A NEW OR IMPROVED METHOD OF HEIGHTENING THE COLOR OF VARIOUS GEMS OR PRECIOUS STONES, AND OF MANUFACTURING ARTIFICIAL GEMS OR STONES
Year: 1872

page_text: LETTERS PATENT to Alphonse Nourick and William Charles Wild,
both of Hatton Garden, in the City of London, for the Invention
of "A NEW OR IMPROVED METHOD OF HEIGHTENING THE COLOR OF VARIOUS
GEMS OR PRECIOUS STONES, AND OF MANUFACTURING ARTIFICIAL GEMS OR
STONES."
Sealed the 26th February 1872, and dated the 3rd January 1872.
PROVISIONAL SPECIFICATION left by the said Alphonse Nourick and
William Charles Wild at the Office of the Commissioners of Patents,
with their Petition, on the 3rd January 1872.
.
WC, ALPHONSE NOURICK and WILLIAM CHARLES WILD, both of
Hatton Garden, in the City of London, do hereby declare the nature
of the said Invention for "A NEW OR IMPROVED METHOD OF HEIGHTENING
THE COLOR OF VARIOUS GEMS OR PRECIOUS STONES, AND OF MANUFACTURING
ARTIFICIAL GEMS OR STONES," to be as follows:-
L
L
Ttion won immun ondoanon the color of precious

page_text: of a stone with a coloring material placed between them to produce a
gem or stone of the desired color. The stone is made in the form
of what is technically known as a "doublet," that is to say, of two
pieces united or cemented together, the surfaces united having been
previously coated with a translucid colored varnish, whereby the desired
tint is imparted to the stone, which may be cut in the ordinary
manner.
We make artificial gems and precious stones of rock crystal in the
same manner, each stone consisting of two pieces of rock crystal united
to form a "doublet," with a suitably colored varnish applied to the
surfaces to be united to give the color desired. In this manner close
imitations of the colored gems and precious stones may be produced,
which may be mounted in open or transparent and other settings.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Alphonse Nourick and William Charles Wild
in the Great Seal Patent Office on the 3rd July 1872.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, ALPHONSE
NOURICK and WILLIAM CHARLES WILD, both of Hatton Garden, in
the City of London, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Third day of January, in the year of
our Lord One thousand eight hundred and seventy-two, in the thirty-
fifth year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto us, the said Alphonse Nourick and William Charles
Wild, Her special licence that we, the said Alphonse Nourick and a
William Charles Wild, our executors, administrators, and assigns, or
such others as we, the said Alphonse Nourick and William Charles
Wild, our 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
"A NEW OR IMPROVED METHOD OF HEIGHTENING THE COLOR OF
VARIOUS GEMS

page_text: OR PRECIOUS STONES, AND OF MANUFACTURING ARTIFICIAL GEMS OR STONES,'
upon the condition (amongst others) that we, the said Alphonse
Nourick and William Charles Wild, our executors or administrators,
by an instrument in writing under our, 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
OR PRECIOUS STONES, AND OF MANUFACTURING ARTIFICIAL GEMS OR STONES,”
upon the condition (amongst others) that we, the said Alphonse
Nourick and William Charles Wild, our executors or administrators,
by an instrument in writing under our, 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 Scal Patent Office within
six calendar months next and immediately after the date of the said
Letters Patent.
NOW KNOW YE, that we, the said Alphonse Nourick and William
Charles Wild, do hereby declare the nature of our said Invention,
and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement, reference
being had to the accompanying Drawing, and to the letters and figures
marked thereon (that is to say) :-
According to our Invention we make an imitation topaz, amethyst, or
aqua marina, or other colored gem of two pieces of rock crystal, united
in the form of what is technically known as a "doublet," with a suitable
coloring matter placed between. Emeralds and other stones have
been made in the form of "doublets" by the aid of other materials and
in another manner, as, for instance, one half crystal and the other half
colored glass, which fails to produce the natural and brilliant effect
obtained by our Invention, and which are well known to jewellers; but
the topaz, amethyst, aqua marina, the pink or Brazilian topaz, and
garnet especially have not been usually made in this way, nor have any
stones been made in doublets according to the peculiar process of our
Invention
Figures 1 and 2 show the two parts of the stone separated, while
Figure 3 shows a finished stone made in the form of a doublet.
a is the front, and 6 is the back piece; both are colorless pieces of
rock crystal. The two flat surfaces a¹, b', to be united must be first
carefully polished. To one only of the said surfaces a¹ or b¹ a coat of
translucid varnish is applied, and to the surface of the other piece gum
mastic is applied, whereby the two pieces arc united.

page_text: Having described the nature of our Invention, and the manner of
performing the same, we declare that what we claim as our Invention
to be protected by the herein-before in part recited Letters Patent is,-
1st. Making an artificial topaz, amethyst, aqua marina, or other
colored gem of two pieces of rock crystal united in the form of a
doublet," with a translucid coloring material applied between, sub-
stantially as herein-before specified.
65
2ndly. We claim improving or heightening the color of natural gems
or precious stones which are deficient in color by making them in two
pieces, that is to say, in the form of "doublets," with a translucid
coloring material applied between them, substantially as herein-before
set forth.
In witness whereof, we, the said Alphonse Nourick and William
Charles Wild, have hereunto set our hands and seals, this
Second day of July, in the year of our Lord One thousand
eight hundred and seventy-two.
A. NOURICK.
(L.S.)
WILL. C. WILD.
(L.S.)