CH156621A

CH156621A - Board.

Info

Publication number: CH156621A
Authority: CH
Inventors: Niederhauser Jean
Original assignee: Niederhauser Jean
Priority date: 1931-02-23
Filing date: 1931-02-23
Publication date: 1932-08-15

Description

  

  Tableau.    La présente invention a pour objet un  tableau dont certaines figures au moins sont  discernables lorsqu'il est éclairé par devant  et certaines aussi lorsqu'il l'est par derrière.  Ce tableau est caractérisé en ce qu'il com  porte au moins un élément lui-même constitué  par l'assemblage de diverses feuilles dont  l'une,- qui est perforée de part en part en  des points tels de sa surface que les parties  perforées dessinent les figures qui sont     discer-          nables    par transparence,

   est faite de deux  couches de matières de couleurs     différentes     et est creusée au moins jusqu'à la surface  de séparation des deux matières en des ré  gions telles que les figures qui sont     discer-          nables    par éclairage direct se détachent en  la couleur de l'une des matières sur un fond  de la couleur de l'autre.  



  Le dessin ci-annexé représente, à titre  d'exemple, deux formes d'exécution de l'objet  de l'invention considéré seulement dans sa  partie essentielle, un détail de montage de       deux    éléments de cette partie et une coupe  transversale de l'ensemble, à petite échelle.

      La     fig.    1 est une vue en perspective d'un  élément de la partie essentielle du tableau;  La     fig.    2 montre les parties     constituantes     de cet élément;  La     fig.    3 en est une coupe à grande  échelle suivant     A-B    de la     fig.    1;  La     fig.    4 montre en coupe une seconde  forme d'exécution;  La     fig.    fi montre en coupe un détail de  montage;  La     fig.    6 est la coupe transversale déjà  mentionnée.  



  L'élément représenté en     fig.    1 est formé  de trois parties 1, 2 et 3. La première est  une feuille de verre plaqué dont la majeure  partie 1 est par exemple en verre     blan(:    opa  que ou seulement translucide, et dont la  couche de plaquage     l'    est de couleur foncée.  Cette feuille plaquée est érodée en des ré  gions telles que 4 jusqu'à la surface de sé  paration des deux couches de     matière    et de  manière à ce que se dessinent en blanc, sur  la couleur de la feuille l', les figures     dit     tableau.

   La feuille 1 est en outre érodée en      d'autres régions jusqu'à être perforée entiè  rement, comme en 5, et de manière à ce  que ces perforations dessinent par exemple  la même figure que la creusure 4, mais en  traits plus étroits.  



  La feuille 2 est une feuille mince, de  celluloïd par     exémple,    et de couleur noire  opaque, qui présente des perforations qui se  superposent exactement à celle de la feuille 1.  



  La feuille 3 est de verre transparent, de  préférence teinté, qui est rendu seulement  translucide par le fait que sa face d'arrière 7  est dépolie dans le but qu'elle diffuse la  lumière qui doit traverser le tableau depuis  l'arrière.  



  La forme d'exécution montrée à la     fig.    4  diffère de la première en ce     que    les     figures     sont dessinées en relief par les parties ré  servées de la couche de plaquage qui est  enlevée en 4' et percée en 5' en même temps  que la feuille 1.  



  La     fig.    5 montre deux éléments contigus  8 et 9 pourvus, près de leurs bords en con  tact, de bandes 10 et 11 qui se recouvrent  mutuellement afin d'empêcher que la lumière  ne passe par l'interstice. La     fig.    6 montre  comment un élément tel que 8 se trouve  disposé par rapport à une source de lumière  13 située au foyer d'un réflecteur 12.  



  La troisième feuille, qui est dépolie à  l'arrière, peut aussi être plaquée d'une couche  en couleur sur l'une de ses faces.  



  . Un élément du tableau pourrait ne pas  comporter de feuilles telles que 2. La lu  mière émise au travers des perforations  pourrait être sélectionnée par une feuille de  matière transparente teintée qui serait inter  calée entre la feuille 1 et une feuille 3 in  colore. Les figures du tableau peuvent être  des signes     typographiques    ou des figures  quelconques. Lorsque les perforations dessi  nent des courbes fermées, les parties de  feuilles qui se trouvent ainsi découpées peu  vent être assemblées par le moyen de che  villes avec les autres feuilles. Ces chevilles  peuvent être en celluloïd et affecter la forme  de rivets. Les diverses feuilles peuvent être    assemblées entre elles au moyen d'une colle  à l'acétone.  



  Un conçoit que le tableau puisse être  formé de plusieurs éléments de même espèce  juxtaposés et que chacun d'eux peut porter  par exemple un ou plusieurs signes typo  graphiques. Les éléments sont de préférence  de forme rectangulaire ou en losange et por  tent, vers leurs bords juxtaposés, des organes  d'emboîtement destinés à empêcher la lu  mière de passer par les interstices. Ils peu  vent être introduits dans un cadre à glissière  et y fermer l'ouverture d'un réflecteur à  l'intérieur duquel sont montées des sources  de lumière.



  Board. The present invention relates to a table of which at least certain figures are discernible when it is illuminated from the front and some also when it is illuminated from behind. This table is characterized in that it comprises at least one element itself constituted by the assembly of various sheets, one of which, - which is perforated right through at points such on its surface as the perforated parts draw the figures which can be seen by transparency,

   is made of two layers of materials of different colors and is hollowed out at least to the surface of separation of the two materials in regions such that the figures which are discernible by direct light stand out in the color of one materials on a background of the color of the other.



