GB1017747A – Magnetic recording member and apparatus for use therewith
– Google Patents
GB1017747A – Magnetic recording member and apparatus for use therewith
– Google Patents
Magnetic recording member and apparatus for use therewith
Info
Publication number
GB1017747A
GB1017747A
GB41223/64A
GB4122364A
GB1017747A
GB 1017747 A
GB1017747 A
GB 1017747A
GB 41223/64 A
GB41223/64 A
GB 41223/64A
GB 4122364 A
GB4122364 A
GB 4122364A
GB 1017747 A
GB1017747 A
GB 1017747A
Authority
GB
United Kingdom
Prior art keywords
oct
tension
tip
magnetic recording
recording member
Prior art date
1963-10-30
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
GB41223/64A
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.)
1963-10-30
Filing date
1964-10-09
Publication date
1966-01-19
1964-10-09
Application filed by International Business Machines Corp
filed
Critical
International Business Machines Corp
1966-01-19
Publication of GB1017747A
publication
Critical
patent/GB1017747A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
G11B5/62—Record carriers characterised by the selection of the material
G11B5/64—Record carriers characterised by the selection of the material comprising only the magnetic material without bonding agent
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
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
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
H01F10/26—Thin magnetic films, e.g. of one-domain structure characterised by the substrate or intermediate layers
H01F10/28—Thin magnetic films, e.g. of one-domain structure characterised by the substrate or intermediate layers characterised by the composition of the substrate
Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
Y10T29/00—Metal working
Y10T29/49—Method of mechanical manufacture
Y10T29/49826—Assembling or joining
Y10T29/49863—Assembling or joining with prestressing of part
Y10T29/49867—Assembling or joining with prestressing of part of skin on frame member
Abstract
1,017,747. Magnetic disc records and apparatus. INTERNATIONAL BUSINESS MACHINES CORPORATION. Oct. 9, 1964 [Oct. 30, 1963], No. 41223/64. Heading G5R. A record for language laboratory use takes the form of an apertured membrane of magnetically-coated terephthalate plastics 1, radially tensioned during manufacture (Fig. 1, not shown), the tension being maintained by epoxy resin-attached rings 8, 9. The tension is adjusted such that when a spherical head-tip 12 of some 3-inch radius is applied, the material 1, Fig. 3C (not shown), flows around the tip in intimate transducing contact, without the formation of » bowwaves,» which would otherwise cause wow and flutter.
GB41223/64A
1963-10-30
1964-10-09
Magnetic recording member and apparatus for use therewith
Expired
GB1017747A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
US320210A
US3373413A
(en)
1963-10-30
1963-10-30
Pliable magnetic recording disk with direct transducer contact
Publications (1)
Publication Number
Publication Date
GB1017747A
true
GB1017747A
(en)
1966-01-19
Family
ID=23245377
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB41223/64A
Expired
GB1017747A
(en)
1963-10-30
1964-10-09
Magnetic recording member and apparatus for use therewith
Country Status (7)
Country
Link
US
(1)
US3373413A
(en)
BE
(1)
BE654955A
(en)
CH
(1)
CH429219A
(en)
FR
(1)
FR1412758A
(en)
GB
(1)
GB1017747A
(en)
NL
(1)
NL6412514A
(en)
SE
(1)
SE333653B
(en)
Families Citing this family (27)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3480964A
(en)
*
1967-02-09
1969-11-25
North American Rockwell
Structure for assembling annular tensioned recording discs
US3516081A
(en)
*
1969-07-31
1970-06-02
North American Rockwell
Fluid bearing pads for supporting transducers
US3737880A
(en)
*
1971-09-10
1973-06-05
Arvin Ind Inc
Flexible disc with air intake in turntable
JPS573148B2
(en)
*
1974-05-16
1982-01-20
US4317150A
(en)
*
1979-12-10
1982-02-23
International Business Machines Corporation
Foil recording disk structures
US4328607A
(en)
*
1979-12-10
1982-05-11
International Business Machines Corporation
