US1208038A - Deep-well pump. - Google Patents

Description

J. B. SPEHRY.

DEEP WELL PUMP.

APPLlcAnoN msn ocr. 12. 1912.

Lw. Patented 1160.12, 1916.

4 SHEETSSHEET I.

J. B. SPERRY.

DEEP WELL PUMP.

APPucATloN msn ocT. 12, 1912.

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J. B. SPERRY.

DEEP WELL PUMP.

APPLICATION FILED ocr. I2. I9I2.

LQS. Patented Dec. l2, 1916.

4 SHEETS-SHEET 3.

J. B. SPERRY.

DEEP WELL PUMP.

APPucAnoN FILED ocT.12. 19|2.

Patented Dec. 12,1916.

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JOHN B. SPERRY, 0F AURORA, ILLINOIS, ASSIGNOR IO THE AMERICAN WELL WORKS.. OF AURORA, ILLINOIS, A CORPORATION OF ILLINOIS.

DEEP-WELL PUMP.

Application led October 12, 1912.

To all whom t may concern:

Be it known that I, JOI-IN B. SPERRY, a citizen of the United States, residing at Aurora, in the county of Cook, in the State of Illinois, have invented certain new and useful Improvements in Deep-Nell Pumps, of which the following is a specification, reference being had to the accompanying drawings.

My invention relates to pumps for lifting water from deep wells and has to do more particularly with double acting pumps in which there are a plurality of pistons or plungers arranged to be reciprocated by suitable mechanism located at or near the surface of the ground, such for example, as that shown and described in patent to Matthew T. and Mark C. Chapman, No. 677,438, dated July 2, 1901, although any other suitable mechanism for actuating the plungers may be employed.

The object of my present invention is to provide an improved construction by which the effective stroke of the plungers may be increased, and the capacity of the pump accordingly increased, without varying the operating stroke of the actuating mechanism by which the plungers are reciprocated. I accomplish this object as illustrated in the accompanying drawings and as hereinafter described.

IVhat I regard as new is set forth in the claims.

In the accompanying drawings, Figui-e i is a vertical sectional view of the upper portion of a well tube equipped with my improved pumping apparatus ,'Fig. 2 is a similar view, being an extension downward of the parts shown in Fig. 1; Figs. and 4 are views corresponding with those shown in Figs. 1 and 2, but taken at right angles thereto; Fig. '5 is a cross section on line 5 5 of Fig. 1; Fig. 6 is a cross section on line 6 6 of Fig. 1; Fig. 7 is a cross section on line 7 7 of Fig. 2; Fig. 8 is a cross section on line 8 8 of Fig. 2; Fig. 9 1s a cross section on line 9 9 of Fig. 4; Fig. 10 is a sectional view showing a modified arrangement of the lower end portion of the pumping apparatus; Fig. 11 is a vertical sectional view showing a modiiied arrangement of the outer pump cylinder; and F 12 is a similar view, being an extension downward of Specification of Letters Patent.

Patented Dec. 12, 19163.

Serial No. 725,426.

the arrangement shown in Fig. 11, illustrating the valve mechanism and packing at the lower end of the pumping apparatus.

Referring to the drawings, in which corresponding parts are indicated by like refern ence characters, l3 indicates the well tube or casing which extends from the surface down into the well as far below the pumping apparatus as may be desired.

14 indicates an outer cylinder which, in the construction shown in Figs. 1 to 10, inclusive, is supported from its upper end and extends down into the well tube. Said cylinder is provided at its lower end with an extension 15 of somewhat less diameter, which is connected thereto by a screw coupling 16, as shown in Fig. 1. The extension cylinder 15 is preferably made of brass, but it may be made of any other suitable material.

17 indicates a tubular plunger which is adapted to reciprocate in the cylinder 15 and is provided with packing-rings 18, of leather or other suitable material, which are held in place and are expanded laterally by packing-rings 19, of brass or other suitable material. As shown in Fig. 1, the lower poi tion of the plunger 17 is expanded or enlarged to form a shoulder 20 on which the lowermost packing-ring 18 rests, and all the several packing rings are pressed together by a sleeve 21 and a ring 21a secured upon the upper portion of the plunger, as shown in Fig. 1. A sleeve 21 also serves as a means for connecting the plunger 17 with a suitable connection 22 by which said plunger is connected with a tubular plunger rod 23. The coupling 2i which is in the form of a spider, serves to connect the connection 22 with the plunger rod 23. Said plunger rod extends to the surface and is connected with the operating mechanism so that it may be reciprocated.

