Bight stop mechanism for sewing machines

Sewing – Work manipulating – Guides

Patent

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Details

112163, D05B 302

Patent

active

040489329

ABSTRACT:
The present disclosure relates to zig-zag sewing machines including means for controlling the bight stops in order to produce ornamental patterns. In particular, the disclosure relates to electronically controlled sewing machines having storage means for storing stitch information and wherein logic means are used to select and release stitch information in timed relation with the operation of the sewing machine. The disclosure of the invention has particular application in those sewing situations wherein it is desired to use more than one needle in a single needle holder of the needle bar which therefore necessitates a limitation on the magnitude of the jogging or swinging of the needle bar in order to accommodate the multiple needles in the aperture of the needle plate. In accordance with the disclosure of the present invention, whenever more than one needle is used switch means responsive to the presence of more than one needle automatically puts the machine into a multiple needle mode of operation.

REFERENCES:
patent: 3296987 (1967-01-01), Kawaguchi
patent: 3412700 (1968-11-01), Marforio
patent: 3872808 (1975-03-01), Wurst
patent: 3926133 (1975-12-01), Herron

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