Web guiding device for use in a magnetic reading and/or recordin

Details Web guiding device for use in a magnetic reading and/or recordin Web guiding device for use in a magnetic reading and/or recordin

1992-02-18

1994-02-08

Shepperd, John

Dynamic magnetic information storage or retrieval

Recording on or reproducing from an element of diverse utility

Motion picture film

226199, B65H 2332, G03B 150, G03B 3100, G11B 5633

Patent

active

052853250

ABSTRACT:
A magnetic reading and/or recording apparatus for reading and/or recording information from/on a magnetic information track on a photosensitive medium includes a magnetic reading and/or recording element connected to an edge follower having a variable tracking position. The edge follower tracks a longitudinal edge of a moving photosensitive medium by adjusting with the photosensitive medium responsive to any departures of the photosensitive medium from a defined path to effect a constant orientation of the magnetic reading and/or recording element with respect to the longitudinal edge of the photosensitive medium. The magnetic reading and/or recording apparatus further includes a member supporting the edge follower for movement by a forward leading edge of a photosensitive medium, when the photosensitive medium enters the defined path, from a normal initial position in the defined path to the variable tracking position, to effect a proper relation between the photosensitive medium in the defined path and the edge follower in its variable tracking position.

REFERENCES:
patent: 3114489 (1963-12-01), Legler
patent: 3136209 (1964-06-01), Briskin
patent: 3572918 (1971-03-01), Stessliger
patent: 4991787 (1991-02-01), Berg
patent: 5152622 (1992-10-01), Rasmussen

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