Work holders – Relatively movable jaws – Means for direct manual adjustment of jaw
Patent
1979-10-29
1981-08-04
Yost, Frank T.
Work holders
Relatively movable jaws
Means for direct manual adjustment of jaw
83466, 83581, 83766, 269295, B25B 102, B25B 510
Patent
active
042818273
ABSTRACT:
An improved miter box allows crown molding to be cut in the same orientation in which it will be installed to assure a perfect mitered joint. The miter box holds a longitudinal workpiece so that it can be cut by a cutting apparatus at a first angle measured in a plane parallel to the longitudinal axis of the workpiece and at a second angle measured in a plane perpendicular to the longitudinal axis of the workpiece. The miter box has a base, a backboard mounted perpendicularly on one edge of the base, a cutting apparatus guide for guiding the cutting apparatus to cut the workpiece at the first angle, a first wedge apparatus mounted on the backboard having a lower surface at the second angle to the backboard, and a second wedge apparatus mounted on the base having an upper surface at the second angle to the backboard. The second wedge apparatus is movable toward and away from the backboard so that the workpiece may be positioned between the first and second wedge apparatus and is engageable to the backboard to clamp the workpiece between the first and second wedge apparatus when the workpiece is being cut.
REFERENCES:
patent: 363119 (1887-05-01), Criswell
patent: 511935 (1894-01-01), Criswell
patent: 688879 (1901-12-01), Otis
patent: 889026 (1908-05-01), Magrath
patent: 976296 (1910-11-01), Robbins
patent: 2708466 (1955-05-01), Stoll
patent: 2746125 (1956-05-01), Cuny
Horwath Gary W.
Yost Frank T.
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