IM- PROVEMENTS IN THE PREPARATION OF RED COLORING MATTERS OR DYES
Year: 1859

page_text: LETTERS PATENT to Richard Archibald Brooman, of 166, Fleet Street,
in the City of London, E.C., Patent Agent, for the Invention of "IM-
PROVEMENTS IN THE PREPARATION OF RED COLORING MATTERS OR DYES." -A
communication from abroad by Messieurs Renard, Frères, of Lyons.
Sealed the 25th May 1860, and dated the 28th November 1859.
PROVISIONAL SPECIFICATION left by the said Richard Archibald
Brooman at the Office of the Commissioners of Patents, with his Petition,
on the 28th November 1859.
I, RICHARD ARCHIBALD BROOMAN, of 166, Fleet Street, in the City of
London, E.C., Patent Agent, do hereby declare the nature of the said
Invention for "IMPROVEMENTS IN THE PREPARATION OF RED COLORING MATTERS OR
DYES," (communicated to me from abroad by Messieurs Renard, Frères, of
Lyons,) to be as follows:-
I obtain red coloring matters by heating to boiling point aniline, toluidine,
cumidine, or xylidine with one of the following salts, which should be used in
a solid state sulphates of tin, sulphates of mercury, bi-fluoride of tin, bi-
fluoride of mercury, nitrate of uranium, nitrate of peroxide of iron, nitrate
of silver, sulphate of silver, bi-chloride of titanium, bi-bromure of mercury,
bi-bromure of tin, iodides of tin, chlorides of uranium, bromate of mercury.
The matter obtained is thinned down (épuisée) with water if a concentrated
solution be not desired. If a concentrated solution is sought, the matter is
treated with alcohol, wood spirit, or acetic acid. The color becomes fixed

page_text: upon silk and wool without a mordant, or with ordinary mordants, mineral
acids excepted, but for being fixed on cotton it is necessary that the cotton be
first albuminised or prepared with the oily preparation used for dyeing it
Turkey red.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Richard Archibald Brooman in the Great Seal Patent Office
on the 28th May 1860.
TO ALL TO WHOM THESE. PRESENTS SHALL COME, I, RICHARD
ARCHIBALD BROOMAN, of 166, Fleet Street, in the City of London, E.C.,
Patent Agent, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-eighth day of November, in the year of our
Lord One thousand eight hundred and fifty-nine, in the twenty-third year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me, the
said Richard Archibald. Brooman, Her special licence that I, the said Richard
Archibald Brooman, my executors, administrators, and assigns, or such
others as I, the said Richard Archibald Brooman, 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 "IMPROVEMENTS IN THE PREPARATION OF RED COLORING
MATTERS OR DYES, (a communication from abroad by Messieurs Renard,
Fréres, of Lyons,) upon the condition (amongst others) that I, the said
Richard Archibald Brooman, my executors or administrators, by an instru-
ment in writing under my, or their, or one of their hands and seals,
should particularly describe and ascertain the nature of the said Inven-
tion, 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 calen-
dar months next and immediately after the date of the said Letters
Patent.
"
NOW KNOW YE, that I, the said Richard Archibald Brooman, 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 thereof, that is to say:-
This Invention consists in obtaining red coloring matters by heating to

page_text: boiling point aniline, toluidine, cumidine, or xylidine, with one of the following
salts, which should be used in a solid state, or with a mixture of two or more
of them sulphates of tin, sulphates of mercury, bi-fluoride of tin, bi-fluoride of
mercury, nitrate of uranium, nitrate of peroxide of iron, bi-chloride of litanium,
bi-bromide (bi-bromure) of mercury, bi-bromide (bi-bromure) of tin, iodides of
tin, chlorides of uranium, bromate of mercury. Although I do not limit
myself to any proportions, I recommend eight parts by weight of the aniline,
toluidine, cumidine, or xyladine, and six parts by weight of the above-named
salts. The matter obtained is thinned down with boiling water when required
for dyeing, and the goods are dyed in the solution in the ordinary manner.
If a concentrated solution is sought, the matter is treated with alcohol, wood
spirit, or acetic acid. The color becomes fixed upon silk and wool without a
mordant, or with ordinary mordants, mineral acids excepted; but for being
fixed on cotton it is necessary that the cotton be first albuminized or prepared
with the oily preparation used for dyeing it Turkey red.
And having now described the nature of the said Invention, and in what
manner the same is to be performed, I declare that I claim preparing red
coloring matters or dyes by means and in manner herein-before described.
In witness whereof, I, the said Richard Archibald Brooman, have here-
unto set my hand and seal, this Twenty-eighth day of May, One
thousand eight hundred and sixty.
R. A. BROOMAN. (L.S.)