IMPROVEMENTS IN AND APPLICABLE TO STOVES AND FURNACES
Year: 1882

page_text: LETTERS PATENT to Edmund George Lakeman, of Modbury, in the County of
Devon, Ironmonger, for an Invention of "IMPROVEMENTS IN AND APPLICABLE
TO STOVES AND FURNACES."
PROVISIONAL SPECIFICATION left by the said Edmund George Lakeman
at the Office of the Commissioners of Patents on the 4th January 1882.
EDMUND GEORGE LAKEMAN of Modbury in the County of Devon, Ironmonger.
"IMPROVEMENTS IN AND APPLICABLE TO STOVES AND FURNACES."
This Invention relates to improvements in and applicable to stoves and furnaces
whereby the smoke and unconsumed gases from the combustion of the fuel, which
usually escape by the chimney are consumed, and ecomomy of fuel thereby
effected.
A suitable arrangement for carrying out my Invention when applied to a close
stove is as follows:-
I connect the ash pit with the upper portion of the stove by one or more flues or
pipes and I provide a flue or shaft which extends into the fuel nearly to the fire
grate, the lower portion of the said flue or shaft being perforated. Air for the
combustion is supplied above the perforations of the said flue or shaft and may be
supplied by tubes opening into the upper end of the herein before described
connecting flues.
By this construction the smoke and unconsumed gases from the fuel (which
usually escape by the chimney) as well as the air for the combustion will pass
through the herein before described connecting flues and will be brought into the
closed ash pit and pass into the fire whereby the said smoke and unconsumed gases
will be wholly burnt or nearly so, the heated incombustible gases escaping into the
flue or shaft through the perforations therein.
Suitable means such as a slide or door in the herein before described perforated
flue or shaft is provided to allow of the escape of smoke when the fire is first
ignited.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Edmund George Lakeman in the Great Seal Patent Office on the
4th July 1882.
EDMUND GEORGE LAKEMAN of Modbury, in the County of Devon, Ironmonger.
"IMPROVEMENTS IN AND APPLICABLE TO STOVES AND FURNACES."
This Invention relates to improvements in and applicable to stoves and furnaces
whereby the smoke and unconsumed gases from the combustion of the fuel,
which usually escape by the chimney are consumed and economy of fuel thereby
effected.
A suitable arrangement for carrying out my Invention when applied to a close
stove is as follows:-
I connect the ash pit with the upper portion of the stove by one or more flues or
pipes and I provide à flue or shaft, or flues or shafts, which extends or extend into
the fuel and is or are connected with the before mentioned flue or flues. The flues
or shafts are perforated and thus allow the fire to burn direct into them. Air for
the combustion is supplied above the fire and may be supplied by tubes opening
into the upper end of the herein before described connecting flues.
Suitable means such as a slide or door in the herein before described perforated
flues or shafts may be provided to allow of the escape of smoke when the fire is
first ignited.
In order to enable my Invention to be better understood I will proceed to
describe the same by reference to the accompanying Drawing in which for the
purpose of illustration I have shown the improvements applied to a close heating
stove. Figure 1, is a front elevation and Figure 2, is a section of the stove. Similar
letters in both the Figures represent similar parts.
a, is the flue or pipe passing from the ash pit b, to the upper part of the stove as
shewn in Figure 2, c is the flue or shaft (which I call the "combustion flue");
the said fluc c, extends downward through the fuel and is in communication with
the flue or pipe a; d, d, d, are the perforations in the lower part of the flue c;
c, c, are deflectors fixed in the flue c, for the purpose of causing a more thorough
mixture of the air and gases; ff, are the fire or grate bars which are turned up in
front, the horizontal portion of the bars forming the fire grate and the vertical
portions allow of the stove being used as an open fire by opening the doors g, g;
, is the door through which the fuel is supplied; i, ventilator in the door h, for the
admission of air; j, door in ash pit also provided with a ventilator k, for the
admission of air; &,, fire brick linings for the stove.
In the Drawing I have only shewn one pipe or flue a, and one combustion flue
or shaft c, but it will be evident that more than one such fue and one such shaft
may be employed.
By this construction fuel being supplied to the stove and ignited, that portion of
the smoke and unconsumed gases (which usually escapes by the chimney) together
with a supply of fresh air to assist the combustion will pass into the connecting
flue a, from the top (or other convenient part) of the stove and passing down the
said flue a, will be brought through the ash pit and up into the fire which enters
the "combustion flue or shaft c, through the perforations d, d, d, whereby the
smoke and unconsumed gases will be wholly burnt or nearly so, the heated
incombustible gases escaping through the flue or shaft which flue or shaft may be
continued in various forms, as for example as a coil round or through ovens
boilers and the like so as to utilize the heat of the said incombustible gases.
Having thus described the nature of my said Invention and shewn, a suitable
means of carrying the same into effect as applied to a close heating stove I would

page_text: have it understood that the Invention is also applicable to other descriptions and
forms of stoves, and to furnaces, steam and hot water boilers, cooking and baker's
ovens and the like, by increasing the number of combustion flues as required,
without departing from the peculiar character of my Invention. What I claim
is:-
Firstly. The method herein described of effecting the combustion in stoves and
furnaces of the smoke and unconsumed gases which usually escape by the chimney
by causing the same with a supply of air to be conveyed from over the fuel by a
flue or flues into a perforated "combustion flue in the fire as herein before
described.
Secondly. The general arrangement and construction of the improved stove
arranged and operating substantially as herein before described and represented in
the accompanying Drawing.
In witness whereof I the said Edmund George Lakeman have hereto set
my hand and seal this Third day of July in the year of our Lord One
thousand eight hundred and eighty two.
EDMUND GEO. LAKEMAN. (L.S.)