Sewing machine with improved non-ravel seaming controller

Details Sewing machine with improved non-ravel seaming controller Sewing machine with improved non-ravel seaming controller

1976-09-22

1978-03-28

Schroeder, Werner H.

Sewing

Elements

Starting or stopping

112300, 112210, D05B 6918, D05B 6920

Patent

active

040809145

ABSTRACT:
In a control circuit for controlling the rotating speed of a clutch and brake motor of a sewing machine capable of performing non-ravel seaming, an improved non-ravel seaming controller for enabling non-ravel seaming during a certain number of seams at the start of sewing and for generating a medium speed signal at a predetermined level during a certain number of seams at the end of sewing to enable non-ravel seaming at such time.

REFERENCES:
patent: 3074632 (1963-01-01), Braun et al.
patent: 3688714 (1972-09-01), Makihara et al.
patent: 3761790 (1973-09-01), Daab
patent: 3827381 (1974-08-01), Baanstra et al.
patent: 3977338 (1976-08-01), Wurst et al.

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