Cutting guide attachment for power tools

Details Cutting guide attachment for power tools Cutting guide attachment for power tools

1978-06-19

1981-01-13

Schran, Donald R.

Cutting

With means to convey work relative to tool station

With work-constraining means on work conveyer

83439, 83802, 83733, B27B 1304, B23Q 2700, B23D 5306

Patent

active

042442532

ABSTRACT:
An attachment for cutting machine tools, such as band saws, spindle-shapers, sanders and the like, controlling the feed path of the workpiece to the cutting tool to form desired workpiece contours, such as circles, arcs and the like, has a grooved track bar easily locked on and removed from the machine bed or table carrying a slide in the groove which has a workpiece centering pivot pin projecting therefrom. A workpiece is either directly pivoted on the pin or secured to a templet pivoted on the pin and is rotated about its pivot support against the cutting tool. The slide may be locked in the groove at a selected distance from the tool, may be pushed against a stop at a selected position in the groove or may be shifted by a cam to control the feed path of the workpiece for forming desired contours. Circles of selected diameters, elipses of selected minor and major radii, heart shapes, four leaf clover shapes and the like are easily developed.

REFERENCES:
patent: 2157310 (1939-05-01), Ward
patent: 2535673 (1950-12-01), Forbes
patent: 2720897 (1955-10-01), Kairath
patent: 2766784 (1956-10-01), Antczak
patent: 3764126 (1973-10-01), Arenas
patent: 4027566 (1977-06-01), Harrill
patent: 4047458 (1977-09-01), Hall
patent: 4074600 (1978-02-01), Raphael

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