An Improved Stove.
Year: 1892

page_text: COMILELE
An Improved Stove.
I, AXEL MAURITZ LANNER, of Hamar, in the Kingdom of Norway, Manu-
facturer, 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 has for its object an improvement in stoves by which the hot
glowing gases issuing from the fireplace are prevented from burning up and
destroying the lower part of the flue. This latter is the part most exposed to the
fire. I gain this result by placing a stone over the fireplace; this stone having
openings for the flue and the fuel magazine and resting upon the side stones of the
fireplace. In the flue by this arrangement the gases are forced to heat a greater
surface and thereby increase the development of heat from the stove. A movable
plate placed inside the door of the stove is also provided by which a space is formed
between the door and the plate in which space the lighting of the fire takes place
in a convenient manner; a part of the incoming air is heated and warm air is led
to the flue, by which means the combustion is rapid and reduction takes place in
the development of carbonic oxide.
In order that my invention may be better understood and more readily carried
into effect I will describe the drawing hereunto annexed.
Figure 1 is a sectional elevation of the stove.
Figure 2 is a section on the line x, c in Figure 1.
a is the outer casing of the stove, is the top plate, c is a top cover which
overlaps the magazine d, e is the fireplace, ƒ is a round stone which has openings
for the magazine and for the flue, and to the stone fis fixed the plate 9 which
extends upwards and has its upper part bent down to surround the magazine d, the
said plate flaring outwards to the walls of the outer casing to the extent shewn by
the dotted lines in Figure 1 the said plate g with the magazine wall / forming the
flue . It is obvious that the gases issuing from the fireplace e cannot so easily
destroy the lower part of the flue because of the incombustible part f. The gases
are forced to pass through the flue i and by reason of the curved shape g' of the
plate are deflected and carried round the magazine to the front of the stove
whence they pass through the channel k out into the air as shown by the arrows.
1, 1 are two channels which lead from the fireplace to the channel m running round
the magazine d to the flue i for the purpose of conveying air whereby development
of carbonic oxide is reduced. The channel m is formed as a groove in the upper
surface of the stone which latter is again covered by a plate f¹. A movable
plate n is suspended on lugs g inside the door o of the stove and for the purpose of
stirring or shifting about the fuel in the fireplace e this plate can by means of the
handle p be moved away from and towards the uprights against which the lower
part of the plate normally rests. The plate n is provided with air openings n¹ to
the fireplace. Between the door o and the slide n is a space forming a chamber s
serving to receive wood, sawdust or other easily inflammable materials which upon
being lighted will, through the openings n¹ of the plate n, cause the fuel (coal,
coke &c.) in the fireplace to become ignited and the chambers will then serve to
heat a portion of the incoming air to assist combustion.
Under the fireplace is the grate t which can be moved backwards and forwards
in grooves or guides by a handle, hook or other suitable means and from this grate
the ashes fall into the ash pan v.

page_text: 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 the manufacture of stoves, the provision of a fireplace furnished with a
stone with openings to the fuel magazine and the flue, the operation being that
the gases coming from the fireplace are directed into the flue i and do not destroy
the lower part of the latter, all substantially as described and as illustrated in the
accompanying drawing.
P
(2.) In stoves, the use of a plate n provided with a handle for forming an inner
chamber in which the lighting of the fire is effected and a portion of the incoming
air is heated to assist combustion, substantially as described and as illustrated in
the accompanying drawing.
(3.) In stoves constructed as described in Claim 1, the use of channels 1, 1, either
in the stone for in the side stones of the fireplace these channels communicating
with the channel m in the upper surface of the stone the latter being covered by
a plate f¹, all substantially as described and illustrated in the accompanying
drawing.
Dated this 16th day of June 1892.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.