of Glass, Porcelain, Metal, and other Surfaces.
Year: 1885

page_text: of Glass, Porcelain, Metal, and other Surfaces.
I, GEORGE JONES ATKINS, of Tottenham, in the County of Middlesex, Gentleman,
do hereby declare the nature of the said invention for A NEW OR IMPROVED
"
PROCESS FOR THE DECORATION AND TREATMENT OF GLASS, PORCELAIN, METAL
AND OTHER SURFACES to be as follows:-
"
The first part of this invention relates to the decoration of glass porcelain, metal
and other surfaces for windows, transparencies, facias, imitation tile and marble
surfaces, and the like, and consists of the following process:- -The sheet of glass or
other material to be decorated is coated with a medium sensitive to the action of
light. The required design is then produced on this sensitized plate by exposure to
light under a tracing or otherwise. The glass or other surface is then coated with
a varnish or film of such a nature that it will not spread or run when subjected to
heat, will be insoluble in water, and of such a consistency that it will cover the
surface freely and also be somewhat sticky or tacky. The surface is then washed
in water, the portions of the sensitized surface which have not been acted upon by
light are thereby removed, and the portions which have been so acted upon remain
on the glass or other surface, or vice versa, according to the sensitive medium
employed. The surface is then dried and the design will be represented on the
surface in the more or less transparent varnish. The surface may now be dusted
over freely with any desired powder, for example, any of the well known bronze
powders, glass stains, colours in powder, etcetera, which will adhere to the tacky
surface of the varnish and can be readily removed from the intermediate spaces of
the design or ground which may now be filled in or not with other colours in a
similar manner, or otherwise; and where ceramic or other powders are used of a
vitrifiable nature, the whole may be subjected to heat in a manner well understood
in connection with the manufacture of stained glass. Or the powders or colors
may in some cases be mixed with the varnish or film. Or they may be dusted on
to the surface previous to the washing out.
This part of my invention may be carried out with a variety of modifications
according to the effect it is required to obtain. For instance in order to obtain
the effect of frosted, ground, etched or embossed designs, the tacky surface may
be dusted with a flux in combination or not with colours or tints, and may be
afterwards fired.

page_text: In some cases the glass or other surface may be first coated with a substratum
of varnish or other substance capable of solution by means other than by washing
with water in combination or not with vitrifiable or other colours, and when this
coating is dry the sensitive medium may be applied and the desired design
produced, varnished or not, and washed as before. The surface may now be
treated with a solvent of the substratum, and by these means the design is
produced in the substratum, the spaces or ground being clear glass for example
which may if desired be treated subsequently by etching, gilding silvering,
bronzing, staining, colouring or, where ceramic or vitrifiable substances are used
as a substratum, the whole may be subjected to heat as before referred to. Or, in
the case of metals, the surface may be further ornamented or treated by electro-
deposition.
In order to prepare a surface for treatment by the well known sand blast
process the required design is obtained as before described and in order to form a
resist to the sand blast the tacky portions may be dusted over with a suitable
powder or other material that is elastic and that will not offer a hard surface to
the action of the sand, and by this means more elaborate designs can be produced
than by the well known stencilling process.
When it is desired to etch portions of the design by acid the powder used must
be of such a nature as to resist the action of the acid employed.
The second part of this invention consists in treating glass surfaces, decorated
as described in reference to the first part of this invention, with a cement or
plaster backing of a suitable thickness, in such manner as to preserve them from
injury and at the same time make them applicable to be used as tiles, plaques,
pilasters panels, dados, freize, and for decorative purposes generally.
In the case of designs prepared in vitrifiable substances the backing may consist
of a vitrifiable clay, flux, or earth in combination with other clays or earths, and
the glass surface may then be fused to the backing by heat. And in the case of
designs prepared in ordinary colours, bronzes, etcetera, the back may consist of a
suitable non-vitrifiable cement or composition, but the backing must be properly
tempered in order to avoid excessive contraction or expansion and consequent
fracture of the glass surface.