25 indicates an upwardly opening valve at the lower portion of the plunger 17', which is preferably ofthe type shown inpatentto It. E. L. VHolmes, 990,359dated April 25, 191,1, said valve being normally seated by a spring 26.

27 indicates a tubular plunger rod which extends up through the valve 25 and plunger 17 and is connected with a solid plunger rod 28 by means of a valved coupling 29, in the form of a cage which contains a ball-valve 30 adapted to seat upon the upper end of the plunger rod 27. Preferably a bushing 31 is provided between the plunger rod 27 and the coupling 29, said bushing serving also as a seatfor the valve 30.

32 indicates a stutling-box fitted around the plunger rod 27 below the valve 25, as shown in Fig. 1.

33 indicates an inner cylinder which is connected with the lower portionV of the plunger 17, preferably by screw threads as shown in Fig. 1, and eXtends down into the well preferably below the lowerl end of the cylinder 15.

34 indicates a second plunger which is connected with thelower end of the plunger rod 27, said plunger 34 being provided with a' centra-lv tube 35 which screws upon the lower end of the plunger rod 27, as shown in Fig. 2.

36-37 indicate leather and metal packing-rings mounted on the plunger 34.

38 indicates passages in the plunger 34 which connect the tube 35*with the interiorI of the cylinder 33 below the plunger 34.

39 indicates a pipe which extends downward from the lower end of the plunger 34, as shown in Fig. 2. Said pipe communicates by passages 40, as best shown in Fig. 4with the interior of the plunger around the pipe 35, which space is indicated by 41 in Fig. 2. The construction of the plunger 34 is substantially the same as that shown in the Holmes patent hereinbefore referred to.

42 indicates a Lcoupling secured in the lower end of the cylinder 33, said coupling` having passages 43 through which water may flow from the interior of the cylinder 13 into the lower portion of the cylinder 33.

44 indicates an upwardly opening valve which normally closes said openings, said valve being seated by a spring 45 and `being held in place by a cage 46.

47 indicates a stufling-boX carried by the coupling 42 around the lower portion of the tube 39, as shown in Fig. 2.

48 indicates a cylinder which is connected with the lower portion of the coupling 42, below the passages 43, and extends down into the well.

' 49 indicates a third plunger which is adapted to reciprocate in the cylinder 48, and is also provided with suitable packing rings as in the case of the upper plungers. Said plunger is tubular and is connected by a coupling 5() with the lower end portion of the tube 39. Said coupling carries a valvecage 51 in which is carried a spherical valve 52 adapted to seat in the upper end of the plunger 49, as shown in Fig. 2.

, rI'he plunger rods 23 and 28 are intended to be reciprocated simultaneously in opposite directions by means of the actuating mechanism at the surface. It follows, therefore, that when the plunger rod 23 is moved down, as the cylinder 33 is connected with the plunger 17, said cylinder will be moved down at the Same time. Furthermore, as the cylinder 48 is connected with the cylinder 33 through the coupling 42 the cylinder 48 will also be moved down. At the same time the piston rod 28 being moved up will carry up with it the plunger 34, and the latter being connected with the plunger 49 will move that plunger up also. Opposite movement of the two plunger rods will effect opposite movements of the parts connected with them. The result of these movements is to increase the effective stroke of the several plungers and thereby increase the volume of water discharged. For example, when the plunger rod 23 moves upward and the plunger rod 28 moves downward the plunger 34 will approach the valve 44, in the lower portion of the cylinder 33, twice as fast as if the cylinder 33 were stationary. rhe upward movement of the cylinder acts to lift the water above the valve 44 through -the passages 38 and tubes and 27 into the upper portion of the cylinder 22 and through it into the outer cylinder 14 from which it is lifted by the plunger 17. At the same time downward movement of the plunger rod 28 and the parts connected with it causes water to fiow up through plunger 49 into the cylinder 48 and up through the tube 39 and plunger 34 into the upper portion of the cylinder 33 and thence up through valve 25 and plunger 17 and connecting cylinder 22 into the outer cylinder 14. Upward movement of the plunger rod 28 lifts plungers 49 and 34, and, as at the same time the downward movement of the plunger rod 23 carries the cylinders 33 and 48 down, the plunger 34 will move away from the valve 44 twice as fast as if either of the parts were stationary and will suck water up through the passages 43 into the lower portion of the cylinder 33, whence it will pass through passages 38 and tubes 35 and 27 into connecting cylinder 22 and into the outer cylinder 14. Furthermore the plunger 49 will approach the closed upper end of the cylinder 48 twice as fast, thereby forcing the water in said cylinder out through the tube 39. At the same time the plunger 17 will be moving down to meet the plunger 34, in preparation for its neXt lifting stroke, thereby doubling the volume of water which Hows up through valve 25.

