Looper control apparatus for sewing machines

Details Looper control apparatus for sewing machines Looper control apparatus for sewing machines

1979-06-06

1980-09-02

Feldbaum, Ronald

Sewing

Stitch forming

Chain or double chain

D05B 106, D05B 110

Patent

active

042201020

ABSTRACT:
A looper control apparatus for sewing machines which are adapted to form seams of double chain stitches both in a forwardly and reverse direction of sewing. The apparatus includes first and second driving devices for effecting travel of the looper in an elliptical pathway while sewing in a forwardly direction. A disconnecting mechanism is effective upon a selection to sew in a reverse direction in deactivating the second driving device so that the looper is actuated only by the first driving device which causes it to travel in a rectilinear pathway on one side only of the machine's needle.

REFERENCES:
patent: 3301207 (1967-01-01), Reeber et al.
patent: 3460497 (1969-08-01), Orth et al.

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