US1051260A - Pump. - Google Patents

Description

G. C. RICHARDS.

PUMP.

APPLICATION FILED 114112.23, 1912. 1,051,260, Patented .131121, 1913.

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77 79 n avwmtoz 2f (21907596 'zeai Wmme@ GEORGE C. RICHARDS, OF BERKELEY, CALIFORNIA.

PUMP.

roamed Specification of Letters Patent.

PatentedJ an. 21, 1913.

Application lled March 23, 1912. Serial No. 685,737.

T0 all whom it may concern Be it known that I, GEORGE C. RICHARDS, a citizen of the United States, residing at Berkeley, in the county of Alameda and State of California, have invented certain new and useful Improvements in Pumps, of which the following is a specification, reference being had to the accompanying drawings.

This invention relates to improvements in pumps and has for its object to provide one or more spiral elevating blades arranged upon a rotary shaft mounted in the well casing, said blades being of such construction that the friction induced upon the walls `of the casing in the upward movement of the water is reduced to a minimum, thus materially lessening the amount of power required to operate the pump.

Another object df the invent-ion is'tg provide improved means for mounting the operating shaft in the well casing including a terminal bearing and one or more intermediate bearings together with a clutch device arranged on the shaft to grip the walls of the ,well casing and concentrically position the shaft therein, said supporting and posit-ioning devices being so mounted and arranged upon the shaft thatthe same may be entirely removed from the casing upon the removal of the operating shaft.

A further object of the invention is to provide a terminal bearing for the operating shaft of novel construction whereby the liability of sand, gravel and other extraneous material finding its way into the bearing seat is practically eliminated.

A still further obj ect of the invention resides in the provision of an operating shaft and a plurality of spaced elevating blades thereon, and bearings to position the shaft in the well casing arranged between the elevating blades, said bearings also acting to break up or divide the water and prevent its continued whirling motion so that it is more readily received and elevated by the upper spiral blade.

Another object of the invention is to provide a. pump of the above character which is particularly designed foruse in shallow wells and embodies in its construction many novel features which greatly increase its etticiency and convenience in practical use, while at the same time the entire device cost.

'be embedded in the hard rock at the With the above and other objects in view, the invention consists of the novel features of construction, combination and arrangement of parts hereinafter fully described and claimed, `and illustrated in the accompanying drawings, in which- Figure 1 is an elevation of a pump emf bodying the present invention, the well casing being shown in section; Fig. 2 is an enlarged vertical section of one of the elevating blades, the clutch device and the terminal bearing for the lower end of the operating shaft; Fig. 3 is an enlarged detail section of one of the intermediate bearings; Fig. 4 is a section taken on the line 1w-4 of Fig. 2; Fig. 5 is a section taken on the line 5-5 of Fig. 2; and Fig. 6 is a section taken on the line 6*.,6 of F ig. 2.

Referring in detail to the drawings 5 designates the tubular well casing, the upper end of which extends above the ground surface and is provided with a cap 6. The surface of this cap is provided .with a raceway 7 to receive the ball bearings 8 which are disposed between the cap and a collar 9 fixed upon theoperating shaft 10 which is concentrically disposedwithin the well casing and held in position by means to be later described in detail. To the upper end of the well casing 5 the fluid conducting pipe 11 is connected and is adapted to receive and convey the 'water discharged from the casing to a distant point where the same is to be utilized. To the upper end of the operating shaft 10 a beveled gear 12 is secured and a smaller gear 13 meshes with the gear 12, said latter gear being fixed upon the end of a power shaft 14 extending from an en'- gine or other suitable source of power supply.

In the lower end of the well casing 5 a sleeve 15 is threaded and this sleeve is provided with an inwardlyl extending annular flange 17 which forms a seat for the bearing block or base 18, said block being provided with radially disposed lugs 19 to be received in the longitudinal grooves 20 formed in the inner peripheral wall of the sleeve 15. This bearing block is further' provided with a plurality of depending spurs or tongues 21 which are ada ted to ottom of the well. The block 18 is provided with a reduced threaded boss 18 which receives one end of a bonnet 22,- thebther end of said bonnet being tapered or reduced in diameter and provided with an opening through which the lower end of the operating shaft 10 extends. Suitable packing material indicated at 23 is arranged within the bonnet 22 and the lower end of the shaft is reduced in diameter as at 24 to provide an annular groove forming a shoulder on the shaft. In this groove the packing material 23 is received whereby it will be readily seen that when the operating shaft is lifted, the bearing block or base 18 will also vbe lifted from the supporting flange 17 on the sleeve 15 so that said bearing is extracted with the shaft from the well casing.

Upon the operating shaft 10, two or more spiral elevating blades 25 are secured, said blades being provided with central sleeve portions 26 integrally connecting the several turns thereof, said sleeves receiving the operating shaft. These spiral blades are arranged in spaced relation upon the shaft as clearly shown in Fig. l and the same are preferably of concavo-convex form as clearly shown in Fig, 2, the concave surfaces of the blades being upwardly disposed. The extreme edges of the spiral blades which are disposed adjacent to the well casing are bent slightly inwardly as at 27 and act to direct the water inwardly and upwardly instead of outwardly against the walls of the casing. In this manner I aim to reduce to a minimum friction upon the walls of the well casing in the upward movement of the water caused b v the rotation of said spiral blades.

