GB1518971A - Marine disaster alert device - Google Patents

Marine disaster alert device

Info

Publication number
GB1518971A
GB1518971A GB24276/75A GB2427675A GB1518971A GB 1518971 A GB1518971 A GB 1518971A GB 24276/75 A GB24276/75 A GB 24276/75A GB 2427675 A GB2427675 A GB 2427675A GB 1518971 A GB1518971 A GB 1518971A
Authority
GB
United Kingdom
Prior art keywords
transmitter
ship
inductively coupled
coupled via
pressure
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
Application number
GB24276/75A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB24276/75A priority Critical patent/GB1518971A/en
Publication of GB1518971A publication Critical patent/GB1518971A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
    • G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
    • G01S1/04—Details
    • G01S1/042—Transmitters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
    • G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
    • G01S1/68—Marker, boundary, call-sign, or like beacons transmitting signals not carrying directional information
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S2201/00—Indexing scheme relating to beacons or beacon systems transmitting signals capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters
    • G01S2201/01—Indexing scheme relating to beacons or beacon systems transmitting signals capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters adapted for specific applications or environments
    • G01S2201/04—Emergencies
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S2201/00—Indexing scheme relating to beacons or beacon systems transmitting signals capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters
    • G01S2201/01—Indexing scheme relating to beacons or beacon systems transmitting signals capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters adapted for specific applications or environments
    • G01S2201/08—Marine or water borne applications

Abstract

1518971 Disaster alert device STANDARD TELEPHONES & CABLES Ltd 1 June 1976 [5 June 1975 11 Nov 1975] 24276/75 Heading H4L A marine disaster alert device comprises a self powered transmitter arrangement which operates upon a sensor sensing an increase in pressure due to immersion of the device in water. The device comprises floating unit 3 normally inductively coupled via couplings 24, 22, to a disaster sensor unit 1, and to a vessel's wiring. Should the pressure increase be sensed, explosive bolts 2 separate units 1 & 3 from the ship, transmitter 4 then operating through a whip or balloon borne aerial to transmit identity, and/or location signals, the latter comprising the position in Loran or Omega coordinates. The time of release may also be transmitted, if the transmitter itself is borne aloft by the balloon. For locating, a transponder operating independently of the transmitter may be provided. Monitoring.-While the device is fixed to the ship, power inductively coupled via 22, 24 from the ship's supply charges batteries 7, 11, whose voltages control the frequencies of controlled oscillators 9, 13, which frequencies are inductively coupled to battery monitor 28. A diagnostic input may be coupled via register 5 to monitor the transmitter, register 5 serving to provide the modulating signal when the device is released. A rate circuit ensures that a pressure rise signal is not given in response to a slow pressure build-up due to icing. A floating housing for the transmitter may drift freely, or be coupled to a drift anchor, or to the wreck. The housing may incorporate a dye marker.
GB24276/75A 1976-06-01 1976-06-01 Marine disaster alert device Expired GB1518971A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB24276/75A GB1518971A (en) 1976-06-01 1976-06-01 Marine disaster alert device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB24276/75A GB1518971A (en) 1976-06-01 1976-06-01 Marine disaster alert device

Publications (1)

Publication Number Publication Date
GB1518971A true GB1518971A (en) 1978-07-26

Family

ID=10209173

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24276/75A Expired GB1518971A (en) 1976-06-01 1976-06-01 Marine disaster alert device

Country Status (1)

Country Link
GB (1) GB1518971A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2122848A (en) * 1982-05-28 1984-01-18 Martin Frederick Moore A security system
GB2271237A (en) * 1992-10-01 1994-04-06 John Malcolm Copeland Emergency locator transmitter
GB2292496B (en) * 1993-05-14 1997-08-27 Worldwide Notific Syst Apparatus and method for closing flight plans and locating aircraft

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2122848A (en) * 1982-05-28 1984-01-18 Martin Frederick Moore A security system
GB2271237A (en) * 1992-10-01 1994-04-06 John Malcolm Copeland Emergency locator transmitter
GB2292496B (en) * 1993-05-14 1997-08-27 Worldwide Notific Syst Apparatus and method for closing flight plans and locating aircraft

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee