IMPROVEMENTS IN STOVES
Year: 1860

page_text: PROVISIONAL SPECIFICATION left by Robert Dressel and Ferdinand
Levestamm at the Office of the Commissioners of Patents, with their
Petition, on the 7th November 1860.
We, ROBERT DRESSEL & FERDINAND LEVESTAMM, both of New Oxford
Street, in the County of Middlesex, General Agents, do hereby declare the
nature of the said Invention for "IMPROVEMENTS IN STOVES," to be as follows:-
Our Invention relates to stoves applicable for heating rooms, dessicating,
cooking, and for other purposes. It consists of a chamber of rectangular
or other form, somewhat like ordinary enclosed stoves; it is divided into three
compartments, the lower one the ash-pit; above it the grate and chamber to
contain the fire, which is enclosed at top by a suitable door or cover, and
above that the third chamber, which may be used as an oven. This stove we
usually make of cast iron, but other material may be used, and we line it with
fire-bricks up to the cover above the fire, or it may be fire-clay suitably
formed. The fire is arched over by the fire-clay lining, and the door before
mentioned fitted thereto. This door may close with a sand or other smoke-
tight joint. The fire chamber communicates with the chimney by a suitable
pipe leading from the upper part. The oven space also has a similar com-
munication with the chimney, and this chamber is furnished with a door in
the side, where the fuel is introduced & dropped through the door or cover
above the fire chamber; the first-mentioned door also answers for introducing.
There is also a door to the ash-
or removing anything into or from the oven.
pit, which closes very but not perfectly air-tight. This stove is placed on feet

page_text: to raise it from the ground, and we introduce tubes of cast iron or other
suitable material in a vertical direction inside of the fire and ash-pit spaces.
These tubes we place in close proximity, or partly imbedded in the fire-clay
lining; they are open at the bottom under the stove to the room in which the
stove is placed, and at the upper ends they curve outwards, and open through
the sides of the stove also to the room or chamber in which the stove is placed,
and near the upper part of the clay lining. These tubes being disposed around
the fuel in the stove, and in contact therewith, become hot and rarify the air
in the tubes, which consequently ascends and escapes at the upper part, the
cold air of the room entering from the bottom; in this way a circulation of air
is maintained so that the whole air of the room or chamber soon becomes
heated to any degree that may be required. The fuel, as before mentioned,
is supplied at the top, and when once the fire chamber is filled will last
twenty-four hours without replenishing. It is ignited from the ash-pit below,
and as soon as properly kindled the ash-pit door is shut, the passage of air
through which regulates the combustion, which should not be allowed to blaze,
but merely retain a more or less bright incandescent state; valves are fitted
to the air tubes to more or less close them to regulate and restrict the
circulation of air therein, and so regulate the heat of the chamber or room as
desired. The upper chamber being connected with the chimney, as before
mentioned, all smell passes away thereby, when that chamber is used as an
oven for cooking, and prevents any disagreeable sinell in the room.