Differential feed mechanism for sewing machines

Details Differential feed mechanism for sewing machines Differential feed mechanism for sewing machines

1982-05-14

1984-03-13

Schroeder, Werner H.

Sewing

Stitch forming

Feeding work material

D05B 2708

Patent

active

044360452

ABSTRACT:
A differential feed mechanism is provided for a high speed industrial sewing machine. The differential mechanism includes separate driving mechanisms for each of the two feed dogs mounted on separate feed bars, both mechanisms being driven from a common input shaft. Separate adjusting devices are provided for each of the feed dog driving mechanisms to adjust individually, rapidly and at will, the length of the horizontal feed stroke of each feed dog.

REFERENCES:
patent: 3382827 (1968-05-01), Von Hagen
patent: 3450079 (1969-06-01), Lukin
patent: 3611817 (1971-10-01), Smith

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