CH544986A - Process for the production of a centerable matrix, with the help of a lacquer film, for the production of records and video discs - Google Patents

Process for the production of a centerable matrix, with the help of a lacquer film, for the production of records and video discs

Info

Publication number
CH544986A
CH544986A CH1696371A CH1696371A CH544986A CH 544986 A CH544986 A CH 544986A CH 1696371 A CH1696371 A CH 1696371A CH 1696371 A CH1696371 A CH 1696371A CH 544986 A CH544986 A CH 544986A
Authority
CH
Switzerland
Prior art keywords
production
centerable
records
help
matrix
Prior art date
Application number
CH1696371A
Other languages
German (de)
Inventor
Knothe Herbert
Roeschmann Klaus
Rohwer Werner
Original Assignee
Teldec Telefunken Decca
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 Teldec Telefunken Decca filed Critical Teldec Telefunken Decca
Publication of CH544986A publication Critical patent/CH544986A/en

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)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Chemically Coating (AREA)
  • Holding Or Fastening Of Disk On Rotational Shaft (AREA)
CH1696371A 1970-11-23 1971-11-22 Process for the production of a centerable matrix, with the help of a lacquer film, for the production of records and video discs CH544986A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2057478A DE2057478C3 (en) 1970-11-23 1970-11-23 Process for the production of centered press dies for records and video discs

Publications (1)

Publication Number Publication Date
CH544986A true CH544986A (en) 1973-11-30

Family

ID=5788855

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1696371A CH544986A (en) 1970-11-23 1971-11-22 Process for the production of a centerable matrix, with the help of a lacquer film, for the production of records and video discs

Country Status (11)

Country Link
US (1) US3749828A (en)
JP (1) JPS5426881B1 (en)
AT (1) AT320306B (en)
BE (1) BE775667A (en)
CH (1) CH544986A (en)
DE (1) DE2057478C3 (en)
FR (1) FR2115346B1 (en)
GB (1) GB1367798A (en)
IT (1) IT939167B (en)
NL (1) NL7115842A (en)
SE (1) SE365745B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2807856A1 (en) * 1978-02-23 1979-09-06 Mfe Corp POSITIONING DEVICE
US4472124A (en) * 1980-09-05 1984-09-18 Matsushita Electric Industrial Co., Limited Device for producing an information recording disk

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1253374A (en) * 1916-08-21 1918-01-15 Bertram M Hansen Centering means for phonographic records and the like.
US1755743A (en) * 1928-11-02 1930-04-22 Edgar H Morrison Phonograph disk record

Also Published As

Publication number Publication date
AT320306B (en) 1975-02-10
NL7115842A (en) 1972-05-25
US3749828A (en) 1973-07-31
DE2057478B2 (en) 1973-04-05
BE775667A (en) 1972-03-16
GB1367798A (en) 1974-09-25
DE2057478A1 (en) 1972-06-08
DE2057478C3 (en) 1973-10-25
IT939167B (en) 1973-02-10
SE365745B (en) 1974-04-01
FR2115346B1 (en) 1976-02-13
FR2115346A1 (en) 1972-07-07
JPS5426881B1 (en) 1979-09-06

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Legal Events

Date Code Title Description
PL Patent ceased