Bridges – Gangway – ramp – or dock leveler – Attached
Patent
1981-08-05
1983-04-12
Byers, Jr., Nile C.
Bridges
Gangway, ramp, or dock leveler
Attached
248293, 292 98, 292111, E01D 100
Patent
active
043793541
ABSTRACT:
A device is provided for releasably locking a parked vehicle to an adjacent loading dock. The device includes a vertically adjustable carriage mounted on the front wall of the dock, and a hook-like member supported by the carriage for independent rotary movement between an operative vehicle-interlocking position and an inoperative vehicle-release position. A carriage-supported first member is disposed coaxially with the axis of said hook-like member and moves therewith as a unit. A flexible second member engages the first member and upon a predetermined pulling force being applied to said second member, causes the hook-like member to move to the operative vehicle-interlocking position. A unit is operatively connected to the flexible second member whereby the predetermined pulling force applied thereto is enhanced so as to effect a substantially greater turning force being exerted on the first member. Mounted on the carriage and disposed adjacent the first member is a releasable lock element which retains the hook-like member in the operative vehicle-interlocking position. Manually actuated means is connected to the lock element to effect controlled disengagement of the element from the first member whereby the hook-like member will automatically assume an inoperative vehicle-release position.
REFERENCES:
patent: 610656 (1898-09-01), Martin
patent: 1128614 (1915-02-01), Landemare
patent: 1169643 (1916-01-01), Hickenbotham
patent: 1489965 (1924-04-01), Prentice
patent: 2403820 (1946-07-01), Miller
patent: 2405240 (1946-08-01), Shearer
patent: 2954241 (1960-09-01), Warren
patent: 4114718 (1978-09-01), Lipshield
patent: 4279050 (1981-07-01), Abbott
Hahn Norbert
Hipp Steven J.
Byers Jr. Nile C.
Rite-Hite Corporation
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