Arrangements in Furnaces and Boilers for Decom- position of Offensive Vapours arising in certain Processes from the latter.
Year: 1820

page_text: Arrangements in Furnaces and Boilers for Decom-
position of Offensive Vapours arising in certain
Processes from the latter.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, PHILLIPS
LONDON the younger, of Cannon Street, in the City of London, Practical
Chemist, send greeting.
WHEREAS His late most Excellent Majesty King George the Third, did,
by His Letters Patent under the Great Seal of Great Britain, bearing date
at Westminster, the Twenty-fifth day of January, One thousand eight hundred
and twenty, in the sixtieth year of His reign, give and grant unto me, the
said Phillips London, my exors, adñors, and assigns, His especial licence,
full power, sole privilege and authority, that I, the said Phillips London, my
exors, admors, and assigns, should and lawfully might, during the term of years
therein expressed, make, use, exercise, and vond, within that part of the United
Kingdom of Great Britain and Ireland called England, the Dominion of
Wales, and Town of Berwick upon Tweed, my Invention of "A METHOD
OF DESTROYING OR DECOMPOSING THE OFFENSIVE VAPOUR ARISING FROM ANIMAL OR
VEGETABLE MATTER, WHEN HEATED;" in which said Letters Patent there is
contained a proviso that if I, the said Philips London, should not particu-
larly 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 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

page_text: 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
Phillips London, do hereby declare that the nature of my said Invention, and
the manner in which the same is to be performed, are particularly described
and ascertained in and by the Drawing hereunto annexed, and the following
description thereof (that is to say):-
My Invention of a method of destroying or decomposing the offensive vapour
arising from animal or vegetable matter, when heated, is described and ascer-
tained in manner following (viz') :-
The pan, boiler, vessel, or other apparatus in which animal or vegetable
matter is to be heated, and from which offensive fumes or vapours arise or are
emitted, is to be made and fixed up in the usual and customary manner in
brickwork or masonry, except that the surface or that part of such pan, boiler,
vessel, or other apparatus from which offensive fumes or vapours arise or
are emitted, is to be enclosed by means of bricks, metal, or other materials
capable of confining such offensive fumes or vapours; from such inclosed
part a communication by means of a flue or flues is to be made with the ash
pit of the pan, boiler, vessel, or other apparatus from which offensive fumes or
vapours arise or are emitted, or with the ash pit or under part of any other
fire-place, for the purpose of conveying such fumes or vapours to such ash pit
or under part of the fire-place. The said ash pit or under part of the fire-
place, is to be furnished with a door or other convenient means of excluding
the external air when required, in which said inclosure one or more opening
or openings is or are to be made, furnished with doors or other convenient
means of either excluding or admitting the external air, as may be required,
which opening or openings is or are to be constructed as to afford facility for
the usual manipulations during the process, as well as for filling, adding to, or
discharging such pan, boiler, vessel, or other apparatus. When it is re-
quired to destroy or decompose such offensive fumes or vapours, the ash pit or
under part of the fire-place which communicates with the enclosure is to be
closed, and the external air, for the support of the fire, admitted thro' one or
more of the openings in the enclosure, which air entering the said enclosure,
and passing, by means of the flue or flues, to the ash pit or under part of the
fire-place, takes with it all the offensive fumes or vapours which, together with
the air admitted at such opening or openings, pass thro' the fire, and thereby
become decomposed or destroyed, and at the same time add considerably to
the effect of the fire; and for the convenience of working any pan, boiler,
yessel, or other apparatus, the whole or part of the enclosure may be made

page_text: moveable, in which case it may be found most convenient to have such move-
able part made of metal, so formed that it may be readily replaced when
necessary. The letter A, A, in the annexed Drawing, shews the pan or boiler;
B, B, shews a raised curb of brickwork; C, C, doors to the openings in the
brickwork; D, door of the fire-place; E; door of the ash pit; F, ash pit;
G, G, G, flue communicating from the surface of the pan or boiler to the ash
pit; H is the cover to fit upon the top of the raised curb, to form an inclosure
over the pan or boiler; I shews the chimney.
In witness whereof, I, the said Phillips London, have hereunto set my
band and seal, this Eighteenth day of March, One thousand eight
hundred and twenty.
(L.S.) PHILLIPS LONDON, Jun'.
Signed, sealed, and delivered, by the
within-named Phillips London in
the presence
of
HENRY JOHN ADAMS,
TTT
T
vraren,
the year of our Lord 1820, the aforesaid Phillips London the younger 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 for that purpose.
Inrolled the Eighteenth day of March, in the year of our Lord One
thousand eight hundred and twenty.