IMPROVE- MENTS 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 "IMPROVE-
MENTS IN THE PREPARATION OF RED COLORING MATTERS OR DYES."-A com-
munication from abroad by Messieurs Renard, Frères, of Lyons...
Sealed the 24th April 1860, and dated the 27th October 1859.
PROVISIONAL SPECIFICATION left by the said Richard Archibald
Brooman at the Office of the Commissioners of Patents, with his-
Petition, on the 27th October 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:-
This Invention consists in obtaining a red coloring matter or dye by mixing:
aniline with anhydrous. bichloride of titanium, anhydrous bi-bromates of tin, or
of mercury or anhydrous iodide of tin, and heating the mixture to boiling:
point, and in treating it in the manner in which the mixture of aniline with
bichloride of tin is directed to be treated in the Specification of an Inven-
tion also communicated to me by Renard, Frères, and för. which: L'etters:
Patent were granted me the 12th. April last, No. 921. Or I obtain a red
coloring matter by heating together to boiling point a mixture of aniline and

page_text: of dry hydrated bichloride of tin (oxymuriate permuriate); the boiling is main-
tained until the mixture becomes a beautiful red; I then allow it to cool, and
boil the mixture in clear water, whereby I obtain a brownish solution, and
which, having added to it a basic salt, or one capable of saturating acids
(alkaline or earthy carbonates, phosphates, pyrophosphates, acetates, alkaline
tartrates), deposits a red precipitate, which, separated by filtration or decan-
tation, and being afterwards dissolved in water or other liquid, is fit for use as
a red coloring matter for all dyeing and printing purposes. Or I obtain a red
coloring matter by heating to boiling point toluidine or cumidine, together
with one of the salts before stated, and by operating as above described.
Or I obtain a red coloring matter by beating to boiling point toluidine or
cumidine with one of the following metallic salts:―
Anhydrous highloride of tim
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 27th April 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-seventh day of October, in the year of our Lord
One thousand eight hundred and sixty, 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, 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 Inven-

page_text: tion for "IMPROVEMENTS IN THE PREPARATION OF RED COLORING MATTERS OR
DYES," (communicated to, me from abroad by Messieurs Renard, Frères,
of Lyons,) upon the condition (amongst others) that I, the said Richard
Archibald Brooman, my executors or. administrators, by an instrument in
writing under my, or their, or one of their hands and seals, should par
ticularly 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 imme-
diately after the date of the said Letters Patent.
NOW KNOW YE, that 1, 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 a red coloring matter or dye by mixing
aniline with anhydrous bichloride of titanium, anhydrous bi-bromides of tin, or
of mercury or anhydrous iodide of tin, and heating the mixture to boiling
point, and in treating it in the manner in which the mixture of aniline with
bichloride of tin is directed to be treated in the Specification of an Invention
also communicated to me by Renard, Frères, and for which Letters Patent
were granted me the Twelfth April, One thousand eight hundred and fifty-
nine, No. 921. Whatever be the proportions of the above-named ingredients
a red coloring matter will be produced, but those which have been found to
yield the best results are one equivalent of aniline and such a quantity of the
other composition as will contain one equivalent of chlorine, bromine, or iodine,
according to whether a chloride,, a bromide, or an iodide is employed. Or
I obtain a red coloring matter by heating together to boiling point a mixture
of aniline and of dry hydrated bichloride of tin (oxymuriate of tin, permuriate
of tin). The boiling is maintained until the mixture becomes a beautiful red.
I then allow it to cool, and boil the mixture in clean water, whereby I obtain
a brownish solution containing the coloring matter combined with hydro-
chloric acid, and to separate the color I add to the solution a basic salt, or one
capable of saturating the acid combined with the coloring matter. The salts
which answer best are alkaline or earthy carbonates, phosphates, pyro-
phosphates, acetates, and alkaline tartrates. Immediately the salt is added
the solution becomes of a beautiful red color, and if concentrated the coloring
matter becomes deposited in a solid state, which separated by filtration or
decantation, and being afterwards dissolved in water or other liquid, is fit for
use as a red coloring matter for all dyeing and printing purposes. The pro-
portions which yield the best results are four parts by weight of aniline and

page_text: three parts of dry hydrated'bichloride of tin. Or I obtain a red coloring matter
by heating to boiling point toluidine or cumidine, together with one of the
salts before stated, and by operating as above described. Or I obtain a red
coloring matter by heating to boiling point toluidine or cumidine with one of
the following metallic compositions:-