page_text: of Glass, Porcelain, Metal, and other Surfaces.
I, GEORGE JONES ATKINS, of Tottenham in the County of Middlesex, Gentleman,
do hereby declare the nature of my said invention for "A NEW OR IMPROVED
PROCESS FOR THE DECORATION AND TREATMENT OF GLASS, PORCELAIN, METAL AND
OTHER SURFACES," and in what manner the same is to be performed to be
particularly described and ascertained by the following statement :-
The first part of this invention relates to the decoration of glass and porcelain,
metal and other surfaces for windows, transparencies, facias, imitation tile and
marble surfaces, and the like, and consists of the following process:-The sheet of
glass, or other material to be decorated, is coated with a medium sensitive to the
action of light. The required design is then produced on this sensitized plate by
exposure to light under a tracing or otherwise. The glass, or other surface, is then
coated with a varnish or film of such a nature that it will not spread or run when
subjected to heat; will be insoluble in water, and of such a consistency that it will
cover the surface freely and also be somewhat sticky or tacky. I have found
boiled oil, for example, suitable for this purpose. The surface is then washed in
water, the portions of the sensitized surface which have not been acted upon by
light are thereby removed, and the portions which have been so acted upon remain
on the glass or other surface or vice versa, according to the sensitive medium
employed. The surface is then dried and the design will be represented on the
surface in the more or less transparent varnish. The surface may now be dusted
over freely with any desired powder, for example, any of the well known bronze
powders, glass stains, colours in powder, etcetera, which will adhere to the tacky
surface of the varnish and can be readily removed from the intermediate space of
the design or ground which may now be filled in, or not, with other colours in a
similar manner, or otherwise, and where ceramic or other powders are used of a
vitrifiable nature, the whole may be subjected to heat in a manner well understood
in connection with the manufacture of stained glass. Or the powders or colors
may in some cases be mixed with the varnish or film. Or they may be dusted on
to the surface previous to the washing out.
with a variety of modifications
For instance in order to obtain
This part of my invention may be carried out
according to the effect it is required to obtain.
the effect of frosted, ground, etched, or embossed designs, the tacky surface may
be dusted with a flux in combination, or not, with colours or tints, and may be
afterwards fired.
In some cases the glass, or other surface, may be first coated with a substratum
of varnish, such as boiled oil, or asphaltum, for example, or other substance capable
of solution by means other than by washing with water in combination or not
with vitrifiable or other colours, and when this coating is dry, the sensitive
medium may be applied and the desired design produced, varnished or not, and
washed as before. The surface may now be treated with a solvent of the sub-
stratum, and by these means, the design is produced in the substratum, the spaces
or ground being clear glass for example, which may, if desired, be treated
subsequently by etching, gilding, silvering, bronzing, staining, colouring, or where
ceramic or vitrifiable substances are used in the substratuin, the whole may be

page_text: subjected to heat as before referred to. Or, in the case of metals, the surface may
be further ornamented or treated by electro-deposition.
In order to prepare a surface for treatment by the well known sand blast process,
the required design is obtained as before described, and in order to form a resist to
the sand blast, the tacky portions may be dusted over with a suitable powder, or
other material that is elastic, cork dust for example, and that will not offer a hard
surface to the action of the sand, and by this means more elaborate designs can be
produced than by the well known stencilling process.
When it is desired to etch portions of the design by acid, the powder used must
be of such a nature as to resist the action of the acid employed.
The second part of this invention consists in treating glass surfaces, decorated as
described in reference to the first part of this invention, with a cement or plaster
backing of a suitable thickness and of any desired colour or colours in such manner
as to preserve them from injury, and at the same time make them applicable to be
used as tiles, plaques, pilasters, panels dados, freizes and for decorative purposes
generally.
In the case of designs prepared in vitrifiable substances, the backing may consist
of a vitrifiable clay, flux, or earth in combination with other clays or earths, and
the glass surface may then be fused to the backing by heat. And in the case of
designs prepared in ordinary colours, bronzes, etcetera, the back may consist of a
suitable non-vitrifiable cement or composition, but the backing must be properly
tempered in order to avoid excessive contraction, or expansion, and consequent
fracture of the glass surface.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is
First. The new or improved process for the decoration and treatment of glass,
porcelain, metal, and other surfaces, which consists in coating the surface to be
decorated with a medium sensitive to the action of light, producing the design on
the sensitive medium by exposure to light, coating with varnish, washing in water,
drying, dusting with bronze powders, glass stains, powdered colours etcetera, and,
where the powders are of a vitrifiable nature, subjecting to heat or "firing" as
hereinbefore described.
Second. The modification of the process forming the subject of the first claim
clause, which consists in first coating the surface to be decorated with a substratum
of varnish or other substance capable of solution by means other than by washing
with water, then applying the sensitive medium, producing the design thereon and
washing, then treating with a solvent of the substratum, and, where ceramic or
vitrifiable substances are used in the substratum, subjecting to heat or "firing," as
herein before described.
Third. Preparing glass and other surfaces for treatment by the sand blast
process, or by acid etching, by first producing a design as hereinbefore described,
and then dusting the tacky surface of such design, or combining with such surface
a suitable resist as herein before described.
Fourth. Treating glass surfaces, decorated as hereinbefore described, with
preserving backing of cement, plaster, vitritiable clay, flux, or earth in combina-
tion with other clays or earths, as herein before described.