GB970870A - Improvements in and relating to magnetic devices - Google Patents

Improvements in and relating to magnetic devices

Info

Publication number
GB970870A
GB970870A GB2723961A GB2723961A GB970870A GB 970870 A GB970870 A GB 970870A GB 2723961 A GB2723961 A GB 2723961A GB 2723961 A GB2723961 A GB 2723961A GB 970870 A GB970870 A GB 970870A
Authority
GB
United Kingdom
Prior art keywords
track
heads
tape
grooves
july
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
GB2723961A
Inventor
Donovan Farrant Cliff
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.)
Cosmocord Ltd
Original Assignee
Cosmocord 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 Cosmocord Ltd filed Critical Cosmocord Ltd
Priority to GB2723961A priority Critical patent/GB970870A/en
Publication of GB970870A publication Critical patent/GB970870A/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
    • G11B5/1871—Shaping or contouring of the transducing or guiding surface

Landscapes

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

Abstract

970,870. Making magnetic heads. COSMOCORD Ltd. July 27, 1962 [July 27, 1961], No. 27239/61. Heading B3A. [Also in Division G5] A quarter-track type magnetic tape-recording &c. head has the transducing portions of the heads defined in track-width and in track-totrack spacing by assembling overwide head units 1, 2 in a stack, which may include an interhead screen 4, and gang-milling shallow grooves 13-16 such that the faces 5, 6 of the heads, adjacent the tape 7 are left with the desired width W 1 , W 2 , track-to-track space S 1 and desired margins, S 2 S 3 , relative to the ends of the stack. The grooves 13-16 are filled with epoxy resin and the tape-contacting face polished in normal manner. The method (with only two grooves) may also be used to make single-track heads, and more generally to magnetic devices requiring precise polar dimensions.
GB2723961A 1961-07-27 1961-07-27 Improvements in and relating to magnetic devices Expired GB970870A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2723961A GB970870A (en) 1961-07-27 1961-07-27 Improvements in and relating to magnetic devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2723961A GB970870A (en) 1961-07-27 1961-07-27 Improvements in and relating to magnetic devices

Publications (1)

Publication Number Publication Date
GB970870A true GB970870A (en) 1964-09-23

Family

ID=10256368

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2723961A Expired GB970870A (en) 1961-07-27 1961-07-27 Improvements in and relating to magnetic devices

Country Status (1)

Country Link
GB (1) GB970870A (en)

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