US484139A - August d - Google Patents

Description

- 2 Sheets-Sheet 1. A. D. 000K. PUMP (No Model.)

faQ/Q' (No Model.) Sheets-Sheet 2.

A.D.GO0K.

PUMP. Y y No. 484,139. Patented Oct. 11, 1892.

- the jointis formed. Fig. 2 is a side elevation UNITED STATES PATENT OFFICE.

AUGUST D. COOK, OF LAWRENCEBURG, INDIANA.

PUMP.-

SPECIFICATION fotl'niltlgl part Of Letters :Patent No. 484,139, dated October 11,1892.

Application tiled May 23,1892, ySerial No. 434,007. (No model.)

`To all whom t may concern.-

Beit known that I, AUGUST D. 000K, a citizen of the United States, residing at Lawrenceburg, in the county of Dearborn and State of Indiana, have invented a new and useful Pump, of which the following is a specification.

My invention relates to improvements in -pumps of that class employing sunken pipes; IO

and the objects in view are to provide an improved joint between the working barrel or vcylinder and the pipe; furthermore, to so locate the said joint as to prevent the admisbe particularly pointed out in the claims.

Referring to the drawings, Figure 1 is a vertical longitudinal section through that portion of the pipe and working barrel at which of the pump. Fig. 3 is a transverse section on a line immediately above the coupling.

Fig. 4 is a detail in perspective of one of the Like numerals of reference indicate like` coupling is provided with a pair of vertical' perforations 5, and in the same ride the oppoposite twin stems 6, which are attached to a conical valve-plug 7. The valve-plug 7 is adapted to normally be seated upon acountersunk valve-seat 8, located at opposite sides of the coupling and in the upper edge thereof and formed at the upper ends of L-shaped ports or escapes 9. It will be seen that the lower ends of thevalve-stems extend belowthe object and purpose of the same will hereinafter appear.

10 designates a brass tube, which from a point above its lower end is provided with an annular series of slits, formingtongues 1l. Encircling this tube is a rubber sleeve l2, which is provided at its upper end with an external boss 13, integrally formed therewith. .This boss has an annular recess or slit extending from its lower edge to. a point above its middle and receives the upper end of a second outer tube 14, which encircles the rubber sleeve and inner tube and, like the inner tube, has its upper end slitted at intervals to form a series of spring-tongues 15. The two tubes and the rubber sleeve as thus assembled are inserted lower end first into the upper end of the Working barrel, and after being pushed down sufliciently far to permit only the annular rubber boss to extend above the Working barrel the two tubes and said barrel are securely soldered together or may be otherwise fastened, if desired. j

16 designates the pump-rod 0r plunger, and the same is provided at its lower end with an vordinary upwardly-opening valved plungerhead 18. Above the head and near the center of the rod an annular shoulder 19 is formed, and at the upper end of the plungerrod the same is threaded, as at 20, to receive a coupling 21, which forms a means of connection between the pump or plunger rod and the usual sucker rod or poles. The coupling mentioned is provided at its center with a squared wrench-receiving surface 21, above the same with a threaded tenon 22 to receive the socket at the lower end of the sucker rod or poles, and at its lower end with athreaded socket 23, which removably receives the upper end of the pump or plunger rod.

24 designates a conical plug or spreader, and the same is provided with a central longitudinal bore 25, reduced at its upper end by a spider-frame 26, through the central opening of which the pump-rod passes. The external form of the spreader or plug is conical, the same being gradually Vreduced from its upper end to a point near its lower, as in vlower end of the coupling or union, and the IOO dicated at 27, and immediatelybelow the same left plain or cylindrical, as at 28.

In assembling the parts the pump-rod and itsI plunger-head are lowered into the barrel, after which the upper section of the working barrel is-connected to the lower section by the before-described union or coupling. The tapered plug is now mounted over the upper end of the pump-rod and the lower end of the plug pressed into the slitted tube. The whole is now lowered into the well-tube 30, and in order to effect a tight joint between thc upper end of the working barrel and the said tube it is simply necessary to raise and let fall the sucker and pump rod or lower the same and drive it from the upper end. In either case the impact serves to force the tapered plug within the upper ends of the slittedA rubber-bound tubes and they are caused to expand and a tight joint is effected between the rubber boss formed on the sleeve and the inner surface of the well tube or pipe.

