Year: 1898

page_text: I, ROBERT WINTER, of 42, Burgstrasse, Hanover, Germany, Manufacturer, do
hereby declare the nature of this invention to be as follows:-
The present invention relates to a regulator of the combustion for stoves, apart
from the stove and allowing to be separately transported.
The object of the improved arrangement is to cause some air-valves, arranged
on the regulator, to open by the sucking action of the stove, that is, of the
escaping hot gases, for the purpose to mix these gases if they surpass a deter-
minate rate of speed, with atmospherical air, thus regulating the fire of the stove.
The speed of the escaping gas depends on two circumstances:
1) on the influence of the height and the position of the chimney.
2) on the effect of the more or less intense combustion within the stove.
By circumstances depending on the state and the movement of the outer air,
the draught of. the chimney, the stove being not heated, may be as strong as
when, by other outer circumstances, the stove is heated.
In the first case the air-valves, with very favourable conditions of draught,
should also open with a less greater intensity of the combustion than in the second
case
The apparatus contemplated as an object by the present invention is therefor
arranged in such a way as to allow the sucking action of the chimney upon the
air-valves to be chosen, that the air enters through the air-valves, to mix with
the hot gas, thus decreasing and regulating the draught within the stove, but at
a certain degree of the combustion and with atmospherical determined conditions.
The improved stove-regulator is formed of a prismatic casing, closed at the
lower part by a bottom forming a base and at the top by a roof to which is secured
a neck, receiving the smoke-pipe. To this roof is moreover secured a cylinder
provided with slits or windows for the escape of the smoke and extending down-
wardly into the regulator, that is, into the smoke-chamber, formed of an inner
cylindrical casing in the prolongation of the said slitted escape-cylinder, and
secured thereto. Around this escape-cylinder is arranged another slitted cylinder
forming the register, the slits or windows of which correspond with the windows
of the aforesaid escape-cylinder and allow these latter to be shut more or less
by giving to the register different positions, obtained by operating a handle
secured thereto and extending outwardly.
The remainder of the space enclosed by the outer casing of the apparatus, the
bottom and the roof thereof, forms an air-chamber, provided at its lower part with
air-valves, which, by a certain-pressure of the outer air, higher than the pressure
of the air in the said chamber, open automatically and allow the outer air to
enter this air-chamber until the equilibrium between the inner pressure and the
outer pressure is again established.
The wall of the aforesaid smoke-chamber is provided with a circular hole
|through which extends the smoke-pipe leading from the stove,

page_text: The combustion products, escaping from the stove, enter the said smoke-
chamber, whence they pass into the outlet-cylinder and through the neck on the
top of the apparatus into the smoke-pipe and the chimney. The slits or windows
of the outlet-cylinder being completely shut by the solid parts of the register
turning around this cylinder, the chimney actuates only upon the stove.
The draught being too strong, the register is brought by little and little in its
opening position. With each of these positions, the hot gases escaping from
the stove exert a sucking action upon the said air-chamber of the apparatus, the
importance of this action depending on the draught of the store and on the size of
the slits or windows of the said outlet-cylinder. The vacuum, produced by this
sucking action, cause the air-valves to open, the outer air flows into the air
chamber, is heated by the walls of the smoke-chamber and of the register and
mixes with the combustion products escaping through the outlet-cylinder. The
temperature of these products is thus lowered and consequently their ascending
power and also their sucking action upon the said air-chamber will be diminished.
The pressure in the air-chamber will therefor increase, until the equilibrium
between the inner pressure and the outer pressure be again established, and conse-
quently, by turning the said register, the position to give to this. register will
soon be found in order to have a desired combustion, with which each increase of
draught produced by outer influences causes the opening of the air-valves and
consequently an instantaneous decrease of draught.
Dated this 20th day of April 1898.
L. DUVINAGE
Patent Agent. 8, Rue des Princes, Brussels, Belgium,
Improved Stove Regulator.
I, ROBERT WINTER, of 42, Burgstrasse, Hanover, in the Empire of Germany,
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:-
Figures 1 to 3 of the accompanying drawings show respectively in longitudinal
section, transverse section, and horizontal section, a combustion-regulating device
for stoves for the particular case in which the stove and the regulator are separ-
ately portable and can therefore be easily separated one from the other. The
object of this arrangement is to open by the drawing action of the stove that is
to say of its hot gases escaping therefrom, air valves for the purpose of mixing
the gases (when the latter exceed a pre-determined maximum speed) with the
outer air, and thus deadening or regulating the fire in the stove. The velocity
of the escaping gases depends as is well known on two circumstances. Sometimes
it depends on the influence of the height and position of the chimney, and some-
times on the greater or less intensity of the combustion in the stove itself. For
reasons which depend on the state and on the movement of the outer air, the
draught in the chimney, when the stove is not heated, may be as great as when.
for other extraneous reasons the stove is heated. In the first case the air valves,
under conditions of draught which are very favourable to the stove, should also
open with a much less intensity of combustion than in the second case. An
apparatus of this kind which is so simple and in which the valves would only
open by reason of the velocity of the draught of the escaping gases, that is to
say, by the suction action which is not controllable, of these latter upon the valves,

