Improvements in and relating to Oil Stoves.
Year: 1893

page_text: Date of Application, 11th Oct., 1893
Complete Specification Left, 11th July, 1894-Accepted, 8th Sept., 1894
IIUY IDIONAU
Improvements in and relating to Oil Stoves.
1, JOSEPH FOUILLOUD, of 21 Boulevard Poissonnière, Paris, in the Republic
of France, Builder, do hereby declare the nature of this invention to be as
follows:-
My invention relates to oil stoves adapted to operate by the aid of a blow pipe
supplied with mineral oil. It consists in the construction of a generator or
carburetor designed for the production of the gas to be distributed to a certain
number of burners; in the arrangement, for this generator or carburetor, of
concentric tubes in which an interior double current of air is established for the
purpose of obviating any hissing noise without injuriously affecting the intensity
of the flame; in the particular arrangement of a plug performing the part of a
safety valve for closing the oil reservoir, and in various other arrangements of
detail which are hereinafter set forth.
In my improved oil stove the wick dips into the oil reservoir and is contained in
a tube screwed to the central part of a cup designed for the heating. The said
tube is pierced with a hole which terminates in a first chamber wherein the
gasification of the oil commences. This chamber, secured upon the central tube,
has on the top above the said hole a certain number of pipes terminating in
burners. At the extremity of each of these pipes is a chamber in which the
gasification of the oil is completed, the introduction of this oil being regulated by
a cone valve at one end of a spindle having a knob at its other end.
Upon the aforesaid chamber is arranged a jet through which the gas escapes.
This gas passes through a pipe to the burner after it has been mixed with air
introduced through slits in a sheath round the said pipe, the inlet of air being
regulated by a sleeve adapted to slide on the latter.
As regards the generator, that is to say the burner placed directly above the
oil reservoir, the sheath for admitting air surrounds a blow pipe pierced with holes
and screwed directly upon a jet. The object of this blow pipe in combination with
the said sheath is to suppress, by establishing a double current of air, the hissing
noise produced during the combustion. For the same purpose a cap on the generator
burner is pierced with holes at its lower part for another air current.
The oil cup consists of an annular cavity in which cotton, asbestos or other
textile material is placed. It is fed by opening the valve which admits a certain
quantity of oil from the reservoir but it will be understood that if this valve be
dispensed with it will be sufficient to pour a few drops of oil upon the wick contained
in the said cup. This oil as it burns heats the central tube and in a few moments
the gas produced from the oil coming from the reservoir has a sufficient pressure
to be admitted into the blow pipe. At this moment the above-mentioned cone
valve is opened, which through the jet allows the escape of the gas which burns
after it has mixed with the air admitted. The oil in the cup burns without danger
inasmuch as it cannot spread, having been imbibed by the wick contained in the
said cup. Moreover the feed of oil to this cup does not present any inconvenience
and there is no need for special precaution nor for using an oil can. A special
device is provided above the cap for ensuring a smokeless combustion.
When the generator burner has once been lit the gasification will continue in a
regular manner and the feed of gas to the other burners will be effected without
difficulty. The generator burner is mostly used, because without it the other
burners will operate with difficulty.

