US264582A - Car-brake - Google Patents

Description

(No Model.) V

-P. STREHLAN.

GAR BRAKE.

No. 264,582. Patented Sept.'19,'1882 gnfl PW w G.\| O B|\ 2+ 7. a E A, o r C N l r 0 IF! e U. a I. u a

' UNITED STATES PATENT OFFICE.

FREDERICK W. STREHLAN, OF BALTIMORE, MARYLAND.

CAR-BRAKE.

SPECIFIdATION forming part of Letters Patent No. 264,582, dated September 19, 1882. V Application filed July 5, 1882. (No model.) v

To all whom "it may concern:

Be it known that I, FREDERIOK W. STREH LAN, of Baltimore city, State of Maryland,

have invented certain new and useful Improvements in Steam or'Air Brakes; and I hereby declare the same to. be fully, clearly, and exactly described as follows, reference being had to the accompanying drawings, in which- Figure 1 is an elevation of a car embodying my invention, the part of the figure to the right of the line ma; being in central vertical sectional view. Fig. 2 is a plan of a detail of the device, and Fig. 3 is a perspective view of one of the yokes for supporting the push-bar and its immediate attachments.

Myinvention relates in general to that class of brakes for railway-cars operated by means of steam'from the locomotive boiler, 'or by compressed air led from a reservoir which is placed under the tender or the foot-board of the engine, and which is kept stored with compressed air by means of a donkey pump or a pump driven by means ot an eccentric on one of the axles.

More specifically, my invention relates to f thatclass of brakes in which a push-bar permanently located under each car is forced backward to apply the shoes to the wheels.

The invention will first be described, and then pointed out in the claims. .In the drawings, A is the platform of the car-body, and a, a are the transverse trussbeams, which are connected by a pair of rods,

B B, (see also Fig. 3,) that sustain a U-shapedsupport, b. Similar rods, B,-extend from the bolsters toward the ends of the car, and on them are mounted similar supports, b.

The push-bar is made in two pieces, 0 G, bolted and lapped as shown at l 1, whereby it may be taken apart and slid out endwise when repairs are necessary. Keys'J. secure the bar. to the supports, which latter are provided with rollers j,'so as to slide freelyupon the rods B B.

To the brake-beams d are pivo'tedlevers D, from which extend rods E to the opposite beams, e.

Pull-rods F F! are attached to the upper a chain, G, leads over a pulley, g, and is attached to the rod C,-and a second chain, H, leads to the shaft h of the hand brake windlass.

The form of brake mechanism shown as applied to the trucks is preferred; but of course I may use in connection with the push-bar any ofthe conventional and well-known forms, such as the Stevens or Hodge.

On the ends of the push-bar C G- are butfers c.

I have not shown the couplings or couplerbuEers of the car, as they have nothing to do with my invention. course, that they project far enough to prevent the rods 0 0 of the several cars from coming in contact when backing.

It will be understood, of

I have also not shown the cylinder, piston,

and push-bar on the tender or engine, as that part of the device is old and well known.

In operation, Supposing the car to be moving in the direction of the arrow and the push -bar to beforoed in the opposite direction, the chai'n G will be drawn around the pulley g, the upper ends of the levers D will move forward, and the shoes will be pressed against the peripheries of the wheels. Should the car he turned end for end, the same effect would be produced by the direct ,pull of the chain as the rod is forced backu In case of accident to the power-brake the handbrake may be used by means of the chain IT.

The U shaped supports subserve an important end in sustaining the red O 0 against lateral thrust when the brakes are applied on a curved track.

The entire mechanism may be applied at a small cost to carsv as already constructed, ample space being affordedbetweeu the bolsteer and swingbeam for the rods F F, and between the'lower cross-timber and the swingbeam for the rods 0 G and bars E.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In combination with the push-bar, the

U-shaped supports 1) b, sliding upon rods sepulley to the push bar, whereby movement of cured beneath the ear-body, and rods and thelatterin eitherdirection applies the brakes, 1o chains connecting the brake mechanism of the as set forth.

trucks with the push-bar, substantially as de- 5 scribed FREDERICK W. STREHLAN.

2. In combination with the sliding supports Witnesses: I) b, the two-part rod 0 C, lapped and bolted GEO. H. PISTEL,

at Z l, the rods F F, and chain G, led over a WILLIAM J. DEMUTII.

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