admitted, a cylinder connection 98 leading to the pump cylinder by way of the pipe 61 and outlet 99 fortheexhaust. The 'cylin der connection 98 communicates with the central portion 100 ofthe valvebody 101.

The air inlet 97 communicates at one .end. b

way of the inlet port 102 with'the central .part 100. This port 102 is adapted to be controlled by the valve member 103 which valve member seats with the pressure of the live air so that during period of idleness the admission valve, whlch is in the form of a puppet valve, is held tight against its seat b the pressure of the live air. Consequent y there is a minimum tendency for air to escape over night or at other periods when the pump is idle. The exhaust port 104 is controlled by the valve 105 WlllCll is connected directly to the operating piston 96 and the diaphragm 95. The valves 105 and 103 are connected together by means of the stem 106 and are properly guided by means of the guide 107.

A spring 108 bears against the rear of the diaphragm 95 in order to balance the weight of the body of liquid 92 which bears upon the other side of the diaphragm.

The operation of this form is readily apparent. When the master valve 6 is operated to admit air to the pipe 91 at the top of the liquid 92, as by way of the pipe 7, the exhaust valve 105 is closed and the admission valve 103 is opened against the ressure of the live air which operates to hol it against its seat when it is closed. This permits air to pass down the pipe 93 through the port 102, through the pipe 61 to the pump 1, driving the water out of the cylinder of the pump by way of the pipe 4. As previously explalned part of the water goes to the consumption system and part is accumulated in the auxiliary pumping device 3. When the auxiliary pumping deviceis substantially filled wit water the position of the master valve 6 is shifted to exhaust the pressure on top of the body of liquid 92 and this release of pressure permits the spring 108 to close the admission valve 103 and to open the exhaust valve 105 permitting the compressed air in the pump to exhaust and the pump to fill with water from the well. At the same time the auxiliary pumping device 3 serves to supply the consumption system until the pump is ready for the next stroke.

It is to be noted that in the event of a greater demand for water than the pump is able to supply or in any case where a blow-over mi ht occur, the diaphragm 16 will be forced to the extreme left causing the yieldin valve member 19 to engage the seat 20 an to shut off any discharge from the pipe 4.

The capacity of the pump is so proportioned to the consumption system and to the auxiliary pumping device that even if the consumption system is opened to the maximum normal extent suflicient water from each stroke will flow into chamber 14 to operate the valve 6. I have therefore shown the pipe '5 of smaller capacity than the The auxiliary pumping device performs a double function. It constitutes primarily an air spring for equalizing the flow of water in the consumption system, particularly at the outlets. It constitutes also a stroke responsive device for operating the valves of the pump cylinder. The column of water between the device 3 and the pump c linder 1 is a direct inelastic connection.

he quantity of water forced into the chamber 14 overns the operation of the valve 6.

The device 3 is subject to a further efi'ect, namely the opening and closing of the faucets of the consumption system. Opening of a faucet reduces the quantity of water in the chamber 14. As explained when the water has been reduced to a predetermined minimum in the chamber such withdrawal causes operation of the valve 6. Similarly closin the faucets causes more water to be forced into the chamber 14 and the master valve 6 is accordingly operated. The broad aspect of my invention is not necessarily limited to a submerged pump cylinder. It will be noticed that when the faucets are all closed the pump chamber 1 is open to exhaust and is not under pressure. The auxiliary pumping chamber is always under pressure. If a stroke of the main chamber is initiated and the full discharge of the same is not required the liquid 1s all discharged into the auxiliary chamber, filling the same to the predetermined maximum condition and then the main chamber is connected to exhaust. Thus the pump may make short or long strokes in accordance with the demand for water. I consider that I am the first to employ a chamber of variable capacit having a valve controlling the strokes o the pump according to the quantity of fluid contained in the chamber.

I claim:

1. In a system of the class described, a pump comprising a single cylinder having iquid inlet and outlet check valves, a discharge pipe and an air pipe, a source of compressed air communicating with the air pipe, a master valve means above the level of the liquid controlled by the discharge of liquid from the cylinder, and a relay in the well adjacent to the pump cylinder controlling the inlet of air from said source through the pipe to the pump cylinder, and means governed by the master valve for operating the relay valve.

2. In combination, a single pump cylinder having inlet and outlet check valves for liquid, a closed distributing system having delivery outlets, a source of motive fluid for the cylinder, a steady flow chamber communicating with the distributing system, said steady flow chamber being of sufiicient capacity to provide the full discharge from the system between strokes of the pum a motor operated by the liquid flowing mto and out of said steady flow chamber, and a valve operated by the motor controlling the admission and exhaust of the fluid to and from the cylinder. I

3. I In combination, a single pump cylinder adapted to be submerged in the liquid, said pump cylinder having liquid inlet and discharge check valves, a discharge passage, a closed distributing system having delivery outlets connected to said discharge passage, a motive fluid pipe for admitting and exhausting fluid to and from the pump cylinder, a steady flow chamber at the head of the well communicating withsaid discharge passage, said steady flow chamber being of sufficient capacity to provide the full discharge from the system between strokes of the pump and valve means controlled from said chamber for controlling the admission of motive fluid to the pump cylinder for each stroke of the pump. a

4:.v In combination, a pump cylinder having liquid inlet and discharge check valves, a liquid discharge pipe, an air pipe for admitting and exhausting motive fluid, a source of compressed air, a diaphragm chamher having a diaphragm, said diaphragm chamber comprising a liquid cylinder on one.

side and an air cylinder on the other side of the diaphragm, a valve for controlling the air pipe of the cylinder and a connection between the diaphragm and the Valve.

5. In combination, a pump cylinder having liquid inlet and outlet check valves, a discharge pipe, an air pipe, a valve controlling said air pipe, a source of compressed air for said air'pipe, a closed system comprising a distribution pipe having manually controlled delivery outlets, a liquid accumulating cylinder having unrestricted communication with the distributing pipe and the discharge pipe, a piston for said cylinder, means for opposing the movement of said piston and means operated by movement of said piston for controlling said air valve.

