FR2369648A1 - Disques a centrage automatique et unite de memoire comportant de tels disques - Google Patents

Disques a centrage automatique et unite de memoire comportant de tels disques

Info

Publication number
FR2369648A1
FR2369648A1 FR7728524A FR7728524A FR2369648A1 FR 2369648 A1 FR2369648 A1 FR 2369648A1 FR 7728524 A FR7728524 A FR 7728524A FR 7728524 A FR7728524 A FR 7728524A FR 2369648 A1 FR2369648 A1 FR 2369648A1
Authority
FR
France
Prior art keywords
discs
memory unit
automatic centering
unit containing
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.)
Granted
Application number
FR7728524A
Other languages
English (en)
Other versions
FR2369648B1 (fr
Inventor
Elwood L Kauffmann
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 FR2369648A1 publication Critical patent/FR2369648A1/fr
Application granted granted Critical
Publication of FR2369648B1 publication Critical patent/FR2369648B1/fr
Granted 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
    • G11B17/038—Centering or locking of a plurality of discs in a single cartridge
    • 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
    • G11B23/0014—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 record carriers not specifically of filamentary or web form
    • G11B23/0021—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 record carriers not specifically of filamentary or web form discs
    • G11B23/0028—Details
    • G11B23/0035—Details means incorporated in the disc, e.g. hub, to enable its guiding, loading or driving
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F10/00—Thin magnetic films, e.g. of one-domain structure
    • H01F10/08—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers
    • H01F10/10—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition
    • H01F10/18—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition being compounds
    • H01F10/20—Ferrites

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Power Engineering (AREA)
  • Holding Or Fastening Of Disk On Rotational Shaft (AREA)
  • Moving Of Heads (AREA)

Abstract

Dispositif pour le centrage automatique d'un disque de mémoire sur son moyeu d'entraînement Le trou central du disque présente trois secteurs 22 sur lesquels viennent porter trois nervures 18 du moyeu. Dispositif utilisable notamment pour le centrage des disques d'une pile.
FR7728524A 1976-11-02 1977-09-14 Disques a centrage automatique et unite de memoire comportant de tels disques Granted FR2369648A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/737,947 US4091454A (en) 1976-11-02 1976-11-02 Self-centering disk having an eccentric elliptical-shaped center locating hole

Publications (2)

Publication Number Publication Date
FR2369648A1 true FR2369648A1 (fr) 1978-05-26
FR2369648B1 FR2369648B1 (fr) 1979-06-01

Family

ID=24965923

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7728524A Granted FR2369648A1 (fr) 1976-11-02 1977-09-14 Disques a centrage automatique et unite de memoire comportant de tels disques

Country Status (21)

Country Link
US (1) US4091454A (fr)
JP (1) JPS5357011A (fr)
AR (1) AR225269A1 (fr)
AT (1) AT355820B (fr)
AU (1) AU510780B2 (fr)
BR (1) BR7707403A (fr)
CA (1) CA1100632A (fr)
CH (1) CH622641A5 (fr)
CS (1) CS714677A2 (fr)
DD (1) DD133379A5 (fr)
DE (1) DE2739724C3 (fr)
ES (1) ES462537A1 (fr)
FR (1) FR2369648A1 (fr)
GB (1) GB1581483A (fr)
IL (1) IL52888A (fr)
IT (1) IT1115682B (fr)
NL (1) NL7711511A (fr)
PH (1) PH19363A (fr)
SE (1) SE426111B (fr)
SU (1) SU971122A3 (fr)
YU (1) YU254577A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2407546A1 (fr) * 1977-10-25 1979-05-25 Ibm Disque magnetique flexible et cartouche contenant un tel disque

