Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Drum record
Patent
1991-06-03
1993-10-05
Levy, Stuart S.
Dynamic magnetic information storage or retrieval
Record transport with head stationary during transducing
Drum record
360107, G11B 553, G11B 2124
Patent
active
052510840
ABSTRACT:
A head base which can be used with either of two different types of drums having a regular diameter and a smaller diameter. The head base comprises a single base plate having a transverse hole perforated therein in such a manner as to define a front portion, a rear portion and a pair of connecting portions which connect the front and rear portions to each other such that the front portion and the rear portion are capable of being separated from each other at the connecting portions. When the head base is to be used with a drum of a regular diameter of a rotary drum apparatus, it is used as it is. But when it is to be used with a drum of a smaller diameter, it is cut or broken at the connecting portions thereof to separate the front portion from the rear portion, and only the front portion is used as a head base.
REFERENCES:
patent: 4823218 (1989-04-01), Ibe et al.
patent: 4897745 (1990-01-01), Binder-Kriegelstein
patent: 5065267 (1991-11-01), Yohda
Nanjyo Shinichi
Shonai Minoru
Yoshida Futoshi
Levy Stuart S.
Renner Craig A.
Sony Corporation
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