Work presence controller

Details Work presence controller Work presence controller

1984-11-02

1987-01-20

Meister, James M.

Cutting

Interrelated tool actuating means and means to actuate work...

Work clamp

83390, 83397, 83490, 83DIG1, 83399, B26D 542

Patent

active

046372890

ABSTRACT:
A saw wherein an arbor is mounted to drive a circular saw blade from below a flat work surface upward through a slot in the work surface to sever any work piece suitably disposed on the work surface. A guard/clamp above the work surface is lowered to engage and clamp each such work piece on the work surface before the saw blade begins its ascent. A sensor is mounted on the guard/clamp to sense the presence of a work piece at a location immediately on the work piece feed side of the saw blade and adjacent a saw fence. The sensor prevents operation of the saw when the sensor fails to establish the presence of a work piece on the work surface.

REFERENCES:
patent: 2171541 (1939-09-01), Crouch
patent: 2821251 (1958-01-01), Borke
patent: 3199554 (1965-08-01), Thedick
patent: 3331408 (1967-07-01), Condit
patent: 3554067 (1971-01-01), Scutella
patent: 3946631 (1976-03-01), Malm
patent: 4033218 (1977-07-01), Donatelle
patent: 4269242 (1981-05-01), Smith et al.
patent: 4455904 (1984-06-01), Havner et al.

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