6. In combination, a single cylinder pump having a foot valve, an outlet check valve, a liquid discharge pipe, a closed distributing system having manually operable delivery outlets controlling the operation of the pump, an air pipe communicating with the interior of the cylinder, a valve at the head of the well controlling the admission of air to the pump through said pipe, and means operated by the flow of liquid out of said liquid discharge pipe for operating said valve for each stroke of the pump, said means being adapted to provide a discharge for the closed distributing system between.

strokes of the pump.

7. In combination, a single cylinder pump ductin cylinder for admitting compressed air, a control valve in the well adjacent said pump for controlling said pipe, a master valve at the head of the, well, said master valve being controlled by the flow of liquid in said discharge pipe, and operating means for the control valve governed by the master valve.

8. In combination, a single pump cylinder adapted to be submerged in the liquid of a well, said pump cylinder having inlet and outlet valves, a discharge pipe, a valve in the well adjacent said pump cylinder, a valve at the head of the well, said last named Valve being controlled by the flow of liquid in said discharge pipe, and an operating element at the head of the well, said operating element having a movable element connected by a rigid connection to the valve at the bottom of the well for operating the same.

9. In combination, a single pump cylinder adapted to be submerged in the liquid of a well, said cylinder having a discharge pipe, an air pipe for admitting and exhausting air from the cylinder, a valve at the foot of the well adjacent said pump cylinder for controlling said air pipe, means for conducting compressed air to said controlling valve, a master valve at the head of the pump, a steady flow chamber having pressure controlled means for operating said controlling valve, said means comprising a non-expansible connection between the head and the foot of the well.

10. In combination, a pump cylinder submerged in the liquid at the bottom of the well, a discharge pipe from the cylinder, an auxiliary pumping device comprising a movable diaphragm at the head of the well, said diaphragm being affected by the discharge of liquid from the pump cylinder, a master valve operated by. said diaphragm, an air pipe for the pump cylinder, means for concompressed air downward to the foot 0 the well, a control valve at the foot of the well, an operating element controlled by the master valve for operating said control valve, said operating element having a non-compressible member running from the head of the well to the foot of the well.

11..In combination, a pump cylinder adapted to be submerged in the liquid at the foot of the well, a diaphragm chamber at the head of the well, an air spring for the diaphragm, a master valve controlled by the 120 diaphragm, an operating cylinder and piston at the head of the well, a controlling valve at the foot of the well, a pipe for conducting compressed air to said controlling valve and a rod connecting said operating 125 piston with the valve at the foot of the well.

12. In a device of the class described, a pump cylinder adapted to be submerged in the liquid at the bottom of the well, a discharge pipe leading up from said cylinder, 130

an air pi 0 leading from said cylinder, a union at t e top of said air pipe, said union comprising a threaded portion surrounded by a funnel shaped portion, a pipe having a valve member, said valve member having a portion adapted to engage said threads and to be 'ded to said threads by said funnel shapef ii iember.

13. In combination, a pump cylinder, an air pipe for said pump cylinder, said pump cylinder being adapted to be submerged in t e liquid in the bottom of the well, a controlling valve at the foot of the well adjacent said pump cylinder, said controlling valve comprising a compressed air inlet port and an exhaust ort and movable valve members for opening and closing said ports, said valve members having a lost motion connection between them, a rod connected to said valve members and running to the head of the well, an operating piston at the head of the well, a pipe surroundin said operating piston, an operating cylinder supported on said pipe and means for admitting compressed air to each side of the operating piston.

14. In a pump, a cylinder ada ted to be siibmer d in the liquid at the ttom of the we a discharge pipe and an air pipe, a controllin valve at the foot of the well adjacent sai pump cylinder, an operating element at the head of the well, said operating element comprising a cylinder and a piston, a pipe running between the operating cylinder and the controlling valve, means for supplying compressed air to said pipe, a rod running between said piston and the controlling valve, and a spring connection between the piston and the rod.

15. In combination, a pump cylinder adapted to be submerged in the liquid at the bottom of the well, a discharge pipe, an air pipe, a controlling valve at the foot of the well governing said air pipe comprising axially arranged admission and exhaust valves, a lost motion connection between said valves, means for supplying air under pressure to said valve, and an operating piston at the head of the well for controlling said control valve.

16. In combination, a pum cylinder adapted to be submerged in the liquid at the bottom of the well, a discharge pipe for the pump cylinder, an air pipe for the pump cylinder, a controlling valve at the foot of the well adjacent the pump cylinder, said controlling valve having an inlet port and an outlet port axially in line with each other, an inlet valve member and an outlet valve member, said members being connected together by a lost motion connection, an operating cylinder having a piston at the head of the well, a rod connected to the controlling valve at the foot of the well and a spring connection joining the rod and the piston at the head of the well.

17. In combination, a pump cylinder adapted to be submerged in the liquid at the bottom of the well, a liquid discharge pipe from said pump cylinder, an air pipe for the pump cylinder, an auxiliary pumping device connected to the dischar e pipe at the head of the well, a valve at t e foot of the well adjacent the pump cylinder for admitting compressed air to and exhausting the same from the pump cylinder b way of the air pipe and means controlled y the auxiliary pumping device for operating said valve.

18. In combination a pump cylinder having liquid inlet and discharge valves, a liquid discharge pipe leading to the head of the well, a control valve for controlling the admission and exhaust of compressed air to the pump cylinder, said valve being located exteriorly of the pump cylinder but adjacent thereto, an auxiliary pumping device comprising a cylinder and a piston connected to said liquid discharge pipe, means for yielding opposing movement of said piston and means controlled by movement of said piston for operating the control valve for the pump.

19. In a device of the class described, a liquid cylinder, an air cylinder, a diaphragm dividing said cylinders, means for discharging water in the liquid cylinder, means for maintaining a fluid under pressure in said air cylinder, a valve port governing the admission of li uid to the water cylinder and a valve mem r secured to the diaphragm for closing off said port in the event of the failure of liquid pressure in the liquid cylinder.

20. In combination, a li uid cylinder, an air cylinder, a piston mem r between said cylinders, a pump for discharging liquid into said water cylinder, a valve controlled by said piston governing the operation of said pump, and means for maintaining a body of air under pressure in said air cylinder.

