Tape driving apparatus

Details Tape driving apparatus Tape driving apparatus

1977-06-17

1979-01-09

Christian, Leonard D.

Winding, tensioning, or guiding

Strand tensioning device

Tortuous course

242203, B65H 5938, G03B 0104

Patent

active

041334949

ABSTRACT:
A tape driving apparatus in which even if the radius of a magnetic medium such as a magnetic tape wound on a supply and/or take-up reel is varied, a current flowing in a servo motor coupled directly to a capstan, which is varied in accordance with a load, is utilized to make the speed of the servo-motor constant by controlling a reel motor and hence to make the back tension and take-up tension of the magnetic tape equal.

REFERENCES:
patent: 3318546 (1967-05-01), Bejach
patent: 3600654 (1971-08-01), Yasutake
patent: 3805127 (1974-04-01), Svendsen
patent: 3984868 (1976-10-01), Ragle et al.
patent: 4015177 (1977-03-01), Vaz Martins

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