Improvements in a Process for Decorating Glass Panels and the like for Covering Walls or similar Surfaces
Year: 1898

page_text: Date of Application, 10th June, 1898-Accepted, 6th Aug.,
1898
Improvements in a Process for Decorating Glass Panels and the like
for Covering Walls or similar Surfaces,
I, LEON MONDRON, of the Verreries de la Planche, Lodelinsart, Belgium, Glass
Manufacturer, 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
This invention relates to improvements on the process described in Specification
No. 6612 of 1898, of Letters Patent granted to me In that specification I have
described methods of decoration of glass panels and the like intended for the cover-
ing of walls and analogous uses by having designs or drawings impressed upon
or transferred to their surfaces in vitrifiable colours of certain compositions
The present improvements have for their object the application to this manner
of decoration of a process analogous to that known as "mousselinage" or to the
method commonly employed by scene painters to obtain numerous identical repro-
ductions of a drawing or ornamental ground work
The process consists in laying upon the glass to be decorated a thin plate or
sheet of sine or other metal or suitable material previously cut out or perforated
in such a manner that the cuttings out or perforations represent the lines and
contours of the drawing which is to be reproduced on the glass With the aid of
a rather hard brush soaked or dipped in a gummy mixture containing any of the
vitrifiable colour mixtures compounded in accordance with the specification herein-
before referred to, the openings or perforations are brushed in such a manner as
to leave upon the glass a coating in the vitrifiable compounds which reproduce the
design or picture.
To complete the process it is only necessary to remove the sheet and to submit
the glass to annealing in the usual manner.
It is easy to understand that by the process hereinbefore described drawings
or designs in several colours can be easily obtained upon the glass by making use
in succession of plates or sheets cut out or perforated in the proper relative posi-
tions to receive the several colours in such a manner that the combination of the
whole forms the coloured representation.
A modification of the process hereinbefore described consists in laying on uni-
formly in the first instance on the face of the opal glass a thin coating of the
gummy mixture to which is added the necessary vitrifiable colouring matter, then
after allowing it to dry, placing a sheet of sine or metal or other material out out
or perforated negatively or in the reverse portions to that of the sheet or sheets
referred to in the first modification, so that the full parts represent the design
Then by means of a hard and very dry brush the cut out or perforated spaces on
the plate are rubbed so as to bare the glass and remove the coating at these particu-
lar portions.
The plate is finally taken away and after dusting the glass with a suitable silk
or feather duster to remove the fragments produced by the last operation the glass
is finally submitted to the annealing and the process thus completed.

page_text: In the several modifications herein before described designs or drawings in yellow
tints are always obtained without enamel,, with the gummy mixture having added
to it the compositions of ochre and nitrate of silver mentioned in the specification
herein before referred to
Having now particularly described and ascertained the nature of my said
invention and in what manner same is to be performed I declare that what
I claim 16
-
1) The improvements in the process for the decoration of glass panels and the
like described in Specification of Letters Patent No. 5612, 1898, gianted to me,
consisting in placing upon the glass, plate or sheet, on which the drawing or
design is to be produced a cut out or perforated plate permitting of the coating
of the exposed parts of the glass by a brush or the like with a gummy mixture
containing the vitrifiable colours and finally submitting the glass to the annealing
process as hereinbefore described
2) A modification of the improved process claimed in the preceding claim con-
sisting in coating one face of the glass to be decorated with the gummy mixture
containing the vitrifiable colour and in placing over the same after drying a plate
or sheet cut out or perforated in a reverse or negative manner and by means of a
hard brush or its equivalent rubbing all the gummy pellicle away from the exposed
parts and afterwards submitting the glass to the final annealing process, sub-
stantially as hereinbefore described.
TL 10 T
1000
MARKS & CLERK,
18, Southampton Buildings, London, WC, and
13, Temple Street, Birmingham, Agents.