Belt drive material feed control apparatus for sewing machines

Details Belt drive material feed control apparatus for sewing machines Belt drive material feed control apparatus for sewing machines

1988-04-08

1989-03-21

Falik, Andrew M.

Sewing

Stitch forming

Feeding work material

112153, 112308, D05B 3510, D05B 304, D05B 2710

Patent

active

048133647

ABSTRACT:
For use with a sewing machine an attachment for guiding fabric in which use is made of a belt laterally displaced to the side of the feed dogs which is in contact with the fabric, and thus does not require to be descended thereagainst, and which also is oriented in the direction of sewing, wherein the speed at which the belt urges the fabric through the sewing station is controlled to be either slower or faster than the speed at which the fabric is urged through movement by the feed dogs, so that the relative difference between the speeds shifts the fabric in opposite directions laterally of the direction of sewing to thereby enable the sewing of varying curvatures in the edge of the fabric.

REFERENCES:
patent: 2290123 (1942-07-01), Wilfong
patent: 3417718 (1968-12-01), Anderson
patent: 4226197 (1980-10-01), Pollmeier
patent: 4423690 (1984-01-01), Willenbacher et al.
patent: 4493277 (1985-01-01), Sanvito
patent: 4498407 (1985-02-01), Landwehr et al.

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