Winding – tensioning – or guiding – Coil holder or support – Spool or core
Patent
1974-08-19
1976-04-20
Christian, Leonard D.
Winding, tensioning, or guiding
Coil holder or support
Spool or core
B65H 1748
Patent
active
039513521
ABSTRACT:
A magnetic tape guidance device, which may be in the form of a cartridge, for use with a record/playback machine, so that the tape is drawn past record/playback heads on the machine by drive means also provided on the machine. The device includes a precision guide post which guides tape towards the record/playback heads and the drive means, and a flat second guide at right angles to the axis of the cylindrical guide post which maintains the height of the tape correctly in relation to the record/playback heads, the device also including a tape tensioning device which applies frictional resistance to the tape prior to movement around the guide post such that wrap of the tape around the guidepost is symmetrical. In a variant, an endless tape cartridge is provided in which the function of providing symmetrical tension is combined with the function of drawing tape from the center of the reel, the tape then being fed around the guide post, over the head or heads, and through the drive means, after which it is rewound on the reel. In all embodiments the device will combine with a machine to create a true open-loop head configuration, in which a single precision guide feeds tape across heads to a drive mechanism, without need of additional guidance.
REFERENCES:
patent: 2778880 (1957-01-01), Eash
patent: 3161362 (1964-12-01), Smith
patent: 3269671 (1966-08-01), Cole, Jr.
patent: 3305296 (1967-02-01), Nicosia
patent: 3343759 (1967-09-01), Kallay
patent: 3481551 (1969-12-01), Steelman
patent: 3563482 (1971-02-01), Auld
patent: 3583652 (1971-06-01), Merry
patent: 3637151 (1972-01-01), Skwarek
patent: 3788574 (1974-01-01), Wakeman et al.
DiPalma Dominic R.
Glasstetter David J.
Gordon Jack K.
Kalmokoff Donald M.
Christian Leonard D.
Western Broadcasting Co., Ltd.
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