Visual aid improvement to a presser device for sewing buttonhole

Details Visual aid improvement to a presser device for sewing buttonhole Visual aid improvement to a presser device for sewing buttonhole

1979-04-30

1980-04-15

Jaudon, Henry

Sewing

Special machines

Buttonhole

112235, D05B 324

Patent

active

041978030

ABSTRACT:
An improved visual aid mechanism for a presser device for facilitating the making of buttonholes. The mechanism will sense and indicate to the operator the approaching end of the first leg of a buttonhole being sewn whose length has been preset by the operator. This invention utilizes flexible fingers which are substantially deflected by an adjustable stop member to provide a magnified visual indication. Thus the operator may stop the sewing operation very precisely resulting in buttonholes of consistently uniform length and quality.

REFERENCES:
patent: 3113537 (1963-12-01), Bono
patent: 3137254 (1964-06-01), Enos et al.
patent: 3656443 (1972-04-01), Ross
patent: 3835798 (1974-09-01), Fresard et al.
patent: 3877403 (1975-04-01), Ketterer
patent: 3949687 (1976-04-01), Julien
patent: 4091752 (1978-05-01), Odermann

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