AT49741B - Device for displaying the occurrence of mine gases by means of selenium cells and weather lamps. - Google Patents
Device for displaying the occurrence of mine gases by means of selenium cells and weather lamps.Info
- Publication number
- AT49741B AT49741B AT49741DA AT49741B AT 49741 B AT49741 B AT 49741B AT 49741D A AT49741D A AT 49741DA AT 49741 B AT49741 B AT 49741B
- Authority
- AT
- Austria
- Prior art keywords
- occurrence
- displaying
- selenium cells
- weather
- mine gases
- Prior art date
Links
Landscapes
- Audible And Visible Signals (AREA)
Description
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wird die Leitfähigkeit der Selenzelle und der durch sie gehende Strom so gross, dass der Anker n ; mehr angezogen wird und sich an den Kontaktstift g legt (Fig. 2), bei einer Verminderung der Lichtstärke durch stärkeren Gasgehalt der Luft wird dagegen die Leitfähigkeit der Selenzelle und der durch sie fliessende Strom so gering, dass der Relaisanker m von der Feder p an den Kontaktstift h bewegt wird (Fig. 3). In beiden Fällen des verschiedenen Gasgehaltes der Luft wird also der Signalstromkreis geschlossen und die elektrische Klingel o oder dergl. in Tätigkeit gesetzt.
Die Mittellage und die Kontaktlagen des Relaisankers m kann man auch noch auf andere Art und Weise wie oben angegeben erreichen, so z. B. dadurch, dass der durch die Selenzelle gehende Strom einen relaisartigen Umschalter durchfliesst, welcher bei normal brennender Flamme das Relais b stroml08 macht ; bei einer Erhöhung der Lichtstärke diesem aber den Strom in der einen, bei Verminderung der Lichtstärke aber in entgegengesetzter Richtung zuführt, so dass
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oder dem anderen Kontaktstift, je nach dem Gasgehalt der Luft, in Berührung kommt. Anstatt eines hiezu erforderlichen polarisierten Relais b kann auch ein Drehspulenrelais oder eine andere geeignete Vorrichtung Verwendung finden.
Soll das Anzeigen von schwachem oder stärkerem Gasgehalt der Luft durch verschiedenartige Signale, durch Anwendung von zwei verschiedenen elektrischen Klingeln oder dergl., geschellen, wodurch gleichzeitig auf die Gröl3e der Gefahr aufmerksam gemacht wird. so werden
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the conductivity of the selenium cell and the current passing through it becomes so great that the anchor n; is more attracted and lies on the contact pin g (Fig. 2), with a reduction in light intensity due to a higher gas content in the air, the conductivity of the selenium cell and the current flowing through it are so low that the relay armature m from the spring p the contact pin h is moved (Fig. 3). In both cases of the different gas content in the air, the signal circuit is closed and the electric bell or the like is activated.
The central position and the contact positions of the relay armature m can also be achieved in other ways as indicated above, such. B. in that the current passing through the selenium cell flows through a relay-like changeover switch, which makes relay b stroml08 when the flame is burning normally; with an increase in light intensity it supplies the current in one direction, with a decrease in light intensity in the opposite direction, so that
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or the other contact pin, depending on the gas content of the air. Instead of a polarized relay b required for this, a moving coil relay or some other suitable device can also be used.
Should the display of low or high gas content in the air be ringing by different signals, by using two different electric bells or the like, whereby at the same time attention is drawn to the magnitude of the danger. be like that
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Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT49741T | 1910-08-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
AT49741B true AT49741B (en) | 1911-09-11 |
Family
ID=3570500
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT49741D AT49741B (en) | 1910-08-13 | 1910-08-13 | Device for displaying the occurrence of mine gases by means of selenium cells and weather lamps. |
Country Status (1)
Country | Link |
---|---|
AT (1) | AT49741B (en) |
-
1910
- 1910-08-13 AT AT49741D patent/AT49741B/en active
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