21. In combination, a liquid cylinder, an air cylinder, a diaphragm and iston subject to the pressure of fluids in sai cylinders, a valve casing mounted on one of said cylinders, a rod connected to said piston and projecting through the valve casing, a movable valve member and a loose connection between said valve member and said rod.

22. In combination, a liquid cylinder, an air cylinder, a iston responsive to pressure of fluids in said cylinder, a valve casing mounted on one of said cylinders, a rod projecting axially from said piston into the valve casing, a movable valve member, a snap action operating lever connecting said rod with said valve member and means controlled by said valve member for dischargquantity of fluid in the chamber governing the individual strokes of the pump.

24. In combination, a chamber having a yielding wall, means for forcing the wall inward, a pump discharging into the chamber and moving the wall outward for. each stroke, and a valve operated by movement of the wall for governing the operation of the pump.

25. In combination, a chamber having a yielding wall, means for forcing the wall inward, a pump discharging into the chamber and moving the wall at each stroke, valve means governing the pump, said valve means being controlled by the wall to cause the pump to discharge into the chamber when the wall is moved inwardly, and a discharge pipe of less capacity than the pump communicating with the chamber.

26. In combination, a source of motive fluid, a single cylinder pump in the well, a master valve at the head of the well for governing admission and'exhaust of motive fluid to and from the pump for each stroke of the pump, a relay valve at the foot of the well governed by said master valve, said relay valve controlling communication of the pump alternately with the source of motive fluid and with exhaust.

27. In combination, a single cylinder pump adapted to be placed in the water in the well, a source of motive fluid, admission and exhaust valve mechanism at the foot of the well, a pipe leading to the valve mechanism from the source of motive fluid, means at the head of the well actuated by discharge of liquid from the pump governing said valve mechanism at the foot of the well.

28. In combination, a single cylinder pump adapted to be placed in the water in the well, a source of motive fluid, admission and exhaust valve mechanism at the foot of the well, a pipe leading to the valve mechanism from the source of motive fluid, pressure operated means for operating said valve mechanism, and valve means at the head of the well actuated by discharge of liquid from the pump governing said pressure operated means.

29. In combination, a pump barrel having inlet and discharge valves, a discharge pipe from the pump, a piston chamber at the head of the well communicating with said discharge pipe, a closed distributing system having manually controlled delivery faucets communicating with the piston chamber, said piston'chamber having a piston movable by the pressure of the discharged liquid and means governed by motion of said piston governing admission to and exhaust from the pump of motive fluid.

30. In combination, a pump barrel, an inlet check valve for permitting the entry of liquid, a discharge check valve for liquid, a discharge pipe communicating with said discharge check valve, a chamber of variable capacity, communicating with the discharge pipe, resilient means for forcing liquid out of the chamber, a closed distributing system having manually operable delivery faucets communicating with said chamber and valve means governed by the quantity of liquid in the chamber for controlling admission and exhaust of motive fluid to and from the pump barrel.

31. In combination, an air displacement pump comprising a pump barrel, an inlet check valve for liquid, a discharge check valve for liquid, a dischargepipe communicating with the discharge check valve, a chamber of variable capacity communicating with the discharge pipe and adapted to store and hold a quantity of liquid under pressure when the delivery faucets are closed, a closed distributing system having manually operable delivery faucets communicating with said chamber, resilient means for causing a discharge of liquid from, the chamber through the distributing system when the delivery faucets are opened and valve means governed by discharge of liquid. from the chamber for admitting motive fluid to the pump barrel.

82. In a pump, a casing having a chamber communicating with the source of fluidsupply, means for admitting motive fluid to said chamber, a discharge pipe through which liquid is forced by said motive fluid, a casing having a chamber into which the liquid is forced, a distributing system having normally closed manually operable delivery faucets communicating with said chamber and a device within said casing adapted to be moved outwardly and inwardly as the liquid enters the same and escapes therefrom and means connecting said admitting means to cut off the supply of motive fluid when said device is in its outer position. I

33. In combination, an air displacement pump comprising, a pump barrel having an inlet check valve for liquid, a discharge pipe for liquid, a discharge check valve in said discharge pipe, a chamber of variable ca pacity communicating with the discharge pipe and adapted to store and hold under pressure a quantity'of liquid at each stroke, a closed distrlbuting system having manually operable delivery outlets communicating with said chamber and valve means gov-- erned by the storage of liquid in said chamber for shutting off the supply of motive fluid to the pump barrel.

34. In combination, a pump barrel having liquid inlet and discharge valves, a discharge pipe, a chamber of variable capacity communicating with the discharge pipe, means for resisting enlargement of said chamber, valve means operated by enlargement and contraction of said chamber for exhausting and admitting motive fluid from and to the pump barrel, and a normally closed distributing system having manually operable delivery outlets, governing the storage of liquid in said chamber.

35. In a pump, a ump barrel, inlet and discharge valves for iquid, a delivery pipe, a pressure motor, a normally closed delivery system communicating with the pressure motor, said system having manually operable delivery outlets, valve means for admitting and exhausting motive fluid to and from the pump controlled by said motor, said motor being operated on one stroke by the accumulation of back ressure governed by said manually controlla 1e delivery openings, said motor serving to trap under pressure, a quantit of liquid for immediate delivery to the distributing system when the manually operable delivery openings are opened.

36. In combination, a pump barrel having liquid inlet and discharge check valves, a delivery pipe for liquid, :1 pressure operated motor at the head of the well, communicating with said delivery pipe, a normally closed distributing system communicating with said motor, manually o erable delivery outlets for said system, sai motor having means for storin a quantity of liquid under pressure when the outlets are closed, valve means governing the admission and exhaust of motive fluid to and from the pump barrel, said motor and valve means being organized to shut off admission and open exhaust of the pum barrel when the delivery outlets are closed.

37. In combination, a pump cylinder, inlet and discharge valves for liquid, admission and exhaust valve mechanism for motive fluid, a normally closed delivery system having manually operable outlets, means for receiving and storing a quantity of liquid under pressure when the outlets are closed, said last means being adapted to operate the said valve mechanism to shut off admission and open the exhaust of the pump cylinder when the outlets are closed.

