US712586A - Wrench. - Google Patents

Description

No. 712586. Patented Nov. 4, |902.

s. J. PETTY.

WRENCH.

'mpplicatipn mea .my s. 1902.,

UNITED STATT-3s STONEWALL Jr PETTY, OF GILLHAM, ARKANSAS.

PATENT FFICE.

wRsNcl-r.`

SEECIFICATIGN forming part of Letters latent N o. 712,586, dated November 4, 1902. Application filed July 3,1902. Serial llo. 114,267. (No model.)

To @ZZ whom it nul/,y concern:

Beit known that I, STONEWALL J. PETTY, a

'citizen of the United States of America, residing at Gillham, in the county of 'Sevier and State of Arkansas, have invented certain new and useful Improvements in Wrenches, of which the following is a specification. i

This invention relates to nut and pipe wrenches, and particularly to that class of wrenches known as sliding jaw.

The object of the invention is, first, the construction of a wrench whereby the adjustment of the movable or outer jaw is had by spring-operated means situated in the handle of the wrench; second, whereby the said adjustment of the movable jaw by the ,springoperated means is controlled by the inner j aw of the wrench, which is stationary withrelation to the adjustment, `but so pivoted as to frictionally counteract the action of the spr ng on the movable jaw;

A further object 0f the invention is to pro-` duce a wrench wherein theseveral parts may be easily assembled and when so' assembled will possess sufficient strength for the purpose intended. v

A still further object of the invention is to produce a wrench inwhich theseveral parts willpossess advantagesin points of simplicity, durability, and inexpensive structure.

With the above and other objects in View the invention consists -in the details of construction and in the arrangement and combination of parts, to be hereinafter more fully set forth and claimed.`

In describing the invention reference will be had to the accompanying drawings, forming part of this specification, and wherein like characters denote corresponding parts in` the several views, in whichy Figure 1 is a side view of a wrench embodying the invention. Fig. 2 is a section showing the adjusting means.

In the drawings, l indicates the forward end of the handle of the wrench, said forward end being hollow, so as to receive the primary stem 2 of the outerjaw 8, and has the ears 10 and 11 cast therewith. Integral with the forward end of the handle is `cast the rear tubularhandle 4. Said rear handle 4 is considerably smaller than the forward handle, so` as to allow a grip 5 of sulicient stoutness to be slid thereon and secured in place bythe screw 6, and thereby completing the uniform shape of the wrench. Between the forward and rear portions of the handle there is provided a iiange 7 for a purpose to be hereinafter described.

The outer jaw 3 is provided with the primary stem 2 and a secondary stem 8, said secondary stem being cast integral with the primary stem and when in `place extending into the tubular portion of the handle. On the outer end of the secondary stem is secured the thumb-nut 9. A spiral spring 15 is secured around the secondary stem, said spring abutting the ange 7 and the thumb-nut 9.

The inner jaw 12 is pivoted to the ears lO by means of the shaft 13; The side 14 of the inner jaw lwhich is adjacentto the primary stem is inclined, sothat it only contacts with the primary stem at its inner edge. A springtongue 18is journaled to the ears 11 by the shaft l16. One end of said tongue is embedded in the inner jaw 12, and the other end is held normally elevated by means of the spring 17and the inner jaw thus held in frictional contactwith the" primary stem `for the purpose hereinbefore described.

If'it is desired to adjust the wrench, it is only necessary to depress the spring-tongue 15 at its elevated end, thereby removing the frictional contact between'the primary stem and the inner jaw, pull out the movable jaw a distancegreater than the size of the object it is desired to operate upon, release the springtongue,` and place the jaws of the wrench so that the stock will fall between them. Again depress the tongue, and the movable jaw will adjust itself precisely as desired by reason of the expansion of the spring l5. p

Itwill be noted that various changes in the proportions and construction may be resorted to without departing from the scope ofthe invention. l

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

l. In a wrench, a movable jaw, ahandle, means within the handle for holding `the movable jaw normally closed and a pivoted jaw forming means for maintaining the movable jaw at a desired adjustment.

2. In a Wrench, a movable jaw, a handle,

IOO

means within the handle for spring-actuating the jaw-bar, a pivoted jaw and springactuated means acting on the pivoted jaw, whereby frictional contact is had between said pivoted jaw and the jaw-bar of the movable jaw.

3. In a wrench, a movable jaw, a handle, means within the handle for spring-actuating lthe jaw-bar, a pivoted jaw journaled in ears on the handle, one side of which frictionally engages the jaw-bar and means for normally holding the pivoted jaw in frictional engagement with the jaw-bar.

4. In a wrench, a movable jaw, a handle, means Within the handle for spring-actuating the jaw-bar, a pivoted jaw and springactuated means for maintaining the pivoted jaw in frictional contact with the jaw-bar, said means consisting of a pivoted tongue having one endembedded in the pivoted jaw and the other held normally elevated by a spring, substantially as described.

5. In a wrench, a movable jaw, a handle, means within the handle for spring-actuating the jaw-bar, a pivoted jaw journaied in ears on the handle, the pivot of said jaw being situated at a point below the center whereby the force of operating the wrench will be simultaneously utilized 'to increase the frictional contact between the pivoted jaw and the j aw-bar.

In testimony whereof I affix my signature, in the presence of two witnesses, this 30th day of June, 1902.

STONEWALL J. PETTY.

Witnesses:

BENJAMIN E. HENDRIX, JOHN S. HENDRIoKs.

Images