US194574A - Improvement in wagon-jacks - Google Patents

Description

A. BRATSCHI. WAGON-JACKS'.

. 194 574 Patented Aug. 28,1877.

mvnmron- ATTORNEYS;

' N.FETERS, FHOTU-UTNOGRAPHH. WASHINGTON, Dv

UNITED STATES PATENT OFFICE.

AMIEL BRATSOHI, OF PORTERSVILLE, PENNSYLVANIA.

IMPROVEMENT IN WAGON-JACKS- Specification forming part of Letters Patent No. 194,574, dated August 28, 1877; application filed June 25, 1877.

resents a side elevation, with parts out off, of

my improved wagon-jack; and Fig. 2 is a horizontal section of the same on. line a: m, Fig. 1.

Similar letters of reference indicate corresponding parts.

The object of this invention is to furnish a wagon-jack that is adapted to raise wagonaxles and other objects to any height, and rigidly support the same for oiling and other purposes.

The invention consists of a rigid vertical guide-post, secured to a suitable base, and of a sliding post, with central groove and crosspins, raised by a hand-leverwith hook-shaped end. The hand-lever is fulcrumed to a swinging rod, and made to engage one of the cross pins of the sliding post and lock the latter, in connection with the swinging brace-rod, into raised position.

In the drawing, A represents an upright post that is rigidly secured to a base-piece, A and braced by an inclined rod, A. Along the upright post A is guided a vertically sliding post, B, that is retained by metal guide-bands a, fastened, respectively, to the lower end of post B, and to the upper end of the main post A. The sliding post B has a central longitudinal slot or recess, b, and a number of cross-pins, d, which are engaged by the hookshaped end 6 of a hand-lever, O, that is fulcrumed to the upper end of a rod, D, which is pivoted at the lower end into a socket of the base-piece A The sliding post B is first raised along the main post up to the height of the axle or other object to be lifted, and then the hook of the hand-lever inserted, to take hold of one of the cross'pins according to the distance to which the axle is to be raised. When the sliding post is raised by the lowering of the hand-lever to such height that the swinging rod D bears against the same, the part of handlever D between the fulcrum and pin is thrown below the straight line connecting the pivot of rod D and the pin, engaged by the handlever, so as to act as a brace to the hand-lever, and lock thereby the sliding post rigidly in raised position for supporting the wagon-axle or other object. By raising the hand-lever, the sliding post is lowered, and the hook of the hand-lever disengaged from the pin.

The locking of the sliding post to any required height by the joint action of the handlever and pivot-rod forms the essential feature of this jack. and furnishes a simple and effective implement for the raising of axles and similar purposes.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- The combination, in a lifting-jack, of a sliding post, B, having cross-pins din a slot thereof, and a lever, (3, having an inverted hook at the end, the former connected with rigid base A by swinging rod D, and the latter by fixed guide-post A, as shown and described.

AMIEL BRATSOHI.

Witnesses WM. WILLIAMS, FREDERICK BURRY.

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