GB922889A - Improvements relating to magnetic recording and/or playback devices - Google Patents

Improvements relating to magnetic recording and/or playback devices

Info

Publication number
GB922889A
GB922889A GB3650661A GB3650661A GB922889A GB 922889 A GB922889 A GB 922889A GB 3650661 A GB3650661 A GB 3650661A GB 3650661 A GB3650661 A GB 3650661A GB 922889 A GB922889 A GB 922889A
Authority
GB
United Kingdom
Prior art keywords
magnetic recording
playback devices
record
improvements relating
oct
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
GB3650661A
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.)
Philips Electrical Industries Ltd
Original Assignee
Philips Electrical Industries 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 Philips Electrical Industries Ltd filed Critical Philips Electrical Industries Ltd
Publication of GB922889A publication Critical patent/GB922889A/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
    • G11B21/00—Head arrangements not specific to the method of recording or reproducing
    • G11B21/02—Driving or moving of heads
    • G11B21/04—Automatic feed mechanism producing a progressive transducing traverse of the head in a direction which cuts across the direction of travel of the recording medium, e.g. helical scan, e.g. by lead-screw
    • G11B21/043—Automatic feed mechanism producing a progressive transducing traverse of the head in a direction which cuts across the direction of travel of the recording medium, e.g. helical scan, e.g. by lead-screw for stationary discs
    • 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
    • G11B5/6005—Specially adapted for spacing from a rotating disc using a fluid cushion
    • 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

Abstract

922,889. Magnetic disc recorders. PHILIPS ELECTRICAL INDUSTRIES Ltd. Oct. 11, 1961 [Oct. 14, 1960], No. 36506/61. Class 40 (2). A disc record 1 carries a conical record surface 10 of some 170 degrees apical angle, which provides a suitable convexity to the opposing flat face of a record/playback head 2, suitably preset by means 11, 13, to enable flotation of the head on the entrapped aircushion.
GB3650661A 1960-10-14 1961-10-11 Improvements relating to magnetic recording and/or playback devices Expired GB922889A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL256885 1960-10-14

Publications (1)

Publication Number Publication Date
GB922889A true GB922889A (en) 1963-04-03

Family

ID=19752631

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3650661A Expired GB922889A (en) 1960-10-14 1961-10-11 Improvements relating to magnetic recording and/or playback devices

Country Status (3)

Country Link
DE (1) DE1230464B (en)
GB (1) GB922889A (en)
NL (2) NL126119C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3514770A (en) * 1967-01-13 1970-05-26 Ibm Reciprocating magnetic read/write head

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL194026A (en) * 1954-09-15
DE1020803B (en) * 1954-11-04 1957-12-12 Zuse K G Device for recording or sampling signals on recording media

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3514770A (en) * 1967-01-13 1970-05-26 Ibm Reciprocating magnetic read/write head

Also Published As

Publication number Publication date
NL126119C (en)
DE1230464B (en) 1966-12-15
NL256885A (en)

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