A METHOD OF CHANGING THE SMOKE OR VAPOR ARISING FROM THE COMBUSTION OF MANY KINDS OF SUBSTANCES INTO VARIOUS USEFUL MATERALS ACCORDING TO THE SUBSTANCES BURNT
Year: 1792

page_text: WARD'S SPECIFICATION.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, CHARLES
WILLIAM WARD, of Hatton Garden, in the County of Middlesex, Gentleman,
send greeting.
WHEREAS His most Excellent Majesty King George the Third, by His
Royal Letters Patent under the Great Seal of Great Britain, bearing date
the Fifteenth day of March, in the thirty-second year of His reign, did give and
grant unto the said Charles William Ward, my executors, admors, and assigns,
His special licence, full power, sole priviledge and authority, that I, the said
Charles William Ward, my executors, adññors, and assigns, and every of them,
by myself and themselves, or by my and their deputy and deputies, servants
or agents, or such others as I, the said Charles William Ward, my executors,
admors, or assigns, should 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 that part of Great
Britain called England, His Dominion of Wales, and Town of Berwick upon
Tweed, my Invention of "A METHOD OF CHANGING THE SMOKE OR VAPOR
ARISING FROM THE COMBUSTION OF MANY KINDS OF SUBSTANCES INTO VARIOUS USEFUL
MATERALS ACCORDING TO THE SUBSTANCES BURNT," as to me, the said Charles
William Ward, my executors, adñors, and assigns, or any of them, should
seem meet, and that I, the said Charles William Ward, my executors,
admors, and assigns, should and lawfully might have and enjoy the whole
profit, benefit, and advantage from time to time growing and arising by
reason of the said Invention, for and during the term of years therein

page_text: mentioned, to have, hold, exercise, and enjoy their said licence, power, privi-
legde, and advantage therein-before granted or mentioned to be granted unto
me, the said Charles William Ward, my executors, adññiors, and assigns, for
and during and unto the full end and term of fourteen years from the date of
the said Letters Patent next & immediately ensuing, and fully to be compleat
and ended according to the Statute in that case made and provided; in which
said Letters Patent is contained a proviso that if I, the said Charles William
Ward, should not particularly describe and ascertain the nature of my said
Invention, and in what manner the same is to be performed, by an instru-
ment in writing under my hand and seal, and cause the same to be inrolled
in the High Court of Chancery within one calendar month next and imme-
diately after the date of the said Letters Patent, that then the said Letters
Patent, and all liberties and advantages whatsoever thereby granted, should
utterly cease, determine, and become void, as in and by the said Letters Patent,
relation being thereunto had, will more fully and at large appear.
NOW KNOW YE, that I, the said Charles William Ward, in compliance
with the proviso in the Letters Patent contained, do hereby describe and
ascertain the nature of my said Invention of A Method of changing the
Smoke or Vapor arising from the Combustion of many kinds of Substances into
various useful Materials according to the Substances burnt, "as follows":
All smoke or vapor from the combustion of different bodies is capable of
being decomposed or condensed, but as the vapors according to the substance
they proceed from require to pass through cold water, the steam of boiling
water, or to be confined some time in cold vessells before they can be con-
densed, the change cannot be effected by any method hitherto known, because
none of them are capable of making the vapor pass thro' water, or of con-
fining it long enough for it to condense without choaking up the draught of
air necessary for the burning of the fires. My Invention supplies this defect
by making a constant draught from the fires, and causing the vapor to pass
through or be retained in proper vessells a sufficient time for it to condense;
this is affected by connecting the aperture of the chimney or chimneys with
the condensing vessells or chambers by means of tubes or pipes; then it is to
be placed either between this connection or behind the condensing vessells; any
machine or machines whose principle depends upon the known property of all
fluids rushing in to fill up the vacuum caused by their action, that is to say,
air pumps, water pumps, ventilators, bellows, air machines, &c.; these, how-
ever different their constructions, have all one common principle, and therefore
the application of them or others depending upon the said principle to effect
the purpose above mentioned, will be an infringement upon my said Patent;

page_text: the size, number, and construction of the condensing vessells must depend upon
the vapor to be decomposed, as some vapors are more difficult to condense
than others, and therefore require a longer process. The apparatus being thus
fixed, the substances to yield the smoke or vapor are to be set on fire under
the chimney or chimneys, and the machine or machines set in motion by
either steam engine, water, or horse wheel, &c.
from the fires by the action of the machine, and
condensing vessells to be decomposed.
of the condensing vessells, if the pumping machine is placed between them
and the chimney, to open and shut for the purpose of giving vent to the incon-
densible airs which will combine with the vapors in burning, and pass with
them through the apparatus; if the machine is placed behind the vessells,
there will be no occasion for those apertures.
The vapour will be drawn
made to pass through the
There must be apertures at the end
In witness whereof, I have hereunto set my hand and seal, this Thirteenth
day of April, in the year of our Lord One thousand seven hundred and
ninety-two
AND BE IT REMEMBERED, that on the Thirteenth day of April, in
the year of our Lord 1792, the aforesaid Charles William Ward came before
our said Lord the King in His Chancery, and acknowledged the Specification
aforesaid, and all and everything therein contained and 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 Thirteenth day of April, in the year of our Lord One
thousand seven hundred and ninety-two.