Apparatus for positioning the workholder of an automatic sewing

Details Apparatus for positioning the workholder of an automatic sewing Apparatus for positioning the workholder of an automatic sewing

1981-09-18

1984-07-03

Nerbun, Peter P.

Sewing

Special machines

Darning

D05B 2100

Patent

active

044572425

ABSTRACT:
An apparatus operable in cooperation with the logic circuitry of an automatic sewing machine for positioning a movable workholder in a predetermined position relative the sewing machine needle. The apparatus includes a workholder position sensor assembly and workholder direction sensor assembly operable in timed relation relative to one another and in positional synchronization with the movement of the workholder. Electrical circuitry is adapted to read the signals of both sensor assemblies and position the workholder at a predetermined location.

REFERENCES:
patent: 3830175 (1974-08-01), Levor
patent: 4133275 (1979-01-01), Herzer et al.

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