GB357571A - A process of and apparatus for the production of gramophone records from celluloid-like substances - Google Patents

A process of and apparatus for the production of gramophone records from celluloid-like substances

Info

Publication number
GB357571A
GB357571A GB19238/30A GB1923830A GB357571A GB 357571 A GB357571 A GB 357571A GB 19238/30 A GB19238/30 A GB 19238/30A GB 1923830 A GB1923830 A GB 1923830A GB 357571 A GB357571 A GB 357571A
Authority
GB
United Kingdom
Prior art keywords
production
celluloid
substances
gramophone records
june
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
GB19238/30A
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.)
BIBERPHON SCHALLPLATTEN HERSTE
Original Assignee
BIBERPHON SCHALLPLATTEN HERSTE
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 BIBERPHON SCHALLPLATTEN HERSTE filed Critical BIBERPHON SCHALLPLATTEN HERSTE
Publication of GB357571A publication Critical patent/GB357571A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2017/00—Carriers for sound or information
    • B29L2017/001—Carriers of records containing fine grooves or impressions, e.g. disc records for needle playback, cylinder records
    • B29L2017/003—Records or discs

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Particle Formation And Scattering Control In Inkjet Printers (AREA)
  • Control Of Resistance Heating (AREA)

Abstract

357,571. Electric resistance ovens. BIBERPHON-SCHALLPLATTENHERSTELLUNGS-UND VERTRIEBSGES., 121, Uhlandstrasse, Wilmersdorf, Berlin. June 24, 1930, No. 19238. Convention date, June 5. [Class 39 (iii).] An open electric oven for use in the production of gramophone records consists of a number of shallow compartments r formed by shelves t in which are embedded electric resistances s, s<1>, s<2> which are graded so that the most powerful element s<2> is on the outside and the weakest s is inside, thus ensuring uniform heating of the open oven. The elements are connected in series and each shelf t can be switched on independently.
GB19238/30A 1930-06-05 1930-06-24 A process of and apparatus for the production of gramophone records from celluloid-like substances Expired GB357571A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT357571X 1930-06-05

Publications (1)

Publication Number Publication Date
GB357571A true GB357571A (en) 1931-09-24

Family

ID=3672632

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19238/30A Expired GB357571A (en) 1930-06-05 1930-06-24 A process of and apparatus for the production of gramophone records from celluloid-like substances

Country Status (1)

Country Link
GB (1) GB357571A (en)

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