Inertial thread snubbing device for a sewing machine

Details Inertial thread snubbing device for a sewing machine Inertial thread snubbing device for a sewing machine

1980-03-07

1980-12-30

Hunter, H. Hampton

Sewing

Elements

Tensioning

D05B 4704

Patent

active

042416795

ABSTRACT:
A thread snubbing device for a sewing machine is provided with a cage which attaches to a needle clamp, and with a shoe of predetermined mass which is loosely confined by the cage wherein it is caused by inertia and engagement with the cage to be moved against a length of needle thread between the shoe and clamp to apply a snubbing action thereto during loop seizure and loop formation.

REFERENCES:
patent: 331026 (1885-11-01), Bigelow
patent: 765239 (1904-07-01), Hadley
patent: 908434 (1908-12-01), Woodward
patent: 1041597 (1912-10-01), Corey
patent: 1312799 (1919-08-01), Moffatt et al.
patent: 1460177 (1923-06-01), Ringe et al.
patent: 3496895 (1970-02-01), Ketterer

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