Bobbin spool

Details Bobbin spool Bobbin spool

1978-04-28

1980-01-22

Mautz, George F.

Winding, tensioning, or guiding

Bobbin or spool

Resilient

2421184, 2421187, 2421251, 242159, B65H 7514, B65H 7528

Patent

active

041846524

ABSTRACT:
A bobbin spool for an automatic sewing machine wherein a predetermined length of thread is wound onto the spool for each sewing operation comprising a hub, spaced parallel flanges at opposite ends of the hub, one of said hubs constituting a turbine wheel by means of which the bobbin may be rotated at a high speed by means of a jet of air and a traction engendering element covering an arcuate portion of the hub.

REFERENCES:
patent: 2904280 (1959-09-01), Eckels et al.
patent: 3967795 (1976-07-01), Shindo et al.

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