Improvements in Stoves.
Year: 1893

page_text: Date of Application, 18th Nov., 1893-Accepted, 6th Jan., 1894
Improvements in Stoves.
I, OTTO CHRISTIAN HOLTER, of Christiania, in the Kingdom of Norway,
Merchant, 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 magazine-stoves, especially designed for burning
anthracite coal, the object being firstly to so construct the inner refractory lining
as to produce an absolute and complete horizontal burning of the fuel and
protection of the parts formerly exposed to the fire and consequent prevention of
the burning of the metal casing of the stove; secondly to provide a smoke outlet
which will allow of the flues of the stove being easily cleaned; thirdly to construct
the top of the stove in such a manner that it can be at any time easily and quickly
removed for sweeping or like purposes and to give it a perfectly tight joint by
means of suitable packing so that smoke is effectually prevented from egressing
into the room.
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To enable my invention to be fully understood I will describe how it can be
carried into effect by reference to the accompanying drawings, in which :-
Figure 1 is a side sectional elevation of a stove constructed according to my
invention:
Figure 2 is a plan of the same partly in section on the linex Figure 1:
Figure 3 is a section of the top part of the stove :
Figure 4 is a plan of the same; and,
Figure 5 is a detail illustrating the means for securing the removable top of the
stove.
On the bottom plate a of the fire-place is placed a sloping slab of fire-clay or
refractory material 6 bebind which in the back part of the stove is a block of
refractory material c formed either in one or two pieces. This block chas
concavities shewn in Figures 1 and 2 forming passages for the exhaust gases. On
the bottom plate a also rest two segmental blocks of refractory material d, d,
Figure 2, placed one at each side of the fire-place and on the said blocks rests an
annular piece of refractory material e. The piece e is provided with front and
back downward prolongations e' and e² respectively, the former serving to protect
the outer casing of the stove from the action of the fire and the latter to ensure an
absolutely horizontal burning of the fuel; the air for supporting combustion
passing through and below the door and the gases passing in the direction shewn
by the arrows below the prolongation and through the passages y and which
are formed by the piece e, the concavities in the block e and a plate i. On the
piece e rests a conical top ring of refractory material on which is placed the
coal cylinder or magazine provided with a cover ; by means of the ring k
the outer casing of the stove as well as the lower part of the cylinder l'are
prevented from being burnt.
I also provide channels m, m partly formed by passages made in the front and
back of the ring or piece e and partly by grooves in the top of the ring e covered
by the top ring k, which channels serve to convey fresh air from the front part of
the fire-place to the passage y, by which means a complete combustion of the gases
is effected.
On a
The removable top of the stove is arranged in the following manner.
bead n' on the casing n rests a ring o, the casing n being turned down by means of
a hammer, for example, over the upper edge of the ring o as most clearly seen in
Figure 5. Above the ring o I place a cover p provided on its inner side with two

page_text: annular ribs forming a circular groove p¹ with enlargements p² in which fits the
ring o with its lugs or projections o' as will be understood by reference to Figures 3
and 5. In the groove pl and between the cover p and the ring o I place asbestos
or other packing and fasten the casing n, the ring o and the cover p together by
means of screw-bolts and. nuts in such a manner that the stove can, for instance
when requiring to transport it, be lifted by means of the ring o. It will be
understood that by reason of the interposed compressed asbestos packing the gases
can not pass out into the room and poilute the atmosphere.
Instead of the ring o resting direct on the bead n', it may rest on another ring r,
Figure 1, resting on the bead n'.
arrange a door t in the smoke outlet & as shewn in Figure 1, whereby I can at
any time sweep and clean the passage h and the smoke outlet s free of any soot
and tar which may collect therein.
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 :-
1. In a magazine-stove the use of an inner incombustible refractory lining
comprising a sloping slab placed in the back part of the fire-place, between which
and a prolongation on a refractory ring the gases pass and are met by a current of
air coming from the front part of the fire-place through channels in the said ring
for the purpose of causing a horizontal burning of the fuel, substantially as herein-
before described.
2. In a magazine-stove the use of an incombustible refractory top ring such as k
for the purpose of preventing the lower part of the magazine from becoming
burned substantially as hereinbefore described.
3. In a magazine-stove the arrangement of the block c of refractory material
formed in one or two pieces and provided with concavities which in conjunction
with the rings e and k and the outer casing of the stove forms passages for the
escaping gases, substantially as set forth.
4. In a magazine-stove a smoke outlet having a door through which the smoke
outlet and the adjacent flue can at any time be easily swept and cleaned substan-
tially as set forth.
5. In a magazine-stove a removable top comprising a ring secured to the casing
of the stove and a cover placed above the said ring, asbestos packing being
interposed between the parts and the whole secured by screw-bolts and nuts for
the purpose of preventing smoke from issuing into the room, substantially as set
forth.
6. The improved stove hereinbefore described and illustrated in the accompany-
ing drawings.
18th day of November 1893.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.