AT113869B - Anti-theft device for light bulbs. - Google Patents
Anti-theft device for light bulbs.Info
- Publication number
- AT113869B AT113869B AT113869DA AT113869B AT 113869 B AT113869 B AT 113869B AT 113869D A AT113869D A AT 113869DA AT 113869 B AT113869 B AT 113869B
- Authority
- AT
- Austria
- Prior art keywords
- theft device
- light bulbs
- arms
- light bulb
- contact
- Prior art date
Links
Landscapes
- Fastening Of Light Sources Or Lamp Holders (AREA)
Description
<Desc/Clms Page number 1>
Diebstahlsicherung für Glühlampen.
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<Desc/Clms Page number 2>
durch eine Schraubenmutter k gesichert ist. Fig. 4 zeigt eine Ausführung der Befestigungsarme e als Rundstift. Die Glüblampe b ist hier mit einem beim Festschrauben eindrückbaren Hohlkörperkontakt
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arme als runde Doppelhaken ausgebildet. Der Kontakt g besteht hier aus einem in dem oberen Teil der Birne in einer Hülse geführten pilzförmigen Stift, der unter Einwirkung einer Schraubenfeder steht.
In Fig. 8 sind F-förmige Befestigungshaken veranschaulicht. Der Kontakt g wird hier von einem aus Weichmetal1 angefertigten Kegel gebildet, dessen Spitze sich beim Einschrauben der Glühbirne abplattet.
Bei der Montierung muss folgender Vorgang beobachtet werden. Vorerst wird der an der üblichen Fassung befindliche Porzellanisolierungsring d abgenommen, die äussere Gewindehülse abgeschraubt und in derselben Reihenfolge auf den Hals der Glühbirne b aufgesteckt, worauf die Glühbirne so weit eingeschraubt wird, bis die Befestigungsarme c über den Rand der inneren Gewindehülse h ragen. Nun werden die Befestigungsarme beispielsweise mit Hilfe eines Schraubenziehers über die Kante der inneren
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<Desc / Clms Page number 1>
Anti-theft device for light bulbs.
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<Desc / Clms Page number 2>
is secured by a screw nut k. Fig. 4 shows an embodiment of the fastening arms e as a round pin. The incandescent lamp b is here with a hollow body contact that can be pressed in when screwing tight
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arms designed as round double hooks. The contact g here consists of a mushroom-shaped pin guided in a sleeve in the upper part of the pear, which is under the action of a helical spring.
F-shaped fastening hooks are illustrated in FIG. The contact g is formed here by a cone made of soft metal1, the tip of which flattens out when the light bulb is screwed in.
The following process must be observed when mounting. First of all, the porcelain insulation ring d on the usual socket is removed, the outer threaded sleeve is unscrewed and placed on the neck of the light bulb b in the same order, after which the light bulb is screwed in until the fastening arms c protrude over the edge of the inner threaded sleeve. Now the mounting arms are for example with the help of a screwdriver over the edge of the inner
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Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT113869T | 1927-06-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT113869B true AT113869B (en) | 1929-07-25 |
Family
ID=3628420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT113869D AT113869B (en) | 1927-06-01 | 1927-06-01 | Anti-theft device for light bulbs. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT113869B (en) |
-
1927
- 1927-06-01 AT AT113869D patent/AT113869B/en active
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