Brakes – Vehicle – Railway
Patent
1981-01-21
1983-07-19
Butler, Douglas C.
Brakes
Vehicle
Railway
188250E, 104 26A, 238148, 238382, B61K 702
Patent
active
043939600
ABSTRACT:
A brake shoe structure includes a series of alternating long brake shoes and short brake shoes mountable on adjacent brake beams in a railroad car retarder. The length of the long brake shoe is such that the long brake shoe symmetrically straddles two adjacent brake beams. The length of the short brake shoe is such that the shoe occupies the spacing on the brake beams between two long brake shoes. The long brake shoes are affixable to each of the brake beams at at least two points. The brake shoes contain a plurality of slanting slots in their braking surfaces for interrupting harmonics producing screeching noises during retardation. The brake shoes may be formed of steel or heat treatable ductile iron.
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"BN Studies Retarder Noise Abatement", Railway System Controls, Nov. 1972, pp. 14-17, 20.
Mazur Michael B.
Punko Emil M.
AAA Sales & Engineering Inc.
Butler Douglas C.
Diefendorf R. R.
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