GB721609A - Improvements in moulding hollow articles particularly from synthetic thermoplastic resins - Google Patents

Improvements in moulding hollow articles particularly from synthetic thermoplastic resins

Info

Publication number
GB721609A
GB721609A GB873352A GB873352A GB721609A GB 721609 A GB721609 A GB 721609A GB 873352 A GB873352 A GB 873352A GB 873352 A GB873352 A GB 873352A GB 721609 A GB721609 A GB 721609A
Authority
GB
United Kingdom
Prior art keywords
article
moulding
core
mould
hollow articles
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
GB873352A
Inventor
Henry Nelson Ewer
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.)
G & E Equipment And Contracts
Original Assignee
G & E Equipment And Contracts
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 G & E Equipment And Contracts filed Critical G & E Equipment And Contracts
Priority to GB873352A priority Critical patent/GB721609A/en
Publication of GB721609A publication Critical patent/GB721609A/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
    • 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
    • B29C45/36—Moulds having means for locating or centering cores
    • 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
    • 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
    • B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
    • B29C45/006—Joining parts moulded in separate cavities

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

721,609. Moulding hollow articles from synthetic resin &c. EQUIPMENT & CONTRACTS, Ltd., G. & E. April 2, 1953 [April 4, 1952], No. 8733/52. Class 87 (2). In the manufacture of a hollow article by injection, the core 7 is supported within the mould parts 1, 2 by means 8 which permit the passage of moulding material through the means. As shown, the means 8 are flanges on the core, the flanges being supported in recesses 4 in the mould parts and having passages 9 through which material injected at 11 may pass. After moulding, the article with the core inside is removed from the mould, the article is separated into components determined by the mould parts, the core is removed, and the components are joined to form the complete article. The mould may be in three or more parts. The article may be a ball float or a toy. The material may be polythene.
GB873352A 1952-04-04 1952-04-04 Improvements in moulding hollow articles particularly from synthetic thermoplastic resins Expired GB721609A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB873352A GB721609A (en) 1952-04-04 1952-04-04 Improvements in moulding hollow articles particularly from synthetic thermoplastic resins

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB873352A GB721609A (en) 1952-04-04 1952-04-04 Improvements in moulding hollow articles particularly from synthetic thermoplastic resins

Publications (1)

Publication Number Publication Date
GB721609A true GB721609A (en) 1955-01-12

Family

ID=9858214

Family Applications (1)

Application Number Title Priority Date Filing Date
GB873352A Expired GB721609A (en) 1952-04-04 1952-04-04 Improvements in moulding hollow articles particularly from synthetic thermoplastic resins

Country Status (1)

Country Link
GB (1) GB721609A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2439657A1 (en) * 1978-10-25 1980-05-23 Gefitec Sa Thin walled injection moulded cassette container - has opposite core ends clamped between half moulds to ensure uniform wall thickness

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2439657A1 (en) * 1978-10-25 1980-05-23 Gefitec Sa Thin walled injection moulded cassette container - has opposite core ends clamped between half moulds to ensure uniform wall thickness

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