GB402016A - Improvements in or relating to unmanned floating signalling stations - Google Patents
Improvements in or relating to unmanned floating signalling stationsInfo
- Publication number
- GB402016A GB402016A GB18722/33A GB1872233A GB402016A GB 402016 A GB402016 A GB 402016A GB 18722/33 A GB18722/33 A GB 18722/33A GB 1872233 A GB1872233 A GB 1872233A GB 402016 A GB402016 A GB 402016A
- Authority
- GB
- United Kingdom
- Prior art keywords
- distant
- signalling
- tuning
- effect
- relating
- 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
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B1/00—Systems for signalling characterised solely by the form of transmission of the signal
- G08B1/08—Systems for signalling characterised solely by the form of transmission of the signal using electric transmission ; transformation of alarm signals to electrical signals from a different medium, e.g. transmission of an electric alarm signal upon detection of an audible alarm signal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/03—Constructional details, e.g. casings, housings
- H04B1/034—Portable transmitters
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Selective Calling Equipment (AREA)
Abstract
402,016. Wireless control of distant signalling-apparatus. PINTSCH AKT.- GES., J., 71, Andreasstrasse, Berlin. July 1, 1933, No. 18722. Convention date, Aug. 22, 1932. Addition to 343,924 and 377,876. [Class 40 (v).] Relates to means for the distant control of an unmanned buoy or similar signalling station of the kind described in Specifications 343,924 and 377,876. According to the invention the clock-work mechanism used for energizing the valves at predetermined intervals is also made periodically to vary the tuning of the receiving circuits over a small range, sufficient to offset the effect of varying climatic conditions, and thereby ensure effective operation by the distant transmitter. The tuning of the latter may also be similarly varied. The effect is secured either by varying the capacity of a condenser such as C1 Fig. 3, or by rotating a switch to change the effective value of an inductance L, Fig. 4.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE343924X | 1928-12-12 | ||
GB33674/31A GB377876A (en) | 1928-12-12 | 1931-12-04 | Improvements in or relating to the control by wireless of unmanned signalling stations |
DEP65892D DE589756C (en) | 1932-08-22 | 1932-08-22 | Floating unmanned signal station |
Publications (1)
Publication Number | Publication Date |
---|---|
GB402016A true GB402016A (en) | 1933-11-23 |
Family
ID=27192455
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB18722/33A Expired GB402016A (en) | 1928-12-12 | 1933-07-01 | Improvements in or relating to unmanned floating signalling stations |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB402016A (en) |
-
1933
- 1933-07-01 GB GB18722/33A patent/GB402016A/en not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB402016A (en) | Improvements in or relating to unmanned floating signalling stations | |
GB472941A (en) | Improvements relating to radio transmitting systems | |
SU39231A1 (en) | Wiring device | |
CH290460A (en) | Radio communication facility. | |
GB356090A (en) | Improvements in or relating to antenna systems | |
GB347956A (en) | Improvements in or relating to radio signalling systems | |
GB377876A (en) | Improvements in or relating to the control by wireless of unmanned signalling stations | |
GB277615A (en) | Improvements relating to pneumatic dispatch and other conveying systems | |
FR656768A (en) | Electric servo-controlled remote control allowing automatic tuning of receiver stations with the transmitter station | |
GB683607A (en) | Improvements in signal regenerators for telegraph and like systems | |
FR734686A (en) | Further training in the control of tracking devices for wireless telegraphy receiving stations or the like | |
GB497774A (en) | Improvements relating to the tuning of radio receivers | |
AU601322A (en) | Improvements in antenna systems for wireless signalling | |
GB445922A (en) | Superheterodyne receiver for wireless reception | |
CA264391A (en) | Radio receiver tuning means | |
CA262495A (en) | Radio receiver | |
CA261798A (en) | Radio receiver | |
AU250431A (en) | Magnetic coupling device for low frequency amplification transformers, particularly for wireless receivers | |
CH288902A (en) | Repeater station with monitoring devices for radio relay traffic systems with frequency modulation. | |
CA347808A (en) | Radio receiver remote control system | |
CA215512A (en) | Aerial system for wireless telegraphy | |
CA271962A (en) | Radio receiver | |
CA270103A (en) | Radio receiver | |
CA269833A (en) | Radio receiver | |
CA216506A (en) | Wireless telegraph receiving system |