US294380A

US294380A - Lifting-jack for starting cars

Info

Publication number: US294380A
Authority: US
Publication date: 1884-03-04
Anticipated expiration: 1901-03-04

Description

(No Model.)

v H. GRIMM.

LIFTING JACK FOR STARTING CARS.

No; 294,330. Patented Mar. 4,1884.

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X Z by NITE STAT S PATENT .QFFICE. v I

HENRY GRIMM, oF oUINoY, ILLINOIS.

LlFTlNG-JACK FOR STARTING CARS.

SPECIFICATION forming part of Letters Patent No. 294,380, dated March 4, 188.4.

I Application filed AugustQ, 1883. (No model.)

T at whom it may concern.-

Be it known that I, HENRY GRIMM, of Quincy, in the county of Adams and State of Illinois, have invented a new and useful Improvement in Lifting-Jacks for Starting Cars; and I do hereby declare that the following is a full, clear, and exact description of the same.

My invention is an improved lifting-jack for starting cars where they are to be moved a short distance, as is oftenrequired to be done at stations and sidings.

The invention consists of a lever having two pivoted standards to rest against and grip the rail, and a'pivoted arm between the two standards, so that as the lever is moved up and down it fulcrums upon one standard and then upon the other, and both movements'lift the arm, which, as it is set in an inclined position upon the car, pushes the car.

In the accompanying" drawings, Figure 1 shows the invention in side elevation. Fig. 2 shows an end elevation, and Fig. 3 a top view of the lever.

The lever is indicated at A, of ordinary construction', and provided with a slot, a. There are two. standards, B G. The lower part is forked, as shown in Fig. 2, and adapted to grip or wedge upon the head of the rail as it is pressed down. The upper end of each of the standards is adapted to pass through the slot and be pivoted therein, with a space sufficient between them for the arm D, whenthe saidarm is in an inclined position, as shown in Fig. 1. This arm is also pivoted within the slot of the lever, and its upper end isforked at d to bear against the corner of the the other, so as to allow the jack to stand in an inclined position, as shown in Fig. 1. In this position, when the free end of the lever is depressed, it fulcrurns upon the standard B, and,.working as a lever of the first order, lifts the arm D and pushes the car. Itis then lifted, when it fulcrums on the standard O, and also lifts the arm, working then as a lever of the second order. The standards and arm being set in an inclined position, at each movement of the lever the car advances and the free standard drops, slightly advancing its pronged foot upon the rail to take a new hold, and thus the apparatus gives step-bystep movementand pushes the car along. The relativepositions of the standards and lever D are such that the standards support the lever on each side and act as guides to keep it in proper position.

The apparatus is designed to be simple, easily applied, and easily worked, and to give powerful leverage upon the car.

I claim as my invention The combination of the lever, pivoted standards adapted to grip or take hold of the track or way, and the arm B, pivoted to the lever between the standards, and adapted to bear against the car, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

HENRY GRIMM. Witnesses:

(H. J. ARMOUR, GEO. BINKERT.

car. The forward standard, 0, is shorter than