FR1119186A - Methods and means of making endless tracks for recording information, for example on magnetic materials - Google Patents

Methods and means of making endless tracks for recording information, for example on magnetic materials

Info

Publication number
FR1119186A
FR1119186A FR1119186DA FR1119186A FR 1119186 A FR1119186 A FR 1119186A FR 1119186D A FR1119186D A FR 1119186DA FR 1119186 A FR1119186 A FR 1119186A
Authority
FR
France
Prior art keywords
methods
recording information
magnetic materials
endless tracks
making endless
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
Other languages
French (fr)
Inventor
Andre-Charles-Jean Piquet
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.)
Laboratoire Central de Telecommunications SA
Original Assignee
Laboratoire Central de Telecommunications SA
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 Laboratoire Central de Telecommunications SA filed Critical Laboratoire Central de Telecommunications SA
Application granted granted Critical
Publication of FR1119186A publication Critical patent/FR1119186A/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
FR1119186D 1954-11-10 1954-11-10 Methods and means of making endless tracks for recording information, for example on magnetic materials Expired FR1119186A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1119186T 1954-11-10

Publications (1)

Publication Number Publication Date
FR1119186A true FR1119186A (en) 1956-06-15

Family

ID=9630834

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1119186D Expired FR1119186A (en) 1954-11-10 1954-11-10 Methods and means of making endless tracks for recording information, for example on magnetic materials

Country Status (1)

Country Link
FR (1) FR1119186A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2950353A (en) * 1955-07-05 1960-08-23 Litton Industries Inc Pliant disk magnetic recording apparatus
US3047869A (en) * 1959-05-25 1962-07-31 North American Aviation Inc Rotatable magnetic disc movable toward and from disc carrying transducer
US3081682A (en) * 1961-06-28 1963-03-19 Ibm Method and apparatus for obtaining and maintaining spacing of a transducer
US3155977A (en) * 1959-08-31 1964-11-03 Ibm Resilient recording disk
US3248737A (en) * 1961-05-10 1966-04-26 Sperry Rand Corp Self-stabilizing mechanical system
US3603742A (en) * 1968-02-29 1971-09-07 Telefunken Patent Reproducing system utilizing round flexible magnetizable recording carrier foils
US3688285A (en) * 1970-02-16 1972-08-29 Ibm Flexible disk magnetic recording device
FR2164708A1 (en) * 1971-12-20 1973-08-03 Matsushita Electric Ind Co Ltd
EP0146656A1 (en) * 1983-12-21 1985-07-03 International Business Machines Corporation A disk cartridge having a flexible disk storage medium and a disk file including such a cartridge

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2950353A (en) * 1955-07-05 1960-08-23 Litton Industries Inc Pliant disk magnetic recording apparatus
US3047869A (en) * 1959-05-25 1962-07-31 North American Aviation Inc Rotatable magnetic disc movable toward and from disc carrying transducer
US3155977A (en) * 1959-08-31 1964-11-03 Ibm Resilient recording disk
DE1220894B (en) * 1959-08-31 1966-07-14 Ibm Device for guiding a film-shaped, elastically deformable recording medium
US3248737A (en) * 1961-05-10 1966-04-26 Sperry Rand Corp Self-stabilizing mechanical system
US3081682A (en) * 1961-06-28 1963-03-19 Ibm Method and apparatus for obtaining and maintaining spacing of a transducer
US3603742A (en) * 1968-02-29 1971-09-07 Telefunken Patent Reproducing system utilizing round flexible magnetizable recording carrier foils
US3688285A (en) * 1970-02-16 1972-08-29 Ibm Flexible disk magnetic recording device
FR2164708A1 (en) * 1971-12-20 1973-08-03 Matsushita Electric Ind Co Ltd
EP0146656A1 (en) * 1983-12-21 1985-07-03 International Business Machines Corporation A disk cartridge having a flexible disk storage medium and a disk file including such a cartridge
US4660117A (en) * 1983-12-21 1987-04-21 International Business Machines Corporation Disk cartridge having a flexible disk storage medium and a disk file including such a cartridge

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