In combination, a ump, a pressure delivery system, a steady ow chamber having a piston, resilient means pressing the piston inwardly, said pump, delivery system and chamber being connected together without restriction, and valve means controlled by outward movement of the piston for connecting the pump to exhaust, said piston being held outwardly between strokes of the pump and until a definite quantity of liquid is discharged from the system.

39. In combination, a pump, a pressure delivery system, a stead flow chamber for storing a definite quantity of liquid under pressure for furnishing the discharge between strokes of the pump, means operable only when said definite quantity has been discharged for admitting motive fluid to the pump for the next discharge stroke, said means controlling the individual strokes of the pump.

40. In combination, a single cylinder pump barrel in the well having a li uid inlet and a liquid discharge check va ve and an air ort, a motor element at the head of the well controlled by the individual strokes of the ump, a master valve at the head of the well operated by said motor element, and a relay valve controlled by the master valve, said relay valve governin the admission and exhaust of motive uid to and from the pump barrel.

41. In combination, a pump having inlet and discharge check valves, a faucet controlled delivery system for the pump, an auxiliary pumping chamber, said chamber fur nishing the discharge for the delivery system between strokes of the pump, and a valve governed by the quantity of liquid in the auxiliary chamber governing admission and exhaust strokes of the pump.

42. In combination, a single cylinder pump, a closed delivery system for the pump, a steady flow chamber for the pump for maintaining a constant pressure on the delivery system, said chamber comprising a movable piston communicating on one side only with the delivery system and a valve governed by said piston for governing admission and exhaust of motive fluid to and from the pump, said steady flow chamber being of suflicient capacity to supply the discharge from the delivery system during the exhaust and filling period of the pump.

43. In combination, a single cylinder pump. a faucet controlled delivery system for the pump, a steady flow chamber having means for maintaining a fluid pressure upon the fluid in said chamber for discharge, said chamber furnishing the discharge for the delivery system between strokes of the pump, and a valve controlled by the fluid contents of said steady flow chamber overning admission and exhaust strokes o the pump.

44. In combination, a pump barrel adapted to be submerged in the liquid to be pumped, a steady flow chamber, a passageway connecting the pump and the steady flow chamber, said passageway having a check valve for preventing flow from the steady flow chamber to the pump, valve means controlled by the water content of the steady flow chamber for governing the individual strokes of the pump, a delivery system communicating with the steady flow chamber,

and means controlled by emptying of the steady flow chamber for preventing air from being discharged from the pump into the steady flow chamber.

45'. In combination, a single cylinder pump adapted to be submerged in the liquid,

a steady flow chamber connected to the pump, a check valve for preventing flow of fluid from the steady flow chamber to the pump, means controlled from the steady flow chamber governing the individual strokes of the pump, and'lneans for closing the communication between the pump and the steady flowchamber when the steady flow chamber is emptied.

46. In combination, a pump adapted to be submerged in the liquid to be pumped, a steady flow chamber, a pipe connecting the pump with the steady flow chamber, a check valve governing said pipe, means for maintaining a pressure on the liquid in the steady flow chamber for providing a satisfactory pressure for discharge, and means for closing off the connection between the pump and the steady flow chamber when the steady flow chamber is emptied.

457. In a device of the class described, a vertical pipe having a cylinder at its upper end, a piston in said cylinder, one side of the cylinder being open to said'pipe, means for admitting motive fluid to the pipe at all times, means for intermittently admitting motive fluid to the other end of the cylinder, a valve cage on the lower end of the pipe, said valve cage having a central chamber adapted to communicate with a pneumatic pump,an admission port leading into said central chamber, and an exhaust port leading into said central chamber, and valve means in the central chamber for 0hstructing said ports one at a time, said valve means being connected to the piston in the cylinder. I

48. In ad'evice of the class described, a vertical pipe having a cylinder at its upper end, a piston in said cylinder, one side of the cylinder being open to said pipe, means for admitting motive fluid to the pipe at all times, means for intermittently admitting motive fluid t0 the other end of the cylinder, a valve cage on the lower end of the pipe, said valve cage having a central chamber adapted to communicate with a pneumatic pump, an admission port leading into said central chamber, and an exhaust port leading into said central chamber, valve means in the central chamber for obstructing said ports one at a time, said valve means being connected to the piston in the cylinder, said valve casing member having a hollow tubular extension at its lower end adapted to be put in communication with a pump, said extension being threaded, and a funnel shaped coupling member adapted to cooperate with said threads.

49. In combination, a main pump chamber, an auxiliary pump chamber, a passage- 7 way for liquid connecting said chambers, a closed delivery system connected to sald auxiliarv chamber, motive fluid valve means for admitting and exhausting motive fluid to for operating said valve means for the in-' dividual strokes of the pump, a control valve operated in accordance with the quantity of liquid in the auxiliary pump chamber said control valve governing said valve means.

50. In combination, a main pump chamber, an auxiliary pump chamber, a passageway for liquid connecting said chambers, a closed delivery system connected'to said auxiliary chamber, valve means for admitting and exhausting motive fluid to and from the main pump chamber independently of the level conditions therein for the individual pump strokes, a pressure motor for operatmg said valve means, a control valve operated in accordance with the quantity of liquid in the auxiliary pump chamber said control valve governing said valve means, and means for maintaining a predetermined minimum pressure on the liquid for dis charge in the auxiliary chamber regardless of the quantity therein, said auxiliary chamher being of sllflicient capacity to supply the normal flow of li uid from the system during the filling perlod of the pump.

51. In combination, a main pumping chamber in the well, an auxiliary pumping chamber, a connection for liquid between the two chambers, a discharge system connected to the auxiliary chamber, a motive fluid pipe extending from the head of the well downto the main chamber, said pipe andthe main chamber having a readily disconnectible coupling in the well, admission and exhaust valves for motive fluid carried by said pipe above said coupling, and a motor controlled from the auxiliary pumping chamber to operate the admission and exhaust valves.

