Spool holder for thread spools

Details Spool holder for thread spools Spool holder for thread spools

1993-11-29

1995-01-10

Gilreath, Stanley N.

Winding, tensioning, or guiding

Support for a strand material holder

For bobbins

2421311, B65H 4906, B65H 6704

Patent

active

053799569

ABSTRACT:
A spool holder having a carrier arm (7) can carry thread spools having cylindrical or conical cores (3). This arm has a contact surface (8) for the core (3) and at the distal end thereof, an angled surface (10). This angled surface diverges at the free end of the carrier arm 7. Carrier arm 7 also has a freely hanging lever(11, 13) hinged about its upper end. The lever has such a length that when the core face (4) rides on the inclined surface (10), the lever contacts the core wall. This gives rise to a secure clamping of the core during use, coupled with an automatic freeing of the empty core when the carrier arm downwardly tips.

REFERENCES:
patent: 2013770 (1935-09-01), Stein et al.
patent: 2615652 (1952-10-01), Johnson
patent: 2632612 (1953-03-01), Stange
patent: 3140840 (1964-07-01), Hunsinger et al.
patent: 3460689 (1969-08-01), Furst
patent: 3858827 (1975-01-01), Glassbrook
patent: 4552321 (1985-11-01), Raeckelboom
patent: 4728055 (1988-03-01), Wright, Jr. et al.
patent: 5060884 (1991-10-01), Rapp
patent: 5203518 (1993-04-01), Morgan

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