The practical effect of the pump in operation is as follows, assuming the pump to be full of water: lhen the pump rod 23 and the cylinder 33 are moved downward, the plunger 34 moves upward, and consequently said plunger, and the valve 44 car ried by the cylinder 33, move away from each other by a distance equal to twice the stroke of either of said parts. Assuming 1,208,038 Vit,

the stroke to be three feet, it follows that the plunger 34 and the valve 44 will have been moved apart six feet. In this movement, water will have entered the cylinder 33,.through passages 43, lling the six feet of space in said cylinder thus provided.

i" While the plunger 34 has been rising the distance of three feet, and the cylinder 33 has beendescending the same distance, six feet of water will have been -forced up through the valve 25, but only three feet of the water will have been discharged, as the valve` 25 will have been moved down three feet, thereby making an actual lift of only three feet of water by these parts. The amount of water discharged, however, will have been increased by the, action of the plunger 49 and the check valve 52, in thecylinder 48, since said plunger 49 will have been moved up three feet, while the cylinder 48 will have been moved ldown three feet, thus forcing six feet of water up through the tube 39 to the surface of the ground. Assuming three feet of water to be a unit, it will be apparent, therefore, that by this action three units of water will have been discharged. Opposite movement of said parts also acts to discharge three units of water in the following manner: When the cylinder 33 moves upward, and the plunger 34 moves downward, the six feet of water between the plunger 34 and the valve 44 is forced up through passages 38 and discharged above the valve 30, at the upper end of the tube 27. At the same time the cylinder 33 will have risen three feet, thus discharging one unit of water lying above the valve 25. The pump thus discharges three units of water on each stroke.

In the construction shown in Fig. 10 I have. illustrated a modification in which the lowermost plunger 49 is omitted. In view' of the omission of the lowermost plunger the cylinder 48 is also omitted and I employ a head 53 which is substantially the same as the coupling 42, but is slightly modified so as to adapt it to lit more closely into the lower end -of the cylinder 33. With this construction a check valve similar to the valve 25 is provided above the plunger 34 to prevent downward flow of water through said plunger. TWith this modified construction the volume of water pumped is approximately four times as great as in a single acting pump of like character.

It will be noted that the weight of the column of water being lifted is sustained by the pump rod 23 and cylinder 14. As it is sometimes desirable to relieve these parts of such weight I may employ a cylinder 54 which is substantially the same as the cylinder 15 except that it is preferably fiar-ed at the top and is provided with a downward extension 55 which carries at its lower end a conical sleeve 56, shown in Fig. l2. Said sleeve fits into a conical packing sleeve 57 which fits into a conical sleeve 58, carrying wedges 59 adapted to engage the well tube 13 and be held in place therein by wedging contact. This supporting device is shown and described in patent to Chapman and Chapman, No. 677,438, hereinbefore referred to. The packing sleeve 57 tightly closes the space between the lower end of the cylinder 55 and the well tube.

60 indicates a valve-cage in the tapered sleeve 56, said valve-cage having a spherical valve 6l which opens upwardly and forms a check-valve to permit r'upward iiow of water, but prevent downward flow thereof. By this construction when the pump is full of water the weight of the column is sustained by the foundation or support 58.

