US942145A - Pump. - Google Patents

Description

U. P. PRESLAR.

PUMP.

APPLIoATIoN FILED SEPT. 9,1907.

Patented Dec. 7, 1909. Y

3 SHEETS-SHEET 1.

,.l. LI MEV, ,.,f/ V// C. F. PRESLAR.

PUMP.

APPLICATION FILED SEPT. 9,1907.

Patented Dec. 7, 1909.

3 SHEETS-SHEET 2.

G. F. PRESLAR.

PUMP.

APPLICATION FILED SEPT. 9,1907. 942,145. Patented Dec. 7, 1909. 3 sHB'BTs-sHBBT 3.

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ad :2 b, mit-725971" Jrzz'ejzfa? u CHARLES r. rmisma,

or Norswoon, omo.

PUMP.

I Specification of Letters Patent.

Patented Dec. 7, 1909.

Application iled September 9, 1907. Serial No. 391,948.

To allwhom it 'may concern:

Beit known that I, Cimnmis F. PREsLAn, a citizen of the United States, residing at Norwood, in the county of Hamilton and State of Ohio, have invented new and useful Improvements in Pumps, of which the following is a specification.

This invention relates to a fluid actuating' device for raising liquids from lower levels to higher ones or against pressure, the m0- tor fluid being a gas, such as compressed air, capable of producing pressure upon the fluid to be raised or made to flow. The operation of this device is obtained preferably by the use of compressed air, but any suitable fluid having properties to produce the pressure could be readily used. l

The object of this invention is to provide such simple apparatus as will perform the desired function of elevating a fluid or causing it to flow, against pressure when some motor fluid is used to develop the necessary power, and at the same time have such apparatus constructed so that the entire mechanism can be easily and quickly removed from its casing for the purpose of repairing or cleaning.

A further object of the invention is the elimination of the parts now used in apparatus of this type, especially in the number of casings.

When this device is used in deep well practice, one air compressor would be suflicient to operate several wells at different distances from the source 'of power. This plan of operation would be very advantageous in mountainous districts. Also `in this practice the liquid could be relayed, and the height of lift of any well could be divided into several lifts by placing liquid seals at different intervals according to the height the liquid is to be lifted.. By pumping in this manner lower pressure can be used to lift the liquid against amuch greater head than low pressure of theactuating fluid could possibly accomplish without the relay method, as the actual head may be exceedingly large in comparison with the actual pressure of the motor fluid.

My device is illustrated in the accompanying drawings, in Which:-

Figure 1, is an axial section of my device as applied to well practice, with the upper part of the device, discharge pipe and well casing broken away. Fig. 2, is a similar section of the upper part with part of the Referring to the drawings, A, is the outside casing of a driven well, and A1, is a strainer joined to A, in any convenient manner as by means of a coupling, a. An anchor, a1, comprising a hollow conical wedge, preferably steel, and slit at its top to facilitate expansion, is held in position by roughened, notched or threaded portions of its outside surface, said surface burying itself in the outside casing, A, and forming retention points. A hollow conical wedge, a2, is adapted to lit in the hollow conical wedge, a1, and is capable of forcing said wedge. out against the casing, A, when suitable orce is applied above; and when so forced causes said conical wedge, al, to bury its notches, threads or roughenedparts in the inner wall of casing, A.

Discharge pipe, B, and its lining, B1, preferably brass, which are concentric with casing, A, are held against gravity -by means of collar, b, which is threaded or otherwise fixed to B, and rests upon an annular packing ring, b1, preferably of soft rubber. This packing ring sustains the weight of discharge pipe, B, and the parts which itincloses. Said ring, b1, has such elasticity that the weight it sustains causes it to seat tightly against both A, and B, and affords a fluid tight joint between the casings, A,

and B. Said expanded annular ring rests on the collar, b2, which is not threaded to casing, B, but is loosely pierced by the same and rests on the peripheral edge f the conical wedge,-a2. Collar, b, and sleeve b2, have their contiguous surfaces, contacting with packing ring, b1, so shaped as to tend to force the packing firmly against the casings, A, and discharge pipe, B. Collar,- b3, is threaded or otherwise fixed to pipe,'B, and is contiguous to collar, b2, which rests upon it while the device is being lowered into position vand before b2, contacts with a2. The shoe, b4, is threaded to the extreme lower end of B, and embraces a conical shaped rcceptacle into which the extreme lower end of the tube, C, lits.

