DE347391C - Electric multi-filament light bulb - Google Patents

Electric multi-filament light bulb

Info

Publication number
DE347391C
DE347391C DENDAT347391D DE347391DD DE347391C DE 347391 C DE347391 C DE 347391C DE NDAT347391 D DENDAT347391 D DE NDAT347391D DE 347391D D DE347391D D DE 347391DD DE 347391 C DE347391 C DE 347391C
Authority
DE
Germany
Prior art keywords
lamp
light bulb
electric multi
base
filament light
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
Application number
DENDAT347391D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Publication date
Application granted granted Critical
Publication of DE347391C publication Critical patent/DE347391C/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01KELECTRIC INCANDESCENT LAMPS
    • H01K9/00Lamps having two or more incandescent bodies separately heated
    • H01K9/02Lamps having two or more incandescent bodies separately heated to provide substitution in the event of failure of one of the bodies
    • H01K9/04Lamps 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

  • Connecting Device With Holders (AREA)

Description

Elektrische 1Kehrfadenglühlampe. Die den Gegenstand der Erfindung bildende elektrische Mehrfadenglühlampe hat in bekannter Weise mehrere federnde Kontaktstifte im GIühlampensockel, die beim Einschrauben in die Fassung nacheinander mit dem Mittelkontakt in stromleitende Verbindung kommen. Das neue Kennzeichen der Lampe besteht darin, daß die verschieden langen Kontaktstifte sich in einer unverdrehbar im Sockel gelagerten, längsverschiebbaren Metallglocke befinden. Das ergibt eine einfache und betriebssichere Kontaktherstellung, auch wenn der eine oder andere Glühfaden aus- oder durchgebrannt sein sollte.1-filament electric light bulb. Which is the subject of the invention forming electric multi-filament incandescent lamp has several resilient in a known manner Contact pins in the GIühlampensocket, one after the other when screwing into the socket come into electrical contact with the center contact. The new feature of the Lamp consists in the fact that the contact pins of different lengths are non-rotatable are located in the base, longitudinally displaceable metal bell. That makes one simple and reliable contact establishment, even if one or the other Filament should be out or burnt out.

Eine beispielsweise Ausführungsform der Lampe ist in der Zeichnung dargestellt.An example embodiment of the lamp is in the drawing shown.

Abb. i zeigt die Lampe in Außenansicht; Abb. 2 ist ein Längsschnitt durch den in vergrößertem Maße gezeichneten Lampensockel; Abb.3 ist ein Querschnitt nach A-B der Abb. 2.Fig. I shows the lamp in an external view; Fig. 2 is a longitudinal section through the lamp base drawn in enlarged dimensions; Fig.3 is a cross section according to A-B of Fig. 2.

Bei dem in der Zeichnung veranschaulichten Beispiel hat die Lampe a drei Glühfäden f1, f2, f3 deren je eines Ende an die den Sockel b aus Porzellan oder ähnlicher Isolationsmasse umgebenden Gewindehülse d gelegt ist. Die anderen Enden der Fäden f1, f2, f3 führen zu untereinander isolierten Stiften einer in eine ringförmige Aussparung des Sockels b von unten her ragenden Metallglocke g, die von einem in sie eingeschraubten Stift e getragen und durch eine diesen umwindende Feder h ständig in Auszugslage gedrängt wird. Damit die Glocke sich nicht verdrehen kann, hat sie eine Sieke s, mit der sie sich in einer Rille r des Sockels führt. In Gewindebohrungen mlm2... sind Stifte ol,o2,o3 mit Gewindeköpfen eingelassen, die sich in ebenfalls in diesen Bohrungen, aber längsverschiebbar sitzenden Hülsen nl, n2, 7z3 von verschiedener Länge führen. Federn PI, p2 . . die die Stifte o1, o2, o3 umwinden, drängen die Hülsen ständig abwärts. Durch die Feder 7a wird die Glocke g stets an den Stirnkontakt k der - nicht gezeichneten - Fassung gedrückt. Hierbei können außerdem vorstehende Spitzen in Rillen q der Kontaktplatte k eingreifen, um auf diese Weise die Lampe gegen Lockerwerden in der Fassung zu sichern.In the example illustrated in the drawing, the lamp a has three filaments f1, f2, f3, one end of each of which is placed on the threaded sleeve d surrounding the base b made of porcelain or similar insulation material. The other ends of the threads f1, f2, f3 lead to mutually insulated pins of a metal bell g protruding from below into an annular recess in the base b, carried by a pin e screwed into it and constantly pushed into the extended position by a spring h wrapping around it will. So that the bell cannot twist, it has a sieve with which it is guided in a groove r in the base. Pins ol, o2, o3 with threaded heads are embedded in threaded bores mlm2 ..., which are guided in sleeves nl, n2, 7z3 of different lengths, which are also located in these bores but are longitudinally displaceable. Springs PI, p2. . which wrap around the pins o1, o2, o3 urge the sleeves constantly downwards. The bell g is always pressed against the front contact k of the - not shown - socket by the spring 7a. Here, protruding tips can also engage in grooves q of the contact plate k , in order in this way to secure the lamp against loosening in the socket.

Claims (1)

PATENTANSPRUCH: Elektrische Mehrfadenglühlampe mit mehreren federnden Kontaktstiften im GlÜhlampensockel, die beim Einschrauben der Lampe in die Fassung nacheinander mit dem Mittelkontakt in stromleitende Verbindung kommen, dadurch gekennzeichnet, daß die verschieden langen Kontaktstifte (n1, "z2, n3... ) sich in einer unverdrehbar im Sokkel (b) gelagerten, längsverschieblichen Metallglocke (g) befinden.PATENT CLAIM: Electric multi-filament incandescent lamp with several resilient Contact pins in the incandescent lamp base, which when screwing the lamp into the socket successively come into electrical connection with the center contact, characterized in that that the contact pins of different lengths (n1, "z2, n3 ...) are non-rotatable are located in the base (b), longitudinally displaceable metal bell (g).
DENDAT347391D Electric multi-filament light bulb Expired DE347391C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE347391T

Publications (1)

Publication Number Publication Date
DE347391C true DE347391C (en) 1922-01-20

Family

ID=6256167

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT347391D Expired DE347391C (en) Electric multi-filament light bulb

Country Status (1)

Country Link
DE (1) DE347391C (en)

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