Improvements in Stoves.
Year: 1888

page_text: Date of Application, 4th June, 1888
Complete Specification Left, 4th Mar., 1889
Complete Specification Accepted, 6th Apr., 1889
Improvements in Stoves.
I GUILLAUME EMMERECHTS of 19 rue von Ortevelde Brussels in the Kingdom of
Belgium Stove inanufacturer do hereby declare the nature of this invention to be as
follows:-
A stove according to this invention is constructed with means for regulating the
supply of air employed to support combustion and an independent supply of air is
caused to circulate in contact with heated surfaces and moistened before being
discharged in the room or place to be heated as hereinafter described.
Stoves provided with these improvements have a central grato and receptacle for
the fuel surmounted by a chamber preferably of cylindrical form and containing the
supply of coke or other fuel being provided at its upper edges with a channel or
trough containing sand which makes an air tight joint with the removable cover.
The fuel in this chamber is supported upon a grate capable of being turned or
partially rotated on a central pivot by means of a handle projecting at the outside a
suitable stop or stops being provided to limit the motion. The ashpan of any suitable
form is capable of being removed by opening a door constructed with two plates the
inner plate being arranged to engage with the door frame so as to form an air tight
joint.
Air to support combustion enters through an opening or openings in the bottom of
the stove controlled by a hit and miss or other valve or valves operated by means of
an externally projecting handle provided with a graduated scale which enables the
degree of opening of the valves and the supply of air to the fuel to be regulated with
precision. This handle may be directly connected to a hit and miss valve or when
fift valves are employed for example the handle may transmit motion to the valves
through a rack and pinion or other suitable mechanism.
The air flows over the upper edge of an outer partition surrounding the lower part
of the conical grate or fireplace in order to reach the space under the bars. The
products of combustion ascend and circulate in the central cylindrical chamber and
escape by annular or other lateral openings at or near the lower part into an annular
flue or smoke chamber outside the central chamber provided with an internal

page_text: deflecting plate or plates causing the products to follow a helical course so as to
distribute the beat as uniformly as possible. The air to be heated' before entering the
chamber or place to be warmed by the stove is admitted through separate openings in
the bottom and may be drawn from outside the building if required by employing
suitable air pipes. This air first enters an annular space at the lower part of the stove
and then ascends in an annular air chamber in which the annular smoke chamber
bereinbefore described is so arranged with suitable lateral openings or passages that
the air may come in contact both with the inner and outer sides of this smoke chamber
and also with the central fuel chamber. The outer casing of the stove forming the
outer walls of this air chamber are provided at the upper part with an annular trough
containing water which supplies a certain amount of moisture to the atmosphere of
the room or place heated by the stove.
The passages admitting cold air are arranged to cause this air to impinge on the
sides of a cast iron ring forming the lower part of the combustion chamber so as to
prevent over heating of the latter.
Dated this Fourth day of June 1888.
J. H. JOHNSON & Co.,
47, Lincoln's Inn Fields, London, W.C.,
Agents.

page_text: I, GUILLAUME EMMERECHTS of 19 rue von Ortevelde, Brussels in the Kingdom of
Belgium, Stove Manufacturer, 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 improvements in the construction of stoves provided with
means for regulating the supply of air employed to support combustion and in which
an independent supply of air is caused to circulate in contact with heated surfaces and
moistened before being discharged in the room or place to be heated as hereinafter
described.
And in order that my said invention may be fully understood I shall now proceed
more particularly to describe the same and for that purpose shall refer to the several
figures on the annexed sheet of drawings the same letters of reference indicating
corresponding parts in all the Figures.
Figure 1 of the accompanying drawings represents in elevation a stove according
to my invention and Figure 2 is a plan partly in section. Figure 3 represents the
stove in vertical section and Figures 4 to 7 illustrate details hereinafter referred to.
The stove which is specially adapted for burning coke is constructed with a central
chamber A. Figure 3, preferably of sheet metal and of cylindrical form, supported ou
a cast iron cylinder, or forming a continuation of the said chamber ring B. At the
upper part of this chamber there is a circular trough or channel O containing sand
which makes an air tight joint with a flange or rim on cap D attached to or cast in
one, with a removable cover E.
The combustion chamber consists of a central fuel receptacle or basin F with
inclined or sloping sides being in the form of a hollow inverted truncated cone and a
grate G. This receptacle is supported on a flange or ring X and the grate is capable
of being rotated on a central pivot by means of an external handle or lever H
Figures 5 and 6. This lever is attached to the frame or rim of the grate and rests on
supports p carried by the chamber F, the movements of the grate being limited by a
stop & Figure 3. This arrangement enables the grate to be cleaned when the fuel is
burning and freed from the clinkers sticking to the bars, and facilitates emptying
the combustion chamber when the fire is extinguished, a reciprocating or shaking
motion being given to the grate G in order to cause the ashes to fall down into
an ashpan I. This ashpan is of the usual form and can be removed by opening
a door J Figures 1 and 3. The door J which is illustrated on a larger scale in
transverse section and in elevation in Figure 7 is provided in order to enable it
to be tightly closed with an internal plate or bar J which when the door is closed
bears against the inner side of the door frame, and effectually prevents air from
entering around the edges of the door.
The air supporting combustion enters through the bottom of the stove which is
provided with three or..
.other suitable number of openings a Figure 4 in the bottom
of the stove controlled by a hit and miss or other valve or valves operated by

