Ribbon cartridge with integral anti spool rotation device

Details Ribbon cartridge with integral anti spool rotation device Ribbon cartridge with integral anti spool rotation device

1978-12-26

1980-07-01

Mautz, George F.

Winding, tensioning, or guiding

Strand tensioning device

Tortuous course

242 712, 4002081, B41J 1500, B65H 7502

Patent

active

042102960

ABSTRACT:
Cartridges housing ribbon spools with a length of ribbon extending externally of the cartridge between exit and inlet openings in the cartridge are provided with an integral anti spool rotation device to prevent spool rotation as would allow inadvertent or accidental withdrawal of an undue length of ribbon externally of the cartridge. Incident to mounting the cartridge on a machine, the locking device is moved to a spool release position without detachment or separation from the cartridge for later movement to anti rotation position if removal of an unspent cartridge is required.

REFERENCES:
patent: 2401632 (1946-06-01), Greenleaf
patent: 3706426 (1972-12-01), Prahl
patent: 3807840 (1974-04-01), Cook et al.

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