Electronic pattern control sewing machine

Details Electronic pattern control sewing machine Electronic pattern control sewing machine

1979-05-21

1981-04-07

Nerbun, Peter P.

Sewing

Work manipulating

Guides

D05B 302

Patent

active

042599130

ABSTRACT:
A sewing machine has stitch forming instrumentalities synchronously operated with the upper drive shaft to produce a variety of stitch patterns using a plurality of manual pattern selecting switches to produce pattern selecting signals specific to the pattern selected in conjunction with a pulse generator which produces a pulse per rotation of the upper shaft which pulse triggers a free-running pulse from an oscillator which are then progressively registered by a counter that addresses a static memory to produce a signal for stopping the operation of the oscillator, and control means for selectively applying the counter contents to the stitch forming instrumentalities.

REFERENCES:
patent: 4145982 (1979-03-01), Kume et al.

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