US38936A - Improvement in lever-jacks - Google Patents

Description

UNITED STATES PATENT EEICE.

NATHAN BADGLEY, OF NEW YORK, N. Y.

IM PROVEM ENT IN LEVER-JACKS.

Specication forming part of Letters Patent No. 38,936, dated June 23, 1863.

To all whom t may concern:

Be it known that 1, NATHAN BADGLEY, of New York city, State ot New York, have invented new and useful Improvements in Jacks for Hoistin g Oarriages and fngons 5 and I d'o hereby decla-re the following to be a full and exact description thereof, reference being had to the accompanying` drawing, and to the letters of reference marked thereon, making a part of this specication.

The nature of my invention consists in a reciprocating lever on the inside of jack and a curved slot with bearings in each otthe sides.

A represents the view of jack with its main lever or handle, B, projecting from the bottom or platform C upward and outside behind the jack and between the side platesor frame, D. There is a curved slot, S,on each side otl frame D, having one or more bearings, in which the axle E of the lever B operates,and is adj usted to the bearings to the height required. The side plates, D, are niortised permanently into the platform C, and are held together by pins or screw-bolts G.

H is the center plate or sliding head, with two or more square steps or rests, I, at top. It operates vertically and is seltadjusting. It has long vertical slots J, through which the bolts G pass, and are as upright guides for the plate H to securegits upward or downward movement. This plate has a circular opening` near its bottom, in which the circular head K ofthe short lever L is connected with the main lever or handle .B by a wrist, M, and works 011 the handle fitting into it by a groove and mortise, so as to have areciprocating motion and pass beyond its center, and supported by the shoulder or bearing P of the lever B t0 prevent its further movement. As the handle B is pressed downward, the lever L assumes a vertical position and raises the center plate, H, until steps I are brought in contact with au axle of carriage when it is raised, and the plate H keeps its position resting` upon the lever L and curved end of handle B, and as the han dle B is again raised the plate H falls down and adjusts itself again to its resting-place.

What I claim as my invention, anddesire to secure by Letters Paten t, is-

l. The shape and construction ot' the reciprocatinglever L,operating as herein described.

2. The curved slot with its bearings on each side ot frame D.

3. The arrangement and combination ofthe devices of the plate H, lever L, with B, arranged and Combined as herein described.

N. BADGLEY.

Witnesses:

J. FRANKLIN Rnrcan'r, UANL. ROWLAND.

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