Bobbin thread tension device

Details Bobbin thread tension device Bobbin thread tension device

1979-12-06

1981-11-10

Reynolds, Wm. Carter

Sewing

Stitch forming

Revolving-hook type

112229, 112231, D05B 5714, D05B 5726

Patent

active

042991811

ABSTRACT:
A bobbin thread tensioning device on a bobbin case is provided with a pair of bobbin thread accepting members, one of which is biased toward the other by an adjustable spring. The thread accepting members are disposed relative to each other and with respect to a rotatable hook to assure seizure of the bobbin thread by the hook beak.

REFERENCES:
patent: 2098270 (1937-11-01), Wood
patent: 2488052 (1949-11-01), Casas Robert
patent: 2693565 (1972-09-01), Ketterer
patent: 2851977 (1958-09-01), Spaine

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