Speed control apparatus for sewing machine

Details Speed control apparatus for sewing machine Speed control apparatus for sewing machine

1985-05-30

1987-03-10

Nerbun, Peter

Sewing

Elements

Starting or stopping

D05B 6918

Patent

active

046483390

ABSTRACT:
A sewing machine speed control apparatus enabling finer control of sewing machine rotational speed by providing speed instructive pulses to a clutch coil and a braking coil of the sewing machine within a pulse application period of an oscillator used to detect the actual rotational speed of the sewing machine. The speed instructive pulses are applied in accordance with a difference between actual and desired speeds; the difference is used to look up stored values corresponding to desired periods of application of speed instructive pulses.

REFERENCES:
patent: 3761790 (1973-09-01), Daab
patent: 4080914 (1978-03-01), Ishida et al.
patent: 4195585 (1980-04-01), Takahashi et al.
patent: 4473020 (1984-09-01), Neki et al.

Affiliated with

Also associated with

Rating

Speed control apparatus for sewing machine does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Speed control apparatus for sewing machine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Speed control apparatus for sewing machine will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1015964