Spring biased presser foot

Details Spring biased presser foot Spring biased presser foot

1981-01-12

1983-11-29

Schroeder, Werner H.

Sewing

Elements

Presser devices

D05B 2900

Patent

active

044175337

ABSTRACT:
A work presser device wherein a constant-force spring is employed for urging a presser bar downwardly, with substantially constant pressure, against a work piece. This constant pressure is exerted regardless of the axial movement of the presser bar owing to variation of the thickness of the work piece in the course of a sewing operation.

REFERENCES:
patent: 2016354 (1935-10-01), Workman
patent: 2629352 (1953-02-01), Paulsen
patent: 3089447 (1963-05-01), Shuman

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