AN IMPROVED PAINT
Year: 1857

page_text: Sealed the 17th July 1857, and dated the 17th January 1857.
PROVISIONAL SPECIFICATION left by the said Charles Fréderic Vasserot-
at the Office of the Commissioners of Patents, with his Petition, on:
the 17th January 1857.
I, CHARLES FREDERIC VASSEROT, of the firm Wells and Vasserot, of 45,
Essex Street, Strand, London, Patent Agents, Mechanical Draughtsmen, &c.,
do hereby declare the nature of the said Invention for "AN IMPROVED PAINT," "
a communication from Louis Kaercher and François Perrin, of Marseilles,
France, to be as follows:-
This new paint consists in pyrites or sulphides mixed in certain proportions
with vegetable or mineral varnishes. The pyrites or sulphides not being
liable to oxydisation, form consequently a paint resisting the action of salt
water & of the atmosphere.
The minerals employed for this object are reduced into impalpable powder,
& then mixed with the varnishes or with the siccative oils, either vegetable
or mineral.

page_text: I obtain the mineral varnish by melting in equal quantities the pitch with
the siccative oil produced by the distillation of the coal tar. The paint, which
I call "non-oxyd bronze," is specially adapted for ships. It may be applied
either on wood or iron, as well as on zinc or copper sheathings. It is composed
of 50 per cent. of sulphides, reduced into impalpable powder, & 50 per cent.
of mineral varnish.
The 50 per cent. of sulphides are composed as follows:-
42 parts of sulphuret of iron,
5. do.
3 do.
do.
of copper,
do.
of arsenic (orpiment).
The paint to be used for buildings or other constructions is composed of,-
50 parts of sulphuret of iron, and
50 do. of mineral varnish.
The mixture of the paint is made in recipients, in which the substances
are stired by means of an iron rod or a shovel until they are intimately
amalgamated, which is accomplished in about two or three months. Care
must be taken to stir often the mixture.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Charles Fréderic Vasserot in the Great Seal Patent Office
on the 17th July 185.7.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, CHARLES
FREDERIC VASSEROT, of the firm Wells and Vasserot, of 45, Essex Street,
Strand, London, Patent Agents, Mechanical Draughtsmen, &c., send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Seventeenth day of January, in the year of our Lord
One thousand eight hundred and fifty-seven, in the twentieth year of Her reign,
did, for Herself, Her heirs and successors, give and grant unto me, the said
Charles Frederic Vasserot, Her special licence that I, the said Charles
Frederic Vasserot, my executors, administrators, and assigns, or such others
as I, the said Charles Frederic Vasserot, 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 "AN IMPROVED PAINT," (a communication from Louis Kaercher
and François Perrin, of Marseilles, France,) upon the condition (amongst

page_text: others) that I, the said Charles Frederic Vasserot, my executors or adminis-"
trators, 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 sanie 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 Charles Frederic Vasserot, do hereby.
declare the nature of the said Invention, and in what manner the same is
to be performed, to be particularly described and ascertained in and by the
following statement:-
This paint, which I call "non-oxyd bronze," is composed of pyrites or
sulphides, mixed in certain proportions with vegetable and mineral varnishes.
The pyrites or sulphides not being liable to oxydation, form consequently a
paint resisting the action of sea water and atmosphere. The minerals
employed for this object are reduced into an impalpable powder, and then
mixed with varnishes or siccative oils, either vegetable or mineral. I obtain
the mineral varnish by melting in equal quantities the pitch with the siccative
oil obtained by the distillation of the coal tar.
The paint specially adapted for ships, and which may be applied on wood
or iron, as well as on copper, zinc, or sheet-iron sheathings, is composed of
50 per cent. of sulphides, reduced into in impalpable powder, & 50 per cent.
of mineral varnish.
The 50 per cent. of sulphides are composed as follows:-42 parts of sulphuret
of iron, 5 parts of sulphuret of copper, 3 parts of sulphuret of arsenic
(orpiment).
By giving several coats of this paint on the hull of a ship, a thick metallic
envelope will be formed of such a solidity that any sheathings will be found
unnecessary. This paint will resist the action of sea water, and prevent the
molluscas or other sea insects from clinging to the bull of the vessel, thereby
facilitating greatly its propulsion. When sheathings will be made use of,
a thinner coat of the paint will be applied on them than in the preceding
case, and as the paint has for object to preserve from oxydation the ma-
terials on which it is applied, sheathings of sheet iron or zinc will be found
as durable as the copper ones hitherto in use. The paint applied on copper
sheathings will greatly preserve them, and likewise prevent the molluscas or
other animalcula from clinging on their surface. The same advantage will
be obtained by applying it on iron steam boats.
The paint to be used for buildings or other large constructions is composed

page_text: of, 50 per cent. of sulphuret of iron, reduced into an impalpable powder &
50 per cent. of mineral varnish.
The mixture of the paint with the mineral varnishes is made in recipients,
in which the substances, are stired by means of an iron rod or shovel until
they are intimately amalgamated, which takes place in about 2 or 3 months.
Care must be taken to stir often the mixture.
The paint which I combine with siccative linseed oil and vegetable varnishes
is more specially adapted for painting railings, iron doors, street lamp posts,
or any other object exposed to the rain and to the influence of the atmosphere.
It is composed of, 73 per cent. of sulphuret of iron, reduced into an impalpable
powder, & 25 per cent. of siccative linseed oil.
Vegetable varnishes may be added at will to this paint..
Having thus, described the nature of the said Invention, and the manner
in which the same is or may be carried into effect, I wish it to be distinctly
understood that I do not confine myself to the precise proportions of the
ingredients which compose the "non-oxyd bronze," since they may vary
indifinitely; but what I claim as my Invention, and desire to secure by the
present in part recited Letters Patent, is, any paint in which the pyrites or
sulphides enter either as a principal or accessory, whatsoever be the proportions
employed.
In witness whereof, I, the said Charles Fréderic Vasserot, have hereunto
set my hand and seal, this Seventeenth day of July, in the year of
our Lord One thousand eight hundred and fifty-seven.
CH FRED VASSEROT. (L.S.)