Composite brake drum

Details Composite brake drum Composite brake drum

1979-06-18

1981-05-12

Kazenske, Edward R.

Brakes

Elements

Brake wheels

F16D 6510

Patent

active

042666384

ABSTRACT:
Composite brake drums are made by die casting aluminum or other light weight metal around (A) the periphery of a substantially biplanar stamped steel drum back having a plurality of alternating holes and voids in its outermost edge in a plane and (B) a cast iron braking ring with smooth inner braking surface and rough outer surface whereby the lightweight die cast fills the holes and voids and interlocks with the rough outer surface to provide a brake drum of unitary construction that has improved braking performance with reduced weight and cost, especially compared to similar brake drums having a drum back of cast lightweight metal.

REFERENCES:
patent: 2008040 (1935-07-01), Roseberry
patent: 2026878 (1936-01-01), Farr
patent: 2104923 (1938-01-01), Dake
patent: 2129199 (1938-09-01), Dake
patent: 2162072 (1939-06-01), Eksergian
patent: 2262604 (1941-11-01), Eksergian
patent: 2398501 (1946-04-01), LeJeune
patent: 2840195 (1958-06-01), Holton
patent: 3016269 (1962-01-01), DeLorean
patent: 3038563 (1962-06-01), Boegehold
patent: 3069209 (1962-12-01), Bouer
patent: 3216105 (1965-11-01), Gollwitzer
General Hydraulic Brake Service, "Drum Brakes", 12-01-23, Jan. 1975.

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