Residual thread chain back tacking device for overlock stitch ma

Details Residual thread chain back tacking device for overlock stitch ma Residual thread chain back tacking device for overlock stitch ma

1987-04-01

1988-08-16

Nerbun, Peter

Sewing

Elements

Thread cutting, severing or breaking

112288, 112DIG1, D05B 6506

Patent

active

047635908

ABSTRACT:
A residual thread chain back tacking device for stitching a residual thread chain in the proper position of a succeeding sewn cloth material has a thread chain cutting device which initially cuts most of the thread chain off, and then blows the remaining thread chain in the back tacking direction and horizontally. A thread chain suction pipe moves adjacent the back tacking position and sucks the remainder of the thread chain thereinto and holds it by means of a thread chain press cylinder while back tacking is completed. An air nozzle then blows the remaining thread chain against a cutter, and the suction in the thread chain suction pipe sucks the cut-off end away.

REFERENCES:
patent: 4478163 (1984-10-01), Keeton
patent: 4644884 (1987-02-01), Tatsumi
patent: 4672902 (1987-06-01), Michaels

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