GB748395A - Improvements in or relating to strengthened reinforced structures - Google Patents
Improvements in or relating to strengthened reinforced structuresInfo
- Publication number
- GB748395A GB748395A GB1523652A GB1523652A GB748395A GB 748395 A GB748395 A GB 748395A GB 1523652 A GB1523652 A GB 1523652A GB 1523652 A GB1523652 A GB 1523652A GB 748395 A GB748395 A GB 748395A
- Authority
- GB
- United Kingdom
- Prior art keywords
- former
- reinforcing material
- formers
- laid
- synthetic resin
- 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
- 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/06—Fibrous reinforcements only
- B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
- Laminated Bodies (AREA)
Abstract
748,395. Boats. LASZLO, P. D. DE. Sept. 16, 1953 [June 17, 1952; Dec. 18, 1952], Nos. 15236/52 and 32238/52. Class 113. [Also in Group VIII] A strengthened reinforced structure suitable for boat hulls is constructed by coating at least one layer of reinforcing material with a synthetic resin, the said structure having a rib-like strengthening on it, the rib being also made of reinforcing material and synthetic resin and being formed over a former consisting of a series of substantially independent elements joined together so as to provide a flexible composite elongated former over which further reinforcing material is laid, said composite former having flexibility to follow the curve of a surface but presenting appreciable rigidity in the direction perpendicular to the surface. A double-skin construction may be obtained by bridging the tops of the ribs with further reinforcing material. As shown (Fig. 1) a mould is covered with sheets of glass fibre reinforcing material 10, 11 permeated with a synthetic resin which may be cold-curing, and layers 12, 13 of the same material are laid over a V-section channel former 14 to provide the rib-like strengthening member. The former may be of sheet aluminium, polythene or of leatheroid, bent to form inclined sides 14a, 14b (Fig. 2), a flat top 14c, and inturned feet 14d. The channel so formed is slit at 14e at regular intervals to form short lengths: the slits are relatively wide and include the feet 14d but not the top 14c which is continuous. If desired, the former may be made of individual synthetic resin mouldings or light alloy castings secured along the top by adhesive tape or joined by passing nylon thread through registering holes in each casting. When the former is made of a material to which the resin on the reinforcing material will not adhere (such as polystyrene) it may be withdrawn. Sheets 12 and 13 cover not only the former but at least part of the first layers exposed between the formers. Fig. 4 shows a double-skin construction. The base layer 20 is laid on the mould and a series of formers 21, 22, 23, 24 laid at intervals upon it. One more or less continuous sheet 25 of the fabric is laid over all the formers, and resin applied thereto. The vertices of the formers are bridged by further sheets of reinforcing material: sheet 26 bridges formers 23, 24 and extends down those sides further from each other, terminating on the base layer. The layer 27 starts at the top of 24, bridges 23 and 22 and extends down the further side of 22 to terminate on 25. Similarly the next sheet starts at the top of 23, bridges 22 and 21 and extends down the further side of 21 on to layer 25. On completing the assembly, the resin is cured.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1523652A GB748395A (en) | 1952-06-17 | 1952-06-17 | Improvements in or relating to strengthened reinforced structures |
GB2626960A GB1008060A (en) | 1952-06-17 | 1960-07-28 | Improvements in and relating to reinforced structures |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1523652A GB748395A (en) | 1952-06-17 | 1952-06-17 | Improvements in or relating to strengthened reinforced structures |
Publications (1)
Publication Number | Publication Date |
---|---|
GB748395A true GB748395A (en) | 1956-05-02 |
Family
ID=10055460
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1523652A Expired GB748395A (en) | 1952-06-17 | 1952-06-17 | Improvements in or relating to strengthened reinforced structures |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB748395A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0373729A2 (en) * | 1988-12-14 | 1990-06-20 | Shell Internationale Researchmaatschappij B.V. | Method for strengthening a panel |
US5249997A (en) * | 1992-03-27 | 1993-10-05 | Westinghouse Electric Corp. | Composite multisection buoyant structure |
-
1952
- 1952-06-17 GB GB1523652A patent/GB748395A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0373729A2 (en) * | 1988-12-14 | 1990-06-20 | Shell Internationale Researchmaatschappij B.V. | Method for strengthening a panel |
EP0373729A3 (en) * | 1988-12-14 | 1992-09-02 | Shell Internationale Researchmaatschappij B.V. | Method for strengthening a panel |
US5249997A (en) * | 1992-03-27 | 1993-10-05 | Westinghouse Electric Corp. | Composite multisection buoyant structure |
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