IMPROVEMENTS IN THE PREPARATION OF A BLUE COLOURING MATTER
Year: 1862

page_text: LETTERS PATENT to William Spence, of 50, Chancery Lane, in the County
of Middlesex, Patent Agent, for the Invention of "IMPROVEMENTS IN THE
PREPARATION OF A BLUE COLOURING MATTER."- A communication from
abroad by Nicolas Philibert Guinon, Jean Aimé Marnas, and François
Bonnet, all of Lyons, in the Empire of France, Manufacturers.
Sealed the 23rd January 1863, and dated the 28th July 1862..
PROVISIONAL SPECIFICATION left by tho said William Spenco at the
Office of the Commissioners of Patents, with his Petition, on tho
28th July 1862.
I, WILLIAM Spence, of 50, Chancery Lane, in the County of Middlesex,
Patent Agent, do hereby declare the nature of the said Invention for "IMPROVE-
MENTS IN THE PREPARATION OF A BLUE COLOURING MATTER," (being a commu-
nication to me from abroad by Nicolas Philibert Guinon, Jean Aimé Marnas,
and François Bonnet, all of Lyons, in the Empire of France, Manufacturers,)
to bo as follows:-
This Invention has for its object the preparation of a blue colouring matter
derived from phenic or carbolic acid. For this purpose there are taken about
five parts of the matter, which we have called "péonine," (that is to say, a
red colouring matter prepared from phenic or carbolic acid,) and about from
six to eight parts of aniline. The mixture is heated to a temperature near to
the boiling point, which is maintained for some hours until the material is
completely transformed. The result hence obtained is a blue colouring matter,
which is purified by means of successive washings; first, with boiling water
acidulated by sulphuric, hydrochloric, or other acids; secondly, with heated
coal oil; and, thirdly, with a dilute solution of caustic soda, or potash, or

page_text: other alkalies. The matter thus obtained is passed into acidulated boiling
water, then dried. It is then in the form of a powder with golden shades,
soluble in alcohol, methyle, and other spirits, and the solutions of which may
be used directly for dyeing and printing.
This new colouring matter is called "azuline," and is applicable to dyeing
and printing generally.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said William Spence, in the Great Seal Patent Office on the
27th January 1863.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
SPENCE, of 50, Chancery Lane, in the County of Middlesex, Patent Agent,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-eighth day of July, in the year of our Lord
One thousand eight hundred and sixty-two, in the twenty-sixth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me,
the said William Spence, Her special license that I, the said Williamı
Spence, my executors, administrators, and assigns, or such others as I,
the said William Spence, 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 "IMPROVE-
MENTS IN THE PREPARATION OF A BLUE COLOURING MATTER," being a commu-
nication from abroad by Nicholas Philibert Guinon, Jean Aimé Marnas, and
François Bounet, all of Lyons, in the Empire of France, Manufacturers,
upon the condition (amongst others) that I, the said William Spence, by an
instrument in writing under my hand and seal, should particularly describo
and ascertain the nature of the said Invention, and in what manner tho
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.
NOW KNOW YE, that I, the said William Spence, 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 (that is to say) :-
-
This Invention of "Improvements in the Preparation of a Blue Colouring

page_text: Matter," has for its object the preparation of a blue colouring matter derived
from phenic or carbolic acid. For this purpose there are taken about five
parts of the matter, which has been called "péonine" in the Specification of
a Patent granted to me as a communication from abroad, as aforesaid,
No. 2130, 1862, and described therein as a red colouring matter prepared
from phenic or carbolic acid, and about from six to eight parts of aniline.
The mixture is heated to a temperature near to the boiling point, which
heating is maintained for some hours until the material is completely trans-
formed. The result hence obtained is a blue colouring matter, which is purified
by successive washings; first, with boiling water acidulated with sulphuric,
hydrochloric, or other acids; secondly, with heated coal oil; and, thirdly, with
a dilute solution of caustic soda, or potash, or other alkalies. The matter
thus obtained is passed into acidulated boiling water, then dried. It is then
in a state of powder with golden shades, soluble in alcohol, methyle, and
other spirits, and the solutions of which may be used directly for dyeing and
printing.
The colouring matter thus obtained is called "azuline," and is applicable to
dyeing and printing generally.
Having thus described the nature of the said Invention, and in what
manner the same is to be performed, I would remark that the Invention
relates to the different actions of "péonine" on other alkaloids, natural or
artificial, besides aniline, such as "naphthilamine," "tolluidine," "cumidine,"
and others; but what I claim as of the Invention communicated to me, as
aforesaid, is the preparation of a blue colouring matter from phenic or
carbolic acid, as herein-before described, and the application of the same to
dyeing and printing.
In witness whereof, I, the said William Spence, have hereunto set my
hand and seal, the Twenty-seventh day of January, in the year of
our Lord Ono thousand eight hundred and sixty-three.
Witness,
WALTER W. CLARE,
Clerk to G. B. Coulcher,
Law Stationer,
50, Chancery Lane.
WILLIAM SPENCE. (L.B.)