A VALUABLE PRODUCT OR VALUABLE PRODUCTS FROM THAT PART OF THE REFUSE SLIME OR WASH OF STARCH THAT WILL NOT OF ITSELF SUBSIDE
Year: 1818

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, MARY
SEDGWICK, of Bishopgate Within, Starch Manufacturer, send greeting.
WHEREAS His most Excellent Majesty King Georgo the Third did.
by His Letters Patent under the Great Seal of the United Kingdom of
Great Britain and Ireland called England, bearing date at Westminster.
the Tenth day of February, in the fifty-eighth year of His reign, give and
grant unto me, the said Mary Sedgwick, my exors, adññiors, and assigns,
His special licence, full power, sole privilege and authority, that I, the said
Mary Sedgwick, my exors, adiñors, and assigns, should and lawfully might,
during term of years therein mentioned, make, use, exercise, and vend,
within England, Wales, and the Town of Berwick-upon-Tweed, my Discovery
of "A VALUABLE PRODUCT OR VALUABLE PRODUCTS FROM THAT PART OF THE
REFUSE SLIME OR WASH OF STARCH THAT WILL NOT OF ITSELF SUBSIDE;" in
which said Letters Patent there is contained a proviso that if I, the said
Mary Sedgwick, shall not particularly describe and ascertain the nature of
my said Invention, and in what manner the same is to be performed, by
an instrument in writing under my hand and seal, and 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 Letters Patent, that
then the said Letters Patent, and all liberties and advantages whatsoever
thereby granted, shall utterly cease, determine, and become void, as in
and by the same, relation being thereunto had, may more fully and at large
appear.
NOW KNOW YE, that in compliance with the said proviso, I, the said
Mary Sedgwick, do hereby declare that the nature of my said discovery,

page_text: and the manner in which the same is to be prepared, are particularly
described and ascertained in and by the following description thereof (that
is to say):-
Take the slime wash or refuse of starch obtained in the manufacture of
starch from wheat, after the whole of the starch has been taken from it; put it
through a fine hair scive to take any bran out that may have remained in it,
then make a bed of dry sand about two foot deep, six long, and four over,
cover it with a strong hurden cloth, and pour the wash upon it about two
inches thick; after it has stood three or four days it will be in a state to
cut out in pieces. The object of exposing the slime to this action of a bed of
dry sand is to deprive the slime of water, the sand acting like a strainer or
filter. When the slime has acquired a sufficient consistency it must be laid
upon brick or chalk for one or two days, and then put into a drying stove. It
must be broke in picces, pounded upon an iron plate not very hot, and well
stirred till the whole of the humidity is evaporated. And, lastly, the plate
must be made very hot gradually. After the preparation has been thus far
obtained, let it be exposed to a strong degree of heat until the product acquires
a pale almond or chesnut colour, the operater taking care to stirr the product
continually to prevent it being burnt or injured by an unequal application of
heat. After this has been accomplished it must be ground and sifted fine
for use.
In witness whereof, I, the said Mary Sedgwick, have hereunto set my
hand and seal, this Ninth day of April, in the year of our Lord One
thousand eight hundred and eighteen.