An Improved Process for Producing Indelible Ornamentations upon Glass or Glazed Surfaces.
Year: 1894

page_text: Date of Application, 26th Feb., 1894
Complete Specification Left, 30th Nov., 1894-Accepted, 5th Jan., 1895
PROVISIONAL SPECIFICATION.
An Improved Process for Producing Indelible Ornamentations upon
Glass or Glazed Surfaces.
I, CHARLES MARGOT, Assistant at the University Laboratory, Geneva,
Switzerland, do hereby declare the nature of this invention to be as follows:-
The decoration of glass, porcelain etc. by means of metallic ornaments has
heretofore been effected in such a manner that suitable thin gold or silver fillets
were applied by means of a fixing of any kind upon the surface to be ornamented
and were then covered with glaze and burnt into the porcelain
My invention consists in the application of metallic decorations, that is to say
metallic strokes, spots or indentations of any shape and dimension whatever upon
glass or glazed surfaces, by means of a tool preferably of pure or alloyed aluminium
(as for instance a style, a small roller, or ball) adapted to be moved about upon
the said surface with sufficient pressure, to form in those places where it passes
a metallic stroke scratch or indentation upon the above mentioned surface, said
metallic application not being liable to be washed out by mere friction. The
metallic decorations when produced thus can only be obliterated by means of
hydrochlorate or similar acids.
If the aluminium tool is applied by hand upon the surface to be decorated, the
work will be rendered easier by previously slightly moistening the surface by
means of a small jet of steam or other suitable means, this however being prejudicial
to the brightness of the stroke.
If on the contrary the aluminium tool is moved upon the glass or glazed surface
by mechanical means moistening is not necessary and a brighter stroke is produced
which, as mentioned before, cannot be washed out by mere friction.
Dated this 26th day of February 1894.
W. P. THOMPSON & BOULT,
Agents for the Applicant.
An Improved Process for Producing Indelible Ornamentations upon
Glass or Glazed Surfaces.
I, CHARLES MARGOT, Assistant at the University Laboratory, Geneva,
Switzerland, do hereby declare the nature of this invention and in what manner the
same is to be performed, to be particularly described and ascertained in and by
the following statement :-
The decoration of glass, porcelain etc. by means of metallic ornaments has
heretofore been effected in such a manner that suitable thin gold or silver fillets
were applied by means of a fixing of any kind upon the surface to be ornamented
and were then covered with glaze and burnt into the porcelain.
My invention consists in the application of metallic decorations, that is to say,
metallic strokes spots or. indentations of any shape and dimension whatever upon
glass or glazed surfaces, by means of a tool preferably of pure or alloyed aluminium
CD 017

page_text: passes
(as for instance a style, a small roller or ball), adapted to be moved about upon
the said surface with sufficient pressure, to form in those places where it
a metallic stroke scratch or indentation upon the above mentioned surface, said
metallic application not being liable to be washed out by mere friction. The
metallic decorations when produced thus can only be obliterated by means of
hydrochlorate or similar acids.
If the aluminium tool is applied by hand upon the surface to be decorated, the
work will be rendered easier by previously slightly moistening the surface by
means of a small jet of steam or other suitable means this however being prejudicial
to the brightness of the stroke.
If on the contrary the aluminium tool is moved upon the glass or glazed surface
by mechanical means, moistening is not necessary and a brighter stroke is produced
which as mentioned before, cannot be washed out by mere friction.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed, I declare that what
I claim is ;-
A process for the application of indelible metallic decorations upon glass or
glazed surfaces consisting in applying and moving upon such surfaces a tool of pure
or alloyed aluminium with sufficient pressure and in directions corresponding to
where the ornaments are to be made so that the tool will leave behind a metallic
stroke of the desired breadth.
Dated this 30th day of November 1894.
W. P. THOMPSON & BOULT,
Agents for the Applicant.