Stitch interrupting device for sewing machines

Details Stitch interrupting device for sewing machines Stitch interrupting device for sewing machines

1982-10-04

1985-04-30

Reynolds, Wm. Carter

Sewing

Stitch forming

Multiple needle

112167, 112DIG3, D05B 110, D05B 6928

Patent

active

045136734

ABSTRACT:
A device for interrupting the formation of stitches in a sewing machine having at least two needles and a looper for each needle which are arranged to be actuated in tandem. The needles are phased to perform their functions simultaneously with a first having an elongated thread opening, and the second a conventional opening. The first needles' looper is slightly elevated and if no lack of phasing exists between the needles and their loopers, the elevated looper will cooperate with its needle adjacent the upper end of the thread hole and the other looper cooperates with its needle in a conventional manner. Should there be a lack of phasing, the elevated looper cooperates with its needle midway between the length of the thread hole which causes the other looper to pass beneath the hole of its needle thus interrupting the formation of stitches by the latter needle.

REFERENCES:
patent: 2292724 (1942-08-01), Thompson et al.

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