Sewing machine speed control circuit

Details Sewing machine speed control circuit Sewing machine speed control circuit

1979-05-29

1982-06-01

Nerbun, Peter P.

Sewing

Elements

Starting or stopping

318341, D05B 6918

Patent

active

043322085

ABSTRACT:
A sewing machine control circuit is disclosed in which acceleration or deceleration of the machine is effected by the operator in such a way as to gradually increase or decrease motor speed during periods of operator intervention and to maintain whatever speed exists at the time operator intervention ceases. Improved circuitry is utilized to perform these functions.

REFERENCES:
patent: 3217679 (1965-11-01), Novak
patent: 4014277 (1977-03-01), Morinaga
patent: 4052646 (1977-10-01), Massey et al.
patent: 4217841 (1980-08-01), Daido et al.

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