GB1184823A - Method of Producing Multi-Track, Single or Multi-Gap, Ferritic Magnetic Reproducing and Recording Heads - Google Patents

Method of Producing Multi-Track, Single or Multi-Gap, Ferritic Magnetic Reproducing and Recording Heads

Info

Publication number
GB1184823A
GB1184823A GB1172267A GB1172267A GB1184823A GB 1184823 A GB1184823 A GB 1184823A GB 1172267 A GB1172267 A GB 1172267A GB 1172267 A GB1172267 A GB 1172267A GB 1184823 A GB1184823 A GB 1184823A
Authority
GB
United Kingdom
Prior art keywords
mouldings
gap
track
heads
magnetic
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
GB1172267A
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.)
INST MASZ MATEMATYCZNYCH
Original Assignee
INST MASZ MATEMATYCZNYCH
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
Priority claimed from PL113464A external-priority patent/PL54159B1/pl
Application filed by INST MASZ MATEMATYCZNYCH filed Critical INST MASZ MATEMATYCZNYCH
Publication of GB1184823A publication Critical patent/GB1184823A/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
    • 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
    • G11B5/1272—Assembling or shaping of elements
    • 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
    • G11B5/29—Structure or manufacture of unitary devices formed of plural heads for more than one track

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)

Abstract

1,184,823. Making multi-track magnetic recording and reproducing heads. INSTYTUT MASZYN MATEMATYCZNYCH. 13 March, 1967 [12 March, 1966; 17 Jan., 1967], No. 11722/67. Heading G5R. A method of producing multi-track, single or multigap ferritic magnetic heads for recording and reproducing, comprises the steps of grinding at least two ferritic mouldings to a predetermined shape, aligning the mouldings apart to define an operational gap, pouring a liquid bonding material prepared from pulverized glass into the gap to form a glass bond between the two mouldings, gluing the bonded mouldings to a plate 8, carrying out machining operations on the mouldings including cutting the mouldings to form elementary heads disposed in tracks and each comprising two cores each of which has a magnetic pole adjacent the gap and a narrowed portion for a coil, positioning on the mouldings components including coils 11, screens 12, 14, anti-magnetic spacers 15, and armatures (16), Fig. 4 (not shown), covering the assembled unit with an epoxy resin, removing the plate 8, mounting the assembled unit in a housing 20, and removing excess material beyond an axis 4 to magnetically separate the elementary heads and shape the front of the multi-track head.
GB1172267A 1966-03-12 1967-03-13 Method of Producing Multi-Track, Single or Multi-Gap, Ferritic Magnetic Reproducing and Recording Heads Expired GB1184823A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PL113464A PL54159B1 (en) 1966-03-12
PL118532A PL55826B1 (en) 1967-01-17

Publications (1)

Publication Number Publication Date
GB1184823A true GB1184823A (en) 1970-03-18

Family

ID=26652799

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1172267A Expired GB1184823A (en) 1966-03-12 1967-03-13 Method of Producing Multi-Track, Single or Multi-Gap, Ferritic Magnetic Reproducing and Recording Heads

Country Status (5)

Country Link
BE (1) BE695332A (en)
DE (1) DE1524778A1 (en)
FR (1) FR1514537A (en)
GB (1) GB1184823A (en)
NL (1) NL6703780A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0116450A2 (en) * 1983-02-08 1984-08-22 Ampex Corporation A monolithic multichannel multistack magnetic transducer assembly and method of manufacturing thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3544982A (en) * 1968-05-01 1970-12-01 Rca Corp Multi-head magnetic transducer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0116450A2 (en) * 1983-02-08 1984-08-22 Ampex Corporation A monolithic multichannel multistack magnetic transducer assembly and method of manufacturing thereof
EP0116450A3 (en) * 1983-02-08 1987-01-14 Ampex Corporation A monolithic multichannel multistack magnetic transducer assembly and method of manufacturing thereof

Also Published As

Publication number Publication date
NL6703780A (en) 1967-09-13
BE695332A (en) 1967-08-14
FR1514537A (en) 1968-02-23
DE1524778A1 (en) 1970-10-08

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Legal Events

Date Code Title Description
PS Patent sealed
429A Application made for amendment of specification (sect. 29/1949)
429D Case decided by the comptroller ** specification amended (sect. 29/1949)
429H Application (made) for amendment of specification now open to opposition (sect. 29/1949)

Free format text: INPADOC CORRECTION: JOURNAL 4256, PAGE 3200 FOR 184823 READ 1184823

PLNP Patent lapsed through nonpayment of renewal fees