GB2300604A - Beacon - Google Patents

Beacon Download PDF

Info

Publication number
GB2300604A
GB2300604A GB9509641A GB9509641A GB2300604A GB 2300604 A GB2300604 A GB 2300604A GB 9509641 A GB9509641 A GB 9509641A GB 9509641 A GB9509641 A GB 9509641A GB 2300604 A GB2300604 A GB 2300604A
Authority
GB
United Kingdom
Prior art keywords
source
buoyant
energising
dome
beacon
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Withdrawn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
GB9509641A
Other versions
GB9509641D0 (en
Inventor
Philip Wilmott
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.)
Colebrand Ltd
Original Assignee
Colebrand Ltd
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 Colebrand Ltd filed Critical Colebrand Ltd
Priority to GB9509641A priority Critical patent/GB2300604A/en
Publication of GB9509641D0 publication Critical patent/GB9509641D0/en
Publication of GB2300604A publication Critical patent/GB2300604A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B22/00—Buoys
    • B63B22/16—Buoys specially adapted for marking a navigational route

Abstract

In order to adjust the height of a source of electromagnetic radiation above the level of liquid on which a buoyant body floats and supports the source, the body is formed with a first buoyant portion 11 and a second portion 12 which is adjustably mounted on the first portion 11. As shown infrared emitting sources are contained in a dome 13 at the top of the second portion and energised by batteries disposed in a compartment 14. The first buoyant portion 11 is of ellipsoid shape and made of plastics material.

Description

BIACOM This invention relates to a beacon for emitting electromagnetic radiation in a water environment.
Buoys are used to mark locations and comprise a buoyant body, a source of electromagnetic radiation mounted on the body and means for energising the source. The buoyant body is usually of fixed construction, so that once the buoy has been constructed the light source has a single unadjustable relationship to the surface of the water in which the buoyant body floats.
The present invention improves on this arrangement by providing a buoyant body comprising a first buoyant portion and a second portion which is adjustably mounted on the first portion, the source being mounted on the second portion so that the relationship of the source and the second portion can be adjusted relative to the first portion. With this arrangement, the height of the source above the surface of the water can be adjusted.
In a preferred arrangement the second portion extends through the first portion, the source being mounted at or adjacent one end of the second portion and the means for energising the source being mounted at the other end of the second portion. The energising means preferably comprises a battery compartment which in use contains batteries for energising the source.
An example of the invention will now be described with reference to the accompanying diagram of an infrared emitting flotation beacon.
The beacon comprises a first portion 11 which is a buoyant body of ellipsoid shape, formed in this example of lightweight plastics material which does not become waterlogged. The ellipsoid is formed with a central cylindrical aperture, through which passes a second portion 12, of cylindrical shape, on which is mounted at its top end a dome 13 containing infrared emitting sources such as diodes and at its bottom end there is formed a battery compartment 14 for containing batteries to energise the infrared sources. The batteries, when in position, provide ballast for the device, maintaining the second portion in an approximately vertical position with the dome uppermost in order to give the dome maximum visibility above the surface of the water.
Control devices (not shown) are included within the second portion to control the infrared radiation, for example to energise the sources continuously or intermittently according to preselected codes. The control device may comprise a radio receiver for receiving control instructions to control the energisation of the source.
The construction of the device facilitates its use as a beacon to be dropped from aircraft into water. The control device for controlling the energisation of the dome can be set in the aircraft before the drop, as can the relative positions of the first and second portions in order that the height of the dome above the water surface can be controlled.

Claims (4)

1. A buoyant body comprising a first buoyant portion, a second portion which is adjustably mounted on the first portion, and an electromagnetic radiation source mounted on the second portion so that the relationship of the source and the second portion can be adjusted relative to the first portion.
2. A body as claimed in claim 1 wherein the second portion extends through the first portion, the source being mounted at or adjacent one end of the second portion and the means for energising the source being mounted at the other end of the second portion.
3. A body as claimed in claim 2 wherein the energising means comprises preferably a battery compartment which in use contains batteries for energising the source.
4. A buoyant body substantially as herein described with reference to the accompanying drawings.
GB9509641A 1995-05-12 1995-05-12 Beacon Withdrawn GB2300604A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9509641A GB2300604A (en) 1995-05-12 1995-05-12 Beacon

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9509641A GB2300604A (en) 1995-05-12 1995-05-12 Beacon

Publications (2)

Publication Number Publication Date
GB9509641D0 GB9509641D0 (en) 1995-07-05
GB2300604A true GB2300604A (en) 1996-11-13

Family

ID=10774370

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9509641A Withdrawn GB2300604A (en) 1995-05-12 1995-05-12 Beacon

Country Status (1)

Country Link
GB (1) GB2300604A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2414968A (en) * 2004-06-07 2005-12-14 Thales Uk Plc Buoyant device with variable buoyancy characteristics

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB914009A (en) * 1960-06-14 1962-12-28 Franz Luenenschloss G M B H Device for marking locations at sea, more particularly an emergency marker
US4077076A (en) * 1976-04-28 1978-03-07 Masters John L Anchor light
US4099282A (en) * 1977-05-09 1978-07-11 Townsend Richard E Floatable pole marker beacon

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB914009A (en) * 1960-06-14 1962-12-28 Franz Luenenschloss G M B H Device for marking locations at sea, more particularly an emergency marker
US4077076A (en) * 1976-04-28 1978-03-07 Masters John L Anchor light
US4099282A (en) * 1977-05-09 1978-07-11 Townsend Richard E Floatable pole marker beacon

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2414968A (en) * 2004-06-07 2005-12-14 Thales Uk Plc Buoyant device with variable buoyancy characteristics
GB2414968B (en) * 2004-06-07 2008-10-22 Thales Uk Plc Buoyant device

Also Published As

Publication number Publication date
GB9509641D0 (en) 1995-07-05

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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)