GB1141506A - Improvements in or relating to information storage devices - Google Patents

Improvements in or relating to information storage devices

Info

Publication number
GB1141506A
GB1141506A GB3428365A GB3428365A GB1141506A GB 1141506 A GB1141506 A GB 1141506A GB 3428365 A GB3428365 A GB 3428365A GB 3428365 A GB3428365 A GB 3428365A GB 1141506 A GB1141506 A GB 1141506A
Authority
GB
United Kingdom
Prior art keywords
disc
recess
information storage
holes
air
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
GB3428365A
Inventor
John Alfred Drake
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.)
Fujitsu Services Ltd
Original Assignee
Fujitsu Services Ltd
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 Fujitsu Services Ltd filed Critical Fujitsu Services Ltd
Priority to GB3428365A priority Critical patent/GB1141506A/en
Publication of GB1141506A publication Critical patent/GB1141506A/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
    • G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
    • G11B17/02—Details
    • G11B17/021—Selecting or spacing of record carriers for introducing the heads
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B5/60—Fluid-dynamic spacing of heads from record-carriers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum
    • G11B5/82—Disk carriers
    • G11B5/825—Disk carriers flexible discs

Landscapes

  • Supporting Of Heads In Record-Carrier Devices (AREA)

Abstract

1,141,506. Magnetic recording and playback. INTERNATIONAL COMPUTERS Ltd. 5 July, 1966 [11 Aug., 1965], No. 34283/65. Heading G5R. An information storage disc 1, comprises a flexible information storage member 4 mounted on a rotatable support disc 2, displacement of the member 4 into contact with one or more transducer heads 31 being caused by the passage of a compressible fluid into a cavity 3 between member 4 and disc 2. In operation, disc 1 is put in position on a boss 10 of a shaft 11 and a shaft 19 carrying a guide member 14 is moved towards the disc until bearing 15 of guide member 14 slidably engages a spigot on boss 10. Guide member 14 contains a thrust member 13 which has an annular recess 28 connecting holes 5, 6 formed in disc 1. Air or other compressible fluid is passed at low pressure through a duct 27, hole 26, recess 25, holes 6, recess 28 and holes 5 into cavity 3 to press a coating of magnetic recording material on member 4 into contact with heads 31. To allow air entering recess 3 to escape member 4 is left free at its inner edge or alternatively vents are formed in member 4 or disc 2. Instead of applying air under pressure to duct 27 air may be sucked into recess 3 through scoops positioned round the periphery of disc 1.
GB3428365A 1965-08-11 1965-08-11 Improvements in or relating to information storage devices Expired GB1141506A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3428365A GB1141506A (en) 1965-08-11 1965-08-11 Improvements in or relating to information storage devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3428365A GB1141506A (en) 1965-08-11 1965-08-11 Improvements in or relating to information storage devices

Publications (1)

Publication Number Publication Date
GB1141506A true GB1141506A (en) 1969-01-29

Family

ID=10363691

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3428365A Expired GB1141506A (en) 1965-08-11 1965-08-11 Improvements in or relating to information storage devices

Country Status (1)

Country Link
GB (1) GB1141506A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984003582A1 (en) * 1983-03-11 1984-09-13 Eastman Kodak Co Position control structure for flexible, edge-constrained optical discs
EP0125479A1 (en) * 1980-06-18 1984-11-21 EASTMAN KODAK COMPANY (a New Jersey corporation) Flexible optical disc
EP0191567A2 (en) * 1985-01-24 1986-08-20 Victor Company Of Japan, Limited Information storage disc assembly

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0125479A1 (en) * 1980-06-18 1984-11-21 EASTMAN KODAK COMPANY (a New Jersey corporation) Flexible optical disc
WO1984003582A1 (en) * 1983-03-11 1984-09-13 Eastman Kodak Co Position control structure for flexible, edge-constrained optical discs
EP0191567A2 (en) * 1985-01-24 1986-08-20 Victor Company Of Japan, Limited Information storage disc assembly
EP0191567A3 (en) * 1985-01-24 1988-03-16 Victor Company Of Japan, Limited Information storage disc assembly

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