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4229808A (en) * 1978-12-21 1980-10-21 Ncr Corporation Method for recording multiple data segments on a storage disc with eccentricity factor
DE3135385A1 (de) 1980-03-05 1983-03-17 Papst-Motoren GmbH & Co KG, 7742 St Georgen Plattenspeicher
US4358843A (en) * 1980-09-29 1982-11-09 Rager Edgar A Spindle for centering a data disk
NL8102283A (nl) * 1981-05-11 1982-12-01 Philips Nv Optisch uitleesbare informatieschijf met een reflectielaag gevormd uit een metaallegering.
JPS57195674U (fr) * 1981-06-05 1982-12-11
JPS57203272A (en) * 1981-06-10 1982-12-13 Hitachi Ltd Disc locating mechanism
JPS58118072A (ja) * 1981-12-29 1983-07-13 Seiko Epson Corp 記録媒体取り付け機構
US4503474A (en) * 1982-06-04 1985-03-05 Syquest Technology Disc drive cartridge arrangement
US4754351A (en) * 1984-08-22 1988-06-28 Maxtor Corporation Method and apparatus for controlling radial disk displacement in Winchester disk drives
US5982736A (en) 1997-05-15 1999-11-09 Pierson; Gerald A. Trading card optical compact disc and methods of using and forming same
US7174369B1 (en) 1997-05-15 2007-02-06 Dxpdd, Inc. System and methods of updating compact disc cards and graphical user interface for updating same
US6055123A (en) * 1997-09-16 2000-04-25 Seagate Technology, Inc. Radially loaded disc mounting system for a disc drive
USD418502S (en) * 1998-09-03 2000-01-04 American Tract Society Compact disc
USD426203S (en) * 1998-09-17 2000-06-06 Shape Cd, Inc. Compact disc
USD421427S (en) * 1998-09-17 2000-03-07 Shape Cd, Inc. Compact disc
US6166884A (en) * 1998-10-30 2000-12-26 Iomega Corporation Apparatus and system for stabilizing a disk media surface for engagement with a drive head
USD419152S (en) * 1999-02-11 2000-01-18 Shape Cd, Inc. Compact disk/mini disk
US7152097B1 (en) 2000-06-19 2006-12-19 Diskxpress Us, Inc. System and methods of updating compact discs and graphical user interface for updating same
US10502321B2 (en) 2014-01-14 2019-12-10 Compart Systems Pte, Ltd. Gasket retainer for surface mount fluid component
US9869409B2 (en) * 2013-01-15 2018-01-16 Vistadeltek, Llc Gasket retainer for surface mount fluid component

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR768625A (fr) * 1933-05-02 1934-08-10 Appareil d'enregistrement et d'audition de disques phonographiques
GB421680A (en) * 1933-10-26 1934-12-28 Samuel Whyte Improvements in sound records
FR1319316A (fr) * 1960-12-30 1963-03-01 Ibm Mémoire d'accès direct à enregistrements stationnaires

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2155603A (en) * 1937-03-16 1939-04-25 Us Gauge Co Nonremovable chart holder
US3130393A (en) * 1959-05-13 1964-04-21 Sperry Rand Corp Information storage device
US3258750A (en) * 1962-07-02 1966-06-28 Multi-channel magnetic recording systems
US3198657A (en) * 1964-09-17 1965-08-03 Ibm Process for spin coating objects
JPS537801B2 (fr) * 1973-06-14 1978-03-22
JPS5159205U (fr) * 1974-11-01 1976-05-10

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR768625A (fr) * 1933-05-02 1934-08-10 Appareil d'enregistrement et d'audition de disques phonographiques
GB421680A (en) * 1933-10-26 1934-12-28 Samuel Whyte Improvements in sound records
FR1319316A (fr) * 1960-12-30 1963-03-01 Ibm Mémoire d'accès direct à enregistrements stationnaires

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2407546A1 (fr) * 1977-10-25 1979-05-25 Ibm Disque magnetique flexible et cartouche contenant un tel disque

Also Published As

Publication number Publication date
IL52888A0 (en) 1977-11-30
DE2739724C3 (de) 1979-09-06
ATA637177A (de) 1979-08-15
GB1581483A (en) 1980-12-17
DE2739724A1 (de) 1978-05-03
IT1115682B (it) 1986-02-03
US4091454A (en) 1978-05-23
ES462537A1 (es) 1978-07-16
DD133379A5 (de) 1978-12-27
PH19363A (en) 1986-04-02
CS714677A2 (en) 1984-02-13
JPS5716424B2 (fr) 1982-04-05
SE7712116L (sv) 1978-05-02
SU971122A3 (ru) 1982-10-30
SE426111B (sv) 1982-12-06
CH622641A5 (fr) 1981-04-15
AR225269A1 (es) 1982-03-15
AT355820B (de) 1980-03-25
AU2982077A (en) 1979-05-24
BR7707403A (pt) 1978-08-22
YU254577A (en) 1982-02-28
JPS5357011A (en) 1978-05-24
FR2369648B1 (fr) 1979-06-01
IL52888A (en) 1979-11-30
NL7711511A (nl) 1978-05-05
CA1100632A (fr) 1981-05-05
AU510780B2 (en) 1980-07-10
DE2739724B2 (fr) 1978-12-07

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Legal Events

Date Code Title Description
ST Notification of lapse