US276236A

US276236A - Waltee g

Info

Publication number: US276236A
Authority: US
Publication date: 1883-04-24
Anticipated expiration: 1900-04-24

Description

v UNITED STATES PATENT OFFICE.

WALTER G. GARTH, OF LODEBAR, VIRGINIA.

WAGON-JACK.

SPECIFICATION forming part of Letters Patent No. 276,236, dated April 24, 1883.

Application filed February 20, 1883. (No model.)

To all whom it may concern:

Be it known that I, WALTER G. GARTH, of Lodebar, Nelson county, Virginia, have invented a new and useful Improvement in Wagon-Jacks and I do hereby declare that the following is a full and accurate description of the same.

My invention relates to that class of wagonjacks wherein the 'jack is provided with a rack and latch to hold it at the desired elevation, and a lever whereby said jack may be raised step by step or lowered in the same manner; and it consists, first, in adonhle fulcrum for said lever, whereby a small pivot-pin may be employed and the jack not be disabled when,by reason of long use, the pivot-pin shall be weakened or broken; second, in an arrangement of step-pins or studs longitudinally along the side of the jack for engagement with the lever, so that said lever may engage or disengage by a lateral instead of a longitudinal movement.

That others may fully understand myinvention, I will particularly describe it, having reference to accompanying drawings, wherein Figure 1 is a perspective view of my invention. Fig. 2 is a vertical central section of the same. Fig. 3 is a transverse section.

A is the jack post or frame, provided with a central longitudinal cavity, within which the jack B may slide. At its bottom it is provided with a foot to stand on theground.

At the top of the jack-post there is a saddle, b, to receive the axle or other object to be raised.

Along one edge of the jack B there is a seriesof ratchet-teeth, d, and in a proper location on the jack-post A there is a pivoted latch, E, adapted to engage with the teeth d when the jack is raised up and prevent its descent until the latch has been forcibly withdrawn from engagement with said teeth. This may be done, when desired, by means of the thumb-piece of said latch, the jack having first been lifted out of engagement by means of the lever F.

The jack is also provided with a series of studs or teeth, g, which project from its side to furnish points of engagement for the end of the lever F.

The jack-post A is provided with a transverse ledge, h, and above said ledge there are sockets to receive the joint-pin t, whereby the lever F is attached to the jack-post. The lever F,the joint-pin Land the ledge h are all so organized and arranged with reference to each other that said lever bears upon the ledge it mainly as its fulcrum, but also upon the joint-pin to a lesser degree. By this means the pin may be made less in diameter than usual, and the principal fulcrum for the lever being a rigid ledge constituted by a part of the jack-post itself, there will never be danger of breaking down the fulcrum in lifting heavy loads. The joint pin and ledge are longer than the thickness of the lever F, so that the latter may have a movement and adjustmentjsidewise to permit it to be easily disengaged from the teeth or studs 9 bya sidewise movement, and, passin g outside others, to engage with another of said studs by a counter sidewise movement.

Having described myinvention, whatIclaim as new isl. The jack-post provided with the solid fulcruin h, and the lever F, pivoted at 'i, so as to rest also upon the fulcrum h, combined with the jack A, provided along its side with the studs 9, adapted to engage the short arm of said lever F and the latch E, substantially as set forth.

2. In a wagon-jack, the post A, provided with a lever, F, fulcrumed thereto, so that it may move sidewise on said fulcrum, combined with a jack, B, provided with studs 9, projecting laterally from its side, whereby the lever may engage or disengage by a sidewise movement upon its fulcrum.

W. G. GARTH.

Witnesses:

R. D. 0. SMITH, AUG. S. JORDAN.