Manufacturing process for foil magnetic recording disks
DE3066723D1
(en)
*
1979-12-10
1984-03-29
Ibm
Methods of fabricating magnetic records, magnetic records so fabricated, and magnetic recording and reproducing apparatus comprising such fabricated magnetic records
US4365258A
(en)
*
1981-05-18
1982-12-21
Eastman Kodak Company
Optical disc unit, fabrication method and cooperating write and/or read apparatus
US4449139A
(en)
*
1981-05-18
1984-05-15
Eastman Kodak Company
Optical disc unit, fabrication method and cooperating write and/or read apparatus
CA1170873A
(en)
*
1981-05-18
1984-07-17
Frederick F. Geyer
Laminate optical disc and fabrication method
US4625384A
(en)
*
1982-04-19
1986-12-02
Minnesota Mining And Manufacturing Company
Method of making a recording disc
US4453246A
(en)
*
1982-09-30
1984-06-05
Eastman Kodak Company
Retaining rings for optical disc assemblies
US4670072A
(en)
*
1982-10-13
1987-06-02
Minnesota Mining And Manufacturing Company
Method of making a stretched surface recording disk
US4573097A
(en)
*
1982-10-13
1986-02-25
Minnesota Mining And Manufacturing Company
Stretched surface recording disk and method of manufacture
US4553232A
(en)
*
1983-01-17
1985-11-12
Eastman Kodak Company
Clamping device for optical disk assemblies
US4482903A
(en)
*
1983-06-20
1984-11-13
Eastman Kodak Company
Disk unit with retaining ring
US4631609A
(en)
*
1984-02-16
1986-12-23
Minnesota Mining And Manufacturing Company
Stretched surface recording disk substrate
US4835647A
(en)
*
1984-12-21
1989-05-30
Minnesota Mining And Manufacturing Company
Stretched surface recording medium
US4963209A
(en)
*
1984-12-21
1990-10-16
Minnesota Mining And Manufacturing Company
Method for making stretched surface recording disk
JPS61192029A
(en)
*
1985-02-21
1986-08-26
Fuji Photo Film Co Ltd
Production of magnetic disk
USRE33187E
(en)
*
1985-03-14
1990-03-27
Minnesota Mining And Manufacturing Company
Stable stretched surface recording medium
US4623570A
(en)
*
1985-03-14
1986-11-18
Minnesota Mining And Manufacturing Company
Stable stretched surface recording medium
US4729805A
(en)
*
1985-03-14
1988-03-08
Minnesota Mining And Manufacturing Company
Recording medium annealing process
US4952435A
(en)
*
1985-10-03
1990-08-28
Fuji Photo Film Co., Ltd.
Adhesive for a base-mounted flexible magnetic disc
US4887178A
(en)
*
1988-06-13
1989-12-12
Minnesota Mining And Manufacturing Company
Aligned stretched surface recording medium
JPH02292721A
(en)
*
1989-05-02
1990-12-04
Tdk Corp
Magnetic disk
JP2003162879A
(en)
*
2001-11-26
2003-06-06
Fuji Photo Film Co Ltd
Disk-like magnetic recording medium
Family Cites Families (7)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US2535480A
(en)
*
1945-08-27
1950-12-26
Brush Dev Co
Magnetic recording and reproducing
US3036304A
(en)
*
1958-08-20
1962-05-22
Ibm
Resilient magnetic drum
US3130110A
(en)
*
1961-02-15
1964-04-21
Reeves Sounderaft Corp
Computer recording disc assembly
NL278158A
(en)
*
1961-05-09
US3290692A
(en)
*
1962-08-07
1966-12-06
Sperry Rand Corp
Magnetic storage disc and drum
US3336583A
(en)
*
1963-05-17
1967-08-15
Potter Instrument Co Inc
Deformable magnetizable disc mounted on cylinder
US3334193A
(en)
*
1963-10-24
1967-08-01
Lab For Electronics Inc
High-frequency, high-density time compressor
1963
1963-10-30
US
US320210A
patent/US3373413A/en
not_active
Expired – Lifetime
1964
1964-10-09
GB
GB41223/64A
patent/GB1017747A/en
not_active
Expired
1964-10-27
FR
FR992818A
patent/FR1412758A/en
not_active
Expired
1964-10-28
BE
BE654955A
patent/BE654955A/xx
unknown
1964-10-28
CH
CH1394064A
patent/CH429219A/en
unknown
1964-10-28
SE
SE13002/64A
patent/SE333653B/xx
unknown
1964-10-28
NL
NL6412514A
patent/NL6412514A/xx
unknown
Also Published As
Publication number
Publication date
SE333653B
(en)
1971-03-22
BE654955A
(en)
1965-02-15
US3373413A
(en)
1968-03-12
DE1449789A1
(en)
1970-03-26
DE1449789B2
(en)
1971-05-27
CH429219A
(en)
1967-01-31
FR1412758A
(en)
1965-10-01
NL6412514A
(en)
1965-05-03
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None