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IT1024890B - HYDRAULIC PRESS FOR MAKING RECORDING DISCS - Google Patents

HYDRAULIC PRESS FOR MAKING RECORDING DISCS

Info

Publication number
IT1024890B
IT1024890B IT70413/74A IT7041374A IT1024890B IT 1024890 B IT1024890 B IT 1024890B IT 70413/74 A IT70413/74 A IT 70413/74A IT 7041374 A IT7041374 A IT 7041374A IT 1024890 B IT1024890 B IT 1024890B
Authority
IT
Italy
Prior art keywords
hydraulic press
recording discs
making recording
making
discs
Prior art date
Application number
IT70413/74A
Other languages
Italian (it)
Original Assignee
Decca 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 Decca Ltd filed Critical Decca Ltd
Application granted granted Critical
Publication of IT1024890B publication Critical patent/IT1024890B/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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/02—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means
    • B29C33/04—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means using liquids, gas or steam
    • 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
    • B29C43/10—Isostatic pressing, i.e. using non-rigid pressure-exerting members against rigid parts or dies
    • B29C43/12—Isostatic pressing, i.e. using non-rigid pressure-exerting members against rigid parts or dies using bags surrounding the moulding material or using membranes contacting the moulding material
    • 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
    • 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
    • B30B15/062—Press plates
    • B30B15/064—Press plates with heating or cooling means
    • 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
    • B29L2017/005—CD''s, DVD''s
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
    • Y10S425/81—Sound record

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Diaphragms And Bellows (AREA)
  • Reciprocating Pumps (AREA)
  • Laminated Bodies (AREA)
  • Presses And Accessory Devices Thereof (AREA)
  • Press Drives And Press Lines (AREA)
IT70413/74A 1973-11-22 1974-11-21 HYDRAULIC PRESS FOR MAKING RECORDING DISCS IT1024890B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB54212/73A GB1484257A (en) 1973-11-22 1973-11-22 Record-making press

Publications (1)

Publication Number Publication Date
IT1024890B true IT1024890B (en) 1978-07-20

Family

ID=10470296

Family Applications (1)

Application Number Title Priority Date Filing Date
IT70413/74A IT1024890B (en) 1973-11-22 1974-11-21 HYDRAULIC PRESS FOR MAKING RECORDING DISCS

Country Status (14)

Country Link
US (1) US3918875A (en)
JP (1) JPS5714967B2 (en)
AT (1) AT347146B (en)
BE (1) BE822469A (en)
CA (1) CA1028458A (en)
CH (1) CH581021A5 (en)
DE (1) DE2455224A1 (en)
DK (1) DK140521B (en)
FR (1) FR2252199B1 (en)
GB (1) GB1484257A (en)
IT (1) IT1024890B (en)
NL (1) NL164795C (en)
NO (1) NO142056C (en)
SE (1) SE410833B (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7415442A (en) * 1974-11-27 1976-05-31 Philips Nv PRESS EQUIPMENT FOR THE MANUFACTURE OF PLASTIC OBJECTS, IN PARTICULAR GRAMOPHONE AND IMAGE PLATES.
GB1509362A (en) * 1977-01-17 1978-05-04 Emi Electrola Gmbh Disc record press
US4245811A (en) * 1978-06-06 1981-01-20 Messerschmitt-Bolkow-Blohm Gesellschaft Mit Beschrankter Haftung Press mould half, more especially for producing records
US4231730A (en) * 1978-11-25 1980-11-04 E M I Limited Moulding video discs
NL7812387A (en) * 1978-12-21 1980-06-24 Philips Nv DEVICE FOR MANUFACTURING PLATES.
FR2468456A1 (en) * 1979-09-06 1981-05-08 Thomson Csf DEVICE FOR MOLDING INFORMATION CARRIER DISCS
US4364720A (en) * 1980-12-22 1982-12-21 Ryder International Corporation Molding machine and system for accomodating a plurality of such machines
US4397627A (en) * 1982-03-18 1983-08-09 Rca Corporation Apparatus for molding a recorded disc
DE3429801A1 (en) * 1984-08-13 1986-04-10 Maschinenfabrik J. Dieffenbacher Gmbh & Co, 7519 Eppingen PRESSURE COMPENSATION PAD
JPS62134349U (en) * 1986-02-19 1987-08-24
DE4234961C2 (en) * 1992-10-16 1996-07-25 Innova Zug Ag Process for producing a mold for the production of plastic molded parts
US5316464A (en) * 1992-12-16 1994-05-31 Lexell Jason R Compact disc labeling system
EP1362682A1 (en) * 2002-05-13 2003-11-19 ZBD Displays Ltd, Method and apparatus for liquid crystal alignment
US6939120B1 (en) * 2002-09-12 2005-09-06 Komag, Inc. Disk alignment apparatus and method for patterned media production
US7431582B2 (en) * 2005-06-17 2008-10-07 Rexam Closure Systems Inc. Molding machine
PL391284A1 (en) * 2010-05-22 2011-12-05 Linter Spółka Z Ograniczoną Odpowiedzialnością Hotplate of a vulcanizing press and a set of hotplates and vulcanization method using hotplates

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2998622A (en) * 1957-12-23 1961-09-05 Applic Ind Plastiques Soc D Apparatus for pressing gramophone records
BE795718A (en) * 1972-02-23 1973-06-18 Decca Ltd PROCESS AND APPARATUS FOR THE MANUFACTURE OF PROFILE RECORDINGS
GB1437175A (en) * 1972-06-28 1976-05-26 Emi Elecrrola Gmbh Record presses
US3819315A (en) * 1973-01-09 1974-06-25 Ted Bildplatten Apparatus for stamping information carriers from a plastic foil

Also Published As

Publication number Publication date
ATA936174A (en) 1978-04-15
US3918875A (en) 1975-11-11
JPS50106602A (en) 1975-08-22
NO142056B (en) 1980-03-10
BE822469A (en) 1975-03-14
CH581021A5 (en) 1976-10-29
NL164795B (en) 1980-09-15
NL164795C (en) 1981-02-16
DK140521C (en) 1980-02-18
DE2455224A1 (en) 1975-05-28
FR2252199B1 (en) 1977-03-25
JPS5714967B2 (en) 1982-03-27
DK140521B (en) 1979-09-24
SE7414637L (en) 1975-05-23
NO142056C (en) 1980-06-18
DK607574A (en) 1975-07-14
CA1028458A (en) 1978-03-28
AT347146B (en) 1978-12-11
FR2252199A1 (en) 1975-06-20
AU7531774A (en) 1976-05-13
GB1484257A (en) 1977-09-01
SE410833B (en) 1979-11-12
NO744136L (en) 1975-06-16
NL7415192A (en) 1975-05-26

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