AN IMPROVEMENT IN DYING OR PRODUCING A PERMANENT NANKEEN COLOUR ON COTTON WOOL, SKEIN YARN, AND CERTAIN OTHER ARTICLES
Year: 1823

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, THOMAS
BURY, of Salford, Manchester, in the County Palatine of Lancaster, Dyer,
send greeting.
WHEREAS His most Excellent Majesty King George the Fourth, by His
Letters Patent under the Great Seal of Great Britain, bearing date at West-
minster, the Eighteenth day of February, in the fourth year of His reign, did,
for Himself, His heirs and successors, give and grant unto me, the said.
Thomas Bury, His especial licence that I, the said Thomas Bury, my exors,
admiors, and assigns, or such others as I, the said Thomas Bury, my exors,
admors, and assigns, should at any time agree with, and no others, from time
to time and at all times thereafter 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, my Invention of "AN
IMPROVEMENT IN DYING OR PRODUCING A PERMANENT NANKEEN COLOUR ON COTTON
WOOL, SKEIN YARN, AND CERTAIN OTHER ARTICLES;" in which said Letters
Patent there is contained a proviso, obliging me, the said Thomas Bury, 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.
NOW KNOW YE, that in compliance with the said proviso, I, the said
Thomas Bury, do hereby declare that the nature of my said Invention, and

page_text: the manner in which the same is to be performed, is described and ascertained
as follows, that is to say :-
The improvement consists solely in the use of the bark of the cork tree,
instead of woods or other materials heretofore used in dyeing a nankeen
colour.
The bark may be used and applied as follows:-For every twenty pounds
weight of skein yarn, cotton wool, or the same weight of other articles, prepare
a mordant for dyeing a nankeen colour in the usual manner, pass the articles
intended to be dyed through the mordant from ten to fifteen minutes; then,
wash them well, and raise them in a decoction of the bark of the cork tree
of about fourteen gallons of water to twelve pounds weight of the bark, ground
or well bruised or crushed, which operation or raising will be effected in
from ten to fifteen minutes; then prepare another mordant for dyeing a
nankeen colour in the usual manner, pass the articles intended to be dyed
through this mordant from ten to fifteen minutes; then wash off in soap and
warm water or hartshorn and warm water, and dry.
I do not, however, mean that my Invention is confined to this particular
mode of preparing and applying the bark of the cork tree, it being obvious
that the mode of preparing and applying it may be varied; but my Invention
cousists in the use and application of the bark of the cork tree in whatever
form it may be prepared and applied.
In witness whereof, I, the said Thomas Bury, have hereunto set my
hand and seal, the Fourteenth day of April, in the year of our Lord
L
REDHEAD, Extra.
THOS BURY. (L.S.)
AND BE IT REMEMBERED, that on the Fourteenth day of April, in
the year of our Lord 1823, the aforesaid Thomas Bury came before our said
Lord the King in His Chancery, and acknowledged the Specification aforesaid,
and all and every thing therein contained and specified, in form above written.
And also the Specification aforesaid was stampt according to the tenor of
the Statute made for that purpose.