A Process for the Production on Glass of Decorative Pictures or Designs.
Year: 1899

page_text: Date of Application, 2nd Mar., 1899
Complete Specification Left, 29th Nov., 1899-Accepted, 27th Jan,, 1900
PROVISIONAL SPECIFICATION.
A Process for the Production on Glass of Decorative Pictures or
Designs.
I, BENJAMIN JOSEPH BARNARD MILLS, of 23, Southampton Buildings, in the
County of London, Patent Agent, do hereby declare the nature of this invention
(a communication to me from Félix Pagnon, Engineer, of 22, Rue Tramassac,
Lyons, in the Republic of France) to be as follows:
The invention relates to painting on glass, whether applied to windows or the
like to be seen by transparency or applied to glass coverings or linings applied
to opaque surfaces.
It has for its object the economic production of a great number of copies, of a
subject of decoration first engraved on one or several suitable cylinders. It
permits of obtaining all possible pictorial styles, as also the imitation of panes,
tiles or other ceramic articles.
For this purpose cylinders of flexible material are employed, such as india
rubber or gelatine, moulded or engraved in relief according to the design to be
reproduced. There will be as many cylinders as there are colors in the design,
and these cylinders will be charged with a sufficiently considerable quantity of
color to deposit at a single operation, on the surface of the glass, a thickness of
color which would require several coats applied by brush. To attain this end it is
necessary that the colors be employed in a half pasty condition, in order to avoid
the seams and even the running which are produced by the fluid colors ordinarily
employed, this consistence is given them by grinding them in very siccative
varnish containing a large proportion of resin, and rendered very dense by a
slow evaporation.
The color is first spread in a regular coat upon a plane or cylindrical surface
upon which the cylinder engraved to correspond with this color is rolled in various
directions until the reliefs of this cylinder are furnished with a sufficiently strong
thickness of color, to be transported at a single operation to the surface of the
glass.
The sheet of glass is placed on a bed of soft and very elastic material, enabling
it to obtain a bearing upon its entire lower surface whatever irregularities it may
have, and protecting it against fracture.
The cylinders, also soft, can be applied to the upper surface simply by their
weight without other pressure.
The cylinders are rolled over the surface of the glass one or more times back-
wards and forwards until they leave the desired thickness of color. A reference
line or mark corresponding with the commencement of the subject, is traced on the
glass and on each cylinder in order to enable these latter to be placed exactly at
the desired point, and in order that each color may come or register exactly in its
place.
To facilitate the registering, a rack is fixed at each side of the glass with
which gear two pinions fixed on the axis of each cylinder, the diameter of which
is exactly that of the cylinder.

page_text: The process above described is applicable to opaque coverings or linings.
For transparent pictures the points or colors above described will be replaced
by the enamels ordinarily employed by painters on glass, but grinding them more
carefully because they will be always employed in a pasty state; they will be
ground in fatty, or thin vehicles; they are otherwise applied in the same manner
as above.
Dated this 2nd day of March 1800
A Process for the Production on Glass of Decorative Pictures or
Designs.
I, BENJAMIN JOSEPH BARNARD MILLS, of 23, Southampton Buildings, in the
County of London, Patent Agent, do hereby declare the nature of this invention
(a communication to me from Félix Pagnon, Engineer, of 22, Rue Tramassac,
Lyons, in the Republic of France), and in what manner the same is to be performed
to be particularly described and ascertained in and by the following statement:-
The invention relates to painting on glass, whether applied to windows or the
like to be seen by transparency, or to glass coverings or linings applied to opaque
surfaces.
It has for its object the economic production of a great number of copies, of a
subject of decoration, first engraved on one or several suitable cylinders. It
permits of obtaining all possible pictorial styles, as also the imitation of panes,
tiles or other ceramic articles.
For this purpose cylinders of flexible material are employed. such as india
rubber or gelatine, moulded or engraved in relief according to the design to be
reproduced. There will be as many cylinders as there are colors in the design,
and these cylinders will be charged with a sufficiently considerable quantity of
color to deposit at a single operation, on the surface of the glass, a thickness of
color which would require several coats applied by brush. To attain this end it is
necessary that the colors be employed in a half pasty condition, in order to avoid
the seams and even the running which are produced by the fluid colors ordinarily
employed, this consistence is given them by grinding them in very siccative
varnish containing a large proportion of resin, and rendered very dense by a
slow evaporation.
The color is first spread in a regular coat upon a plane or cylindrical surface
upon which the cylinder engraved or moulded to correspond with this color is
rolled in various directions until the reliefs of this cylinder are furnished with a
sufficiently strong thickness of color, to be transported at a single operation to the
surface of the glass.
The sheet of glass is placed on a bed of soft and very elastic material, enabling
it to obtain a bearing upon its entire lower surface whatever irregularities it may
have, and protecting it against fracture.
The cylinders which are also soft, can be applied to the upper surface simply
by their weight without other pressure.
The cylinders are rolled over the surface of the glass one or more times back-
wards and forwards until they leave the desired thickness of color. A reference
line or mark corresponding with the commencement of the subject, is traced on the
glass and on each cylinder in order to enable these latter to be placed exactly at

page_text: the desired point, and in order that each color may come or register exactly in its
place.
To facilitate the registering, a rack is fixed at each side of the glass with
which gear two pinions fixed on the axis of each cylinder, the diameter of which
is exactly that of the cylinder.
The process above described is applicable to opaque coverings or linings.
For transparent pictures the points or colors above described will be replaced
by the enamels ordinarily employed by painters on glass, but grinding them more
carefully because they will be always employed in a pasty state; they will be
ground in fatty or thin vehicles; they are otherwise applied in the same manner
as above.
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
The process for the production on glass of all kinds of decorative pictures or
designs either opaque or transparent consisting in the application of colors by
means of cylinders of soft material, moulded or engraved according to the designs
to be reproduced, such cylinders being provided with colors in a pasty condition and
capable of depositing on the glass a sufficient thickness of such colors, substantially
as herein set forth.
Dated this 20th day of Novembar 1800
HARRIS & MILLS,
23, Southampton Buildings, London, W.C., Agents.