GB216092A - Improvements in and relating to telephones - Google Patents
Improvements in and relating to telephonesInfo
- Publication number
- GB216092A GB216092A GB31768/23A GB3176823A GB216092A GB 216092 A GB216092 A GB 216092A GB 31768/23 A GB31768/23 A GB 31768/23A GB 3176823 A GB3176823 A GB 3176823A GB 216092 A GB216092 A GB 216092A
- Authority
- GB
- United Kingdom
- Prior art keywords
- diaphragm
- magnet
- armature
- foil
- soldered
- 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
- 239000011888 foil Substances 0.000 abstract 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract 2
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 229910052759 nickel Inorganic materials 0.000 abstract 1
- 239000010956 nickel silver Substances 0.000 abstract 1
- 229910000679 solder Inorganic materials 0.000 abstract 1
- 238000004804 winding Methods 0.000 abstract 1
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
- H04R11/06—Telephone receivers
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
Abstract
216,092. Siemens & Halske Akt.-Ges. May 19, 1923, [Convention date]. Magnetic instruments; earpieces; diaphragms.-In a telephone receiver which can be inserted in the auricle of the ear, the diaphragm 4, Figs. 1 and 3, is composed of a metal foil having a high natural resiliency, such as phosphorbronze, German silver, nickel or the like, and of a thickness not exceeding 0.05 mm. A disc-like iron armature 6, about thirty times the thickness of the foil, is soldered to the diaphragm along its entire surface, and the diaphragm, while being strongly stretched radially, is soldered at its circumference to a carrier ring 5. A process for producing the diaphragm comprises stretching a sheet of foil 4<1> clamped in an annular holder 16, Fig. 3, by a hollow cylinder 17, while the armature 6 and the carrier ring 5 are attached on opposite sides of the sheet by solder. The carrier 5 is loosely inserted in the telephone casing, and held in position by the magnet 10 being forced towards it by a spring 14, a distance ring 7 being placed between the diaphragm and the magnet. The magnet is pot-shaped with its winding 11 placed in its interior. Its outer pole 12 lies close to the inner rod-like pole 13, so that the armature of the diaphragm has to bridge only a narrow gap.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE216092X | 1923-05-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB216092A true GB216092A (en) | 1924-10-23 |
Family
ID=5827413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB31768/23A Expired GB216092A (en) | 1923-05-19 | 1923-12-18 | Improvements in and relating to telephones |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB216092A (en) |
-
1923
- 1923-12-18 GB GB31768/23A patent/GB216092A/en not_active Expired
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