A COMPOSITION FOR THE MAKING OF FICTILE PIPES FOR THE CONDUCTING OF WATER, AND OTHER FICTILE WARES, AND A METHOD OF MAKING AND BURNING THE SAME SO AS THE SAME SHALL BE AS HARD AND DURABLE AS STONE
Year: 1766

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, THOMAS
LINDSLEE, of the Parish of Saint George the East, in the County of Middlesex,
Potter, send greeting.
WHEREAS His most Excellent Majesty King George the Third, by His
Letters Patent under the Great Seal of Great Britain, bearing date the
Twenty-fifth day of March, in the sixth year of His reign, did give and grant
unto me, the said Thomas Lindslee, my executors, administrators, and assigns,
His said Majesty's especial licence, full power, sole privilege and authority,
that I, the said Thomas Lindslec, my executors, administrators, and assigns,
from time to time and at all times during the term of years therein expressed,
should and lawfully might use, exercise, and vend, within that part of
Great Britain called England, His said Majesty's Dominion of Wales, and
Town of Berwick-upon-Tweed, my Invention of "A COMPOSITION FOR THE
MAKING OF FICTILE PIPES FOR THE CONDUCTING OF WATER, AND OTHER FICTILE
WARES, AND A METHOD OF MAKING AND BURNING THE SAME SO AS THE SAME SHALL
BE AS HARD AND DURABLE AS STONE," in such manner as to me, my executors,
administrators, and assigns, should seem meet, and that I, the said Thomas
Lindslee, my executors, administrators, and assigns, should and lawfully might
have and enjoy the whole profit, benefit, commodity, and advantage accrewing
and arising from the said Invention during the time aforesaid; and there is a
provisoc contained in the said Letters Patent obliging me, the said Thomas
Lindslee, by an instrument in writing under my hand and seal, particularly

page_text: to describe and ascertain the nature of my said Invention, and in what manner
the same is to be formed, and to cause the same to be inrolled in His
Majesty's High Court of Chancery within four calendar months next after
the date of the said Letters Patent.
NOW KNOW YE, that the said Composition for Making of Fictile Pipes
for the Conducting of Water, and other Fictile Wares, and the Method of
Making and Burning the same so as that the same shall be as Hard and
Durable as Stone, are as follows (that is to say):-
Of pipe clay, mug clay, and flint stones calcined, all three finely ground and
sifted, equal quantities; Devonshire clay and Staffordshire clay, finely ground
and sifted, of each in the same proportion to the mug clay as two is to five; of
Stourbridge clay, mug and stone ware, finely ground and sifted, white sand and
glass grinders sand, of cach in the same proportion to the mug clay as twenty
is to twenty-five; of magnesia, finely ground and sifted, in the same proportion
to the white sand as five is to twenty; the several materials aforesaid to be
mixed with water to a proper consistence, and, after being kneaded with men's
feet or with any proper instrument, machine, or engine, to be formed in tin or
iron mouldings, and, when sufficiently dry, to be double glazed with the fol-
lowing composition; (that is to say), of magnesia, red oaker, and yellow oaker,
equal parts; of lead oar half as much as magnesia; and of quarte in proportion
to the magnesia as one is to twenty. The same fictile pipes and other wares
are to be burnt, in cans made of the same materials as the said pipes, in a kiln
of a height proportionable to the length of the said pipes and wares, and with
four mouths.
In witness whereof, I, the said Thomas Lindslee, have hereunto set my
hand and seal, the Eighteenth day of July, in the sixth year of the
reign of our Sovereign Lord George the Third, by the Grace of God of
Great Britain, France, and Ireland King, Defender of the Faith, and
so forth, and in the year of our Lord One thousand seven hundred and
sixty-six.

page_text: AND BE IT REMEMBERED, that on the Nineteenth day of July, in
the year of our Lord One thousand seven hundred and sixty-six, the aforesaid
Thomas Lindslee 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 stamped according to the tenor of the Statute made in the sixth
year of the reign of the late King and Queen William and Mary of England,
and so forth.
Inrolled the Nineteenth day of July, in the year of our Lord One
Inrolled the Nineteenth day of July, in the year of our Lord One
thousand seven hundred and sixty-six.