US872326A - Deep-well pump. - Google Patents

Description

PATENTED DEG. 3, 1907. H. A. BRISCO & C. J. ERICKSON.

I DEEP WELL PUMP APPLICATION FILED DEO. 2B. 1906.

`or ot`her liquid will be elevated UNITED' sTATEs PATENT oEEroE.

HYLTON A. BRISCO AND. CHARLES J. ERICKSON, OF SAN FRANCISCO, CALIFORNIA.

DEEP-WELL PUMP.

Specification of Letters Patent.

Application filed December 28, 1906. Serial No. 349,813.

Patented Dec. 3, 1907.

To all whom it may concern:

, l Be it known that we, II. A. Brusco and C. J. ERICKSON, citizens of the United States, residing at San Francisco, in the county of San Francisco and State of California, have invented new and useful Improvements in Deep-Well Pumps, of which the following is a specification.

This invention relates to a deepv well pump, the object of' the'invention being to provide a double acting pump of such construction that the greatest quantity of water at each complete strolre of the pump.

An important feature of this invention is that inV connection therewith only a single plunger rod is used while heretofore for double acting pumps two such plunger rods have been ordinarily used. This improvement simplifies the construction and reduces the expense of manufacturing and installing the pump.

A further important improvement is that the cylinder used for the pump is so constructed as to permit of the greatest possible diameter of cylinder being introduced into a well of given size; moreover the construction of the cylinder is simple and cheap.

A further important'feature is that with this construction there is no space for water to remain motionless or any sand or other solid material to accumulate.

A further object of the invention is to provide a pump, the whole of the working parts of which can be withdrawn from the well by drawing up the plunger rod.

In the accompanying drawing, Figure 1 is a vertical section of the pump; Figs. 2, 3, 4, and 5 are horizontal sections of Fig. 1 on the line 2-.-2, 3-3, 4-1-4, and 5 5 respectively, the last named figure showing half of the cylinder;

Referring to the drawing, 1 represents the discharging pipe, the lower end of which is screwed into a casting 2 forming the upper head ofthe outer cylinder 3, which is screwed at the top upon the outside of said head, and in like manner the lower end of the cylinder is screwed on the outside of the lower head 4 thereof.

5 indicates a cage which rests with a taper fit within the upper head 2. Upon a valve seat at the upper end of said cage rests an andepressed by a coiled spring 14, supported by l said stuffing box 12. To the lower end of said plunger rod 13 is screwed a plunger 16, a nut 17 being screwed upon the extreme end of the rod, said plunger having passages 1S closed by an annular rubber valve 19, depressed by a coiled spring 20 su ported by a collar 21l on the rod 13. Said p unger reciprocates within the inner cylinder 22, which is supported by being screwed at its upper end to the lower end of the cage 5. Said inner cylinder 22 extends downwards and terminates at a suitable distance above the upper end of the lower head o r casting 4, to permit of the water freely passing therebetween. The annular space 23 between said inner and outer cylinders forms the upward force conduit up which the water is forced on the down stroke of the piston. Said water thus forced upwards in this annular space passes through openings 24 formed in the upper head, with which openings register ports 25 formed in the cage 5. It is these ports 25 that are closed by the valve 6.

, Vithin the lower end of the plunger 16 is secured a suction tube 29, which moves within a tubular guide 3() provided with a stuliing box 31, said guide forming the central part of a spider 32, seated within the lower head 4. Screwed upon the lower portion of said spider is an induction pipe 33. Closing the passages 34 through the spider is a rubber valve 35 de resscd by a coiled spring 36 supported by tlie lower edge of the stul'ling box 31. Upon the lower end of the suction tube is secured an annular shoe 37.

It will be seen that by drawing up the plunger rod, the whole of the working parts can be drawn out of the well casing. In such cases, first, the plunger which is attached to the plunger rod reaches the lower edge of the cage 6, so that said cage also ascends with the plunger rod. Therefore also the inner cylinder 22 also ascends. The suction tube 29, being secured to the plunger, also ascends, and the shoe 37 reaching the lower edge of the spider 31 carries with it the spider, and the induction tube 33 secured thereto. This enables all the working parts to be withdrawn from the cylinder for repairs vor other purposes.

