IMPROVEMENTS IN ELECTRO-GILDING
Year: 1864

page_text: LETTERS PATENT to Siegmund Moore, of Liverpool Street, Bishopsgate
Street, in the City of London, for the Invention of "IMPROVEMENTS IN
ELECTRO-GILDING."
Sealed the 10th February 1865, and dated the 15th August 1864.
PROVISIONAL SPECIFICATION left by the said Siegmund Moore at the
Office of the Commissioners of Patents, with his Petition, on the 15th
August 1864.
I, SIEGMUND MOORE, of Liverpool Street, Bishopsgate Street, in the City of
London, do hereby declare the nature of the said Invention for "IMPROVE-
MENTS IN ELECTRC-GILDING," to be as follows:-
This Invention relates to certain improvements in the method of electro-
gilding, whereby a more rapid, durable, and richly colored deposit of gold is
obtained than by the ordinary means.
I propose to effect those results by the use of an entirely new solution, and
by a simple and inexpensive arrangement of battery; strong battery power

page_text: not being required in coujunction with such solution. The solution is com-
posed as follows:-
Prussiate of potash
Pearl potash
lodide of potash
Carbonate of soda
Cyanide of copper
Cyanide of silver
about 1 lb.
"
2 ounces.
1
"
"
1
29
"
"
30 grains.
"
8",
"
1 ounces.
3 quarts.
Fine gold
Water
I do not limit myself to these proportions, but I find them to be the most
suitable to the purpose.
I apply a battery of which the conductor is a zinc plate with a copper wire
attached thereto, the other end being connected to the article to be gilt in the
bath, the zinc plate being suspended in the solution; this form of battery will
be found sufficiently strong to cause the decomposition and deposition of the
gold upon the article, and the results first stated will thereby be accomplished;
but, if thought more convenient, an independent or separate battery may be
employed.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Siegmund Moore in the Great Seal Patent Office on the
15th February 1865.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, SIEGMUND
MOORE, of Liverpool Street, Bishopsgate Street, in the City of London, send
groeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Fifteenth day of August, in the year of our Lord
One thousand eight hundred and sixty-four, in the twenty-eighth year of Her
reign, did, for Herself, Iler heirs and successors, give and grant unto me,
the said Siegmund Moore, Her special licence that I, the said Siegmund Moore,
my executors, administrators, and assigns, or such others as I, the said
Siegmund Moore, 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, usc,

page_text: I claim as my Invention the gold solution substantially as herein specified,
by the use of which, aided by the battery, I am enabled to effect improvements
in electro-gilding.
In witness whereof, I, the said Siegmund Moore, have hereunto set my
hand and seal, this Fourteenth day of February, in the year of our
Lord One thousand eight hundred and sixty-five.
Witness,
ALEX. PRINCE,
Office for Patents,
4, Trafalgar Square,
Charing Cross.
SIEGMUND MOORE. (L.B.)