GB901814A - A die for the manufacture of flexible gramophone records - Google Patents

A die for the manufacture of flexible gramophone records

Info

Publication number
GB901814A
GB901814A GB1968059A GB1968059A GB901814A GB 901814 A GB901814 A GB 901814A GB 1968059 A GB1968059 A GB 1968059A GB 1968059 A GB1968059 A GB 1968059A GB 901814 A GB901814 A GB 901814A
Authority
GB
United Kingdom
Prior art keywords
flexible
die
manufacture
gramophone records
june
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
GB1968059A
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.)
TELDEC Telefunken Decca Schallplatten GmbH
Original Assignee
TELDEC Telefunken Decca Schallplatten 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 TELDEC Telefunken Decca Schallplatten GmbH filed Critical TELDEC Telefunken Decca Schallplatten GmbH
Publication of GB901814A publication Critical patent/GB901814A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B5/00—Presses characterised by the use of pressing means other than those mentioned in the preceding groups
    • B30B5/02—Presses characterised by the use of pressing means other than those mentioned in the preceding groups wherein the pressing means is in the form of a flexible element, e.g. diaphragm, urged by fluid pressure
    • 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
    • B29C43/021—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles characterised by the shape of the surface
    • 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
    • B29D17/002—Producing phonograph records
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
    • B29K2027/06—PVC, i.e. polyvinylchloride
    • 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

901,814. Making gramophone records. TELDEC TELEFUNKEN - DECCA SCHALLPLATTEN G.m.b.H. June 9, 1959 [June 13, 1958], No. 19680/59. Class 40 (2). To prevent troubles due to trapped air, a blank 6 for a flexible single-sided record which may form part of a picture record is pressed against a heated stamper 2a by a diaphragm 4 inflated by hydraulic fluid 12. The diaphragm first rises in the centre and then exerts pressure increasingly radially, displaced air escaping through a vent 18.
GB1968059A 1958-06-13 1959-06-09 A die for the manufacture of flexible gramophone records Expired GB901814A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DET15258A DE1094996B (en) 1958-06-13 1958-06-13 Device for the production of vinyl records

Publications (1)

Publication Number Publication Date
GB901814A true GB901814A (en) 1962-07-25

Family

ID=7547857

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1968059A Expired GB901814A (en) 1958-06-13 1959-06-09 A die for the manufacture of flexible gramophone records

Country Status (6)

Country Link
BE (1) BE579436A (en)
CH (1) CH372170A (en)
DE (1) DE1094996B (en)
FR (1) FR1226391A (en)
GB (1) GB901814A (en)
NL (1) NL239956A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3397425A (en) * 1963-09-16 1968-08-20 Decca Ltd Embossing press for gramophone records
US3474494A (en) * 1964-08-01 1969-10-28 Lindstroem Gmbh Carl Gramophone record presses
EP0064867A2 (en) * 1981-05-09 1982-11-17 British Gas Corporation Apparatus and method for the heat treatment of materials
EP1426168A2 (en) * 2001-07-02 2004-06-09 Essilor International Compagnie Generale D'optique Inflatable membrane apparatus and process for transferring a coating onto a surface of a lens blank

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL177721B (en) * 1977-03-14 1985-06-03 Philips Nv METHOD FOR MANUFACTURING A PLASTIC INFORMATION CARRIER WITH LAYERED STRUCTURE AND AN APPARATUS FOR CARRYING OUT THE METHOD
FR2468456A1 (en) * 1979-09-06 1981-05-08 Thomson Csf DEVICE FOR MOLDING INFORMATION CARRIER DISCS
DE3719200A1 (en) * 1987-06-09 1988-12-29 Ibm Deutschland OPTICAL DISK AND METHOD FOR THEIR PRODUCTION
JPH03225641A (en) * 1990-01-31 1991-10-04 Sony Corp Transfer method for disk substrate

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE317925C (en) *
GB396036A (en) * 1930-10-24 1933-07-27 Roux Bernard Improvements in a process and apparatus for stamping or impressing thin sheets or plates
GB497370A (en) * 1937-06-18 1938-12-19 Shozo Konishi Improvements in a process for manufacturing an endless-film record for sound reproduction

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3397425A (en) * 1963-09-16 1968-08-20 Decca Ltd Embossing press for gramophone records
US3474494A (en) * 1964-08-01 1969-10-28 Lindstroem Gmbh Carl Gramophone record presses
EP0064867A2 (en) * 1981-05-09 1982-11-17 British Gas Corporation Apparatus and method for the heat treatment of materials
EP0064867A3 (en) * 1981-05-09 1984-10-17 British Gas Corporation Apparatus and method for the heat treatment of materials
EP1426168A2 (en) * 2001-07-02 2004-06-09 Essilor International Compagnie Generale D'optique Inflatable membrane apparatus and process for transferring a coating onto a surface of a lens blank
EP1426168A3 (en) * 2001-07-02 2005-02-02 Essilor International Compagnie Generale D'optique Inflatable membrane apparatus and process for transferring a coating onto a surface of a lens blank
AU2008203016B2 (en) * 2001-07-02 2010-11-18 Essilor International Inflatable membrane apparatus and process for transferring a coating onto a surface of a lens blank

Also Published As

Publication number Publication date
CH372170A (en) 1963-09-30
FR1226391A (en) 1960-07-11
DE1094996B (en) 1960-12-15
BE579436A (en) 1959-10-01
NL239956A (en)

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