Automatic thread tension control device of sewing machine

Details Automatic thread tension control device of sewing machine Automatic thread tension control device of sewing machine

1979-06-05

1981-11-24

Feldbaum, Ronald

Sewing

Elements

Tensioning

112 59, D05B 4700, D05B 1500

Patent

active

043017576

ABSTRACT:
An electronic thread tension control device whereby electrical signals indicating the fabric thickness, the amount of fabric being fed, the needle's amplitude and the size of the thread to be used are transmitted to the control circuitry thereby producing the appropriate output signal that will adjust the tensioning means accordingly.

REFERENCES:
patent: 3190249 (1965-06-01), Gegauf
patent: 3856233 (1974-12-01), Thomas
patent: 4166423 (1979-09-01), Brienza et al.

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