Sewing machine

Sewing – Elements

Patent

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Details

112221, 112275, D05B 5500, D05B 6922

Patent

active

041008677

ABSTRACT:
An electrically operated chain stitch sewing maching having a cartridge carrying a spool of thread and a pre-threaded needle mounted in the side of the head, the needle being normally biased in a retracted position within the cartridge and being actuated by a crank arm provided with means for rendering an electrical switch inoperative until the needle is retracted into the cartridge. The bed of the machine is provided with a thread looping subassembly actuated by the needle.

REFERENCES:
patent: 3385247 (1968-05-01), Johnson et al.
patent: 3667412 (1972-06-01), Perla
patent: 3749039 (1973-07-01), Fritts

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