GB1095242A – Magnetic holding device
– Google Patents
GB1095242A – Magnetic holding device
– Google Patents
Magnetic holding device
Info
Publication number
GB1095242A
GB1095242A
GB14754/66A
GB1475466A
GB1095242A
GB 1095242 A
GB1095242 A
GB 1095242A
GB 14754/66 A
GB14754/66 A
GB 14754/66A
GB 1475466 A
GB1475466 A
GB 1475466A
GB 1095242 A
GB1095242 A
GB 1095242A
Authority
GB
United Kingdom
Prior art keywords
disc
magnetic
coned
support member
flanged
Prior art date
1965-04-26
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
GB14754/66A
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.)
1965-04-26
Filing date
1966-04-04
Publication date
1967-12-13
1966-04-04
Application filed by International Business Machines Corp
filed
Critical
International Business Machines Corp
1967-12-13
Publication of GB1095242A
publication
Critical
patent/GB1095242A/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
G11B17/02—Details
G11B17/022—Positioning or locking of single discs
G11B17/028—Positioning or locking of single discs of discs rotating during transducing operation
G11B17/0287—Positioning or locking of single discs of discs rotating during transducing operation by permanent connections, e.g. screws, rivets
B—PERFORMING OPERATIONS; TRANSPORTING
B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
B23Q3/15—Devices for holding work using magnetic or electric force acting directly on the work
B23Q3/154—Stationary devices
B23Q3/1546—Stationary devices using permanent magnets
Abstract
1,095,242. Magnetic holding devices. INTERNATIONAL BUSINESS MACHINES CORPORATION. April 4, 1966 [April 26, 1965], No. 14754/66. Heading H1P. [Also in Divisions E2 and G5] A magnetic holding device for a disc 10, e.g. for magnetic recording comprises a coned shaft 11 (Fig. 3) on which a cylindrical flanged bush 20 is press-fitted and over which a polepiece 22 shaped as a flanged disc is fitted, together with a cylindrical bored permanent magnet 23 and a second polepiece 26 shaped as a flanged disc with its inwardly-extending flanges spaced at 32, from the disc portion of 22. Pole faces 31 formed on the outer face of the disc portion of 26 co-operate with poles 30 of disc 22 to retain a ring armature 15 mated to a non-magnetic support member 12 (Fig. 2) to which the recording disc 10 is clamped by a plate 13 and screws 14 of non-magnetic material. A coned cap 41 attached to support member 12 by a thin flexible member 42 (or a radial spider) engages the coned portion 40 of shaft 11 and centres the recording disc. On removal or replacement of the disc 10 and its support member from the magnet, the magnetic flux becomes concentrated in the flanges of 26 and the gaps 32 so that erasure of magnetic recordings from the disc 10 is prevented. An electromagnet supplied over rotary connections may replace the permanent magnet.
GB14754/66A
1965-04-26
1966-04-04
Magnetic holding device
Expired
GB1095242A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
US450704A
US3304527A
(en)
1965-04-26
1965-04-26
Magnetic holding and aligning device
Publications (1)
Publication Number
Publication Date
GB1095242A
true
GB1095242A
(en)
1967-12-13
Family
ID=23789167
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB14754/66A
Expired
GB1095242A
(en)
1965-04-26
1966-04-04
Magnetic holding device
Country Status (8)
Country
Link
US
(1)
US3304527A
(en)
BE
(1)
BE678976A
(en)
CH
(1)
CH439395A
(en)
DE
(1)
DE1244244B
(en)
ES
(1)
ES325891A1
(en)
GB
(1)
GB1095242A
(en)
NL
(1)
NL6605176A
(en)
SE
(1)
SE336485B
(en)
Cited By (5)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
JPS5044934Y1
(en)
*
1975-03-06
1975-12-20
GB2120443A
(en)
*
1982-03-05
1983-11-30
Eklund Trading Aps
Gramophone turntable apparatus
US4510592A
(en)
*
1978-07-05
1985-04-09
Universal Pioneer Corporation
Disk clamping device
GB2180413A
(en)
*
1982-07-27
1987-03-25
Papst Motoren Gmbh & Co Kg
Drive motor unit for signal-processing devices especially information-storage disk devices
CN113118972A
(en)
*
2021-04-05
2021-07-16
吴先斌
Automatic cutter feeding and discharging mechanism for numerical control cutter grinding machine
Families Citing this family (12)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
DE1928500U
(en)
*
1965-10-02
1965-12-02
Max Baermann
PERMANENT MAGNETIC ADHESIVE STRIP.
