Lever-actuated tongs

Details Lever-actuated tongs Lever-actuated tongs

1984-01-16

1985-10-08

Crane, Daniel C.

Metal deforming

By tool-couple embodying nonplanar tool-face

With complementary tool-faces

81416, 30193, B21D 706

Patent

active

045452342

ABSTRACT:
A roller is mounted on a pivot pin connecting two operating handles. In operation, two further rolls or rollers mounted on two further pivot pins, each connecting a respective jaw lever to one of the operating handles, bear on this roller. The jaw levers pivot about fulcrum pins and are provided with closing jaws for closing a clamping seal used to join the ends of a packing ligature or band. The rollers relieve the pivots of load, so that the tongs containing the jaw levers are suited to the transmission of elevated forces.

REFERENCES:
patent: 2948962 (1960-08-01), Manning
patent: 3182485 (1965-05-01), Sund
patent: 4080820 (1978-03-01), Allen
patent: 4275584 (1981-06-01), Kruschel

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