page_text: means of an externally projecting lever or handle combined with a fixed graduated bar
or scale.
In the example illustrated the valve is composed of a circular perforated plate a¹
provided with orifices corresponding to the openings a, and capable of being rotated
on a centre aby operating a handle K the movements of which can be regulated by
the aid of a scale K¹.
By these means the degree of opening of the valve, and the supply of air to the fuel
can be regulated with precision, and the valve can be adjusted from the exterior
to the exact position known by previons trials to correspond with the degree of heat to
be obtained.
In place of a lever directly connected to a hit and miss valve as in the arrangement
illustrated lift valves may be employed, for example, the handle being arranged to
transmit motion to the valves by means of a pinion acting on a rack projecting
vertically from the centre of the valve.
The air in passing to the combustion chamber in the direction indicated by the
single arrows flows over the upper edge of an annular partition or ring L. below
the chamber or basin F, and is thus heated by contact with the sides of this ring and
basin before entering the space under the bars of the grate.
The products of combustion from the combustion chamber F circulate in the
direction indicated by the double arrows →→→→in an annular flue or smoke chamber M,
arranged outside the central chamber A and provided with internal deflecting plates
or baffles P
helical courseated in dotted lines in Figure 3 causing the products to follow a
so as to distribute the heat as uniformly-as-possible-before-escaping-
through a chimney N.
The air admitted through the openings a is employed exclusively for supporting
combustion in the combustion chamber. The air to be heated by the sides of the
stove and smoke chamber and employed to heat the chamber or place to be warmed
by the stove may be admitted through four separate openings QFigures 3 and 4 in
the bottom of the stove and may be drawn from outside the building if required by
employing suitable air pipes. This air first enters an annular space q, at the lower
part of the stove and then ascends in an annular air chamber P, in which the
annular smoke chamber M. herein before described is so arranged with suitable
lateral openings or passages, that the air may come in contact both with the inner
and outer sides of this smoke chamber, and also with the central chamber A. This
air passes in part through passages C and serves to partially cool and preserve the
cast iron ring B.
The outer casing of the stove forming the outer walls of the air chamber P are
provided at the upper part with an annular trough R containing water which supplies
a certain amount of moisture to the atmosphere of the room or place heated by the
stove.
The stove may evidently he of square triangular rectangular octagonal cylindrical
or any other suitable form in plan and the materials and details of construction
herein before described may be modified according to circumstances without departing
from the principles of my invention.
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. In a stove the combination of a cylindrical chamber A containing fuel surrounded
by an annular chamber for the circulation of the air to be heated and a smoke
chamber M. whereby a large area of heating surface is obtained and the heat of the
products of combustion is completely utilized substantially as herein before described,
and illustrated in the accompanying drawings.
2. The employment of passages C enabling cold air to pass from the external air
chamber to the internal air chamber, within the smoke chamber, and at the same
time cool the ring B substantially as hereinbefore described and illustrated in the
accompanying drawings.

page_text: 3. A stove constructed with a cast iron ring B as and for the purpose hereinbefore
described with reference to Figure 3 of the accompanying drawings.
4. A stove constructed with a cast iron basin or chamber F provided with lugs p. p.
and acting as a combustion chamber, substantially as hereinbefore described with
reference to the accompanying drawings.
5. A grate G of circular or other form capable of rotating or oscillating on a
pivot and operated by a lever or handle H in the manner and for the purpose
substantially as herein before described with reference to the accompanying drawings.
6. The combination of a grate ai ranged and operating as claimed in the pre-
ceding claiming clause, and a stop b limiting the amplitude of the movement of
the said grate substantially as hereinbefore described with reference to the accom-
panying drawings.
7. The employment of a valve or register consisting of a plate provided with
openings capable of being opened and closed by means of another plate, provided with
corresponding openings and capable of being operated from the exterior by means of
a lever or handle K substantially as hereinbefore described with reference to the
accompanying drawings.
8. In combination with the lever or handle K a graduated scale K' indicating the
degree of opening of the valve or register substantially as hereinbefore described with
reference to the accompanying drawings.
9. In combination with a stove constructed as hereinbefore set forth, a register
valve controlling the supply of air substantially as herein before described.
10. The helical division plate or plates P arranged in the interior of the sinoke
chamber and causing the products of combustion to traverse the entire height or
length of this chamber before escaping into the chimney substantially as herein-
before described with reference to Figure 3, of the accompanying drawings.
11. The circular trough or channel O containing sand and receiving the flange or
rin on the cap D as and for the purpose substantially as hereinbefore described and
illustrated in Figure 3 of the accompanying drawings.
12. The construction of the door J, made with two plates so arranged that the
inner plate can be pressed against the edge of the frame of the opening so as to cause
the door to tightly close the said opening substantially as hereinbefore described and
illustrated in Figures 1, 3 and 7 of the accompanying drawings.
13. The annular trough R arranged at the upper part of the air chamber and
containing water as and for the purpose substantially as herein before described and
illustrated in the accompanying drawings.
14. The annular partition or ring L, over the edge of which the entering air is
caused to pass and thereby become heated, before entering the space under the
grate substantially as hereinbefore described with reference to the accompanying
drawings.
15. The combination of the flues Q supplying the stove with air drawn from the
exterior substantially as hereinbefore described. with reference to the accompanying
drawings.
16. The general combinations and arrangements of parts constituting the improve-
ments in stoves substantially as hereinbefore described with reference. to the
accompanying drawings.