US205987A - Improvement in car-brakes - Google Patents

Description

2 Sheets-Sheet 2..

A. B.ALLEN.

Gar-Brake.

No. 205,987. Patented July 16, 1878.

WITNESSES- AARON BURR ALLEN,

PATENT OFFICE.

OF BARRY, ILLINOIS.

IMPROVEMENT IN CAR-BRAKES.

' Specification forming part of Letters Patent No. 205,987, dated July 16, 1878; application filed November 24, 1877.

To all whom it may concern:

Be it known that I, AARON BURR ALLEN, of Barry, in the county of Pike and State of Illinois, have invented certain new and useful Improvements in Oar-Brakes; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to which it appertains to make and use the same, reference bein g had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specification.

My invention relates to car -brakes; and consists in certain improvements in the construction of the same, as hereinafter described, the object of this invention being to provide a brake for railway-cars which shall be self-adjusting and safe in its operation.

In the accompanying drawing, Figure 1 represents, in plan, a part of the bottom of a car and truck provided with my improved brake. Fig. 2 is a vertical longitudinal section. Fig. 3 is an end view. Fig. 4 shows the part termed the brake-arm and the lever connecting with it. Fig. 5 represents part of the bumper-rod andconnectin g parts. Fig. 6 shows,in section,

the part termed the brake-head. Fig. 7 illustrates the operation of certain parts.

Referring to the drawing, A designates the car-bottom, and B the truck, with wheels 0. 1) indicates the buffer, under which is located the brake-head E, within a suitable support, to allow it a sliding movement, said brake-head being adjustable, 'and provided with a spring, a, at the rear end thereof. When in its usual position, the brake-head extends about four inches beyond the buffer D 5 and when the train is extended or drawn out, one brakehead touches or nearly touches another; but when the train closes, as in descending or stopping, one brake-head forces another in before the buffers can strike, relieving the cars from the shock of sudden jamming. A bolt, 1), passing through the slot 0 in the brake-head, limits its adjustment.

F is a brake-arm, which is located under the brake-head E, as shown in Fig. 2, and has its rear end coupled to a piy'oted lever, H,

which swings in the stud or hanger G, fixed to the bottom of the car. A small spring, d, is fastened to the arm F, to hold it apart from the brake-head E. The spring 01, however, yields to pressure when the parts E and F are brought into connection by means of the catch 0 on the arm F and one of the notches f on the brake-head, as hereinafter stated.

Under each car is placed lengthwise a rod, I, extending from end to end, and being loosely supported to allow it a sliding movement. Each end of the rod has a head, J, these rods I under the several cars of a train being all on a line, and the heads J coming in contact when the cars are brought closer together, as when a train is slacking up.

A sliding spool, g, on rod I engages the anchor h, pivoted under the brake-arm F, as shown, so that when the spool bears against the bifurcated part a: of the anchor the segmental part 2, turning, presses the arm F up against the brake-head, so that the projection e catches in one of the notches f, and a connection is formed between E and F as the former moves back.

The spiral spring g is designed to readjust the spool 9 into position and holds it steadfast.

The brake-shoes K are connected with the swinging lever 11 by means of the bow M and the rods L, N, and N, so as to be brought to the wheels by movement of the lever.

In Fig. 7 is shown the means of operating the rods I from the engine by means of a lever, 0, connecting with rod 1, having a head, J, and located on a line with the rods I.

I claim- 1. The rod I, with head J, anchor 74, with bifurcated adjunct .1', spool g, spiral spring y, and brake-arm F, substantially as shown, and for the purpose specified.

2. The adjustable brake-head E, with slot 0 and bolt 1), spring (I, and brake-arm F, substantially as shown and described.

3. Thebrakearm F, with catch 0 and sprin d, hanger G, swinging lever H, and brakehead E, with notches j, substantially as set forth.

4. The swinging lever H, hanger G, with hraltoarin F, how M, rods L N N, spring (I, In testimony that I claim the foregoing as and shoes K, substantially as sporiticd. my own 1 atlix my signature in presence of 5. The buffer 1), brake-howl E, hrakv arln two witnesses.

I, with notch 0 and spring" (I, pivotal lover AARON BU 1R Alililif.

H, hangers (l, and rod 1, with anchor ll, spiral \Vitrwsses:

spring and bifurcated part .1, substantially (TELL HARVEY,

as shown, and for the purpose spovitiml. Ii. MURPHY.

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