Winding – tensioning – or guiding – Coil holder or support – Spool or core
Patent
1981-04-30
1983-07-26
Taylor, Billy S.
Winding, tensioning, or guiding
Coil holder or support
Spool or core
352 78R, 360 93, G11B 2310
Patent
active
043949894
ABSTRACT:
A cartridge including a cylindrical hub attached to a housing, which hub has a central opening and a slot extending axially across the width of the hub and communicating with the central opening, and an endless length of magnetic tape having a major portion wrapped about the hub to form a coil and a minor portion extending from the innermost wrap of the coil, through the slot and around the side surface of the coil to the outermost wrap of the coil. Means on the housing define a tape path for the minor tape portion including a spring biased movable guide pin that provides a desired low, predetermined tension in the outermost wrap of the coil. A portion of the hub can be moved radially to adjust the length of the minor tape portion and thereby position the guide pin in a predetermined portion of its range of movement, and a lock assembly is provided for restricting movement of tape in the coil during shipping, which lock assembly is automatically released when the cartridge is inserted into a machine.
REFERENCES:
patent: 3250481 (1966-05-01), Seki
patent: 3257084 (1966-06-01), Cole, Jr.
patent: 3468490 (1969-09-01), Knox
patent: 3524602 (1970-08-01), Greene
patent: 3637151 (1972-01-01), Skwarek et al.
patent: 3756525 (1973-09-01), Aoki
patent: 3773272 (1973-11-01), Wallace
patent: 3913857 (1975-10-01), Threlkeld
patent: 3967788 (1976-07-01), Ponce
patent: 4054925 (1977-10-01), Towner et al.
Alexander Cruzan
Huebsch William L.
Minnesota Mining and Manufacturing Company
Sell Donald M.
Taylor Billy S.
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