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GB2036635B - Moulding video discs - Google Patents

Moulding video discs

Info

Publication number
GB2036635B
GB2036635B GB7938025A GB7938025A GB2036635B GB 2036635 B GB2036635 B GB 2036635B GB 7938025 A GB7938025 A GB 7938025A GB 7938025 A GB7938025 A GB 7938025A GB 2036635 B GB2036635 B GB 2036635B
Authority
GB
United Kingdom
Prior art keywords
moulding
video discs
discs
video
moulding video
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
GB7938025A
Other versions
GB2036635A (en
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.)
EMI Ltd
Original Assignee
EMI Ltd
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 EMI Ltd filed Critical EMI Ltd
Priority to GB7938025A priority Critical patent/GB2036635B/en
Publication of GB2036635A publication Critical patent/GB2036635A/en
Application granted granted Critical
Publication of GB2036635B publication Critical patent/GB2036635B/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/06—Platens or press rams
    • B30B15/061—Cushion plates
    • 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
    • B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/02—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D17/00—Producing carriers of records containing fine grooves or impressions, e.g. disc records for needle playback, cylinder records; Producing record discs from master stencils
    • B29D17/005—Producing optically read record carriers, e.g. optical discs

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
GB7938025A 1978-11-25 1979-11-02 Moulding video discs Expired GB2036635B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7938025A GB2036635B (en) 1978-11-25 1979-11-02 Moulding video discs

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB7846071 1978-11-25
GB7938025A GB2036635B (en) 1978-11-25 1979-11-02 Moulding video discs

Publications (2)

Publication Number Publication Date
GB2036635A GB2036635A (en) 1980-07-02
GB2036635B true GB2036635B (en) 1982-12-22

Family

ID=26269739

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7938025A Expired GB2036635B (en) 1978-11-25 1979-11-02 Moulding video discs

Country Status (1)

Country Link
GB (1) GB2036635B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0614162Y2 (en) * 1987-06-19 1994-04-13 三菱レイヨン株式会社 Optical fiber roughing machine
EP0320667A3 (en) * 1987-12-08 1990-07-04 Günther Louda Embossing machine for making weakening marks on a material shaped like a sheet or card
PE29099A1 (en) * 1997-01-30 1999-04-01 Redco Sa PROCEDURE FOR THE MANUFACTURE OF CORRUGATED FIBROCEMENT PLATES
DE10352754B3 (en) * 2003-11-12 2005-06-30 Bachmann Kunststoff Technologien Gmbh Hot-pressing device with a press plate and at least one elastic coating

Also Published As

Publication number Publication date
GB2036635A (en) 1980-07-02

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Legal Events

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