GB1485690A - Reversible magnetic recording disc unit - Google Patents

Reversible magnetic recording disc unit

Info

Publication number
GB1485690A
GB1485690A GB4541875A GB4541875A GB1485690A GB 1485690 A GB1485690 A GB 1485690A GB 4541875 A GB4541875 A GB 4541875A GB 4541875 A GB4541875 A GB 4541875A GB 1485690 A GB1485690 A GB 1485690A
Authority
GB
United Kingdom
Prior art keywords
disc
recording disc
magnetic recording
disc unit
jacket
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB4541875A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
INFORMATION TERMINALS CORP
Original Assignee
INFORMATION TERMINALS CORP
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by INFORMATION TERMINALS CORP filed Critical INFORMATION TERMINALS CORP
Priority to GB4541875A priority Critical patent/GB1485690A/en
Publication of GB1485690A publication Critical patent/GB1485690A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/02—Containers; Storing means both adapted to cooperate with the recording or reproducing means
    • G11B23/03—Containers for flat record carriers
    • G11B23/033—Containers for flat record carriers for flexible discs
    • G11B23/0332—Containers for flat record carriers for flexible discs for single discs, e.g. envelopes

Abstract

1485690 Magnetic-recording disc cassettes INFORMATION TERMINALS CORP 31 Oct 1975 45418/75 Heading G5R A double-sided magnetic recording disc 12 is contained in a jacket 13 of which each face has a central opening 22, a radial slot 28 and two symmetrically located holes 38, 40. These give access to the disc 12 from either side for respectively a drive spindle, a magnetic head and an optical sensor which detects the passage of a hole 36 in the disc. The jacket 13 may have further symmetrically disposed holes or notches for the control of a recording function, Figs. 4 to 8 (not shown).
GB4541875A 1975-10-31 1975-10-31 Reversible magnetic recording disc unit Expired GB1485690A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4541875A GB1485690A (en) 1975-10-31 1975-10-31 Reversible magnetic recording disc unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4541875A GB1485690A (en) 1975-10-31 1975-10-31 Reversible magnetic recording disc unit

Publications (1)

Publication Number Publication Date
GB1485690A true GB1485690A (en) 1977-09-14

Family

ID=10437141

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4541875A Expired GB1485690A (en) 1975-10-31 1975-10-31 Reversible magnetic recording disc unit

Country Status (1)

Country Link
GB (1) GB1485690A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2489576A1 (en) * 1980-08-27 1982-03-05 Canon Kk MAGNETIC SHEET CASSETTE
DE3124886A1 (en) * 1980-06-27 1982-04-01 Victor Company Of Japan DISK RECORDING HOUSING
FR2547096A1 (en) * 1983-05-30 1984-12-07 Saint Ignan Auguste Sleeve for floppy data storage disk for a computer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3124886A1 (en) * 1980-06-27 1982-04-01 Victor Company Of Japan DISK RECORDING HOUSING
FR2489576A1 (en) * 1980-08-27 1982-03-05 Canon Kk MAGNETIC SHEET CASSETTE
FR2547096A1 (en) * 1983-05-30 1984-12-07 Saint Ignan Auguste Sleeve for floppy data storage disk for a computer

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee