Machine vise

Details Machine vise Machine vise

1979-11-07

1980-09-09

Watson, Robert C.

Work holders

Relatively movable jaws

With means for 'hold-down' component of force

269250, B23Q 302

Patent

active

042213690

ABSTRACT:
A machine vise grasps a given work blank by causing a movable jaw to be moved toward a stationary jaw fixed in position on one end of the vise bed. When the work blank is grasped between the stationary jaw and the movable jaw and the clamping force of the movable jaw is increased, no bending stress is exerted upon the vise bed and a force causing the movable jaw to be directed to the surface of the slide for the movable jaw is applied thereto to thereby increase the force of adhesion of the movabe jaw to the vise bed, with the result that the work blank is prevented from rising off the vise bed, that the rigidity and structural strength of the vise as a whole are increased and that the jaws grasp the work blank therebetween in a state wherein the jaw plates of the jaws keep their postural angle relative to the surface of the slide for the movable jaw at a precise right angle at all times.

REFERENCES:
patent: 1405306 (1922-01-01), Martin
patent: 3312461 (1967-04-01), Copron

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