Lifting arrangements for massive objects

Details Lifting arrangements for massive objects Lifting arrangements for massive objects

1976-10-06

1978-05-09

Marbert, James B.

Handling: hand and hoist-line implements

Grapple

Lewises

52707, 294 82R, B66C 166

Patent

active

040883612

ABSTRACT:
Pockets, defined by molded plastic shells, are embedded in a massive concrete article. Lifting cables have rods to fit into the pockets. The shells which define these pockets are injection-molded to provide a lateral spline to pass a key formed on the lifting rod, and also have a parti-cylindrical end housing, closed by a snap-fitted cover plate, within which housing the key rotates to lock the rod in the socket when lift is applied to the rod.

REFERENCES:
patent: 3628820 (1971-12-01), Blatt
patent: 4018470 (1977-04-01), Tye

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