Electronic control of needle thread in a sewing machine

Details Electronic control of needle thread in a sewing machine Electronic control of needle thread in a sewing machine

1979-07-05

1980-08-05

Nerbun, Peter P.

Sewing

Elements

Thread sensing

112241, 112255, 112302, D05B 4900, D05B 4704

Patent

active

042156416

ABSTRACT:
A sewing machine is provided with an actuator controlled thread take-up lever. A microprocessor is programmed to provide signals for controlling the actuator to provide a system wherein the interaction of the needle, the needle thread take-up and needle thread tension are optimally controlled. A thread metering mechanism, also under microprocessor control, is included in the system.

REFERENCES:
patent: 2584013 (1952-01-01), Hagquist
patent: 4166423 (1979-09-01), Brienza et al.

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