Looper-cam shifting arrangement for a sewing machine

Details Looper-cam shifting arrangement for a sewing machine Looper-cam shifting arrangement for a sewing machine

1984-10-12

1985-08-20

Reynolds, Wm. Carter

Sewing

Stitch forming

Chain or double chain

112112, 112169, 112311, D05B 5702, D05B 9702, D05B 9710

Patent

active

045357110

ABSTRACT:
A hand operated sewing machine with opposing loop seizing points for forming chain stitches. A work feeding plate reciprocates with a plate member about a pivot. A flexible upstanding portion at one end of an arm is biassed by the moving plate member causing the other arm end to bias a cam affixed to the loop seizing points. This bias determines the cam path taken by a drive pin that provides motion to the loop seizing points.

REFERENCES:
patent: 3165080 (1965-01-01), Castelletti
patent: 4411210 (1983-10-01), Killinger
patent: 4463695 (1984-08-01), Killinger

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