MANUFACTURING BRICK FOR BUILDING, AND LIKEWISE POTTERY, FROM A SUBSTANCE DISCOVERED BY US
Year: 1801

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, wc, JOHN
STEVENS, and THOMAS ANGELL WHITE, of Plymouth, in the County of Devon,
Coal Factors, send greeting.
WHEREAS His most Excellent, Majesty King George the Third, by His
Letters. Patent, under the, Great Seal of the United Kingdom of Great
Britain and Ireland, bearing date the Sixteenth day of January, in the forty-
first year of His reign, did give, and grant, unto us,, the said John Stevens
and Thomas, Angell White,, our exors, admors, and assigns, His special licence
that we, the said John Stevens and Thomas Angell White, our exors, adñiors,
and assigns, during the term of fourteen years, therein expressed, should and
lawfully, might make,. use, exercise, and vend, within, England, Wales, and the
Town of Berwick-upon-Tweed, our Invention of "MANUFACTURING BRICK FOR
BUILDING, AND LIKEWISE POTTERY, FROM A SUBSTANCE DISCOVERED BY US;" in
which said Letters Patent there is contained a proviso obliging us, the said
John Stevens and Thomas, Angell White, to cause a particular description of
the nature of our said Invention, and in what manner the same is to be
performed, by an instrument in writing under our hands and seals, to be
inrolled in the High Court of Chancery, within one calendar month next
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, we, the said
John Stevens and Thomas Angell White, do hereby declare that the nature of
our said Invention or discovery for manufacturing brick for building and
pottery, is a substance of earth, sand, and other sediments, which have from
time to time been overflowed and impregnated with salt water, as herein-after
more particularly mentioned and described (that is to say):-
Where, for a length of time, the sea or salt water has deposited its sediment,

page_text: and this sediment has from time to time been encreased, and the sea or salt
water has by its continual flowing and ebbing over and from such sediment
duly-impregnated-the-same-with-its-salts,-leaving-what-is-commonly-called-or
known by the name of ooze or mud; or where, at the mouths or inlets of any
rivers, rivulets, bays, creeks, or harbours, by the fresh water descending from
the shore or other causes, earth, sand, and other sediments are deposited, and
such sediment has for a length of time been subject to the flowing and ebbing
of the sea or salt water, and thereby imbibed and duly impregnated with its
salts, this sediment, ooze, or mud, or by what other name it may be called
or described, is a fit substance for the formation of brick and pottery, and the
method of collecting the materials, and the manner of preparing the same
after being so collected, is as follows, viz:-Where this sediment, ooze, or mud
is found, care must be taken to remove the surface or upper strata thereof to
the depth of from three to six inches more or less, that part being generally
light and imperfect, and the remainder or lower part of the said sediment
will be found of a sufficient solidity for the manufacture. This sediment is to
be mixed with fine sand not exceeding one third part of the whole, and then
to be tempered, moulded, and manufactured in like manner as clay for other
bricks and pottery is usually tempered, moulded, and manufactured, except
'that brick and pottery manufactured from the aforesaid newly-discovered
materials require more time in drying than brick and pottery made from clay
(and in which state they must be carefully attended to), and except also that
in burning the brick and pottery produced from the aforesaid materials the
same requires more coals or other fuel than brick and pottery made from
'clay.
In witness whereof, we, the said John Stevens and Thomas Angell White,
have hereunto set our hands and seals, this Eleventh day of February,
in the year of our Lord One thousand eight hundred and one.

page_text: AND BE IT REMEMBERED, that on the Eleventh day of February, in
the year of our Lord 1801, the aforesaid John Stevens and Thomas Angell.
White came before our Lord the King in His Chancery, and acknowledged
the Specification aforesaid, and all and every thing therein contained and
5 specified, in form above written. And also the Specification aforesaid was
stampt according to the tenor of the Statutes made for that purpose.
Inrolled the Fourteenth day of February, in the year of our Lord One
thousand eight hundred and one.