GB277052A - Improvements in or relating to a device for converting electric oscillations into mechanical vibrations - Google Patents
Improvements in or relating to a device for converting electric oscillations into mechanical vibrationsInfo
- Publication number
- GB277052A GB277052A GB1198626A GB1198626A GB277052A GB 277052 A GB277052 A GB 277052A GB 1198626 A GB1198626 A GB 1198626A GB 1198626 A GB1198626 A GB 1198626A GB 277052 A GB277052 A GB 277052A
- Authority
- GB
- United Kingdom
- Prior art keywords
- yoke
- magnets
- poles
- shoes
- segments
- 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
- H04R11/00—Transducers of moving-armature or moving-core type
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Electromagnets (AREA)
Abstract
277,052. Wade, H., (Naamlooze Vennoots. chap Philips' Gloeilampenfabrieken). May 7, 1926. Magnetic instruments. -A device for converting electrical oscillations into mechanical vibrations, more particularly for use in loud-speakers, comprises a ferromagnetic element movably provided within a permanent magnetic field and polarized by a surrounding immovable winding or windings, the element being adapted to move alongside the magnet pole-shoes so that the width of the air-gaps remains unvaried. Fig. 1 shews a construction employing an H-shaped armature having its ends located between the unlike poles of two horseshoe magnets 1, 2, the neutral points of which are connected by a magnetic yoke 3. A stationary coil 7 surrounds the yoke 6 connecting the legs 4, 5 of the armature, which is guided rectilinearly by bifurcated rods 8 passing through guides 9. One of the rods 8 carries at its end a cone 10. In the modified construction, Fig. 5, a double T-shaped armature 4, 5, 6 is rotatably mounted on a shaft 11, the yoke 6 being surrounded by two stationary coils 7. The pole-shoes of the magnets 1, 2, which have their poles of like nature oppositely disposed on a magnetically conducting yoke 3, are turned out concentrically to the shaft 11 so as to leave only a very narrow air gap between the poles and segments 4, 5. The neutral points of the magnets are connected at 13. The degree of stability can be controlled, in both constructions, by regulating the iron section of the. yoke 6 relatively to that of the segments 4, 5.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE340882D BE340882A (en) | 1926-04-10 | ||
GB1198626A GB277052A (en) | 1926-05-07 | 1926-05-07 | Improvements in or relating to a device for converting electric oscillations into mechanical vibrations |
GB13383/26A GB278040A (en) | 1926-04-10 | 1926-05-26 | Improvements in or relating to a device for converting electric oscillations into acoustic vibrations, such as a loudspeaker |
FR632188D FR632188A (en) | 1926-04-10 | 1927-04-05 | Device designed to transform electrical oscillations and mechanical vibrations |
US181650A US1866565A (en) | 1926-04-10 | 1927-04-07 | Device for converting electric oscillations into mechanical vibrations |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1198626A GB277052A (en) | 1926-05-07 | 1926-05-07 | Improvements in or relating to a device for converting electric oscillations into mechanical vibrations |
Publications (1)
Publication Number | Publication Date |
---|---|
GB277052A true GB277052A (en) | 1927-09-07 |
Family
ID=9996314
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1198626A Expired GB277052A (en) | 1926-04-10 | 1926-05-07 | Improvements in or relating to a device for converting electric oscillations into mechanical vibrations |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB277052A (en) |
-
1926
- 1926-05-07 GB GB1198626A patent/GB277052A/en not_active Expired
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