Automatic guiding method for workpiece in sewing machine

Details Automatic guiding method for workpiece in sewing machine Automatic guiding method for workpiece in sewing machine

1977-02-25

1979-07-03

Hunter, H. Hampton

Sewing

Elements

Frames

11212112, 112153, 112306, D05B 2100, D05B 3510

Patent

active

041596870

ABSTRACT:
An automatic guiding method and device for work piece in a sewing machine, in which whether or not the side edge of a work piece is in a proper position or a control position, or biased in a direction away from the control position, is detected upstream of a stitching point. When the side edge of a work piece is biased in a direction away from the control position, the work piece is drawn back to the control position. The side edge of the work piece is restricted from being biased past the control position beyond an allowable amount.

REFERENCES:
patent: 3609373 (1971-09-01), Desai et al.
patent: 3722441 (1973-03-01), Kitchener et al.
patent: 3889614 (1975-06-01), Nicolay et al.
patent: 3903820 (1975-09-01), Kleinschmidt et al.

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