US1691664A - Valve for water lifts - Google Patents

Description

Nov. 13, 1928. 1,691,664

v L. E. MORRISON VALVE FOR WATER LIFTS Filed 006.16. 1924 KIZ/'(974, Z5 /a f7 \\1'/ g/9 A /f Z5 ,L 6 #r v1 /6 ,27T/f5 /4 17 3f 40 4/ L12/ing' lfIoto atroz mag Patented Nov. 13, 1928.

UNiTED STATES LOIIIS E. MQRRISON, OF SALIDA, COLORADO.

VALVE Fon WATER Lrr'rs.

Application inea october 16, 1924, seriai VNo. 744,035.

This invention appertainsto slide valves and more particularly to an improved valve mechanism for controlling the flow of an op erating fluid lfor a piston and cylinder.

Another object of the invention is to'provide a novel valve and operating mechanism, which is an advancement in the art over the construction shown in my Patent 1,481,619 issued to me anuary 22, 1924 for. pneumatic water lift', and the improved valveis adapted to be utilized on a pumping system such as shown in the mentioned patent.

A further object of the invention is to provide a novel valve body and a novel rocker head connected with the valve body.

A further obj ect of the invention is to prov,vide novel means for operatingthe rocker head from the piston at each `endof the piston stroke.

provide novel means for holding theroclrer head in anadjusted position after being operatedvby the piston at each end ofthe stroke ,f

thereof. l v

A still further obj ect of the invention is to provide an. improved device of the above character, which will be durable and efficient 4in use, one that will beV simple and Aeasy to manufacture and one which can be placed upon the market at a small cost.

With these and other object-s in view,-the invention-consists in the novel-construction, arrangementand formation of parts, aswill be hereinafter more specifically described,

claimed, and illustratedin thevaccompanying drawings, in which drawings,

Figure 1 is a vertical longitudinal section illustrating the novel rocker head and valve bodyand the operating means for the rocker head,l l

Figure 2 is a transverse section taken on the line 2-2 of Figure 1,

Figure 3 is a view similar to Figure 1, showing the opposite position to whichthe mech- 4l anism moves. v

Figure 4 is a section taken substantially upon the line 4 4 of Figure 3.

Referring to the drawings in detail, wherein similar reference characters designate corresponding parts, throughout the. several views the letter A generallv indicates the improved valve operating mechanism, which comprises thel valve casing 10 including the spaced parallel sidewalls 11 and 12 and the end walls 1 3. Top and bottom walls 14 and v15 are connected with the upper and lower A further object of the invention is to' end respectively of the side and end walls.

The lower wall 15 is provided `with ports y16 and 17, for a purpose7 which will be ,hereinv after more fully described. The rear wallfll is also providedv with a pair of spaced eX'- haust ports 18 and 19, thev purpose of whichy -and the cylinder h'aspreciprocately'mountedv therein the piston 21. The piston21 is provided withY a piston rod`22 which'extends out of thecylinder head along side ofthe'valve casing 10. The eXtreme upper end of the piston rod 22 is provided with an inwardly lextending arm 23 which over'lies the upper wall 14 of the valve casing; v 4 As clearly shown in Figure 1 of the drawing the port 16 has communicating therewith end of the cylinder.

- A semi-circular shapedA slide valve '.25 is i is obvious that when the valve'is disposed at y one side of the casing, asto the left, as shown f in Figure 1 of the drawing that the port 17 will be uncovered which will permit theflow of the operating fluid from the valve casing into the 'upper end of the cylinder for oper- -Ainto the pipe 24 and then -into thellower end of the cylinder for forcing the piston 21 upsemi-circular port'26 Y. and the terminals of the arcuate port 26 are provided with-right angularly Vdisposed outlet ways 27. When the port 17 is uncovered, it can be seen that wa'rdly.y This valve 25 is provided with a y the arcuate port 26 over lies the port`16 I which permits the exhaust of the lower end of thecylinder to low into the port or way 26. The way 27 communicates kwith the exhaust kportil) so that the exhaust v aircan exhaust into the atmosphere.

VWhen the'slide valve of the body 25 ismoved to right so as to uncover the port16 the arcuate port y26 communicates with the port 17 and the way- 27 registers with the exhaust p0rt'18 and the air is'allowed to eX- f haustfrom the upper ends vof the cylinder 1 the plunger and normally urges the lower endr of the plunger into intimate Contact with a' notch 29 formed in thek periphery of the rocking head 30. This rocking head 30 is of a substantial quadrant'shape and is pivoted at a point adjacent its,anglel on a suitable pivot pin 31. The notch 29 is formed in the periphery of the head adjacent to the loweredge thereof. The rocking head 30 is alsoV Vprovided with a notch133 the purpose of which y lone face of the head 30 and these pins will be` hereinafter more fully described. .A air of outstanding pms 34 and 35 are carried are arranged in spaced relation adjacent to the upper and lower ends of thel head.

