GB921167A - A method of and means for the production of hollow bent articles of plastic material - Google Patents

A method of and means for the production of hollow bent articles of plastic material

Info

Publication number
GB921167A
GB921167A GB2667560A GB2667560A GB921167A GB 921167 A GB921167 A GB 921167A GB 2667560 A GB2667560 A GB 2667560A GB 2667560 A GB2667560 A GB 2667560A GB 921167 A GB921167 A GB 921167A
Authority
GB
United Kingdom
Prior art keywords
production
plastic material
core
hollow bent
bent 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
GB2667560A
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.)
BORGE JOHANNES RAVN CHRISTENSE
Original Assignee
BORGE JOHANNES RAVN CHRISTENSE
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 BORGE JOHANNES RAVN CHRISTENSE filed Critical BORGE JOHANNES RAVN CHRISTENSE
Publication of GB921167A publication Critical patent/GB921167A/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
    • B29C45/261—Moulds having tubular mould cavities
    • B29C45/2614—Moulds having tubular mould cavities for manufacturing bent tubular articles using an undercut forming mould core

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)

Abstract

921,167. Moulding cores. B. J. R. CHRISTENSEN, and I. REFSHOLM. Aug. 2, 1960 [Dec. 17, 1959], No. 26675/60. Class 87(2). A core for making, e.g. a pipe bend, comprises parts 7, 8 one of which has a pivotally-mounted segmental part 13 which fills in the gap between the two tapered end faces 9, 10 when the core is in a moulding position. The part 13 is urged into this position by a spring 21 and is moved out of position by a lever 18. The core parts 7, 8 may be prevented from rotating in the mould by corresponding keys and grooves.
GB2667560A 1959-12-17 1960-08-02 A method of and means for the production of hollow bent articles of plastic material Expired GB921167A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DK458159A DK102702C (en) 1959-12-17 1959-12-17 Method for making hollow, bent plastic and retractable core blanks for use in carrying out the method.

Publications (1)

Publication Number Publication Date
GB921167A true GB921167A (en) 1963-03-13

Family

ID=8134845

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2667560A Expired GB921167A (en) 1959-12-17 1960-08-02 A method of and means for the production of hollow bent articles of plastic material

Country Status (3)

Country Link
CH (1) CH388608A (en)
DK (1) DK102702C (en)
GB (1) GB921167A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5160691A (en) * 1990-08-07 1992-11-03 Siemens Automotive L.P. Intake manifold/fuel rail method
GB2268436A (en) * 1992-06-12 1994-01-12 Wavin Bv Method and core for manufacturing electrofusion elbow socket connectors

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5160691A (en) * 1990-08-07 1992-11-03 Siemens Automotive L.P. Intake manifold/fuel rail method
GB2268436A (en) * 1992-06-12 1994-01-12 Wavin Bv Method and core for manufacturing electrofusion elbow socket connectors
GB2268436B (en) * 1992-06-12 1995-11-29 Wavin Bv Method and core for manufacturing electrofusion elbow socket connectors

Also Published As

Publication number Publication date
CH388608A (en) 1965-02-28
DK102702C (en) 1965-09-27

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