US1231757A - Brake-shoe. - Google Patents

Description

I. B. LESH.

BRAKE SHOE.

n AUG-25,1916- Patented July 3, 1917.

LQMHEK UNIT SATES ATEN FI@.

IRA B. LESI-I, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO THE RAILWAY MATERIALS COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

BRAKE-SHOE.

Specification of Letters Patent.

Patented July 3, 191W.

Application filed August 25, 1916. Serial No. 116,873.

To all whom it may concern:

Be it known that I, IRA B. Lnsrr, a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Brake- Shoes, of which the following is a specification.

The object of this invention is to provide a strong and substantial sheet metal attaching lug for brake shoes of novel construction to withstand the shocks and jars to which such lugs are subjected in handling and in service and which can be rigidly connected with the back plate of the shoe to prevent disengagement therefrom.

The invention can be embodied in car shoes and driver shoes of all kinds, includ ing common cast iron shoes, composite shoes and composition shoes, but for simplicity I have shown it in a common cast iron shoe in the accompanying drawings, in which-- Figure l is a longitudinal sectional view of a shoe embodying my invention;

Fig. 2 is a top plan view of the shoe;

Fig. 3 is a side view of the back;

Fig. 4c is a sectional view on the line 4-4 of Fig. 2; and

Fig. 5 is a detail view showing the lug partly broken away.

The back plate 6 may be made in any desired manner and rigidly connected to the body 7 of the shoe in any of the ways customary in the art. The lug 8 is made in the form of a box out of a single strip of sheet metal and comprises a top member 9, two end members 10 and four side members 11, the said end and side members being integral with the top member but separated from each other. The side members 11 are arranged in pairs at opposite sides of the top member and are spaced apart to provide the key-way 12. The ends 13 of the side members 11 project down through transverse slots 14 at the side edges of the back plate and are bent outwardly against the underside of the back plate. The ends 15 of the end members 10 are bent around the side edges and up against the underside of the back plate, the back plate being preferably recessed at 16 to accommodate these ends.

My improved box lug is strong and substantial and will withstand, without bend ing or fracturing, the shocks and jars to which it is subjected in handling and in service.

I claim:

1. A brake shoe comprising a body, arein forcing plate embedded therein, and a sheet metal box lug comprising atop member, two end members and four side members, the end and side members being integral with the top member and anchored to the plate.

2. A brake shoe comprising a body, a reinforcing plate embedded therein and having transverse slots at its side edges, and a sheet metal box lug comprising a top memher, four side members having their ends engaged in said slots and bent up against the underside of the plate, and two end members having their ends bent up against the underside of the plate.

3. A brake shoe comprising a body, a reinforcing plate embedded therein and having oppositely disposed transverse lugs at its side edges and intermediate recesses, and a one piece sheet metal box lug comprising a top member, four side and two end members integral with said top member and engaging said slots and recesses in the plate, the ends of said side and end members being bent up against the underside of the plate.

IRA B. LESI-I.

Witnesses FRANK BILLINSKI, WILLIAM FRICH.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. G.

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