Transducer positioning apparatus

Details Transducer positioning apparatus Transducer positioning apparatus

1979-06-28

1981-05-26

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

360 78, 360109, G11B 2108, G11B 2112, G11B 2124, G11B 556

Patent

active

042701554

ABSTRACT:
Apparatus for positioning a transducer head in a prescribed relationship relative to a selected track on a recording medium. The apparatus includes a lead screw that is threadedly coupled to a bracket for supporting the transducer head, whereby a controlled rotation of the lead screw functions to move the transducer head along the surface of the recording medium, to the prescribed position. Rotation of the lead screw is controlled by a geneva mechanism that includes geneva wheel coupled to the lead screw and a geneva driver driven by a reversible d-c motor. Each revolution of the geneva driver rotates the geneva wheel, and thus the lead screw, through a prescribed angle, such that the transducer head is moved along the recording medium by a prescribed amount, such as one track spacing.

REFERENCES:
patent: 3770905 (1973-11-01), Sperry
patent: 4020506 (1977-04-01), Barrett et al.
patent: 4041539 (1977-08-01), Robarge

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