A CHEMICAL SUBSTITUTE FOR GALL NUTS IN ALL THE DIFFERENT BRANCHES OF THE ARTS OR MANUFACTURES IN WHICH GALL NUTS HAVE BEEN ACCUSTOMED OR MAY HEREAFTER BE USED
Year: 1825

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, CHARLES
LOUIS GIROUD, of Lyons, in the Kingdom of France, at present residing at
No. 13, Queen Street, Soho, in the County of Middlesex, send greeting.
WHEREAS His most Excellent Majesty King Georgo the Fourth, by His
Letters Patent under the Great Seal of Great Britain, bearing date at West-
minster, the Eighth day of November, in the sixth year of His reign, did, for
Himself, His heirs and successors, give and grant unto me, the said Charles
Louis Giroud, His especial licence that I, the said Charles Louis Giroud, my
executors, administrators, and assigns, or such others as 1, tho said Charles
Louis Giroud, my executors, administrators, or assigns, should at any time
agree with, and no others, from time to time and at all times during the
term of years therein expressed, should and lawfully might make, use, exercise,
and vend, within England, Wales, and the Town of Berwick-upon-Tweed,
and also within all His Majesty's Colonies and Plantations abroad, my
Invention of "A CHEMICAL SUBSTITUTE FOR GALL NUTS IN ALL THE DIFFERENT
BRANCHES OF THE ARTS OR MANUFACTURES IN WHICH GALL NUTS HAVE BEEN
ACCUSTOMED OR MAY HEREAFTER BE USED;" in which said Letters Patent there
is contained a proviso obliging me, the said Charles Louis Giroud, by an
instrument in writing under my hand and seal, particularly to describe and
ascertain the nature of my said Invention, and in what manner the same is
to be performed, and to cause the same to be inrolled in His Majesty's High
Court of Chancery within two calendar months next and immediately after
the date of the said recited Letters Patent, as in and by the same, reference
being thereunto had, will more fully and at large appear.

page_text: NOW KNOW YE, that in compliance with the said proviso, I, the said
Charles Louis Giroud, do hereby declare that the nature of my said Invention,
and the manner in which the same is to be performed, is described and
ascertained in the following explanation thereof, that is to say :-
"I extract this chemical produce or substitute, to which I give the name of
damajavag," from the wood of the chesnut tree, and also from the shells which
inclose the nut or fruit of the tree, and, which is to be extracted by the
following or any other chemical means:-I extract the damajayag from the shells,
by putting into a copper or boiler of convenient size, and made of any metal
except iron, a hundredweight of the shells, either entire or cut or broken into
small pieces, to which I put from one hundred and eighty to two hundred
quarts of water (and so in proportion for any greater or less quantity of the
I then
shells), in which I leave the shells to soak for twelve hours.
boil the whole for three or four hours. I also extract the damajavag from
the wood of the chesnut tree, by sawing it or paring it into shavings, or
reducing it into powder, and by putting into a copper or boiler of con-
venient size, made of any metal except iron, a hundredweight of wood so
sawn or pared into shavings or reduced into powder, to which I put about onc
hundred and fifty quarts of water (and so in proportion for any greater or less
quantity of wood), in which I leave the wood to soak for twelve. hours. I then
boil the whole- for-three or four hours. After having thus boiled.the shell or
the wood, whichever may be the subject of the process, I separate the liquor
by filtering it through a linen or other sieve. I then suffer it to evaporate till
it weighs, by the arccometer, six degrees. I then pour it into large and
appropriate dishes or pans, of any substance except iron, which I'put either in
a proper drying place-or-in-an-oven, heated-to one hundred-and-forty-five
degrees of Farenheit's thermometer. I then occasionally stir the liquor with a
stick until it is sufficiently compact to form a sort of paste. I then make it
into cakes of indefinite weight, and dry them in the air. By 'these means I
obtain from a hundredweight of the shells which enclose the nut or fruit
eight or ten pounds of damajavag, and from a hundredweight of wood five
or six pounds of damajavag of a dry and clear body, which dissolves easily in
cold water, but more readily in boiling water, which then produces a brown
liquor with an acerb taste, and it has the property of changing tincture of
turnsol into a red colour. I boil the shells or wood a second time for three or
four hours, and by adopting the same process I obtain a fresh quantity of
damajawag, but which varies according to the quantity produced by the first
decoction. After I make the damajavag into cakes, as already stated, I
reduce them into coarse or fine powder, accordingly as I wish to use them, by

page_text: simply bruising the cakes with a common hammer. I extract the damajavag
in a liquid state by boiling the shell which incloses the nut or fruit, or the wood
of the chesnut tree, in the proportionate quantities of water and for the period
before mentioned, and by filtering the liquor and suffering it to evaporate as
before mentioned, until by the arceometer it attains such weight as the person
who may use the same thinks proper. I also extract the damajavag from
the wood of the chesnut tree, reduced into powder by the saw, which I
place in a filterer, and compress the same with hot or cold water; but
by this means I am not able to procure so large a quantity as by the
decoction before mentioned. I also extract the damajavag from the sap of
the chesnut tree, by making an incision in its trunk, which produces a very
pure damajavag, and which will attain the solid state of either of the former
by the same kind of evaporation as is before described. The substance, in
fact, of my Invention is, the procuring from the wood of the chesnut tree or
from the shells which enclose the nut or fruit, or from tapping of the tree
itself, an extract whereby or by the means of which a substance or liquid may
be obtained, which can or may be used as a substitute for gall nuts in all the
different branches of the arts or manufactures in which gall nuts have been
accustomed or may hereafter be used.
In witness whereof, I, the said Charles Louis Giroud, have hereunto set
my hand and seal, the Tenth day of November, in the year of our
T
1
AND BE IT REMEMBERED, that the same Tenth day of November, in
the year above mentioned, the aforesaid Charles Louis Giroud came before
our Lord the King in His Chancery, and acknowledged the Specification
aforesaid, and all and every thing therein contained, in form above written.
And also the Specification aforesaid was stamped according to the tenor of
the Statute in that case made and provided.
Inrolled the same Tenth day of November, in the year above written.