DE114918A - - Google Patents

Description

BERLIN. PRINTED IN THE REICHSDRUCKEREI.

Claims (1)

PATENT OFFICE. PATENT LETTERING CLASS 32 Patented in the German Empire on October 10, 1899. In the American patent specification 307126 a method is described which consists in the application of the drawing by painting, printing, etching and the like on the back of a shiny glass panel, backing the entire back with gold and the like and covering the entire area with a deck base. The drawing then appears in the case of etching Seen from the front, matt on a shiny ground, but there is a deepening of the drawing on the Reverse was not made, extensive. The present proceedings, however, indicate by the fact that the drawing is worked out by sandblasting and etching deep on the back of a glass plate and thereupon the recessed but rough surfaces with a thick layer of firnif glass-like Transparency is given, so that after being deposited with gold or the like on the The front appear raised in relief. Even with the one mentioned in the American one The process described in the patent specification is applied to the drawing with a varnish coating, but this only has the purpose in the event that the drawing has been applied in color, to protect this layer of paint. In detail, the procedure is as follows: A glass panel is pasted on the back with paper, from which the drawing is cut out. This is now blown in deeply by sandblasting and then the Paper peeled off again. Now these still flat parts of the back are covered with tinfoil and etched the blown drawing to make it smoother and shinier. On that the glass panel is cleaned and the drawing is coated with firnifs as often as it is heated, until it has taken on the transparency of the surrounding bare glass surface. This Drawings worked out in this way are now covered with gold, mother-of-pearl or the like, whereupon they appear raised in relief on the front of the panel. Can also Drawing covered like a mirror or painted in colored tones. Outlines of the drawings can be made according to known methods, as well as the shadows and decorations on inscriptions. For glass panels, which should have a base on the back, the same by roller or Brush applied. Sheets of flashed glass can also be used. Patenτ claim: Procedure for decorating glass panels by means of drawings on the back, which appear raised in relief on the front, characterized by the fact that the drawing in a known manner on the back of the board by a sandblasting fan blown in deeply, etched on and then covered with firnifs or the like for so long, until it has assumed the transparency of the surrounding bare glass surface, whereupon the drawing is backed with gold, mother-of-pearl, glass or the like and finally, if necessary, either on the latter alone or on the entire back of the glass a suitable one Cover primer is applied.