Tube, C, comprises a hollow tube termiiu the conical receptacle ot' shoe, 6*. lollar, c, rests upon the` annular llaiigc, c", ol' tube, C, with which it is concentric. Upon said collar, c, rests| cup leather, c, which .is held tightly in position by collar, 02, which lits tightly against a portion et said cup leather and has an aniiulail recess which tends to prevent the vertical portion of said cup leather lrom talling in toward tube, C, and thus destroy` i's function. Cup leather, o, rests uponcoliar (F, and collar, c,.has the same function hin combination with cup leather, c, as collar, c1'. had in combination with cup leather, r1.

'lhe extreme upper extremity of tube, C, allords a seat l'or the ball-valve, c, rlhis ball is loosely contiiied by a plurality t strips, d, formed iii the connecting member, l), and together constitute a cage.

lhe connecting member, l), is integral, 1s hollow, annular and iiitcriofiy threaded at each end, said ends are of slightly less diameter than the interior of the lining, B1,

and it has interior ai'clies, (Z3, adapted to suitably limit the icciprocation ofthe ball, di 'lhe lowci'- cud of the connection, D, is threaded to tube, (Land its upper end iS attached to C. in a similar manner. lts bottoni or extreme lower edge tits tightly against the top ot` collar, 04.

The tube, C1, is threaded at its upper eX- tremit'y to the inside of the hollow annular lower extremity of the bail, D1. The outside of' the lower portion of D1, fits slidably in, B1.' Interposed between the threaded ends of tube, C1, and held rigidly by the pressure"transmitted from the end ofthe connecting member D, and bail, D1, are cup leathers, c1," c", 'and collars cs and c1", which are similarly arranged and similar to cup leathers, c1 and c3, and collars, 02 and c4, respectively andy are functionally identical.

Tube, C1, at--its upper end aords a seat for ball-valve 011, which. is retained suliiciently for operation in cage, d2, which is similar to the lower cage previously described and is integral with the bail, D1, of the device g' said bail terminating at its upper end in a threaded cylindrical rod, facilitating the fastening of a hook or threaded coupling. The entire device is adapted to be contained in lining, B1, whose function is to facilitate removal by preventing rusting together of contiguous ferrie parts,

kand said lining extends just a little distance above the top of bail mechanism, D1. B, and B1, are cut through by one or more registering slots, o7, to alford a passage way for fluid.

The coupling, b5, connects, B, with sleeve, b, by means of threads (see Fig. 2). Said seals, b1, and f.

sleeve, Z1, lis loosely pierced by actuating natiug in a projecting annular. flange, .0", whose outside sui'tace is in the shape ot a 5 lrustum ot' a cone, adapted to seat tightly [luid pipes, ll, and E1, and is stidably connected to discharge pipe F, and restricts the amount of sliding ot' said casing. '.llie sleeve, b, also forms a support for packing ring, j', which is pierced by actuating tiuid pipes, E, and E', and upon which rests collar, f1, -which is threaded to discharge pipe, F, and tits slidably in casing, A.

'lhe weight of, F, is transmitted to packiiig ring, f, by collar, f1, said packing ring resting on sleeve, (1G. Collar, f1, and sleeve, b, have their surfaces, which are contiguous to packing rin, j', so shaped as to tend to force said packing ring, f, which is expanded laterally by the weight of discharge pipe F, against the casing, A, and discharge pipe, F, thus forming a lluid tight joint. Actuating tluid pipes, E, and E1, are threaded in eollar,'f`1. By means of packing rings, f,

and b', and contiguous parts, two seals in the easing, A, are formed and it is obvious that the ltuid within or without the chainber between the seals can only enter or escape from said chamber through the registering apertures of the pipe lining, B1.

