US55100A - Improvement in screw-wrenches - Google Patents

Description

UNITED 'STATES PATENT OFFICE.

JOHN HEGARTY, OF JERSEY CITY, NEW JERSEY.

IMPROVEMENT IN SC-REW-WRENCHES.

Speciiication forming part of Letters Patent No. 55,100, dated May 29, 1366.

To all whom it may concern.-

Be it known that I, JOHN HEGARTY, of Jersey City, in the county of Hudson and State of New Jersey, have invented a new and useful Improvement in Screw-Wrenches; and I do hereby declare that the following is afull, clear, and exact description of the same, reference being had to the annexed drawings, makinga part of t-his specification, in which- Figure l is a perspective view ot' a wrench constructed according to my invention. Fig. 2 is a transverse section taken in the line x x otl Fig. 1, and viewed in the direction ot the arrow in the said iigure.

Similar letters ot' reference indicate corresponding parts in both figures.

This invention is more especially intended for turning jam-nuts and couplings upon the faucets or pipes attached to wash-hand basins, which, from their peculiar position with regard to 4the basins, cannot be turned by a common wrench, and is also designed to dispense with the movable sets hitherto employed in wrenches for this purpose to adapt them to nuts and couplings ot' dit't'erent sizes.

The invention consists in a novel arrangement upon the end of a suitable shank or bar ot' a iixed cross-piece provided with a stationary and a sliding griping-jaw, and of an operating-screw, whereby a wrench is formed by which the nuts and couplings can be conveniently reached and turned, and which is easily adjusted to those ot' different sizes.

A is a cross-piece xed upon the end of a shank or bar, B, and upon one end' of this cross-piece A is a fixed griping-jaw, C, the said fixed jaw C being situated at right angles to the cross-piece A, upon which it is formed, and also transversely to the shank B, as clearly shown in thedrawings. Placed upon that endv of the cross-piece A opposite the fixed jaw U is a sliding griping-jaw, D, the said end of the cross-'piece passing through a suitable transverse slot in the sliding jaw D, the said jaw being parallel with the xed jaw G, and having a auge, a, which projects inward for a short distance upon the top and sides of the crosspiece A, in order to strengthen the said jaw D against the strain brought upon it in the operation of the wrench. Projecting downward from the jaw D is alug or ear, b.

E is a screw which works in a transverse hole formed in the upper end of the shank B, immediately below the cross-pieceA, and which is parallelwith the said cross-piece', and has a head, d, upon one end, by means of which itis turned. This screw E passes through a female screw formed transversely in the lu g b, in such manner that by turning the said screw in one direction or the other, as required, by means ot' the head d, as atoresaid, the slidingjaw D may be moved upon the cross-piece A to adjust the distance between the two jaws to tit a nut or coupling of any desired size, and to retain the slidiugjaw D in place while turning the same.

Fixed upon the lower end ot' the shank B isl a transverse handle, F, by means ot' which the wrench is tuined.

In using the wrench the upper end thereof, or, in other words, that end formed by thejaws C D, is thrust up into the narrow space occupied bythe nut or coupling, and the jaws are tted upon the said nut or coupling, as the case may be, by turning the screw E, and thus adjusting the said jaws, as hereinbefore set forth. The wrench is then twisted or turned around in one direction or the other, according as it is desired to tighten or loosen the init or coupling, by means of the handle F. The shank B being turned vertically, or, in other Words, around its longitudinal axis, the

wrench can be operated to turn the nuts or v with each other and with the shank B, substantially as herein speciiied.

JOHN HEGARTY. Witnesses:

A. LECLERC, HENRY T. BROWN.

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