GB766823A - Magnetic recording surfaces - Google Patents

Magnetic recording surfaces

Info

Publication number
GB766823A
GB766823A GB1218254A GB1218254A GB766823A GB 766823 A GB766823 A GB 766823A GB 1218254 A GB1218254 A GB 1218254A GB 1218254 A GB1218254 A GB 1218254A GB 766823 A GB766823 A GB 766823A
Authority
GB
United Kingdom
Prior art keywords
magnetic recording
april
coating
magnetic
recording surfaces
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
GB1218254A
Inventor
Lewis James Page
William Leslie Gleed
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.)
National Research Development Corp UK
Original Assignee
National Research Development Corp UK
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 National Research Development Corp UK filed Critical National Research Development Corp UK
Priority to GB1218254A priority Critical patent/GB766823A/en
Publication of GB766823A publication Critical patent/GB766823A/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
    • G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
    • G11B5/702—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the bonding agent
    • G11B5/7023—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the bonding agent containing polyesters, polyethers, silicones, polyvinyl resins, polyacrylresins or epoxy resins

Landscapes

  • Manufacturing Of Magnetic Record Carriers (AREA)

Abstract

766,823. Magnetic structures. NATIONAL RESEARCH DEVELOPMENT CORPORATION. April 18, 1955 [April 27, 1954], No. 12182/54. Class 38 (2). A magnetic recording element is made by coating a surface, e.g. a drum, disc or tape, after cleaning and treating with emery, with a solution of magnetic oxide and epoxy resin such as is sold under the Registered Trade Mark " Araldite ", in acetone. The coating may be sprayed on and subsequently heated.
GB1218254A 1954-04-27 1954-04-27 Magnetic recording surfaces Expired GB766823A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1218254A GB766823A (en) 1954-04-27 1954-04-27 Magnetic recording surfaces

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1218254A GB766823A (en) 1954-04-27 1954-04-27 Magnetic recording surfaces

Publications (1)

Publication Number Publication Date
GB766823A true GB766823A (en) 1957-01-23

Family

ID=9999839

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1218254A Expired GB766823A (en) 1954-04-27 1954-04-27 Magnetic recording surfaces

Country Status (1)

Country Link
GB (1) GB766823A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4756355A (en) * 1986-05-22 1988-07-12 Foseco International Limited Refractory hollowware and method of casting using hollowware to remove non-metallic inclusions from molten metal

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4756355A (en) * 1986-05-22 1988-07-12 Foseco International Limited Refractory hollowware and method of casting using hollowware to remove non-metallic inclusions from molten metal
US4913403A (en) * 1986-05-22 1990-04-03 Foseco International Limited Runner system and article for the casting of metals

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