Helical scan head drum with helical grooves for generating an ai

Dynamic magnetic information storage or retrieval – Head – Head accessory

Patent

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Details

360102, G11B 1564, G11B 560

Patent

active

039810240

ABSTRACT:
A helical wrap tape transport system having a plurality of components cooperating to provide a low friction and highly accurate transport of magnetic tape for video broadcasting. The transport system has a helical scanner assembly with a rotating scanning drum having helical surface V-grooves which create an air bearing for magnetic tape wrapped across the drum and oppositely mounted recording transducers which permit continuous recording on a 180.degree. tape wrap around the drum, and a stationary drum on a common axis with the rotating drum having a fixed control track transducer for synchronizing tape transport at the scanning assembly. The transport system has further, air bearing guide posts and a pair of vacuum columns which continuously monitor a tape supply loop which in combination with the guide posts provide a section of low inertia recording tape, the transport of which can be controlled by a single high friction drive capstan.

REFERENCES:
patent: 3293377 (1966-12-01), Backers et al.
patent: 3534893 (1970-10-01), Maxson
patent: 3614338 (1971-10-01), Bogels

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