FR2196104A5
(en)
*
1972-08-07
1974-03-08
Sagem
US4082058A
(en)
*
1975-12-30
1978-04-04
Amerace Corporation
Apparatus for producing locking patches on magnetic screws
FR2418519A1
(en)
*
1978-02-24
1979-09-21
Thomson Csf
CASSETTE FOR VIDEODISC, AND VIDEODISC SUITABLE FOR SUCH A CASSETTE
JPS606938Y2
(en)
*
1980-08-14
1985-03-07
ソニー株式会社
Disc cassette for recording and playback
JPS593761A
(en)
*
1982-06-30
1984-01-10
Toshiba Corp
Magnetic disk device
US4480653A
(en)
*
1982-08-12
1984-11-06
Axelson, Inc.
In-service test valve
NL8300479A
(en)
*
1983-02-09
1984-09-03
Philips Nv
OPTICALLY READABLE PLATE.
US4587647A
(en)
*
1983-02-28
1986-05-06
Xerox Corporation
Media spindle clamp for disk drives utilizing removable recording media
US4825526A
(en)
*
1983-10-21
1989-05-02
C & C Metal Products Corporation
Magnetic fastener
US5048954A
(en)
*
1989-07-07
1991-09-17
Miradco
Laser-based wheel alignment system
US5302874A
(en)
*
1992-09-25
1994-04-12
Magnetic Bearing Technologies, Inc.
Magnetic bearing and method utilizing movable closed conductive loops
Family Cites Families (6)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US2492238A
(en)
*
1947-11-21
1949-12-27
Raymond B Roof
Magnetic stand with adjustable shunt
BE505468A
(en)
*
1951-04-23
US2792249A
(en)
*
1953-05-27
1957-05-14
Engineered Products Company
Magnetic catch assembly
US2815235A
(en)
*
1953-08-04
1957-12-03
Macy O Teetor
Magnetic catch
US3095525A
(en)
*
1958-01-20
1963-06-25
Crucible Steel Co America
Permanent magnet assembly
FR1272074A
(en)
*
1960-07-29
1961-09-22
Magnet applicable in particular in magnetic closures
1965
1965-04-26
US
US450704A
patent/US3304527A/en
not_active
Expired – Lifetime
1966
1966-03-24
DE
DEJ30422A
patent/DE1244244B/en
active
Pending
1966-04-04
BE
BE678976D
patent/BE678976A/xx
unknown
1966-04-04
GB
GB14754/66A
patent/GB1095242A/en
not_active
Expired
1966-04-19
NL
NL6605176A
patent/NL6605176A/xx
unknown
1966-04-22
CH
CH588166A
patent/CH439395A/en
unknown
1966-04-23
ES
ES0325891A
patent/ES325891A1/en
not_active
Expired
1966-04-26
SE
SE05620/66A
patent/SE336485B/xx
unknown
Cited By (5)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
JPS5044934Y1
(en)
*
1975-03-06
1975-12-20
US4510592A
(en)
*
1978-07-05
1985-04-09
Universal Pioneer Corporation
Disk clamping device
GB2120443A
(en)
*
1982-03-05
1983-11-30
Eklund Trading Aps
Gramophone turntable apparatus
GB2180413A
(en)
*
1982-07-27
1987-03-25
Papst Motoren Gmbh & Co Kg
Drive motor unit for signal-processing devices especially information-storage disk devices
CN113118972A
(en)
*
2021-04-05
2021-07-16
吴先斌
Automatic cutter feeding and discharging mechanism for numerical control cutter grinding machine
Also Published As
Publication number
Publication date
BE678976A
(en)
1966-09-16
SE336485B
(en)
1971-07-05
CH439395A
(en)
1967-07-15
DE1244244B
(en)
1967-07-13
US3304527A
(en)
1967-02-14
NL6605176A
(en)
1966-10-27
ES325891A1
(en)
1967-03-01
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None