GB190925196A - Improvements in Signalling Systems. - Google Patents
Improvements in Signalling Systems.Info
- Publication number
- GB190925196A GB190925196A GB190925196DA GB190925196A GB 190925196 A GB190925196 A GB 190925196A GB 190925196D A GB190925196D A GB 190925196DA GB 190925196 A GB190925196 A GB 190925196A
- Authority
- GB
- United Kingdom
- Prior art keywords
- line
- circuit
- magnet
- bell circuit
- signalling systems
- 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
- H04Q—SELECTING
- H04Q5/00—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange
- H04Q5/18—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange with indirect connection, i.e. through subordinate switching centre
- H04Q5/22—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange with indirect connection, i.e. through subordinate switching centre the subordinate centre not permitting interconnection of subscribers connected thereto
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Alarm Systems (AREA)
- Selective Calling Equipment (AREA)
Abstract
25,196. Gill, E. R. Jan. 13, [Convention date]. Indicating ringing of bells to operators. - The operation of a circuit-closer 13 in a bell circuit at a distant station is indicated in a telephone 19 at the transmitting station through impulses transmitted in the line 10 from the induction coil 16, one winding of which is connected to the line, and the other in the bell circuit. The core of the coil also forms the operating-magnet for the bell circuit. The magnet may be connected in shunt with a resistance on a single line.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US190925196XA | 1909-01-13 | 1909-01-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB190925196A true GB190925196A (en) | 1910-05-19 |
Family
ID=32596453
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB190925196D Expired GB190925196A (en) | 1909-01-13 | 1909-11-02 | Improvements in Signalling Systems. |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB190925196A (en) |
-
1909
- 1909-11-02 GB GB190925196D patent/GB190925196A/en not_active Expired
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