Sewing machine presser foot lifting apparatus

Details Sewing machine presser foot lifting apparatus Sewing machine presser foot lifting apparatus

1986-06-18

1987-12-01

Schroeder, Werner H.

Sewing

Elements

Presser devices

D05B 2900

Patent

active

047096446

ABSTRACT:
An apparatus for lifting the presser foot of a sewing machine prevents the bar guide bracket from rotating outward even when the presser foot is unintentionally raised due to a thick workpiece. As an additional safety interlock, the presser bar guide bracket is prevented from dropping down when the presser foot is rotated to provide space for changing the needle or setting the thread.

REFERENCES:
patent: 2558010 (1951-06-01), Sporney
patent: 2836137 (1958-05-01), Ayres
patent: 3777685 (1973-12-01), Baruffa
patent: 4436043 (1984-03-01), Cantada

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