Stitch shortening and tacking assembly

Details Stitch shortening and tacking assembly Stitch shortening and tacking assembly

1977-09-23

1978-09-19

Schroeder, Werner H.

Sewing

Stitch forming

Blind stitch

112210, 112212, 112214, D05B 124, D05B 2722

Patent

active

041145470

ABSTRACT:
A stitch shortening and tacking assembly for use in a sewing machine is provided. The shortening and tacking assembly is particularly suited for use with a sewing machine wherein a fabric is advanced between a presser foot and a platen disposed in a first feeding position by a reciprocating feeder that is synchronized with respect to a rib and sewing needle. The sewing needle is synchronized with respect to the feeder and rib to stitch the fabric after the web has been advanced by the feeder. The platen is adapted to be displaced from the feed position to a stitch shortening position whereby the web is advanced through a shorter interval between sewing operations to thereby shorten the length of each stitch effected thereby. The platen is further adapted to be displaced from the stitch shortening position to a stitch tacking position whereby a portion of the platen is biased against the presser foot to thereby prevent the fabric from being advanced between sewing operations.

REFERENCES:
patent: 3011462 (1961-12-01), Ritter et al.
patent: 3064604 (1962-11-01), Moro
patent: 3411468 (1968-11-01), Roth
patent: 3677208 (1972-07-01), Fletcher et al.
patent: 3834334 (1974-09-01), Adams et al.

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