GB1478584A - Pressing or stamping of data carriers in the form of foils or plates - Google Patents

Pressing or stamping of data carriers in the form of foils or plates

Info

Publication number
GB1478584A
GB1478584A GB839475A GB839475A GB1478584A GB 1478584 A GB1478584 A GB 1478584A GB 839475 A GB839475 A GB 839475A GB 839475 A GB839475 A GB 839475A GB 1478584 A GB1478584 A GB 1478584A
Authority
GB
United Kingdom
Prior art keywords
data carriers
foils
stamping
pressing
plates
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
GB839475A
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.)
Polygram GmbH
Original Assignee
Polygram 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 Polygram GmbH filed Critical Polygram GmbH
Publication of GB1478584A publication Critical patent/GB1478584A/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

Abstract

1478584 Presses POLYGRAM GmbH 28 Feb 1975 [4 March 1974] 8394/75 Heading B5A A press 1 for producing data carriers in thermoplastic foil or plate form has a matrix 2 mounted in a recess which contains a liquid or gas 3 to relieve the frictional wear between the surface of the press and the matrix which would occur if they were directly connected.
GB839475A 1974-03-04 1975-02-28 Pressing or stamping of data carriers in the form of foils or plates Expired GB1478584A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742410178 DE2410178C3 (en) 1974-03-04 1974-03-04 Device for pressing or embossing film or plate-shaped recording media

Publications (1)

Publication Number Publication Date
GB1478584A true GB1478584A (en) 1977-07-06

Family

ID=5908996

Family Applications (1)

Application Number Title Priority Date Filing Date
GB839475A Expired GB1478584A (en) 1974-03-04 1975-02-28 Pressing or stamping of data carriers in the form of foils or plates

Country Status (6)

Country Link
JP (1) JPS50124956A (en)
DE (1) DE2410178C3 (en)
FR (1) FR2263093B1 (en)
GB (1) GB1478584A (en)
IT (1) IT1033290B (en)
NL (1) NL165682C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0032005A1 (en) * 1979-12-21 1981-07-15 EMI Limited Improvements in or relating to disc record preparation

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2430057A1 (en) * 1978-06-29 1980-01-25 Thomson Csf DEVICE FOR PRESSING FLEXIBLE DISCS AND PRESSING METHOD USING SUCH A DEVICE

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS419736Y1 (en) * 1965-05-13 1966-05-11

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0032005A1 (en) * 1979-12-21 1981-07-15 EMI Limited Improvements in or relating to disc record preparation

Also Published As

Publication number Publication date
NL165682B (en) 1980-12-15
IT1033290B (en) 1979-07-10
DE2410178C3 (en) 1978-06-22
FR2263093A1 (en) 1975-10-03
NL7502417A (en) 1975-09-08
DE2410178A1 (en) 1975-10-02
DE2410178B2 (en) 1977-11-03
JPS50124956A (en) 1975-10-01
FR2263093B1 (en) 1978-02-03
NL165682C (en) 1981-05-15

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee