Hoisting assembly with quick-release hoisting shackle

Details Hoisting assembly with quick-release hoisting shackle Hoisting assembly with quick-release hoisting shackle

1985-04-29

1987-01-06

Marbert, James B.

Handling: hand and hoist-line implements

Grapple

Lewises

294 8224, 521255, B66C 134, B66C 166

Patent

active

046341641

ABSTRACT:
A hoisting assembly with a quick-release shackle for the connection of a hoisting harness to an anchoring member embedded in a precast concrete building element, for the tilt-up and transport of the latter, the assembly comprising a ring part reaching through the central opening of the hoisting shackle and a link plate attached to the ring part at a split hub portion of the ring part which is welded after insertion into the hoisting shackle. The link plate, oriented perpendicularly to the ring part, is attached thereto by means of a weld, or by means of an internally threaded axial extension engaging a male thread on the hub portion of the ring part. The link plate extension may include a threaded sleeve and a connecting screw about which the link plate is rotatable.

REFERENCES:
patent: 3284125 (1966-11-01), Blaske, Sr. et al.
patent: 3883170 (1975-05-01), Fricker et al.
patent: 4173856 (1979-11-01), Fricker
patent: 4417425 (1983-11-01), Case et al.

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