GB1412479A - Magenetic disc storage apparatus - Google Patents

Magenetic disc storage apparatus

Info

Publication number
GB1412479A
GB1412479A GB5535973A GB5535973A GB1412479A GB 1412479 A GB1412479 A GB 1412479A GB 5535973 A GB5535973 A GB 5535973A GB 5535973 A GB5535973 A GB 5535973A GB 1412479 A GB1412479 A GB 1412479A
Authority
GB
United Kingdom
Prior art keywords
disc
storage apparatus
periphery
magenetic
magnetic
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
GB5535973A
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.)
International Business Machines Corp
Original Assignee
International Business Machines 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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of GB1412479A publication Critical patent/GB1412479A/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
    • G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
    • G11B17/32—Maintaining desired spacing between record carrier and head, e.g. by fluid-dynamic spacing

Landscapes

  • Magnetic Record Carriers (AREA)
  • Automatic Disk Changers (AREA)
  • Toys (AREA)

Abstract

1412479 Magnetic-disc data-storage apparatus INTERNATIONAL BUSINESS MACHINES CORP 29 Nov 1973 [29 Dec 1972] 55359/73 Heading G5R An enclosure 10, Fig. 2, or 15, Fig. 3, for a magnetic-disc data-storage apparatus 1, 6, 7 has part of its periphery in the form of a curved wall 10a or 15a, 15b closely spaced from the periphery of the disc(s) and forming part of a cylinder coaxial therewith, the spacing between the wall and the disc periphery being small enough, e.g. less than 2À5 mm., substantially to prevent air movement on one side of a disc from causing turbulence in the air on the other side of the disc. The air flow may be further controlled by at least one spoiler 9, 13, 14 extending into the space between two discs.
GB5535973A 1972-12-29 1973-11-29 Magenetic disc storage apparatus Expired GB1412479A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722264029 DE2264029C3 (en) 1972-12-29 1972-12-29 Magnetic disk storage

Publications (1)

Publication Number Publication Date
GB1412479A true GB1412479A (en) 1975-11-05

Family

ID=5865756

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5535973A Expired GB1412479A (en) 1972-12-29 1973-11-29 Magenetic disc storage apparatus

Country Status (5)

Country Link
JP (1) JPS528686B2 (en)
CA (1) CA1021455A (en)
DE (1) DE2264029C3 (en)
FR (1) FR2212592B1 (en)
GB (1) GB1412479A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2240871A (en) * 1990-01-16 1991-08-14 Alps Electric Co Ltd Magnetic head and disk assembly
EP1213708A2 (en) * 2000-12-11 2002-06-12 Fujitsu Limited Disk unit with increased head-positioning accuracy
WO2003079361A1 (en) * 2002-03-08 2003-09-25 Seagate Technology Llc Multiple shroud bypass for bulk windage reduction

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52134713A (en) * 1976-05-06 1977-11-11 Nippon Telegr & Teleph Corp <Ntt> Magnetic disk unit
US4367502A (en) * 1980-04-11 1983-01-04 Shugart Technology Fixed hard disc drive assembly and clean air system
JPS5984386A (en) * 1982-11-08 1984-05-16 Hitachi Ltd Magnetic disk device
DE3337845A1 (en) * 1983-10-18 1985-04-25 Nixdorf Computer Ag, 4790 Paderborn HARD DISK DRIVE

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3258756A (en) * 1963-04-17 1966-06-28 Temperature and pressure stabilizer systems for random access disc memory systems

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2240871A (en) * 1990-01-16 1991-08-14 Alps Electric Co Ltd Magnetic head and disk assembly
EP1213708A2 (en) * 2000-12-11 2002-06-12 Fujitsu Limited Disk unit with increased head-positioning accuracy
EP1213708A3 (en) * 2000-12-11 2007-06-13 Fujitsu Limited Disk unit with increased head-positioning accuracy
WO2003079361A1 (en) * 2002-03-08 2003-09-25 Seagate Technology Llc Multiple shroud bypass for bulk windage reduction
US6930856B2 (en) 2002-03-08 2005-08-16 Seagate Technology Llc Multiple shroud bypass for bulk windage reduction

Also Published As

Publication number Publication date
DE2264029A1 (en) 1974-07-18
DE2264029B2 (en) 1975-01-30
FR2212592B1 (en) 1978-11-10
CA1021455A (en) 1977-11-22
FR2212592A1 (en) 1974-07-26
JPS4998605A (en) 1974-09-18
JPS528686B2 (en) 1977-03-10
DE2264029C3 (en) 1975-09-04

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Legal Events

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