AN IMPROVED METHOD OF PRODUCING RAISED OR SUNKEN DESIGNS ON SHEET METAL
Year: 1875

page_text: LETTERS PATENT to Thomas Henry Rees, of Hexham Villa, New
Barnet, in the County of Hertford, for the Invention of "AN
IMPROVED METHOD OF PRODUCING RAISED OR SUNKEN DESIGNS ON SHEET
METAL."
Sealed the 23rd December 1875, and dated the 3rd September 1875.
PROVISIONAL SPECIFICATION left by the said Thomas Henry Rees
at the Office of the Commissioners of Patents, with his Petition,
on the 3rd September 1875.
I, THOMAS HENRY REES, of Hexham Villa, New Barnet, in the
County of Hertford, do hereby declare the nature of the said Invention
for "AN IMPROVED METHOD OF PRODUCING RAISED OR SUNKEN DESIGNS ON
SHEET METAL," to be as follows:-
My Invention relates to an improved method for the reproduction of
raised or sunken designs on thin sheet metal plates from patterns by
dies and pressure. For this purpose I take the ornamental or other
raised or sunken design which it is desired to reproduce, and place upon

page_text: the same a thin sheet of metal of about the same thickness as the
ornamented sheet metal to be produced. I then by any suitable elastic
or yielding pressure, such as by a hand pad or by soft rollers, force the
sheet metal to assume the configuration of the pattern, thus reproducing
the design in relief on the one side of the sheet metal and in recess on
the other side, the contours of the design being equally sharp on both
sides on account of the thinness of the metal. I then take casts of the
design in metal or other suitable material from each side of the embossed
sheet metal, treated as above described, whereby I obtain a perfect die
and matrix for reproducing the same design by pressure on thin sheet
metal.
The die and matrix may be produced either in a flat or a cylindrical
or curved form from the embossed sheet metal, according as this is
spread out flat or bent into a curved form when taking the casts
therefrom; or the die and matrix may be made of sufficiently thin
metal to allow of their being bent into a curved or cylindrical form after
casting.
The background or sunken portion of the embossed plates produced
as above described may be coloured or varnished at the same time that
the impression is made by applying colour or varnish to the corre-
sponding parts of the die or matrix in a manner well understood.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Thomas Henry Rees in the Great Seal Patent
Office on the 1st March 1876.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, THOMAS
HENRY REES, of Hexham Villa, New Barnet, in the County of Hertford,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Third day of September, in the year
of our Lord One thousand eight hundred and seventy-five, in the
thirty-ninth year of Her reign, did, for Herself, Her heirs and suc-
cessors, give and grant unto me, the said Thomas Henry Rees, Her
special license that I, the said Thomas Henry Rees, my executors,
administrators, and assigns, or such others as I, the said Thomas

page_text: Henry Rees, my executors, administrators, and assigns, should at any
time agree with and no others, from time to time and at all times.
thereafter during the term therein expressed, should and lawfully
might make, use, exercise, and vend, within the United Kingdom
of Great Britain and Ireland, the Channel Islands, and Isle of Man,
an Invention for "AN IMPROVED METHOD OF PRODUCING RAISED OR SUNKEN
DESIGNS ON SHEET METAL," upon the condition (amongst others) that I,
the said Thomas Henry Rees, my executors or administrators, by an
instrument in writing under my, or their, or one of their hands and
seals, should particularly describe and ascertain the nature of the said
Invention, and in what manner the same was to be performed, and
cause the same to be filed in the Great Seal Patent Office within six
calendar months next and immediately after the date of the said
Letters Patent.
NOW KNOW YE, that I, the said Thomas Henry Rees, do hereby
declare the nature of the said Invention, and in what manner the
same is to be performed, to be particularly described and ascertained
in and by the following statement thereof, that is to say :-
My Invention relates to an improved method for the reproduction of
raised or sunken designs on thin sheet metal plates from patterns by
dies and pressure. For this purpose I take the ornamental or other
raised or sunken design which it is desired to reproduce, and place upon
the same a thin sheet of metal of about the same thickness as the
ornamental sheet metal to be produced. I then by any suitable elastic
or yielding pressure, such as by a hand pad or by soft rollers, force the
sheet metal to assume the configuration of the pattern, thus reproducing
the design in relief on the one side of the sheet metal and in recess on
the other side, the contours of the design being equally sharp on both
sides on account of the thinness of the metal. I then take casts of the
design in metal or other suitable material from each side of the
embossed sheet metal treated as above described, whereby I obtain a
perfect die and matrix for reproducing the same design by pressure on
thin sheet metal.
The die and matrix may be produced either in a flat or a cylindrical
or curved form from the embossed sheet metal, according as this is
spread out flat or bent into a curved form when taking the casts there-
from; or the die and matrix may be made of sufficiently thin metal to
allow of their being bent into a curved or cylindrical form after casting.

page_text: The background or sunken portion of the embossed plates produced
as above described may be coloured or varnished at the same time that
the impression is made by applying colour or varnish to the corrc-
sponding parts of the dic or matrix in a manner well understood.
Having thus described the nature of my Invention and in what
manner the same is to be performed, I claim the herein-described
method of producing raised or sunken designus on sheet metal by first
taking an impression of the design to be reproduced on a thin sheet of
metal, and then taking casts of each side of the sheet of metal so
prepared, which casts serve as die and matrix for reproducing the design
by pressure on sheet metal.
In witness whereof, I, the said Thomas Henry Rees, have here-
unto set my hand and seal, this Twenty-sixth day of February,
in the year of our Lord One thousand cight hundred and seventy-
six.
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