NO139672C - PROCEDURE FOR IMPROVING CONTOURED RECORDINGS IN THERMOPLASTIC SHEETS OR PLATES, AND A DEVICE FOR CARRYING OUT THE PROCEDURE - Google Patents

PROCEDURE FOR IMPROVING CONTOURED RECORDINGS IN THERMOPLASTIC SHEETS OR PLATES, AND A DEVICE FOR CARRYING OUT THE PROCEDURE

Info

Publication number
NO139672C
NO139672C NO3169/73A NO316973A NO139672C NO 139672 C NO139672 C NO 139672C NO 3169/73 A NO3169/73 A NO 3169/73A NO 316973 A NO316973 A NO 316973A NO 139672 C NO139672 C NO 139672C
Authority
NO
Norway
Prior art keywords
procedure
recordings
contoured
improving
plates
Prior art date
Application number
NO3169/73A
Other languages
Norwegian (no)
Other versions
NO139672B (en
Inventor
Basil Harry Royston Spiller
Alan Phillipson
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
Publication of NO139672B publication Critical patent/NO139672B/en
Publication of NO139672C publication Critical patent/NO139672C/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
    • 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
    • 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
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/36—Moulds for making articles of definite length, i.e. discrete articles
    • 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
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/52—Heating or cooling
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
NO3169/73A 1972-10-17 1973-08-08 PROCEDURE FOR IMPROVING CONTOURED RECORDINGS IN THERMOPLASTIC SHEETS OR PLATES, AND A DEVICE FOR CARRYING OUT THE PROCEDURE NO139672C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB4770372 1972-10-17
GB4770373 1973-02-01

Publications (2)

Publication Number Publication Date
NO139672B NO139672B (en) 1979-01-15
NO139672C true NO139672C (en) 1979-04-25

Family

ID=26266112

Family Applications (1)

Application Number Title Priority Date Filing Date
NO3169/73A NO139672C (en) 1972-10-17 1973-08-08 PROCEDURE FOR IMPROVING CONTOURED RECORDINGS IN THERMOPLASTIC SHEETS OR PLATES, AND A DEVICE FOR CARRYING OUT THE PROCEDURE

Country Status (3)

Country Link
DK (1) DK137600B (en)
NO (1) NO139672C (en)
SE (1) SE398071B (en)

Also Published As

Publication number Publication date
DK137600B (en) 1978-04-03
DK137600C (en) 1978-09-18
SE398071B (en) 1977-12-05
NO139672B (en) 1979-01-15

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