Improvements in Heating Stoves.
Year: 1895

page_text: Date of Application, 26th Nov., 1895-Accepted, 11th Jan., 1896
COMPLETE SPECIFICATION.
Improvements in Heating Stoves.
I, FRANK VINCENT KNAUSS, Stove Manufacturer, residing at No. 35 East
8th Street, in the City of Portsmouth, County of Scioto and State of Ohio, U.S.A.,
do hereby declare the nature of my invention for an improvement in stoves and
in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement :-
Fig. 1 is a central vertical section, from front to rear, of an improved heating
stove;
Fig. 2, a front view of the water heater, the front wall of same, being partly
broken away; and
Fig. 3, a perspective view of the water heater.
My invention relates to certain improvement in the construction of heating stoves
and its primary object is to provide economical and efficient means whereby
bituminous coal may be utilized to its ultimate capacity, being first ignited and
roasted in a suitable fuel chamber until the temperature rises to a degree required
to liberate the constituent gases, which being then combined with a suitable supply
of heated air, are conducted into an adjoining compartment of the stove and
thoroughly consumed, producing an exceptionally intense heat.
The peculiar construction of the device will be readily understood by referring
to the accompanying drawings in which A designates the shell of the stove, which
is preferably rectangular in form. The magazine or fuel compartment 2 is located
in the rear part of the stove and provided at its upper end with a valve 3, the
purpose of which will be hereinafter explained. The bottom of the magazine
consists of a plate which is preferably solid. Being made in the form of a
pointed arch and having a central shaft 5 extending through the side wall of the
stove and attached to suitable crank or lever, the plate may be readily oscillated
and any accumulation of ashes or other unconsumed matter will thus be discharged
into the ash-pan. A grate 6 extends upwardly from the rear edge of the said
plate and inclines against the rear wall of the stove. The front portion of the
stove forms a gas burning chamber 7. It has been fully demonstrated that in a
heating stove provided with this device, no available material employed for a
dividing wall between the fuel magazine and the gas burning chamber, is
sufficiently refractory to withstand the intense heat that is generated. Metal
plates of various forms and fire brick of the best quality and construction are soon
destroyed. In order to obviate the difficulty 1 interpose a water heater 8 having
downward extensions united at their lower ends by a transverse connecting foot 9,
forming a continuous cavity for water and providing an opening 10 to admit the
gases formed in the adjoining fuel compartment. The water heater is surmounted
by a hollow casting 11 which provides a bearing for the valve 3.
The operation of the device will now be described. Kindling material and fuel are
The valve 3 being
introduced through a door in the top or side of the stove.
thrown up, opens a direct draft leading from a register in front of the stove, passing
thence backwardly through the ash pit under the magazine and upwardly through
the grate 6 to the fuel chamber. When the fuel becomes heated to the degree
required to release the gases, the valve 3 is thrown down, closing the top of the
magazine and the draft is deflected horizontally into the gas burning chamber 7.
Before entering the chamber the gases are enriched by a supply of atmospheric
air which is admitted through a tule 12 which traverses the upper border of the

page_text: opening 10 and is provided with a suitable number of downwardly and rearwardly
inclined perforations. The movement of the air being slightly retarded by the
opposing current of gas, becomes thoroughly heated and commingled with the
gases. Perfect combustion-certified by the absence of smoke-is thus insured.
A bright flame being also produced it is only necessary to furnish the front of
the stove with mica and thereby secure all the comfort and attractions of an open
fire-place.
It will be observed that while the water heater is effectively protected from the
destructive action of extreme heat, by the free circulation of its contents, another
important advantage is obtained. By simply attaching outlet and inlet pipes 13
and 14 the hot water may be readily employed for warming several apartments in
a building or supplying hot water for bath rooms or other purposes. It has been
definitely ascertained that a stove of medium size provided with my improvement
is easily capable of generating a degree of heat greatly in excess of the require-
ments of a large apartment. The surplus internal heat may be utilized to great
advantage in the manner described, thereby converting the stove into an effective
hot water furnace.
:
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
In a heating stove, the combination of the herein described magazine for
receiving and roasting soft coal and liberating its constituent gases, with an
adjoining chamber for burning the gases, a water heater interposed between the
said magazine and burning chamber, provided with an opening for the passage of
the gases from the magazine to the burning chamber, an air duct provided with
perforations adapted to introduce and reinforce the gases by the admixture of
atmospheric air, and means for utilizing surplus heat substantially as and for the
purposes herein specified.
Dated this 26th day of November 1895.
S. S. BROMHEAD,
97 Newgate Street, E.C., Agent for Applicant.