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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
Application number
Other languages
German (de)
Inventor
Heinrich Freise
Original Assignee
Heinrich Freise
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 Heinrich Freise filed Critical Heinrich Freise
Application granted granted Critical
Publication of AT49741B publication Critical patent/AT49741B/en

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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 
 EMI2.2 
 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)

PATENT-ANSPRUCH : Vorrichtung zum Anzeigen des Auftretens von Grubengasen mittels Selenzelle und Wetter- EMI2.4 bei Erhöhung der Lichtstärke einer Lampenflamme (d) der eine Kontakt (z. B. g). bei deren Verminderung der andere (z. B. h), bei normal brennender Flamme aber kein Kontakt geschlossen wird. PATENT CLAIM: Device for displaying the occurrence of mine gases by means of selenium cells and weather EMI2.4 when the light intensity of a lamp flame (d) increases, one contact (e.g. g). if this is reduced, the other (e.g. h) is closed, but no contact is made if the flame is burning normally.
AT49741D 1910-08-13 1910-08-13 Device for displaying the occurrence of mine gases by means of selenium cells and weather lamps. AT49741B (en)

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)

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