Sewing machine with a workpiece alignment device

Details Sewing machine with a workpiece alignment device Sewing machine with a workpiece alignment device

1987-06-16

1988-02-02

Hunter, H. Hampton

Sewing

Work manipulating

Guides

112221, 112309, D05B 3510, D05B 2404, D05B 6930

Patent

active

047222905

ABSTRACT:
A sewing machine with a workpiece alignment device for the automatic stitching of workpieces with convex edge sections has a stepwise feed mechanism and an alignment tool operating alternately with the feed mechanism. The tool rotates the workpiece around the axis of the needle when the needle pierces the material, and holds it resting against a guide rule. The alignment tool is driven by drive mechanisms positively connected to one another, because of which the sewing machine can be operated at a relatively high speed.

REFERENCES:
patent: 2791483 (1961-02-01), Cordier
patent: 3598070 (1971-08-01), Rosenberg
patent: 3799087 (1974-03-01), Beamish et al.
patent: 3970017 (1976-07-01), Babson et al.

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