Apparatus for lifting concrete panels

Details Apparatus for lifting concrete panels Apparatus for lifting concrete panels

1986-10-16

1987-10-20

Cherry, Johnny D.

Handling: hand and hoist-line implements

Grapple

Lewises

294 8234, B66C 136, B66C 166

Patent

active

047009799

ABSTRACT:
An apparatus for lifting precast concrete panels includes a lifting body having a forward portion adapted to engage in an anchor head, a latch yoke pivotally connected to a rearward end of the lifting body and including a safety latch cooperating with the forward portion to lock an anchor head to the forward portion, a release yoke pivotally attached to the lifting body and including a cam roller for urging the latch yoke to pivot to a release position, and a lifting bail pivotally attached to the forward portion. The lifting body includes a safety pin block extending upwardly from a rearward portion thereof adjacent to the rearward end of the latch yoke. The latch yoke and safety pin block include bores which are in registry with each other when the apparatus is oriented to a locked position. A safety pin is inserted into the bores and prevents relative pivotal movement between the latch yoke and lifting body, and is removable from the bore by a lanyard which is pulled by a worker. '

REFERENCES:
patent: 4173367 (1979-11-01), Haeussler
patent: 4368914 (1983-01-01), Truitt et al.

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