AN IMPROVED COMPOSITION FOR PROTECTING AND PRESERVING METALS, SUCH AS IRON, COPPER, AND ZINC, USED IN THE CON- STRUCTION OF SHIPS, OR IN THE PROTECTION OF THEIR SIDES AND BOTTOMS FROM OXYDATION AND CORROSION FROM THE ACTION OF SEA WATER; AND POR PROTECTING FROM CORROSION ALL SUBMERGED SUBSTANCES, SUCH AS CHAINS, ANCHORS, CABLES, AND EVERY OXYDABLE METAL SUBMERGED IN WATER, OR EXPOSED TO ATMOSPHERIC INFLUENCES
Year: 1864

page_text: sex, for the Invention of "AN IMPROVED COMPOSITION FOR PROTECTING AND
PRESERVING METALS, SUCH AS IRON, COPPER, AND ZINC, USED IN THE CON-
STRUCTION OF SHIPS, OR IN THE PROTECTION OF THEIR SIDES AND BOTTOMS
FROM OXYDATION AND CORROSION FROM THE ACTION OF SEA WATER; AND POR
PROTECTING FROM CORROSION ALL SUBMERGED SUBSTANCES, SUCH AS CHAINS,
ANCHORS, CABLES, AND EVERY OXYDABLE METAL SUBMERGED IN WATER, OR
EXPOSED TO ATMOSPHERIC INFLUENCES."
Sealed the 3rd January 1865, and dated the 19th July 1864.
PROVISIONAL SPECIFICATION left by the said Henry Edward Francis
de Briou at the Office of the Commissioners of Patents, with his
Petition, on the 19th July 1864.
I, HENRY EDWARD FRANCIS DE BRIOU, Doctor of Medicine, of No. 35,
Welbeck Street, Cavendish Square, in the County of Middlesex, do hereby
declare the nature of the said Invention for "AN IMPROVED COMPOSITION FOR
PROTECTING AND PRESERVING METALS, SUCH AS IRON, COPPER, AND ZINC, USED IN
THE CONSTRUCTION OF SHIPS, OR IN THE PROTECTION OF THEIR SIDES AND BOTTOMS
FROM OXYDATION AND CORROSION FROM THE ACTION OF SEA WATER; AND FOR PRO-
TECTING FROM CORROSION ALL SUBMERGED SUBSTANCES, SUCH AS CHAINS, ANCHORS,
CABLES, AND EVERY OXYDABLE METAL SUBMERGED IN WATER OR EXPOSED TO
ATMOSPHERIC INFLUENCES," to be as follows:-
It is a composition consisting of vulcanized india-rubber three parts, and
tar one part

page_text: It is prepared by putting the above-mentioned substances in a copper vessel
and applying heat underneath until the vulcanized india-rubber and the tar
are melted & properly amalgamated, when the fire must be removed.
When the composition is to be used it must be placed on a slow fire gently
moved to prevent its adhering to the sides of the vessel, and then spread over
the surface to be protected or preserved from oxydation by means of a common
brush or a metallic or wooden spatula. A drying varnish can then be spread
over.
SPECIFICATION in pursuance of the conditions of the Letters Patent, 'filed
by the said Henry Edward Francis de Briou in the Great Seal Patent
Office on the 18th January 1865.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, HENRY
EDWARD FRANCIS DE BRIOU, Doctor of Medicine, of No. 35, 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 Nineteenth day of July, 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 Edward Francis de Briou, Her special licence that I, the said Henry
Edward Francis de Briou, my executors, administrators, and assigns, or such
others as I, the said Henry Edward Francis 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 In-
vention for "AN IMPROVED COMPOSITION FOR PROTECTING AND PRESERVING METALS,
SUCH AS IRON, COPPER, AND ZINC, USED IN THE CONSTRUCTION OF SHIPS, OR IN THE
PROTECTION OF THEIR SIDES AND BOTTOMS FROM OXYDATION AND CORROSION FROM THE
ACTION OF THE SEA WATER; AND FOR PROTECTING FROM CORROSION ALL SUBMERGED
SUBSTANCES, SUCH AS CHAINS, ANCHORS, CABLES, AND EVERY OXYDABLE METAL SUB-
MERGED IN WATER OR EXPOSED TO ATMOSPHERIC INFLUENCES," upon the condition
(amongst others) that I, the said Henry Edward Francis de Briou, my exe-
cutors 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 per-
formed, and cause the same to be filed in the Great Seal Patent Office within

page_text: six calendar months next and immediately after the date of the said Letters
Patent.
NOW KNOW YE, that I, the said Henry Edward Francis de Briou, 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 :-
My Invention consists in coating the metals, iron, copper, zinc, the ships'
sides and bottoms, and all surfaces or objects to be protected with an improved
composition formed of
Vulcanised india-rubber
Mineral pitch
750 parts.
250 parts.
The india-rubber cut into small pieces is thrown into a copper cauldron,
placed upon a slow fire and heated until it is melted; all the time it must be
stirred up, then the mineral pitch is added and melted; the mixture must be
stirred up for some time until the two substances are thoroughly mixed
together, and left boiling for two or three hours; then the fire is put out.
Before it cools down, the composition is poured into barrels, copper, iron, or
other vessels, and kept ready for use.
To apply it, the requisite quantity put into a copper vessel is placed upon a
slow fire, melted again and spread over the surfaces to be protected by means
of a vegetable brush; and then to spread it smoothly and uniformly upon the
surfaces, a lighted torch of reeds, such as used in melting tar, is held close to
it, which makes it run and gives it a smooth surface.
And having now described the nature of my said Invention, and in what
manner the same is to be performed, I wish it to be understood that I do not
limit myself to the particular proportions herein-before stated of the ingredients
of my composition, and that I claim the composition formed, substantially as
herein-before described, for protecting and preserving metals, such as iron,
copper, and zinc, used in the construction of ships, or in the protection of
their sides and bottoms from oxydation and corrosion from the action of the
sea water, and for protecting from corrosion all submerged substances, and every
oxydable metal submerged in water or exposed to atmospheric influences.
In witness whereof, I, the said Henry Edward Francis de Briou, have
hereunto set my hand and seal, this Eighteenth day of January, in
the year of our Lord One thousand eight hundred and sixty-five.
HY. DE BRIOU. (L.S.)