Thread guiding and hold-down pawl for bobbin winding mechanism o

Details Thread guiding and hold-down pawl for bobbin winding mechanism o Thread guiding and hold-down pawl for bobbin winding mechanism o

1981-05-20

1983-05-31

Reynolds, Wm. Carter

Sewing

Stitch forming

Revolving-hook type

112279, D05B 5900

Patent

active

043855741

ABSTRACT:
A control arm for bobbin winding mechanism in a lockstitch sewing machine is provided with a pawl which serves both to guide needle thread into a thread entering slot for a tensioning device on a bobbin case, and to hold an arm of the tensioning device in a position effective to prevent the thread from being pulled out of the slot.

REFERENCES:
patent: 2299524 (1942-10-01), Chason
patent: 3407760 (1968-10-01), Ketterer
patent: 3693565 (1972-09-01), Ketterer
patent: 3693566 (1972-09-01), Ketterer
patent: 4326474 (1982-04-01), Zylbert

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