F - Mech Eng,Light,Heat,Weapons – 16 – D
Patent
F - Mech Eng,Light,Heat,Weapons
16
D
F16D 65/04 (2006.01) B61H 1/00 (2006.01) F16D 65/00 (2006.01) F16D 65/06 (2006.01) F16D 69/00 (2006.01)
Patent
CA 2249122
A brake shoe is adapted to engage the tread of a railroad car wheel via which the railroad car is guidably supported on a railed track for conditioning such car wheel thereby affecting adhesion between such wheel tread and railed track. Such brake shoe comprises a backing plate and a brake lining affixed to such backing plate. Such brake lining has a braking surface engageable with a wheel tread and further comprises a first and a second segment disposed on opposite sides of a midpoint of a key bridge of the backing plate. There is a first material in the form of a friction composition suitable for braking such railroad car wheel. The first material is formed on each of the first and second segments and there is a second material dissimilar from the first material. The second material is disposed as an at least one discrete insert in the first material, such second material conditions the railroad car wheel tread so as to affect adhesion between said wheel tread and the railed track. The second material has a wear rate dissimilar to that of the first material.
Formolo Joseph F.
Shute Bruce W.
Macrae & Co.
Westinghouse Air Brake Company
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