US1899846A - Rod joint - Google Patents

Description

C. A. BOYD ROD JOINT Feb. 28, 1933.

Filed May 9, 1932 62 au cl .5. ,Foycb ATTORNEY INVENTOR Patented Feb. 28, 1933 STATES P UlTE ROD JOINT Application filed May 9, 1932. Serial No. 610,174.

This invention relates to rod joints and its general object is to provide a oint primarily designed for rods used in Wells and the like, that is capable of a swivel action which will prevent the rod from bending and twistmg, therefore damage and breakage thereof will he reduced to a minimum.

A further object of the invention is to provide a swivel rod joint that includes latching means for detachably securing the rod sections together and the latching means is protected from obstructions and the like, therefore casual unlatching thereof is prevented.

Another object of the invention is-to provide a latch actuated swivel rod joint that is relatively small so as to lit in well casings of all .sizes now employed.

Another object of the invention is to provide a rod joint of the character set forth, that is simple in construction, inexpensive to manufacture and extremely efficient in operation and service.

This invention also consists in certain other features of constructon and in the combination and arrangement of the several parts, to be hereinafter fully described, illustrated in the accompanying drawing and specifically pointed out in the appended claims.

, in describing my invention in detail, reference will b had to the accompanying drawing wherein li re characters denote like or I corresponding parts throughout the several vews and in which:

Figure 1 is a perspective view of the rod joint whichforms the subject matter of the present invention.

Figure 2 is a view partly in section with the. parts of the joint associated.

Figure 8 is a longitudinal sectional view taken through the oint with-parts in elevation.

Figure 4t is a perspective view illustrating a part of my rod oint.

Figure 5 is a sectional View taken approximately on line 55 of Figure 3.

Figure 6 is a sectional view taken approximately on lineG-h of Figure 3.

Referring to the drawing in detail, it will he noted that I have illustrated my rod joint as including elements formed directly with theends of the rod sections A and B, but I want it understood that these elements may besecured to the rodsections in any manner without departing from the spirit. of'the invention. The rod sections have formed with their upper ends the enlarged bodyportion of my joint and it will be noted that the body poition is tapered slightly and provided with a fiat top while its base 2-Inerges into the rod B as best shown in Figure 4. Arranged between the base 2 and the body portion is a shoulder 3 for the purpose of receivingthe lower edge ofthe cover 4 which is in the form of a sleeve. 1 The body portion has arranged therein a recess 5 which" extends transversely from its outer Wall, and disposed in communication with the recess 5 is a relatively small recess 6 that not only extends transversely from the outer side of the body portion butalso extends through the top. 7 i

Therecesses provide a chamber for the purpose of receivingthe lower end portion of the section A, and this lower end hasformed therewith a head 7 that is of'a size tofit within the recess 5 and is engageable'with the shoulders 8 disposed-at thej-uncture-of the recess -5 with the recess 6, so. as to prevent longitudinal movement of the head within the chamber as will be apparent.

A portion of the lower end of the rod A above the head 7 is arranged in the recess 6, and bythis construction it willbe apparent that the head and then'adjacent end portion of the rod A is mounted for rotary'movement within the chamber and is held therein accordingly through the instrumentality of the cover 4 which isprovidedwith a lug 9 extending inwardly from the interior surface thereof .for the purpose of being received within the recess 6. 'Theinne'r face. of the lug 9 is: rounded to'fo'llow the curva ture of the lower end ofthe rod A, and by providing the lug, it'will heobviousrthat foreign matter cannot pass into the'chamber which is formed by the recesses 5 and'6, therefore the head will be free to rotate as will be apparent.

PATENT OFFICE-*" isposed laterallywithin the bod 1- b low the recess 5 is a bore which communicates with the chamber and mounted for movement in the bore is a pin 11 that is provided with a head 12 disposed within the chamber 10 thathas also arranged therein a coil spring 18, the latter having its end convolutions engaging with the rear wall of the bore and the head 12 for the purpose of normally retaining the pin in its outermost position for dlsposal within an aperture 14 arranged in the cover 1 so as to retaln the cover about the tapered portion of the body become casually removed, therefore it is practically impossible for the joint elements to become separated while the rod is in a well or the like, yet at the same time the joint provides for a swivel action between the sections and such action prevents the rod from twisting which is the cause of most trouble in pump rods and the like. In pump rods now employed, the ends thereof are threadedly secured together which results in the rod twisting and crystallizing the metal. When the metal becomes crystallized, it will be apparent thatsli 'ht pressure will break the same, but such a casualty could not happen to my device in view of the swivel joint. i

It is thought from the foregoing description that the advantages and novel features of my invention will be readily apparent.

I desire it to be understood that I may make changes in the construction and in the combination and arrangement of the several parts, provided that such changes fall Within the scope of the appended'claims.

What I claim is:

1. A rod joint of the character described comprising a body portion having recesses formed therein to provide a chamber, headed means detachably andswivelly mounted within said chamber, a cover surrounding the body portion,'a lug formed with said cover and arranged in said chamber, said lug cooperating with the cover for securing the headed means within the chamber, and a latching means for said cover.

and received in the aperture to retain the cover in operative position;

In testimony whereof I aiiix my signature.

CLAUD A. BOYD.

2. A rod joint comprising a body portion provided with a chamber therein extending through the side and top thereof, a shoulder arranged in said chamber, a headed means detachably and swivelly mounted within said chamber and having its head engageable with the shoulder, a cover surrounding the body portion and being provided with an aperture, a lug formed with the cover and disposed within said chamber for engage-

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