GB664192A - Improvements in and relating to navigational systems - Google Patents

Improvements in and relating to navigational systems

Info

Publication number
GB664192A
GB664192A GB474449A GB474449A GB664192A GB 664192 A GB664192 A GB 664192A GB 474449 A GB474449 A GB 474449A GB 474449 A GB474449 A GB 474449A GB 664192 A GB664192 A GB 664192A
Authority
GB
United Kingdom
Prior art keywords
radio
radiation
transmitter
buoy
active material
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
GB474449A
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.)
WALTER LEOPOLD STERN
Original Assignee
WALTER LEOPOLD STERN
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 WALTER LEOPOLD STERN filed Critical WALTER LEOPOLD STERN
Priority to GB474449A priority Critical patent/GB664192A/en
Publication of GB664192A publication Critical patent/GB664192A/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
    • G01S1/68—Marker, boundary, call-sign, or like beacons transmitting signals not carrying directional information

Abstract

664,192. Navigational systems. STERN, W. L. Feb. 20, 1950 [Feb. 22, 1949], No. 4744/49. Class 40 (iii). A navigational system comprises a transmitter containing a radio-active element propagating radiation in selected directions and a detector carried by a craft responsive to this radiation. In the embodiment shown the radio-active material is mounted on a buoy 2 in a cylindrical shroud 4 of lead provided with openings 5 to allow radiation to pass in certain directions only. The shroud may be rotated or may be stationary and have a rotating mask, coaxial with and provided with apertures so that radiation passes in the directions in which the apertures coincide. The radio-active material may be carried on a container which opens automatically to expose the radio-active material when placed in position in the buoy. For example a cylindrical enclosure may slide over a projection in the buoy leaving the material supported on it. The receiver comprises a number of ionization chambers 6 connected in parallel across an high voltage supply. The chambers may be surrounded by a rotatable mask 9 to make the apparatus directional. The detecting member may carry out a scanning movement in synchronism with the beam of a cathode-ray indicator. The strength of the radiation received measured by conventional arrangements gives an indication of the range of the transmitter. In a modification a naphthalene crystal is arranged to fluoresce under the radio-active rays, a photo-cell responding to the flashes, the rate of flashing giving a measure of the transmitter distance. The transmitter may be movable, an arrangement being mentioned in which it is mounted near the top of a ship's anchor so as to be shrouded when the anchor is not in use or uncovered when it is lowered.-
GB474449A 1949-02-22 1949-02-22 Improvements in and relating to navigational systems Expired GB664192A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB474449A GB664192A (en) 1949-02-22 1949-02-22 Improvements in and relating to navigational systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB474449A GB664192A (en) 1949-02-22 1949-02-22 Improvements in and relating to navigational systems

Publications (1)

Publication Number Publication Date
GB664192A true GB664192A (en) 1952-01-02

Family

ID=9782961

Family Applications (1)

Application Number Title Priority Date Filing Date
GB474449A Expired GB664192A (en) 1949-02-22 1949-02-22 Improvements in and relating to navigational systems

Country Status (1)

Country Link
GB (1) GB664192A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3004258A (en) * 1956-08-20 1961-10-10 Franklin Systems Inc Control and guidance of vehicles
US3458159A (en) * 1965-06-16 1969-07-29 Industrial Nucleonics Corp Indicating system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3004258A (en) * 1956-08-20 1961-10-10 Franklin Systems Inc Control and guidance of vehicles
US3458159A (en) * 1965-06-16 1969-07-29 Industrial Nucleonics Corp Indicating system

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