GB344130A - Improvements in or relating to electrical translating devices such as loud speakers - Google Patents
Improvements in or relating to electrical translating devices such as loud speakersInfo
- Publication number
- GB344130A GB344130A GB72130A GB72130A GB344130A GB 344130 A GB344130 A GB 344130A GB 72130 A GB72130 A GB 72130A GB 72130 A GB72130 A GB 72130A GB 344130 A GB344130 A GB 344130A
- Authority
- GB
- United Kingdom
- Prior art keywords
- reed
- loud
- speakers
- translating devices
- pillar
- 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
Abstract
344,130. Loud-speakers. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and OLIVER, D. A., of General Electric Co., Wembley, Middlesex. Jan. 8, 1930, No. 721. [Class 40 (iv).] Electric translating devices such as loud-speakers having a vibratory device comprising two or more elastic reed-like members of different natural frequencies, have elastic couplings between the reed-like members of such mass and elasticity as to improve the uniformity of the response. The Figure shows a reed 1, forming or carrying an armature for an electromagnet 6, and secured to a pillar 2 on the frame of a loud-speaker unit. A stiffer reed 3 of hollowed-out section is secured also to the pillar 2 and at its outer end is connected by a yoke 4 to a transverse spring 5 connected to the end of the reed 1. A screw and spring as shown enable the air gap to be adjusted, and a rod 7 passing through a central opening in the reed 3 connects the reed 1 to a cone or diaphragm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB72130A GB344130A (en) | 1930-01-08 | 1930-01-08 | Improvements in or relating to electrical translating devices such as loud speakers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB72130A GB344130A (en) | 1930-01-08 | 1930-01-08 | Improvements in or relating to electrical translating devices such as loud speakers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB344130A true GB344130A (en) | 1931-03-05 |
Family
ID=9709355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB72130A Expired GB344130A (en) | 1930-01-08 | 1930-01-08 | Improvements in or relating to electrical translating devices such as loud speakers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB344130A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1096957B (en) * | 1959-03-02 | 1961-01-12 | Carl Ernst Eichhorn | Force and armature field arrangement to control magnetic stray fluxes in magnetic cantilever systems |
-
1930
- 1930-01-08 GB GB72130A patent/GB344130A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1096957B (en) * | 1959-03-02 | 1961-01-12 | Carl Ernst Eichhorn | Force and armature field arrangement to control magnetic stray fluxes in magnetic cantilever systems |
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