Tape transport apparatus

Details Tape transport apparatus Tape transport apparatus

1975-05-06

1977-04-19

Christian, Leonard D.

Winding, tensioning, or guiding

Strand tensioning device

Tortuous course

360 71, 242206, G03B 104, G11B 1532

Patent

active

040184021

ABSTRACT:
An improved tape transport apparatus of the type in which the supply and take-up reels are simultaneously driven by surface engagement of a capstan with the outermost layer of tape on each reel. The uniform tape tension required in a system of this type is produced and maintained by the combination of a braking force on the reel acting as the supply reel and of different biasing forces which cause different deformation of the capstan at the points of surface engagement of the supply and take-up reels with the capstan. A substantially constant tension profile is obtained by balancing the tension contributed by the two types of forces. A braking/biasing unit on each of the reel shafts provides both an undirectional braking force to resist the rotation of the shaft acting as the supply shaft and the biasing forces required to produce the unequal deformation.

REFERENCES:
patent: 3482800 (1969-12-01), Barnett et al.
patent: 3593945 (1971-07-01), Richardson et al.

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