IMPROVEMENTS IN APPARATUS FOR CONSUMING SMOKE AND SAVING FUEL
Year: 1884

page_text: JOHN CORNFORTH 210 Burbury Street Lozells Aston Juxta Birmingham Iron
Founder and Smoke Consuming Apparatus Manufacturer do hereby declare the
nature of my Invention for IMPROVEMENTS IN APPARATUS FOR CONSUMING
SMOKE AND SAVING FUEL to be as follows:-
:-
This Invention consists of a combination of passages made and formed for use in
conjunction with hot air, cold air, smoke or other vapour and in conjunction with
boilers stoves, muffles and furnaces of various shapes for the purpose of consuming
smoke and thus saving fuel.
In using my Invention and carrying out the same, I in some cases introduce
two tubes, one on each side of the boiler or furnace ash pit; for the purpose of
conveying cold air near the bridge: the said bridge being made preferably of iron,
or it may be made of other suitable material, the said bridge is provided with a'
flap at the end of the furnace bars. I provide a wall or partition in the end of.
the ash pit, leaving a cavity behind it. I also fix a door in the front of the said
wall or partition. Cold air enters the said door and rising to the bridge is
introduced thereto by means of the beforementioned flap the cold air conveyed
near the bridge by means of the two tubes (one on each side of the boiler) is also
introduced to the bridge by means of the said flap. I connect the flap in the
bridge to the door in the wall or partition, in such a manner that when the door is
opened to introduce air, the flap will also open and thus leave a clear passage for
the cold air entering at the said door and at the beforementioned tubes to enter
the bridge, where it is heated to a combustion temperature and passed off at the
top of the bridge through a perforated plate continuing its course through the flue,
chimney or funnel that may be provided for that purpose; the perforated plate acts
as a safeguard to prevent ashes or other matter falling into the cavity of the bridge
to fill it up and thus prevent the proper action of the flap.
I
To regulate the amount of air going into the bridge Ì open or shut the door in
wall or partition.
.
To regulate the supply of air conveyed near the bridge by means of the
tubes; I fix a cap or stopper at the end of each tube, in front of the ash pit, that is
to say at the inlet ends, the said stoppers are provided with tapered flutes, through
which air passes into the said tubes and thence near the bridge, by drawing out or
pushing in the said stoppers, the supply of air can be regulated for perfect
combustion.

page_text: I JOHN CORNFORTH 210 Burbury Street Lozells Aston Juxta Birmingham
Iron Founder and Smoke Consuming Apparatus Manufacturer do hereby declare
the nature of my Invention for IMPROVEMENTS IN APPARATUS FOR CONSUMING
SMOKE AND SAVING FUEL and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement :-
This Invention consists of a combination of air passages, and smoke passages
made and formed in furnaces for use in conjunction with hot air, cold air, smoke
or other vapour, and in conjunction with, boilers stoves and muffles of various
shapes for the purpose of consuming smoke and thus saving fuel,
In using my Invention and carrying out the same, in some cases introduce two
tubes, one on each side of the boiler, or furnace ash pit; for the purpose of
conveying cold air into the bridge. The bridge is made preferably of iron or it
may be made of other suitable material, it is provided with a flap at the end of the
furnace bars; I provide a wall or partition in the end of the ash pit, leaving a
cavity for the purpose of receiving cold air. I also fix a door in the front of the
wall or partition to take in and regulate the amount of air required.
I connect the flap in the bridge to the door in the wall or partition, in such a
manner that when the wall door is opened by a convenient handle the flap will
also open.
The cold air enters at the main door, and rises into the bridge, where it is
heated to a combustion temperature and passed off at the top of the bridge through
a perforated plate, the perforated plate acts as a safeguard, to prevent ashes or
other matter falling into the cavity of the bridge to fill it up, and thus prevent the
proper action of the flap.
To regulate the amount of air going into the bridge, I fix a cap or stopper at the
end of each tube, in front of the ash pit near the furnace door.
The said stoppers are provided with tapered flutes, through which air passes into
the tubes and thence into the bridge, by drawing out or pushing in the said
stoppers, the supply of air can be regulated for perfect combustion.
I will now proceed to describe with reference to the accompanying Drawings the
manner in which the apparatus is constructed and used.
Fig. 1 is a side elevation of a boiler with the apparatus fixed in working
order.
Fig. 2 is a section at A B representing a view of the front wall or partition r
with the door in it, also the inlet air supply tubes and fire bars.
Fig. 3 is a section at CD representing a front view of the flap together with
inlet air tubes.
Fig. 4 is a section at E F representing the back wall or partition S at the end of
ash pit shewing also the outlet perforations n' n².
Fig. 5 is an elevation (enlarged) of the inlet tube H and fluted stopper J.
Fig. 6 represents sections of the fluted stopper J.
The apparatus is shewn fixed to a Cornish boiler, but can be fixed to boilers,
stoves and muffles of various shapes, and when so fixed would operate in the
following manner.
By pulling the handle a the door b would be opened as represented, to admit a
volume of air into the space or chamber in hollow bridge the said space or chamber c
being of necessity at a high temperature in consequence of its position in conjunction
with the furnace-bars, the air entering at door b would get heated and expand,
some would pass under the flap in the direction of the arrows. e. f. and coming in
contact with the perforated baffle plates i. j. k. l. m would be retarded in its
progress; divided into particles eventually passing out at the openings as shewr