I/Vhat I claim as my invention and desire to secure by Letters Patent isl. A pump comprising a plurality of pump rods adapted to be reciprocated simultaneously in opposite directions, a cylinder connected with one of said pump rods and movable therewith, a check valve in the lower portion of said cylinder, a plunger connected with the other pump rod and adapted to operate in said cylinder above said check valve, and passages through said plunger, one of said passages communieating with said cylinder above the check valve therein, and the other with the well below said check valve.

2. pump comprising a plurality of pump rods adapted to be reciprocated simultaneously in opposite directions, a cylinder connected with one of said pump rods .and movable therewith, a check valve in the lower portion of said cylinder', a plunger connected with the latter pump rod, a cylinder in which the said plunger operates, a plunger connected with the other pump rod and adapted to operate in said first mentioned cylinder, and passages through the latter plunger, one of said passages communicating with said movable cylinder above the check valve therein, and the other with the well below said check valve.

3. A pump comprising a plurality of pump rods adapted to be reciprocated simultaneously in opposite directions, a stationary cylinder, a plunger carried by one of said pump rods and operating in said stationary cylinder, a cylinder connected with the latter pump rod and adapted to move therewith, a check valve in the lower portion of said movable cylinder, a. plunger connected with the other pump rod and adapted to reciprocate in the latter cylinder, passages through said plunger, one of said passages communicating with said movable cylinder above the check valve, and the other with the well below said check valve, and means for'sup-plying water to the latter passage on the down stroke of the latter pumprod. Y

4. A pump comprising a plurality of pump rods adapted to be reciprocated simultaneously in opposite directions, a stationary cylinder, a plunger connected with one of said pump rods and adapted to operate in said stationary cylinder, a plurality of movable cylinders connected with the latter pump rod, and a plurality ot plungers connected with the other pump rod and adapted to operate in said movable cylinders.

5. A pump comprising a plurality of pump rods adapted to be reciprocated simultaneously in opposite directions, a plurality of cylinders connected with one of said pump rods and movable therewith. and a plurality of pistons connected with the other pump rod .and operating in said cylinders.

6. A pump comprising a plurality oi' pump rods adapted to be reciprccated simultaneously in opposite directions, a cylinder connected with one of said pump rods and movable therewith, said cylinder communicating at its lo-wer end portion with the well, an upwardly opening valve at the lower `portion of said cylinder, a plunger connected with the other pump rod `and operating in said cylinder and means operating onthe down strolre of said plunger, for conducting water from below said valve to said cylinder above said plunger.

7. A pump comprising a plurality of pump rods adapted to be reciprocated simultaneously in opposite directions, an upper cylinder connected with one of said pump rods and movable therewith, said cylinder communicating at its lower end portion with the well, an upwardly opening valve at the lower end portion of said cylinder, a lower cylinder connected with the latter pump rod .and reciprocating therewith, and plungers connected with the other pump rod and reciprocating insaid cylinders.

8. A pump comprising a plurality of pump rods adapted to be reciprocated simultaneously in opposite directions, a stationary cylinder, a plunger carried by one of said pump rods and adapted to reciprocate in said stationary cylinder, a movable cylinder connected with the latter pump rod, said movable cylinder communicating at its lower end portion with the well tube, an upwardly opening valve in the lower portion of the movable cylinder, `and a plunger carried by the other pump rod and operating in said movable cylinder, the latter plunger having passages communicating' respectively with said movable cylinder above the check valve therein and with the well below said check valve.

9. A pump comprising a plurality of pump rods adapted to be reciprocated simultaneously in opposite directions, a stationary cylinder, a plunger carried by one of said pump rods and operating in said stationary cylinder, a movable cylinder carried by the latter pump rod and communicating at its lower end portion. with the well, the latter cylinder having an upwardly opening valve, a movable cylinder below the said first movable cylinder and moving therewith, and plungers carried by the other pump rod and operating in said movable cylinders.

l0. A pump comprising inner and outer pump rods adapted to be reciprocated simultaneously in opposite directions, a stationary cylinder, a plunger carried by said outer pump rod and adapted to reciprocate in said stationary cylinder, a movable cylinder connected to said plunger, and reciprocating therewith, a check valve in the lower portion of said movable cylinder, a tube connected with said inner pump rod and extending down through said plunger, and a plunger carried by said tube and reciprocating in said movable cylinder, the latter plunger having` passages communicating respectively with said movable cylinder and with the well below said check valve.