The casing, A, is closed at the top by a head, as, attached in any convenient. manner as by coupler, a5.. Said head is pierced by pipes, E, and E1, around which are formed tluid tight junctions by ineans of stutting boxes, e, and el. Pipe, E, connects the top surface of the iiuid chamber between the seals to the actuating fluid supply and pipe, E1, also extending to the saine chamber and carries a pressure gage' (not shown) above.

Head, a3, is bored to lit discharge, F, closely and counter bored to receive the tubular projection of sleeve, a4. A plurality of bolts, a, pierce collar, a7, and sleeve, a4, and are threaded in head, a. Pipes, E, and E1, loosely pierce collar, a?. Nuts, a, are threaded to bolts, a6 `and are capable, when tightened, of forcing the tubular projections of sleeve, a1, down into the counter bore of the head, a3; said counter bore and said projection forming a stuiing box of which said projection is the gland.

Collar, a7, is threaded to discharge ipe, F, and by means of bolts, a, tends to orce and hold said pipe down in casing, A, which force transmitted by collars, f1 and b, to annular packing, f and b1, cause said packings to be compressed and lit tightly against easing, A, and discharge pipe, B, F, thus forminga fluid tight joint.

The operation of this device is as follows The fluid to be pumped, naturally flows from the strainer throu h tube, C unseats the ball valve, c, and ows out of apertures, bf, into the chamber formed by casing, A, and discharge pipe, B, and the After the said chamber is suitably filled the actuating fluid is allowed to enter pipe, E, and produce pressure upon the upper surface of the fluid to be pumped. Said fluid then, due to pressure, tends to flow back through aperture or apertures, b?, and the ball valve, c, seats automatically due to the pressure above it. After the seating of the said valve, c, the fluid rises through the tube C1, unseats valve, c, and flows toward the exit of thedischarge pipe. lfVhen the fluid contained in the chamber formed by the casings, A, and the discharge pipe, B, and the upper and lower seals has been forced suitably low in the said chamber by the pressure of the actuating fluid, the said actuating pressure is released through the pipe, E, by connections (not shown) of Isaid pipe. The ball-valve, 011, then seats automatically, due to the pressure of the fluid above it. The fluid in the strainer again begins its natural flow through tube, C, and the operation is repeated. The time allowed the actuating luid to act would be fixed and would depend upon the weight of the natural llow ofthe fluid to be pumped, and the different-.e between the natural pressure and actual head varies in dilferent plants of this type.

lVhat I claim as my invention and desire to secure by Let-ters Patent of the United States, is :f

1. Ina compressedatir elevator for liquids, a well-easing, an independent discharge pipe maintained axially therein and extending into the body of water to be lifted; annular packings with an interval between, seated on the periphery o'f the discharge pipe and expansible radially to seat against the inner wall of the casing to form beuids, a well casing adapted to be projected into the body of water to belifted; an inde,- pendent discharge pipe maintained axially within the easing approximately to the bot- `tom thereof; annular packings arranged with an interval between near the bottom of the discharge pipe and expansible radially to seat against the inner wall ofthe casing to form between the packings a closed annular chamber; and an open tube section removably seated in said discharge pipe, and

lprovided with diaphragm valve-seats at opposite sides of a radial opening between the 1nterior of the tube section between the valves into said annular chamber; lifting check valves seated on said diaphragm seats; and air-admission and exhaust pipes carried downward in the well casing outside of the discharge pipeinto the annular space between the packings.

In testimony whereof I have hereunto set my handl in presence of two subscribing witnesses. v

CHARLES F'. IRESLAR. Witnesses: v

WALTER A. KNIGHT, CARROLL H. RICHARDS.

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