GB579752A - Improvements in or relating to the moulding of reinforced plastics - Google Patents

Improvements in or relating to the moulding of reinforced plastics

Info

Publication number
GB579752A
GB579752A GB192244A GB192244A GB579752A GB 579752 A GB579752 A GB 579752A GB 192244 A GB192244 A GB 192244A GB 192244 A GB192244 A GB 192244A GB 579752 A GB579752 A GB 579752A
Authority
GB
United Kingdom
Prior art keywords
wire
moulding
mould
piston
article
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
GB192244A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB192244A priority Critical patent/GB579752A/en
Publication of GB579752A publication Critical patent/GB579752A/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
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14065—Positioning or centering articles in the mould
    • B29C45/14073—Positioning or centering articles in the mould using means being retractable during injection
    • 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
    • B29D12/00—Producing frames
    • B29D12/02—Spectacle frames

Landscapes

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

Abstract

579,752. Making spectacle frames &c. by injection-moulding. POLLITT, S. D. Feb. 2, 1944, No. 1922. [Class 87 (ii)] A reinforcing wire 16 is held in its correct position in a hinged, two-part mould 12, 13, during the injection-moulding of an article such as a side-piece for a spectacle frame, by a perforated piston 19 which snugly embraces the wire. The wire is fixed at the inlet end of the mould by a spring bolt 18 and is free at its other end. As thermoplastic material is forced down the nozzle 17 and into the mould cavity, the piston 19 is forced along the mould keeping the wire taut and in the correct position, until the piston is forced clear of the free end of the wire, which end is embedded in the finished article. The ends of the article may be trimmed as required after moulding. Reference has been directed by the Comptroller to Specification 388,662.
GB192244A 1944-02-02 1944-02-02 Improvements in or relating to the moulding of reinforced plastics Expired GB579752A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB192244A GB579752A (en) 1944-02-02 1944-02-02 Improvements in or relating to the moulding of reinforced plastics

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB192244A GB579752A (en) 1944-02-02 1944-02-02 Improvements in or relating to the moulding of reinforced plastics

Publications (1)

Publication Number Publication Date
GB579752A true GB579752A (en) 1946-08-14

Family

ID=9730367

Family Applications (1)

Application Number Title Priority Date Filing Date
GB192244A Expired GB579752A (en) 1944-02-02 1944-02-02 Improvements in or relating to the moulding of reinforced plastics

Country Status (1)

Country Link
GB (1) GB579752A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3429008A (en) * 1964-03-03 1969-02-25 English Numbering Machines Mold for tube used in a loom for weaving carpets,especially axminster carpets
US3543349A (en) * 1967-03-10 1970-12-01 Drymit Sa Mould for use in an injection moulding process
US3778211A (en) * 1971-12-27 1973-12-11 Redmer Plastics Inc Plastic injection mold apparatus
FR2490833A1 (en) * 1980-09-22 1982-03-26 Western Electric Co METHOD FOR MOLDING A CONNECTOR FOR OPTICAL FIBER
GB2248580A (en) * 1990-10-10 1992-04-15 Samsung Electronics Co Ltd Encapsulating semiconductor devices attached to load frames
EP1609993A2 (en) * 2004-06-24 2005-12-28 Baker Hughes Incorporated Method of molding progressive cavity pump stators
WO2015140103A1 (en) * 2014-03-18 2015-09-24 Essilor International (Compagnie Générale d'Optique) A process for manufacturing an ophthalmic lens equipped with an insert
US10288907B2 (en) 2014-03-18 2019-05-14 Essilor International Mould and process for manufacturing an ophthalmic lens equipped with an insert

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3429008A (en) * 1964-03-03 1969-02-25 English Numbering Machines Mold for tube used in a loom for weaving carpets,especially axminster carpets
US3543349A (en) * 1967-03-10 1970-12-01 Drymit Sa Mould for use in an injection moulding process
US3778211A (en) * 1971-12-27 1973-12-11 Redmer Plastics Inc Plastic injection mold apparatus
FR2490833A1 (en) * 1980-09-22 1982-03-26 Western Electric Co METHOD FOR MOLDING A CONNECTOR FOR OPTICAL FIBER
GB2248580A (en) * 1990-10-10 1992-04-15 Samsung Electronics Co Ltd Encapsulating semiconductor devices attached to load frames
EP1609993A2 (en) * 2004-06-24 2005-12-28 Baker Hughes Incorporated Method of molding progressive cavity pump stators
EP1609993A3 (en) * 2004-06-24 2006-08-09 Baker Hughes Incorporated Method of molding progressive cavity pump stators
WO2015140103A1 (en) * 2014-03-18 2015-09-24 Essilor International (Compagnie Générale d'Optique) A process for manufacturing an ophthalmic lens equipped with an insert
CN105980910A (en) * 2014-03-18 2016-09-28 埃西勒国际通用光学公司 A process for manufacturing an ophthalmic lens equipped with an insert
US10254568B2 (en) 2014-03-18 2019-04-09 Essilor International Process for manufacturing an ophthalmic lens equipped with an insert
US10288907B2 (en) 2014-03-18 2019-05-14 Essilor International Mould and process for manufacturing an ophthalmic lens equipped with an insert
CN105980910B (en) * 2014-03-18 2019-11-05 依视路国际公司 Method for manufacturing the ophthalmic lens equipped with insertion piece

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