GB1036897A - Creation of Inventions and Patents with Artificial Intelligence

GB1036897A – Improvements in or relating to methods of manufacturing yokes for magnetic heads
– Google Patents

GB1036897A – Improvements in or relating to methods of manufacturing yokes for magnetic heads
– Google Patents
Improvements in or relating to methods of manufacturing yokes for magnetic heads

Info

Publication number
GB1036897A

GB1036897A
GB17159/63A
GB1715963A
GB1036897A
GB 1036897 A
GB1036897 A
GB 1036897A
GB 17159/63 A
GB17159/63 A
GB 17159/63A
GB 1715963 A
GB1715963 A
GB 1715963A
GB 1036897 A
GB1036897 A
GB 1036897A
Authority
GB
United Kingdom
Prior art keywords
spacers
yokes
magnetic heads
assembly
gap
Prior art date
1962-05-04
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
GB17159/63A
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 Electronics UK Ltd

Original Assignee
Philips Electronic and Associated 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.)
1962-05-04
Filing date
1963-05-01
Publication date
1966-07-20

1963-05-01
Application filed by Philips Electronic and Associated Industries Ltd
filed
Critical
Philips Electronic and Associated Industries Ltd

1966-07-20
Publication of GB1036897A
publication
Critical
patent/GB1036897A/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

G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor

G11B5/127—Structure or manufacture of heads, e.g. inductive

G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features

G11B5/23—Gap features

G11B5/232—Manufacture of gap

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

G11B5/127—Structure or manufacture of heads, e.g. inductive

G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features

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

Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

Y10S228/00—Metal fusion bonding

Y10S228/903—Metal to nonmetal

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

Y10T29/49002—Electrical device making

Y10T29/4902—Electromagnet, transformer or inductor

Y10T29/49021—Magnetic recording reproducing transducer [e.g., tape head, core, etc.]

Y10T29/49032—Fabricating head structure or component thereof

Y10T29/49055—Fabricating head structure or component thereof with bond/laminating preformed parts, at least two magnetic

Y10T29/49057—Using glass bonding material

Abstract

1,036,897. Making magnetic heads. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. May 1, 1963, [May 4, 1962], No. 17159/63. Heading B3A. [Also in Division G5] In the manufacture of yokes for magnetic heads, two profiled core elements 1, 6 of sintered oxidic ferromagnetic material are placed together with their polished gap limiting surfaces facing each other and separated by spacers 4 equal in thickness to the desired gap, between each pair of spacers is provided a glass rod 5 of a volume at least 30% greater than that of the gap, the assembly is then heated under pressure to melt the glass whereby the two elements move together until separated by the spacers and after cooling, the assembly is divided into a plurality of yokes by a mechanical operation. The spacers may be of beryllium copper or mica and transverse grooves 12, Fig. 2 (not shown), are provided adjacent the spacers to prevent glass penetrating between the elements and spaces. Dividing of the assembly is effected by sawing.

GB17159/63A
1962-05-04
1963-05-01
Improvements in or relating to methods of manufacturing yokes for magnetic heads

Expired

GB1036897A
(en)

Applications Claiming Priority (1)

Application Number
Priority Date
Filing Date
Title

NL278093

1962-05-04

Publications (1)

Publication Number
Publication Date

GB1036897A
true

GB1036897A
(en)

1966-07-20

Family
ID=19753803
Family Applications (1)

Application Number
Title
Priority Date
Filing Date

GB17159/63A
Expired

GB1036897A
(en)

1962-05-04
1963-05-01
Improvements in or relating to methods of manufacturing yokes for magnetic heads

Country Status (6)

Country
Link

US
(1)

US3375575A
(en)

AT
(1)

AT255790B
(en)

CH
(1)

CH412378A
(en)

DK
(1)

DK108219C
(en)

GB
(1)

GB1036897A
(en)

NL
(2)

NL123062C
(en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

GB1227704A
(en)

1968-03-15
1971-04-07

US3688056A
(en)

1970-05-21
1972-08-29
Honeywell Inc
Magnetic transducer heads

US3737065A
(en)

1971-04-28
1973-06-05
Zenith Radio Corp
Envelope for, and method of processing, a color cathode-ray tube

JPS5427132B2
(en)

1974-02-21
1979-09-07

US4106173A
(en)

1975-06-13
1978-08-15
Olympus Optical Co., Ltd.
Method of manufacturing magnetic heads

JPS5217808A
(en)

1975-07-31
1977-02-10
Olympus Optical Co Ltd
Manufacturing method of magnetic head

US4173065A
(en)

1977-03-16
1979-11-06
Olympus Optical Co., Ltd.
Method of manufacturing a magnetic head

NL8003518A
(en)

1980-06-18
1982-01-18
Philips Nv

MAGNETIC HEAD, METHOD FOR MANUFACTURING A MAGNETIC HEAD.

JPS59203213A
(en)

1983-05-04
1984-11-17
Sumitomo Special Metals Co Ltd
Magnetic substrate of groove structure and its production

DE3626307A1
(en)

1986-08-02
1988-02-11
Grundig Emv

METHOD FOR ATTACHING A VIDEO MAGNETIC HEAD

Family Cites Families (9)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

US2346555A
(en)

1937-10-09
1944-04-11
Weston Electrical Instr Corp
Method of producing magnetic structures

NL66936C
(en)

1946-03-04

US2707694A
(en)

1950-10-19
1955-05-03
Standring Joseph Robert
Method of adhesively joining metal, wood and plastic parts

US2728054A
(en)

1951-09-20
1955-12-20
Steatite Res Corp
Ferromagnetic ceramic inductance core

US3094772A
(en)

1956-07-26
1963-06-25
Philips Corp
Method of producing magnetic heads with accurately predetermined gap heights

US3117367A
(en)

1958-07-03
1964-01-14
Philips Corp
Method of manufactuirng a magnetic head having a glass spacer

NL243050A
(en)

1959-09-05

US3079470A
(en)

1959-12-21
1963-02-26
Armour Res Found
Magnetic transducer head

NL277285A
(en)

1961-04-17

NL
NL278093D
patent/NL278093A/xx
unknown

NL
NL123062D
patent/NL123062C/xx
active

1963

1963-05-01
DK
DK205263AA
patent/DK108219C/en
active

1963-05-01
CH
CH548263A
patent/CH412378A/en
unknown

1963-05-01
GB
GB17159/63A
patent/GB1036897A/en
not_active
Expired

1963-05-02
AT
AT354863A
patent/AT255790B/en
active

1963-05-06
US
US278012A
patent/US3375575A/en
not_active
Expired – Lifetime

Also Published As

Publication number
Publication date

NL278093A
(en)

DK108219C
(en)

1967-10-16

US3375575A
(en)

1968-04-02

AT255790B
(en)

1967-07-25

NL123062C
(en)

CH412378A
(en)

1966-04-30

Contact information