52. In combination, a main pump chamber having inlet and discharge valves for liquid, an exhaust port, an exhaust valve adapted to close the exhaust port for each discharge stroke of the pump and being adapted to beheld to its seat by the pressure of the compressed air in the chamber, a fluid pressure motor for pulling the valve off seat against pressure, a control valve for the motor, an auxiliary pump chamber communicating with the main pump chamber and means governed by the water in the auxiliary pump chamber for actuating said conan exhaust port for motivefluid, an exhaust valve, an admission port and an admission valve adapted to be held on its seat by pressure of the motive fluid before it enters the pump chamber, an auxiliary pump chamber, a check valve connection between the two chambers, a motor for operating the admission and exhaust valves, and a control valve actuated when the auxiliary pump chamber is full to open the exhaust valve and apply the admission valve to its seat.

54. In combination, a pump chamber having liquid inlet and discharge valves, a source of motive fluid, main valve mechanism for controlling the admission and exhaust of motive fluid to and from the pump chamber, a motor for operating said main valve mechanism, and a pilot valve controlled by the discharge of liquid from the pump chamber for governing said motor.

55. In combination, a pump chamber having liquid inlet and discharge valves, a source of motive fluid, main valve mecha nism for controlling the admission and exhaust of motive fluid to and from the pump chamber, a motor for operating said main valve mechanism, a pilot valve controlled by the discharge of liquid from the pump chamber for governing said motor, and means for controlling the discharge of liquid from the pump chamber.

56. In combination, a single cylinder pump chamber having fluid inlet and discharge valves, a closed faucet controlled delivery system. a steady flow chamber for receiving fluid at each stroke from the pump chamber, and valve mechanism controlling the admission and exhaust of motive fluid to and from the pump chamber, said valve mechanism being responsive to the flow of fluid into and out of said steady flow chamber.

57. In combination, a single cylinder pump chamber having liquid inlet and discharge valves, a closed faucet controlled delivery system, a steady flow chamber for receiving liquid at each stroke from the pump chamber, said steady flow chamber being of sufficient capacity to supply the normal discharge of liquid from the svstem during the filling period of the pump chamber, and valve mechanism controlling the admission and exhaust of motive fluid to and from the pump chamber, said valve mechanism being responsive to a predetermined accumulation of liquid in the steady flow chamber to cut off the motive fluid and connect the pump chamber to exhaust.

58. In combination. a single cylinder pump having liquid inlet and discharge valves, and admission and exhaust valves for motive fluid, a closed faucet controlled system and a steady flow chamber connected to said system, said steady flow chamber having means controlled both by the discharge of liquid from the pump and by the discharge of water from the steady flow chamber for controlling the admission and exhaust valves for the individual strokes of the pump, said steady fioW chamber being of sufficient ca pacity to supply the normal discharge of liquid from the system during the filling strokes of the pump.

59. In combination, a primary pumping chamber and an auxiliary pumping chamber both connected to a closed delivery system, means for maintaining a substantially constant pressure on the liquid in the system, said means having connection with the aux iliary pumping chamber, the primary pumping chamber having means for intermittently lnjecting liquid into the auxiliary pumping chamber and valve means controlled by the pressure maintaining means of the auxiliary chamber for governing the application of motive fluid to operate the primary pumping chamber, said auxiliary pumping chamber being of suflicient capacity to provide the normal discharge of liquid from the delivery system during the filling period of the primary pumping chamber.

60. In combination, a primary pumping chamber and an auxiliary pumping chamber both connected to a closed delivery system, means for maintaining a substantially constant pressure on the liquid in the sys tem, said means operating on the liquid in the auxiliary pumping chamber, the primary pumping chamber having means for intermittently injecting liquid into the auxiliary pumping chamber, and means controlled by the accumulation of a predetermined quantity of liquid in the auxiliary pumping chamber to disconnect the primary pumping chamber from the source of motive fluid, said auxiliary pumping chamber being of suflicient capacity to supply the normal discharge of liquid from the system during the filling stroke of the primary pumping chamber.

61. In combination. a primary pumping chamber and an auxiliary pumping chamber both connected to a closed faucet controlled delivery system, means for maintaining a substantially constant pressure on .the liquid in said auxiliary pumping chamber the primary pumping chamber having valve means governing the individual strokes of the same for injecting Water into the auxiliary pumping chamber and means controlled by the accumulation of a predetermined quantity of liquid in the auxiliary pumping chamber to connect the primary chamber to exhaust, said auxiliary pumping chamber being of sufficient capacity to provide the normal delivery of liquid from the system during the filling stroke of the primary pumping chamber.

62. In a faucet controlled system, a pump chamber having liquid inlet and discharge liquid from the system during the filling stroke of the pump chamber.

63. In a faucet controlled system, a pump chamber having liquid inlet and discharge valves, a'discharge passageway communieating with a closed delivery system, a. steady flow chamber communicating with the closed system, motor means for said steady flow chamber actuated when the liquid in the steady flow chamber has reached a predetermined minimum, and a valve operated by said motor governing the admission of motive fluid to the pump chamber, said steady flow chamber being of sufficient capacity to provide the normal discharge of liquid frogn the system while the pump chamber is filling.

64:. In a device of the class described, a

- )umo chamber havin 1i uid inlet and discharge valves, a discharge passageway communicating with a closed system, a steady flow chamber communicating with the system, a motor for said steady flow chamber actuated when the liquid in the steady flow chamber has reached a predetermined maximum, and a valveoperated by said motor governing the exhaust of motive fluid from the pump chamber, said steady flow chamber being of suflicient capacity to provide the normal discharge of liquidirom the system while the pump chamber is filling.

65. In combination, a pump barrel, a

r steady flow chamber, a closed discharge system communicating with the steady flow chamber, an unrestricted communication from the pump barrel to the steady flow chamber, and a valve controlled fby the quantity of liquid in the steady flow chamber, governing the individual strokesof the pump, said steady flow chamber being of suflicient capacity to provide the normal discharge of liquid from the system during the filling stroke of the pump barrel.

