A NEW METHOD OF EXTRACTING, FOR THE PURPOSE OF DYING, THE COLOUR FROM DYE WOODS AND OTHER SUBSTANCES USED BY DYERS
Year: 1830

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOSEPH
MARIE URSULE LA RIGAUDELLE DU BUISSON, of Fenchurch Street, in the City
of London, Merchant, send greeting.
WHEREAS, in consequence of a communication made to me by a certain
foreigner, residing abroad, I am in possession of an Invention of "A NEW
METHOD OF EXTRACTING, FOR THE PURPOSE OF DYING, THE COLOUR FROM DYE
WOODS AND OTHER SUBSTANCES USED BY DYERS;" And whereas His present most
Excellent Majesty King George the Fourth, by His Letters Patent under the
Great Seal of Great Britain, bearing date at Westminster, the Twelfth day of
February, in the eleventh year of His reign, did, for Himself, His heirs and
successors, give and grant unto me, the said Joseph Marie Ursule La
Rigaudelle du Buisson, His especial licence that I, the said Joseph Marie
Ursule La Rigaudelle du Buisson, my executors, administrators, and assigns,
or such others as I, the said Joseph Marie Ursule La Rigaudelle du Buisson,
my exors, admors, 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, "the said Invention;" in
which said Letters Patent is contained a proviso obliging me, the said Joseph
Marie Ursule La Rigaudelle du Buisson, by an instrument in writing under
my hand and seal, particularly to describe and ascertain the nature of the said
Invention, and in what manner the same is to be performed, and to cause the

page_text: same to be inrolled in His said 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.
NOW KNOW YE, that in compliance with the said proviso, I, the said
Joseph Marie Ursule La Rigaudelle du Buisson, do hereby declare the nature
of the said Invention to consist in extracting. the colouring matter from dye
wood, and other vegetable substances used by dyers, by means of steam, so
applied as to extract the colouring matter mixed with a portion of condensed
steam or water, and afterwards to evaporate the said condensed steam or
portion thereof, as may be deemed most expedient by the operator, according
to the nature of the substance extracted; and in further compliance with the
said proviso, I, the said Joseph Marie Ursule La Rigaudelle du Buisson, do
hereby describe the manner in which the said Invention is to be performed, by
the following description thereof, reference being had to the Drawings annexed,
and to the letters marked thereon (that is to say):-
DESCRIPTION OF THE DRAWING.
A is a shallow open tin pan set on the top of a wooden box or steam case B,
which is lined with lead, and the pan is so fixed as to prevent the escape of
steam from the box beneath it. a is a steam pipe supposed to lead from a
steam boiler, and opening into the box B; 6 is another steam pipe, through
which the steam passes from the box B to the upper part of the chamber C, D;
m is a cover to the chamber C, D; which chamber may be made of wood, but
should be lined with glass or glazed tiles; d is a false bottom made of tin and
pierced with holes like a colander; c is a pipe leading from the part D of the
chamber C, D, and projecting over the pan A. When it is required to extract
the color from any vegetable substance. by means of this apparatus, say, for
instance, from dye wood of any kind, remove the cover m and fill the chamber Ç
with the chips or sawdust of the wood, which will of course rest upon the
false bottom d, then shut down the cover m tightly so as to prevent the escape
of steam, and turn on the steam at the steam pipe a. The steam will find
- its way under the pan A and through the pipe 6 up into the chamber C, where
it will distribute itself downwards through the wood, extract and mingle with
the colouring matter, and condensing at the same time will soon begin to drop
through the pierced false bottom, d into the chamber D.; and thence, will
run through the pipe c into the pan A, which, being heated by the steam
passing through the box or steam case under it, will cause the aqueous particles
to evaporate, and thus reduce the extract to any required consistency, or even
b
"

page_text: to powder if necessary. This operation may be continued till the liquid flowing
from the pipe c is no longer colored, when it will be found the wood will be
entirely freed from its coloring matter and may be thrown away, and a fresh
supply introduced to the chamber. is a small pipe furnished with a cock to
draw off any condensed water that may collect in the box B. It is only
necessary to add, that when the substances from which the color is to be
extracted are of a resinous quality, the vapour of spirits of wine should be used
instead of the steam of water.
Now, whereas I claim as the said Invention the method herein-before
described of extracting, for the purpose of dying, the coloring matter from dye
woods, and other vegetable substances used by dyers, by means of steam, and
such said Invention being to the best of my knowledge and belief entirely new
and never before used within that part of His said Majesty's United Kingdom
of Great Britain and Ireland called England, His said Dominion of Wales,
or Town of Berwick-upon-Tweed, I do hereby declare this to be my Speci-
fication of the same, and that I do verily believe this my said Specification
doth comply in all respects fully and without reserve or disguise with the
proviso in the said herein-before in part recited Letters Patent contained;
wherefore I do hereby claim to maintain exclusive right and privilege to the
said Invention.
In witness whereof, I, the said Joseph Marie Ursule La Rigaudelle du
Buisson, have hereunto set my hand and seal, this Eighth day of April,
in the year of our Lord One thousand eight hundred and thirty.
J. M. U. LA RIGAUDELLE DU BUISSON. (LS.)
AND BE IT REMEMBERED, that on the Eighth day of April, in the
year of our Lord 1830, the aforesaid Joseph Marie Ursule du Buisson,
came before our said Lord the King in His Chancery, and acknow-
leged the Specification aforeaid, and all and every thing therein contained
and specified, in form above written. And also the Specification aforesaid
was stamped according to the tenor of the Statute made for that purpose.
Inrolled the Twelfth day of April, in the year of our Lord One thousand
eight hundred and thirty.