GB1347939A - Magnetic data storage disc - Google Patents

Magnetic data storage disc

Info

Publication number
GB1347939A
GB1347939A GB4954372A GB4954372A GB1347939A GB 1347939 A GB1347939 A GB 1347939A GB 4954372 A GB4954372 A GB 4954372A GB 4954372 A GB4954372 A GB 4954372A GB 1347939 A GB1347939 A GB 1347939A
Authority
GB
United Kingdom
Prior art keywords
ring
data storage
magnetic data
hub
disc
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
GB4954372A
Other languages
English (en)
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 GB1347939A publication Critical patent/GB1347939A/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
    • G11B17/32—Maintaining desired spacing between record carrier and head, e.g. by fluid-dynamic spacing
    • 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

Landscapes

  • Holding Or Fastening Of Disk On Rotational Shaft (AREA)
  • Magnetic Record Carriers (AREA)
  • Packaging For Recording Disks (AREA)
GB4954372A 1971-11-06 1972-10-27 Magnetic data storage disc Expired GB1347939A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712155292 DE2155292C3 (de) 1971-11-06 1971-11-06 Einrichtung zur Unterdrückung von unerwünschten Formänderungen von Magnetplatten während des Betriebes eines Magnetplattenspeichers

Publications (1)

Publication Number Publication Date
GB1347939A true GB1347939A (en) 1974-02-27

Family

ID=5824447

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4954372A Expired GB1347939A (en) 1971-11-06 1972-10-27 Magnetic data storage disc

Country Status (6)

Country Link
JP (1) JPS5123328B2 (enrdf_load_stackoverflow)
BE (1) BE790744A (enrdf_load_stackoverflow)
DE (1) DE2155292C3 (enrdf_load_stackoverflow)
FR (1) FR2158282B1 (enrdf_load_stackoverflow)
GB (1) GB1347939A (enrdf_load_stackoverflow)
IT (1) IT967611B (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0136038A1 (en) * 1983-08-29 1985-04-03 Dynamic Disk, Inc. Method and apparatus for producing electroplated magnetic memory disk, and the like

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59153621U (ja) * 1983-03-29 1984-10-15 富士写真フイルム株式会社 フレキシブル磁気デイスク
US4639802A (en) * 1984-06-25 1987-01-27 International Business Machines Corporation Shrink ring for disk clamping
US4672488A (en) * 1984-08-22 1987-06-09 Wright Harold T Spindle hub-disc interface
US4754351A (en) * 1984-08-22 1988-06-28 Maxtor Corporation Method and apparatus for controlling radial disk displacement in Winchester disk drives
JPH0390761U (enrdf_load_stackoverflow) * 1989-12-28 1991-09-17

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3005646A (en) * 1952-01-07 1961-10-24 North American Aviation Inc Means for spaced alignment
NL122740C (enrdf_load_stackoverflow) * 1960-10-03
DE1246812B (de) * 1962-12-17 1967-08-10 Soemmerda Bueromaschwerk Magnetspeicher

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0136038A1 (en) * 1983-08-29 1985-04-03 Dynamic Disk, Inc. Method and apparatus for producing electroplated magnetic memory disk, and the like

Also Published As

Publication number Publication date
DE2155292C3 (de) 1979-09-20
JPS5123328B2 (enrdf_load_stackoverflow) 1976-07-16
DE2155292B2 (de) 1979-01-11
FR2158282A1 (enrdf_load_stackoverflow) 1973-06-15
DE2155292A1 (de) 1973-05-10
IT967611B (it) 1974-03-11
FR2158282B1 (enrdf_load_stackoverflow) 1976-05-21
JPS4858810A (enrdf_load_stackoverflow) 1973-08-17
BE790744A (fr) 1973-02-15

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Legal Events

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