66. In combination, a single cylinder pump for receiving liquid and discharging the same in intermittent strokes, a source of motive fluid, a closed delivery system, a tank communicating with the pump and with the closed system, said tank being adapted to receive liquid during the discharge stroke of the pump whether the delivery system is open or closed, and to discharge liquid into the delivery system during filling strokes of the pump only When the delivery system is opened, and means responsiveto the filling of the tank for disconnecting the source of compressed air and connecting the pump to exhaust, said tank being of sufiicient capacity to supply the normal discharge of liquid from the system the pump only when the delivery system is opened, and means, responsive to the low content condition of the tank for closing the exhaust valve and connecting the source of motive fluid to the pump, said tank being of suflicient capacity to supply the normal discharge of liquid from the system during the filling strokes of the pump.

68. In a device of the class described, a pump chamber in the well having inlet and discharge check valves for liquid, an exhaust port, an exhaust valve held to its seat by the pressure in the pump chamber .to close said port, a fluid pressure motor for pulling the exhaust valve from its seat against the pressure, and control means for the fluid pressure motor at the head of the well and independent of the level of liquid in the chamber.

69. In combination, apump chamber having liquid check valves, an exhaust port and an exhaust valve adapted to be held on its seat by the pressure within the pump chamher, a fluid pressure motor for opening the exhaust valve against pressure, a steady flow chamber connected to the pump chamber, and a valve controlled by the quantitative condition of the liquid in the steady flow chamber for governing the operation of the motor to operate the exhaust valve foreach stroke of the pump.

70. In combination, a single cylinder pump chamber in the Well having check valves for liquid inlet and discharge, a steady flow chamber connected to the pump chamber, an exhaust port for the pump chamber adjacent the head of the pump, an exhaust valve adapted to be held to the port by pressure within the pump chamber, a motor element at the head of the Well, said motor element having a cylinder rigidly connected with the head of the pump, and a piston connected to the exhaust valve, said piston moving in the cylinder.

71. In combination, a single cylinder pump chamber in the Well, a steady flow chamber connected to the pump chamber, an exhaust port for the pump chamber adjacent the head of the pump, an exhaust valve adapted to be held to the port by pressure within the pump chamber, a motor element adjacent to the head of the well, said motor element having a cylinder rigidly connected with the head of the pump, a piston connected to the exhaust valve, said piston moving in the cylinder, and spring means interposed be tween the piston and the exhaust valve for throwing the exhaust valve away from its seat after said valve has started to open.

72. In combination, a single cylinder pump chamber in the well, a steady flow chamber connected to the pump chamber, an exhaust port for the pump chamber adjacent the head of the pump, an exhaust valve adapted to be held to the port by pressure within the pump chamber, a motor element adjacent the head of the well, said motor element having a cylinder rigidly connected with the head of the pump, a piston connected to the exhaust valve, said piston moving in the cylinder, and means for throwing the exhaust valve away from its seat after the valve has started to open, said piston and said exhaust valve having a lost motion connection.

73. In combination, a pump having water inlet and discharge check valves, a closed delivery system for the pump, a diaphragm chamber communicating with the discharge system, said chamber having a fluid pressure operable diaphragm, a compressed air pipe leading to the pump, an air valve governed by said diaphragm for shutting off the compressed air, and means for throwing the valve suddenly from open to closed posi tion.

74. In combination, a pump having Water inlet and discharge valves, a water discharge pipe connected to a closed delivery system, a compressed air supply pipe for the pump, a fluid pressure motor operated by the discharge of water from the pump into the closed delivery system when the system is completely closed, and a valve operated by the motor for shutting oil the supply of compressed air from the pump, said valve and motor having means for throwing the valve positively and quickly from one position to another, independently of the rate of water discharge from the pump into the system.

75. In combination, a pneumatic pump having check valves for admission and discharge of liquid, a source of compressed air for the pump, a closed delivery system, a closed tank connected to the system, a yield ing member connected to the tank and a motive fluid admission valve controlled by the yielding member when a predetermined amount of water is in the tank for shutting off the source of motive fluid at each stroke of the pump.

76. In combination, a pneumatic displacement pump cylinder, a source of compressed air for the pump cylinder, a closed delivery system, a closed tank connected to the system, a yielding member connected to the tank, a valve controlled by the yielding member when a predetermined amount of water is in the tank for shuttin ofl the source of compressed air from t e pump cylinder, said valve having means for suddenly throwing the valve to closed position independently of the rate of movement of the yielding member and connecting said chamber to exhaust.

77. In combination, a main pneumatic displacement pump chamber, a water discharge passageway, a source of motive fluid, a valve for motive fluid, an auxiliary pump chamber and a closed water delivery system connected to the discharge passageway, said auxiliary pumping chamber being of suflicient capacity to provide the normal discharge for the dellvery system during the filling strokes of the main chamber, a motor member operated by the discharge of a predetermined amount of water from the main pump chamber into the auxiliary chamber to operate said valve to cut oil the supply of compressed air from the main chamber.

78. In combination, a main pneumatic displacement pump chamber, a water discharge passageway, a source of motive fluid, a valve for motive fluid, an auxiliary pump chamber and a closed water delivery system connected to the discharge passageway, a motor member operated by the discharge of a predetermined amount of water from the main pump chamber into the auxiliary chamber to operate said valve to cut ofl the supply of compressed air from the main chamber, and a snap action mechanism for throwing the valve positively to closed position.

79. In combination, a main pump chamber, a water discharge passageway, a source of motive fluid, a valve for motive fluid, an auxiliary pumping chamber and a closed water delivery system connected to the discharge passageway, said auxiliary pumping chamber being of suflicient capacity to provide the discharge from the delivery system during the filling stroke of the main pump chamber, a motor member operated by the discharge of a predetermined amount of water from the auxiliary pumping chamber through the delivery system to operate the valve to admit compressed air to the main pump chamber for each stroke of the pump.

80. In combinatlon. a pump chamber, a

source of compressed air. a motor cylinder, :1 piston in the cylinder, means for admitting compressed air at all times on one side of the piston, means for admitting and exhausting compressed air on the other side of the piston to control the individual pump strokes, a valve device having puppet type valve members for controlling admission and exhaust of the compressed air to and from the pump chamber.

81. In combination, a pump chamber, a source of compressed air, a motor cylinder, a piston in the, cylinder, means for admitting compressed air at all times on one side of the piston, means for admitting and exhausting compressed air on the other side of the piston to control the individual pump strokes, a valve device having puppet type valve members for controlling admission and exhaust of the compressed air to and from the pump chamber, one of the valve members being held to its seat by the pressure of the compressed air thereupon.

