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GB1168634A - Method of Producing Gramophone-Record Moulds with Heating and Cooling Ducts. - Google Patents

Method of Producing Gramophone-Record Moulds with Heating and Cooling Ducts.

Info

Publication number
GB1168634A
GB1168634A GB4729866A GB4729866A GB1168634A GB 1168634 A GB1168634 A GB 1168634A GB 4729866 A GB4729866 A GB 4729866A GB 4729866 A GB4729866 A GB 4729866A GB 1168634 A GB1168634 A GB 1168634A
Authority
GB
United Kingdom
Prior art keywords
electro
moulds
heating
record
produced
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
GB4729866A
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 GB1168634A publication Critical patent/GB1168634A/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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D1/00—Electroforming
    • C25D1/10—Moulds; Masks; Masterforms
    • 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)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

1,168,634. Producing gramophone record moulds by electro-forming. TELDEC TELEFUNKEN DECCA SCHALLPLATTEN G.m.b.H. Oct.21, 1966 [Oct.22, 1965], No. 47298/66. Heading C7B. In the production of gramophone-record moulds with heating and cooling ducts, at least part of the mould is produced by electro-forming; e.g. the heating and cooling ducts and/or the profiled seating in the mould for the matrix may be produced by electro-forming. For instance, the part 24 as shown may be produced by electro-forming using a master die having raised webs corresponding to the ducts 22 to be produced. After removal of the electro-deposited part 24 from the die, the ducts 22 may be filled with a conductive material which can be subsequently removed, e.g. a metal of low melting point or conductive wax or resin, and a cover part 25 be electro-deposited thereon.
GB4729866A 1965-10-22 1966-10-21 Method of Producing Gramophone-Record Moulds with Heating and Cooling Ducts. Expired GB1168634A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DET0029637 1965-10-22

Publications (1)

Publication Number Publication Date
GB1168634A true GB1168634A (en) 1969-10-29

Family

ID=7555030

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4729866A Expired GB1168634A (en) 1965-10-22 1966-10-21 Method of Producing Gramophone-Record Moulds with Heating and Cooling Ducts.

Country Status (3)

Country Link
BE (1) BE688718A (en)
GB (1) GB1168634A (en)
NL (1) NL6614697A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2237291A (en) * 1989-09-22 1991-05-01 British Gas Plc Method of bridging gaps in a substrate by electrodeposited film, for use in gas sensor manufacture

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2237291A (en) * 1989-09-22 1991-05-01 British Gas Plc Method of bridging gaps in a substrate by electrodeposited film, for use in gas sensor manufacture

Also Published As

Publication number Publication date
BE688718A (en) 1967-03-31
NL6614697A (en) 1967-04-24

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees