GB727456A - Improvements in or relating to discs for sound recording and reproduction - Google Patents

Improvements in or relating to discs for sound recording and reproduction

Info

Publication number
GB727456A
GB727456A GB20830/53A GB2083053A GB727456A GB 727456 A GB727456 A GB 727456A GB 20830/53 A GB20830/53 A GB 20830/53A GB 2083053 A GB2083053 A GB 2083053A GB 727456 A GB727456 A GB 727456A
Authority
GB
United Kingdom
Prior art keywords
discs
reproduction
relating
sound recording
silicone
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
GB20830/53A
Other languages
English (en)
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.)
Rhone Poulenc SA
Original Assignee
Rhone Poulenc SA
Societe des Usines Chimiques Rhone Poulenc SA
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 Rhone Poulenc SA, Societe des Usines Chimiques Rhone Poulenc SA filed Critical Rhone Poulenc SA
Publication of GB727456A publication Critical patent/GB727456A/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
    • G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
    • G11B3/68—Record carriers
    • G11B3/70—Record carriers characterised by the selection of material or structure; Processes or apparatus specially adapted for manufacturing record carriers
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/23—Magnetisable or magnetic paints or lacquers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
    • G11B3/58—Cleaning record carriers or styli, e.g. removing shavings or dust or electrostatic charges
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
    • G11B3/68—Record carriers
    • G11B3/70—Record carriers characterised by the selection of material or structure; Processes or apparatus specially adapted for manufacturing record carriers
    • G11B3/705—Record carriers characterised by the selection of material or structure; Processes or apparatus specially adapted for manufacturing record carriers characterised by the selection of the material only
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
GB20830/53A 1953-02-12 1953-07-27 Improvements in or relating to discs for sound recording and reproduction Expired GB727456A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1074871T 1953-02-12

Publications (1)

Publication Number Publication Date
GB727456A true GB727456A (en) 1955-03-30

Family

ID=9606799

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20830/53A Expired GB727456A (en) 1953-02-12 1953-07-27 Improvements in or relating to discs for sound recording and reproduction

Country Status (4)

Country Link
BE (1) BE521395A (enrdf_load_stackoverflow)
CH (1) CH313410A (enrdf_load_stackoverflow)
FR (1) FR1074871A (enrdf_load_stackoverflow)
GB (1) GB727456A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2127841A (en) * 1982-09-10 1984-04-18 Arwyn Oswald Thomas Charles Inclusion of oil emulsion in gramophone record cleaning fluids

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3833408A (en) * 1972-04-19 1974-09-03 Rca Corp Video discs having a methyl alkyl silicone coating
JPS5554378A (en) 1978-08-04 1980-04-21 Cbs Records Article surface treating and cleaning agent
IT1123480B (it) * 1978-08-29 1986-04-30 Rca Corp Lubrificanti per videodischi
US4216970A (en) * 1979-03-05 1980-08-12 Rca Corporation Video disc lubricants
DE3319794C2 (de) * 1983-06-01 1985-03-21 Hoechst Ag, 6230 Frankfurt Flüssiges Schallplattenpflegemittel mit Siliconöl und dessen Verwendung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2127841A (en) * 1982-09-10 1984-04-18 Arwyn Oswald Thomas Charles Inclusion of oil emulsion in gramophone record cleaning fluids

Also Published As

Publication number Publication date
BE521395A (enrdf_load_stackoverflow)
FR1074871A (fr) 1954-10-11
CH313410A (fr) 1956-04-15

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