Interlock for buttonhole sewing presser device

Details Interlock for buttonhole sewing presser device Interlock for buttonhole sewing presser device

1977-07-07

1978-06-27

Hunter, H. Hampton

Sewing

Special machines

Buttonhole

D05B 324

Patent

active

040968111

ABSTRACT:
An interlock between the work engaging presser foot and the work engaging shoe of a buttonhole sewing presser device which is effective to prevent travel of the work engaging shoe when the presser foot is raised for work insertion. In addition a latch is provided effective to prevent accidental disengagement of the interlock when the buttonhole sewing presser device tilts after the presser foot has been raised.

REFERENCES:
patent: 3113537 (1963-12-01), Bono
patent: 3656443 (1972-04-01), Ross
patent: 3877403 (1975-04-01), Kettener

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