Handling: hand and hoist-line implements – Hook – hoistline – or grab type – Locking device
Patent
1980-01-17
1981-10-13
Marbert, James B.
Handling: hand and hoist-line implements
Hook, hoistline, or grab type
Locking device
24241SB, B66C 136
Patent
active
042944791
ABSTRACT:
A safety lifting hook comprises a safety latch mounted on the hook body for pivotal movement about a horizontal axis in the plane of the hook body. The latch has two opposed noses, and in a safety position of the latch, one of the noses is situated in the vicinity of the nose of the hook and the second nose is retained by a locking pawl. The locking pawl is pivotally mounted about an axis transverse to the pivot axis of the latch and is spring-biased into a position in which it retains the second nose of the latch.
REFERENCES:
patent: 3741600 (1973-06-01), Crook, Jr.
patent: 4050730 (1977-09-01), Tada et al.
Marbert James B.
Ross Karl F.
Stas Societe Technique d'Accessoires Specialises S.A.
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