page_text: could not be employed during a great number of days in the year or in many
countries.
Now the apparatus forming the subject of the present invention is therefore
arranged in such a manner that the sucking action of the chimney upon the air
valves may be made such that the air will only enter through the valves into the
hot gases of combustion and will diminish and regulate the draught in the stove
only at a certain degree of combustion and under determined external conditions.
The apparatus comprises the casing to which is closed at its lower part by a base
with a bottom w² and at its upper part by the top with an exit pipe union w.
To the top there is also fixed a cylinder with slits (see Fig. 3) which extends
below into the smoke chamber. Around there is arranged the damper g, which is
provided with slits and which can be turned by means of the handle e. The
slits in g are superposed relatively to the slits in the exit cylinder and they close
these latter to a greater or less extent according to the position occupied by the
damper. The remainder of the space enclosed by the wall w, the bottom and
the top forms an air chamber a whose lower side openings are closed by valves k
which, when there is a certain pressure of the outer air exceeding that of the air
contained in the chamber a, will open automatically and allow air to enter the
chamber a, until equilibrium is established between the internal pressure and
the external pressure.
i
In the construction shown of the draught regulator, the wall of the smoke
chamber is provided with a circular hole in which there is introduced the smoke
pipe b, leading from the stove to the regulator. In cases where the latter is not
in use, the valve d which is now lowered and is kept in that position by means
of 6 closes the admission hole in the wall j by means of a spring (not shown).
As shown in the drawing the smoke gases escaping from the stove enter the
smoke chamber, pass thence into the cylinder h and through the pipe union 6
through the smoke pipe (which is connected to the latter and is not shown) into the
chimney. The latter therefore acts upon the stove by means of the cylinder
and of the smoke pipe. When the slits of the cylinder h are completely closed
by the full portions of the damper 9, the chimney acts only upon the stove.
When the draught is too strong, g is moved gradually by means of the handle e
from the closed left hand position into the fully open right hand position shown
in Figure 3. In each of these different positions the hot gases
which escape
exert a sucking action upon the air chamber a with a force which depends on
the draught of the stove, and on the size of the uncovered apertures in the
cylinder h. The vacuum which is formed in a by reason of this sucking action,
opens the valves ; the air flows from the outside into a, becomes heated by the
walls of the smoke chamber and of the damper and mixes with the gases that
escape into h. The temperature of these latter is therefore lowered and conse-
quently their ascending power is reduced, whilst also their sucking action upon
the air chamber is likewise reduced. The pressure in this latter will increase
continuously until equilibrium has been established anew between the internal
pressure and the external pressure, and consequently by turning the damper, the
position can soon be found which is necessary to be given to the damper in order
to produce the desired combustion and in which every increase of. draught pro-
duced by external influences will cause an opening of the valves and consequently
an instantaneous reduction of the draught.
By means of the arrangement shown, a much greater utilisation of the heat of
the exhaust gases can be rapidly obtained in the following manner:-In the
upper part of the wall w, there are provided apertures o fitted with dampers n.
These latter are formed with teeth with which engage the teeth g¹ that are
provided on the damper g and that cause a simultaneous movement of the three
dampers g and n. In the completely closed position of the damper g, the two
dampers are open, and in this state of combustion the valves k may be slightly
opened in order to allow some air to enter the chamber a, which air becomes
heated by the walls of the smoke chamber and of the cylinder h, and passes to

page_text: the outside through n. When the damper g is opened, the draught acts upon
the valves and a portion of the air passes from a into the cylinder h and another
portion passes through to the outside. From the foregoing it will be seen that
the influence of the sucking action of the exhaust gases upon the air chamber a
by the establishment of a determined free passage, allows of withdrawing the fire
in the stove from the external influences upon the draught of the chimney in such
a manner that with a certain force of draught of the latter not only can any
desired intensity be given to the fire, but it can also be maintained at any desired
intensity.
It will moreover be seen that in a fixed stove the smoke pipe b of the latter
can be firmly attached to the regulator without it being necessary for this pur-
pose that the pipe b should enter the smoke chamber, but it can be simply attached
to the latter.
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). A combustion-regulator for stoves, characterised by the fact that the suck-
ing action of the escaping gases entering into the smoke chamber j of the regu-
lator, opens automatically the closing valves k of the air chamber a connected
to j, and by the fact that the outer air is admitted by the said valves k into the
chamber a, the passage of the said air into the smoke chamber that is to say
into the slotted cylinder h forming an extension of the latter, and consequently
also the combustion in the stove is regulated by the position of the slotted
damper g, which is rotatable about h.
(2). In the combustion-regulator specified in Claim 1, the combination of the
damper with the two dampers n arranged in front of the upper apertures o of
the air chamber a in such a manner that the three dampers will move simultane-
ously and that the closing of the damper g will produce an opening of the two
dampers n with the object of affecting a better utilisation of the heat of the
escaping gases of the stove.
(3). An improved stove-regulator, substantially as above described and shown
the accompanying drawings.
Dated this 21st day of January 1899.
ROBERT E. PHILLIPS, Assoc. M. Inst. C.E., M.I. Mech. E.
Chartered Patent Agent,
70, Chancery Lane, London, W.C., Associate Agent.