JPS4836179B1 - - Google Patents

Info

Publication number
JPS4836179B1
JPS4836179B1 JP2558070A JP2558070A JPS4836179B1 JP S4836179 B1 JPS4836179 B1 JP S4836179B1 JP 2558070 A JP2558070 A JP 2558070A JP 2558070 A JP2558070 A JP 2558070A JP S4836179 B1 JPS4836179 B1 JP S4836179B1
Authority
JP
Japan
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.)
Pending
Application number
JP2558070A
Other languages
Japanese (ja)
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
Priority claimed from GB62991/69A external-priority patent/GB1301095A/en
Application filed filed Critical
Publication of JPS4836179B1 publication Critical patent/JPS4836179B1/ja
Pending 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B29C45/263—Moulds with mould wall parts provided with fine grooves or impressions, e.g. for record discs
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B29C45/27—Sprue channels ; Runner channels or runner nozzles
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/40—Removing or ejecting moulded articles
    • B29C45/43—Removing or ejecting moulded articles using fluid under pressure
    • 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)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
JP2558070A 1969-03-26 1970-03-26 Pending JPS4836179B1 (enrdf_load_stackoverflow)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1570069 1969-03-26
GB62991/69A GB1301095A (en) 1969-03-26 1969-03-26 Improvements in or relating to the production of gramophone records

Publications (1)

Publication Number Publication Date
JPS4836179B1 true JPS4836179B1 (enrdf_load_stackoverflow) 1973-11-01

Family

ID=26251481

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2558070A Pending JPS4836179B1 (enrdf_load_stackoverflow) 1969-03-26 1970-03-26

Country Status (4)

Country Link
JP (1) JPS4836179B1 (enrdf_load_stackoverflow)
DE (1) DE2014311A1 (enrdf_load_stackoverflow)
FR (1) FR2039980A5 (enrdf_load_stackoverflow)
NL (1) NL7003886A (enrdf_load_stackoverflow)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4472124A (en) * 1980-09-05 1984-09-18 Matsushita Electric Industrial Co., Limited Device for producing an information recording disk
US4466934A (en) * 1980-10-31 1984-08-21 Discovision Associates Hot sprue valve assembly for an injection molding machine
US4340353A (en) * 1980-10-31 1982-07-20 Discovision Associates Hot sprue valve assembly for an injection molding machine
US4405540A (en) 1980-10-31 1983-09-20 Discovision Associates Hot sprue valve assembly for an injection molding machine
US4372741A (en) * 1980-10-31 1983-02-08 Discovision Associates Hot sprue valve assembly for an injection molding machine
US4772196A (en) * 1986-02-26 1988-09-20 Kabushiki Kaisha Meiki Seisakusho Molding apparatus for producing centrally-apertured discs

Also Published As

Publication number Publication date
NL7003886A (enrdf_load_stackoverflow) 1970-09-29
DE2014311A1 (enrdf_load_stackoverflow) 1970-10-15
FR2039980A5 (en) 1971-01-15

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