Electronic sewing machine with pattern elongation system

Details Electronic sewing machine with pattern elongation system Electronic sewing machine with pattern elongation system

1981-07-06

1983-01-18

Nerbun, Peter P.

Sewing

Work manipulating

Guides

D05B 302

Patent

active

043686826

ABSTRACT:
A pattern elongation system in an electronic sewing machine includes a number of switches on the housing of the machine and a rotatable knob for actuating a pattern selecting circuit of the pattern elongation system. The pattern elongation system further includes a memory for storing stitch control data and a discriminating signal, a pulse generator operated in synchronism with rotation of the upper drive shaft of the machine and producing a timing pulse, an oscillator cooperating with the pulse generator to address the memory per stitch of the pattern, and a comparator which compares the elongation signal and the discriminating signals to cause the oscillator to determine the addresses for the stitches of pattern.

REFERENCES:
patent: 4210088 (1980-07-01), Takenoya et al.
patent: 4242974 (1981-01-01), Beckerman
patent: 4259913 (1981-07-01), Takenoya et al.
patent: 4261271 (1981-04-01), Makabe et al.
patent: 4280424 (1981-07-01), Carbonato et al.

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