Emergency brake unit

Details Emergency brake unit Emergency brake unit

1975-03-10

1976-08-17

Halvosa, George E. A.

Brakes

Wheel

Transversely movable

192 73, F16D 5300

Patent

active

039748952

ABSTRACT:
An emergency brake unit that is hydraulically operated which may be removably secured in pairs to the axle of a pneumatic-tired freight vehicle. In an emergency the pair of brake units may be concurrently actuated to bring first and second braking surfaces into frictional contact with both the interior and exterior surfaces of the brake drums with which they are associated. Each of the emergency brake units is of such structure that it may be used with a brake drum of either a left or right pneumatic-tired wheel. The braking surfaces of the emergency brake units are preferably metallic, and are brought into metal-to-metal contact with the exterior and interior surfaces of the brake drum when the units are actuated by hydraulic fluid under pressure.

REFERENCES:
patent: 535376 (1895-03-01), Hill
patent: 3199635 (1965-08-01), Bessler et al.
patent: 3357525 (1967-12-01), Francois
patent: 3853207 (1974-12-01), Rist

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