Lifting device for setting floating objects afloat in the water

Details Lifting device for setting floating objects afloat in the water Lifting device for setting floating objects afloat in the water

1986-12-10

1988-05-24

Marbert, James B.

Handling: hand and hoist-line implements

Hook, hoistline, or grab type

Load releasing means

114 51, 114365, 114377, B63B 2300, B66C 136

Patent

active

047461578

ABSTRACT:
A lifting device is provided for rapidly coupling and uncoupling a floating load, such as a boat, when it is set afloat or raised from the water. It includes essentially a hook secured to the load and a coupling element connected by cables to a lifting appliance. The concavity of the hook is turned downwards. Its section is trapezoidal and tapers towards its tip. The coupling element includes two arms whose facing walls are slanted and guide the hook towards the central housing. Springs, disposed laterally in the housing, come to bear against the lateral slanting faces of the hook and prevent it from leaving again.

REFERENCES:
patent: 1808945 (1931-06-01), Butler
patent: 3266353 (1966-08-01), Gretter

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