A NEW METALLIC ALLOY
Year: 1856

page_text: LETTERS PATENT to Georges Toucas, of 39, Rue de l'Echiquier, Paris,
in the Empire of France, and of 4, South Street, Finsbury, London,
Metallurgist. for the Invention of "A NEW METALLIC ALLOY."
Sealed the 1st August 1856, and dated the 22nd February 1856.
PROVISIONAL SPECIFICATION left by the said Georges Toucas .at tho
Office of the Commissioners of Patents, with his Petition, on the
22nd February 1856.
I, GEORGES TOUCAS, of 39, Rue de l'Echiquier, Paris, in the Empire of
France, and of 4, South Street, Finsbury, London, Metallurgist, do hereby
declare the nature of my said Invention for "A NEW METALLIC ALLOY," to be
as follows. that is to say:-

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Georges. Toucas in the Great Seal Patent Office on the
20th August 1856.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, GEORGES
TOUCAS, of 39, Rue de l'Echiquier, Paris, in the Empire of France, and of
4, South Street, Finsbury, London, Metallurgist, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing-date the Twenty-second day of February, in the year of our Lord
One thousand eight hundred and fifty-six, in the nineteenth year of Her reign,
did, for Herself, Her heirs and successors, give and grant unto me, the
said Georges Toucas, Her special license that I, the said Georges Toucas, my
executors, administrators, and assigns, or such others as I, the said Georges
Toucas, 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 "A NEW METALLIC ALLOY, "upon the condition
(amongst others) that I, the said Georges. Toucas, by an instrument in writing.
under my hand and seal, 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
Pátent. .:
:.
NOW KNOW YE, that I, the said Georges Toucas, do hereby declare the
nature of my said Invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement thereof, that is to say:-
This Invention consists in the combination of the following metals in certain
proportions for the manufacture of a metallic alloy resembling silver, and
which I term Toucas' silver.
The alloy, is composed of nickel, four parts; copper, five parts; tin, lead,
zinc, iron, and antimony, of each one part.. These metals are placed in a
crucible or other suitable vessel, and melted over a fire. The metallic alloy
can be afterwards rolled into sheets by the ordinary means; it is nearly of the
colour of silver, and possesses similar properties for working; it is very hard,
malleable, and can receive a very fine polish; it possesses the brightness of
platinum, and may be silvered or not by the usual process. It may be employed

page_text: in the manufacture of jewellery, goldsmiths' work, medallion, and harness
fittings, &c. For working under the hammer the alloy must consist of the
above proportions, but in the casting of articles of art the proportions of zinc
may be increased, in order to give more fluidity to the metal. Its colour then
still more resembles silver.
Having now described the nature of my said Invention, and in what manner
the same is to be performed, I would have it understood that what I claim is,
the peculiar combination of metals, as herein-before described, for the produc-
tion of a metallic alloy resembling and having nearly the same properties as
silver.
In witness whereof, I, the said Georges Toucas, have hereunto set my
hand and seal, this Eighteenth day of August, in the year of our
Lord One thousand eight hundred and fifty-six.
GEORGES TOUCAS. (L.S.)