AT52805B - Electric signaling systems, in particular for fire and burglar alarm devices. - Google Patents

Electric signaling systems, in particular for fire and burglar alarm devices.

Info

Publication number
AT52805B
AT52805B AT52805DA AT52805B AT 52805 B AT52805 B AT 52805B AT 52805D A AT52805D A AT 52805DA AT 52805 B AT52805 B AT 52805B
Authority
AT
Austria
Prior art keywords
fire
alarm devices
burglar alarm
signaling systems
electric signaling
Prior art date
Application number
Other languages
German (de)
Inventor
John Chisholm Francis
Original Assignee
John Chisholm Francis
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by John Chisholm Francis filed Critical John Chisholm Francis
Application granted granted Critical
Publication of AT52805B publication Critical patent/AT52805B/en

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  • Alarm Systems (AREA)

Description

  

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 Weise bewirken. An Stelle der von Hand zu betätigenden Schalter   16   können selbsttätige Schalter, wie z. B.   Thermostate,   benutzt werden. In den Fällen, wo das System gemäss der Erfindung bei Feueralarm-oder Einbruchssystemen oder ähnlichen Alarmvorrichtungen Verwendung finden soll, werden die Drähte 4 und 5 durch die zu schützenden Räume gezogen, so dass von irgend einem der Räume aus die Signale   übermittelt   werden. 
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1.

   Mit Ruhestrom betriebene Signalvorrichtung mit sowohl in der Zentrale als auch in der Unterstation geerdeter Doppelleitung, dadurch gekennzeichnet, dass bei einer durch Leitungbruch, Kurzschluss oder Erdschluss verusachten Störung in dem mit dem geerdeten Pol der Stromquelle verbundenen Zweige der Doppelleitung der andere Zweig, der im normalen Zustande der Leitung an den geerdeten Pol angeschlossen ist, selbsttätig an den nichtgeerdeten Pol geschaltet wird, wodurch der intakt geblieben Zweig beiderseits geerdet ist.



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 Effect wise. Instead of the manually operated switch 16, automatic switches such. B. thermostats can be used. In cases where the system according to the invention is to be used in fire alarm or intrusion systems or similar alarm devices, the wires 4 and 5 are pulled through the rooms to be protected so that the signals are transmitted from any of the rooms.
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1.

   Signaling device operated with quiescent current with a double line grounded both in the control center and in the substation, characterized in that in the event of a fault caused by a line break, short circuit or ground fault in the branch of the double line connected to the earthed pole of the power source, the other branch, which is normally used State of the line is connected to the grounded pole, is automatically switched to the non-grounded pole, whereby the branch that has remained intact is grounded on both sides.

Claims (1)

2. Signalvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass in jeden Zweig der Doppelleitung je eine Übertragungsvorrichtung eingeschaltet ist urd ausserdem zwei Störungsanzeiger vorgesehen sind, von denen der eine an die Fernleitung, der andere an die Vorrichtung angeschlossen ist, die bei Störungen die Polumschaltung des einen Zweiges bewirkt, so dass aus EMI4.2 2. Signal device according to claim 1, characterized in that a transmission device is switched on in each branch of the double line urd also two fault indicators are provided, one of which is connected to the long-distance line, the other to the device, which switches the pole in the event of a fault causes a branch so that out EMI4.2
AT52805D 1910-07-07 1910-07-07 Electric signaling systems, in particular for fire and burglar alarm devices. AT52805B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT52805T 1910-07-07

Publications (1)

Publication Number Publication Date
AT52805B true AT52805B (en) 1912-03-26

Family

ID=3574018

Family Applications (1)

Application Number Title Priority Date Filing Date
AT52805D AT52805B (en) 1910-07-07 1910-07-07 Electric signaling systems, in particular for fire and burglar alarm devices.

Country Status (1)

Country Link
AT (1) AT52805B (en)

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