AN IMPROVEMENT IN THE TREATMENT OF TAR AND OTHER SUBSTANCES SUITABLE TO BE USED IN THE MANUFACTURE OF PAINT, AND FOR OTHER PURPOSES
Year: 1865

page_text: LETTERS PATENT to John | Moule, Manufacturing Chemist, of No. 391,
Hackney Road, in the County of Middlesex, for the Invention of
"AN IMPROVEMENT IN THE TREATMENT OF TAR AND OTHER SUBSTANCES
SUITABLE TO BE USED IN THE MANUFACTURE OF PAINT, AND FOR OTHER
PURPOSES."
Sealed the 30th January 1866, and dated the 25th August 1865,
PROVISIONAL SPECIFICATION left by the said John Moule at the
Office of the Commissioners of Patents, with his Petition, on the 25th
August 1865.
I, JOHN MOULE, Manufacturing Chemist, of No. 391, Hackney Road, in
the County of Middlesex, do hereby declare the nature of the said Invention
for "AN IMPROVEMENT IN THE TREATMENT OF TAR AND OTHER SUBSTANCES SUITABLE
TO BE USED IN THE MANUFACTURE OF PAINT, AND FOR OTHER PURPOSES," to be as
follows:-
The said Invention consists in the use of substances which by proper com-
bination form a liquid suitable to supply the place of oil, turpentine, and other
liquids generally used in the manufacture of paint.
My Invention consists in the use of Stockholm tar in combination with
gums and resins dissolved in some suitable solvent, such as ether, alcohol,
pyroxylic spirit, or wood naptha, methylated alcohol, and other distillates, the
product of vinous fermentation, as follows:-
To 100 parts by weight of methylated alcohol I add 40 parts of gum
sandarac, or a similar proportion of other suitable gums or resins, and
allow them to dissolve, aiding the solution by a suitable agitation; to this
solution I mix by agitation 40 to 60 parts of good Stockholm tar. This forms

page_text: the liquid which may be used as varnish, and also for mixing with the colour-
ing substances, producing a good and durable paint well adapted for coating
iron where exposed to damp.
Although I have given the above proportions of gum sandarac, Stockholm
tar, and methylated alcohol, I do not intend to confine myself precisely to
them, as the proportions may be greatly varied for the purpose of adapting it
to the various kinds of paint required. As also the solution of other gums and
resins in place of the above singly and in combination, as are found to be
suitable, such as seed lack, Venice turpentine, shell-lac, resin; mastic, gum
damma, copal, lac, benzoin, and other gums and resins which are found readily
to dissolve in liquid hydrocarbons or in any of the above-mentioned liquids,
and which will enter into combination with Stockholm tar.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said John Moule in, the Great Seal Patent Office on the 20th
February 1866.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
MOULE, Manufacturing Chemist, of No. 391, Hackney Road, in the County
of Middlesex, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-fifth day of August, in the year of our Lord
One thousand eight hundred and sixty-five, in the twenty-ninth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me,
the said John Moule, Her special licence that I, the said John Moule,
my executors, administrators, and assigns, or such others as 1, the said John'
Moule, 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 IMPROVEMENT IN THE TREATMENT
OF TAR AND OTHER SUBSTANCES SUITABLE TO BE USED IN THE MANUFACTURE OF PAINT,
AND FOR OTHER PURPOSES," upon the condition (amongst others), that I, the
said John Moule, 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.

page_text: NOW KNOW YE, that I, the said John Monle, 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, to be as follows:-
The said Invention consists in the use of substances which by proper com-
bination form a liquid suitable to supply 'the place of oil, turpentine, and other
liquids generally used in the manufacture of paint.
My Invention consists in the use of Stockholm tar in combination with
gums and resins dissolved in some suitable solvents, such as ether, alcohol;
pyroxylic spirit, or wood naptha, mythylated alcohol, and other distillates, the
product of vinous fermentation, as follows:-
To 100 parts by weight of methylated alcohol I add 40 parts of gum
saudarac, or a similar proportion of other suitable gums or resins, and allow
them to dissolve, aiding the solution by a suitable agitation; to this solution
I mix by agitation 40 to 60 parts of good Stockholm tar; this forms the liquid
for mixing with the colouring substance, producing a good and durable paint
well adapted for coating iron where exposed to damp.
Although I have given the above preportions of gum sandarac, Stockholm
tar, and methylated alcohol, I do not intend to limit myself precisely to them,
as the proportions may be greatly varied for the purpose of adapting it to the
various kinds of paint required; as also the solution of other gums and resins
in place of the above singly and in combination as are found to be suitable,
such as seedlac, Venice turpentine, shell-lac, resin, mastic, gum damma, copal,
lac, benzoin, and other gums and resins which are found readily to dissolve in
liquid hydrocarbons or in any of the above-mentioned liquids, and which will
enter into combination with Stockholm tar.
In witness whereof, I, the said John Moule, have hereunto set my hand
and seal, this 20th day of February, in the year of our Lord
Signed in the presence of
and witnessed by
W. H. IBBETT,
19, St. Martin's-le-Grand, E.C.
JOHN MOULE. (L.S.)