GB679962A - Improvements in or relating to magnetic sound recording or reproducing media and magnetic sound recording or reproducing apparatus for use therewith - Google Patents

Improvements in or relating to magnetic sound recording or reproducing media and magnetic sound recording or reproducing apparatus for use therewith

Info

Publication number
GB679962A
GB679962A GB18783/49A GB1878349A GB679962A GB 679962 A GB679962 A GB 679962A GB 18783/49 A GB18783/49 A GB 18783/49A GB 1878349 A GB1878349 A GB 1878349A GB 679962 A GB679962 A GB 679962A
Authority
GB
United Kingdom
Prior art keywords
sound recording
magnetic sound
reproducing
relating
use therewith
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
GB18783/49A
Inventor
Bernard Traynor
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 GB18783/49A priority Critical patent/GB679962A/en
Publication of GB679962A publication Critical patent/GB679962A/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
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/72—Protective coatings, e.g. anti-static or antifriction

Landscapes

  • Paints Or Removers (AREA)

Abstract

679,962. Magnetic recording. ELECTRIC & MUSICAL INDUSTRIES, Ltd. July 17, 1950. [July 16, 1949] No. 18783/49. Class 40 (ii). A magnetic recording material such as a tape having a coating of magnetic material is rendered smooth to prevent wear by filling the surface with a wax such as carnauba, candelilla or montan, or by other materials such as stearin. It is preferred to apply the filler after manufacture of the tape by means of a pad mounted in the recording or reproducing machine at a point just prior to where the tape passes into contact with the transducer.
GB18783/49A 1949-07-16 1949-07-16 Improvements in or relating to magnetic sound recording or reproducing media and magnetic sound recording or reproducing apparatus for use therewith Expired GB679962A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB18783/49A GB679962A (en) 1949-07-16 1949-07-16 Improvements in or relating to magnetic sound recording or reproducing media and magnetic sound recording or reproducing apparatus for use therewith

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB18783/49A GB679962A (en) 1949-07-16 1949-07-16 Improvements in or relating to magnetic sound recording or reproducing media and magnetic sound recording or reproducing apparatus for use therewith

Publications (1)

Publication Number Publication Date
GB679962A true GB679962A (en) 1952-09-24

Family

ID=10118348

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18783/49A Expired GB679962A (en) 1949-07-16 1949-07-16 Improvements in or relating to magnetic sound recording or reproducing media and magnetic sound recording or reproducing apparatus for use therewith

Country Status (1)

Country Link
GB (1) GB679962A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2135175A1 (en) * 1971-05-06 1972-12-15 Burroughs Corp

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2135175A1 (en) * 1971-05-06 1972-12-15 Burroughs Corp

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