GB190716472A - Improved Method of and Appliances for Receiving Submarine Sound Signals. - Google Patents
Improved Method of and Appliances for Receiving Submarine Sound Signals.Info
- Publication number
- GB190716472A GB190716472A GB190716472DA GB190716472A GB 190716472 A GB190716472 A GB 190716472A GB 190716472D A GB190716472D A GB 190716472DA GB 190716472 A GB190716472 A GB 190716472A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ammeter
- circuit
- switch
- telephone
- sounds
- 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
Landscapes
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Abstract
16,472. Gardner, J. July 18. Sounds, locating direction of.-In apparatus for finding the direction of a sound signal at sea in which a microphone transmitter is placed at each side of the vessel and the intensities of the two sounds are compared, an ammeter is provided to compare the states of the two transmitting circuits. The ammeter is in series with a telephone and is placed alternately in series with two circuits containing a common battery and one of the microphone transmitters. In Fig. 2 one pole of the battery A is shown connected by wires B, C to the transmitters, which are also connected by wires B', C' to a switch D. This switch puts the receivers in circuit with the ammeter F and telephone G by means of the springs E, E<1>. As the current flows in different directions for the different positions of the switch D, the ammeter, the zero of which is at the centre of the scale, indicates which receiver is in circuit as well as the current in the circuit. In modifications, the position of the switch handle may show which receiver is in circuit, or this may be indicated by a lamp. The telephone may be replaced by a magneto-electric relay device to operate various signals. Specification No. 11,021, A.D. 1906, [Abridgment Class Electric telegraphs &c.], is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB190716472T | 1907-07-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB190716472A true GB190716472A (en) | 1908-04-23 |
Family
ID=32435432
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB190716472D Expired GB190716472A (en) | 1907-07-18 | 1907-07-18 | Improved Method of and Appliances for Receiving Submarine Sound Signals. |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB190716472A (en) |
-
1907
- 1907-07-18 GB GB190716472D patent/GB190716472A/en not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB190716472A (en) | Improved Method of and Appliances for Receiving Submarine Sound Signals. | |
US1547873A (en) | Signaling system | |
US978695A (en) | Signaling apparatus. | |
US594979A (en) | Telephonic selective signaling | |
US252641A (en) | Compound telephone | |
US361498A (en) | Method of and apparatus for signaling through submarine cables | |
US377879A (en) | Telegraphy | |
US526609A (en) | Submarine signaling | |
US370132A (en) | Thomas a | |
US937399A (en) | Four-party telephone-line. | |
US221406A (en) | Improvement in apparatus for operating speaking-telephones | |
GB191514474A (en) | Improvements in Submarine Signal Sound Receiving Apparatus. | |
US1018940A (en) | Electrical communicating apparatus. | |
US287111A (en) | drawbauah | |
US202495A (en) | Improvement in telephone call-signal apparatus | |
US754224A (en) | Telephone repeater and system. | |
US818145A (en) | Telegraph system. | |
GB190520371A (en) | Improved Apparatus for Sound Transmission by Means of Electrically Produced Light and Heat Rays. | |
US1672933A (en) | Lineman's test set | |
US975933A (en) | Telephone-repeater. | |
US481878A (en) | System of telephony | |
US683952A (en) | Telephone-transformer. | |
US535289A (en) | Telephony | |
US347374A (en) | Telephonic apparatus | |
GB190623385A (en) | Improvements in Telegraphy. |