Hole sewing machine

Details Hole sewing machine Hole sewing machine

1983-01-26

1985-02-26

Feldbaum, Ronald

Sewing

Special machines

Buttonhole

112158B, 11212115, 11212112, D05B 300

Patent

active

045012075

ABSTRACT:
In a hole sewing machine of the type adapted to stitch a buttonhole or the like, an X-Y table member is operatively connected to a work support member upon which the material to be stitched is placed, motors are provided for driving the table along orthogonal X-Y axes and a further motor is provided for synchronously rotating the needle bar and looper stand of the sewing machine about the axis of the needle bar. A control device is provided for supply drive signals to the various motors in accordance with the predetermined buttonhole sewing program so that the buttonhole is stitched in accordance with the desired pattern by merely selecting a specific buttonhole sewing program.

REFERENCES:
patent: 2555095 (1951-03-01), Reece
patent: 4181083 (1980-01-01), Bajer et al.
patent: 4381720 (1983-05-01), Abrams

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