Force amplifying arrangement for sewing machine pushbutton contr

Details Force amplifying arrangement for sewing machine pushbutton contr Force amplifying arrangement for sewing machine pushbutton contr

1984-05-29

1984-12-11

Nerbun, Peter

Sewing

Work manipulating

Guides

D05B 302

Patent

active

044871414

ABSTRACT:
A sewing machine pushbutton control is provided in a floating extension with a toggle which assists the movement of a plurality of cam followers into operative engagement with buttonhole controlling cams and actuating mechanism for a needle bar and feed regulator.

REFERENCES:
patent: 3217677 (1965-11-01), Eguchi
patent: 3279402 (1966-10-01), Eguchi
patent: 4297956 (1981-11-01), Meier
patent: 4441440 (1984-04-01), Weisz
patent: 4453478 (1984-06-01), Weisz

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