Winding – tensioning – or guiding – Coil holder or support – Spool or core
Patent
1977-11-25
1979-02-13
McCarthy, Edward J.
Winding, tensioning, or guiding
Coil holder or support
Spool or core
242 673R, 242 7543, B65H 1904
Patent
active
041391659
ABSTRACT:
A plurality of strands of magnetic recording tape are withdrawn in parallel feed paths from tape supply reels and are fed by a tape feed assembly at a controlled, high speed rate to a takeup assembly and wound thereat on a corresponding plurality of tape cartridge spools, of the endless tape type, that are rotated by a takeup shaft. The takeup shaft is driven at a spooling rate that is faster than the feed rate and each of the spools are drive coupled to the takeup shaft by individual, adjustable slip-clutch hub assemblies which cause the tape strands to be wound at individually adjustable spooling tensions which must be carefully regulated to insure proper operation of the spooled tapes when assembled in the endless tape cartridge. Each of the supply reels holds sufficient tape for filling numerous individual spools and as each set of spools on the takeup shaft becomes full, the strands of tape are cut and the full spools are withdrawn and replaced with empty spools. At all times during the exchange of spools, the strands of tape from the supply reels are held captive by a tape threading bar assembly which includes a plurality of tape clamps carried on an elongate bar that is movable between a tape capturing position lying crosswise of the strands of tape intermediate the tape feed assembly and the spools on the takeup shaft, and a tape threading position lying on the diametrically opposite side of the spools from the tape feed assembly. After a set of spools has been filled with tape, the threading bar assembly is moved to the tape capturing position and the strands of tape are clamped to the bar and then severed between the bar and the spools. The wound spools are thereupon removed from the takeup shaft. After reloading an empty set of spools on the takeup shaft, the threading bar assembly is rotated to its threading position causing the strands of tape held captive thereby to be drawn over the spools and thereby, positioning the ends of the tape strands such that they can be attached to the spools prior to initiating a succeeding winding operation.
REFERENCES:
patent: 2684210 (1954-07-01), Conti
patent: 2755029 (1956-07-01), Speed
patent: 3779476 (1973-12-01), Hofbauer
patent: 3967789 (1976-07-01), Deletzke
International Audio Visual, Inc.
McCarthy Edward J.
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