GB315990A - Improvements in radio direction finders - Google Patents
Improvements in radio direction findersInfo
- Publication number
- GB315990A GB315990A GB1978528A GB1978528A GB315990A GB 315990 A GB315990 A GB 315990A GB 1978528 A GB1978528 A GB 1978528A GB 1978528 A GB1978528 A GB 1978528A GB 315990 A GB315990 A GB 315990A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pinion
- gears
- dial
- graduated
- frame aerial
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
315,990. Radio Communication Co., Ltd., and Best, F. P. July 7, 1928. Directive signalling. - The effect of quadrantal or similar asymmetric error on the true direction of the incoming wavefront in direction finding equipment is automatically compensated bv applying the necessary correcting-movement by mechanical gearing to the graduated dial across which the indicator needle moves. As shown in plan in the Figure, a frame aerial F is mounted to rotate about an axis O. An arm G is fixed to the axis O, so as to move with the frame aerial, and carries a pinion B which gears with a pinion A fixed to the framework, and a pinion C which gears with the pinion B. A pin P on the latter engages with a, radial or curved slot K formed in the graduated indicator dial D. The result is that as the frame aerial is rototed the chain of gears imparts an independent movement to the graduated dial D, the amount of which depends upon the radial distance of the point P from the centre Q. This and the shape of the slot K can be adjusted to agree with the existing quadrantal or other error. Alternatively the gears A and C can be arranged as an epicyclic pair. Or the necessary correction can be shown on a separate indicator dial.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1978528A GB315990A (en) | 1928-07-07 | 1928-07-07 | Improvements in radio direction finders |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1978528A GB315990A (en) | 1928-07-07 | 1928-07-07 | Improvements in radio direction finders |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB315990A true GB315990A (en) | 1929-07-25 |
Family
ID=10135174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1978528A Expired GB315990A (en) | 1928-07-07 | 1928-07-07 | Improvements in radio direction finders |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB315990A (en) |
-
1928
- 1928-07-07 GB GB1978528A patent/GB315990A/en not_active Expired
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| FR800869A (en) | Improvements in tracking by radio waves | |
| GB315990A (en) | Improvements in radio direction finders | |
| US2070675A (en) | Triangle-protractor | |
| GB772228A (en) | A timepiece face having a changing decoration | |
| US1281703A (en) | Telemeter or range-finder. | |
| SU78113A1 (en) | Solar Deviation Direction Finder | |
| GB337217A (en) | Improvements in devices for determining the trim of ships | |
| GB251918A (en) | Apparatus for use on ships or aircraft for indicating and recording rolling and pitching | |
| US1593276A (en) | Radio direction finder | |
| FR694253A (en) | Celluloid watch strap | |
| US1828395A (en) | Radio compass correcting device | |
| SU25925A1 (en) | Device for direct reading of the true bearing | |
| CH152942A (en) | Clockwork movement with adjustment device. | |
| GB204156A (en) | Improvements in nautical astronomy calculating apparatus | |
| FR685787A (en) | Watch with dial protection device | |
| FR546877A (en) | Advanced graduated compass | |
| FR764730A (en) | Device for the adjustment by small degrees of resistances, in particular dewatted resistors | |
| FR691683A (en) | Watch with rotating blades, forming a protective screen of the dial | |
| GB209038A (en) | Mechanism for transforming a displacement of a member into an inversely proportionaldisplacement of another member | |
| CH152943A (en) | Clock movement adjustment device. | |
| CA219512A (en) | Adjustable compass dial | |
| FR699572A (en) | Movement correction device for devices mounted on ships | |
| FR686460A (en) | Correction device for gyroscopic compass indications | |
| GB458140A (en) | Improvements in damping means for movable indicators such as inclinometers | |
| FR864904A (en) | Watch strap with adjustable calendar mechanism |