BE775667A - Procede pour le centrage de matrices de pressage de disques phonographiques ou video - Google Patents

Procede pour le centrage de matrices de pressage de disques phonographiques ou video

Info

Publication number
BE775667A
BE775667A BE775667A BE775667A BE775667A BE 775667 A BE775667 A BE 775667A BE 775667 A BE775667 A BE 775667A BE 775667 A BE775667 A BE 775667A BE 775667 A BE775667 A BE 775667A
Authority
BE
Belgium
Prior art keywords
phonographic
video discs
pressing dies
centering pressing
centering
Prior art date
Application number
BE775667A
Other languages
English (en)
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 BE775667A publication Critical patent/BE775667A/fr

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)
  • Holding Or Fastening Of Disk On Rotational Shaft (AREA)
  • Chemically Coating (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
BE775667A 1970-11-23 1971-11-22 Procede pour le centrage de matrices de pressage de disques phonographiques ou video BE775667A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2057478A DE2057478C3 (de) 1970-11-23 1970-11-23 Verfahren zur Herstellung von zentrierten Pressmatrizen fur Schall platten und Videoplatten

Publications (1)

Publication Number Publication Date
BE775667A true BE775667A (fr) 1972-03-16

Family

ID=5788855

Family Applications (1)

Application Number Title Priority Date Filing Date
BE775667A BE775667A (fr) 1970-11-23 1971-11-22 Procede pour le centrage de matrices de pressage de disques phonographiques ou video

Country Status (11)

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

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2807856A1 (de) * 1978-02-23 1979-09-06 Mfe Corp Positioniervorrichtung
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
IT939167B (it) 1973-02-10
JPS5426881B1 (fr) 1979-09-06
US3749828A (en) 1973-07-31
FR2115346A1 (fr) 1972-07-07
AT320306B (de) 1975-02-10
CH544986A (de) 1973-11-30
FR2115346B1 (fr) 1976-02-13
DE2057478B2 (de) 1973-04-05
DE2057478A1 (de) 1972-06-08
SE365745B (fr) 1974-04-01
DE2057478C3 (de) 1973-10-25
NL7115842A (fr) 1972-05-25
GB1367798A (en) 1974-09-25

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