page_text: 1 2 3 4 5 6 7 8
at n Fig. 1 and n¹ n² Fig. 4. Other portions of the air entering at door b would
rise in the direction of the arrows g h and pass through the holes 0 0 0 0 0 0 0 0 0
shewn in flap at Fig. 3 and thence through a series of holes in the top plate or
cover or bridge as shewn by the arrows p p² p²; a portion of the heated air would
pass over the edge of top plate or cover as represented at arrow q.
The air in its passage from the door 6 would in the manner hereinbefore
described remain in the chamber or hollow bridge G a sufficient length of time to
get intensely hot, eventually passing out from both sides of the flap d in the
direction of the arrow n superheated and subdivided into minute particles; this
subdivision is one of the great points to be attained in the consumption of smoke,
each atom of heated oxigen rushing onward with the accumulated speed produced
by rarification and expansion comes in contact with an atom of smoke (viz. carbon)
of the precise relative magnitude to produce from the friction" ignition and
thence combustion; thus by my method of baffleing and subdividing the air I
produce a greater number of atoms of heated carbon, hence a greater number of
ignitions consequently a greater number of seperate explosions and of necessity a
more perfect consumption of smoke than can be obtained by other known
methods.
The door and flap arrangement is specially adapted for admiting a large volume
of air quickly into the hollow bridge or chamber G when so doing is an advantage,
which may be the case at the time of firing, to counteract the volume of cold air
entering at the furnace door.
At other times the main supply of air can be obtained through the tubes H
which would be delivered into the hollow bridge or chamber G at g, passing up in
1 2 3 4 5 6 7 8
the direction of the arrows g, h, through the holes 000 000 000 in flap.
The door in some cases could be entirely closed the supply of air could then be
regulated by drawing out or pushing in the fluted stoppers in connection with the
inlet air tubes H as shewn in detail at Figures 5 & 6 the supply of air could also
be regulated by the use of both the stoppers in tubes, and the moving door.
I am fully aware that it is not new to provide hollow bridges supplied with air
by various methods, some of which are more or less efficatious in consuming smoke
but 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
1 The combination of a hollow bridge in which is a moveable flap, the said flap
being provided with perforated baffle plates, the main plate of the said flap also
being perforated the back plate or wall of the hollow bridge being provided with
perforated baffle plates, the flap being connected to a door, and the door connected
to and operated by a rod with a convenient handle at the end thereof; as
illustrated and described.
2nd Tubes for supplying air to the bridge, the said tubes passing in an angular
direction near the fire into the hollow bridge at y Fig. 1; as illustrated and
described.
3rd Stoppers with tapered flutes for regulating the supply of air into tubes at H
as illustrated and described.