Self compensating optoelectronic ply and edge detector for sewin

Details Self compensating optoelectronic ply and edge detector for sewin Self compensating optoelectronic ply and edge detector for sewin

1981-09-18

1983-07-05

Nerbun, Peter P.

Sewing

Elements

Starting or stopping

D05B 6926, D05B 6920

Patent

active

043912150

ABSTRACT:
A light sensing device for a sewing machine with a sensing circuit which automatically compensates for the work fabric being utilized so as to be able to detect a ply change event in any fabric without requiring an operator adjustment for the type of fabric being stitched upon. Being able to detect a ply change event without the necessity for adjustment also permits automatic operation of certain sewing machine components, further facilitating operation of the sewing machine.

REFERENCES:
patent: 3302600 (1967-02-01), Cheron
patent: 3924550 (1975-12-01), Boser et al.
patent: 4038931 (1977-08-01), Kosrow et al.
patent: 4160424 (1979-07-01), Newell
patent: 4359953 (1982-11-01), Martell et al.
Article "Today's Training Tool"--Mar. 1981, Bobbin Magazine--Chalmers.

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