GB2045536A - Octahedral marine radar reflector mounting - Google Patents

Octahedral marine radar reflector mounting Download PDF

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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Withdrawn
Application number
GB7904479A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Graham Read R R
Original Assignee
Graham Read R R
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Graham Read R R filed Critical Graham Read R R
Priority to GB7904479A priority Critical patent/GB2045536A/en
Publication of GB2045536A publication Critical patent/GB2045536A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/27Adaptation for use in or on movable bodies
    • H01Q1/34Adaptation for use in or on ships, submarines, buoys or torpedoes
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q15/00Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
    • H01Q15/14Reflecting surfaces; Equivalent structures
    • H01Q15/18Reflecting surfaces; Equivalent structures comprising plurality of mutually inclined plane surfaces, e.g. corner reflector

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  • 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)

**WARNING** start of CLMS field may overlap end of DESC **. 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. CLAIMS
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.
GB7904479A 1979-02-08 1979-02-08 Octahedral marine radar reflector mounting Withdrawn GB2045536A (en)

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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160197399A1 (en) * 2013-09-04 2016-07-07 Kelvin Hughes Limited Radar apparatus for a ship

Cited By (1)

* Cited by examiner, † Cited by third party
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)