GB1103429A - Magnetic recording and reproducing head - Google Patents

Magnetic recording and reproducing head

Info

Publication number
GB1103429A
GB1103429A GB3134465A GB3134465A GB1103429A GB 1103429 A GB1103429 A GB 1103429A GB 3134465 A GB3134465 A GB 3134465A GB 3134465 A GB3134465 A GB 3134465A GB 1103429 A GB1103429 A GB 1103429A
Authority
GB
United Kingdom
Prior art keywords
magnetic recording
reproducing head
core
permeability
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
GB3134465A
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.)
Emerson Process Management Ltd
Original Assignee
Rosemount Engineering Co 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 Rosemount Engineering Co Ltd filed Critical Rosemount Engineering Co Ltd
Publication of GB1103429A publication Critical patent/GB1103429A/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
    • G11B5/187—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
    • 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
    • G11B5/245—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features comprising means for controlling the reluctance of the magnetic circuit in a head with single gap, for co-operation with one track

Landscapes

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

Abstract

1,103,429. Magnetic heads. ROSEMOUNT ENGINEERING CO. 22 July, 1965 [10 Aug., 1964], No. 31344/65. Heading G5R. The gap in a magnetic transducer core is filled with a first material having a low permeability and a second material having a permeability intermediate that of the first material, and that of the core.
GB3134465A 1964-08-10 1965-07-22 Magnetic recording and reproducing head Expired GB1103429A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US38837864A 1964-08-10 1964-08-10

Publications (1)

Publication Number Publication Date
GB1103429A true GB1103429A (en) 1968-02-14

Family

ID=23533868

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3134465A Expired GB1103429A (en) 1964-08-10 1965-07-22 Magnetic recording and reproducing head

Country Status (2)

Country Link
DE (1) DE1474452A1 (en)
GB (1) GB1103429A (en)

Also Published As

Publication number Publication date
DE1474452A1 (en) 1969-09-04

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