GB761212A - Reinforced flexible conduits and method for manufacturing same - Google Patents
Reinforced flexible conduits and method for manufacturing sameInfo
- Publication number
- GB761212A GB761212A GB34146/54A GB3414654A GB761212A GB 761212 A GB761212 A GB 761212A GB 34146/54 A GB34146/54 A GB 34146/54A GB 3414654 A GB3414654 A GB 3414654A GB 761212 A GB761212 A GB 761212A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tube
- hose
- mandrel
- chamber
- interior
- 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
-
- 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
- B29D23/18—Pleated or corrugated hoses
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
761,212. Flexible tubes. DAYTON RUBBER CO. Nov. 25, 1954 [Dec. 14, 1953], No. 34146/54. Class 99(2) In a hose including a helical reinforcing member 44 which has at least the surface thereof made of flexible material such as natural rubber, synthetic rubber-like compositions, or plastic material, and which is surrounded by a tube 41 of the same material, the tube is corrugated between the convolutions of the member and together with the latter provides a smooth cvlindrical inner hose surface composed of alternating surface sections of the tube and the member. The preferred materials are natural rubber, the various synthetic rubber-like compositions such as polychloroprenes known as neoprene, the butadiene-styrene copolymers known as Buna-S or GR-S (Registered Trade Marks), the butadiene-acrylic nitrile copolymers referred to a Buna-N or GR-A, the various polysulphides known as Thiokol (Registered Trade Mark), Butyl rubber, the various mouldable thermoplastic materials such as vinyl copolymers, the cellulose compounds, and polyethylene, or a mixture or combination of any of these materials. As shown in Fig. 7, the reinforcing member 44 comprises a helically wound wire 45 uniformly coated with a plastic material 46 having a flat surface 48; alternatively, the member consists of plastic material, or the plastic coating of the wire is extruded and triangular in cross-section, Fig. 8 (not shown), to present a flat surface at the interior surface of the hose. In constructing the hose a reinforcing member 10, Figs. 2 and 3 is placed on a perforated, hollow mandrel 13. closed at each end by a plug 20, and, if required, held in the desired position by friction tape, end reinforcements 16, 17 of rubberized fabric, which may be incorporated in the hose, being placed at each end of the mandrel before or after positioning the member. A tube 19 of plastic material having an internal diameter less than the external diameter of the mandrel is positioned over the member 10 to extend beyond the ends of the member and cover all the perforations 18 in the mandrel, the elastic nature of the tube causing the tube to draw inwardly and to firmly grasp and coalesce with the member. The ends of the tube are bound with friction tape as shown at 21 and 21a to more effectively, seal the interior of the mandrel from the surrounding atmosphere, and an adhesive may be applied between the member and tube; alternatively, the mandrel is provided at one end with a valve and the interior of the mandrel is subjected to a vacuum so that the tube 19 is forced by the surrounding atmosphere inwardly and around the member 10 and against the mandrel to form corrugations in the wall of the hose. The corrugations can be formed by winding a cord or cable about the tube and between the convolutions of the member 10. The completed hose assembly is placed in a curing chamber 33, Fig. 5, provided with inlet or outlet means 34, or both, through which heated air or steam under the desired pressure conditions may be introduced into the chamber. The mandrel is supported on blocks 35, 36. When the hose is made according to method described with reference to Fig. 3 the pressure in the chamber is such as to force the tube 19 inwardly and around the convolutions of the member 10 to obtain a corrugated exterior surface. The interior of the mandrel may be subjected to a vacuum while in the chamber. In an alternative method of curing the hose, each end of the wire helix is connected to a source of electric current the heating effect of which causes curing of and coalescence between the member 10 and tube 19. In order to enhance the flexibility of the hose, the hose may be axially compressed after the initial corrugating step and partial curing.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US761212XA | 1953-12-14 | 1953-12-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB761212A true GB761212A (en) | 1956-11-14 |
