Manufacturer's third hand vice

Details Manufacturer's third hand vice Manufacturer's third hand vice

1994-01-18

1994-10-04

Watson, Robert C.

Work holders

Relatively movable jaws

Means to actuate jaw

269257, B25B 100

Patent

active

053519442

ABSTRACT:
An apparatus for clamping and holding objects, on which work is to be performed, that can be operated by downward pressure of the workman's foot. The apparatus consists essentially of two jaws in a horizontally adjacent position. The lower jaw is rigidly fixed. The upper jaw is pulled down against the lower jaw by a vertical bar that is affixed to the upper jaw. The downward force is supplied by two springs. The spring force may be overcome by exerting foot pressure downward against a lever which is pivotally affixed to the vertical bar and is pined at its mid section to a rigid bracket.

REFERENCES:
patent: 1587181 (1926-06-01), Pomeroy et al.
patent: 2712769 (1955-07-01), Prescott
patent: 4123047 (1978-10-01), Koht et al.
patent: 4848760 (1989-07-01), Blankenship et al.

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