GB320964A - Improvements in gramophone records and methods of manufacture thereof - Google Patents

Improvements in gramophone records and methods of manufacture thereof

Info

Publication number
GB320964A
GB320964A GB2212428A GB2212428A GB320964A GB 320964 A GB320964 A GB 320964A GB 2212428 A GB2212428 A GB 2212428A GB 2212428 A GB2212428 A GB 2212428A GB 320964 A GB320964 A GB 320964A
Authority
GB
United Kingdom
Prior art keywords
alum
web
sheet
gramophone records
parent specification
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
GB2212428A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB2212428A priority Critical patent/GB320964A/en
Publication of GB320964A publication Critical patent/GB320964A/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

Landscapes

  • Adornments (AREA)

Abstract

320,964. Thornton, J. E. July 31, 1928. Addition to 319,038. Multiple superposed coatings. - Consists in making gramophone records, of the kind claimed in the parent Specification, with a core of papermaterial which has been toughened by parchmentizing. A sheet or web of the material, such as that known as hydrolized paper or board, is first coated with an adhesive substratum consisting for example of a solution of glue and' alum in water. Several coatings, successively dried, may be applied. A record-receiving layer, consisting of a thick solution of gelatine or glue mixed with a flexing agent such as molasses, sugar, or glycerine, and a chemical hardener such as alum, is then superposed on the substratum, the sheet or web being finally dried before the sound-groove is impressed. Alternative methods of hardening, such as are described in the parent Specification, may be employed.
GB2212428A 1928-07-31 1928-07-31 Improvements in gramophone records and methods of manufacture thereof Expired GB320964A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2212428A GB320964A (en) 1928-07-31 1928-07-31 Improvements in gramophone records and methods of manufacture thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2212428A GB320964A (en) 1928-07-31 1928-07-31 Improvements in gramophone records and methods of manufacture thereof

Publications (1)

Publication Number Publication Date
GB320964A true GB320964A (en) 1929-10-31

Family

ID=10174282

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2212428A Expired GB320964A (en) 1928-07-31 1928-07-31 Improvements in gramophone records and methods of manufacture thereof

Country Status (1)

Country Link
GB (1) GB320964A (en)

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