GB814976A - Improvements in and relating to radio aerials - Google Patents
Improvements in and relating to radio aerialsInfo
- Publication number
- GB814976A GB814976A GB909156A GB909156A GB814976A GB 814976 A GB814976 A GB 814976A GB 909156 A GB909156 A GB 909156A GB 909156 A GB909156 A GB 909156A GB 814976 A GB814976 A GB 814976A
- Authority
- GB
- United Kingdom
- Prior art keywords
- layer
- lattice
- plastic
- march
- grid
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/14—Reflecting surfaces; Equivalent structures
- H01Q15/141—Apparatus or processes specially adapted for manufacturing reflecting surfaces
- H01Q15/142—Apparatus or processes specially adapted for manufacturing reflecting surfaces using insulating material for supporting the reflecting surface
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Aerials With Secondary Devices (AREA)
Abstract
814,976. Moulding radio reflectors. CLEMENTS, H. J. March 25, 1957 [March 23, 1956], No. 9091/56. Class 87(2). [Also in Group XL(c)] A radio reflector is formed by covering the face of a shaped lattice of metal or other material with a plastic layer and then coating the outer face of the layer with metal. In one method of applying the plastic layer to the lattice the latter 10, 11 is inverted and supported by a structure 20. A sheet 21 of flexible material such as rubber extends over the top of a box 22 beneath the lattice and on top of the rubber is laid the layer 13 of plastic in a mouldable condition. Pressure inside the box is raised to press the layer against the lattice and maintained until the plastic is curved and attached to the lattice. The layer may be of woven glass cloth impregnated with a polyester resin or asbestos felt and a phenolic or epoxy resin. In a modified constructional method a grid of close mesh wire is covered with a material to prevent adhesion and placed over the plastic layer before pressure is applied. After the layer has been formed to the required shape the grid is removed and the formed layer bonded to the lattice.
Publications (1)
Publication Number | Publication Date |
---|---|
GB814976A true GB814976A (en) | 1959-06-17 |
Family
ID=1629628
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB909156A Expired GB814976A (en) | 1956-03-23 | Improvements in and relating to radio aerials |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB814976A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5258767A (en) * | 1989-03-14 | 1993-11-02 | Kokusai Denshin Denwa Co., Ltd. | Antenna system for shaped beam |
-
1956
- 1956-03-23 GB GB909156A patent/GB814976A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5258767A (en) * | 1989-03-14 | 1993-11-02 | Kokusai Denshin Denwa Co., Ltd. | Antenna system for shaped beam |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5551524A (en) | Preparation of dressed material | |
ES446026A1 (en) | Rigid supporting bandage and method for applying same | |
EP0004478A3 (en) | Method and apparatus for vacuum moulding reinforced sheet plastics material | |
ES488407A1 (en) | Multilayer anti-drumming and stiffening sheeting | |
CN106895740A (en) | Composite material film protecgulum with rubber as matrix and preparation method thereof | |
GB814976A (en) | Improvements in and relating to radio aerials | |
ES8405688A1 (en) | Moulded body with a pressure-moulded polyester-impregnated fibrous sheet of coconut, cotton or jute and method for its production. | |
GB895339A (en) | Improvements in or relating to the manufacture of moulded bodies | |
GB1259818A (en) | Method of bonding a thermoplastic sheet to a substrate | |
GB723535A (en) | Improvements in or relating to the manufacture of non-metallic laminar articles | |
FR2096506A1 (en) | Thermosetting resin articles - by compressing and curing | |
GB2019253A (en) | Sheet materials | |
GB1190261A (en) | Improvements in or relating to Laminated Plastics Constructions | |
JPS5575397A (en) | Manufacture of speaker diaphragm | |
JPS5539821A (en) | Manufacturing method of automobile sun visor | |
JPS5656820A (en) | Low cost die and manufacture thereof | |
GB964738A (en) | Printing plate | |
GB857274A (en) | Improved apparatus for the production of resin reinforced materials | |
GB874211A (en) | Improvements in or relating to waterproof apparatus casings made from moulding material reinforced by glass fibres | |
JPS5649215A (en) | Manufacture of decorative board adhered with single plywood devoid of crack in coated film | |
GB849982A (en) | Improvements in or relating to commercial vehicle bodies | |
JPS557455A (en) | Production of integrally molded body | |
GB812384A (en) | Improvements in or relating to radar reflectors | |
JPS55147098A (en) | Manufacture of diaphragm plate for speaker | |
ES259462A1 (en) | Composite sheet fabricating apparatus and method |