Handling: hand and hoist-line implements – Hook – hoistline – or grab type – Locking device
Patent
1977-12-09
1979-07-31
Marbert, James B.
Handling: hand and hoist-line implements
Hook, hoistline, or grab type
Locking device
B66C 138
Patent
active
041628039
ABSTRACT:
A latch release device operated by a mechanical impulse and constructed so as to sequentially release a plurality of latches in response to a corresponding plurality of mechanical forces. Operation of the latch release device is accomplished by a single operating arm and a single trigger bar in combination with a plurality of sears corresponding to the plurality of latches provided. The device is particularly useful for releasing individual loads at a remote location in response to individual mechanical forces such as may be provided by a messenger weight.
REFERENCES:
patent: 3845978 (1974-11-01), Huber
patent: 3926467 (1975-12-01), Crissy et al.
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