GB320965A - Improvements in gramophone records and methods of manufacture thereof - Google Patents

Improvements in gramophone records and methods of manufacture thereof

Info

Publication number
GB320965A
GB320965A GB2212528A GB2212528A GB320965A GB 320965 A GB320965 A GB 320965A GB 2212528 A GB2212528 A GB 2212528A GB 2212528 A GB2212528 A GB 2212528A GB 320965 A GB320965 A GB 320965A
Authority
GB
United Kingdom
Prior art keywords
agent
manufacture
glue
methods
flexing
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
GB2212528A
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 GB2212528A priority Critical patent/GB320965A/en
Publication of GB320965A publication Critical patent/GB320965A/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

  • Holding Or Fastening Of Disk On Rotational Shaft (AREA)

Abstract

320,965. Thornton, J. E. July 31, 1928. Addition to 319,038, [Class 40 (ii), Phonographs &c.]. Adhesives.-In making gramophone record blanks by cementing together two sheets of paper coated with chemically-hardened glue or gelatine,. an adhestive is used which may consist of a solution of glue and chrome or potash alum in water, suitable proportions being specified. A thick flexible layer may be formed between the paperlayers by adding a considerable quantity of a flexing agent, such as molasses, glycerine or sugar, tothe colloidal adhesive : or a very stiff compositesheet may be formed by omitting the flexing agent and Increasing the amount of the hardening- agent.
GB2212528A 1928-07-31 1928-07-31 Improvements in gramophone records and methods of manufacture thereof Expired GB320965A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2212528A GB320965A (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
GB2212528A GB320965A (en) 1928-07-31 1928-07-31 Improvements in gramophone records and methods of manufacture thereof

Publications (1)

Publication Number Publication Date
GB320965A true GB320965A (en) 1929-10-31

Family

ID=10174295

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2212528A Expired GB320965A (en) 1928-07-31 1928-07-31 Improvements in gramophone records and methods of manufacture thereof

Country Status (1)

Country Link
GB (1) GB320965A (en)

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