US1203728A - Wrench. - Google Patents

Description

\ H. V. HAiNES.

WRENCH.

APPLICATION FILED JULY 24, 19:6.

1 203,728. Patented'Nov. '7, 1916.

H- V. HFHNES s'rA TNT nion.

WRENCH.

Specification of Letters Patent.

Patented Nov. '7, 1916.

Application filed July 24, 1916. Serial No. 111,062.

To all whom it may concern Be it known that I, HARRY V. HAINEs, a citizen of the United States, residing at Farrell, in the county of Mercer and State of Pennsylvania, have invented certain new and useful Improvements in Wrenches, of which the following is a specification, reference being had to the accompanying drawings.

This invention relates to certain improvements in wrenches and has relation more particularly to a device of this general character especially designed and adapted for use in connection with pipe work or the like; and it is an object of the invention to provide a wrench having novel and improved means whereby the same may be efiectively engaged with the work.

The invention consists in the details of construction and in the combination and arrangement of the several parts of my improved wrench whereby certain important advantages are attained and the device is rendered simpler, less expensive and otherwise more convenient and advantageous for use, all as will be hereinafter more fully set forth.

The novel features of the invention will hereinafter be definitely claimed.

In order that my invention may be the better understood, I will now proceed to describe the same with reference to the accompanying drawings, wherein- Figure 1 is a view in elevation with parts broken away of a wrench constructed in accordance with an embodiment of my invention; Fig. 2 is a view in end elevation of the sleeve as herein embodied, detached; and Fig. 3 is a sectional view taken substantially on the line 33 of Fig. 1.

As disclosed in the accompanying drawings, 1 denotes a sleeve having one portion enlarged transversely, as at 2, and through which is disposed the shank 3 of the sliding jaw 4, said shank 3 being also loosely directed through the sleeve 5 and extending beyond an end thereof.

A portion of the sleeve 1 to one side of the sleeve 5 has disposed therein the shank 6 of the second jaw 7 and the portion of the shank 6 within the sleeve 1 is provided with an elongated slot 8 disposed longitudinally of the shank 6 and through which is directed the pivot pin 9. By this connection between the sleeve 1 and shank 6 it willbe pierceived that the jaw 7 is capable of limited p ay.

A longitudinal margin of the shank 3 is provided with an elongated recess 10, the base of which being provided with the teeth 11 with which coacts the holding dog 12 pivotally supported intermediate its length as at 14, by the adjacent wall of the sleeve 5 and having its outer extremity provided with an operating button 15 disposed exteriorly of the sleeve 5, while the inner end thereof is provided with a tooth 16 directly engageable with the teeth 11 whereby it will be perceived that said holding dog 12 serves to hold the shank 3 against retrograde movement when pushed inwardly or in a direction toward the jaw 7.

Interposed between the sleeve 5 and the inner end portion of the holding dog 12 is the spring 17 which serves to constantly urge the tooth 16 in a direction toward the teeth 11. It will be self-evident however that by forcing the button 15 inwardly the tooth 16 may be disengaged from the teeth 11 so that the shank 3 may be retracted.

It is preferred that the retracting movement of the shank 3 be accomplished in an automatic manner, and as herein set forth one end portion of a retractile spring 18 is anchored to the shank 3 preferably at a point inwardly of the teeth 11, while the opposite end of said spring 18 is anchored to the sleeve 5 at a point outwardly of the connection between the spring 18 and shank 3.

The sleeve 5 is provided with a removable plate 19 whereby access may be had therein for the purposes of repair when the requirements of practice may necessitate. It will also be understood that the sleeve 5 serves as an operating handle. It will also be selfevident that by forcing the shank 3 inwardly, the jaws 4 and 7 may be caused to effectively grip the work while the play of the shank 6 will facilitate the operation of the tool. I have also found it of advantage to provide the sleeve 5 with the inwardly directed lug or block 20 which has its inner end terminating in close proximity to the outer end of the holding dog 12 so that said dog may contact therewith during the work in order to relieve the pivot 14 against excessive strain.

From the foregoing description, it is thought to be obvious that a wrench constructed in accordance with my invention is of an extremely simple and comparatively inexpensive nature and is particularly well adapted for use by reason of the convenience and facility with which it may be assembled, and it will also be obvious that my invention is susceptible of some change and modification without material departure from the principles and spirit thereof and for this tion of the shank extending beyond the second sleeve being adapted to be grasped to force said jaw of the shank into engagement with the work, a holding dog pivotally engaged with the second named sleeve and coacting with the shank for holding the same against movement in a direction away from the work, a retractile member positioned within the sleeve and coacting with the shank to impart movement thereto in a direction away from the work when the holding dog is disengaged from the shank, and a second jaw operatively engaged with the first named sleeve.

In testimony whereof I hereunto affix my signature in the presence of two witnesses.

J. L. DOYLE, V E. G. FRANCIS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C.

Images