Year: 1896

page_text: Date of Application, 21st May, 1896-Accepted, 4th July, 1836
Fig. 2 a vertical central section of one construction of the improved stove.
Fig. 3 is a plan of the same with the cover O removed, and Figs. 4, 5 and 6 are
horizontal sections on the lines ay y and z z respectively of Fig. 2.
Fig. 7 is an elevation and
Fig. 8 is a vertical central section of an alternative construction of stove according
to this invention;
Fig. 9 is a transverse section on the line 9, 9 of Fig. 8;
Fig. 10 is a transverse section showing an alternative construction of a detail of
the stove illustrated in Figs. 7, 8 and 9, and
Figs. 11 and 12 show in vertical and horizontal section respectively a further
alternative construction thereof.
In all the figs. M is the outer casing, S the base, L the lamp and Z its chimney,
which is adjusted and retained by any of the usual or well-known devices for such
purposes. The flame can be observed through a transparent portion of the
chinney Z. The opening M, for access to the lamp L is shown open in the drawing,
but can be closed by a door or a slide, which should also have a transparent window
in it. Further utilisation of the heat is obtained by a top piece, which in the
drawing is shown secured to the lower part of the stove, but can also be separate
from it and merely rest on the lower part.
With reference first to Figs. 1 to 6, the chimney or cylinder Z enters at its upper
end a tube A, in which it can be moved up and down and which is connected to the
outer casing M by a ring B. The ring B and bottom D of the top-piece form a
chamber which is divided by the ring C secured to the plate D, the upper end of
the tube A and the lower ends of the tubes R connect with the inner space K
while the lower ends of the outer tubes R, communicate with the outer annular
space Ko
The upper ends of all the tubes R and Ro are connected to the
bottom E of the drum F and communicate with its interior, the cover F, of which
is either non-perforated or perforated with openings for cooking, which can be if
desired covered with removable portions (not shown) as in cooking ranges.
cover F, there is the closed or perforated upper cover O.

page_text: .
The action of this arrangement is as before described, that is to say ;-The gases
rise through the chimney Z into the space K, distribute themselves in the pipes R
and go upward, collect in the drum F and go through the outer pipes R, downwards
into the space K, and from this space they are again drawn through the new and
hotter gases in the space K and if desired mixed then with fresh air introduced
through holes b, which are in such case to be provided in the bottom plate B, in
order to start the circulation again. Should too much of the combustion products
collect, part of them is allowed to escape by an exit not indicated in the drawing,
for instance, through a valve provided in the drum or through any other device.
In the arrangement shown in the Figs. 7, 8 and 9 the inner tubes R are dispensed
with and the tube A extends nearly to the top nearly to the plate E, which again
can be non-perforated or can be provided with cooking openings. The bottom D
is a simple annular piece. The chambers K and K, do not exist here, and the hot
combustion products rise in Z and A upwards, pass through the annular space
formed between the tube A and casing M or, when the casing M is not cylindrical
as in Fig. 10, through triangular passages M2 downwards and in both cases are
mixed by way of openings a in the tube A with the hot combustion products alonė
or with fresh air entering through holes d in the bottom D (see Fig. 8) and m in
the casing M and drawn upwards to repeat their circulation. Also in this arrange-
ment there can be provided a device to prevent collection of too great a mass of
combustion products. If it is desired not to let these latter and the combustion
product of the arrangement illustrated in Figs. 1 to 6 repeat their circulation then
they are allowed to escape through suitable openings provided in the outer casing.
The top-piece shown in Figs. Il and 12 differs from that in Figs. 7-10 by the
fact that it chas a cylinder P. inserted between the casing M and tube A, so
that there is formed an annular space H between A and P for the passage of
air, in order to still better utilise the heat. of A. In this case the combustion
products from the tube A pass through pipes p into the space between the parts M
and P and are then drawn through holes a into the tube A and if desired mixed
with fresh air coming through any suitable opening for further circulation with
the hot combustion products; the air reaching P passes through the pipes m into
the space H, becomes hot by contact with P and A' and escapes at the upper end
of the space H.
The air, when such is mixed with the combustion products, can enter from below
through the lamp opening Mo, instead of through holes b as in Fig. 2.
If the pipes R and R, in Figs. 1 to 6 are connected by simple curved top connec-
tions as in Fig. 14, then the stove becomes very simple, but of course has then no
arrangement for cooking.
In order to store the heat in the hereinbefore described stoves for petroleum or
spirits, a heat-absorbing substance can be placed in the pipes or flues, through
which the combustion-products pass, for instance pieces of sheet metal of different
shapes or lumps of refractory material or the like. But then the pipes or flues
must be made accessible for cleaning and for the cleansing of their contents.
must also be remarked, that the pipes or flues for the passage of the combustion
products can be made of clay or other refractory material.
It
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, I declare that what
I claim is;-
1. A stove for petroleum or spirits in which the combustion products go up
and down through one or several pipes or flues made of metal, clay or other
refractory material or the like and then either escape to the outside or are mixed
with hot combustion products and if desired with fresh air for a renewed circulation
substantially as described.
2. In the stove characterised in Claim 1 the storage of heat by bodies of suitable
shape made of metal or refractory material placed inside the pipes or flues.

page_text: .3. The combination and arrangement of parts constituting a complete stove
substantially as and for the purpose described and illustrated in Figs. 1 to 6 or
Figures 7 to 12 of the accompanying drawings.
Dated this 12th dev of May 1896.
BOULT & WADE,
Agents for the Applicant.