IMPROVEMENTS IN EXTRACTING AND PREPARING THE COLOURING MATTER FROM ORCHIL
Year: 1849

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, ACHILLE
CHAUDOIS, of Fauborg du Temple, Paris, in the Republic of France, Manu-
facturing Chemist, send greeting.
WHEREAS Her present most Excellent Majesty Queen Victoria, by Her
Royal Letters Patent under the Great Seal of the United Kingdom of Great
Britain and Ireland, bearing date at Westminster, the Fourteenth day of
February (One thousand eight hundred and forty-nine), in the twelfth
year of Her reign, did, for Herself, Her heirs and successors, give and grant
unto me, the said Achille Chaudois, my exors, adñiors, and assigns, Her
especial licence, full power, sole privilege, and authority, that I, the said
Achille Chaudois, my exors, adññors, and assigns, and such others as I, the
said Achille Chaudois, my exors, adiñors, 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 Town of Berwick-upon-Tweed, my
Invention of "IMPROVEMENTS IN EXTRACTING AND PREPARING THE COLOURING
MATTER FROM ORCHIL;" in which said Letters Patent is contained a proviso
that I, the said Achille Chaudois, shall cause a particular description of the
nature of my said Juvention, and in what manner the same is to be performed,
by an instrument in writing under my hand and seal, to be inrolled in Her
Majesty's High Court of Chancery within six calendar months next and
immediately after the date of the said in part recited Letters Patent, as in
and by the same, reference being thereunto had, will more fully and at large
appear.
NOW KNOW YE, that in compliance with the said proviso, I, the said
Achille Chaudois, do hereby declare that the nature of the said Invention, and

page_text: the manner in which the same is to be performed, are fully described and
ascertained in and by the following description thereof, that is to say :-
According to the ordinary method of extracting coloring matter from
orchil or dye lichens, they are immersed in sufficient water to bring them into
a pasty state, when alkalies, such as liquid ammonia, are introduced into the
mass, and the whole mixed together, and employed in producing coloring
matter. In some cases potash, or urine and lime, are introduced for the same
purposes, by which process I find that the coloring matter is not obtained
so pure as it may be by the process hereafter described, whereby the substan-
tive matters of the lichen orchil are kept separate, and the coloring matters
or extract only used.
And my Invention consists of extracting and preparing the coloring matter
from the lichens or orchil by submitting the dye lichens or orchil to washing
by water, and draining off or separating the water therefrom, and then
operating upon the solutions (thus obtained) by the ordinary means heretofore
resorted to when acting on the mass, such as the addition of liquid ammonia, or
other of the ordinary alkaline matters. These washings may be effected with
hot water only, or it may be slightly impregnated with alkali, or urine and
lime, the object being to avoid using the substantive matters of the lichens or
orchil, and only to employ the extracted solutions.
Having thus described the nature of the Invention, and the manner of
performing the same, I would have it understood that I do not claim the
obtaining coloring matter from dye lichens or orchil by the use of alkalies or
alkaline matters. But what I claim is the obtaining coloring matter from
orchil by means of washing lichen or orchil so as to obtain solutions of the
same, and treating these products in place of the mass, to obtain coloring
matter.
In witness whereof, I, the said Achille Chaudois, have hereunto set my
hand and seal, this Thirtieth day of July, in the year of our Lord One
thousand eight hundred and forty-nine.
Taken and acknowledged by Achille
Chaudois (party hereto), at Paris,
in the Republic of France, this
30th day of July, 1849, before me,
ACHILLE (Ls.) CHAUDOIS.

page_text: This is the Specification referred to in the Affidavit of William Henry
Ritchie, sworn before me, this 11 day of August, 1849,
R. CROSBY.
William Henry Ritchie, of Lincoln's Inn, in the County of Middlesex,
Gentleman, maketh oath and saith, that he is acquainted with the nianner and
character of the handwriting of Thomas Pickford, Her Britannic Majesty's
Consul at Paris, in the Republic of France. And this Deponent further saith,
that the signature "Thomas Pickford," set, subscribed, or written in the
margin of the Specification hereunto annexed, marked A, and dated the
Thirtieth day of July last past, and purporting to be executed by Achille
Chaudois, of Fauborg du Temple, Paris, aforesaid, whereby it is stated that
the said Specification was acknowledged by him, the said Achille Chaudois,
before the said Thomas Pickford, on the said Thirtieth day of July, at Paris
aforesaid, is of the proper handwriting of the said Thomas Pickford.