IMPROVE- MENTS IN TREATING LIQUORICE ROOT TO OBTAIN LIQUID AND SOLID EXTRACTS THEREFROM
Year: 1863

page_text: LETTERS PATENT to Richard Archibald Brooman, of 166, Fleet Street,
in the City of London, Patent Agent, for the Invention of "IMPROVE-
MENTS IN TREATING LIQUORICE ROOT TO OBTAIN LIQUID AND SOLID EXTRACTS
THEREFROM."-A communication from abroad by Frumence Nicolas
Frezon, of Paris, France.
Sealed the 1st December 1863, and dated the 5th June 1863.
PROVISIONAL SPECIFICATION left by the said Richard Archibald
Brooman at the Office of the Commissioners of Patents, with his
Petition, on the 5th June 1863.
I, RICHARD ARCHIBALD BROOMAN, of 166, Fleet Street, in the City of
London, Patent Agent, do hereby declare the nature of the said Invention
for "IMPROVEMENTS IN TREATING LIQUORICE ROOT TO OBTAIN LIQUID AND SOLID
EXTRACTS THEREFROM," to be as follows:-
The extracts hitherto obtained from liquorice root have been black, and
when eaten have produced in the mouth a yellowish brown saliva, with a
sweet but somewhat tart flavor. Now the object of this Invention is to make
the extracts, whether liquid or solid, without any apparent color and without
the tart flavor.
The Invention consists in treating the root of the liquorice plant as hereafter
stated. The roots are first pulverized by pestles, stones, or rollers, or they are
cut up into pieces and are washed or soaked in cold water until they are
thoroughly exhausted. The resulting waters are thick and troubled, and in

page_text: order to clarify them they are boiled, say, for about ten minutes, and then
strained through a woollen strainer which retains the matters coagulated by
the boiling. The liquid is then limpid and of a dark yellow color, and to
remove this color the liquid is placed in a filter containing animal black. The
liquid after having been acted on by the black may be evaporated to any
desired consistence, allowed to cool gradually, when it becomes a pretty firm
mass and may be made into sticks or other forms.
Instead of the treatment just described this Invention also consists in
operating as follows:-After the defecation and filtration of the liquid as herein-
before described it is placed in a wooden or other suitable vessel, and while hot
I add a solution of acid, citric acid by preference, or acid salts such as bisul-
phates of potash; abundant coagulation takes place and the mass is allowed to
cool; I then filter it and wash the paste in cold water, or I neutralize any
slight excess of acid by bicarbonate of soda, taking care not to employ any
.excess of salt. The quantity of citric acid required to coagulate or precipitate
the saccharine matter contained in the liquorice waters depends on the richness
of those waters; the product is slightly dried to bring it into a solid state. It
may be used in its solid state or in the preparation of drinks, syrups, jellies,
candies, and otherwise.
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 5th December 1863.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, RICHARD
ARCHIBALD BROOMAN, of 166, Fleet Street, in the City of London, Patent
Agent, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Fifth day. of June, in the year of our Lord
One thousand eight hundred and sixty-three, in the twenty-sixth year of
Her reign, did, for Herself, Her heirs and successors, give and grant unto me,
the said Richard Archibald Brooman, Her special licenco that I, the said
Richard Archibald Brooman, my executors, administrators, and assigns, or
such others as I, the said Richard Archibald Brooman, my executors, admini-
strators, 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

page_text: 66
Man, an Invention for IMPROVEMENTS IN TREATING LIQUORICE ROOT TO
OBTAIN LIQUID AND SOLID EXTRACTS THEREFROM," (communicated to me from
abroad by Frumence Nicolas Frezon, of Paris, France,) 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 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.
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 :-
The extracts hitherto obtained from liquorice root have been black, and
when eaten have produced in the mouth a yellowish brown saliva, with a sweet
but somewhat tart flavor. Now the object of this Invention is to make the
extracts, whether liquid or solid, without any apparent color and without the
tart flavor.
The Invention consists in treating the root of the liquorice plant as here-
after stated. The roots are first pulverized by pestles, stones, or rollers, or they
are cut up into pieces and are washed or soaked in cold water until they are
thoroughly exhausted. The resulting waters are thick and troubled, and in
order to clarify them they are boiled, say, for about ten minutes, and then
strained through a woollen strainer which retains the matters coagulated by
the boiling. The liquid is then limpid and of a dark yellow color, and to
remove this color it is placed in a filter containing animal black. The liquid
after having been acted on by the black may be evaporated to any desired
consistence and allowed to cool gradually, when it becomes a pretty firm mass
and may be made into sticks or other forms.
Instead of the treatment just described this Invention also consists in
operating as follows:-After the defecation and filtration of the liquid as-
herein-before described it is placed in a wooden or other suitable vessel, and
while hot I add a solution of acid; citric acid by preference, or acid salts such
as bisulphates of potash; abundant coagulation takes place and the mass is
allowed to cool; I then filter it and wash the paste in cold water, or I neutra-
lize any slight excess of acid by bicarbonate of soda, taking care not to employ
any excess of salt. The quantity of citric acid required to coagulate or pre-
cipitate the saccharine matter contained in the liquorice waters depends on

page_text: the richness of those waters. The product is slightly dried to bring it into a
solid state. It may be used in its solid state or in the preparation of drinks,
syrups, jellies, candies, and otherwise.
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, treating liquorice
root to obtain liquid and solid extracts therefrom substantially by the means
and in manner herein-before described.
In witness whereof, I, the said Richard Archibald Brooman, have
hereunto set my hand and seal, this Fifth day of December, One
thousand eight hundred and sixty-three.
R. A. BROOMAN. (L.S.)