GB868572A - Improvements in and relating to method and apparatus for the continuous production of fluid-tight and flexible pipes - Google Patents

Improvements in and relating to method and apparatus for the continuous production of fluid-tight and flexible pipes

Info

Publication number
GB868572A
GB868572A GB8351/59A GB835159A GB868572A GB 868572 A GB868572 A GB 868572A GB 8351/59 A GB8351/59 A GB 8351/59A GB 835159 A GB835159 A GB 835159A GB 868572 A GB868572 A GB 868572A
Authority
GB
United Kingdom
Prior art keywords
coating
pipe
reinforcement
thermosensitive
coating material
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
GB8351/59A
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.)
CIE FRANCAISE OTHERMO
Original Assignee
CIE FRANCAISE OTHERMO
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 CIE FRANCAISE OTHERMO filed Critical CIE FRANCAISE OTHERMO
Publication of GB868572A publication Critical patent/GB868572A/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

Abstract

A composite pipe with a woven or braided <FORM:0868572/III/1> fabric reinforcement and an inner and/or outer flexible coating is made by applying, to the corresponding side of the reinforcement, a natural or synthetic rubber latex made by thermosensitive by polyvinyl methyl ether and then heating the coating. The latex compositions may be prevulcanized or contain vulcanizing ingredients and are stored at a controlled temperature before use so as to eliminate bubbles. In a continuous process a tubular fabric reinforcement A, e.g. of diameter 100 mms., is woven about a fixed tubular mandrel 3 in a circular loom D, and rises vertically as it is formed. Thermosensitive coating material is introduced into the reinforcement A through a pipe 17 connected to a reservoir 7, and is caused to gel to form an internal coating B by an oven 19 provided with infra-red heating lamps 20. An external coating is formed in the device F, which comprises an annular member 24, supplied with thermosensitive coating material from a reservoir 21. The pipe A, B, enters the coating material through a seal in the bottom of the member 24 and then passes through a sleeve 26 having a tubular extension 27, which may be of glass, and determines the outer diameter of the coating C. The extension 27 is heated, to gel the outer coating, by a jacket 28 through which heated fluid is circulated; alternatively, electric resistances may be used. The pipe finally passes through an oven 6, provided with infra-red heaters 31.
GB8351/59A 1958-03-18 1959-03-11 Improvements in and relating to method and apparatus for the continuous production of fluid-tight and flexible pipes Expired GB868572A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR868572X 1958-03-18

Publications (1)

Publication Number Publication Date
GB868572A true GB868572A (en) 1961-05-17

Family

ID=9346203

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8351/59A Expired GB868572A (en) 1958-03-18 1959-03-11 Improvements in and relating to method and apparatus for the continuous production of fluid-tight and flexible pipes

Country Status (1)

Country Link
GB (1) GB868572A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3423494A (en) * 1964-12-07 1969-01-21 Fred T Roberts & Co Method of making a reinforced hose

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3423494A (en) * 1964-12-07 1969-01-21 Fred T Roberts & Co Method of making a reinforced hose

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