Sewing machine thread control

Details Sewing machine thread control Sewing machine thread control

1974-05-31

1976-02-24

Gilreath, Stanley N.

Winding, tensioning, or guiding

Strand tensioning device

Brake

112229, 2421298, B65H 5904, D05B 5714

Patent

active

039400891

ABSTRACT:
To control thread pull-off, particularly in high-speed industrial sewing machines, a rotatable element such as a roller pin is engaged with the bobbin, typically with the outside flange of the bobbin. The pin is rotated, upon spinning of the bobbin, and restrained from free rotation by a spring bearing against the pin. Preferably, the pin is formed with drum or bell-shaped ends, the spring being similar to a bobbin case retaining spring and bearing against a reduced diameter thereof, to provide for different diameters of engaging rotating surfaces between flange and pin, as well as between the flange engaging surface and the spring engaging pin.

REFERENCES:
patent: 380347 (1888-04-01), Phillips
patent: 2479710 (1949-08-01), Arnold
patent: 2517866 (1950-08-01), Glahn
patent: 3156324 (1964-11-01), Colbert
patent: 3486473 (1969-12-01), Ross

Affiliated with

Also associated with

Rating

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

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2077017