Mounting and actuating apparatus for tongs

Details Mounting and actuating apparatus for tongs Mounting and actuating apparatus for tongs

1980-11-25

1982-11-09

Cherry, Johnny D.

Handling: hand and hoist-line implements

Hook, hoistline, or grab type

Locking device

294106, 294111, B66C 316

Patent

active

043581471

ABSTRACT:
A mounting and actuating apparatus for the tongs of a grapple wherein a pair of pulleys carrying the tongs are interconnected by cable means extending between the pulleys in generally figure eight configuration, one embodiment teaching driving one pulley by a fluid pressure cylinder positioned between the pulleys and utilizing axially offset cable links, the other embodiment including a multiplying linkage between the two tongs.

REFERENCES:
patent: 1371291 (1921-03-01), Atkinson
patent: 1564041 (1925-12-01), Windecker
patent: 2412845 (1946-12-01), Stevens
patent: 2573667 (1951-10-01), Tourneau
patent: 3972431 (1976-08-01), Fischer
patent: 4023848 (1977-05-01), Bennett

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