AN IMPROVED COOKING. STOVE
Year: 1881

page_text: LETTERS PATENT to John Imray, of No. 28, Southampton Buildings, in the
County of Middlesex, for an Invention of AN IMPROVED COOKING. STOVE."
A communication from abroad by La Société des Specialités Mecaniques
PROVISIONAL SPECIFICATION left by the said John Imray at the Office of
the Commissioners of Patents on the 17th September 1881.
JOHN IMRAY, of No. 28, Southampton Buildings, in the County of Middlesex.
"AN IMPROVED COOKING STOVE." [A communication from abroad by La Société
des Specialités Mecaniques Reunies, an Incorporated Company, of Paris, France.]
According to this Invention a cooking stove is constructed in the following
manner-On a base, which is made of wood to diminish loss by conduction of
heat, and which is raised a little from the floor by an iron rim perforated to
permit passage of air, is fixed a double cylindrical casing, having the annular space
between its inner and outer walls filled in with sawdust. In the centre on the
base, which is covered by an iron plate, is placed the fire box, in which bars project
upwards to receive between them and hold in an upright position blocks of fuel,
preferably of the kind made up with asbestos. Under the fire box there is a
passage through the base for admission of air, and this passage is governed by a
sliding damper having a hole through it to admit a small amount of air when
the damper is closed; above the air passage there are deflecting plates to distribute
the entering air to supply the fuel above. The cooking vessel or boiler is
cylindrical, of diameter a little smaller than the interior of the stove casing, so
that there is a narrow annular space all round it. The bottom of the boiler is
hollowed upward so that the hot products of combustion first ascend and play on
the upper surface of the hollow, then descend and pass round the downwardly
projecting edges of the boiler and up the annular space between it and the casing.
The boiler has two handles hinged to a projecting Hange at its upper edge; when
it is to be heated these handles are turned down so as to bear against a bead or
lip projecting from the stove casing, thus supporting the boiler, so that its flange
is held sufficiently high above the mouth of the casing to permit egress of the
products of combustion. By turning the handles upwards the boiler can be let
down so that its flange rests on the casing, thus closing the exit. The boiler is
provided with a hollow cover, having its interior filled with saw dust to diminish
loss of heat by radiation.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said John Imray in the Great Seal Patent Office on the 10th March
1882.
JOHN IMRAY, of No. 28, Southampton Buildings, in the County of Middlesex.
"AN IMPROVED COOKING STOVE." A communication from abroad by La Société
des Specialités Mecaniques Reunies, an Incorporated Company, of Paris, France.
According to this Invention a cooking stove is constructed in the following
manner: Ön a base, which is made of wood to diminish loss by conduction of heat,
and which is raised a little from the floor by an iron rim perforated to permit
passage of air, is fixed a double cylindrical casing, having the annular space
between its inner and outer walls filled in with sawdust. In the centre on the base,
which is covered by an iron plate, is placed the fire box, in which bars project
upwards to receive between them and hold in an upright position blocks of fuel,
preferably of the kind made up with asbestos. Under the fire box there is a
passage through the base for admission of air, and this passage is governed by a
sliding damper having a hole through it to admit a small amount of air when the
damper is closed; above the air passage there are deflecting plates to distribute
the entering air to supply the fuel above. The cooking vessel or boiler is
cylindrical, of diameter a little smaller than the interior of the stove casing, so
that there is a narrow annular space all round it. The bottom of the boiler is
hollowed upwards, so that the hot products of combustion first ascend and play on
the upper surface of the hollow, then descend and pass round the downwardly
projecting edges of the boiler and up the annular space between it and the casing.
The boiler has two handles hinged to a projecting flange at its upper edge; when
it is to be heated these handles are turned down so as to bear against a bead or
lip projecting from the stove casing, thus supporting the boiler, so that its flange
is held sufficiently high above the mouth of the casing to permit egress of the
products of combustion. By turning the handles upwards the boiler can be let
down so that its flange rests on the casing, thus closing the exit. The boiler is
provided with a hollow cover having its interior filled with sawdust to diminish

page_text: by bent wires or metal strips f. f. The boiler is kept central by springs L attached
to the inner shell of the casing.
Having thus described the nature of this Invention and in what manner the
same is to be performed, as communicated to be my foreign correspondents, I
claim,―
First. The construction of cooking stove with wooden base with double walls
filled with non conducting material, with fire box arranged to hold fuel blocks and
with regulated air supply, substantially as herein described.
Second. The construction of boiler adapted to the said stove with its bottom
hollowed upwards, its double lid filled with non conducting material, and its
handles by which it can be supported, substantially as herein described.
In witness whereof, I, the said John Imray, have hereunto set my hand and
seal, this Tenth day of March, in the year of our Lord One thousand eight
hundred and eighty two.
JOHN IMRAY. (L.S.)