GB842754A - Improvements in or relating to the production of reinforced pipes or ducts and a mandrel for use in the production thereof - Google Patents

Improvements in or relating to the production of reinforced pipes or ducts and a mandrel for use in the production thereof

Info

Publication number
GB842754A
GB842754A GB3345957A GB3345957A GB842754A GB 842754 A GB842754 A GB 842754A GB 3345957 A GB3345957 A GB 3345957A GB 3345957 A GB3345957 A GB 3345957A GB 842754 A GB842754 A GB 842754A
Authority
GB
United Kingdom
Prior art keywords
mandrel
production
inflatable
tube
ducts
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
GB3345957A
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 GB3345957A priority Critical patent/GB842754A/en
Priority to DEJ15556A priority patent/DE1148737B/en
Publication of GB842754A publication Critical patent/GB842754A/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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/80—Component parts, details or accessories; Auxiliary operations
    • B29C53/82—Cores or mandrels
    • B29C53/821—Mandrels especially adapted for winding and joining
    • B29C53/824—Mandrels especially adapted for winding and joining collapsible, e.g. elastic or inflatable; with removable parts, e.g. for regular shaped, straight tubular 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/44—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
    • B29C33/48—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles with means for collapsing or disassembling
    • B29C33/50—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles with means for collapsing or disassembling elastic or flexible
    • B29C33/505—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles with means for collapsing or disassembling elastic or flexible cores or mandrels, e.g. inflatable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/772—Articles characterised by their shape and not otherwise provided for

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulding By Coating Moulds (AREA)

Abstract

842,754. Mandrels. JARAY, F. F. Oct. 24, 1958 [Oct. 26, 1957], No. 33459/57. Addition to 838,219. Class 83 (3). [Also in Group XXVIII] A mandrel for the production of pipes or ducts of non-circular cross-section consists of an inflatable tube 2, Fig. 1, having disposed thereon longitudinal strips 1 of metal, wood, reinforced plastic or rubber on which a fibrous reinforcement is wound. The strips may be replaced by girders of right-angle section or by hollow inflatable elastic elements or the mandrel may be formed with corrugations by the superimposition of inflatable toroidal tubes on the tube 2. In Fig. 4, the tube 2 is disposed between inner concave surfaces 6 of rectangular elements 5. In Fig. 5 a hollow cylindrical metal mandrel 7 is formed with longitudinal slits 8, longitudinal channels being formed adjacent the edges of the slits to accommodate inflatable tubes 10.
GB3345957A 1957-10-26 1957-10-26 Improvements in or relating to the production of reinforced pipes or ducts and a mandrel for use in the production thereof Expired GB842754A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB3345957A GB842754A (en) 1957-10-26 1957-10-26 Improvements in or relating to the production of reinforced pipes or ducts and a mandrel for use in the production thereof
DEJ15556A DE1148737B (en) 1957-10-26 1958-10-25 Device for manufacturing tubular components from a reinforcement material provided with a hardenable resin material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3345957A GB842754A (en) 1957-10-26 1957-10-26 Improvements in or relating to the production of reinforced pipes or ducts and a mandrel for use in the production thereof

Publications (1)

Publication Number Publication Date
GB842754A true GB842754A (en) 1960-07-27

Family

ID=10353241

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3345957A Expired GB842754A (en) 1957-10-26 1957-10-26 Improvements in or relating to the production of reinforced pipes or ducts and a mandrel for use in the production thereof

Country Status (2)

Country Link
DE (1) DE1148737B (en)
GB (1) GB842754A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014099841A1 (en) * 2012-12-17 2014-06-26 General Electric Company Expandable mandrel and method of making hollow composite structures

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO790234L (en) * 1979-01-24 1980-07-25 Torleif Omre PROCEDURE FOR MANUFACTURING BEETS FOR LIGHTMASTERS AND SIMILAR

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2202042A (en) * 1938-01-13 1940-05-28 Clinton W Blount Method of manufacturing hollow objects
US2723426A (en) * 1953-02-12 1955-11-15 Beech Aircraft Corp Manufacture of reinforced plastic tubing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014099841A1 (en) * 2012-12-17 2014-06-26 General Electric Company Expandable mandrel and method of making hollow composite structures

Also Published As

Publication number Publication date
DE1148737B (en) 1963-05-16

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