Helical scan tape guide apparatus

Details Helical scan tape guide apparatus Helical scan tape guide apparatus

1987-04-02

1988-08-09

Heinz, A. J.

Dynamic magnetic information storage or retrieval

Record transport with head moving during transducing

Tape record

242182, 36013023, G11B 5027, G11B 1558

Patent

active

047632100

ABSTRACT:
Helical scan tape recorder/playback apparatus includes a pair of concave air-bearing surfaces disposed immediately adjacent and tangential to opposing sides of a circumferential surface of a rotary head scanner, to cooperatively form a path for guiding magnetic tape past the head scanner at a predetermined angle other than zero degrees. A vacuum source serves to evacuate air from the vicinity of each air-bearing surface to create an air pressure gradient the effect of which is to cause magnetic tape to ride on a thin film of air interposed between the tape and each air-bearing surface during transport of the tape from a supply reel to a take-up reel.

REFERENCES:
patent: 2954911 (1960-10-01), Baumeister
patent: 3134527 (1964-05-01), Willis
patent: 3254854 (1966-06-01), Deighton
patent: 3617650 (1971-11-01), Morello
patent: 3940791 (1976-02-01), Kayan
patent: 3986651 (1976-10-01), Grant
patent: 4194661 (1980-03-01), Grant
patent: 4413293 (1983-11-01), Hathaway

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