US893376A - Car-brake. - Google Patents

Description

PATBNIDv JULY 14, 1908.

A. H. ROGER. CAP. BRAKE.

APPLICATION FILED MAR.2G,1908.

@E mi@ 'UNTTED sTATEs VPATENT onrrcn .ALBERT H. ROGER, OF PHILADELPHIA, PENNSYLVANIA.

CAR-BRAKE Application led March 26, 1908.

To all whom it may concern:

Be it known that I, ALBERT H. ROGER, a citizen of the United States, residing in the city and county of Philadelphia, State of Pennsylvania, have invented a new and useful Car-Brake, of which the following is a specification.

My invention consists of a car brake, whose shoes are adapted to be engaged with the rails and the wheels of the car, and provision is made for automatically sanding the rails, aswill be hereinafter fully set forth.

For the purpose of explaining my invention, the accompanying drawing illustrates a satisfactory reduction of the same to practice, but the important instrumentalities thereof may be varied, and so it is to be understood that the invention is not limited to the specific arrangement and organization shown and described.

Figure l represents a side elevation of a car brake embodying my invention. Fig.. 2 represents a bottom plan view thereof. Fig. 3 represents a partial side elevation and partial vertical section of a portion thereof. Fig. 4 represents'a vertical section of a portion on line x-x, Fig. l on an enlarged scale. Fig. 5 represents a perspective view of one of the brake shoes and adjacent connections.

Similar letters of reference indicate corresponding parts in the figures.

Referring to the drawings 1-A designates the brake shoes, and B designates the brakerigging `thereof, the same consisting of the cross-bars C, the longitudinally extending frames D, the inclined members E, which are pendent from the truck and form guides for the bars C in their sliding motions, the spring F which bears against said cross-bars, the connections G and the levers H, which latter, in the present case, are mounted on the dashers J and designed to hold the brake-shoes in inoperative position, while the spring F bears against the crossebars C, and serve to force said brake-shoes into operative position, as will behereinafterdescribed, it being noticed that the brakeshoes are connected with the cross-bars C and have their upper faces adapted to con tact with the treads of the car, wheels, and grooved to contact with the flanges of said wheels, and their under faces adapted to conform with the heads and bases of the rails, all as most clearly shown in Fig. 5.

In the sides of the body of the car, are boxes K, which are adapted to receive sand Specification of Letters Patent.

Patented July 14, 1908..

Serial No. 423,288.

or equivalent material, the same having a suitable inlet L, over which is the door or cover M. In the bolsters or sides of the truck are chutes N, which are in communication at top with the lower-ends of the boxes L, said ends being open, and are open at the bottom to the atmosphere, they being so disposed that the sand employed may drop from said chutes upon the tracks, as will be apparent on inspection of Fig. 3.

In order to prevent improper dropping of the sand upon the truck, l employ the valves P, which are formed of pieces of suitable material secured to the upper sides of the brake shoes, and so disposed that when the latter are in elevated or inoperative position, as in Fig. l, said valves have their seats on the lower walls of the chutes N, and so close the latter, as shown in Fig. 1, it being here .noticed that the brake-shoes are normally located above the rails and between adjacent wheels, and when in operative position, are lowered upon the rails and against the wheels, as will be hereinafter more fully referred to.

The levers H are adapted to be held in ltheir normal positions by suitable catches Q,

which are pivotally connected with the same, and adapted to be engaged with the heads R on the dashers of the car.

The operation is as follows 1-'When it is desired to employ the brakes, the proper lever H is released, when the spring F operatn ing the relative bar C forces it downwardly from its normal position, and so moves and lowers the brake-shoes, which are carried by said bar, so that they ride upon the rails and are also wedged against the car-wheels, and so, in the latter case, are subjected, to some extent, to the weight of the car, as well as to friction with the rails. Simultaneously with the movement of the brake-shoes, one of the valves leaves its seat and so opens the chute, allowing sand to drop from the latter upon the rails, thus increasing the friction of the beake-shoes upon the rails, and thereby rendering the shoes more powerful in Vtheir stopping action of the car. As the under faces of the shoes accord with the heads and bases of the rails, said shoes are guided thereby on the rails, and so prevented from lateral displacement therefrom.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is :4-

1. A car brake having a brake-shoe adapted to engage a rail of a track and a wheel of a car, a carrier for said shoe, a member connected with said carrier for controlling the same in the inoperative position of the shoe, and means bearing against said carrier adapted when said member is released to move said shoe into positive engagement with said rail and Wheel.

2. A car brake composed of a shoe adapted to frictionally engage a rail of a track and wedgingly engage a Wheel of a car, and rig;

ging composed of a crossvbar with which said shoe is connected, means for primarily controlling said bar and holding the shoe thereon in inoperative position, and means bearing against said bar so as to advance the same when released of said controlling means and place said shoe in its doubly operative positions.

3. In a car brake, a ear having a receptacle for sand or like material, a brake shoe, a crossbar carrying the same, an inclined guide on which said bar slides, and means for advancing said bar whereby it rides down said guide and frictionally engages a rail of the track and Wedges With a Wheel of the car said shoe being adapted to provide a valve to close said receptacle in the inoperative position of the ceptacle for sand or like material, the same y being open below, and a truck for said body having thereon a passage which communicates above with said rece tacle and has ,an exit opening below, and a rake-shoe having thereon a valve Which is adapted to primarily close said exit opening.

6. In a car brake, a car provided With a receptacle for sand or like material, the same having a discharge end over a rail of the track, and a movable brake-shoe having a valve thereon adapted to cover and uncover said end.

ALBERT H. ROGER. Witnesses:

JOHN A. WIEDERSHEIM, HARRY C. DALTON.

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