GB664192A - Improvements in and relating to navigational systems - Google Patents
Improvements in and relating to navigational systemsInfo
- 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
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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Measurement Of Radiation (AREA)
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.-
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)
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 |
-
1949
- 1949-02-22 GB GB474449A patent/GB664192A/en not_active Expired
Cited By (2)
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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