GB952738A - Improvements relating to flexible couplings for pipes - Google Patents
Improvements relating to flexible couplings for pipesInfo
- Publication number
- GB952738A GB952738A GB2956959A GB2956959A GB952738A GB 952738 A GB952738 A GB 952738A GB 2956959 A GB2956959 A GB 2956959A GB 2956959 A GB2956959 A GB 2956959A GB 952738 A GB952738 A GB 952738A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tube
- portions
- flanges
- mould
- end plates
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L27/00—Adjustable joints, Joints allowing movement
- F16L27/10—Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations
- F16L27/107—Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations the ends of the pipe being interconnected by a flexible sleeve
- F16L27/108—Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations the ends of the pipe being interconnected by a flexible sleeve the sleeve having the form of a bellows with only one corrugation
-
- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/22—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor using multilayered preforms or parisons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
- F16L33/28—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses for hoses with one end terminating in a radial flange or collar
-
- 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
- B29K2105/08—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
- B29K2105/10—Cords, strands or rovings, e.g. oriented cords, strands or rovings
-
- 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
- B29L2031/24—Pipe joints or couplings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Abstract
952,738. Moulding flexible pipe couplings. DUNLOP RUBBER CO. Ltd. July 19, 1960 [Aug. 29, 1959], No. 29569/59. Heading B5A. A flexible pipe coupling is made by forming a length of mouldable tube 4 with at least two radially inextensible portions, each of which forms a supported portion of the tube, the portions extending axially and circumferentially of the tube and lying spaced apart from each other by a radially extensible portion of the tube and also from the ends of the tube, expanding the radially extensible portion of the tube between the supported portions and moulding the ends of the tube into annular flanges 8, the expansion of the tube between the supported portions being effected at least in part by applying a differential fluid pressure between the interior and exterior of the tube. The tube 4 is formed from mouldable material which remains flexible in its final state such as natural or synthetic rubber or a thermoplastic having a reinforcement 5 of cord or fabric which may be textile or metallic. It is further strengthened at the supports by the incorporation of encircling non-extensible bands 6. In the embodiment described, the apparatus used is a three-part mould (Fig. 4) comprising an axially split segmental hollow cylindrical member 20 and two end plates 30, 31. One of the end plates, 31, is secured to a mould core 32, the two components forming a joint mould member, while the other end plate, 30, has an inlet 33 connecting a fluid pressure supply line to perforations 34 in the core 32. Member 20 is provided with one or more depressions 21 to form the corrugations of the coupling and with recesses 22 to form the flanges 8. A tube 4, of unvulcanised rubber, for example, is placed around the core 32 and the mould then assembled, the end plates 30, 31 forcing the end portions of the tube 4 which have been turned outwards by swaging into the recesses 22 and axially compressing the tube between the flanges to force the unsupported regions into the depressions 21. The mould is then heated and subjected to internal steam or air pressure. In an alternative apparatus, the fluid pressure is applied by an inflatable liner. A tube with preformed expanded portions cut from a length of corrugated tubing may be used in place of a cylindrical tube and the flanges 8 formed as above, the tubing being cut at two peaks with at least one peak in between them. Annular rings of unvulcanised rubber may be positioned between the outwardly directed end portions of the tube 4 and the end plates 30, 31 so that during moulding they become incorporated into the flanges 8.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2956959A GB952738A (en) | 1959-08-29 | 1959-08-29 | Improvements relating to flexible couplings for pipes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2956959A GB952738A (en) | 1959-08-29 | 1959-08-29 | Improvements relating to flexible couplings for pipes |
Publications (1)
Publication Number | Publication Date |
---|---|
GB952738A true GB952738A (en) | 1964-03-18 |
Family
ID=10293593
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2956959A Expired GB952738A (en) | 1959-08-29 | 1959-08-29 | Improvements relating to flexible couplings for pipes |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB952738A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114407373A (en) * | 2021-11-29 | 2022-04-29 | 中国海洋石油集团有限公司 | Flexible joint forming tool |
-
1959
- 1959-08-29 GB GB2956959A patent/GB952738A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114407373A (en) * | 2021-11-29 | 2022-04-29 | 中国海洋石油集团有限公司 | Flexible joint forming tool |
CN114407373B (en) * | 2021-11-29 | 2023-09-01 | 中国海洋石油集团有限公司 | Flexible joint forming tool |
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