GB148759A - Improvements in sound producers and receivers - Google Patents
Improvements in sound producers and receiversInfo
- Publication number
- GB148759A GB148759A GB20362/20A GB2036220A GB148759A GB 148759 A GB148759 A GB 148759A GB 20362/20 A GB20362/20 A GB 20362/20A GB 2036220 A GB2036220 A GB 2036220A GB 148759 A GB148759 A GB 148759A
- Authority
- GB
- United Kingdom
- Prior art keywords
- chamber
- diaphragm
- sound
- frequencies
- hull
- 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
- 230000011664 signaling Effects 0.000 abstract 2
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 238000013016 damping Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
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
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 Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Transducers For Ultrasonic Waves (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
- Headphones And Earphones (AREA)
Abstract
148,759. Signal Ges. July 31, 1919, [Convention date]. Addition to 147,939. Subaqueous audible signals.-In apparatus for producing and receiving sounds, particularly in subaqueous signalling, in which the sound energy is transferred between a diaphragm and the sound producer or receiver proper through a flat chamber, as described in the parent Specification, the diaphragm or other vibrating member and the chamber are each tuned to the same pitch. The chamber and its sound-transmitting opening may be variable in size. Fig. 1 shows the chamber 4 closed on one side by a diaphragm 1 and having on the opposite side a diaphragm or plate 3 with an orifice 5 communicating with a tube 6 leading the sound to or from the sound detector or producer proper, not shown. The device may be applied to an opening in the hull of a ship with the diaphragm 1 exposed to the water, or a liquid filled chamber may be provided within the hull, the ship's shell forming one side of the chamber, and the device may be applied to or placed within this chamber. The damping and coupling of the device give resonance to two frequencies as shown in Fig. 2, in which abscissµ represent frequencies, and ordinates loudness, and the signalling frequency used is preferably that represented by a point n corresponding with the shallow depression s between the resonance frequencies.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE148428X | 1917-11-05 | ||
| DE149324X | 1919-08-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB148759A true GB148759A (en) | 1921-10-10 |
Family
ID=25752314
Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB19994/20A Expired GB147939A (en) | 1917-11-05 | 1920-07-09 | Improvements in submarine sound transmitting and receiving apparatus |
| GB20375/20A Expired GB148428A (en) | 1917-11-05 | 1920-07-10 | Improvements in subaqueous sound producers and receivers |
| GB20362/20A Expired GB148759A (en) | 1917-11-05 | 1920-07-10 | Improvements in sound producers and receivers |
| GB20363/20A Expired GB149324A (en) | 1917-11-05 | 1920-07-10 | Improvements in sound producing or receiving devices |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB19994/20A Expired GB147939A (en) | 1917-11-05 | 1920-07-09 | Improvements in submarine sound transmitting and receiving apparatus |
| GB20375/20A Expired GB148428A (en) | 1917-11-05 | 1920-07-10 | Improvements in subaqueous sound producers and receivers |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB20363/20A Expired GB149324A (en) | 1917-11-05 | 1920-07-10 | Improvements in sound producing or receiving devices |
Country Status (1)
| Country | Link |
|---|---|
| GB (4) | GB147939A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3346240A1 (en) * | 1982-12-27 | 1984-06-28 | The Cornelius Co., Anoka, Minn. | METHOD AND DEVICE FOR DISPENSING COLD DRINK |
| GB8903000D0 (en) * | 1989-02-10 | 1989-03-30 | Rolls Royce Plc | A blade tip clearance control arrangement for a gas turbine engine |
-
1920
- 1920-07-09 GB GB19994/20A patent/GB147939A/en not_active Expired
- 1920-07-10 GB GB20375/20A patent/GB148428A/en not_active Expired
- 1920-07-10 GB GB20362/20A patent/GB148759A/en not_active Expired
- 1920-07-10 GB GB20363/20A patent/GB149324A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB147939A (en) | 1921-09-22 |
| GB148428A (en) | 1921-10-10 |
| GB149324A (en) | 1921-10-06 |
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