AN IMPROVED VARNISH FOR PROTECTING AND PRESERVING METALS, SUCH AS POLISHED STEEL, SILVER PLATE, SILVER-PLATED AND ELECTRO- PLATED ARTICLES FROM OXYDATION, CORROSION, AND FROM THE EFFECTS OF DAMP OR THE ACTION OF SULPHURETTED HYDROGEN, AND IMPROVED LIQUIDS. FOR CLEANING AND BRIGHTENING SAID ARTICLES
Year: 1864

page_text: LETTERS PATENT to Henry Alfred de Briou, jun, Clerk, of No. 35,
Welbeck Street, Cavendish Square, in the County of Middlesex, for the
Invention of "AN IMPROVED VARNISH FOR PROTECTING AND PRESERVING
METALS, SUCH AS POLISHED STEEL, SILVER PLATE, SILVER-PLATED AND ELECTRO-
PLATED ARTICLES FROM OXYDATION, CORROSION, AND FROM THE EFFECTS OF
DAMP OR THE ACTION OF SULPHURETTED HYDROGEN, AND IMPROVED LIQUIDS.
FOR CLEANING AND BRIGHTENING SAID ARTICLES."
Sealed the 16th June 1865, and dated the 21st December 1864.
PROVISIONAL SPECIFICATION left by the said Henry Alfred de Briou
at the Office of the Commissioners of Patents, with his Petition, on
the 21st December 1864.
I, HENRY ALFRED DE BRIOU, jun"., Clerk, of No. 35, Welbeck Street,
Cavendish Square, in the County of Middlesex, do hereby declare the nature
of the said Invention for "AN IMPROVED VARNISH FOR PROTECTING AND PRE-
SERVING METALS, SUCH AS POLISHED STEEL, SILVER PLATE, SILVER-PLATED AND
ELECTRO-PLATED ARTICLES FROM OXYDATION, CORROSION, AND FROM THE EFFECTS OF
DAMP OR THE ACTION OF SULPHURETTED HYDROGEN, AND IMPROVED LIQUIDS FOR
CLEANING AND BRIGHTENING SAID ARTICLES," to be as follows:-
My Invention consists in the use of a varnish composed of-
Gum benzoin
45 ounces.
11-

page_text: is spread over the surfaces to be protected by means of a flat camel's-hair
pencil or brush, and left to dry. The varnish is applied cold.
To remove the varnish I use a liquid composed of collodion, 4 parts;
alcohol, 1 part; and to wash the collodion off and clean the metals I use a
liquid composed of alcohol, 18 parts; and ether, 2 parts; the surface is then 5
dried with soft linen or carded cotton.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Henry Alfred de Briou in the Great Seal Patent Office
on the 21st June 1865.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, HENRY
ALFRED DE BRIOU, junior, Clerk, of No. 85, Welbeck Street, Cavendish
Square, in the County of Middlesex, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-first day of December, in the year of our
Lord One thousand eight hundred and sixty-four, in the twenty-eighth year
of Her reign, did, for Herself, Her heirs and successors, give and grant
unto me, the said Henry Alfred de Briou, Her special licence that I, the
said Henry Alfred de Briou, my executors, administrators, and assigns, or
such others as I, the said Henry Alfred de Briou, my executors, adminis-
trators, 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 VARNISH FOR PROTECTING AND PRESERVING
METALS, SUCH AS POLISHED STEEL, SILVER PLATE, SILVER-PLATED AND ELECTRO-
PLATED ARTICLES FROM OXYDATION, CORROSION, AND FROM THE EFFECTS OF DAMP OR
THE ACTION OF SULPHURETTED HYDROGEN, AND IMPROVED LIQUIDS FOR CLEANING
AND BRIGHTENING SAID ARTICLES," upon the condition (amongst others) that
J, the said Henry Alfred de Briou, 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 Henry Alfred de Alfred de Briou, do
hereby declare the nature of my said Invention, and in what manner the

page_text: same is to be performed, to be particularly described and ascertained in
and by the following statement:-
My Invention consists in the use of a varnish composed of―
Gum benzoin
Alcohol or methylated spirit
45 ounces.
1 gallon.
The gum is dissolved by a slow heat and filtered. A coating of this varnish is
spread over the surfaces to be protected by means of a flat camel's-hair pencil
or brush, and left to dry. The varnish is applied cold.
To remove the varnish I use a liquid composed of collodian, four parts;
alcohol, one part; and to wash the collodion off and clean the metals I use a
liquid composed of alcohol, eighteen parts, and ether two parts; the surface
is then dried with soft linen or carded cotton.
Having thus described the nature of my Invention, I desire it to be under-
stood that I do not confine or limit myself to the precise gredient or quantities
herein-before set forth, as they may be modified as circumstances may require;
but what I claim is, the mode or method of protecting and preserving metals
such as polished steel, silver plate, silver-plated and electro-plated articles
from oxydation, corrosion, and from the effects of damp, or the action of
sulphuretted hydrogen, and for cleaning and brightening said articles, by the
means substantially as herein-before described, or any mere modification
thereof.
In witness whereof, I, the said Henry Alfred de Briou, junior, have
hereunto set my hand and seal, this Twenty-first day of June, in the
year of our Lord One thousand eight hundred and sixty-five.
HENRY ALFRED DE BRIOU, JUN“. (L.S.)