CERTAIN IMPROVEMENTS IN ALLOYS OF METAL AND OF OTHER SUBSTANCES, AND ALSO IN THE APPLICATION OF THE SAME TO VARIOUS USEFUL PURPOSES
Year: 1853

page_text: LETTERS PATENT to André Michel Massonnet, of Paris, in the
Empire of France, and of 16, Castle Street, Holborn (City),
London, for the Invention of "CERTAIN IMPROVEMENTS IN ALLOYS
OF METAL AND OF OTHER SUBSTANCES, AND ALSO IN THE APPLICATION
OF THE SAME TO VARIOUS USEFUL PURPOSES."
Sealed the 5th August 1853, and dated the 5th February 1853.
PROVISIONAL SPECIFICATION left by the said André Michel
Massonnet at the Office of the Commissioners of Patents, with
his Petition, on the 5th February 1853.
I, ANDRÉ MICHEL MASSONNET, of Paris, in the Empire of France,
and of 16, Castle Street, Holborn, (City,) London, do hereby declare
the nature of the said Invention for "CERTAIN IMPROVEMENTS
ALLOYS OF METAL AND OF OTHER SUBSTANCES, AND ALSO IN THE APPLICATION
OF THE SAME TO VARIOUS USEFUL PURPOSES," to-be as follows, viz.: -
My metallic alloy consists of the following substances:

page_text: 1st, Copper dust or filings
2nd, Burnt calamine or zinc
3rd, Bitartrate of potash -
4th, Hydrochlorate of ammonia
5th, Quick lime.-
about 5 ounces.
"
12
"
10
"
"
5
"
1
These substances are placed in a mortar over a furnace, and
gradually heated for five or six hours till they become liquid, after
which the mixture is poured into a mould, and is thus made into
an ingot, which may be afterwards mixed with pure copper in a
state of fusion, or with silver in a suitable degree, so as to imitate
gold of eighteen, twenty, or twenty-two carats.
-
An inferior quality may be made thus: A mixture is made of
calcinated tartar, in the proportion of about four pounds, peroxide
of zinc two pounds, hydrochlorate of ammonia about two ounces
and a half. These being in powder, are thrown on twenty pounds
of copper in a state of fusion, and well mixed with it; after which,
six pounds or more of zinc are thrown in and melted with the
compound.
Note "The hydrochlorate of ammonta
may he replaced by
SPECIFICATION in pursuance of the conditions of the Letters.
Patent, filed by the said André Michel Massonnet in the Great
Seal Patent Office on the 5th August 1853.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I,
ANDRÉ MICHEL MASSONNET, of Paris, in the Empire of France, and of
16, Castle Street, Holborn, (City,) London, send greeting..
WHEREAS Her most Excellent. Majesty Queen Victoria, by Her
Letters Patent, bearing date the Fifth day of February, in the
year of our Lord. One thousand eight hundred and fifty-three,
in the sixteenth year of Her reign, did, for Herself, Her heirs and
successors, give and grant unto me, the said André Michel
Massonnet, Her special licence that I, the said André Michel

page_text: Massonnet, my executors, administrators, and assigns, or such
others as I, the said André Michel Massonnet, my executors, admi-
nistrators, 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
"CERTAIN IMPROVEMENTS IN ALLOYS OF METAL AND OF OTHER SUBSTANCES
AND ALSO IN THE APPLICATION OF THE SAME TO VARIOUS USEFUL PURPOSES,"
upon the condition (amongst others) that I, the said André Michel
Massonnet, 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 Patent.
NOW KNOW YE, that I, the said André Michel Massonnet, do
hereby declare the nature of my said Invention, and in what manner
the same is to be performed, to be particularly described and
ascertained in and by the following statement, that is to say:
My metallic alloy consists of the following substances:
First, copper dust or filings, about 5 ounces; burnt calamine
or zinc, about 12 ounces; bitartrate of potash, about 10 ounces;
hydrochlorate of ammonia, about 5 ounces; quick lime, about one
ounce and a quarter.
These substances are placed in a mortar over a furnace, and
gradually heated for five or six hours till they become liquid, after
which the mixture is poured into a mould, and is thus made
into an ignot, which may be afterwards mixed with pure copper in
a state of fusion, or with silver in a suitable degree, so as to imitate
gold of eighteen, twenty, or twenty-two carats.
An inferior quality may thus be made: A mixture is made of
calcinated tartar, in the proportion of about four pounds, peroxide
of zinc two pounds, hydrochlorate of ammonia about two ounces
and a half. These being in powder are thrown on twenty pounds

page_text: of copper in a state of fusion, and well mixed with it; after which,
six pounds or more of zinc are thrown in and melted with the
compound.
Note. The hydrochlorate of ammonia may be replaced by
nitrate of potash.
In witness whereof, I, the said André Michel Massonnet, have
hereunto set my hand and seal, the First day of August,
in the year of our Lord One thousand eight hundred and
fifty-three.