In order to maintain the operating shaft 10 in its central concentric position within the well casing, I provide upon said shaft between the lower'terminalbearing and the lowermost spiral blade 25 a clutch device which consists of a tubular sleeve o-r body 28 to receive the shaft upon which a plurality of radially disposed plates 29'are formed or rigidly secured. Upon each of these plates a cam member 30 is pivotally mounted, said members having toothed or serrated surfaces as indicated at 3l to exert a gripping action upon the inner wall of the well casing. These cam members are formed witlrarlns or levers 32 to which the ends of strings or cords (not shown) are adapted to be connected. Collars 33 are fixed to the shaft at opposite ends of the sleeve 28 to hold said sleeve against longitudinal movement thereon. When the operating shaft is inserted into the well casing, the cam members-30 are held out of gripping engagement with the walls thereof by pulling upon the strings connected there-- to as above mentioned. When the bearing on the lower endof the operating shaft is seated upon the flange of the sleeve 15, the strings are broken to release the cam members whereupon the same move outwardly into gripping engagement with the walls of the casing 5. This clutch device serves as an additional means of support for the shaft 10, the primary supporting means being embodied in thebearing at the upper end of the well casing.

In order to overcome all liability of contactbetween the edges of the spiral blades 25 and the well casing, I provide at intermediate points upon the operating shaft the additional positioning devices indicated generally by the numeral 33. Each of these devices consists of a tubular body 34 loosely engaged at its end with the operating shaft, said body being provided at its upper and lower ends with tapered or conical caps 35 which serve as deflectors to prevent sand entering between the shaft and the/ends of the body 34. Collars or washers 36 are also fixed upon the operating shaft at the upper and lower ends of said body to prevent its longitudinal movement.. A plurality of radiallyextending arms 37 are arranged upon the body 34 and are longitudinally bored as shown at 38. These tubular outer ends of the arms are provided with plates 39 disposed in parallel relation to the operating shaft, said plates having inwardly extending flanges 40 on their longitudinal edges. The upper and lower end edges of the plates 39 are notched or recessed as at 41 to receive the inwardly disposed end portions 42 of the spring plates 42. 39 carry pins 43 which are disposed in the bores 38 of the arms 37. The extreme ends ot' the plates 42 are preferably provided with lugs 42a so that the same will retain their positions upon the plates 39 when the shaft and its bearings or supports are removed from the casing 5. These spring plates 42 are sufficiently strong to prevent lateral movement or vibration of the operating shaft in the well casing so that the edges of the spiral blades 25 are at all times maintained out of contact with the well casmg.

By means of the above arrangement of shaft supporting and positioning devices, it will be readily seen that when the shaft is lifted and removed from the well easing, both the terminal bearing at the lower end thereof, the intermediate supports or bearings 33 and the clutch device at the lower end of the shaft are also removed bodily from the well casing. It is readily apple ciated that such assemblage of the various parts which permits of their simultaneous removal will be of great convenience in practical use as it admits of the quick and thorough cleaning of all portions of the invention. The intermediate bearing members for the shafts havinvr the arms 37 and plates 39 act to break up the whirling stream Vof water as it is passed from the lower to the upper spiral elevating blades 25 so that it more readily enters the lower end of the upper elevating spiral.

The plates e While the pump embodied in the forego-y ing description is primarily designed for use in shallow wells, it will be understood by those familiar with the art that many of the foregoing features may-,also be embodied in deep well pumps either for oil or water. lt

lwill also be understood that in vputting theV invention into practice, l do rnot desire to be limited to the precise number of spiral vblades 25 shown in the drawing, as they may beimultiplied as desired or foundnecessary in-vaccordance with the conditions or use. Owing tothe few parts employed and their simple construction, it will be seen that the same combine to produce a pump-which is extremely durable and efficient in practical operation, and may be manufactured at comparatively small cost.,

While I have shown anddescribedthe preferred construction and arrangement of the various elements, it will be obvious that uthe invention is susceptible of considerable modication without departing from the essential feature or sacrificing any of the adv vant-ages thereof.

` Having thus described the invention what is claimed is L 1, ln a pump, the combination with a well casing, of duid elevating means arranged therein including an operating shaft, a Sleeve threaded into the lower end of said casingand havin an inwardly projpcting 4annular flange an longitudinal slots 1n the inner walls of the sleeve, and a terminal bearmg for the lower end of said shaftconvnected to the shaft for removal therewith "from the well casing, said bearing being provided with lugs to be received in the slots of said sleeve'and adapted to rest upon the dange thereof..

' In. a pump, the combination with a well casing, of Huid 'elevating means arranged in said casing including an Voperating shaft,- a terminal bearing vfor the lowerend of said shaft provided with lugs, means for removably connecting the bearing to the shaft but permitting of the rotation of said shaft, and' means arranged in the wellcasing for engagement by the lugs on said bearing lto hold the bearing against rotation.

3. In a pump, the combination witha well casinygwpf, duid elevating means arranged therein including an operating shaft, and a l concavo-convex spiral blade arranged V0n said shaft and spaced at its edges from the wall of the .well casing, the edges of said blade being inwardly and upwardly curved .to direct the fluid away from the walls of the well casing.

4. In' a pump, the combination with a well casing, of Huid elevating means arranged Atherein including an operating shaft, a plurality of spaced spiral blades arranged on said shaft, a plurality of radially disposed arms on the shaft between said spaced blades, plates mounted upon the ends of said arms and radially movable with respect to the shaft, and yieldable means mounted upon said plates to frictionally engage the wall of the well casing to' maintain the edges of the spiral blades in spaced relation thereto.

5. Ina ump,the combination with a well casin o fluid elevating means arranged thereln including an operating shaft, spaced spiral blades arranged on said shaft, a plurality of radially disposed tubular arms mounted upon the shaft between said spaced blades, and means movably mounted in said tubular arms including yieldable elements to frictionally engage the wall of the well casf ing and maintain the edges of the spiral ledges of the spiral blades 1n spaced relation' thereto.

in testimony whereof l". hereunto aiiix my signature in the presence of two witnesses.

GEORGE C. RICHARDS. Witnesses:

Unas. A, RICE, HOWARD J. PEmsoL.-

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