US445431A - Buggy-wrench - Google Patents

Description

(No Model.)

E. NIGHSWANDER.

BUGGY WRENCH.

N, m J r WW 2 i I w w E A T l 3 Q 2?? 4 %m w A m H I JV VEJV TOR WITNESSES I UNITED STATES PATENT ()FFICE.

EMANUEL NIGHSXVANDER, OF \VELSHI RUN, PENNSYLVANIA.

BUGGY-WRENCH.

SPECIFICATION forming part of Letters Patent No. 445,431, dated January 27, 1891.

Application filed April '7, 1890, Serial No. 346,923. (No modeL) To all whom it may concern.-

Be it known that I, EMANUEL N IGI-ISWAN- DER, a citizen of the United States, and a resident of Welsh Run, in the county of 'Franle lin and State of Pennsylvania, have invented certain new and useful Improvements in Bu ggyrenches; 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, which-form a part of this specification, and in which Figure 1 is a perspective view of my improved buggy-wrench. Fig. 2 is a longitudinal sectional view of the same, and Fig. 3 is a cross-section on line a: at in Fig. 2.

Like letters of reference denote corresponding parts in all the figures.

My invention has relation to so-called oarriage or buggy wrenches of that type in which two parallel bars, provided each with its appropriate clamping-jaw projection at right angles therefrom, slide upon each other, so that by proper adjustment of the nut whereby the device is operated the projecting jaws may be made to grasp and hold tightly the axle-nut, so as to remove or replace the same when it is desired to remove or replace the wheels; and my improvement consists in the specific construction and combination of parts of a wrench of that particular type, as will be hereinafter more fully described and claimed.

Reference being had to the accompanying drawings, the letter A designates an arm or bar hollow or semi-cylindrical in cross-section and provided at one end with the jaw B, projecting at right angles therefrom, and at the other end with a screw-threaded extension 0, upon which a thumb-nut D is placed.

'Another bar E of the same width as bar A is placed upon the top of the latter and is provided at its end contiguous to the jaw B with a corresponding jaw F, and also with a depending bail or keeper G, through which bar A is inserted and is adapted to slide forward and back. At the other end this bar E is bent downwardly at right angles, as shown at H, said part 1-1 having an aperture I, of such dimensions that the threaded ext-ension 0 of bar A may be inserted through it and move freely forward and back. This depending part or hearing II is further provided with another screw-threaded aperture J, intersecting the plain bore I at right angles and adapted to receive the screw-threaded upper end of the handle-bolt K, the projecting lower end of which is provided with a finger-hold L and washer M. This handle-bolt K is inserted loosely through the handle N, which may be of wood, metal, or other suitable material, and is held in place upon the bolt by the washer M and finger-piece L.

The thumb-nut D for setting the jaws and holding them in their adjusted position is provided at its inner end with a circumferential groove 0, into which projects a spur P at the outer end of a projecting finger Q, fastened upon or made integral with the bar E or its depending part H. This is for the purpose of holding the end of the sliding bar E at all times up against the nut, and as an additional or auxiliary means to that effect I employ a coiled spring R, which is placed around the threaded extensions 0 and bears with one en d against the shoulder on bar A, where this threaded extension begins, and with its other against the depending part II of bar E, so that this spring, in conjunction with the spurred finger P and groove 0 in nut D, will operate to hold bar E, with its depending part or hearing 11,11 against the nut during the ma nipulatious of the tool.

The upper sliding plate E may be provided on its under side with a transverse semicircular boss or projection S, adapted to fit within the longitudinal groove or recess T in bar A, so that said boss or projection will form a guide, and also serve to relieve the keeper G from strain, as the lateral strain on the wrench in using it will be borne in part by the keeper G and in part by the downwardlyproject-ing boss S, fitting in the longitudinal recess in bar A and bearing laterally against the sides of the same.

From the foregoing description, taken in connection with the drawings, the operation of this device will be readily understood. By turning the tl1u1nh-nut D the sliding bar or plate E may be moved so as to bring the two jaws B and F the proper distance apart to clamp the corners or sides of the nut which is to be removed or replaced, after which the ICO jaws are tightened up against the nut from opposite sides or corners, so as to bind it firmly between them, and by now revolving the tool by means of its right-angled pivoted handle M the nut to which the tool is applied is easily unscrewed or screwed home, as the case may be.

Vhere this wrench is to be used chiefly for one-size of nuts, the jaws, after they have onceb'een adjustedthe proper distance apart, may be locked or fastened in this position to fit any given size of nut simply by giving the fingenpiece L at the lower end of the handlebolt a turn or two, so as to screw the upper threaded end of bolt K up through the threaded apertureJ into the transverse aperture I and against the threaded extension C of bar A, thereby binding or fixing the, same.

I am aware of the existence of a carriagewrench consisting in combining with the body or bar cast or formed upon a screwthreaded wrought-iron shank-rod, and provided with stationary or fixed jaws, a 1101- low sheath surrounding said body and shank and carrying movable jaws and having a projecting prong near its outer end with a thumbpiece shaped into a forked wrench, the same being illustrated and described in Patent No. 265,704, and I do not claim said construction 3o herein.

Having thus described my improvement, I do not claim, broadly, the combination of the sliding bars having jaws at right angles and one of said bars being provided with a 1011- gitudinal threaded extension and with a nut or burr upon the same, whereby the bars may be adjusted longitudinally upon each other, so as to bring their jaws the proper distance apart; but I That I claim, and desire to secure by Letters Patent of the United States, is

The herein-described wrench, consisting of the bar A, having jaw B and longitudinal screwthreaded extension 0, bar E, having jaw F, keeper G, boss or projection S, dependin g bearing H, provided with the plain aperture I and screw-threaded aperture J intersecting each other at right angles, handle-bolt K, threaded at its upper end and having finger-hold L, washer M, and handle N, the thumb-nut D, having circumferential groove 0, the spurred finger P, and the coiled spring R, substantially as described.

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

EMANUEL NIGl-ISWANDER.

Witnesses:

LOUIS BAGGER, BENNETT S. JONES.

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