Improvements in Stoves.
Year: 1893

page_text: Date of Application, 4th Feb., 1893
Complete Specification Left, 26th May, 1893-Accepted, 9th Sept., 1893
PROVISIONAL SPECIFICATION.
Improvements in Stoves.
I, HENRI ALPHONSE DAVAL, Lamp Manufacturer of 16 Rue Sainte Appolline,
Paris in the Republic of France, do hereby declare the nature of this invention to
be as follows:-
This invention for improvements in stoves has for its object to construct a stove
for use with gas or oil and which can readily be converted from a cooking stove to a
heating stove or vice versa and to provide an improved apparatus for burning oil in oil
stoves; and consists essentially in providing the stove with interchangeable tops,
one suitable for holding cooking utensils directly over the burner and the other for
radiating the heat from the burner and in an improved apparatus for converting
the oil into gas to be consumed in the burner.
In an oil stove constructed according to this invention, an ordinary heating
burner such as is employed for coal gas is mounted in an open casing fixed over an
oil reservoir and separated from it by a suitable plate in the casing. The upper
part of this casing is adapted to receive and retain either a grid for holding cooking
utensils or a radiator chamber for receiving the heated gases and radiating the
heat so as to heat a room or chamber, the radiator and grid being interchangeable
at pleasure.
In order to generate the gas one or more tubes filled with cotton wick are fixed
to the burner casing and terminate at the lower extremity in the oil reservoir and
at the upper in a small chamber heated by a small oil burner supplied from and
fixed to the oil reservoir and provided with means for adjusting the flame and so
regulating the generation of gas. A small tube leads from the small chamber to
a nozzle situated in the open ended tube leading to the gas burner and where the
gas mixes with air before being burnt.
The wick tube is covered by a perforated cap or by gauze.
WHEATLEY & MACKENZIE,
40, Chancery Lane, London, W.C., Agents.
COMPLETE SPECIFICATION.
Improvements in Stoves.
I, HENRI ALPHONSE DAVAL, Lamp Manufacturer of 16 Rue Sainte Appolline,
Paris in the Republic of France, 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 stoves has for its object to construct a stove
for use with gas or volatile oil and which can readily be converted from a cooking
stove to a heating stove or vice versa, and to provide an improved apparatus for
burning volatile oil in stoves; and consists essentially in providing the stove with
interchangeable tops, one suitable for holding cooking utensils directly over the
burner, and the other for radiating the heat from the burner, and in an improved
apparatus for converting the volatile oil into gas to be consumed in the burner.
In an oil stove constructed according to this invention, an ordinary heating
burner such as is employed for coal gas is mounted in an open casing fixed over an
oil reservoir and separated from it by a suitable plate fixed in the casing and over
and under which the air is free to circulate. The upper part of this casing is
adapted to receive and retain either a grid for holding cooking utensils or a

page_text: radiator chamber for receiving the heated gases and radiating the heat so as to
heat a room or chamber, the radiator and grid being interchangeable at pleasure.
In order to generate the gas one or more tubes filled with cotton wick are fixed
outside the open or burner casing and terminate at the lower extremity in the oil
reservoir and at the upper in a small chamber heated by a small oil burner supplied
from and fixed to the oil reservoir and provided with means for adjusting the wick
and so regulating the flame and consequently the generation of gas.
leads from the small chamber to a nozzle situated in the open ended tube leading
to the gas burner and where the gas mixes with air before being burnt.
The wick tube is covered by a perforated cap or by gauze.
In the accompanying sheet of illustrative drawings
A small tube
Figure 1 is a plan of the stove arranged as a cooking stove constructed according
to this invention and--
Figure 2 is a half elevation and half section on X Y of the the stove showing the
radiator raised from its working position.
Figure 3 is a half elevation and half section on X V showing the radiator in
position.
Figures 4 and 5 are detail views of the gas generators.
The oil reservoir a and burner casing of the stove are fixed together with a
plate S between the reservoir and burner to prevent the heat of the burner
affecting the oil in the stove, suitable holes being provided in the casing! to allow
of free circulation of air over and under the plate. The upper part of the burner
casing is adapted to receive either the cooking grid k or the radiator chamber m.
The oil reservoir a is provided with an orifice closed by a thumb screw c for the
introduction of oil. The gas generator consists of a small chamber i connected by
one or more pipes with the oil reservoir a. The pipes are provided with cotton or
other wick so as to supply oil to the chamber i. The chamber i is heated by a
small burner e supplied with oil from the reservoir a or from an independent supply
and is also provided with wick the height of which in the tube is regulated by a
pinion connected to the operating head e. The chamber i and burner e are
surrounded by the hood t. The chamber i is provided with an outlet pipe which
enters freely into the end of the tube of the gas burner r mounted in the casing 1.
The cover n of the radiator m is provided with suitable outlets.
In using the stove the reservoir being filled with a volatile oil, the small burner e
is first lighted and the oil supplied to the chamber is thoroughly volatilized and
passes to the pipe of the burner r where it mixes with air before being consumed
in the burner r.
Figure 5 shows a burner for heating the chambers in which the wick is adjusted
by one or more pinions on the same axis and in which the burner tube is covered
by a perforated cap or gauze so that the oil is vaporized before being burned.
Ordinary coal gas may be supplied to the burner instead of oil gas.
?"
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is :-
1. The arrangement of an oil or gas stove with interchangeable tops, one adapted to
radiate the heat from the burner and the other adapted for holding cooking utensils
immediately over the flame, substantially as described.
2. The arrangement of a stove, adapted to use either coal gas or a volatile oil
substantially as described.
3. The arrangement for governing the generation of gas in a gas generator for
volatile oil stoves, consisting in heating the generating chamber by a burner the
flame of which is regulated substantially as described.
4. The arrangement of adjustable burner for heating the generating chamber
of a volatile oil stove consisting of the burner covered by a perforated cap and
supplied with oil by a wick the height of which is adjustable substantially as
described.

page_text: 5. The improvements in stoves substantially as described with reference to the
drawings.
Dated this 26th day of May 1893.
WHEATLEY & MACKENZIE,
40, Chancery Lane, London, W.C., Agents.