DE90558C - - Google Patents
Info
- Publication number
- DE90558C DE90558C DENDAT90558D DE90558DA DE90558C DE 90558 C DE90558 C DE 90558C DE NDAT90558 D DENDAT90558 D DE NDAT90558D DE 90558D A DE90558D A DE 90558DA DE 90558 C DE90558 C DE 90558C
- Authority
- DE
- Germany
- Prior art keywords
- armature
- lever
- telephone
- record
- current
- 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
- 230000011664 signaling Effects 0.000 claims 1
- 238000004804 winding Methods 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 9
- 239000012528 membrane Substances 0.000 description 6
- 229910052742 iron Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000012212 insulator Substances 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)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE90558C true DE90558C (OSRAM) |
Family
ID=362263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT90558D Active DE90558C (OSRAM) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE90558C (OSRAM) |
-
0
- DE DENDAT90558D patent/DE90558C/de active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2491902A (en) | Batteryless impulse transmitter | |
| US2319937A (en) | Switching contact | |
| US1942811A (en) | Single stroke gong | |
| US1035577A (en) | Telephone-receiver. | |
| US510003A (en) | Telegraphy | |
| US1749015A (en) | Meter | |
| US226485A (en) | Jesse h | |
| US372404A (en) | deprez | |
| DE28861C (de) | Telephon | |
| US1795439A (en) | Magnetic device | |
| US1815194A (en) | Telephone receiver | |
| US2547537A (en) | Telephone ringer | |
| US128894A (en) | Inprovement in telegraph apparatus | |
| US307290A (en) | Ezba t | |
| US234772A (en) | haskins | |
| DE28930C (de) | Signalvorrichtung für Telephone mit Hufeisenmagnet und für Haustelegraphen | |
| DE40153C (de) | Neuerungen an Telephonen | |
| DE174786C (OSRAM) | ||
| US950004A (en) | Railway telephone signaling apparatus. | |
| DE85395C (OSRAM) | ||
| DE10021C (de) | Neuerungen an Telephonen | |
| DE57866C (de) | Abänderung an dem durch Patent Nr. 45459 geschützten Telegraphen-Empfänger | |
| DE96332C (OSRAM) | ||
| US560403A (en) | Telephone-receiver | |
| DE27773A (de) | Neuerungen an telephonischen Ap-. paraten |