The operation of the apparatus is as follows :-When the plunger descends, it forces the water down through the space below the edge oi the inner cylinder and then up in the annular space 23 between the inner and outer cylinders and through the ports y25 into the discharge pipe, raising the valve 6, the valve 10 being at that time closed. Also upon said downward movement of the plunger, water is drawn into the interior of the cylinder 22 between the valves 19 and 10, the valve 19 being then openeds Upon the upward movement of the plunger, said valve 19 is immediatelyT closed and water is Jforced 'out from said interior of the cylinder 22 up past the valve 10 into the discharge pipe and at the same time a suction is created in the annular chamber 23 between the inner and outer cylinders on account of the upper valve `6 being closed, thus causing the lowest valve 35 to rise against its spring and admitting water to said annular chamber. Then upon the return movement of the piston the oper ation is repeated.l

lVe' claim 1. In a deep well pump, the combination of inner and outer cylinders, spaced from each other to form an annular uplift space,

the bottom of the inner cylinder being spaced from the outer-cylinder to permit the water to pass around said bottom into said annular space, a hollow plunger sliding in the inner cylinder and carrying in its lower end a suction tube, a valve closing the upper end of said plunger, a second valve spaced above the first valve, a guideway for said suction tube having a port, a valve closing said port, a guideway for the plunger rod having a port leading from the annular space between the cylinders, a valve closing said latter port, said guideway having an upward extension with an inwardly extending flange, and a coiled spring abutting against said iiange and depressing the valve, substantially as described.

2. ln a deep well pump, the combination of outer and inner cylinders, a port leading upwards from the annular space between the outer and inner cylinders, a valve seated on said port to close the same, a hollow plunger reciprocating in the inner cylinder, said plunger carrying a suction tube and having at the top a port, a valve seated on said p ort to close the same, the bottom oi the inner cylinder being spaced from the outer cylinder to form a passageway for the Water to pass into the annular space between the two cylinders, a guideway for the suction tube carried by the plunger, said guideway'havinga port, a valve closing said port, a guideway `for the plunger rod above the plunger, said guideway having a port and a valve seated on and closing said port, substantially as described.

3. In a deep well pump, the combination, with an outer casing, of an inner casing, a plunger reciprocating therein, a suction tube carried thereby, said inner casing plunger and suction tube dividing the interior of theY outer casing into two chambers, a` valve for each chamber arranged to open automatic'- ally by the pressure of the liquid upon the downward movement 'of the plunger to permit liquid to pass upwards in said chamber and to close automatically upon the returnmovement oi the plunger, and a valve for each chamber, arranged to open automatically by the pressure of the liquid upon the upward movement of the plunger to permit the liquid to pass to one chamber, and to.

force it from the other, said valve being arranged to turn movement of the plunger, substantially as described.

4. 1n a deep well pump, the combination,

with an outer casing, of an inner casing, a

close automatically upon the re.

plunger reciprocating therein, a suction tube carried thereby, said inner casing plunger and suction tube dividing the interior of the outer casing into two chambers, a valve for each chamber arranged to open automatically by the pressure of the liquid upon the downward movement of the plunger to per-v mit liquid to pass upwards in said chamber and to close automatically upon the return movement of the plunger, and a valve for each chamber, arranged to open 'automatically by the pressure of the liquid upon the upward movement of the plunger to permit the liquid to pass to one chamber, and to force it from the other, said valve being ar-` ranged to close automatically upon the return movement of the plunger, and means carried by the plunger for raising with the plunger rod all of the said valves and the valve seats therefor, and the suction tube andinner casing, substantially as described.

5. In a deep well pump, the combination, with an outer casing, ci an inner casing, dividing the interior of the outer casingv into two chambers, an apertured plunger reciprocating within the inner casing, said aperture leading to the interior of said inner casing, a valve seat permitting the passage of liquidv from the annu-lar space between the inner and outer casings, a valve closing the aperture in the plunger and a valve closing the valve seat, both adapted to be opened when the plunger descends, valve seats through which the water passes from the interior oi the inner casing and to said annular chamber,

and valves on said valve seats adapted to be I opened automatically by the pressure of the water upon the upward movement of the Flungenand means carried by the `plunger or raising with the plunger rod all of the said valves and the valve seats therefor, and the suction tube and inner casing, substantially as described.

In testimony whereof we have hereunto set our hands in the presence of two subserb- 10 ing witnesses.

HYLTON A. BRISCO. CHARLES J. ERICKSON /Vitnesses:

FRANCIS M. WRIGHT, D. B. RICHARDS.

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