Sewing machine loop spreading mechanism

Details Sewing machine loop spreading mechanism Sewing machine loop spreading mechanism

1983-01-07

1984-11-06

Reynolds, Wm. Carter

Sewing

Stitch forming

Chain or double chain

112165, 112227, D05B 5702, D05B 6100

Patent

active

044805624

ABSTRACT:
A mechanism for seizing and holding a thread, particularly the looper thread, of a chainstitch sewing machine to insure needle penetration of the thread triangle thereby assuring enchaining of the needle thread with the looper thread. Such mechanism includes an oscillatable thread spreader which transversely moves across the looper's endwise path of travel. The spreader motion being in timed relation with the stitch forming instrumentalities such that its effectively travel extends between the looper eye and the reciprocal path of the needle arranged closest to the looper eye when the looper is at its extreme loop seizing position.

REFERENCES:
patent: 668539 (1901-02-01), Onderdonk
patent: 961207 (1910-06-01), Chatfield
patent: 1444633 (1923-02-01), Moffatt
patent: 1702792 (1929-02-01), Moffatt
patent: 1825513 (1931-09-01), Ericsson
patent: 1995078 (1935-03-01), Rubel
patent: 3065717 (1962-11-01), Reimer

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