Improvements in the Method of and Apparatus for Consuming Smoke.
Year: 1889

page_text: Date of Application, 11th July, 1889
Complete Specification Left, 11th Apr., 1890-Accepted, 17th May, 1890
PROVISIONAL SPECIFICATION.
Improvements in the Method of and Apparatus for Consuming
Smoke.
I, FREDERICK THOMAS SCHMIDT, of Hustlergate, Bradford in the County of York,
Electrical Engineer, do hereby declare the nature of this invention to be as
follows:-
This invention relates to certain improvements whereby the smoke leaving the flues
of steam boilers and other furnaces or chimneys, may be consumed by an apparatus
constructed independently of the boiler or furnace, and placed in a suitable position
and in such a manner that the smoke on being conveyed into the apparatus is ignited,
and the heat therefrom may be conveyed and utilized for generating steam in boilers
or for other purposes for which heat is required.
I accomplish my object in the following manner: I form a suitable receptacle
having one or more tubes or channels through the same, and around which is placed
a fire of coke or other suitable fuel for heating the receptacle and pipe or pipes
therein.
The receptacle is enclosed within a casing in such a manner that a space is left
between them, suitable openings being made at or near the bottom for admitting
atmospheric air to the said space for the purpose hereinafter described.
The grate bars supporting the before mentioned fire within the receptacle may be
flat or at an incline to the each tube or channel, to which the smoke is conveyed by
pipes from the boiler furnace, flue, or chimney stack: and by the tubes or channels
being heated a current of air is caused to pass through the same, conveying with it the
smoke, which is combined with the air on passing through; so that before or by the
time the combination reaches the top, it is converted into inflammable gas which is
more or less ignited by the heated tubes or channels, or fire; and in order to more
completely ignite the gas, the same is diverted on its escape from the tubes or channels
and amalgamated with the air passing through the space between the receptacle and
outer casing, thereby causing complete combustion; the heat from the apparatus
obtained in the manner described may be conveyed by suitable pipes and utilized for
heating purposes.
1
1000
COMPLETE SPECIFICATION.
Improvements in the Method of and Apparatus for Consuming
Smoke.
I, FREDERICK THOMAS SCHMIDT of Hustlergate, Bradford, in the County of York,
Electrical Engineer, 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:
This invention relates to certain improvements whereby smoke on leaving the flues
of steam boilers or other furnaces may be consumed or converted into heat by an
apparatus constructed apart from the boiler or furnace and so arranged that it may be
placed in any suitable position between the boiler or other furnace and chimney stack,
in such a manner that the smoke is conducted to the apparatus where it is ignited or

page_text: :
purposes.
In the accompanying drawings
Fig. 1. represents a front view of the exterior of an apparatus suitable for carrying
out my object.
Fig. 2. is a vertical section through line 1. 2.
Fig. 3. a vertical section at right angles to Fig. 2. through line 3. 4. and
Fig. 4. is a plan through irregular line 5. 6.
The invention is illustrated as it may be applied to a tubular boiler, but it will be
apparent to engineers and others conversant with heating furnaces, that the heat
generated in the apparatus as hereinafter described may be utilized for other purposes
besides that illustrated and fully described.
Upon the frame plate A. rest one end of a series of fire grate bars B. which may
be level or inclined as shown, the opposite ends of the bars being supported by the
inner ring A¹ of the frame plate, upon which also rests the vertical tube or channel C.
connected at its bottom end by a tube C" to some portion of a flue between the end of
one or more furnaces and the bottom of a chimney stack, the opening between the said
flue and chimney when the apparatus is in operation being closed by means of
an ordinary damper.
Upon the frame plate A. is built suitable brickwork D. for enclosing my apparatus
and forming a chamber in which the heat may be utilized, such as for generating
steam, the boiler shown being one of the ordinary well known tubular type supported
by a frame built in the brickwork.
The smoke passing through the tube C. connected to the main flue leading to the
chimney stack may continue its course unobstructed and combine with the heat rising
from the fire on grate bars B. by which it is ignited and consumed, but not so
thoroughly as when a deflecting plate E. is suspended or otherwise supported above
the tube C. such deflector being by preference concave on the underside and entirely
composed or coated with ganister fire clay or other refractory material F. as is also
the exterior surface of the tube C. at F¹.
The grate bars in the space G. between the central tube or channel C. and brick-
work D. are covered with fire, fed with coke or other fuel distributed through the
doors H. H. or when provided with a deflecting plate E. the fuel may be thrown upon
the upper or convex side of the deflector, which somewhat distributes it on to the bars
below, the doors J. J. being for the purpose of agitating and cleaning the fire
whenever required.
On a fire being made in the space G. the central tube or channel C. is heated to
redness, and on smoke being admitted thereto from a boiler or other flue by means of
the connecting tube C. the smoke is heated in the said tube, and on its escape from
the top of same combines with the heated gases from the fire in space G. and is
converted into inflammable gas and ignited, or when a deflecting plate E. is placed
above the end of tube C. the smoke impinging on the same is further heated and
deflected through the annular space K. between overhanging deflecting plate E. and
top of tube or channel C. thus causing the heated smoke to more thoroughly combine
with the heated gases from the fire in space G. by which it is ignited and consumed or
converted into heat which may be utilized for generating steam in a boiler placed in
the same chamber L. as shown, or in a separate chamber connected by a flue; or the
heat may be utilized for other purposes such as the annealing of metals and the like
placed in ordinary annealing chambers connected by a suitable flue or channel to the
chamber L. above the deflecting plate E.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same may be performed, I declare that what I
claim is :-
1. The combination of a central tube or channel C. a deflecting plate E. fire in
space G. and connecting flue tube C¹ with the flue of a boiler or other furnace

page_text: substantially in the manner and for the purpose as hereinbefore described and
illustrated.
2. The combination of a smoke flue with central tube C. and fire in the space G.
arranged in the manner and for the purpose herein before set forth.
Dated this 10th day of April 1800
JOHN WAUGH,
Agent.