82. In combination, a pumping chamber, a source of compressed air, a motor cylinder, a piston in the cylinder, means for admitting compressed air at all timeson one side of the piston, means for admitting and exhausting compressed airon the other side of the piston to control the individual pump strokes, a valve device having puppet type valve members for controlling the admission and exhaust of the compressed air to and from the pump chamber, said valve members having a lost motion connection between them, and a spring connecting the piston and valve device.

83. In combination, a pumping chamber, a source of compressed air, a motor cylinder, apiston in the cylinder, means for admitting compressed air at all times on one side of the piston, means for admitting and ex hausting compressed air on the other side of the piston to control the individual pump strokes, a valve device having puppet type Valve members for controlling the admission and exhaust of the compressed air to and from the pump chamber, said exhaust valve member being held to seat by the pressure of the air thereupon.

84.. In combination, a pumping chamber, a source of compressed air, a motorcylinder, a piston in the cylinder, means for admitting compressed air at all times on one side of the piston, means for admitting and exhausting compressed air on the other side of the piston to control the individual pump strokes, a valve device having puppet type valve membersfor controlling the admission and exhaust of the compressed air to and from thepump chamber, said exhaust valve member being held to seat by the pressure of the air thereupon, said piston having means at one endfor decreasing the area subjected to pressure at one end of the stroke.

85. In combination, a pump chamber, a source of compressed air, a motor cylinder, a piston in the cylinder, means for admitting compressed air at all times on one side of the piston, means for admitting and exhausting compressed air on the other side of the piston to control the individual pump strokes, a valve device having p ppet typ valve members for controlling admission and exhaust of the compressed air to and from the pump chamber, said puppet valve members lying in line with each other, a valve casing having a central chamber communicating with the pump chamber and having admission and exhaust ports in line with-the valve members, said admission port communicating with said one side of the piston.

86. In combination, a pneumatic displace-' charge of water from the closed system toopensaid valve against the pressure of the motive fluid.

87. In combination, a pneumatic pump chamber connected to a closed discharge system having an auxiliary pumping device, said system and said auxiliary pumping device being always maintained under pressure, said pump chamber being adapted when no water is discharged from the system to be disconnected from the motive fluid and connected to exhaust, a compressed air admission valve and a motor piston operated by the motive fluid to hold the admission valve positively to seat.

88. In combination, a closed delivery systern, a pneumatic pump chamber adapted to fill with liquid when no water is being drawn from the system, an auxiliary pumping chamber in communication with the dclivery system constantly under pressure and having means controlling the application of motive fluid to the .pump chamber after a predetermined amount of liquid has been drawn from the auxiliary pumping chamber.

89. In a system of the class described, a pump barrel adapted to be submerged in the liquid in the well, a water discharge pipe running from the barrel to the head of the well, a motor element at the head of the well controlled by the liquid discharged at eachstrokeof the pump, a motive fluid pipe running from the head of the well to the pump barrel, a valve for said latter pipe governedby said motor for controlling the admission and exhaust of motive fluid to and from the pump barrel and a releasable coupling in the well adjacent the pump operable from the head of the well for permitting the separation of the motive fluid pipe anclll leaving the pump in the liquid in the we 90. In a system of the class described, a pump barrel adapted to be submerged in the liquid in the well, a water discharge pipe running from the barrel to the head of the well, a motor element at the head of the well controlled by the liquid discharged at each stroke of the pump, a motor fluid pipe running from the head of the well to the pump barrel, a valve for said latter pipe governed by said motor for controlling the admission and exhaust of motive fluid to and from the pump barrel and a releasable coupling in the well adjacent the pump operable from the head of the well for permitting the separation of the motive fluid pipe and leaving the pump in the liquid in the well, said coupling having a flaring guide to permit of easy connection of the motive fluid pipe.

91. In combination, a main pump chamber in the liquid, an auxiliary pump chamber above the liquid, a connecting passageway for liquid having a check valve for preventing the flow of water from the auxiliary chamber back to the main chamber, a motor having a movable element subject to the pressure of the liquid discharged from the main pump chamber and a control valve governing the admission and exhaust of motive fluid to and from the pump for the individual strokes thereof, said valve being operated by said motor, said auxiliary pumping chamber being of suflicient capacity to supply the discharge during the filling stroke of the main pump chamber.

92. In combination, a main pumping chamber, an auxiliary pumping chamber, a check valved passageway between them, means for admitting pressure to the main chamber to drive the liquid from the main chamber into the auxiliary chamber, and means controlled by filling of the auxiliary chamber for releasing the pressure on the main chamber to permit the main chamber to fill, said means comprising a pressure operated motor and a valve for motive fluid, said auxiliary pumping chamber bei of suflicient capacity to provide discharge while the main pumping chamber is filling.

93. In combination, a pump chamber having liquid inlet and discharge valves and motive fluid inlet and exhaust ports. valve means for alternately obstructing said ports, an auxiliary chamber, a liquid discharge passageway between the pump chamber and the auxiliary chamber, means operated by the pressure in the auxiliary chamber when the same is filled for controlling said valve means, to obstruct the inlet port and open the exhaust port at each stroke of the pump, said auxiliary chamber being of sufficient capacity to provide the liquid discharge during the filling period of the pump chamber.

9a, In combination a main pump chamber, an auxiliary pump chamber, a closed delivery system connected to the auxiliary chamber, valve means adjacent the main chamber for admitting and exhausting pressure to and from the main chamber, a motive fluid pressure pipe leading to said main chamber and controlled by said valve means, a liquid column and a motor element operated by said liquid column for operating said valve means and a valve device governed by filling of the auxiliary chamber with liquid from the main chamber for applying pressure to the liquid column to actuate said motor element.

