GB721609A - Improvements in moulding hollow articles particularly from synthetic thermoplastic resins - Google Patents
Improvements in moulding hollow articles particularly from synthetic thermoplastic resinsInfo
- 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
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.
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)
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 |
-
1952
- 1952-04-04 GB GB873352A patent/GB721609A/en not_active Expired
Cited By (1)
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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