Geometrical instruments – Gauge – Collocating
Patent
1991-04-04
1992-06-16
Cuchlinski, Jr., William A.
Geometrical instruments
Gauge
Collocating
33202, 834713, 30376, B27B 520, G01B 524
Patent
active
051215543
ABSTRACT:
An adjustable miter gage apparatus and method for making precision miter cut angles with conventional radial arm saws, table saws, band saws, router tables, and other woodworking machines. The miter gage apparatus utilizes a flat base or table top with a large radius arc thereon and adjustable gages located on the circumference of the arc. The apparatus acts as a large protractor and allows the cutting angle to be accurately adjusted relative to the actual angle at which the saw blade is initially positioned by the woodworking machine. The adjustable gages have set screws threadedly mounted therein for making fine adjustments and may be permanently or removably installed on the base or table top. The set screw threads and radius of the arc are related such that turning the set screw will increase or decrease the angle to within a fraction of a degree. A preliminary angle setting is made using the existing miter scale on the woodworking machine. A trial cut is made and measured with a protractor device and the correction angle is determined. The set screw of an adjustable gage is positioned in contact with the saw blade or the fence and is adjusted by turning the set screw to increase or decrease the angle. After the cut angle has been adjusted, an adjustable gage may be installed at the corrected angle location on the arc. Several gages may be permanently installed at commonly used angles, whereby subsequent precision cut angles are easily and quickly retrieved.
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patent: 4843728 (1989-07-01), Francis
patent: 4945799 (1990-08-01), Knetzer
patent: 4957024 (1990-09-01), Albrecht
patent: 5042542 (1991-08-01), Purviance
Cuchlinski Jr. William A.
Fulton C. W.
Roddy Kenneth A.
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