ll. A pump comprising inner and outer pump rods adapted to be reciprocated simultaneously in opposite directions, a stationary cylinder, a plunger carried by said outer pump rod and adapted to reciprocate in said stationary cylinder, a movable cylinder connected to the outer pump rod, and reciprocating therewith, a tube connected with said inner pump rod and extending down through said plunger, a plunger carried by said tube and reciprocating in said movable cylinder, an upwardly opening check-valve in the lower portion of said movable cylinder, said tube communicating with the interior of said cylinder below the plunger therein and above said checlvvalve.

l2. A pump comprising inner and outer pump rods adapted to be reciprocated sin'iultaneously in opposite directions, a stationary cylinder, a plunger carried by said outer pump rod and adapted to reciprocate in said stationary cylinder, a movable cylinder connected to the outer pump rod, and reciprocating therewith, a tube connected with said inner pump rod and extending down through said plunger, a plunger carried by said tube and reciprocating in said movable cylinder, an upwardly opening check-valve in the lower portion of said movable cylinder, said tube communicating with the interior of said cylinder below the plunger therein and above said check-valve, a second movable cylinder below said first movable cylinder and movable therewith, a plunger in said second movable cylinder, said plunger being connected with the plunger in the first movable cylinder, and means for conducting water from the second movable cylinder into the first movable cylinder above the plunger therein.

I", u u

13. A pump comprising a plurality of pump rods adapated to be reciprocated simultaneously in opposite directions, a well tube, a stationary cylinder in the well tube, means at the lower end of said stationary cylinder for supporting the same in the well tube, a plunger carried by one of said pump rods and adapted to reciprocate in said stationary cylinder, a plurality of movable cylinders connected with the latter pump rod, and a plurality of plungers connected with the other pump rod and adapted to reciprocate in said movable cylinders, respectively.

14. A pump comprising a plurality of pump rods adapted to be reciprocated simultaneously in opposite directions, a well tube, a stationary cylinder in the well tube, means at the lower end of said stationary cylinder for supporting the same in the well tube, an upwardly opening valve at the lower end portion of said stationary cylinder, a plunger carried by one of said pump rods and adapted to reciprocate in said stationary cylinder, a plurality of movable cylinders connected with the latter pump rod, and a plurality of plungers connected with the other pump rod and adapted to reciprocate in said movable cylinders.

15. The combination with a well casing of a pump comprising a plurality of moving cylinders, in said well casing means for moving said cylinders simultaneously in the same direction, a plurality of pistons adapted to operate in said cylinders, and means for moving said pistons in the same direction but oppositely to the direction of movement of said cylinders.

16. A pump comprising a plurality of pump rods adapted to be reciprocated simultaneously in opposite directions, one of said rods being connected to a plurality of plungers, and the other being connected to a plurality of cylinders for pumping purposes.

17. A pump comprising` a plurality of pump rods adapted to be reciprocated simultaneously in opposite directions, a plurality of plungers connected with one of said rods, a plurality of cylinders connected with the other rod, and a stationary cylinder in which one of said reciprocating cylinders moves.

18. The combination with a well casing, of a pump comprising a plurality of moving cylinders, in said well casing means for moving said cylinders simultaneously in the same direction, a plurality of pistons adapted to operate in said cylinders, means for moving said pistons in the same direction fbut oppositely to the direction of movement of said cylinders, and means for conducting water Jfrom the lower cylinder through the upper cylinder.

19 The `combination with a Well casing,

of a pump comprising a plurality of moving cylinders, in said well casing means for moving said cylinders simultaneously in the same direction, a plurality of pistons adapted to operate 1n said cylinders, means for moving said pistons in the same direction but oppositely to the direction of movement olf said cylinders, means tor conducting water from the lower cylinder through the upper cylinder, and means for admitting vater from the well directly to the upper cylinder.

20. A pump comprising a plurality of pump rods adapted to be reciprocated simultaneously in opposite directions, one of said rods being connected to a plurality of plungers and the other being connected to a plurality of chambers in which said plunger operates for pumping purposes, a plunger connected with the latter pump-rod, and a cylinder in which the latter plunger operates.

