GB1326037A - Multiple ply tubular structure - Google Patents
Multiple ply tubular structureInfo
- Publication number
- GB1326037A GB1326037A GB1326037DA GB1326037A GB 1326037 A GB1326037 A GB 1326037A GB 1326037D A GB1326037D A GB 1326037DA GB 1326037 A GB1326037 A GB 1326037A
- Authority
- GB
- United Kingdom
- Prior art keywords
- web
- layer
- fibrous
- tube
- layers
- 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
- F16L9/00—Rigid pipes
- F16L9/16—Rigid pipes wound from sheets or strips, with or without reinforcement
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
Abstract
1326037 Convolutely-wound tubes TAKATA KOJYO CO Ltd 11 Aug 1970 38577/70 Heading F2P A tube comprises a web of superimposed layers of different plastics materials, the web having reinforcing fibres embedded therein, the web being convolutely wound with confronting faces of successive convolutions bonded together, e.g. by heat sealing or by the use of adhesive, plasticizer or solvent. A large fraction of the fibres may be circumferentially orientated. As shown the web comprises a fibrous layer 1 between layers 12 and 13 of different polymeric materials. Layer 12 may be of p.v.c. and layer 13 may be of nylon or synthetic rubber. The convolutions are secured by adhesive 3. Edges 4 of the web are bevelled. The web may include two or more similar or different fibrous layers. The tube may be lined with a nylon or synthetic rubber tube or with a metal foil tube, and in the latter case, a tail formed integrally with the metal tube lies between and is bonded to the innermost convolutions. A polymeric tubular cover may be heat shrunk over the wound web. Two convolutely wound webs may be located one within the other with a layer of heat insulating, cushioning material, e.g. expanded or foamed resin, therebetween. The fibrous reinforcement may be woven, knitted or non-woven. The fibres may be staple or continuous and may be of nylon, polyester, polyolefines, polyacrylonitriles, polyvinyl alcohol, cotton, hemp, jute, ramie, sisal, wool, asbestos, cellulose, glass or metal. A fibrous reinforcing layer may be embedded in each plastics layer of the laminated web. Alternatively, the fibrous layer may be located between the plastics layers.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3857770 | 1970-08-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1326037A true GB1326037A (en) | 1973-08-08 |
Family
ID=10404383
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1326037D Expired GB1326037A (en) | 1970-08-11 | 1970-08-11 | Multiple ply tubular structure |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1326037A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2218772A (en) * | 1988-05-20 | 1989-11-22 | Smiths Industries Plc | Sound absorbing ducting |
DE10312700A1 (en) * | 2003-03-21 | 2004-09-30 | Brugg Rohr Ag, Holding | Plastic pipe incorporates a metal layer in the form of a foil which has a longitudinal seam and is shaped as a bellows |
WO2008122972A1 (en) * | 2007-04-10 | 2008-10-16 | Netafim Ltd. | Irrigation pipe |
-
1970
- 1970-08-11 GB GB1326037D patent/GB1326037A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2218772A (en) * | 1988-05-20 | 1989-11-22 | Smiths Industries Plc | Sound absorbing ducting |
DE10312700A1 (en) * | 2003-03-21 | 2004-09-30 | Brugg Rohr Ag, Holding | Plastic pipe incorporates a metal layer in the form of a foil which has a longitudinal seam and is shaped as a bellows |
WO2008122972A1 (en) * | 2007-04-10 | 2008-10-16 | Netafim Ltd. | Irrigation pipe |
US7886775B2 (en) | 2007-04-10 | 2011-02-15 | Netafim, Ltd. | Irrigation pipe |
USRE47697E1 (en) | 2007-04-10 | 2019-11-05 | Netafim, Ltd | Irrigation pipe |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |