US80768A - Improved wagon-jack - Google Patents

Description

B, as set forth.

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' Letters Patent No. 80,768, dass August 4, 186s.

IMPROVED WAGON-JACK.

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T0 ALL WHOM ITMAY-.CONCERM l Be it' known that I, SAMUEL RICE, of Westford, in the county of Chittenden, and State of Vermont, have invented a new and useful Improvement in-Wagon-Jaeks; and I do herebydeclare the following to he e. full clear, and exact'description of the same, reference being had to the 'accompanying drawings, in which- Figure 1 is a side elevation of my jack.

Figure 2 is a vertical section of the same. i l

My invention consists in the manner of constructing myjaek, so 'that the weight of the lever may be readily adjusted without being detached from the supporting-frame. f

That others may fully understand my invention, I will particularly describe it. Y

A. is the base, made ofV stout plank, and having securely bolted tovit two uprights or posts, B, which are connectedattheir tops, and at intervals, by cross-pieces, C. A rack, D, of 'cast iron, is let into the inner side of each of the posts B, as shown in fig. 2, so that the points of the teeth of the lrack will be far enough from the wood of the post to leave a lclear passage, E, in front'ot' said teeth, through which the fulerum-pin'i` ofthe lever G may traverse in passing`from one adjustment to another.

'.lhe lever G should be'ot such thickness as to lill loosely the space between the posts, and the pin F is inserted through said lever, and projects on each side far enough to enter the notches of the rack D; The notches in the rack D are formed in the manner shown; that is to say, they are circular, and comprise sectors of about two-thirds of a complete circle, and from theV ends of said sectors the teeth are pointed, as shown.

This permits an easy entrance for the fulcrum-pinF, and a secure seat for the same while in operation.

The lever may be provided with hooks, 'H and I, by means of which the jack may be employed to' raise other `heavy weights besides wagons,by placing said jack` in a suitable position, and attaching thefweight to be raised, by a chain'for cord, to the hook H. .T he hook' I and short chain J will serve to hold the lever G with a weight resting upon the other end. I

To change the adjustment-of the lever to adapt it, forsinstance, to high or low axles, it is only necessary to slip the lever forward far enough to remove the fulcrum-pin out of its seat, and then to raise or depress the lever until the fulcrurn-pin is opposite the proper notch.

The cast-iron lrack may be constructed with edges bevelled, so that when inserted in place the wood of the post will overlap the edges of theiron in such a way as to retain the iron in place without any other fastening, and if this plan should be employed, the construction of theja'ck-would he facilitated by making each post of" two pieces of plank, a piece being cut from one of said pieces corresponding in shape and size with their-on rack to be inserted. v i

Having described my invention, what Ifclaim as new, is

The cast-iron racks D D, constructed substantially as described, and inserted in and held by the posts B SAMUEL RICE.

Witnesses:

L. L. Litmanen, A. G. Lucas.

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