Thread chain guiding device for overedge sewing machines

Details Thread chain guiding device for overedge sewing machines Thread chain guiding device for overedge sewing machines

1989-05-23

1991-01-15

Reynolds, Wm. Carter

Sewing

Stitch forming

Overseaming

112199, 112288, D05B 120, D05B 6500

Patent

active

049845268

ABSTRACT:
A thread chain guiding device provides a needle-thread-guide plate which extends underneath a throat plate by energizing a solenoid as needed. Thus, the needle-thread-guide plate pushes the needle threads twined around a lower looper outwardly away such that the thread chain is prevented from hanging on an inner chain-off finger when it is rotated counter clockwise. The needle-thread-guide plate is retracted during a normal stitching process by de-energizing the solenoid.

REFERENCES:
patent: 726310 (1903-04-01), Klemm
patent: 2778329 (1957-01-01), Howell et al.
patent: 3489115 (1970-01-01), Marforio
patent: 3867892 (1975-02-01), Ciecior et al.
patent: 4777892 (1988-10-01), Aida et al.

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