Stock sensing device

Details Stock sensing device Stock sensing device

1974-09-16

1976-09-21

Scott, James R.

Electricity: circuit makers and breakers

Special application

Stationary feeler detects transient object

200 6158R, H01H 316

Patent

active

039820858

ABSTRACT:
An apparatus for sensing sufficient chucking stock in a rotating work-holding chuck having a self-contained circular plate assembly adapted to the face of the work-holding chuck, wherein a clearance bore is provided through the plate assembly to permit passage of machining stock and a radially movable indicator pin is provided within the plate assembly to detect the presence of machining stock within the clearance bore. The radially movable indicator pin will urge a trip plunger out of the circumferential surface of the plate assembly when no stock is present, and a limit switch will be tripped by the trip plunger to signal the absence of chucking stock.

REFERENCES:
patent: 3187128 (1965-06-01), Hammer
patent: 3424883 (1969-01-01), Heskett
patent: 3761654 (1973-09-01), Davis

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