Typewriting machines – Including interposed inking device for record-medium – Ribbon-feeding mechanism
Patent
1979-03-19
1981-04-28
Pieprz, William
Typewriting machines
Including interposed inking device for record-medium
Ribbon-feeding mechanism
400234, 400208, 242192, 242200, B41J 3110, B41J 3324, B41J 3340, B41J 3308
Patent
active
042642248
ABSTRACT:
In order to maintain constant tension on a relatively long expanse of ribbon stretched along the carrier path in impact printer apparatus having off-the-carrier ribbon drive and feed, apparatus is provided for driving a first and a second reel in forward and reverse directions, each reel being adapted to support a portion of an inventory of a ribbon web running along said carrier path from one of said reels to the other at a constant speed differential between the portion of the web being taken up on one of the reels and the portion of the web being supplied on the other of said reels irrespective of the drive direction which comprises a first inelastic drive belt for peripherally non-slip driving the web portion on the first reel and a second inelastic drive belt for peripherally non-slip driving the web portion on the second reel. A first drive means provided for selectively engaging and driving the first and second belts in the forward direction wherein the first reel takes up the ribbon; in this case, the second drive belt is driven at a speed slower than the first drive belt wherein the ribbon between the reels is maintained under a constant strain. Second drive means to provide for selectively engaging and driving the first and second belts in the reverse direction wherein the second reel takes up the web; the first drive belt in this case is driven at a speed slower than the second belt whereby the ribbon between the reels is also maintained under a constant strain.
REFERENCES:
patent: 2457699 (1948-12-01), Marsen
patent: 3084880 (1963-04-01), Grant
patent: 3125311 (1964-03-01), Willis
patent: 3218877 (1965-11-01), Kaplan
patent: 3219290 (1965-11-01), Delin
patent: 3514049 (1970-05-01), Decker et al.
patent: 3831731 (1974-08-01), Mack et al.
patent: 3889795 (1975-06-01), Garberi et al.
patent: 3974982 (1976-08-01), Stone
patent: 3977511 (1976-08-01), Hengelhaupt
patent: 4074799 (1978-02-01), Hishida et al.
patent: 4078485 (1978-03-01), Guthrie
patent: 4132485 (1979-01-01), Hess
Orlando et al., "Dual Capstan Tape Transport", IBM Technical Disclosure Bulletin, vol. 14, No. 7, pp. 2137-2138, 12/71.
Firth et al., "Peripheral Printer Ribbon Drive Mechanism", IBM Technical Disclosure Bulletin, vol. 22, No. 3, p. 875, 8/79.
Bernard, "Print Mechanism Ribbon Feed", IBM Technical Disclosure Bulletin, vol. 7, No. 3, pp. 250-251, 8/64.
International Business Machines - Corporation
Kraft J. B.
Pieprz William
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