It will be seen that by locating the joint at the upper end ofthe working barrel sand and grit will be prevented from working into the space between the working barrel and wellpipe, and hence offering great obstruction to any attempt at withdrawing the working barrel from the well-pipe.

Having now described the manner of forming the joint, I will proceed to describe the manner of loosening the same or unlocking the working barrel from the well-pipe. In this operation the pump-rod is elevated, so that its annular shoulder will come in contact with the spider of the spreading-plug and by its impact will elevate the plug sufti ciently to partly withdraw it and so as to relieve the spreading tubes of its iniiuence. By the time that the spreading-plug has been partially withdrawn the plunger-head comes in contact with the lower ends of the valve-stems mounted on the coupling, and, elevating them, raises the valve-plugs from the seats, permitting the head of water above the valve-seats to be reduced by passing out through the escape-ports and into the space between the working barrel and the well-pipe. The object of providing for this escape of water is to avoid the pressure of the same tending to spread the tubes after the plug has been withdrawn and to permit said tubes to instantly contract and release or destroy thejoint formed between the same and the Well-pipe. As soon as the tubes have contracted and the joint destroyed a farther upward movement of the pump-rod will by reason of the plunger contacting with the under side of the coupling elevate the entire Working barrel, valves, 'spreaders, and pum p-rod at one and the same time.

I do not herein limit my invention to the exact manner herein shown and described for effecting the joint between the working barrel and the well-pipe, but hold that I may vary the same in any manner and to any extent within the skill of those conversant with the art.

Having described my invention, what I claim is- .1. In a pump, the combination, with the well-pipe, a working barrel, andan expansible and contractible joint located in the upper end of the barrel, of a pump-rod, an expanding'device mounted on the rod, and escape-ports for easing the head of water above the plunger of the rod, substantially as specified.

2. In a pump, the combination, with the well-pipe, a working barrel, and an expansible and contractible joint located in the upper end of the barrel, of a pump-rod,an expanding device mounted on the rod, a plunger at the lower end of the rod, escape-ports located in the working barrel, valves for closing the same, and stems extending from the valves into the path of and adapted to be struck by the plunger, substantially as specitied.

3. In a pump, the combination, with the well-pipe and the working barrel located therein, of a tube inserted in the working barrel and longitudinally slitted to form springtongues a packing-sleeve about the tube and having its upper end enlarged and overlapping the upper end of the tube and taking between the tube and pipe, a pump-rod, and a conical plug, through which the rod passes,

inserted in the tube and adapted to be driven therein for spreading the same, substantially as specified.

4t. In a pump, the combination, with the well-pipe and the pump-barrel, of a slittedtube having a series of spring-tongues and provided with an external packing-ring the upper end of which overlaps the upper end of the tube and terminates between it and the pipe, a pump-rod mounted loosely in the working barrel and provided with shoulders arranged some distance apart, and a conical plug mounted on the rod between the shoulders, adapted to be struck thereby and inserted into the upper end of the slitted tube, substantially as specified.

5. In a pump, the combination, with the well-pi pe, the workin g barrel, the pair of slitted tubes arranged one within the other and both located in the upper end of the Working barrel, and the rubber sleeve encircling the inner tube and located within the outer one and having its upper end provided with an external enlargement or packing-ring slitted at its lower edge to receive the upper end of the external tube, of the pump-rod provided with the upper and lower shoulders and the conical spreading-plug having the hollow bore and provided at its upper end with a spider provided with a central opening for the pumprod and located upon the latter between its shoulders, substantially as specified.

G. In a pump, the combination, with the well-pipe, the cylinder-sections interiorly threaded` the intermediate exteriorly-threaded coupling having the opposite pairs of IOO IIO

guide-perforations, andv intermediate valve-V ro the former adapted to contact with the valvestelns and the latter with a conical plug located on the rod and adapted to spread the said joint, substantially as specified.

In testimony that I claim the foregoing as my own I have `hereto affixed my signature in r 5 the presence of two Witnesses.

- AUGUST D. COOK. Witnesses:

JNO. H. SIGGERS, W. S. DUVALL.

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