Sewing machine bobbin and mini-spool rotatably mounted thereon

Details Sewing machine bobbin and mini-spool rotatably mounted thereon Sewing machine bobbin and mini-spool rotatably mounted thereon

1990-10-19

1992-01-07

Nerbun, Peter

Winding, tensioning, or guiding

Bobbin or spool

Double-headed spool

112273, B65H 7514

Patent

active

050783319

ABSTRACT:
A sewing machine bobbin includes a mini-spool rotatably mounted on the bobbin for receiving a predetermined length at the inner end of the thread such that when the bobbin stops rotating, the mini-spool may continue to rotate to pay out a part of a predetermined length of thread in order to finish a stitching operation.

REFERENCES:
patent: 2340574 (1944-02-01), Ashworth
patent: 3991692 (1976-11-01), Papajewski et al.
patent: 4824041 (1989-04-01), Myers
patent: 4934292 (1990-06-01), Mardix et al.

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