US371476A - George a - Google Patents

Description

(No Model.)

G. AIREESE.

LEVER WRENCH.

No. 371,476. Patented Oct. 11, 1887.

Mum atom from turning for the greater part by the said UNITED STATES PATENT rEicE.

GEORGE A. REESE, OF WELLSTON, OHIO, ASSIGNOR OF ONE-HALF TO OF SAME PLACE.

LEVER-WRENCH.

SPECIFICATION forming part of Letters Patent No. 371,476, dated October 11, 1837.

Application filed July 19, 1886. Serial No. 208,441.

To all whom it may concern:

Be it known that I, GEORGE A. REEsE, of \Vellston, in the county of Jackson and State of Ohio, have invented certain new and useful Improvements in LeverWVrenches; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form part of this specification.

My invention relates to an improvement in wrenches, and more particularly to wrenches known as pivotaljaw.

Hitherto in wrenches of the above character, where the jaws were provided with serrations or teeth, the said serrations or teeth have been adapted to impinge the nut or pipe which they engaged with their edges and hold it gripping-edges of the teeth which indented to a greater or lesser extent the face of the nut or pipe.

The object of my present invention is to provide a wrench in which the serrations in the opposite jaws shall be so arranged that they will present a shoulder or abutment and an extended bearing along the edges of the held nut at the diagonally-opposite corners, thereby securing a firmer and snrer hold with a comparatively light pressure.

A further object is to provide a wrench which shall be adapted to adjust itself perfectly to different-sized nuts, and also to pipes or rods having a curved exterior.

\Vith these ends in view my invention consists in certain features of construction and combinations of parts, as will be hereinafter described, and pointed out in the claims.

In the accompanying drawings, Figure 1 is a view of the wrench withjaws closed. Fig. 2 is a perspective view of the same with jaws open, and Fig. 3 represents different-sized nuts and a pipe within the grasp of the jaws.

A and A represent the handles, and B B the jaws, preferably formed integral therewith. One of the handles-A, for exampleis provided with a thicker portion at the base of the jaw, in which is formed an eye, 0, through (No model.)

which the oppositejaw projects, the twojaws being pivotally secured together by the pivotal bolt or rivet a. The jaws are held normally closed by a spring. E, inserted between the handles, which latter are preferably curved slightly outward or away from each other to afford free action for the spring. One of the j awsB, for example-is nearly or quite straight along its serrated face, its teeth I) being longer on the face toward the pivotal point of thejaws than on the opposite face, as shown.

The upperj aw has a slightly-curved serrated face, the teeth 1), formed thereon, being of a similar construction to the teeth 1/, but having their faces set at such angles as to occupy positions parallel to the faces of the teeth I), one when the jaws are partially opened and another when thejaws are more widely opened, the long or short face of each tooth b corre sponding with the long or short face of the tooth I), located either diagonally toward the end or pivot of the jaw, as the case may be. The result is that when an angularly-shaped nntsuch asf, for exampleis grasped by the jaws its diagonally-opposite corners will be received into two diagonally-opposite notches, the corners of the nutabutting against the short faces of the teeth and the long faces of the teeth resting in extended contact with the edges of the nuts, as shown. Nuts might also be grasped by having one corner only set in the notch between two teeth and the edge of an opposite tooth impinge against the opposite side of the nut, as shown atff".

A pipe curved on its exterior is grasped, as shown at f, by being cramped between two teeth on each of the opposite jaws.

The handles are preferably made of malleable wrought-iron and the teeth of steel.

Thejaw B is inserted in the eye cbefore the latter is perfectly cool and while it may be spread to receive it, after which it is closed to its normal shape.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a wrench, the combination, with ajaw provided with a series of teeth having a longer and a shorter side, of a curve-faced jaw piv- ICO faced jaw having a longer and shorter side, the longer sides having a more or less oblique direction relatively to one another, for the pur I 5 pose substantially as set forth.

In testimony that I claim the foregoing as my own I aflix my signature in presence of two witnesses.

GEORGE A. REESE.

Witnesses:

O. E. DUFFY, J. M. LIVELY.

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