Work holders – Relatively movable jaws – With means for 'hold-down' component of force
Patent
1979-01-18
1981-01-06
Watson, Robert C.
Work holders
Relatively movable jaws
With means for 'hold-down' component of force
269195, 269902, B23Q 304
Patent
active
042432138
ABSTRACT:
The invention concerns an adjustable precision grinding and machinist vise which has a novel mechanism for precisely clamping metal pieces, tools, and other articles between a movable jaw and a stationary jaw. The vise is made such that it can be mounted on larger machines such as lathes, drills, milling machines, surface grinders and the like. The device employs a series of notches in the base as a guide means to stabilize clamping. A pin engages, at its lower end, a guide with opposite flanges which guide also has a central wedge with an arcuate load bearing surface. The pin extends through a rotatable clamp disposed within an angling shoulder on the movable jaw. The pin is disposed through the movable jaw and into a chamber in the base for engagement in the guide means to thereby insure precise positioning. Threadably tightening the pin into the guide snugs either the arcuate upper surface of the wedge or the arcuate upper surface of the flanges, or both into engagement with an upper surface of the chamber in the base. The rotatable clamp and wedge (as well as flanges) allow rotation such that the movable jaw moves toward the stationary jaw of the vise upon tightening.
REFERENCES:
patent: 2760535 (1956-08-01), Mertz
patent: 2889757 (1959-06-01), Cole
patent: 2948172 (1960-08-01), Sloboda et al.
patent: 2992665 (1961-07-01), Mertz
patent: 4078782 (1978-03-01), Carlson
patent: 4138100 (1979-02-01), Krummenacher
VanOphem Remy J.
Watson Robert C.
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