. 95. In combination, a closed delivery system. a main pumping chamber submerged in the liquid to be pumped, liquid inlet and discharge valves for said chamber, an auxiliary pumping chamber above the liquid, a passageway connecting the main chamber with the auxiliary chamber, said auxiliary chamber having a yielding member subjected to pressure within the auxiliary chamber, a motive fluid admission and exhaust valve for the main chamber controlled by said yielding member for admitting and exhausting motive fluid to and from the main chamber at each stroke of the pump, said auxiliary chamber having means for expelling liquid therefrom in sufficient quantity to provide the discharge from the system during the filling of the main chamber.

96. In combination, a closed delivery system having normally closed outlets, a main pumping chamber submerged in the liquid to be pumped, liquid inlet and discharge valves for said chamber, an auxiliary pumping chamber above the liquid. a connection between the main chamber and the auxiliary chamber, a motive fluid admission and exhaust valve for the main chamber for admitting and exhausting motive fluid to and from the main chamber for each stroke of the pump, and a pressure operated motor element for said valve, controlled by filling and emptying of the auxiliary chamber, said auxiliary chamber having means operated by motive fluid for expelling liquid therefrom between filling strokes of the main chamber.

97. In combination, a closed delivery system having normally closed outlets. a main pumping chamber in the liquid and an auxiliary pumping chamber above the liquid, said chambers being connected together for supplying liquid to said system, a main motive fluid valve for admitting and exhausting motive fluid to and from the main pumping chamber for each stroke of the pump, means for discharging the liquid from the main chamber when the outlets are closed only into the auxiliary chamber, and means governed by filling of the auxiliary chamber when said outlets are closed for operating the valve to connect the main chamber to exhaust until the liquid in the auxiliary chamber drops to a predetermined minimum and means for maintaining pressure by motive fluid upon the liquid in the auxiliary chamber while the main chamber is connected to exhaust.

98. In combination, a pump having inlet and discharge check valves for liquid, a closed delivery system for the pump, a chamber communicating with the discharge system on said chamber having a fluid pressure operable member, a source of motive fluid for the pump, a valve governed by said member for shutting off the motive fluid, and means controlled by the member for throwing the valve suddenly from open to closed position.

99. In combination, a pneumatic pump chamber connected to a closed discharge system having an auxiliary pumping device, said system being always maintained under pressure, said pump chamber being adapted when no water is discharged from the system to be disconnected from the motive fluid and connected to exhaust, a compressed air admission valve and a motor piston operated by the motive fluid to hold the admission valve positively to seat, said auxiliary pumping device being of sufiicient capacity to provide a satisfactory discharge from the closed system during the filling period of the pump chamber.

100. In combination, a main pump chamber, an auxiliary pump chamber, a closed delivery system connected to the auxiliary chamber and constantly maintained under pressure, valve means adjacent the main chamber for admitting and exhausting pressure to and from the main chamber, a motive fluid pressure pipe leading to said main chamber and controlled by said valve means, a liquid column and a motor element operated by said liquid column for operating said valve means, and a valve device governed by the discharge of a predetermined quantity of liquid from the main chamber into the auxiliary chamber toactuate said main valve to apply pressure to the liquid column to actuate said motor element.

101. In a system of the class described, a pump barrel adapted to be submerged in the liquid to be pumped, a distribution sys tem connected to the pump barrel, a motor element controlled by the liquid discharged at each stroke of the pump, a motive fluid pipe leading to the pump barrel, a valve for said latter pipe governed by said motor for controlling the admission and exhaust of motive fluid to and from the pump barrel and a releasable coupling in said pipe between said valve and said pump for permit ting the removal of the motive fluid pipe and said yalve and leaving the pump in the liquid in the well.

102. In combination, a pumping chamber having liquid inlet and discharge valves and,

a main air valve for admitting and exhausting motive fluid to and from the pumping chamber, a closed system having outlets, and means governed by the difference in rate of flow between air and liquid to said outlet for stopping the operation of the pump when the liquid fails to fill the pump.

103. In combination, a single cylinder pump having liquid inlet and discharge valves and a main air valve for admitting and exhausting motive fluid to and from the pump, a normally closed system having a steadyflow chamber, and means governed by emptying of the steady flow chamber for stopping the operation of the pump to prevent wastage of the motive fluid.

104. In combination, a pump having a head member, a passage through said head member for the discharge of water, another passage in the head member for admission and exhaust of motive fluid, a Water discharge pipe connected to said first passage, an air pipe connected to said second passage, a union connected to said air pipe, said union having a flared top with a threaded opening, and a threaded member adapted to connect to said union, said iunion being guided by said flared top. w

105. In apparatus of the character set forth, the combination of a cylinder into which the fluid to be lifted enters, and means for alternately introducing fluid-pressure into said cylinder to force the fluid therefrom, and venting said cylinder of the contained fluid pressure following the fluidlifting operation comprising a longitudi nally movable valve-device, a piston and cylinder device operating'said valve device, and means cooperating with the movable element of said piston and cylinder device for presenting to the movement of the latter an overcomable resistance near the end of its stroke only.

106. In apparatus of the character set forth, the combination of a cylinder into which the fluid to be lifted enters, and means for alternately introducing fluid-pressure into said cylinder to force the fluid there from, and venting said cylinder of the contained fluid pressure following the fluidlifting operation comprising a longitudinally movable valve-device, a piston and cylinder device operating said valve device, and means cooperating with the movable element of said piston and cylinder device for presenting to the movement of the latter an overcomable resistance near the end of its stroke only, in opposite directions.

107. In apparatus of the character set forth, the combination of a cylinder into which the fluid to be lifted enters, and means for alternately introducing -fluid-pres sure into said cylinder to force the fluid therefrom, and venting said cylinder of the contained fluid-pressure following the fluidlifting operation comprising a longitudinally movable valveevice, a piston and cylinder device operating said valve device, and spring means cooperating with the movable element of said piston and cylinder device for presenting to the movement of the latter an overcomable resistance near the end of its stroke only.

108. In combination, a single cylinder pump having inlet and discharge check valves and adapted to be submerged in the liquid to be pumped, an air spring connected to said pump, and means controlled by the amount of liquid in the air spring for controlling the admission of and exhaust of motive fluid to and from the pump.

In witness 'whereof, I hereunto subscribe my name this 20th da of July A. D. 1917.

BUR ON s. AIIKMAN.

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