DE426188C - Electric two-filament incandescent lamp - Google Patents
Electric two-filament incandescent lampInfo
- Publication number
- DE426188C DE426188C DES59441D DES0059441D DE426188C DE 426188 C DE426188 C DE 426188C DE S59441 D DES59441 D DE S59441D DE S0059441 D DES0059441 D DE S0059441D DE 426188 C DE426188 C DE 426188C
- Authority
- DE
- Germany
- Prior art keywords
- filament
- electric
- insulating
- base
- incandescent lamp
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K9/00—Lamps having two or more incandescent bodies separately heated
- H01K9/02—Lamps having two or more incandescent bodies separately heated to provide substitution in the event of failure of one of the bodies
- H01K9/04—Lamps having two or more incandescent bodies separately heated to provide substitution in the event of failure of one of the bodies with built-in manually operated switch
Landscapes
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Description
Elektrische Zweifadenglühlampe. Die Erfindung bezieht sich auf eine elektrische Zweifadenglühlampe, an deren Sockelstirnfläche die gleichpoligen Endezi der beiden unabhängig voneinander benutzbaren Glühfäden durch in den Isolierkörper des Sockels eingesteckte Isolierstreifen, welche zwecks Einschaltung des zweiten Glühfadens herausgezogen werden müssen, bis zum Unbrauchbarwerden des -ersten Fadens voneinander getrennt gehalten werden. Die Erfindung besteht in der hakenförmigen Umbiigung des aus dem -Glühlampensokkel herausragenden Endes der bekannten und einem bekarififen Zwecke dienenden Isolierstreifen. Der Vorteil gegenüber dem Bekannten besteht dabei darin, daß der hakenförmig umgebogene Teil das Herausziehen des Isolierstreifens aus dem Sockel erleichtert, daß er sich der Form des Stirnendes des Lampensockels gut anpaßt, und daß die Einführung der Lampe in den Ge-Adndekorb der üblichen Schraubfassung nicht behindert wird.Two-filament electric light bulb. The invention relates to a electric two-filament incandescent lamp with homopolar ends on the base face of the two independently usable filaments through into the insulating body the socket inserted insulating strips, which for the purpose of switching on the second Filament must be pulled out until the -first filament becomes unusable are kept separate from each other. The invention consists in hook-shaped Umbiigung of the protruding from the bulb base end of the known and an insulating strip for useful purposes. The advantage over the Known consists in the fact that the hook-shaped bent part is pulled out the insulating strip from the base makes it easier for it to follow the shape of the front end of the lamp cap fits well, and that the introduction of the lamp in the Ge-Adndekorb the usual screw socket is not hindered.
Auf der Zeichnung ist die Erfindung beispielsweise veranschaulicht.The invention is illustrated by way of example in the drawing.
In Abb. i bedeutet a die Glashülle, b das Fadentraggestell, c den inneren, d dein äußeren Glühfaden, e den Socke." f den Gipsausguß, g den Isoliereinsatz des Sockels, h den ausnvechselblaren Kontaktstreifen, i den an seinem freien Ende erfindungsgemäß hakenförmig umgebogenen Isolierstreifen, i einen Zuführungsdraht für e und d, 2 einen Zuführungsdraht für e, 3 einen Zuführungsdraht für d.In Fig. I, a denotes the glass envelope, b the thread support frame, c the inner, d the outer filament, e the sock. "F the plaster cast, g the insulating insert of the base, h the interchangeable contact strip, i the hook-shaped at its free end according to the invention bent insulating strips, i a lead wire for e and d, 2 a lead wire for e, 3 a lead wire for d.
In Abb. 2 bedeutet o die Glashülle, p den oberen Glühfaden, g den unteren Glühfaden, r den Glühfadenträger, e den Sockel, f den Gipsausguß, g den Isoliereinsatz des Sockels, h den auswechselbaren Kontaktstreifen, 1 i`den an seinem freien Ende erfindungsgemäß hakenförmig umgebogenen Isolierstreifen, i einen Stromzuführungsdraht für p und g, 2 einen Stromzuführungsdraht für r), 3 einen Stromzuführungsdraht für g.In Fig. 2 o denotes the glass envelope, p the upper filament, g the lower filament, r the filament holder, e the base, f the plaster cast, g the insulating insert of the base, h the exchangeable contact strip, 1 i`den at its free end According to the invention, insulating strips bent in the shape of a hook, i a power supply wire for p and g, 2 a power supply wire for r), 3 a power supply wire for g.
Wenn ein Glühdraht unbrauchbar wird oder der zweite ebenfalls eingeschaltet werden soll, so wird in an sich bekannter Weise der Isolierstreifen entfernt, so daß der im allgemeinen durch ihn verdeckte zweite Stirnkontakt des Sockels in Tätigkeit tritt.When one filament becomes unusable or the second is switched on as well is to be removed, the insulating strip is removed in a manner known per se, see above that the second front contact of the base, which is generally covered by it, is in action occurs.
Die auf der Zeichnung dargestellten Zweifadenglühlampen sind, abgesehen von der hakenförmigen Gestaltung des Isolierstreifenendes, bekannt.The two-filament light bulbs shown in the drawing are apart known from the hook-shaped design of the insulating strip end.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES59441D DE426188C (en) | 1922-04-12 | 1922-04-12 | Electric two-filament incandescent lamp |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES59441D DE426188C (en) | 1922-04-12 | 1922-04-12 | Electric two-filament incandescent lamp |
Publications (1)
Publication Number | Publication Date |
---|---|
DE426188C true DE426188C (en) | 1926-03-09 |
Family
ID=7493319
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DES59441D Expired DE426188C (en) | 1922-04-12 | 1922-04-12 | Electric two-filament incandescent lamp |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE426188C (en) |
-
1922
- 1922-04-12 DE DES59441D patent/DE426188C/en not_active Expired
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