DE169903C - - Google Patents
Info
- Publication number
- DE169903C DE169903C DENDAT169903D DE169903DA DE169903C DE 169903 C DE169903 C DE 169903C DE NDAT169903 D DENDAT169903 D DE NDAT169903D DE 169903D A DE169903D A DE 169903DA DE 169903 C DE169903 C DE 169903C
- Authority
- DE
- Germany
- Prior art keywords
- electromagnet
- tuning fork
- circuit
- bell
- armature
- 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.)
- Active
Links
- 230000005284 excitation Effects 0.000 claims description 5
- 230000000903 blocking effect Effects 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 claims 1
- 230000001960 triggered effect Effects 0.000 description 2
- 210000000056 organ Anatomy 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M19/00—Current supply arrangements for telephone systems
- H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
- H04M19/04—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone the ringing-current being generated at the substations
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Breakers (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE169903C true DE169903C (OSRAM) |
Family
ID=434988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT169903D Active DE169903C (OSRAM) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE169903C (OSRAM) |
-
0
- DE DENDAT169903D patent/DE169903C/de active Active
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