GB839829A - Improvements in or relating to processes for the manufacture of gramophone records and presses therefor - Google Patents

Improvements in or relating to processes for the manufacture of gramophone records and presses therefor

Info

Publication number
GB839829A
GB839829A GB28747/58A GB2874758A GB839829A GB 839829 A GB839829 A GB 839829A GB 28747/58 A GB28747/58 A GB 28747/58A GB 2874758 A GB2874758 A GB 2874758A GB 839829 A GB839829 A GB 839829A
Authority
GB
United Kingdom
Prior art keywords
manufacture
therefor
presses
relating
processes
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
GB28747/58A
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.)
Deutsche Grammophon GmbH
Original Assignee
Deutsche Grammophon GmbH
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 Deutsche Grammophon GmbH filed Critical Deutsche Grammophon GmbH
Publication of GB839829A publication Critical patent/GB839829A/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)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

839,829. Gramophone record manufacture. DEUTSCHE GRAMMOPHON G.m.b.H. Sept. 8, 1958 [Sept. 9, 1957], No. 28747/58. Drawings to Specification. Class 40 (2). A method of pressing gramophone records uses a new type of press, wherein the die sets are alternatively fed to hot and cold regions in the machine. The saving in thermal inertia results in faster production.
GB28747/58A 1957-09-09 1958-09-08 Improvements in or relating to processes for the manufacture of gramophone records and presses therefor Expired GB839829A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE839829X 1957-09-09

Publications (1)

Publication Number Publication Date
GB839829A true GB839829A (en) 1960-06-29

Family

ID=6762039

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28747/58A Expired GB839829A (en) 1957-09-09 1958-09-08 Improvements in or relating to processes for the manufacture of gramophone records and presses therefor

Country Status (1)

Country Link
GB (1) GB839829A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4439394A (en) * 1982-11-05 1984-03-27 Owens-Illinois, Inc. Heat setting method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4439394A (en) * 1982-11-05 1984-03-27 Owens-Illinois, Inc. Heat setting method

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