Improvements in or relating to Smoke Consuming Furnaces.
Year: 1897

page_text: PROVISIONAL SPECIFICATION.
Improvements in or relating to Smoke Consuming Furnaces.
I, JOSEPH SCHÖRERL, of Uittwa, Bohemia, in the Empire of Austria, Master-
mason, do hereby declare the nature of this invention to be as follows:
The present invention relates to smoke consuming furnaces which differ from
cther hitherto known smoke consuming furnaces by its extreme simplicity cheap-
ness of manufacture absolute safety in working, as well as by the ease with which
it may be adapted to already existing furnaces.
A complete combustion of smoke and combustion-gases is effected in this
furnace, firstly by the arrangement of a free or central arc between a depositing
baffle or arch and the grate then by providing passages through which air having
a large proportion of oxigen is continuously and automatically supplied from the
outside to the combustion gases inside the furnace.
The gases developed by combustion on the grate. (say a stepped grate) rise
against the arched ceiling their volume being diminished or compressed by the
free arch. When passing downwards through the shaft formed by this arch and
the rear arch or back of the furnace, the smoke is mixed with the fresh air, con-
taining oxigen, arriving through transverse passages with openings into the
furnace said air being at the same time heated, and together with the gases passes
under the rear arch, the air and smoke mixture being brought in contact with the
flame at a fire-bridge or plate at the back of the grate, whereby a complete com-
bustion of all the combustible substances is effected, so that finally only non-
combustible and colourless gases escape into the flue or chimney.
The air-passages are arranged on both sides of the furnace and come together
at the back, over the latter into one passage, which by means of several small
openings directly communicates with the interior of the furnace so that at these
places a rarefaction of air is caused by the heat, in consequence of which the cold
outer air is drawn in and mixes with the smoke and other gases inside the furnace."
Dated this 22nd day of January 1897.
BOULT & WADE
Agents for the Applicant.
"Improvements in or relating to Smoke Consuming Furnaces.”
JOSEPH SCHÜBERL, of Uittwa, Bohemia, in the Empire of Austria, Master-mason,
do hereby declare the nature of this invention and in what manner the same is to
be performed, to be particularly described and ascertained in and by the following
statement:-
The present invention relates to a smoke-consuming furnace which differs from
other hitherto-known smoke-consuming furnaces by its extreme simplicity cheap-

page_text: ness of manufacture, absolute safety, in working as well by the ease with which
the invention may be adapted to already existing furnaces.
My invention is illustrated in the accompanying drawing in which
Fig. 1 is a longitudinal section on line z-z of Fig. 2.
Fig. 2 a combined cross section on the lines - and y-y of Fig. 1 and
Fig. 3 a plan.
A complete combustion of smoke and combustion gases is effected in this
furnace firstly by the arrangement of a free or central arch 6 between a depending
Laffle or arch c and the grate d (Fig. 1) then by providing passages a through
which air having a large proportion of oxygen is continuously and automatically
supplied from the outside to the combustion gases inside the furnace.
The gases developped by combustion on the grate d (say a stepped grate) rise
against the arched rooff their volume being diminished or compressed by the free
arch b. When passing downwards through the shaft formed by the arches b and c
the smoke is mixed with the fresh air, containing oxygen, arriving through
passages a opening into the furnace (Fig. 2) said air being at the same time
heated, and together with the gases passes under the rear arch or baffle c the air
and smoke mixture being brought in contact with the flame at a fire-bridge or
plate at the back of the grate d whereby a complete combustion of all the com-
bustible substances is effected, so unat finally only non-combustible and colourless
gases escape into the flue or chimney.
The air passages a are arranged on both sides of the furnace and meet at the
back over the latter and form one passage which by means of several small
openings communicates directly with the interior of the furnaces so that at
these places a rarefaction of air is caused by the heat, in consequence of which
the cold outer air is drawn in in the direction of the arrow and mixes with the
smoke and other gases inside the furnace.
Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be performed I declare that what I claim is;-
-
1. A smoke consuming furnace characterised by the arrangement of a free arch
as b and a second arch or baffle as c inside the furnace the free arch compressing
the combustion gases rising from the grate against the roof of the furnace thence
they pass into a shaft or passage formed by the two arches into which shaft fresh
air enter in a heated state through air passages above the free arch and mixes with
the combustion gases which pass into the flame at the fire bridge e arranged under
the second arch substantially as described.
2. The combination and arrangement of parts constituting the complete smoke
consuming furnace substantially as described and illustrated in the accompanying
drawings.
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