GB265958A - Improvements relating to electric sound-emitting devices, or loud-speakers - Google Patents
Improvements relating to electric sound-emitting devices, or loud-speakersInfo
- Publication number
- GB265958A GB265958A GB3344/27A GB334427A GB265958A GB 265958 A GB265958 A GB 265958A GB 3344/27 A GB3344/27 A GB 3344/27A GB 334427 A GB334427 A GB 334427A GB 265958 A GB265958 A GB 265958A
- Authority
- GB
- United Kingdom
- Prior art keywords
- spikes
- voltage
- loud
- presspahn
- insulating material
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R23/00—Transducers other than those covered by groups H04R9/00 - H04R21/00
- H04R23/004—Transducers other than those covered by groups H04R9/00 - H04R21/00 using ionised gas
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
- Discharge Lamps And Accessories Thereof (AREA)
Abstract
265,958. International General Electric Co., Inc., (Assignees of Allgemeine Elektricitõts-Ges.). Feb. 13, 1926, [Convention date]. Addition to 264,811. Drawings to Specification. Receivers utilizing point discharge effects. - In order to avoid the production of an arc discharge in an electric sound emitting device or loud-speaker of the kind described in the parent Specification in which a fluctuating voltage is superimposed on a direct current voltage which maintains an electrostatic point discharge from a non-vibratory electrode placed close to a counter electrode, a dielectric possessing a high ohmic resistance, such as mica or preferably presspahn or presspahn and air, is provided between the electrodes. According to an alternative, the fundarr.ental voltage is a high frequency alternating voltage which produces air vibrations outside the range of audible frequencies. According to further features of the invention, the electrodes used preferably consist of two metal discs of which one is studded with a large number of spikes of a predetermined length and separated a given distance from one another. The spikes are preferably partly embedded in insulating material and this is effected, according to one construction, by using a disc made of insulating material in which the electrically connected spikes are mounted.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE264811X | 1926-01-22 | ||
DE265958X | 1926-02-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB265958A true GB265958A (en) | 1928-01-05 |
Family
ID=25771050
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB51/27A Expired GB264811A (en) | 1926-01-22 | 1927-01-01 | Improvements relating to electric sound-emitting devices or loud speakers |
GB3344/27A Expired GB265958A (en) | 1926-01-22 | 1927-02-05 | Improvements relating to electric sound-emitting devices, or loud-speakers |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB51/27A Expired GB264811A (en) | 1926-01-22 | 1927-01-01 | Improvements relating to electric sound-emitting devices or loud speakers |
Country Status (1)
Country | Link |
---|---|
GB (2) | GB264811A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2506551A1 (en) * | 1981-05-21 | 1982-11-26 | Bondar Henri | METHOD AND DEVICE FOR TRANSFORMING A PERIODIC BF ELECTRICAL VOLTAGE INTO ACOUSTIC WAVES OR REVERSE |
GB2403372A (en) * | 2003-06-21 | 2004-12-29 | Adam Richard Maurice Chambers | Corona discharge loudspeaker |
-
1927
- 1927-01-01 GB GB51/27A patent/GB264811A/en not_active Expired
- 1927-02-05 GB GB3344/27A patent/GB265958A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2506551A1 (en) * | 1981-05-21 | 1982-11-26 | Bondar Henri | METHOD AND DEVICE FOR TRANSFORMING A PERIODIC BF ELECTRICAL VOLTAGE INTO ACOUSTIC WAVES OR REVERSE |
EP0065911A1 (en) * | 1981-05-21 | 1982-12-01 | Henri Bondar | Ionic electro-acoustic transducer |
US4460809A (en) * | 1981-05-21 | 1984-07-17 | Bondar Henri | Process and device for converting a periodic LF electric voltage into sound waves |
GB2403372A (en) * | 2003-06-21 | 2004-12-29 | Adam Richard Maurice Chambers | Corona discharge loudspeaker |
GB2403372B (en) * | 2003-06-21 | 2007-03-21 | Adam Richard Maurice Chambers | Loudspeaker |
Also Published As
Publication number | Publication date |
---|---|
GB264811A (en) | 1927-12-29 |
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