GB123145A - Improvements in or relating to Means for Amplifying Small Movements, especially applicable for Producing Sounds. - Google Patents
Improvements in or relating to Means for Amplifying Small Movements, especially applicable for Producing Sounds.Info
- Publication number
- GB123145A GB123145A GB243318A GB243318A GB123145A GB 123145 A GB123145 A GB 123145A GB 243318 A GB243318 A GB 243318A GB 243318 A GB243318 A GB 243318A GB 123145 A GB123145 A GB 123145A
- Authority
- GB
- United Kingdom
- Prior art keywords
- diaphragm
- diaphragms
- edge
- small movements
- 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
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/08—Non-electric sound-amplifying devices, e.g. non-electric megaphones
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Telephone Set Structure (AREA)
Abstract
123,145. Baynes, F. W., and Creed & Co. Feb. 11, 1918. Telephones.-In apparatus for amplifying small movements, such as the vibratory movements of telephone receiver diaphragms, the primary movement is applied to the edge, and in the plane, of a curved or bent diaphragm, resulting in an amplified movement of the diaphragm in a direction perpendicular to its plane. As shown in Fig. 16, the ordinary receiver diaphragm o is connected to the edge of a pair of bowed diaphragms b the opposite edges of which are fixed to a casing a. The ear-pieces may communicate with an aperture h between the diaphragms or with the space surrounding the diaphragms. Alternatively, the telephone magnet may act on a spring lever connected at one end to the edge of a curved diaphragm. The free edges of the diaphragm may slide over surfaces faced with rubber to prevent escape of the sound waves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB243318A GB123145A (en) | 1918-02-11 | 1918-02-11 | Improvements in or relating to Means for Amplifying Small Movements, especially applicable for Producing Sounds. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB243318A GB123145A (en) | 1918-02-11 | 1918-02-11 | Improvements in or relating to Means for Amplifying Small Movements, especially applicable for Producing Sounds. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB123145A true GB123145A (en) | 1919-02-11 |
Family
ID=32669950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB243318A Expired GB123145A (en) | 1918-02-11 | 1918-02-11 | Improvements in or relating to Means for Amplifying Small Movements, especially applicable for Producing Sounds. |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB123145A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0005409A2 (en) * | 1978-05-08 | 1979-11-14 | ETAT-FRANCAIS représenté par le Délégué Général pour l' Armement | Piezoelectric transducers with mechanical amplification for very low frequencies and acoustic antennas |
-
1918
- 1918-02-11 GB GB243318A patent/GB123145A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0005409A2 (en) * | 1978-05-08 | 1979-11-14 | ETAT-FRANCAIS représenté par le Délégué Général pour l' Armement | Piezoelectric transducers with mechanical amplification for very low frequencies and acoustic antennas |
| EP0005409A3 (en) * | 1978-05-08 | 1979-11-28 | Etat-Francais Represente Par Le Delegue General Pour L'armement | Piezoelectric transducers with mechanical amplification for very low frequencies and acoustic antennas |
| FR2425785A1 (en) * | 1978-05-08 | 1979-12-07 | France Etat | PIEZO-ELECTRIC TRANSDUCERS WITH MECHANICAL AMPLIFICATION FOR VERY LOW FREQUENCIES AND ACOUSTIC ANTENNAS |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2138036A (en) | Compressional wave sender or receiver | |
| SE8303520L (en) | Electroacoustic transducer with large impact | |
| GB536969A (en) | Improvements in voice translating microphones | |
| GB123145A (en) | Improvements in or relating to Means for Amplifying Small Movements, especially applicable for Producing Sounds. | |
| US1928669A (en) | Transmitter | |
| US2144458A (en) | Bone conduction audiphone | |
| US1430258A (en) | Telephone transmitter | |
| US1507081A (en) | Telephone transmitter | |
| US1770490A (en) | Acoustics | |
| GB266555A (en) | Improvements in or relating to sound reproducing and transmitting apparatus | |
| SU432693A1 (en) | MICROPHONE ELECTRODIN. LIGHT | |
| US1536118A (en) | Sound reproducer | |
| US1564968A (en) | Sound-reproducing device | |
| US1313751A (en) | smith | |
| GB332722A (en) | Improvements relating to sound reproducing mechanism | |
| US1545547A (en) | Relay | |
| GB567955A (en) | Improvements in and relating to moving coil loudspeakers and microphones | |
| US1379287A (en) | said press | |
| US1372018A (en) | Sound-box | |
| US1356190A (en) | Telephonic transmitter | |
| US235707A (en) | Telephone-transmitter | |
| GB120409A (en) | Improvements in or relating to Sound Reproducing Apparatus. | |
| US1112167A (en) | Telephone-transmitter. | |
| GB259699A (en) | Improvements in loud speaking telephones | |
| GB112444A (en) | Improvements in or relating to Vibration Transferring Means. |