B - Operations – Transporting – 66 – D
Patent
B - Operations, Transporting
66
D
B66D 5/00 (2006.01) B66D 3/14 (2006.01) B66D 5/22 (2006.01) F16D 65/12 (2006.01) F16D 69/02 (2006.01)
Patent
CA 2081183
A mechanical brake for a hoist and traction machine, which is provided at braking surfaces of a driving member opposite to lining plates with brake releasing force control layers each comprising a plating layer made of nickel phosphate , nickel chromium or chromium and heat-treated, so that the surface condition of each braking surface of the driving member can be controlled and the surface hardness can be diminished , whereby an initial force for the brake releasing during the lowering a load or the releasing traction thereof is adapted to be lower.
Honda Munenobu
Kubota Haruo
Nishi Yoshio
Ueno Yoshio
Elephant Chain Block Company Limited
Marks & Clerk
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