Tong arm assembly

Details Tong arm assembly Tong arm assembly

1981-07-13

1983-11-01

Spar, Robert J.

Material or article handling

Vertically swinging load support

Grab

74519, 414738, B66C 2300

Patent

active

044127782

ABSTRACT:
A tong arm assembly for carrying and moving a tong head arcuately between two horizontally spaced positions includes a housing having the tong head pivotally connected to one end; the other end of the housing being rotatably mounted to a fixed arm stud. A pair of levers located within the housing have their first ends pivotally connected to an extension of the stud and their second ends pivotally connected to the tong head. As the housing is arcuately moved, the levers maintain the tong head steady and in its proper orientation.

REFERENCES:
patent: 1284776 (1918-11-01), Richard
patent: 1766573 (1930-06-01), Westin
patent: 1766574 (1930-06-01), Westin et al.
patent: 1835579 (1931-12-01), Westin
patent: 3703968 (1972-11-01), Uhrich et al.
"Industrial Robot System", ASEA, Information YB, 110-302E, YFB, Sep. 1976, Reg. 6704, 758, ed. 3.

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