Q1. A pump comprising a plurality of pump rods adapted to be reciprocated simultaneously in opposite directions, a waterliliting cylinder connected with one olsaid pump rods and movable therewith, a plunger connected with the latter pump rod, a cylinder in which the said plunger operates, and a plungerI connected with the other pump rod and adapted to operate in said iirst mentioned cylinder the latter plunger having a plurality of passages therethrough.

22. A pump comprising a plurality oi pump rods adapted to be reciprocated simultaneously in opposite directions, a station- .ary cylinder, a plunger carried by one of said pump rods and operating in said stationary cylinder, a water-lifting cylinder connected with the latter pump rod and adapted to move therewith, and a plungerl connected with the other pump rod and adapted to reciprocate in the latter cylinder the latter plunger having a plurality of passages therethrough.

23. A pump comprising a plurality of pump rods adapted to be reciprocated simultaneously in opposite directions, a stationary cylinder, a plunger carried by one of' said pump rods and adapted to reciprocate in said stationary cylinder, a movable cylinder connected with the latter pump rod, said movable cylinder communicating at its lower end portion with the well tube, an upwardly opening valve in the lower portion of the movable cylinder, and a plunger carried by the other pump rod and operating in said movable cylinder.

24. A pump comprising inner and outer pump rods adapted to be reciprocated simultaneously in opposite directions, a stationary cylinder, a plunger carried by said outer pump rod and adapted to reciprocate in said stationary cylinder, a movable cylin- .der connected to the outer pump rod; and

reciprocating therewith, a tube connected with said inner pump rod and extending down through said plunger, and a plunger carried by said tube and reciprocating in said movable cylinder.

25. A pump comprising a plurality of pump rods adapted to be reciprocated simultaneously in opposite directions, a well tube, a stationary cylinder in the well tube, means at the lower end of said stationary cylinder for supporting the same in the well tube, a plunger carried by one of said pump rods and adapted ot reciprocate in said stationary cylinder, a movable cylinder connected with the latter pump rod, and a plunger connected with the other pump rod and adapted to reciprocate in said movable cylinder.

26. A pump comprising a plurality of pump rods adapted to be reciprocated simultaneously in opposite directions, a well tube, a stationary cylinder in the Well tube, means at the lower end of said stationary cylinder for supporting the same in the well tube, an upwardly opening valveV at the lower end portion of said stationary cylinder, a plunger carried by one of said pump rods and adapted to reciprocate in said stationary cylinder, a movable cylinder connected with the latter pump rod, and a plunger connected with the other pump rod and adapted to reciprocate in said movable cylinder.

27. A pump comprising a plurality of pump rods, a plurality of plungers connected with one of said pump rods, a plurality of cylinders connected With the other pump rod, a stationary cylinder in which one of said cylinders moves, said stationary cylin Genies of this patent may' be obtained for a plunger operating in said stationary cylinder.

28. A pump, .comprising a plurality ot connected aXially-alined moving cylinders, means for moving said cylinders simultaneously in the same direction, a plurality of connected aXially-alined pistons adapted to operate in said cylinders respectively, and means for moving said pistons in the same direction but oppositely to the direction of movement oi said cylinders.

29. A pump, comprising a plurality of connected axially-alined moving cylinders, means for moving said cylinders simultaneously in the same direction, a plurality of connected aXially-alined pistons adapted to operate in said cylinders respectively, means for moving said pistons in the same direction but oppositely to the direction of movement of said cylinders, and means for conducting water from the lower cylinder through the upper cylinder.

30. A pump, comprising a plurality of connected axially-aimed moving cylinders, means for moving said cylinders simultaneously in the same direction, a plurality of connected axially-aimed pistons adapted to operate in said cylinders respectively, means for moving said pistons in the same direction but oppositcly to the direction of movement of said cylinders, means `tor conducting water from the lower cylinder through the upper cylinder, and means for admitting water from the well directly to the upper cylinder.

JOHN B. SPERRY. Witnesses:

M. L. CHAPMAN, GEO. W. Iso.

ive cents each, by addressing the Commissioner of Patents Washington. D. G.

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