AN IMPROVED SMOKE- CONSUMING APPARATUS OR FURNACE
Year: 1858

page_text: LETTERS PATENT to Julien François Belleville, of Paris, in the French
Empire, Civil Engineer, for the Invention of "AN IMPROVED SMOKE-
CONSUMING APPARATUS OR FURNACE."
"
Sealed the 21st January 1859, and dated the 24th July 1858.
PROVISIONAL SPECIFICATION left by the said Julien François Belleville
at the Office of the Commissioners of Patents, with his Petition, on the
24th July 1858.
I, JULIEN FRANÇOIS BELLEVILLE, of Paris, in the French Empire, Civil
Engineer, do hereby declare the nature of the said Invention for "AN IMPROVED
SMOKE-CONSUMING APPARATUS OR FURNACE," to be as follows:-
This apparatus consists of two sets of fire bars, one large set composed of
louvre-like bars inclined at an angle of about 45° with a space for the
admission of air between every two bars; the other and smaller set are placed
horizontally at the bottom of the inclined louvre bars.
The large set of bars consists of metal laths or strips arranged stepwise over
cach other, so as to form a plane sufficiently inclined to allow of the fuel
employed falling by gravitation. It is important that every lath or plate in
the series should project as little as possible beyond that placed immediately
above it; and in order to facilitate the descent of the fuel, the square edges on
the top surface of each plate are bevelled off. The front surfaces of the inclined
louvre fire bars or grating lie in the same plane which has the degree of
inclination desired. A feed hopper is fixed over the inclined grating, and
should be kept supplied while the furnace is at work. Flues are made in the

page_text: brickwork of the apparatus for the admission, through regulating valves, of
air, which becomes heated in its passage, and is admitted through the openings
between the louvre bars and into the upper part of the apparatus to obtain as
perfect combustion as may be. Between the bottom of the louvre bars o
grating and the horizontal bars there is a stopper or door, through which to
remove any clinkers without stopping or interfering with the working of the
furnace.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Julien François Belleville in the Great Seal Patent Office on
the 24th January 1859.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JULIEN
FRANÇOIS BELLEVILLE, of Paris, in the French Empire, Civil Engineer, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-fourth day of July, in the year of our Lord
One thousand eight hundred and fifty-eight, in the twenty-second year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me, the
said Julien François Belleville, Her special licence that I, the said Julien
François Belleville, my executors, administrators, and assigns, or such others
as I, the said Julien François Belleville, my executors, administrators, and
assigns, should at any time agree with, and no others, from time to time and
at all times thereafter during the term therein expressed, should and lawfully
might make, use, exercise, and vend, within the United Kingdom of Great
Britain and Ireland, the Channel Islands, and Isle of Man, an Invention for
"AN IMPROVED SMOKE-CONSUMING APPARATUS OR FURNACE," upon the condition
(amongst others) that I, the said Julien François Belleville, my executors
or administrators, by an instrument in writing under my, or their, or one
of their hands and seals, should particularly describe and ascertain the nature
of the said Invention, and in what manner the same was to be performed, and
cause the same to be filed in the Great Seal Patent Office within six calendar
months next and immediately after the date of the said Letters-Patent
NOW KNOW YE, that I, the said Julien Francois Belleville, do hereby
declare the nature of my said Invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement thereof, reference being had to the Drawings hereunto annexed, that
is to say :-

page_text: This apparatus consists of two sets of fire-bars, one large set composed of
louvre-like bars arranged so that their edges all lie in a plane inclined at an
angle of about 45°, with a space for the admission of air between every two
bars, the other and smaller set are placed horizontally at the bottom of the
inclined louvre bars.
The large set of bars consists of metal laths or strips arranged stepwise over
each other, so as to form a plane sufficiently inclined to allow of the fuel
employed falling by gravitation. It is important that every lath or plate in
the series should project as little as possible beyond that placed immediately
above it; and in order to facilitate the descent of the fuel, the square edges on
the top surface of each plate are bevelled off. The front surfaces of the
inclined louvre fire-bars or grating lie in the same plane which has the
degree of inclination desired. A feed hopper is fixed over the inclined
grating, and should be kept supplied while the furnace is at work.
Flues are made in the brickwork of the apparatus for the admission through
regulating valves of air which becomes heated in its passage and is admitted
through the openings between the louvre bars, and into the upper part of the
apparatus to obtain as perfect combustion as may be. Between the bottom of
the louvre bars or grating, and the horizontal bars, there is a stopper or door
through which clinkers may be removed without stopping or interfering with
the working of the furnace.
Figure 1 of the accompanying Drawings is a front elevation of a smoke-
consuming apparatus or furnace constructed according to this Invention ;
Figure 2 is a longitudinal section of the same through the line A, B, of
Figure 1, and Figure 3 is a section, in plan, through the line C, D, of Figure 2..
A, A', are the two side casings of the apparatus, supported by tie pieces a, b,
and fixed to the brickwork by bolts c, c'; B is the feed hopper placed above
the larger set of fire bars C, and fixed to the side casings A, A', by bolts d, d;
D. D, are side supports for the larger set of fire bars C, and are fixed to the
brickwork of the apparatus by bolts e, e. The bottom bar of the larger set of
fire bars rests upon a bridge G in the ash-pit; E is the smaller set of fire.
bars, and F, F, are supports for the same; H is a stopper or door between
the two sets of fire bars, through which clinkers can be removed without.
interfering with the working of the apparatus; I is the ash-pit; J is a crown
piece to facilitate the combustion of the fuel; K is the door of the ash-pit;
I. is the back of the furnace inclined at an angle of about 45°. 9, 9; are
orifices for the admission into the apparatus of hot air from flues N and O. O,
made in the brick work of the apparatus; the quantity of air admitted from
such flues being regulated by valves P, P.

page_text: And having now declared the nature of my said Invention, and in what
manner the same may be performed, I declare that I claim,―
First, the construction of smoke-consuming apparatuses or furnaces with
fire-bars arranged stepwise over each other so as to form an inclined plane, an.l
thereby allow of the fuel falling by gravitation essentially as herein-before
described and illustrated in the accompanying Drawings.
Secondly, the construction of furnaces with a stopper or door through which
clinkers can be removed without interfering with the working of the furnace,
essentially as herein-before described and illustrated in the accompanying
Drawings.
Thirdly, the construction of furnaces with flues for the admission of hot air
formed and arranged essentially as herein-before described and illustrated in
the accompanying Drawings.
In witness whereof, I, the said Julien Francois Belleville, have hereunto
set my hand and seal, this Twentieth day of January, One thousand
eight hundred and fifty-nine.
Witness,
CH. ARMENGAUD,
Ing Civil,
Bouley de Strasbourg, No. 23,
à Paris.
J. F. BELLEVILLE. (I..S.)