Improvements in Stoves.
Year: 1893

page_text: Date of Application, 16th Oct., 1893
Complete Specification Left, 12th July, 1894-Accepted, 18th Aug., 1894
PROVISIONAL SPECIFICATION.
Improvements in Stoves.
I, FRIEDRICH BRÖMME, of Amorbach, in the Empire of Germany, Architect,
do hereby declare the nature of this invention to be as follows: —
My invention relates to an air-circulating stove which is heated very rapidly and
retains the heat a long time so that it will utilize the fuel completely and give
off the heat uniformly. By reason of its simplicity the improved stove can be
manufactured easily and at a low cost.
In order that the heat may be given off uniformly without troublesome radiation
I provide air-circulating pipes which extend from the under side to the upper part
of the stove so as to partly form the sides of the furnace bounded below by a grate
and fed from above after raising the cover, the arrangement being such that the
flame or the products of combustion which leave the stove through a channel at the
top will come in contact with the said pipes. As the largest portion of the outer
surface of these pipes, which are bent at their upper end and extend to the outside
through the wall of the stove, is surrounded by a non-conductor of heat (masonry)
the following peculiar action takes place. From the moment when the fuel is lit
to the moment when the flame is extinguished the circulating pipes are energetically
heated at their uncovered side. They receive more heat than the air can withdraw
from them which enters at the lower end of the pipes and leaves them at the upper
end. The excess of heat thus produced in the sides of the pipes is however taken
up by the cover (masonry) without radiation of heat to the outside of the stove.
When the fire is extinguished the cover yields its heat again to the pipes or to
the air passing through them so that afterwards the room will also be heated.
Trials made with a stove constructed according to my said invention have given
the best results such as have not been obtained with the stoves heretofore
employed.
Dated this weah don
1 10112
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Stoves.
I, FRIEDRICH BRÖMME, of Amorbach, Kingdom of Bavaria, in the Empire
of Germany, Architect, 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 :-
My invention relates to air-circulating stoves which are heated very rapidly and
which retain the heat a long time so that they will utilize the fuel completely
and give off the heat uniformly. The improvements may be applied to any stove
or similar fire-places which may serve occasionally or in addition to other purposes,
such as cooking to provide sitting-rooms or other apartments with warm air.
In the accompanying drawing I have shown by way of example how my
invention may be conveniently and advantageously carried into practice.

page_text: Figure 1 is a front view of an ordinary stove provided with my invention;
Figure 2 represents a vertical section of the same on line I-I of Figure 3 and
Figure 3 shows a horizontal section hereof on the line II-II of Figure 2.
Similar letters of reference denote similar parts in the several views.
In order that the heat may be given off uniformly without troublesome radiation
1 provide air-circulating pipes E which extend from the under side to the upper
part of the stove so as to partly form the sides of the furnace. The said furnace
being provided below with a grate A and fed in the usual manner through the
fire-door D, the arrangement being such that the flame or products of combustion
which leave the stove through a conduit C at the back will come in contact with
the said pipes E.
As the larger portion of the outer surface of these pipes, which are bent at their
upper end and extend to the outside through the wall F of the stove, is surrounded
by a suitable non-conductor of heat which may serve the masonry forming the
jacket or walls of the stove, the following peculiar action takes place. From the
moment when the fuel is lit to the moment when the flame is extinguished or
dampened, the circulating pipes are energetically heated at their uncovered side.
They receive more heat than the air can withdraw from them which enters at the
lower ends e of the pipes and leaves them at the upper ends e¹. The excess of heat
thus produced in the sides of the pipes E is however taken up and stored by the
jacket or wall F (masonry) of the stove without radiation of heat to the outside of
the stove. When the fire is banked up or extinguished, the heat accumulated by the
material of the jacket or wall yields its heat again to the pipes E or to the air
passing through them so that the room will still continue to be heated.
The stove illustrated is provided with an ash-pit G in the usual manner, and the
top or cooking space H of the stove may be adapted for cooking purposes, in
which case the plate 1 may be provided with an aperture or apertures for the
reception of cooking vessels or the like. In such cases I am accustomed to cover
the cooking space H by a plate L hinged to the rear wall of the stove and make
When not
the same accessible through a door K at the front part of the stove.
used for cooking purposes it may be advantageous to put a vessel with water on the
hole of the fire-plate I and to allow the vapours raised therefrom to enter the room
to be heated through passages h of the stove wall, thus providing the room with
conveniently moist air.
The new system may be advantageously applied to cooking ranges or the like,
the heat stored up by the masonry of the range yielded to the air passing through
the properly arranged air circulating pipes and the heated air conducted through
suitable channels into separate apartments, thus utilizing the heat not consumed for
cooking purposes which would be otherwise lost.
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 combination with a stove, or similar fire-place air-circulating pipes E
extending from the lower to the upper part of the furnace and arranged within
the walls or jacket of heat accumulating material in such manner that they will
be partly exposed to the fire of the furnace, substantially as and for the purpose
set forth.
1
C T 1
1001
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.