DE473877C - Incandescent lamp with an outwardly insulated contact protection base - Google Patents
Incandescent lamp with an outwardly insulated contact protection baseInfo
- Publication number
- DE473877C DE473877C DES76431D DES0076431D DE473877C DE 473877 C DE473877 C DE 473877C DE S76431 D DES76431 D DE S76431D DE S0076431 D DES0076431 D DE S0076431D DE 473877 C DE473877 C DE 473877C
- Authority
- DE
- Germany
- Prior art keywords
- incandescent lamp
- contact protection
- protection base
- insulated contact
- base
- 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
- H01K1/00—Details
- H01K1/42—Means forming part of the lamp for the purpose of providing electrical connection, or support for, the lamp
- H01K1/46—Means forming part of the lamp for the purpose of providing electrical connection, or support for, the lamp supported by a separate part, e.g. base, cap
Landscapes
- Connecting Device With Holders (AREA)
Description
Glühlampe mit einem nach außen isolierten Berührungsschutzsockel Die Erfindung bezieht sich auf eine elektrische Glühlampe mit Berührungsschutz, die gegen Berührung stromführender Teile beim Anfassen mit der Hand gesichert ist.Incandescent lamp with an outwardly insulated contact protection base Die The invention relates to an electric incandescent lamp with contact protection that is secured against touching live parts when touching it with the hand.
Es sind schon Glühlampen bekannt geworden, bei denen der Sockel an Stelle des äußeren in den Gewindekorb einzuschraubenden Metallgewindes ein solches Außengewinde aus Glas besitzt, also nach außen hin isoliert ist. Zu der Kontaktgebung bei diesen bekannten Glühlampen (nach ihrem Einschrauben) bedarf es aber auch noch einer besonderen Ausbildung der zugehörigen Fassung bzw. steht der Mittelkontakt der Glühlampe nach außen etwas vor.Incandescent lamps have already become known in which the base is on Place the outer metal thread to be screwed into the threaded basket Has external thread made of glass, so it is isolated from the outside. To the contact with these known incandescent lamps (after they have been screwed in), however, it is also necessary a special design of the associated version or is the center contact the light bulb outwards a little.
Gemäß der Erfindung ist die Glühlampe mit Metallinnengewinde zum Überschrauben über dem Gewindekorb versehen, derart, daß die Lampe keine Metallteile nach außen hervortreten läßt und die stromvermittelnde Kontaktplatte für den Mittelkontakt vertieft im Hohlgewinde des Sockels liegt.According to the invention, the incandescent lamp has an internal metal thread for screwing over provided over the threaded basket so that the lamp does not expose any metal parts can emerge and the current-switching contact plate for the center contact is recessed in the hollow thread of the base.
Die Glühlampe ist auf der Zeichnung in Abb. r bis q. im Schnitt dargestellt.The light bulb is on the drawing in fig.r through q. shown in section.
Die Glühlampe wird nicht wie bisher in den Fassungsgewindekorb d eingeschraubt, sondern mit dem Hohlgewinde a der Lampe über den Gewindekorb übergeschraubt (Abb. i). Hierbei liegt die mittlere Kontaktplatte b derart vertieft im Sockel a der Glühlampe, daß diese Kontaktplatte beim Einschrauben der Glühlampe nicht mit der Hand berührt werden kann. Das Hohlgewinde a der Glühlampe ist durch eine Schicht aus Glas c o. dgl. Isolierstoff nach außen vollkommen abgedeckt, so daß eine Berührung von Hand mit den leitenden Kontakten beim Einschrauben der Glühlampe ausgeschlossen ist. Der Kontaktschluß zwischen Glühlampe und Fassung tritt erst ein, wenn der Glühlampensockel völlig in den Gewindekorb d eingeschraubt ist. Auch hiernach ist ein Berühren stromführender Teile von Hand unmöglich.The light bulb is not screwed into the socket thread basket d as before, but screwed over the thread basket with the hollow thread a of the lamp (Fig. I). The middle contact plate b is recessed in the base a of the incandescent lamp in such a way that this contact plate cannot be touched by hand when the incandescent lamp is screwed in. The hollow thread a of the incandescent lamp is completely covered on the outside by a layer of glass c o. The contact between the bulb and the socket only occurs when the bulb base is fully screwed into the threaded basket d. Even after this, it is impossible to touch live parts by hand.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES76431D DE473877C (en) | Incandescent lamp with an outwardly insulated contact protection base |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES76431D DE473877C (en) | Incandescent lamp with an outwardly insulated contact protection base |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE473877C true DE473877C (en) | 1929-03-22 |
Family
ID=7506124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DES76431D Expired DE473877C (en) | Incandescent lamp with an outwardly insulated contact protection base |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE473877C (en) |
-
0
- DE DES76431D patent/DE473877C/en not_active Expired
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