US540834A - Pump-rod coupling - Google Patents

Description

(N6 Model.)

W. L. GUMM. PUMP ROD GOUPLING.

Miren Terres- 'PATENT Ormea.)

' VALLACE L. GUMM, OF VHITE OAKS, TERRITORY OF NEW MEXICO.

PU-Nl P-ROD COUPLING.

SPECIFICATION forming part of Letters Patent IVO. 540,934', dated June 11, 1895.

Application led April l1, 1894. Serial No. 507.163. (No model.) v

To all whom t may concern: f .Be it known that T, WALLACE L. GUMM, a citizen ot' the United States, residing at White Oaks, in the county of Lincoln and Territory of New Mexico, have invented certain new and useful Improvements in Pump-Rod Couplings; rand I do declare the following to be a full, clear, and eXact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, referencebeing had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

This invention relates to improvements in devices for coupling together the sections of pump rods in a manner to prevent accidental disconnection while in use, and in the operation of inserting and removing` the valves.

In the' majority of wells, especially Wellsof comparatively great depth a barrel is used, the diameter of which is less than that of the pipe which carries the water to the surface. The lower valve is constructed in such a man ner as that the plunger valve which is directly secured to the pump rod, may be connected therewith by turning the rod and screwing the valves together, and the whole withdrawn from the barrel and pipe by raising the rod. This arrangement obviates the necessity of removing the pipe when repairs to either Valveare needed. The rod is made up of sections secured together and the object of the invention isto prevent these sections from being disconnected or unscrewed from each other while in use, and during the operation of coupling the valves together to remove them, or uncoupling the valves after the same are in place.

The invention consists in means for preventing the sections of the rods from turning independently and in the construction of the parts thereof and the relative arrangement and operation of same, all of which will fully and clearly appear from a reading of the fol- ,lowing description, taken in connection with the accompanying drawings, which form a part of this specification, and in which- Figure 1 illustrates in perspective view my improved coupling applied. Fig. 2 is a longitudinal sectional view, and Fig. 3 is a crosssection on line of Fig. 2.

Referring to the drawings by letter,.A denotes one section of a pump rod, andB is the adjacent section, the meeting ends of which are made rectangular in cross section and are provided with holes c c. The coupling consists ot' two members, the upper one cl consisting ot' a rectangular shaped block d having a recess d2 in its upper side to receive the end of the section A, and having a socket d3 centrally arranged and screw threaded as shown.- Extending upward from the block are two straps d4 d4 which in practice confine the lower end of the section A, and have holes d5 d5 which register with the holes c c, and e c are bolts passed through the registering holes and secured by nuts e e.

The lower member f ot' the coupling consists of a block f in the lower side of which is a recess f2 to receive the upper end of the section B, and extending upward from the upper end ot' lthe block is a screw threaded pin f3 which in practice enters and engages the threaded socket d3 in the upper member.

Depending from the block are two straps f4fAAL having holes f5 f5 and which with the bolts g g and nuts g g constitute the means for connection with the section Bin a manner similar to the connection between the upper member and the section A. The block f has secured to one of its sides a stop h for a purpose to be explained.

t' is a sleeve rectangular in cross section, the

inner side conforming in size and shape to the outer side of the blocks. In practice the members are secured respectively to the sections A and B, and the pin entering the socket the -parts are turned until the blocks cometogether. The sleeve which temporarily has been'moved upward on the upper memberis moved downward over the coupling until the lower side engages the stop. The members are thus held firmly by the sleeve against turning,and consequently the danger of accidental uncoupling is overcome.

In practice all of the sections of the pump rod are connected by my improved coupling,

in a manner to insure rigidity throughout. When it is desired to remove the valves for repairs, the rod may be turned to connect the valves `without the danger of unscrewing the sections, and as the rod is withdrawn the sections are disconnected byraising the sleeve IOO and unscrewing the members of the coupling. When the valves are to be replaced the sections are screwed together and the rod lowered, and the latter turned in the opposite direction to disconnect the valves.

The coupling is simple in construction, is cheaply made, and may be easily manipulated.

I claim- A coupling for the sections of pump rods, consisting of two separable members, the lower one of which comprises a block square in cross section and having in its lower end a rectangular recess for the end of a section of the pump rod, apertured straps integral with said block and connected by bolts and nuts to said section, a threaded pin extending from the npperend of the block, and a stop on one side of said block; the upper member comprising a block conforming in size and shape to the lower block and having a threaded recess for connection with the pin, and a recess in its upper end for another section of the pump rod, straps integral with said block and having nut and bolt connection with said section, and a square sleeve adapted to be slipped over said blocks when the latter registerand to abut against the stop.

In testimony whereof I aliix my signature in presence of two witnesses.

WALLACE L. GUMM. Witnesses:

SIDNEY M. PARKER, FRANK G. RAIBLE.

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