Releasable lock for brakes

Details Releasable lock for brakes Releasable lock for brakes

1975-12-12

1977-02-15

Blix, Trygve M.

Brakes

Elements

Locks

92 25, 188 67, 303 89, B60T 1716

Patent

active

040078159

ABSTRACT:
A locking device for a reciprocating rod brake actuator movable between brake applying and brake releasing positions includes a pivoted pawl movable between locking and releasing positions for releasably locking the rod in its brake applying position. A spring normally biases the pawl to its locking position, and a fluid cylinder is operative when pressurized for moving the locking device to its releasing position. The rod is movable toward and away from the pawl, and is normally supported against movement away from the pawl by a releasable support. Release of the support frees the rod for free movement between its brake applying and releasing positions even though the pawl is in its locking position.

REFERENCES:
patent: 1586269 (1926-05-01), Smith
patent: 2505612 (1950-04-01), Ericson
patent: 2759569 (1956-08-01), Keehn
patent: 3402792 (1968-09-01), Masser
patent: 3597016 (1971-08-01), Gachot et al.
patent: 3759147 (1973-09-01), Johnsson et al.
patent: 3874747 (1975-04-01), Case et al.

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