Dynamic magnetic information storage or retrieval – Record medium – In container
Patent
1977-02-07
1978-04-25
Wolff, John H.
Dynamic magnetic information storage or retrieval
Record medium
In container
360 99, 2091105, G11B 2302, G11B 2504
Patent
active
040866416
ABSTRACT:
Improved disk pack media for data storage illustrated as comprising a pack of flexible magnetic recording disks perforated for partitioning and adapted for stacking each in a different respective rotational orientation to facilitate partitioning. All disks are hole-encoded in a common pattern, then stacked to dispose each in a unique rotational "misregistration" relative to all others -- thereby opening-up and/or closing-off adjacent "partition bores" and permitting associated automatic apparatus to selectively partition the pack and expose any desired disk-side for operation thereon.
REFERENCES:
patent: 1360617 (1920-11-01), Brand
patent: 3931644 (1976-01-01), Ward
patent: 3947885 (1976-03-01), McGinnis et al.
patent: 3961656 (1976-06-01), Aggarwal
IBM Technical Disclosure Bulletin, vol. 19, No. 1, June 1976, p. 171.
DeMoss Dean
Ragle Herbert Underwood
Burroughs Corporation
Cass Nathan
McCormack John J.
Peterson Kevin R.
Wolff John H.
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