Differential feed type sewing machine

Details Differential feed type sewing machine Differential feed type sewing machine

1983-04-14

1984-10-30

Schroeder, Werner H.

Sewing

Stitch forming

Feeding work material

112152, 112305, D05B 3508

Patent

active

044794495

ABSTRACT:
A sewing machine of the differential type which, in one stitching operation, gathers a first fabric material and sews a band to one side of said first fabric material and a second fabric material to the other side of the first fabric material. The throat plate of the sewing machine has a longitudinal groove disposed ahead of the sewing needle to guide the band underneath the fabric material being gathered by the gathering dog. No gathering dog is in register with the groove. The machine may include overlock stitching.

REFERENCES:
patent: 2125459 (1938-08-01), Pitts
patent: 2689538 (1954-09-01), Rickman
patent: 2723636 (1955-11-01), Galkin
patent: 2744481 (1956-05-01), Blittschan
patent: 3371630 (1968-03-01), Cash, Jr.
patent: 4063524 (1977-12-01), Ochiai
patent: 4377122 (1983-03-01), Boser et al.

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