Stitch pattern forming control in a sewing machine

Details Stitch pattern forming control in a sewing machine Stitch pattern forming control in a sewing machine

1977-02-07

1978-09-26

Nerbun, Peter

Sewing

Work manipulating

Guides

D05B 302

Patent

active

041161440

ABSTRACT:
In a sewing machine including a static memory for storing digital information related to the positional coordinates for each stitch of a predetermined stitch pattern, a dynamic memory such as a shift register is provided for temporarily storing the digital information derived from the static memory. Output signals of the dynamic memory are applied to a needle positioning mechanism and a work feed mechanism through driving means. In a preferred form, input means are provided for modifying the digital information temporarily stored in the dynamic memory, thereby modifying the stitch pattern.

REFERENCES:
patent: 3701888 (1972-10-01), McDaniel
patent: 3825731 (1974-07-01), Kobayashi et al.
patent: 3872808 (1975-03-01), Wurst
patent: 3931615 (1976-01-01), Oliver
patent: 3982491 (1976-09-01), Herzer et al.
patent: 4025838 (1977-05-01), Watanabe

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