GB2045536A - Octahedral marine radar reflector mounting - Google Patents
Octahedral marine radar reflector mounting Download PDFInfo
- Publication number
- GB2045536A GB2045536A GB7904479A GB7904479A GB2045536A GB 2045536 A GB2045536 A GB 2045536A GB 7904479 A GB7904479 A GB 7904479A GB 7904479 A GB7904479 A GB 7904479A GB 2045536 A GB2045536 A GB 2045536A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pyramid
- reflector
- plates
- extension arm
- base
- 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.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/27—Adaptation for use in or on movable bodies
- H01Q1/34—Adaptation for use in or on ships, submarines, buoys or torpedoes
-
- 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
- H01Q15/18—Reflecting surfaces; Equivalent structures comprising plurality of mutually inclined plane surfaces, e.g. corner reflector
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Aerials With Secondary Devices (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
A mounting device for mounting an octahedral marine radar reflector in its most efficient attitude comprises a three-sided pyramid the base of which is an equilateral triangle and the sides of which are right- angled isosceles triangles and a mounting arm secured to the base of the pyramid. The mounting arm is adapted to be secured by a base plate in such a manner that the base of the pyramid is horizontal and the pyramid is designed to be housed in any one of the female pyramid housings formed by the cross member plates of an octahedral reflector with each side of the pyramid engaging a corresponding one of the three sides of the pyramid housing of the reflector. This arrangement ensures that all of the plates of the reflector are at 45 DEG to the horizontal and are therefore at their most efficacious as a reflecting medium.
Description
SPECIFICATION
Mounting arrangement for a marine radar
reflector
This invention relates to providing a rigid means of supporting a marine type radar
reflector with an integral means of attachment to the mast or the like of a small boat or vessel to ensure a prescribed angle or attitude of the reflector plates to improve the response and efficiency of the marine radar reflector.
The invention consists of an arm or extension bar or tube and the like provided with a base-plate for fixing to the mast and the like at right angles to the axis of the said extension arm. The said mast fixing plate being integral with the extension arm. At the further or other end of the extension arm are provided three flat fixing plates arranged to form a pyramid like configuration around the axis of the extension arm each of the plates being at an angle of 45 to that of the said axis. The pyramid plate configuration is designed to act as the male unit to fit into the female pyramid area of the radar reflector formed by the cross member plates of the radar reflector.
When the external faces of the male pyramid provided by the extension arm are brought to bear against those provided by the female pyramid area of the reflector it will ensure that as the faces of the male and female pyramid plates are at right angles to the axis of the extension arm the right-angle plates of the reflector will be a fixed relation of angle to that of the extension arm axis.
In this prescribed attitude the invention will ensure that all the cross member plates of the radar reflector will be at an angle of 45 to that of the natural horizon or perpendicular when the extension arm is fixed to the mast or the like in either of the natural positions.
The inventor claims that by providing a pyramid like fixing arrangement as described for marine radar reflectors for fixing to the mast or the like it will ensure that the reflector plates are always in a "rain-catching" attitude when the male and female units are mechanically secured.
The inventor also claims that by providing a configuration as described the invention will provide a housing acceptable to any of the eight female pyramid areas provided by the radar reflector thereby automatically establishing the required "rain-catching" attitude when the extension arm is fixed to the mast or the like in either the horizontal or perpendicular position.
The inventor further claims that by use of the extension arm in a vertical position above the mast-head greater height can be gained for the reflector to be more efficient. It is anticipated that the invention could be fabricated from separate parts or it could be of a one-piece mould or casting and that the material could be of metal or plastic or such suitable material for its purpose.
The base-plate may be of different shapes and thicknesses and the pyramid plates may be of triangular character or strips of material may be used at the appropriate angles.
1. A mounting device for an octahedral marine radar reflector, said device comprising a three-sided pyramid adapted to engage with any one of the eight female pyramid housings of the reflector, with each side of said pyramid engaging respectively a corresponding side of the reflector housing, and means for mounting the device in such a manner that when the base or notional base of the pyramid is substantially horizontal, the plates of the reflector will be disposed substantially at 45 to the horizontal.
2. A mounting device according to claim 1, wherein the pryamid is formed from three substantially flat plates shaped and arranged to form a pyramid like configuration of three sides at 90 degrees to each other at the apex.
3. A mounting device according to claim 1, wherein the pryamid is made of one-piece moulding.
4. A mounting device according to any preceding claim, wherein the base of the pyramid comprises an equilateral triangle and each of the three sides of the pyramid comprises a right-angled isosceles triangle.
5. A mounting device according to any preceding claim, wherein the mounting means comprises an arm or extension bar or tube which is secured at one end to the pyramid.
6. A mounting device according to claim 5, wherein a base plate is secured to the other end of the arm or extension bar or tube, said base plate extending substantially at right angles to the axis of said arm or extension bar or tube.
7. A mounting device as claimed in claim 1 and substantially as hereinbefore described.
**WARNING** end of DESC field may overlap start of CLMS **.
Claims (7)
1. A mounting device for an octahedral marine radar reflector, said device comprising a three-sided pyramid adapted to engage with any one of the eight female pyramid housings of the reflector, with each side of said pyramid engaging respectively a corresponding side of the reflector housing, and means for mounting the device in such a manner that when the base or notional base of the pyramid is substantially horizontal, the plates of the reflector will be disposed substantially at 45 to the horizontal.
2. A mounting device according to claim 1, wherein the pryamid is formed from three substantially flat plates shaped and arranged to form a pyramid like configuration of three sides at 90 degrees to each other at the apex.
3. A mounting device according to claim 1, wherein the pryamid is made of one-piece moulding.
4. A mounting device according to any preceding claim, wherein the base of the pyramid comprises an equilateral triangle and each of the three sides of the pyramid comprises a right-angled isosceles triangle.
5. A mounting device according to any preceding claim, wherein the mounting means comprises an arm or extension bar or tube which is secured at one end to the pyramid.
6. A mounting device according to claim 5, wherein a base plate is secured to the other end of the arm or extension bar or tube, said base plate extending substantially at right angles to the axis of said arm or extension bar or tube.
7. A mounting device as claimed in claim 1 and substantially as hereinbefore described.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB7904479A GB2045536A (en) | 1979-02-08 | 1979-02-08 | Octahedral marine radar reflector mounting |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB7904479A GB2045536A (en) | 1979-02-08 | 1979-02-08 | Octahedral marine radar reflector mounting |
Publications (1)
Publication Number | Publication Date |
---|---|
GB2045536A true GB2045536A (en) | 1980-10-29 |
Family
ID=10503055
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7904479A Withdrawn GB2045536A (en) | 1979-02-08 | 1979-02-08 | Octahedral marine radar reflector mounting |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2045536A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20160197399A1 (en) * | 2013-09-04 | 2016-07-07 | Kelvin Hughes Limited | Radar apparatus for a ship |
-
1979
- 1979-02-08 GB GB7904479A patent/GB2045536A/en not_active Withdrawn
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20160197399A1 (en) * | 2013-09-04 | 2016-07-07 | Kelvin Hughes Limited | Radar apparatus for a ship |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |