US173890A - Improvement in car-brake shoes - Google Patents

Description

G. M. BRILL CAR BRAKE-SHOE. No.173,890. I Patented Feb. Z2 1876Q l Nl DgIS ATEs PATENT QFFICE.

, enonen MQERI LL, or P LADELPHIA, PENNSYLVANIA.

f MPRQVEM NT INYCA'R-BRAKQE.SHOES.

. -To all whom tt may concern;

Beit known that I, GEORGE M. BRILL, of

the city andcountyof Philadelphia, and State of Pennsylvania, have invented a new. and useful Improvement in Brake-Shoes; and I do hereby declare the following to bea clear and exact descriptionof the nature thereof,

sufiicient to enable others skilled in the art to which my invention appertains to fully understand, make, and use the same, reference being had to the accompanying drawings, making part of this specification, in which Figure l is a side view of the device embodying my invention. Fig. 2 is a similar view, the parts being separated; Fig. 3 is a transverse section in line so as, Fig. 1. Fig. 4

is a vertical section in line 3 3 Fig. l.

Similar letters of reference indicate corresponding parts in the several figures.

My invention consists of a brake-shoe, which is formed with a groove, so as 'to brake both against the tread and flange of the wheel, and with a vertically-extending head having a neck, a holder having a vertically-extending Referring to the drawings, A represents a brake-shoewhose face a is adapted to engage with the tread of the car-wheel and groove b,

with the flange thereof. At the rear ot' the portion occupied by the groove 1) there is secured at head, B, which may be of cylindrical, spherical, angular, or other form, and extends in the direction of the length of the shoe. The face a is designed to bear against the tread of the wheel, and the groove 12 embraces the flange of the wheel, so that both tread and flange will be simultaueonsly'pressed by the shoe, and wear away uniformly by the action specification forming part of Letters Patent No. 173,890, dated February 22,1876; application filed a l r Angust9,1875. v l

of. said shoe. 0 represents the holder of the shoe. In the'holder is formed a verticallyextending socket, B, whose inner face is ,of form correspondingto that of the head B, and is adapted to receive said head,and at the bottom of the socket there is a ledge or flange, D,- on which the head of the shoe will be supported. The said socket B has a vertical necessary to arrange the shoe so that its groove b will becoincident with the flange of the wheel. socket B, and insert the key D, and the parts are in proper position for operation against the wheel, the brake-beam being attached to the shoe at d or elsewhere, in any well-known manner.- It will also be seen that the head B fully occupies the socket B, and prevents the entrance of dirt intothe latter. In the upper part of the holder 0 there is a horizontallyarranged circular eye, F, one side of which is open, as at G, the dimension of the opening in the vertical direction of the holder being less than-the diameter of the eye. H represents a hanger, which consists of a frame, of which the face J of one side, J, is flattened so as to permit said side to pass the opening G of the eye F, and thus enter the eye in which it has its play, the hangers thus supporting the holder, and, consequently, the shoe, the passing of theside J of the hanger through the opening G being accomplished by presenting the side to the opening at a rightangle to the vertical direction of the holder 0, as shown in Fig. 2. When the hanger and eye are properly located a key is passed through the ends of the open partof the eye, so as to prevent disengagement of the eye and hanger. It will be seen that when the brake is applied, and the shoe is in contact with the wheel, theeye F of the holder will be brought Then introduce the head D into the to a horizontal position, and owing to the side J of the hanger extending at a right angle to the holder 0, said side cannot enter the open-.

ing G, and thus cause disengagement of the hanger and holder, the same provision existing during the jumping of the shoe, holder,

and hanger; When, however, it is required to separate the holder and hanger the latter is turned sidewise, so that the flat face J of the side J will be in line with .the opening G of the eye F. Then draw the side out through the eye, and the parts are disconnected. The side of the hanger opposite to the side J will also be formed with a flat face, J, for engagements with a top holder, bracket, or the support attached to the car and having an open eye, F G, similar to that in the holder 0. It will also be noticed that the shoe and holder, andlefts, and the disconnection from each other having a neck, I), and with the holder 0 formed with a vertically-extending socket, B, front slot at, and a horizontal ledge, D, at the bottom thereof, substantially as and for the purpose set forth.

2. The hanger H formed with a flat-faced side, J, in combination with the holder, substantially as and for the purpose set forth.

GEO. M. BRILL. Witnesses:

JOHN A. WEIDERSHEIM, A. P. GRANT.

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