y throng 15, of the VSaid casing"andr asclearly shown in Figure 3 ofthe draw-ing, the arm 23 formed on the piston rod" 22 is adapted lto engage the upper end'of the. rod 364 toward the end ,of the piston down stroke. Thel lower end of the operating rod 3G extends into the cylinder 20 and is adaptedl to be operated'by the piston 21 of the cylinder at the end-of the, piston up stroke. AnV operating arm 37 is; rigidlyfsecured to the'operatingrod 3,6

andthils :arm is provided with Va reducedv angularly extending linger 38 which is disposed between the pins 34 and '35' and is adapted to engage the said pins upon the 'actuationof the rod V36 by the piston rod andv the piston.

lIn order toy hold the rocking head vin. an adjusted' position' atelescopic plunger 40 is pivoted at its upper end as ati 41 to the topl Wall of this valve casing 10 and the 'lower y ysliding section of t-he cylinder` carries a head 42 for fitting in the notch 33 in the rocking head.v An expansion springv 43 is coiled about the wall of the notch lin the lug at all times.

In operationf ofthe improved device, presuming that the piston 21 is at the upper end of the cylinder and the valve 35 atthe left as shown in Figure 1 of the drawing, thev air or f other operating medium will yil'ow into the casing through the supply pipe 44 and' then through the port 17' from the casing into the upper end of the cylinder forcing the piston to the opposite end thereof. The piston rod 22 will of course beebrought down with the piston and the arm 23 thereof will engagethe upper end of the operating rod 36' whenl the vpiston has almost completed its working stroke and will move the rod 36 downward in i its casing.` This will bring the iinger 38 of the operating arm 37l into contact with the pin 34 and swing the rocking head on its pivot. rllhe `)in 28 will of course be engaged, by one wall of the notch 29 vformed in the head and the valve body rwill be slid tothe right so as to uncover the port 16 and move the arcuate port 26 into registration with the port 17'. The

lug 32 oi the rocking head will be swung on the other side of the pivot of the rocking head and the spring pressed plunger will normally holdy the head in the position just described until again operated. VThe compressed air from .the casing will now flow through the pipe 24 to the lower end of the cylinder and vthus orccback thepi'ston to its raised position and when the piston is nearing the end oi its travel the upper end thereofwill engage the operating rod 36 and raise the rod andV more the finger 33 in engagement with the upper pin 35 'of the roclingh'ead, swinging the head on its pivot 3'1. The movement of the headwill slide the valve bod 25 tothe left v ,again uncovering the port 17;k he'telescopic plunger A40 willV now assume the Aposition shown inFigure 1 of the drawing and normal*- ly hold the rocker head in the position shown.

From theforegoing description, ritcan be Vseen that I have provided anovel valveoperating mechanism of exceptionally simple and durable construction, which will1 eifectively u accomplish the purpose intended.

Changes as to details may be made without departing vfrom the spirit or the scope orf-this invention, but Y f' That Iclaim as new is: e

scribed', comprisinga closed chest having an inlet, exhausts and a pair of outletsto an engine cylinder, an'outlet, asliding valve block acting when actuated toy open or close one of 1. A valve 'structure of the character desaid outlets and connect the other outlet with 5 an exhaust, a pin member projecting" from one face of said va'lvebl'ock, a quadrant body pivotall'y mountedr within the chest and' having' a notch formed therein for looselyreceiving said pin, a pair of spaced pin members uponone facev of said body, a reciprocable arm within the chest alternately engaging the pin of saidl quadrant to oscillate the same upon its pivot and to cause thequadrant to impart 'reciprocatory movement to thevalve bloclrnieans controlling said quadrant -forimparting a snap action to the movementthereof. 'Y

2.v In combination, in a mechanism of the character described a cylinder, a reciprocable piston within said cylinder, a piston rod carried by the pistonand extending from one end of said cylinder and having a laterally directled arm upon Vthe free outer end thereof', a

valve structure arranged adjacent that end of said cylinder from which said piston rod projects, comprising a chest having a main inlet, a pair oi' exhausts and a pair of outlets, each of said'outlets leading into said cylinder at one side of the piston, a reciprocatory'valve body within the chest adaptedf to alternately set up communication between an outlet and an exhaust and open. an outlet and an exhaust, an oscillatory element within said chest operatively engaging said valve bod-y, a rod ex- Vtending through said chest and having one end projecting into said cylinder for engagement by the piston and the other end adapted to be engaged by said late-ral arm, meansY whereby upon the reciprocation of said rod, by alternate movement thereof by said piston and laterally extending arm, said oscillatory member will be actuated to shift the valve body, and means controlling said oscillatoryf Y to open into an engine cylinder at one side of a piston therein, a sliding valve block within the chest having a steam passageway formed therethrough and terminating at each end in a pair of outlets, one of said pair of `outlets of the valve block being designed to set up communication between an Outlet of the steam chest and an exhaust, a 'quadrant body mounted within the steam chestv above said valve block, means for settingup a loose connection between the quadrant vand the valve block, vertically reciprocating means inV the steam chest actuated by thek engine piston for swinging said quadrant to shift the valve block, meansfor imparting a snap action to Vthe movement of said quadrant. l

In testimony whereof I afX my signature.

Louis E. MORRISON.

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