AT227344B - Filter belt transport device for systems for measuring the radioactivity of aerosols - Google Patents

Filter belt transport device for systems for measuring the radioactivity of aerosols

Info

Publication number
AT227344B
AT227344B AT866661A AT866661A AT227344B AT 227344 B AT227344 B AT 227344B AT 866661 A AT866661 A AT 866661A AT 866661 A AT866661 A AT 866661A AT 227344 B AT227344 B AT 227344B
Authority
AT
Austria
Prior art keywords
filter belt
transport device
radioactivity
aerosols
systems
Prior art date
Application number
AT866661A
Other languages
German (de)
Inventor
Meinrad Althuser
Original Assignee
Landis & Gyr Ag
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 Landis & Gyr Ag filed Critical Landis & Gyr Ag
Application granted granted Critical
Publication of AT227344B publication Critical patent/AT227344B/en

Links

Landscapes

  • Measurement Of Radiation (AREA)
  • Measuring Fluid Pressure (AREA)

Description

  

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  Filterband-Transporteinrichtung für Anlagen zur
Messung der Radioaktivität von Aerosolen 
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 dass die periodisch erfolgende Verschiebung des Andrückrahmens 20 nur einen kleinen Bruchteil der Breite der Ansaugöffnung 5 beträgt. 



   Der Andrückrahmen 20 kann auch, nachdem er eine kurze Strecke durch das Filterband 11 mitgenommen wurde, von diesem zwangsweise abgehoben, in seine Ausgangslage   zurückgeführt   und dann wieder freigegeben werden. 



   Der Andrückrahmen 20 kann ferner zusätzlich mit einem aus der Apparatur herausgeführten Ansaugschlauch verbunden sein, wodurch weitgehend verhindert wird, dass die angesaugte Luft eine Verunreinigung und eventuell Verseuchung der ganzen Apparatur bewirkt. 



   PATENTANSPRÜCHE : 
1. Filterband-Transporteinrichtung für Anlagen zur Messung der Radioaktivität von Aerosolen, welche ein an einer Luftansaugöffnung mit konstanter Geschwindigkeit vorbeibewegtes Filterband um zwei Strahlungsdetektoren enthalten, deren einer über der Ansaugöffnung und der andere von dieser weit entfernt angeordnet ist, dadurch gekennzeichnet, dass die Fortbewegung des Filterbandes (11) mittels eines in an sich bekannter Weise auf Trommeln (2,3) gelagerten, endlosen, flexiblen Transportbandes (1) erfolgt, das für den Durchtritt der angesaugten Luft mit einer Perforierung versehen ist, und dass sowohl ei- 
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  Filter belt transport device for systems for
Measurement of the radioactivity of aerosols
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 that the periodically occurring displacement of the pressure frame 20 is only a small fraction of the width of the suction opening 5.



   The pressure frame 20, after it has been taken along a short distance through the filter belt 11, can be forcibly lifted off the latter, returned to its starting position and then released again.



   The pressure frame 20 can also be connected to a suction hose led out of the apparatus, which largely prevents the sucked in air from contaminating and possibly contaminating the entire apparatus.



   PATENT CLAIMS:
1. Filter belt transport device for systems for measuring the radioactivity of aerosols, which contain a filter belt moved past an air intake opening at constant speed around two radiation detectors, one of which is arranged above the intake opening and the other is located far away from it, characterized in that the locomotion of the filter belt (11) by means of an endless, flexible conveyor belt (1) which is mounted in a known manner on drums (2,3) and is provided with a perforation for the passage of the sucked air, and that both a
 EMI3.1

Claims (1)

2. Filterband-Transporteinrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Filterbandrollen (10,14) am freien Ende eines um ein ortsfestes Lager (12) schwenkbaren Hebels (13) drehbar gelagert und durch Eigengewicht oder/und Federkraft (15) gegen das perforierte Transportband (1) gedrückt sind. 2. Filter belt transport device according to claim 1, characterized in that the filter belt rollers (10, 14) at the free end of a lever (13) pivotable about a stationary bearing (12) rotatably mounted and counteracted by its own weight and / or spring force (15) perforated conveyor belt (1) are pressed. 3. Filterband-Transporteinrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass über der Ansaugöffnung (5) ein dieser angepasster, dünner und in Längsrichtung des Filterbandes (11) beweglich gelagerter Andrückrahmen (20) angeordnet ist, welcher sowohl das Filterband (11) als auch das perforierte Transportband (1) gegen die Ansaugöffnung (5) gedrückt hält. 3. Filter belt transport device according to claim 1 or 2, characterized in that a pressure frame (20) which is adapted to this, thin and movably mounted in the longitudinal direction of the filter belt (11) is arranged above the suction opening (5), which pressure frame (20) is both the filter belt (11) as well as the perforated conveyor belt (1) pressed against the suction opening (5).
AT866661A 1961-10-24 1961-11-16 Filter belt transport device for systems for measuring the radioactivity of aerosols AT227344B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH227344X 1961-10-24

Publications (1)

Publication Number Publication Date
AT227344B true AT227344B (en) 1963-05-10

Family

ID=4455006

Family Applications (1)

Application Number Title Priority Date Filing Date
AT866661A AT227344B (en) 1961-10-24 1961-11-16 Filter belt transport device for systems for measuring the radioactivity of aerosols

Country Status (1)

Country Link
AT (1) AT227344B (en)

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