US2530863A - Snapper attachment for wrench handles - Google Patents

Description

Nov. 21, 1950 R. CRAIG SNAPPER ATTACHMENT FOR WRENCH HANDLES Filed Sept. 15, 1947 Patented Nov. 21, 1950 SNAPPER ATTACHMENT Fi'iR/"WRENCH 'HANDLES Rufus Craig, Hobbs, N. Mex. Application September 15, -1947,SerialNo. 774,100

2 Claims. i

This invention relates to improvements in rod wrenches, and more particularly to a snapper attachment for securing to a wrench handle for obtaining an additional pull or snap on the wrench handle when coupling or uncoupling sucker rods in oil wells.

An object of the invention is to provide an improved snapper attachment for positioning upon the outer end of a rod wrench handle, said device being provided with a tubular housing extending at right angles to said handle in which a heavy steel ball and coil spring are housed, whereby when the Wrench is applied to a sucker rod for tightening or breaking a joint between two rod sections, a, quick pull o the wrench handle will cause the heavy steel ball to move against the coil spring to compress the same, after which the coil spring will forcibly project the ball into engagement with the end of the housing to impart a further snap or pressure upon the wrench handle in the direction of its movement, which action will further tighten the joint if it is being tightened or will readily break a joint if the joint is being unscrewed or broken.

A still further object of the invention is to provide an improved snapper attachment for rod wrenches which will be highly efficient in operation, and relatively inexpensive to manufacture and produce.

Other objects will appear as the description proceeds.

In the accompanying drawings which form a part of this application,

Figure 1 is a front elevation of a rod joint showing a pair of rod wrenches attached thereto with the improved snapper attachment disposed upon the handle of one of said wrenches;

Figure 2 is a, perspective view of a rod wrench with the improved snapper attachment shown on the end of the wrench handle, being partly broken away and in section to show the inner construction thereof;

Figure 3 is a sectional view taken onthe line 3-3 of Figure 1, and l Figure 4 is a sectional view taken on the line id of Figure 3.

Like characters of reference are used throughout the following specification and the accompanying drawings to designate corresponding parts.

In carrying out the invention, there is provided an improved snapper attachment for rod wrenches, or for wrenches of any other type, the same being adapted to be secured upon the outer end of the wrench handle.

The usual type of rod wrenchis provided :with ahandlei ,and with a J-shape head or jaw member 2 which will he p-ivotally supported upon the inner end of said handle upon the cross bearing pin or rivet 3.

The improved snapper attachment comprises a T-shape body member generally designated by the reference numeral 4 having a shank portion 5 which is, axially and longitudinally bored as at G for receiving the outer round end i of the wrench handle 5, the same being secured in place by means of the cross locking pin 8 extending through alignable bores 9 and Iii formed respectively through the shank 5 and handle end 1.

A cylindrical housing H is welded at 62 at right angles to the outer end of the shank portion 5 and is closed at one end as at 53; The opposite end of said cylindrical 0r tubular housing i l is open, and is internally threaded at its outer extremity as at it, for detachably receiving and supporting the externall threaded closure plug or member l5. A heavy coil spring it is disposed within the housing H and a heavy steel ball 37 is disposed within the housing I I between the adjacent end of the coil spring l6 and the closed end E3 of said housing I I.

In operation, when a rod point is to be tightened or broken between two sucker rod sections 58 and I9, rod Wrench 28 will be secured upon the square portion 2! on the rod section l8, and another rod wrench with the improved snapper attachment supported upon its handle i will have its jaw member 2 disposed upon the square shank 22 on the rod section iii. The wrench 2% will be held tightly with one hand, and the other hand with the snapper attachment on its handle will be given a quick jerk, which action will cause the heavy steel ball 5'! to move against and compress the heavy coil spring it, which will then forcibly project the heavy steel ball [8 against the closed end E3 of the housing H to impart an additional heavy snap and movement to the wrench handle I. In this manner, the rod joint will be readily broken if it is being unscrewed, or will be further tightened if the same is being secured and tightened.

From the foregoing description, it will be apparent that there has been devised and provided a highly efficient form of snapper attachment for wrench handles, and more particularly of the rod Wrench type, which device will be highly efficient in operation, and relatively inexpensive to manufacture and produce.

While the preferred embodiment of the instant invention has been illustrated and described, it will be understood that it is not intended to limit the scope of the invention thereto, as many minor changes in detail of construction may be resorted to without departure from the spirit of the invention.

Having described the claimed as new is:

1. In combination with a wrench having an elongated handle and a head pivoted at one end thereof, a snapper attachment comprising a bored shank receiving the opposite end of said I handle, a tubular housing secured at right angles g to said shank, and resilient impetus producin means disposed in said tubular housing.

2. The combination of claim 1 wherein said tubular housing is closed at both ends and said resilient impetus producing means includes a ball and a spring interposed between said ball and one of said closed ends, said spring normally urging said ball toward the other closed end.

RUFUS CRAIG.

invention what is REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 690,940 Febiger Jan. 14, 1902 1,038,539 Douglas Sept. 17, 1912 1,710,317 Lynch Apr. 23, 1929 1,923,122 Smith Aug. 22, 1933 2,398,392 Page Apr. 16, 1946 FOREIGN PATENTS Number Country Date 554,621 France Mar. 5, 1923 887,739 France Aug. 23, 1943

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