Cable positioner for a scanning head

Details Cable positioner for a scanning head Cable positioner for a scanning head

1980-01-17

1982-01-12

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

G11B 2108

Patent

active

043108652

ABSTRACT:
Positioner for the scanning head, mounted on a carriage, in a recording and/or playback apparatus for disk records, with a cable extending between the carriage and the drive motor, and a spring as counterforce, which positioner comprises a pulley, mounted on the carriage, and two pulleys of different diameter which are mounted on the shaft of the drive motor and to which the beginning and end of the cable are fixed, the pulley system operating on the differential pulley principle, so that greater accuracy of positioning is achieved and less torque has to be produced by the motor.

REFERENCES:
patent: Re29380 (1977-08-01), Castrodale et al.
patent: 3881189 (1975-04-01), Mayeda
patent: 3946439 (1976-03-01), Castrodale et al.
patent: 4161004 (1979-07-01), Dalziel
patent: 4194226 (1980-03-01), Kaseta et al.

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