Handling: hand and hoist-line implements – Hook – hoistline – or grab type – Load releasing means
Patent
1991-10-31
1992-10-06
Cherry, Johnny D.
Handling: hand and hoist-line implements
Hook, hoistline, or grab type
Load releasing means
B66C 134
Patent
active
051525674
ABSTRACT:
A remotely released safety hoisting shackle is disclosed including a pair of elongate, flat load suspending plates suspended from a conventional rigging clevis and pin, a load suspending pin through the lower ends of the plates, a fixed, guide block attached to one of the plates, a locating snatch block attached to rigging above the locating block, and a lanyard reeved from the load suspending shackle pin through the fixed block and then through the locating block to a remote station. The pulley of the guide block is located adjacent the shackle pin so that the shackle pin is removed in a direction coincident with its long axis upon pulling on the lanyard. The other end of the shackle pin has a removable linchpin connected to a short length cable spliced to the lanyard between the locating block and the fixed block so that upon pulling on the lanyard from a remote station, the linchpin is removed first from the shackle pin and then the shackle pin is removed from the load suspending plates and a load, thus to free the shackle from a load.
REFERENCES:
patent: 1751309 (1930-03-01), DeMone
patent: 1768484 (1930-06-01), Lotts
patent: 1908146 (1933-05-01), Helton
patent: 3462945 (1969-08-01), Barber
patent: 3895836 (1975-07-01), Barnes
patent: 4216987 (1980-08-01), Ely
Cherry Johnny D.
Litman Richard C.
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