AT153162B - Device for the detection of foreign gases or suspended matter in air. - Google Patents

Device for the detection of foreign gases or suspended matter in air.

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Publication number
AT153162B
AT153162B AT153162DA AT153162B AT 153162 B AT153162 B AT 153162B AT 153162D A AT153162D A AT 153162DA AT 153162 B AT153162 B AT 153162B
Authority
AT
Austria
Prior art keywords
air
piston rod
detection
suspended matter
foreign gases
Prior art date
Application number
Other languages
German (de)
Inventor
Otto Heinrich Dr Draeger
Original Assignee
Otto Heinrich Dr Draeger
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 Otto Heinrich Dr Draeger filed Critical Otto Heinrich Dr Draeger
Application granted granted Critical
Publication of AT153162B publication Critical patent/AT153162B/en

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Description

  

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  Vorrichtung zum Nachweis fremder Gase oder Schwebstoffe in Luft. 
 EMI1.1 




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  Device for the detection of foreign gases or suspended matter in air.
 EMI1.1

Claims (1)

PATENT-ANSPRÜCHE : 1. Vorrichtung zum Nachweis fremder Gase oder Schwebstoffe in Luft, bestehend aus einer von Hand betätigten doppeltwirkenden Pumpe, welche die zu untersuchende Luft in stetigem Strom durch oder über Auffang-oder Reaktionsmittel saugt, welche Mittel in einem Rohr untergebracht sind, das in Verbindung mit dem einen Ende einer hohlen Kolbenstange steht, dadurch gekennzeichnet, dass die Kolbenstange (29) mit einer in den Ringraum (31) zwischen Pumpenzylinder (25) und Kolbenstange (29) mündenden Luftdurchtrittsöffnung (30) versehen ist und einen Differentialkolben (26) trägt, dessen Fläche in an sich bekannter Weise etwa das Doppelte des Kolbenstangenquerschnittes ausmacht, während die Abdichtung zwischen Pumpenzylinder (25) und Differentialkolben (26) PATENT CLAIMS: 1. Device for the detection of foreign gases or suspended matter in air, consisting of a manually operated double-acting pump, which sucks the air to be examined in a steady stream through or over collecting or reaction means, which means are housed in a pipe that is connected to stands at one end of a hollow piston rod, characterized in that the piston rod (29) is provided with an air passage opening (30) opening into the annular space (31) between the pump cylinder (25) and the piston rod (29) and carries a differential piston (26), whose area, in a manner known per se, is about twice the cross section of the piston rod, while the seal between the pump cylinder (25) and the differential piston (26) in ebenfalls bekannter Weise durch Manschetten (27), die die Luft nur in einer Richtung an sich vorbeistreichen lassen, oder durch Ventile erfolgt. in a likewise known manner by means of cuffs (27), which allow the air to sweep past them in only one direction, or by means of valves. 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass zwischen dem das Auffang-oder Reaktionsmittel und dem die Flüssigkeit bindende Schicht aufnehmenden Behälter (e) und dem Hohlraum (d) der Kolbenstange (29) eine Drosseldüse (14) angeordnet ist. EMI2.1 2. Device according to claim 1, characterized in that a throttle nozzle (14) is arranged between the collecting or reactant and the container (e) receiving the liquid-binding layer and the cavity (d) of the piston rod (29). EMI2.1
AT153162D 1934-01-10 1934-05-25 Device for the detection of foreign gases or suspended matter in air. AT153162B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE153162X 1934-01-10

Publications (1)

Publication Number Publication Date
AT153162B true AT153162B (en) 1938-04-25

Family

ID=5675523

Family Applications (1)

Application Number Title Priority Date Filing Date
AT153162D AT153162B (en) 1934-01-10 1934-05-25 Device for the detection of foreign gases or suspended matter in air.

Country Status (1)

Country Link
AT (1) AT153162B (en)

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