Improvements in Burners for Oil Stoves for Cooking and Heating Purposes.
Year: 1891

page_text: COMPLETE SPECIFICATION.
Improvements in Burners for Oil Stoves for Cooking and Heating
Purposes.
I HERMANN KLEINSCHEWSKY Hardware Manufacturer, of Jacobsstrasse,
Berlin, in the Empire of Germany, 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 :-
This invention for improvements in burners for oil stoves for cooking and heating
purposes has for its object to obtain with the flat burners of oil stoves a gas-like
flame of great heating power such as is obtained at the present time with oil stoves
having round burners.
In the accompanying sheet of illustrative drawings :
Fig. 1 is a vertical section of an oil cooking stove constructed according to this
invention, and
Fig. 2 is a longitudinal section of the burner of the stove and
Fig. 3 is a plan of the same.
The burner is provided with two flat wick tubes 6 and is inserted in the oil
reservoir a and firmly held by the bayonet joints at a¹ a¹. Between the two wick
tubes 6 is arranged a box e covered at the top with a perforated plate d and having
its side walls e open at the bottom. The air enters the box c in the direction of
the arrow and passes through the perforations of the plate d which distributes
the current of air which acts finally on the inner surfaces of the two flames.
The gas-like flame is obtained by the use of a spreader g, not hitherto used for
flat burners, in combination with a peculiar burner appendage or contracter
directing the supply of air from the outside to the outer surfaces of the flames.
The spreader g is mounted on a small tube h, its width being equal to the distance
between the two wick tubes and it is provided with perforations i near its central
longitudinal axis and through which air from the box c passes and mixes above
with the two flames. The contracter has the shape of a shallow cup or dish and
is provided with rectangular guides / passing through openings m formed at the top
of the walls e so that it can be accurately fixed in position and in the centre with a
rectangular opening which forms in conjunction with the spreader two narrow
passages for the two flames. Below the upper longitudinal edges of this opening is
an air passage n inclined outwardly (Fig. 1) and the edge of the contracter is bent
over to form a rim and furnished above with openings also for the passage of air.
This outer air supply produces in combination with the spreader g a blue radiating
gas flame of great heating power. Above the contracter is a conical chimney
which is rigidly connected either with the contracter or with the outer casings of
the stove by means of a flat fitting dish r.
The spreader g can also be firmly connected with the contracter k or formed
integrally therewith by rivetting its ends at to the contracter k¹ or the contracter
and the spreader are cast in one piece.
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 duplex burner for an oil stove, the means for producing a gas-like flame
for cooking and heating purposes consisting of a spreader y between and above the
two wick tubes b b and of a contracter provided with air passages for conveying
to the outer surfaces of the flames the air required for combustion.

page_text: 2. Burners for oil stoves constructed substantially as described with reference
to the drawings.
Dated this 21st day of October 1891.
WHEATLEY & MACKENZIE,
40, Chancery Lane, London, Agents.