Family
ID=22130048
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB34146/54A Expired GB761212A (en) | 1953-12-14 | 1954-11-25 | Reinforced flexible conduits and method for manufacturing same |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB761212A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1223205B (en) * | 1958-06-30 | 1966-08-18 | Dayco Corp | Flexible hose |
US5146011A (en) * | 1990-03-05 | 1992-09-08 | Olin Corporation | Preparation of chlorohydrins |
GB2370336A (en) * | 2000-12-20 | 2002-06-26 | Meijiflex Co Ltd | Composite hose with hollow inner spiral coil |
WO2019120666A1 (en) * | 2017-12-20 | 2019-06-27 | Contitech Mgw Gmbh | Method for producing a molded hollow body, and device for carrying out the method |
WO2019120667A1 (en) * | 2017-12-20 | 2019-06-27 | Contitech Mgw Gmbh | Method for producing a molded hollow body, and device for carrying out the method |
WO2019120668A1 (en) * | 2017-12-20 | 2019-06-27 | Contitech Mgw Gmbh | Method for producing a molded hollow body, and device for carrying out the method |
WO2019120676A1 (en) * | 2017-12-20 | 2019-06-27 | Contitech Mgw Gmbh | Method for producing a molded hollow body, and device for carrying out the method |
-
1954
- 1954-11-25 GB GB34146/54A patent/GB761212A/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1223205B (en) * | 1958-06-30 | 1966-08-18 | Dayco Corp | Flexible hose |
US5146011A (en) * | 1990-03-05 | 1992-09-08 | Olin Corporation | Preparation of chlorohydrins |
GB2370336A (en) * | 2000-12-20 | 2002-06-26 | Meijiflex Co Ltd | Composite hose with hollow inner spiral coil |
WO2019120666A1 (en) * | 2017-12-20 | 2019-06-27 | Contitech Mgw Gmbh | Method for producing a molded hollow body, and device for carrying out the method |
WO2019120667A1 (en) * | 2017-12-20 | 2019-06-27 | Contitech Mgw Gmbh | Method for producing a molded hollow body, and device for carrying out the method |
WO2019120668A1 (en) * | 2017-12-20 | 2019-06-27 | Contitech Mgw Gmbh | Method for producing a molded hollow body, and device for carrying out the method |
WO2019120676A1 (en) * | 2017-12-20 | 2019-06-27 | Contitech Mgw Gmbh | Method for producing a molded hollow body, and device for carrying out the method |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2766806A (en) | Method of making corrugated flexible conduits | |
US3080891A (en) | Extensible hose | |
US2782803A (en) | Reinforced flexible conduit | |
US2430081A (en) | Method of making flexible tubes | |
US2570259A (en) | Method of and apparatus for the manufacture of flexible conduits | |
GB800374A (en) | Improvements relating to flexible tubing | |
US2901024A (en) | Method of making hose | |
US2508774A (en) | Flexible tube | |
US1746701A (en) | Flexible conduit and method of making the same | |
US3028289A (en) | Method of making flexible reinforced corrugated hose | |
US3194705A (en) | Method and apparatus for making reinforced corrugated hose | |
US2713885A (en) | Method of making flexible hose | |
GB761212A (en) | Reinforced flexible conduits and method for manufacturing same | |
US2780273A (en) | Method and apparatus for making a molded flexible hose | |
US1797193A (en) | Method of making flexible conduits | |
US2838796A (en) | Method and apparatus for pressure curing of materials | |
US2949133A (en) | Flexible conduit | |
US4182019A (en) | Method for making corrugated hose | |
US3294607A (en) | Method of making flexible reinforced conduit | |
US2741267A (en) | Flexible hose | |
US1280170A (en) | Hose and method of making same. | |
GB673043A (en) | Improvements relating to flexible tubing | |
US2891581A (en) | Flexible hose and method of making the same | |
US2810400A (en) | Reinforced flexible duct | |
US2715914A (en) | Flexible tube |