GB927443A - Improvements in or relating to apparatus for manufacturing magnetic recording media - Google Patents

Improvements in or relating to apparatus for manufacturing magnetic recording media

Info

Publication number
GB927443A
GB927443A GB2497658A GB2497658A GB927443A GB 927443 A GB927443 A GB 927443A GB 2497658 A GB2497658 A GB 2497658A GB 2497658 A GB2497658 A GB 2497658A GB 927443 A GB927443 A GB 927443A
Authority
GB
United Kingdom
Prior art keywords
web
coating means
length
roller
axis
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
GB2497658A
Inventor
William Soby
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.)
EMI Ltd
Electrical and Musical Industries Ltd
Original Assignee
EMI Ltd
Electrical and Musical 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 EMI Ltd, Electrical and Musical Industries Ltd filed Critical EMI Ltd
Priority to GB2497658A priority Critical patent/GB927443A/en
Publication of GB927443A publication Critical patent/GB927443A/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
    • G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
    • G11B5/842—Coating a support with a liquid magnetic dispersion
    • 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
    • G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Coating Apparatus (AREA)

Abstract

An apparatus for making magnetic recording media comprises means for transporting a web of base material past an elongated coating means capable of applying a thin continuous coating of magnetizable material, e.g. a suspension of gamma ferric oxide, to the web, the coating means being arranged so that its length is disposed at an angle appreciably different from 90 degrees with respect to the direction of movement of the web, and so that the coating means is uniformly spaced from the web along the length of the coating means. The coating means may be a trough having a narrow feed slot in its lower surface, or a roller, and the web is passed beneath the coating means over a horizontal, stationary surface which may be cylindrical or flat. The axis of the roller (or the length of the slot) may be arranged parallel to the axis of the cylinder, in which case the web is passed helically about the cylinder, or, where the web is passed over the flat surface, the length of the slot (or the axis of the roller) are inclined, e.g. at 45 degrees, to the direction of movement of the web.
GB2497658A 1958-08-02 1958-08-02 Improvements in or relating to apparatus for manufacturing magnetic recording media Expired GB927443A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2497658A GB927443A (en) 1958-08-02 1958-08-02 Improvements in or relating to apparatus for manufacturing magnetic recording media

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2497658A GB927443A (en) 1958-08-02 1958-08-02 Improvements in or relating to apparatus for manufacturing magnetic recording media

Publications (1)

Publication Number Publication Date
GB927443A true GB927443A (en) 1963-05-29

Family

ID=10220229

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2497658A Expired GB927443A (en) 1958-08-02 1958-08-02 Improvements in or relating to apparatus for manufacturing magnetic recording media

Country Status (1)

Country Link
GB (1) GB927443A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2377235A1 (en) * 1977-01-17 1978-08-11 Ibm DEVICE FOR APPLYING A VISCOUS FLUID TO A SUBSTRATE

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2377235A1 (en) * 1977-01-17 1978-08-11 Ibm DEVICE FOR APPLYING A VISCOUS FLUID TO A SUBSTRATE

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