IMPROVEMENTS IN SMOKE CONSUMING APPARATUS FOR STEAM BOILER AND OTHER FURNACES
Year: 1884

page_text: I, DAVID MORRIS, of Carnoustie in the county of Forfar, North Britain Vegetable
Preserver do hereby declare the nature of the said invention for "IMPROVEMENTS
IN SMOKE CONSUMING APPARATUS FOR STEAM BOILER AND OTHER FURNACES" to
be as follows:-
This Invention relates to improvements in smoke consuming apparatus for steam
boiler and other furnaces or fireplaces, and has for its object the conducting of a
current of highly heated air to the fire to consume the smoke arising therefrom and
to assist combustion.
The Invention consists in arranging a pipe within the flue which surrounds the
boiler, in a Cornish boiler for example, the external air entering the pipe at the one
side of the front of the furnace and being drawn through the pipe, issues into the
fire at the other side of the front of the furnace, the air having been caused to
travel through the pipe round the length of the boiler and thereby become highly
heated.
In applying this arrangement to existing boilers the end or outlet portion of the
pipe may be formed with an arm so as to be connected with the front of the furnace,
the said portion of the pipe being preferably formed as a flat casting so as to lie
close against the furnace plates, the fire door being preferably arranged so as to
project outwards to provide room at its side for inserting the pipe. In this case it
is preferable to cover the casting with suitable non-conducting material to avoid
the cooling of the air by the exposure to the atmosphere of this portion of the pipe.
In lieu of this arrangement the pipe may enter the fireplace through the side of
the boiler preferably below the water line in which case the pipe will not be
conspicuous.
In order to regulate the current of air passing through the pipe or to stop the
current altogether if required, the pipe may be provided with a valve preferably at
its inlet at the front of the furnace and the said valve may be so connected with

page_text: the fire door that the opening of the same will open the valve to admit a current
of heated air to the fire or. the said valve may be provided with clockwork
mechanism so as to cause the valve to open or close at any particular periods or for
any required length of time.
It is to be understood that the herein before described arrangements can be
adapted to fire places generally, in which the products of combustion can be
employed to heat the air within the pipe.

page_text: עע URL
I, DAVID MORRIS of Carnoustie in the County of Forfar, North Britain, Vegetable
Preserver do hereby declare the nature of my said invention for IMPROVEMENTS
IN SMOKE CONSUMING APPARATUS FOR STEAM BOILER AND OTHER. FURNACES and
in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement :-
My Invention relates to improvements in smoke consuming apparatus for steam
boiler and other furnaces or fireplaces, and has for its object the conducting of a
current of highly heated air to the fire to consume the smoke arising therefrom and
to assist combustion.
The Invention consists in arranging a pipe within the flue which surrounds the
boiler, in a Cornish boiler for example, the external air entering the pipe at the one
side of the front. of the furnace and being drawn through the pipe, issues into the
fire at the other side of the front of the furnace, the air having been caused to
travel through the pipe round the length of the boiler and thereby become highly
heated.
In applying this arrangement to existing boilers the end or outlet portion of the
pipe may be formed with an arm so as to be connected with the front of the furnace,
the said portion of the pipe being preferably formed as a flat casting so as to lie
close against the boiler plates, the fire door being preferably arranged so as to
project outwards to provide room at its side for inserting the pipe.
In this case. it is preferable to cover the casting with suitable non-conducting
material to avoid the cooling of the air by the exposure to the atmosphere of this
portion of the pipe. In lieu of this arrangement the pipe may enter the fireplace
through the side of the boiler preferably below the water line in which case the
pipe will not be conspicuous.
In order to regulate the current of air passing through the pipe or to stop the
current altogether if required, the pipe may be provided with a valve preferably at
its inlet at the front of the furnace and the said valve may be connected with the
fire door that the opening of the same will open the valve to admit a current of
heated air to the fire; or the said valve may be provided with clockwork mechanism
so as to cause the valve to open or close at any particular periods or for any
required length of time.
It is to be understood that the hereinbefore described arrangements can be adapted
to fire places generally, in which the products of combustion can be employed to
heat the air within the pipe.
In order that my said Invention may be most fully understood and readily
carried into effect, I will proceed to describe the drawings hereunto annexed.
Figure 1 is a side elevation of a cornish boiler provided with smoke consuming.
apparatus constructed according to my present Invention, the "setting" of the
said boiler being shewn in longitudinal section.
Figure 2 is a plan of the same the "setting" being represented in horizontal
section.
Figure 3 is a front end elevation, and Figure 4 a rear end elevation of the same
the "setting" in Figure 4 being represented in transverse section.
Figures 5, 6, 7 and 8 are views of a Lancashire boiler, respectively corresponding
to Figures 1, 2, 3 and 4 hereinbefore described.

page_text: In applying my present Improvements to the furnace of a Cornish boiler as
represented at Figures 1 to 4 (inclusive) I arrange the pipe a, with its end b, open
to the atmosphere and passing through the front wall c, of the boiler "setting
into the flue d. This flue d, surrounds the boiler and the pipe a, passes along
one side, across the end, and along the opposite side of the boiler, the end f, of the
pipe a, extending out through the wall c, at which part the said pipe is closed to
the external atmosphere. From the end f, of the pipe a, the branch pipe g, is led
into the side of the furnace-door frame, and the said branch pipe g, may, if
desired, be formed as a flat casting so as to lie close against the boiler front. Under
this latter form of construction, it is preferable to cover the said casting with suit-
able non-conducting material to avoid, as much as possible, the exposure of the
heated air to the cooling influence of the atmosphere.
In order to regulate the quantity of heated air passing through the pipe a, or, if
required, to stop the current altogether, the pipe a, may be provided with a valve
or damper, preferably at that part, which in its continuation, forms the branch
pipe g.
This valve, the handle for operating which is represented at i, may be
opened or closed by hand; or it may be connected with the fire-door j, by-link-
work for opening or closing it as is well understood; or the said valve i, may be
operated by. clock work so as to cause the said valve to open or close at any
particular periods or for any required length of time, the means employed for
opening or closing the said valve forming no part of the present Invention.
The application of my present Invention to the requirements of a Lancashire
boiler is shewn at Figures 5 to 8 (inclusive) of the annexed drawings. At these
figures of drawing it is seen that the pipe a, is passed around the boiler k, and
conveys currents of heated air to one of the furnaces in a manner similar to that
hereinbefore set forth with reference to Figures 1 to 4 (inclusive) of the annexed
drawings, but, for the conducting of the currents of heated air to the other or
second furnace, a further branch pipe 7, is provided. This branch pipe 7, is passed
under the boiler k, and out through the front wall c, of the boiler setting where it
is connected with the furnace and is provided with a valve i, in a manner similar
to that and for the purposes hereinbefore set forth.
:
In lieu of conducting the highly-heated air into the furnace by means of a pipe
passing in front of the boiler setting, a pipe may enter the fireplace through the
side of the boiler, preferably below the water line, and at the back of the wall c.
A suitable door may, if required, be provided upon the open end b, of the pipe a; so
as to close it when necessary.
It is to be understood that the herein before described arrangements can be
adapted to fire places generally, that is to say, to all those in which the products
of combustion can be employed to heat the air within the pipe a.
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 arrangement or construction of apparatus for heating air by the products of
combustion, and for causing such heated air to be delivered into the furnaces of
boilers or other fire-places in regulated quantity substantially as hereinbefore
described and shewn upon the annexed drawings.