BE379312A - - Google Patents

Info

Publication number
BE379312A
BE379312A BE379312DA BE379312A BE 379312 A BE379312 A BE 379312A BE 379312D A BE379312D A BE 379312DA BE 379312 A BE379312 A BE 379312A
Authority
BE
Belgium
Prior art keywords
parts
screw
safety
insulating material
safety screw
Prior art date
Application number
Other languages
French (fr)
Publication of BE379312A publication Critical patent/BE379312A/fr

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R33/00Coupling devices specially adapted for supporting apparatus and having one part acting as a holder providing support and electrical connection via a counterpart which is structurally associated with the apparatus, e.g. lamp holders; Separate parts thereof
    • H01R33/05Two-pole devices
    • H01R33/22Two-pole devices for screw type base, e.g. for lamp

Landscapes

  • Securing Globes, Refractors, Reflectors Or The Like (AREA)

Description

       

   <Desc/Clms Page number 1> 
 



  Perfectionnements apportés aux douilles de lampes à incandescence. 



    @   Il est connu de faire les coufiles de   lampes   à incan- descence en matière isolante, par   exemple   en la matière plas- tique dite "bakélite". Ces douilles peuvent se composer je plusieurs parties, qu'on peut assembler au moyen d'un   '::'il::

  ,-   tage ou par   d'autres   moyens de fixation.   Ensuite   les diffé- rentes parties sont verrouillées, ce qui   peut   s'effcotuer à   l'aide     d'une   vis de   sûreté   du   genre   ordinaire.   Toutefois,   ces vis présentent l'inconvénient que la matière  isolante   consti- tuant   la   douillese   tenaille     souvent   localement sous   inaction   de la pointe aiguë de la vis.      

 <Desc/Clms Page number 2> 

 



  La présente invention a pour but d'éviter cet in- 
 EMI2.1 
 convéni en t. 



     Conformément   à l'invention, les parties faites en matière isolante sont   verrouillées   par une vis de sûreté munie d'une pointe formant fraise. 



   L'invention va. être décrite plus en détail en se ré- férant au dessin   annexée   qui en représente, à titre d'exem- ple, un mode de réalisation. 



   La fig. 1 montrela vis de sûreté. 



   La fig. 2 représente en perspective les deux parties de la douille que l'on désireverrouiller ensemble. 



   Sur la fig. 1 la tête de la vis estdésignée par 1, la partie filetée de la vis par 2 et la pointe formant frai- se de la vis par 3. 



   Sur la fig. 2 les parties que l'on désire   verrouil-   ler sont désignées par A et B, la vis de sûreté par 1 et les organes conducteursservant à amener le courant par 2 et 3. 



    Apres   avoir vissé les   parties   A et B l'une dans l'autre, on visse la vis de sûreté de façon que sa pointe formant fraise pénètre dans la matière d'une des parties en y produisant ainsi une cavité sans que la matière se fendille. 



   On peut utiliser ces vis de sûreté dans   les   cas où la   matière   constituante de la douillene permet pas l'emploi de vis   munies   d'une pointe   normale.  



   <Desc / Clms Page number 1>
 



  Improvements made to the sockets of incandescent lamps.



    @ It is known to make the coufiles of incandescent lamps in insulating material, for example in the so-called “bakelite” plastic material. These sockets can consist of several parts, which can be assembled by means of a '::' il ::

  , - floor or by other fixing means. Then the different parts are locked, which can be removed using a safety screw of the ordinary type. However, these screws have the disadvantage that the insulating material constituting the sleeve often clamps locally under inaction of the sharp point of the screw.

 <Desc / Clms Page number 2>

 



  The object of the present invention is to avoid this in-
 EMI2.1
 Convenient.



     According to the invention, the parts made of insulating material are locked by a safety screw provided with a point forming a milling cutter.



   The invention goes. be described in more detail with reference to the accompanying drawing which shows, by way of example, one embodiment.



   Fig. 1 shows the safety screw.



   Fig. 2 shows in perspective the two parts of the socket that it is desired to lock together.



   In fig. 1 the head of the screw is designated by 1, the threaded part of the screw by 2 and the tip forming the screw milling cutter by 3.



   In fig. 2 the parts which one wishes to lock are designated by A and B, the safety screw by 1 and the conductive parts serving to bring the current by 2 and 3.



    After having screwed parts A and B into one another, the safety screw is screwed in so that its point forming a milling cutter penetrates into the material of one of the parts, thus producing a cavity therein without the material splitting. .



   These safety screws can be used in cases where the material of the socket does not allow the use of screws with a normal point.


    

Claims (1)

-:- R E S U M E -:- Cette invention concerne une douille de lampes à in- candescence se composant au moins de deux parties qui sont faites en une matière isolante et verrouillées l'une à l'au- tre au moyen d'une vis de sûreté munie d'une pointe formant fraise. -:- ABSTRACT -:- This invention relates to an incandescent lamp socket comprising at least two parts which are made of an insulating material and locked together by means of a safety screw with a tip forming strawberry.
BE379312D BE379312A (en)

Publications (1)

Publication Number Publication Date
BE379312A true BE379312A (en)

Family

ID=49246

Family Applications (1)

Application Number Title Priority Date Filing Date
BE379312D BE379312A (en)

Country Status (1)

Country Link
BE (1) BE379312A (en)

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