GB766308A - Improvements in manufacture of coated seamless tubes - Google Patents

Improvements in manufacture of coated seamless tubes

Info

Publication number
GB766308A
GB766308A GB9112/55A GB911255A GB766308A GB 766308 A GB766308 A GB 766308A GB 9112/55 A GB9112/55 A GB 9112/55A GB 911255 A GB911255 A GB 911255A GB 766308 A GB766308 A GB 766308A
Authority
GB
United Kingdom
Prior art keywords
tube
coating
mandrel
rubber
coated
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
GB9112/55A
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.)
Uniroyal Inc
Original Assignee
United States Rubber Co
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 United States Rubber Co filed Critical United States Rubber Co
Publication of GB766308A publication Critical patent/GB766308A/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
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D23/00—Producing tubular articles
    • B29D23/001—Pipes; Pipe joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2021/00—Use of unspecified rubbers as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts

Landscapes

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

Abstract

766,308. Flexible tubes. UNITED STATES RUBBER CO. March 29, 1955 [July 9, 1954], No. 9112/55. Class 99(2) A method of manufacturing flexible seamless tubes having cured elastomeric coatings comprises mounting a braided fabric tube over a mandrel, applying a coating of liquid elastomer to the outer surface of the tube, setting the coating, removing the tube from the mandrel applying a second coating of liquid elastomer to the opposite surface of the tube and setting the second coating. The coatings may be of natural or synthetic rubber. The tubes are particularly useful as hot air ducts in aeroplanes. In Fig. 2 a seamless braided glass tube 10 is pushed on to a mandrel 16 and then covered and impregnated with a coating of rubber 11 The coating may be either an aqueous dispersion of natural or synthetic rubber latex or a dispersion of silicone rubber in any suitable organic liquid such as toluene gasoline or xylene. The strands 13 of the tube make an angle 14 of 40 degrees to 55 degrees with the axis of the tube so that diameter of the tube can be readily expanded and contracted. The coating may be effected by spraying, brushing or dipping. The coating is set by drying until it becomes non-tacky with or without curing. The tube is then pushed off the mandrel turned inside out remounted on the mandrel and its other side coated in a similar manner. In Fig. 3 a straight seamless tube 17 identical to the tube 10 is pushed over the curved mandrel 18 and coated. The inner surface of the tube is coated by closing one end of the tube by means of a cork plug, filling the tube by pouring liquid rubber therein and subsequently pouring out excess liquid rubber. The inner surface of a straight tube may be coated by the latter method also the inner surface of a curved tube may be coated on a mandrel by turning the tube inside out. If an aqueous dispersion of the usual vulcanizable latex is used both the inner and outer coatings may be cured at the same time. The latex may be of the precured type. If a dispersion of silicone rubber in any suitable organic liquid is employed it will be necessary at least, partially to cure the first coating before applying the second coating to the opposite surface of the tube. The second coating will then be cured as the final step.
GB9112/55A 1954-07-09 1955-03-29 Improvements in manufacture of coated seamless tubes Expired GB766308A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US766308XA 1954-07-09 1954-07-09

Publications (1)

Publication Number Publication Date
GB766308A true GB766308A (en) 1957-01-16

Family

ID=22133251

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9112/55A Expired GB766308A (en) 1954-07-09 1955-03-29 Improvements in manufacture of coated seamless tubes

Country Status (1)

Country Link
GB (1) GB766308A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1188877B (en) * 1957-10-31 1965-03-11 Titeflex Inc Molding means for a multi-layer corrugated hose and process for the production of an intermediate product
GB2400155A (en) * 2003-06-20 2004-10-06 Ranier Ltd A braided tube and forming a funnel
WO2004112877A1 (en) 2003-06-20 2004-12-29 Ranier Limited A medical device
WO2004112878A1 (en) 2003-06-20 2004-12-29 Coloplast A/S A medical device
CN111546675A (en) * 2020-05-18 2020-08-18 中国热带农业科学院农产品加工研究所 Preparation method of colorful natural latex tube with bicolor cross section

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1188877B (en) * 1957-10-31 1965-03-11 Titeflex Inc Molding means for a multi-layer corrugated hose and process for the production of an intermediate product
GB2400155A (en) * 2003-06-20 2004-10-06 Ranier Ltd A braided tube and forming a funnel
WO2004112877A1 (en) 2003-06-20 2004-12-29 Ranier Limited A medical device
WO2004112878A1 (en) 2003-06-20 2004-12-29 Coloplast A/S A medical device
CN111546675A (en) * 2020-05-18 2020-08-18 中国热带农业科学院农产品加工研究所 Preparation method of colorful natural latex tube with bicolor cross section
CN111546675B (en) * 2020-05-18 2021-01-05 中国热带农业科学院农产品加工研究所 Preparation method of colorful natural latex tube with bicolor cross section

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