page_text: I provide the oil reservoir with a plug enclosing a valve which has a rod made
of square transverse section and traversing the centre of the said plug. The valve
under the action of a spring bears upon a seat formed in the part into which the
plug is screwed. The plug, valve and its spring are removed together for filling
the reservoir which takes place through the hole formed in the aforesaid part.
When the whole has been put back in its place the valve can rise under the action
of a greater interior pressure than the tension of its spring which is then compressed.
The escape of gas takes place through the space left between the valve rod and
the hole in the plug.
Dated this 11th day of October 1803
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.
Improvements in and relating to Oil Stoves.
I, JOSEPH FOUILLOUD, of 21 Boulevard Poissonnière, Paris, in the Republic
of France, Builder, 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 :-
My invention relates to oil stoves adapted to operate by the aid of a pipe supplied
with mineral oil. It consists substantially in the construction of a generator or
carburetor designed for the production of the oil gas to be distributed to a certain
number of burners; in the arrangement, for this generator or carburetor, of
concentric tubes in which an interior double current of air is established for the
purpose of obviating any hissing noise of the air without injuriously affecting the
intensity of the flame; and in various other arrangements of detail which are
hereinafter set forth.
In the accompanying drawing
Figure 1 is a longitudinal section of an oil stove with several burners constructed
according to my invention.
Figure 2 is a corresponding plan, while
Figure 3 is a horizontal section on the line 1-2 of Figure 1.
In my improved oil stove thus represented a wick dips into the oil reservoir A
and is contained in a tube B screwed to the central part of a cup a designed for
the lighting or starting.
The tube B is provided at the upper part with a hole which terminates in a
chamber b designed for the gasification of the oil. This chamber is provided in a
metallic piece screwed upon the tube B, and communicates through a hole c covered
with woven fabric with a certain number of pipes C, C¹, C', Figure 3 terminating
respectively in the central burner D and in the annular burners D' D', Figures
and 2. At the extremity of each of these pipes is a cone valve actuated by a
button d, d', or d².
and designed to distribute the oil gas to a second
chamber e,
the object of which is to complete the gasification of the oil.
Above this supplementary chamber e e¹. . . is a jet provided with a capillary
hole permitting of the escape of the oil gas which is mixed with a certain quantity
of air introduced through the lateral slits in a sheath E, E' or E.
el
The air, introduced through the sheath E of the burner D, is divided into two
currents; one passing through the slits in a central adjutage h screwed directly
upon the jet where it mixes with the jet of oil gas, and the other passing between
the said sheath and the said adjutage in order to mix with the first mixture produced
at the orifice of the adjutage h.
The object of the adjutage combined with the sheath E is to suppress by the
double current of air produced, the hissing noise which is noticed in ordinary blow

page_text: pipes. For the same purpose the cap of the central burner D may also be pierced
with holes at its lower part for another current of air.
The ignition of the mixture of air and oil gas takes place, not in a pipe as in
the oil stoves heretofore employed, but at the surface of the burners D, D', D'.
pierced with holes like ordinary gas burners.
The lighting must begin by the central burner D which serves as a generator
for the production, in the chamber b, of oil gas designed for the feed of the other
burners. However, for the starting it is expedient to utilize the small cup or
cavity a in proximity to the gasifying chamber b and containing asbestos, cotton or
other textile material. The small cup is supplied with oil through the opening
of a cone valve i in communication with the reservoir A. It is understood that if
this valve did not exist it would be sufficient to pour some drops of oil into the
cup a.
The combustion of the oil in this cup heats the tube or pipe B and in a
few moments the oil in the reservoir possesses a sufficient pressure for rising into
the chamber 6 where under the action of the heat it is immediately gasified.
The oil gas thus produced is then admitted, through the opening of the cone
valve of the central burner, into the supplementary gasifying chamber
through the jet finto the adjutage where it is mixed with the air introduced in
the manner herein before set forth. The mixture of air and oil gas may then be
lighted at the surface of the burner between D. In the flame of this burner are
placed metallic rods k fixed to the cap and whose bent extremities descend again
towards the chamber b in order to heat the latter by conduction and continue the
gasification of the oil without the aid of the cup a.
e,
and hence
The generation of the oil gas being thus ensured I may then open the cocks of
the other burners which operate like ordinary burners.
It will be observed that the feed of the cup a for the starting offers no incon-
venience, and necessitates by reason of the cock i no special precaution nor any
oil fluor; that the combustion takes place without smoke by reason of the smoke
consumer placed above the cup a; and that the reservoir A is filled through the
medium of a plug m forming a valve and opposing any explosion which might
result from too great a tension.
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 :-
First. A stove for mineral oil, characterized by a generator burner designed to
gasify the oil and by annular burners in any number burning the oil gas like
ordinary coal gas, as herein before specified.
Second. In the herein described stove for mineral oil (a) the arrangement
of the gasifying chamber b from which as many pipes C C¹ C. leave as there
are burners D D¹ D'. ... in the stove, each pipe having a cone valve for
distributing oil gas. (b) the arrangement, for the generator burner, of an
adjutage in combination with a sheath E permitting the arrival, at the oil gas
jet, or a double current of air, the said mixture of air and oil gas burning at the
surface of the burner and pouring into the pipe, and the suction of air taking place
without noise. (c) the arrangement, for burners other than the generator burner,
of a perforated crown in combination with a chamber for mixing air and oil gas,
the said mixture burning at the surface of this crown, the whole substantially as
described with reference to the drawing.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.