Disengaging apparatus

Details Disengaging apparatus Disengaging apparatus

1980-06-16

1982-09-07

Cherry, Johnny D.

Handling: hand and hoist-line implements

Hook, hoistline, or grab type

Locking device

114378, B66C 134

Patent

active

043480438

ABSTRACT:
Disengaging apparatus including a hook having its pivot point and its engaging point substantially vertically aligned, being positioned between a pair of plates and having an integral counterweight extending laterally from the engaging point. A first link is attached at one end to the lateral extension and at the other end to the first end of a second link which rotates about a fixed point. The links have a first extended position under a load and rotate to a second position, thereby rotating a constant-radius engaging surface of the hook about its center at the pivot point of the hook in light or no load situations. Additionally, a stop and locking members may be provided to prevent accidental release of the hook.

REFERENCES:
patent: 99671 (1870-02-01), Havermale
patent: 1813294 (1931-07-01), Hunt
patent: 2443629 (1948-06-01), Matuszewski
patent: 2714731 (1955-08-01), Binmore
patent: 3046598 (1962-07-01), Daugherty
patent: 3109676 (1963-11-01), Mercer
patent: 4281867 (1981-08-01), Kariagin

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