AT118377B - Series connection lamp. - Google Patents

Series connection lamp.

Info

Publication number
AT118377B
AT118377B AT118377DA AT118377B AT 118377 B AT118377 B AT 118377B AT 118377D A AT118377D A AT 118377DA AT 118377 B AT118377 B AT 118377B
Authority
AT
Austria
Prior art keywords
series connection
lamp
connection lamp
cadmium oxide
lamps
Prior art date
Application number
Other languages
German (de)
Inventor
Johannes Antonius Maria Liempt
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Application granted granted Critical
Publication of AT118377B publication Critical patent/AT118377B/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/30Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
    • B05B1/3033Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head
    • B05B1/304Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve
    • B05B1/3046Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve the valve element, e.g. a needle, co-operating with a valve seat located downstream of the valve element and its actuating means, generally in the proximity of the outlet orifice

Landscapes

  • Resistance Heating (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



    Reihenschaltungslampe.   



   Die Erfindung betrifft eine elektrische Glühlampe, die in bekannter Weise mit einem parallel zum Glühdraht angebrachten Widerstand versehen ist, der bei der Betriebsspannung der Lampe keinen oder nahezu keinen Strom durchlässt, aber, falls der Glühdraht reisst, durch eine höhere Spannung leitend werden kann und auf diese Weise die   zwei Zuführungsd] ähte kurzschliesst.   Diese Lampen, kurzweg Reihenschaltungslampen genannt, werden zur   Strassen-oder Kanalbeleuehtung,   zu   I1luminationszwecken   und überhaupt dort verwendet, wo es Vorteile bietet, eine Anzahl von Lampen in Reihe zu schalten. 



  Erleidet eine dieser Lampen Schaden, indem z. B. der Glühdraht reisst, so stellt der Widerstand einen Kurzschluss her, der verhütet, dass die ganze   Lampenreihe   stromlos ist. 



   Die elektrische Glühlampe nach der Erfindung ist mit einem Widerstand versehen, der aus Kadmiumoxyd besteht, das in Pulverform in der Lampe untergebracht werden kann. 



   Das Kadmiumoxyd ist leicht in Pulverform zu bringen und sehr stabil. Es ist leicht erhältlich und behält seine guten Eigenschaften trotz der nachteiligen Einflüsse, die infolge des Aufkittens des Sockels auf den Glaskolben eintreten. Die Durchschlagspannung des Kadmiumoxyds ist von der Feinheit des Pulvers abhängig, u. zw. ist dieselbe um so höher, je feiner das Pulver ist. Man kann somit durch 
 EMI1.1 
 beliebig ändern. 



   Man kann z. B. mit gepulvertem Kadmiumoxyd   Durchsehlagspannungen   erreichen, die zwischen 250 Volt und praktisch 0 Volt schwanken. 



   Das Kadmiumoxyd kommt als Mineral vor, kann aber auch auf chemischem Wege, z. B. durch Erhitzen von Kadmiumnitrat, hergestellt werden. 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 



    Series connection lamp.



   The invention relates to an electric incandescent lamp which is provided in a known manner with a resistor attached parallel to the filament, which does not allow any or almost no current at the operating voltage of the lamp, but can become conductive due to a higher voltage and if the filament breaks this way short-circuits the two feed lines. These lamps, called series lamps for short, are used for street or sewer lighting, for illumination purposes and in general where it is advantageous to connect a number of lamps in series.



  If one of these lamps suffers damage, e.g. If, for example, the filament breaks, the resistor creates a short circuit that prevents the entire row of lamps from being de-energized.



   The electric incandescent lamp according to the invention is provided with a resistor which consists of cadmium oxide, which can be accommodated in the lamp in powder form.



   The cadmium oxide can easily be brought into powder form and is very stable. It is easily available and retains its good properties despite the adverse effects that occur as a result of the base being cemented onto the glass bulb. The breakdown voltage of the cadmium oxide depends on the fineness of the powder, u. between it is the higher, the finer the powder is. So you can get through
 EMI1.1
 change at will.



   You can z. B. with powdered cadmium oxide achieve breakdown voltages that fluctuate between 250 volts and practically 0 volts.



   The cadmium oxide occurs as a mineral, but can also be chemically, e.g. B. by heating cadmium nitrate.

** WARNING ** End of DESC field may overlap beginning of CLMS **.

 

Claims (1)

PATENT-ANSPRUCH : Reihenschaltungslampe, die mit einem parallel zum Glühdraht angebrachten Wideistand versehen ist, dadurch gekennzeichnet, dass dieser Widerstand der Hauptsache nach aus Kadmiumoxyd besteht, das in Pulverform in der Lampe untergebracht wird. **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATENT CLAIM: Series-connected lamp which is provided with a Wideistand attached parallel to the glow wire, characterized in that this resistor mainly consists of cadmium oxide, which is housed in the lamp in powder form. ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT118377D 1928-04-27 1929-03-23 Series connection lamp. AT118377B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL118377X 1928-04-27

Publications (1)

Publication Number Publication Date
AT118377B true AT118377B (en) 1930-07-10

Family

ID=19775316

Family Applications (1)

Application Number Title Priority Date Filing Date
AT118377D AT118377B (en) 1928-04-27 1929-03-23 Series connection lamp.

Country Status (1)

Country Link
AT (1) AT118377B (en)

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