Improvements in the Manufacture of Ornamental Plates of Metal or other Sheets.
Year: 1889

page_text: Date of Application, 15th July, 1839
Complete Specification Left, 15th Apr., 1890-Accepted. 17th May. 1890
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Ornamental Plates of Metal
or other Sheets.
I, CÉSAR FELIX Josz of No. 92 Boulevard Leopold II Brussels in the Kingdom
of Belgium, Civil Engineer, do hereby declare the nature of this invention to be as
follows:-
My invention relates to means of producing ornamental plates of metal or other
sheets, such as celluloid, papier machè, or the like by a process of grounding, printing
and, if desired, embossing, which I carry out in the following manner. In the first
place, in order to vary the surface of the plate and render it suitable for receiving
impressions, I render parts of it grounded or frosted while other parts of it remain
sinooth and polished, in the following manner. I draw the pattern of the frosted
parts on a lithographic stone which ink with adhesive varnish. On this I sprinkle
hard powder such as sand, pulverised glass, emery or the like in various degrees of
fineness according as I wish the frosting to be more or less fine. Removing all the
powder except that which adheres to the inked parts of the design, I press the plate
on the stone, and thus obtain the frosting or grounding effect desired. Afterwards
print any desired design on the plate which is then varnished and dried in a stove.
When it is desired to emboss the plate, I prepare a die and matrix in the following
manner. I draw the design of what is to be in relief on a lithographic stone, and
etch out these parts with acid to the desired depth. I then take an impression on soft
material such as lead, papier maché or the like, and I trim by hand the edges and
bodies of the relief parts of the impression. Having thus prepared a die, I glue over
the etched stone a sheet of copper foil and by means of the die, I press this,
causing it to enter the hollow of the etched stone but with the counterpart form of the
trimmed die. I then, by pressing the ornamental plates between the die and matrix
thus prepared, give them the desired embossing.
Dated this 15th day of July 1880
COMPLETE SPECIFICATION.
Improvements in the Manufacture of Ornamental Plates of Metal
or other Sheets.
I, CÉSAR FELIX Josz of No. 92 Boulevard Leopold II, Brussels in the Kingdom
of Belgium Civil Engineer 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 :-
My Invention relates to means of producing ornamental plates of metal or other
nalleable sheets such as colluloid, papier naché or the like by a process of grounding,
printing, and if desired, embossing, which I carry out as I will describe.
In the first place, in order to vary the surface of the plate and render it suitable for
receiving printed impressions, I render parts of it grounded or frosted, while other
parts of it remain sinooth and polished, in the following manner.
I draw the pattern of the frosted parts on a lithographic stone which I ink with a
varnish ink of an adhesive character. On this I sprinkle hard powder, such as sand,
pulverised glass, emery or the like of various degrees of fineness, according as I wish
the frosting or grounding to be more or less fine. Removing from the stone all the
powder except that which adheres to the inked parts of the design I press the plate on
the stone and thus I obtain the frosting or grounding effeçted desired.
гр.
017

page_text: Afterwards, I print by ordinary printing any desired design on the plate which is
then varnished and dried in a stove.
When it is desired to emboss the plate, I prepare a die and matrix in the following
manner draw on a lithographic stone the design of the parts which are to be in
relief, and I etch out these parts with acid to the desired depth. I then take an
impression of the etched stone on somewhat soft material, such as lead, paper maché
or the like, and having taken this impression, I trim by hand the edges and bodies of
the relief parts of the impression, taking care to give the edges a little slope.
Having thus prepared a die, I glue over the etched stone a sheet of copper foil and
by means of the die I press this sheet causing it to enter the hollows of the etched
stone, but so as to form the counterpart form of the trimmed die. I then, by
pressing the ornamental plates between the die and matrix thus prepared, give them
the desired embossing.
Having now particularly described and ascertained the nature of my said Inven-
tion and in what manner the same is to be performed I declare that what I
claim is -
1. The herein described method of ornamenting plates by grounding or frosting
parts thereof, printing thereon and varnishing and drying the plates substantially as
described.
2. The herein described method of embossing ornamented plates by pressing them
between a die and a matrix prepared substantially as herein described.
3. Ornamental plates of metal or other malleable material manufactured in the
manner described.