GB290859A - Improvements in electromechanically controlled switches and switching systems for use in automatic telephone exchanges and other remotely controlled systems - Google Patents
Improvements in electromechanically controlled switches and switching systems for use in automatic telephone exchanges and other remotely controlled systemsInfo
- Publication number
- GB290859A GB290859A GB1894727A GB1894727A GB290859A GB 290859 A GB290859 A GB 290859A GB 1894727 A GB1894727 A GB 1894727A GB 1894727 A GB1894727 A GB 1894727A GB 290859 A GB290859 A GB 290859A
- Authority
- GB
- United Kingdom
- Prior art keywords
- disc
- systems
- wiper
- shaft
- wiper shaft
- 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
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H67/00—Electrically-operated selector switches
- H01H67/02—Multi-position wiper switches
- H01H67/04—Multi-position wiper switches having wipers movable only in one direction for purpose of selection
- H01H67/06—Rotary switches, i.e. having angularly movable wipers
Landscapes
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
290,859. Aldendorff, F. Nov. 19, 1926. Divided application. Automatic e x c h a n g e selectors of stop-controHed type for use for example with the circuits described in Specification 289,296 are driven by individual electric motors or by a common power shaft. As showm in Figs, 6 and 7, the motor drives the wiper shaft after a certain amount of idle movement to enable it to get up speed and resistance is then automatically cut into the armature circuit. When the motor is started it first rotates the disc e clockwise against a weak spring p secured between the disc and the wiper shaft. After half a revolution, a projection g on the disc engages an arm o<1> on the wiper shaft. this engagement operating contact springs to remove a short circuit from resistances i, h in the armature circuit. In the switch shown in Fig. 1, the selector is driven through a pair of spring plates 8 embracing a flanged ring on the stopping disc. In a modification, the motor and wiper shafts are at right angles. As shown in Fig. 3 a winding 9<a> magnetizes a disc 7a on a common power shaft to cause it to drive an iron &c. ring on a flexible disc 12a on the wiper shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1894727A GB290859A (en) | 1926-11-19 | 1926-11-19 | Improvements in electromechanically controlled switches and switching systems for use in automatic telephone exchanges and other remotely controlled systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1894727A GB290859A (en) | 1926-11-19 | 1926-11-19 | Improvements in electromechanically controlled switches and switching systems for use in automatic telephone exchanges and other remotely controlled systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB290859A true GB290859A (en) | 1928-05-21 |
Family
ID=10121167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1894727A Expired GB290859A (en) | 1926-11-19 | 1926-11-19 | Improvements in electromechanically controlled switches and switching systems for use in automatic telephone exchanges and other remotely controlled systems |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB290859A (en) |
-
1926
- 1926-11-19 GB GB1894727A patent/GB290859A/en not_active Expired
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