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GB1535812A - Magnetic transducer head - Google Patents

Magnetic transducer head

Info

Publication number
GB1535812A
GB1535812A GB2468776A GB2468776A GB1535812A GB 1535812 A GB1535812 A GB 1535812A GB 2468776 A GB2468776 A GB 2468776A GB 2468776 A GB2468776 A GB 2468776A GB 1535812 A GB1535812 A GB 1535812A
Authority
GB
United Kingdom
Prior art keywords
housing
coil
core
cores
cavity
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
GB2468776A
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.)
Filing date
Publication date
Application filed by Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1535812A publication Critical patent/GB1535812A/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
    • G11B5/10—Structure or manufacture of housings or shields for heads
    • 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
    • G11B5/265—Structure or manufacture of a head with more than one gap for erasing, recording or reproducing on the same track

Landscapes

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

Abstract

1535812 Magnetic heads PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 15 June 1976 [18 June 1975] 24687/76 Heading G5R A magnetic head has a one-piece non-magnetic housing 1 having a coil-receiving cavity 6 opening into a rear face 7 thereof opposite a record medium-contacting front face 5 and C- core receiving slots 10, 11 extending in respective side faces of the housing and each opening at one end into the cavity 6 and at the other end into the front face 5, slots 10, 11 and cavity 6 being accessible from the outside of the housing. A single track erase head has a glass fibrereinforced synthetic resin housing 1 with the rear parts 20 of C-cores 15 engaging in a central opening 21 of coil 14 and the front parts 22 abutting against a gap-forming spacer 13 integral with housing 1. Housing 1 also has integrally formed therewith a tape guide 25, projections 4 to mount the head on a support by means of screws received in slots 3, and pins 23 around which the coil ends 24 are wound and at which soldered connections to coil 14 are made. Guide 25 may alternatively be a separate part received in another aperture in the housing 1. Cores 15 and coil 14 are secured in the housing 1 by a flexible adhesive. An alternative head, Fig. 4 (not shown), has a central I-core (57) between two C-cores (52), a front part of the I-core (57) projecting to the tape contact face (35) through an aperture (56) in the housing part (42) between face (35) and coil cavity (36), a central part of I-core (57) carrying the coil (44), rear ends (50) of C-cores (45) abutting the rear end of the I-core, and two gap-forming spacers (43) integral with the housing being sandwiched between the I-core (57) and front parts (52) of respective C-cores (45). Multitrack heads may be similarly produced.
GB2468776A 1975-06-18 1976-06-15 Magnetic transducer head Expired GB1535812A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT467575A AT343929B (en) 1975-06-18 1975-06-18 MAGNETIC HEAD

Publications (1)

Publication Number Publication Date
GB1535812A true GB1535812A (en) 1978-12-13

Family

ID=3566952

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2468776A Expired GB1535812A (en) 1975-06-18 1976-06-15 Magnetic transducer head

Country Status (9)

Country Link
JP (1) JPS522513A (en)
AT (1) AT343929B (en)
DE (1) DE2625464C3 (en)
ES (1) ES448930A1 (en)
FR (1) FR2316685A1 (en)
GB (1) GB1535812A (en)
HK (1) HK56379A (en)
IT (1) IT1061464B (en)
NL (1) NL7606484A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4176384A (en) * 1978-05-15 1979-11-27 Yang Electromagnetics Systems Inc. Magnetic recording head assembly defining precision gaps
JPH0426969Y2 (en) * 1985-03-20 1992-06-29
JPS62251008A (en) * 1986-04-21 1987-10-31 Topy Ind Ltd Sizing machine
JPH05342708A (en) * 1992-06-10 1993-12-24 Alps Electric Co Ltd Tape guide and magnetic head device
JP2869843B2 (en) * 1993-10-20 1999-03-10 強化土エンジニヤリング株式会社 Chemical for ground injection
JP2961484B2 (en) * 1993-12-14 1999-10-12 強化土エンジニヤリング株式会社 Chemical solution for ground injection and ground injection method using this liquid

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT216233B (en) * 1959-09-03 1961-07-10 Wiener Radiowerke Ag Core holder for multi-track erase heads
FR1266380A (en) * 1960-09-01 1961-07-07 Philips Nv Core holder for magnetic multi-track erasing heads
US3234338A (en) * 1961-10-02 1966-02-08 Ex Cell O Corp Electromagnetic transducers
DE1499653A1 (en) * 1966-04-06 1970-05-14 Grundig Emv Magnetic head
US3577191A (en) * 1968-08-05 1971-05-04 Ibm Magnetic head assembly with sidebar

Also Published As

Publication number Publication date
JPS564965B2 (en) 1981-02-02
DE2625464A1 (en) 1976-12-23
AT343929B (en) 1978-06-26
ES448930A1 (en) 1977-07-01
DE2625464C3 (en) 1981-04-30
HK56379A (en) 1979-08-17
JPS522513A (en) 1977-01-10
DE2625464B2 (en) 1980-09-11
IT1061464B (en) 1983-02-28
ATA467575A (en) 1977-10-15
FR2316685B1 (en) 1982-02-26
NL7606484A (en) 1976-12-21
FR2316685A1 (en) 1977-01-28

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee