Burning Breeze and Inferior Fuel.
Year: 1885

page_text: Burning Breeze and Inferior Fuel.
"
I, WALTER ROBERTS JONES of the Gas Works, Rome, Italy, Gas Engineer, do
hereby declare the nature of my invention for "IMPROVEMENTS IN DUPLEX
FURNACES SPECIALLY ADAPTED FOR BURNING BREEZE AND INFERIOR FUEL and
in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement, reference being bad to the accom-
panying drawings and to the letters and figures marked thereon, that is to say :-
The object of this invention is to strengthen and simplify the construction of
furnaces generally, but particularly for those used in heating gas retorts and
specially adapted for burning breeze or other fuel of an inferior or low quality,
and is based upon an invention for which Letters Patent N° 11,650 dated Aug 26.
1884 were granted to me.
In furnaces constructed according to the present invention and upon what I call
the duplex principle, I place one furnace over the other, but having communications
between by openings, flues, or nostrils formed alternately on either side of the
upper part of the lower furnace, and the lower part of the upper furnace, or the
said openings, flues or nostrils may be placed in line along the centre of the division
between the upper and lower furnaces. In this invention I have abandoned the
whole of the air passages running backwards and forwards in a lateral direction,
both as regards the upper and lower furnaces as described in the specification of
the Patent above referred to. By these means the construction is simplified and
the cost reduced, in the ratio of the reduction of the special bricks or lumps required
to form the furnaces.
In order that these further improvements may be understood drawings are
attached hereto, in which Fig. 1 represents a vertical transverse sectional eleva-
tion through A, B Fig. 2, which is a longitudinal sectional elevation through C, D,
of Fig. 1, while Fig. 3 is a sectional plan through E, F Fig. 2, and Fig. 4 is an
elevation of the front of the furnace. In each Fig. I is the lower furnace and
J the upper furnace having communication with each other by the openings, flues
or nostrils N formed on each side alternately in the lower part or floor of the upper
furnace J, and the upper part or roof of the lower furnace I.-Figs. 5. 6. 7 and 8
exhibit similar views of the same apparatus constructed with openings, flues or

page_text: nostrils in a line with each other in lieu of the alternate arrangement before
described.
The action of the apparatus is exceedingly simple. The lower furnace I is
supplied first with ordinary fuel which is lighted and the upper furnace is then
supplied with coke, small coke or breeze. The heat raised by the lower furnace is
soon imparted to the upper one, and the carbonic acid and other gases evolved in
the lower furnace, pass upwards through the openings, flues or nostrils N and
through the heated fuel in the upper furnace J and in their passage the carbonic
acid takes up another atom of carbon and becomes converted into carbonic oxide,
which when mixed with atmospheric air in the upper furnace produces vigourous
combustion and in that state passes through the various openings, and surround
the retorts thereby heating them to the required temperature. When both furnaces
are well alight the upper one only is supplied with fuel, that fuel being principally
breeze, and the lower furnace is dependent for its supply of fuel from what drops
from the upper one through the openings, flues or nostrils N before mentioned.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is
The construction of duplex furnaces with openings, flues or nostrels arranged as
herein described and shown on the drawings.