Plate-lifting device

Details Plate-lifting device Plate-lifting device

1980-03-10

1981-12-08

Cherry, Johnny D.

Handling: hand and hoist-line implements

Grapple

Expanding

294 89, B66C 166

Patent

active

043044328

ABSTRACT:
A device for lifting a cover plate, the cover plate having a hole therein with opposed beveled surfaces, preferably at the center of gravity of the plate, which device includes a lifting element having an eye extended above laterally expanded, beveled portions, the beveled portions being slightly shallower than the thickness of the plate and of dimensions adapted to correspond in size and angle with the beveled surfaces of the plate.

REFERENCES:
patent: 201409 (1878-03-01), Graham et al.
patent: 764281 (1904-07-01), Duncan
patent: 981365 (1911-01-01), Birnie et al.
patent: 2422693 (1947-06-01), McArthur
patent: 2563164 (1951-08-01), Fletcher
patent: 2719747 (1955-10-01), Layne
patent: 2786428 (1957-03-01), Arnold
patent: 3282229 (1966-11-01), Elsner
patent: 3617085 (1971-11-01), Modrey

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