US91837A - Improved pushing-jack - Google Patents

Description

@tutti Gtiiiiire.

ALFRED FREEMAN, OF PEORIA, ILLINOIS.

Letters Patent No. 91,837, dated Tune 29, 1869.

The 'Schedule referred to in these Letters Patent and making part of the same.

T0 all whom it may concern Be it known that I, ALFRED FREEMAN, of the city and county of Peoria, and State ot' Illinois, have invented anew and improved `Pushing and Hoisting- Jack for Cars, and I do hereby declare that the following is a full, clear, and exact description ofthe construction and operation ot' the same, reference being had to the accompanying drawings, making a v part ot this specification, in which- Figure l is a perspective view.

Figure 2 is a side elevation.

Figure 3 is a view of jaw from front.

Figure 4. is a plan view of device.

Figure 5 is a perspective View of casting on horizontal lever.

Figure 6 is a view of jaw.

Like letters in the different figures of the drawings indicate like parts.

This device is for moving cars along the track at stations or other places in the absence of an engine, or for lifting displaced cars ou'to the track, or for hoisting cars for repairs, or any similar uses.

It consists ot'two levers, A and B, one upright, the other attached horizontally to the upper end of the former, by an adj ustable joint or fulcruin, l), and armed with a depression, g, having at the extreme end thereof a serrated claw, n., to receive the end of a car.

The vertical lever B is somewhat longer than the ordinary distance of the bottom or floor oi' a car above the rail, and has a V-shaped jaw, k, ofl iron, roughened and vhardened, or tile-faced, to clasp a rail tightly without cutting it, to form a good fulcrum for the lower lever.

The arms of the jaw are curved slightly, so that when the lever is inclined toward the car, the jaw may still clasp the rail at a right angle.

The upper end of this lever B has a slot, m, which receives the horizontal lever A.

Each side ofthe slot m is armed with an iron casting, a, bolted thereto, and bored with holes for a movable` piu, e, or bolt to pass through the slot, at the same time passing through similar holes in a casting, b, on the horizontal lever A.

The holes are placed about one and a half inch apart, to suit the various heights required in the use ot`. this device.

This casting a is bolted securely to the arms of the slot. Y v

The horizontal lever A is of convenient length, and carries, on its under side, an armature or casting, b, pierced with t-wo or more horizontal holes, at right angies to the lever, and about three inches apart.

The casting is bolted securely to the under side of the lever, either through lips left at each end of cast-4 ing, or in any other convenient way.

The shorter arm h of this lever is much thicker or stronger than the other, and its extremity is hollowed with a transverse notch, g, as shown in Iig. 2, to receive and retain the lower corner of any car to which the jack is applied, and rnay be armed with iron, and may terminate in a hooked ledge or serrated claw, a. j 'lhe chain t is att-ached, by a. ring or staple, to that end of" the lever, and carries a double hook, p, or an equivalent device, for drawing the jack 'after it, the hook being attached to a staple in the car, already there, or driven in for that purpose, by the operator of the jack.

The operation of this device is as follows:

The hook is inserted in the staple in the car. Having adjusted the horizontal lever to the proper height, and the jaw 7c placed across the rail, the depression of the longer arm ofthe lever A, combined with the joint inclination of the lever B, forces the car forward, at the same. time the jack is drawn'forward for a new impulse by the chain.

For hoisting-purposes, a chain, p, with hook and staple, is combined with the jack to retain the upper level' at the desired height, and the serratedclaw n to bite Von a chain or other object.

I am aware ot' a scissor-shaped jaw heilig used in Hutsons patented jack to clasp the rail, but itis objectionable, on account of' its injuring the same. The object therefore of the V-shaped jaw, is to avoid that.

Another objection in Hutsons jack, and which is complained of by those who have used it, is the twisting of the hinge sideways, when force is applied in moving the car. Now the iron casting or hinge a and b will not only remedy this, in keeping the lever at a right angle to the car in operating it, but will also admit of the lever heilig adjusted to various heights of cars, by the holes at different distances apart therein.

Having thus fully described my invention,

What I claim therein as new, and desire to secure by Letters Patent, is-

l. The V-shaped jaw k, having the arms thereof ileaced, substantially as described.

2. In a pushing and hoisting-jack for cars, consisting of two levers, A and B, the combination ofthe jaw It, adjustable joint a b, depression g with hooked ledge or serrated claw n, and chain i, the whole constructed substantially as described and shown.

ALFRED FREEMAN.

Witnesses: E. THURLOW,

W. A. LovELL.

Images