Buttonhole paddle switch position sensing arrangement in a sewin

Details Buttonhole paddle switch position sensing arrangement in a sewin Buttonhole paddle switch position sensing arrangement in a sewin

1981-08-07

1983-02-08

Nerbun, Peter P.

Sewing

Work manipulating

Guides

112158E, 112277, D05B 306, D05B 302

Patent

active

043722318

ABSTRACT:
An electronically controlled multiple pattern sewing machine is provided with an arrangement which senses when the buttonhole paddle and buttonhole presser foot are not properly positioned at the time a buttonhole pattern is selected to be sewn. Under these circumstances, an alarm is activated and stitches are not formed even though the operator may attempt to sew.

REFERENCES:
patent: Re29972 (1979-04-01), Herr et al.
patent: 4075961 (1978-02-01), Harris
patent: 4159685 (1979-07-01), Wurst et al.
patent: 4248167 (1981-02-01), Reinert
patent: 4301755 (1981-11-01), Kato et al.

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