GB879600A - Multiple track magnetic recording head - Google Patents

Multiple track magnetic recording head

Info

Publication number
GB879600A
GB879600A GB1911059A GB1911059A GB879600A GB 879600 A GB879600 A GB 879600A GB 1911059 A GB1911059 A GB 1911059A GB 1911059 A GB1911059 A GB 1911059A GB 879600 A GB879600 A GB 879600A
Authority
GB
United Kingdom
Prior art keywords
magnetic
blocks
screen
core
alloy
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
GB1911059A
Inventor
Laszlo Namenyi-Katz
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.)
Vectron Electro Physics Ltd
Original Assignee
Vectron Electro Physics 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
Priority to NL253072D priority Critical patent/NL253072A/xx
Application filed by Vectron Electro Physics Ltd filed Critical Vectron Electro Physics Ltd
Priority to GB1911059A priority patent/GB879600A/en
Publication of GB879600A publication Critical patent/GB879600A/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
    • G11B5/29—Structure or manufacture of unitary devices formed of plural heads for more than one track
    • G11B5/295—Manufacture
    • 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
    • G11B5/17—Construction or disposition of windings
    • 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
    • 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

879,600. Magnetic recording &c. heads. VECTRON ELECTRO-PHYSICS Ltd. May 16, 1960 [June 4, 1959; Dec. 2, 1959], Nos. 19110/59 and 41033/59. Class 40 (2). A stacked magnetic head comprises relatively thin polepieces of highly permeable magnetic alloy 13, 14, mounted to a pair of non-magnetic blocks 11, 12, the alloy being divided into separate heads 19, 20, 21, 22 by photo-chemical etching, leaving cross-talk screening strips 23, 24, 25. Ferrite cores, Fig. 2, are arranged about the blocks 11, 12 to contact the polepieces, where they overlap the blocks at 30, 31. Recesses 33 accommodate windings 34. Magnetic and electric screening plates are arranged on each side of each core, the electric screen 42, contacting the further side of the core in Fig. 2 being extended to enter the gap between the polepiece 19 and the polepiece screen 23, while the magnetic screen 41 is arranged to abut the screen 23. A common, aligned transducing gap may be achieved in all the heads by attaching a sheet of alloy to a block which is later divided into the blocks 11, 12 abutting a gap-spacer 15. The windings may be divided about the core (Fig. 4, not shown), to reduce spurious pick-up and the cores may carry an additional feed-back winding.
GB1911059A 1959-06-04 1959-06-04 Multiple track magnetic recording head Expired GB879600A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
NL253072D NL253072A (en) 1959-06-04
GB1911059A GB879600A (en) 1959-06-04 1959-06-04 Multiple track magnetic recording head

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1911059A GB879600A (en) 1959-06-04 1959-06-04 Multiple track magnetic recording head
GB347660 1960-02-01

Publications (1)

Publication Number Publication Date
GB879600A true GB879600A (en) 1961-10-11

Family

ID=26238335

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1911059A Expired GB879600A (en) 1959-06-04 1959-06-04 Multiple track magnetic recording head

Country Status (2)

Country Link
GB (1) GB879600A (en)
NL (1) NL253072A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS479412U (en) * 1971-02-24 1972-10-04
JPS4888009U (en) * 1972-01-25 1973-10-24
EP0047383A1 (en) * 1980-09-02 1982-03-17 International Business Machines Corporation Multitrack magnetic head and method of manufacture thereof
EP0094382A1 (en) * 1981-11-24 1983-11-23 Eastman Technology, Inc. Multitrack magnetic head employing double helix structure and method of making same
WO1986000457A1 (en) * 1981-04-15 1986-01-16 Eastman Kodak Company Multitrack magnetic head
EP0337879A1 (en) * 1988-04-15 1989-10-18 Commissariat A L'energie Atomique Device for writing on and reading from a magnetic carrier, and process for its production

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS479412U (en) * 1971-02-24 1972-10-04
JPS4888009U (en) * 1972-01-25 1973-10-24
EP0047383A1 (en) * 1980-09-02 1982-03-17 International Business Machines Corporation Multitrack magnetic head and method of manufacture thereof
WO1986000457A1 (en) * 1981-04-15 1986-01-16 Eastman Kodak Company Multitrack magnetic head
EP0094382A1 (en) * 1981-11-24 1983-11-23 Eastman Technology, Inc. Multitrack magnetic head employing double helix structure and method of making same
EP0094382A4 (en) * 1981-11-24 1984-05-17 Eastman Technology Multitrack magnetic head employing double helix structure and method of making same.
EP0337879A1 (en) * 1988-04-15 1989-10-18 Commissariat A L'energie Atomique Device for writing on and reading from a magnetic carrier, and process for its production
FR2630244A1 (en) * 1988-04-15 1989-10-20 Commissariat Energie Atomique DEVICE FOR WRITING AND READING ON A MAGNETIC MEDIUM AND METHOD FOR MANUFACTURING THE SAME
US4992897A (en) * 1988-04-15 1991-02-12 Commissariat A L'energie Atomique Device for reading and writing on a magnetic medium

Also Published As

Publication number Publication date
NL253072A (en)

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