Helical scan type apparatus with readily aligned scanning unit

Details Helical scan type apparatus with readily aligned scanning unit Helical scan type apparatus with readily aligned scanning unit

1986-07-01

1988-08-02

Wolff, John H.

Dynamic magnetic information storage or retrieval

Record transport with head moving during transducing

Tape record

36013022, 36013023, 36013024, G11B 508, G11B 2104

Patent

active

047616962

ABSTRACT:
A helical scan head drum assembly includes upper and lower drums having an aligned guide surface. The upper and lower drums can be easily separated from each other to install or replace a head support between the drums, and reassembled without loss of alignment of the circumferential guide surface. Each drum has three positioning elements formed in a wall portion, arranged such that the positioning elements of the two drums engage each other pairwise to form a statically defined alignment of the two drums. The fixing element presses the two drums together at the location of the positioning elements to fix them in place.

REFERENCES:
patent: 3435154 (1969-03-01), Kihara
patent: 3955215 (1976-05-01), Hosoi
patent: 4641214 (1987-02-01), Imanishi et al.
"Procedures in Experimental Physics", by Stroug, 1945, pp. 585-593, Prentice-Hall.

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