  The accompanying drawing shows, by way of example, two embodiments of the object of the invention considered only in its essential part, a mounting detail of two elements of this part and a cross section of the together, on a small scale.

      Fig. 1 is a perspective view of an element of the essential part of the table; Fig. 2 shows the constituent parts of this element; Fig. 3 is a cross-section on a large scale along A-B of FIG. 1; Fig. 4 shows in section a second embodiment; Fig. fi shows a cutaway detail; Fig. 6 is the cross section already mentioned.



  The element shown in fig. 1 is formed of three parts 1, 2 and 3. The first is a sheet of plated glass, the major part 1 of which is for example white glass (: opaque or only translucent, and the plating layer of which is colored. This veneered sheet is eroded in regions such as 4 up to the separation surface of the two layers of material and so that on the color of the sheet l 'emerges in white. board.

   The sheet 1 is further eroded in other regions until it is completely perforated, such as in 5, and so that these perforations form, for example, the same figure as the recess 4, but in narrower lines.



  Sheet 2 is a thin sheet, of celluloid for example, and opaque black in color, which has perforations which are exactly superimposed on that of sheet 1.



  The sheet 3 is of transparent glass, preferably tinted, which is made only translucent by the fact that its rear face 7 is frosted in order that it diffuses the light which must pass through the picture from the rear.



  The embodiment shown in FIG. 4 differs from the first in that the figures are drawn in relief by the reserved parts of the cladding layer which is removed at 4 'and drilled at 5' at the same time as the sheet 1.



  Fig. 5 shows two contiguous elements 8 and 9 provided, near their mating edges, with bands 10 and 11 which overlap each other in order to prevent light from passing through the interstice. Fig. 6 shows how an element such as 8 is arranged relative to a light source 13 located at the focus of a reflector 12.



  The third sheet, which is frosted at the back, can also be plated with a color layer on one of its faces.



  . An element of the table could not include sheets such as 2. The light emitted through the perforations could be selected by a sheet of tinted transparent material which would be interposed between sheet 1 and a sheet 3 in color. The figures in the table can be typographical signs or any figures. When the perforations draw closed curves, the parts of the sheets which are thus cut can be assembled by means of che towns with the other sheets. These dowels can be celluloid and take the form of rivets. The various sheets can be assembled together using acetone glue.



  One understands that the table can be formed of several elements of the same kind juxtaposed and that each of them can bear for example one or more typographical signs. The elements are preferably rectangular or diamond shaped and bear, towards their juxtaposed edges, interlocking members intended to prevent light from passing through the interstices. They can be introduced into a sliding frame and close the opening of a reflector inside which light sources are mounted.

Claims

CLAIM Table of which at least certain figures are discernible when it is illuminated from the front and some also when it is illuminated from behind, characterized in that it comprises at least one element itself formed by the assembly of various sheets one of which, which is perforated right through at points such on its surface that the perforated parts draw figures which are discernible by transparency, is made of two layers of materials of different colors and is hollowed out at least up to the separating surface of the two materials at regions such that figures which are discernible by direct illumination stand out in the color of one of the materials against a background of the color of the other.

<B> SUB-CLAIMS: </B> 1 Table according to claim, characterized in that the mentioned element comprises at least one sheet of diffusing translucent material. 2 Table according to sub-claim 1, characterized in that said diffusing sheet is of transparent glass and is made only translucent by the fact that at least one of its faces is de-polished. 3 Table according to sub-claim 2, ca actérisé in that the frosted glass sheet is made of colored glass.

4 Table according to sub-claim Z, ca actérisé in that the frosted glass sheet is made of a glass plated with a colored layer. 5 Table according to claim, characterized in that the perforated sheet carries, as seemed with it against its rear face, a sheet of diffusing translucent material. _ 6 Table according to claim, characterized in that said perforated sheet door, assembled with it against its rear face; a sheet of opaque material with perforations superimposed on its own.

7 Table according to sub-claim 6, ca acterized in that the opaque perforated sheet is made of celluloid. 8 Table according to sub-claim 7, ca acterized in that the opaque perforated sheet carries, assembled with it against its rear face, a sheet of diffusing translucent material. 9 Table according to claim, characterized in that the perforated sheet made of two layers of material is made of plated glass and is arranged so that the plated face is at the front. 10 Table according to sub-claim 9, characterized in that the lower layer of the clad glass sheet is of translucent white glass.

11 Table according to sub-claim 10, characterized in that the plating layer is eroded so that the figures of the table stand out in relief and in the color of the plating on a white background. 12 Table according to sub-claim 10, characterized in that the cladding layer is eroded so that the figures of the table stand out in hollow and in white on the color of said layer. 13 Table according to claim, characterized in that it comprises several juxtaposed elements. 14 Table according to sub-claim 13, characterized in that each of the elements bears the figure of a typographical sign.

<B> 15 </B> Table according to sub-claim 13, characterized in that the elements, of rectangular shape, carry towards their juxtaposed edges interlocking members intended to prevent light from passing through the gap. 16 Table according to sub-claim 13, characterized in that its elements are introduced into a sliding frame and close the opening of a reflector inside which light sources are mounted. 17 Table according to claim, in which the perforations draw closed curves, characterized in that the parts of the sheets which are thus cut are assembled with the other sheets by means of pins.

18 Table according to sub-claim 17, characterized in that the pins are made of celluloid and take the form of rivets.