Control device for use in sewing buttonholes

Sewing – Special machines – Buttonhole

Patent

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Details

D05B 324, D05B 306

Patent

active

041966805

ABSTRACT:
A buttonhole controlling device for use in causing a sewing machine to form a buttonhole of a selected length, and including means for effecting a reversal in the direction in which material is fed under a sewing needle as required for the formation of a final leg of the buttonhole, is provided with an adjustable stop enabling an operator to precisely define the end position of the final leg and so assure closure of the buttonhole without overlap.

REFERENCES:
patent: 3113537 (1963-12-01), Bono
patent: 3117542 (1964-01-01), Schenkengel
patent: 3131658 (1964-05-01), Yanagibayashi et al.
patent: 3656443 (1972-04-01), Ross
patent: 3841246 (1974-10-01), Casner et al.
patent: 3877403 (1975-04-01), Ketterer
patent: 4056070 (1977-11-01), Haut
patent: 4091752 (1978-05-01), Odermann

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