GB433638A - Improvements in and relating to thermionic indicating or recording apparatus for intermittent impulses - Google Patents
Improvements in and relating to thermionic indicating or recording apparatus for intermittent impulsesInfo
- Publication number
- GB433638A GB433638A GB557334A GB557334A GB433638A GB 433638 A GB433638 A GB 433638A GB 557334 A GB557334 A GB 557334A GB 557334 A GB557334 A GB 557334A GB 433638 A GB433638 A GB 433638A
- Authority
- GB
- United Kingdom
- Prior art keywords
- recorder
- indicating
- recording apparatus
- type
- admiralty
- 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
- G01S1/72—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 ultrasonic, sonic or infrasonic waves
Abstract
433,638. Echo-sounding and distancemeasuring apparatus. WOOD, A. B., and McGEACHY, J. A., Admiralty Research Laboratory, Teddington, Middlesex, and DRYSDALE, C. V., Admiralty, London. Feb. 20, 1934, No. 5573. [Class 118 (ii)] [See also Group XL] In indicating or recording apparatus for echosounding and distance - measuring operated directly from a gas discharge valve, means operated in synchronism with a moving part of the recorder are provided to control the relative periods of time during which the anode is connected to the recorder. The Figure shows an arrangement in which a switch member 29 connects the condenser 4 over resistance 3 to the high tension supply 1 immediately after the transmitter has functioned and breaks the circuit at intervals. In a modification, Fig. 2, (not shown) a commutator is inserted in the high tension supply which is interrupted at a frequency dependent on the speed of a moving part of the recorder. The recorder may be of the electro-chemical type as described in Specification 375,375 or of the self-marking type or of the type using an inked thread associated with an electromagnetic marker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB557334A GB433638A (en) | 1934-02-20 | 1934-02-20 | Improvements in and relating to thermionic indicating or recording apparatus for intermittent impulses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB557334A GB433638A (en) | 1934-02-20 | 1934-02-20 | Improvements in and relating to thermionic indicating or recording apparatus for intermittent impulses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB433638A true GB433638A (en) | 1935-08-19 |
Family
ID=9798653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB557334A Expired GB433638A (en) | 1934-02-20 | 1934-02-20 | Improvements in and relating to thermionic indicating or recording apparatus for intermittent impulses |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB433638A (en) |
-
1934
- 1934-02-20 GB GB557334A patent/GB433638A/en not_active Expired
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