Cartridge for correction media or tacky tape with a wrap spring

Details Cartridge for correction media or tacky tape with a wrap spring Cartridge for correction media or tacky tape with a wrap spring

1980-07-03

1982-09-21

Wright, Jr., Ernest T.

Typewriting machines

Including interposed inking device for record-medium

Package for ribbon facilitating mounting of ribbon on...

400234, 400696, B41J 3314

Patent

active

043504531

ABSTRACT:
A typewriter correction tape cartridge for holding and feeding correction tape for a correcting typewriter is improved by the addition of a beam spring cantilever supported such that one end of the beam spring wipes the correction tape onto the takeup spool. This will act to eliminate bubbles, wrinkles and crimps in the tape as it is placed in a new convolution on the spool and will thus reduce the outside diameter of the ultimate disc of used tape. The advantage of this spring is that a reduced size cartridge may be used while utilizing the entire volume of tape supplied on the supply side of the cartridge and, secondly, a more reliable takeup is accomplished due to the elimination of irregularities in the takeup disc. Where space considerations dictate that the spring be bent back sufficiently to accommodate a full spool without contacting the disc of ribbon accumulated on the takeup spool, the cross section of the spring, at a point near the anchor point, may be reduced by notching to provide a stress concentrated flex point and allow the spring member to still perform its function without premature engagement with the disc at a point other than at the wiper end.

REFERENCES:
patent: 2118896 (1938-05-01), Pearlman et al.
patent: 3111281 (1963-11-01), Sinkewitsch
patent: 3356202 (1967-12-01), Goff, Jr.
patent: 3513957 (1970-05-01), Ricciardi et al.
patent: 3601654 (1971-08-01), Long et al.
patent: 3632052 (1972-01-01), Read
patent: 3833185 (1972-09-01), Talavera
patent: 3889310 (1975-06-01), Barouh et al.
patent: 3889795 (1975-06-01), Garberi et al.
patent: 3915409 (1975-10-01), Satou
patent: 4013160 (1977-03-01), Colecchi et al.
patent: 4030685 (1977-06-01), Suzuki et al.
patent: 4147439 (1979-04-01), Colecchi

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