Improvements in Vaporizing Burners.
Year: 1898

page_text: Date of Application, 19th Mar., 1898-Accepted, 14th May, 1898
[Communicated from abroad by DR ARTHUR AF FORSELLES, of No. 1, Boulevards-
gatan, Helsingfors, Finland.]
Improvements in Vaporizing Burners.
I, HENRY HARRIS LAKE, of the Firm of Haseltine, Lake & Co., Patent Agents,
45, Southampton Buildings, in the County of Middlesex, 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 relates to burners or apparatus for vaporizing petroleum and
other volatile oils and for effecting the complete combustion of such vapour.
Although it is comparatively easy to obtain a complete combustion of alcohol
and the lighter hydrocarbons it is very difficult to produce such a mixture of air
and petroleum vapours that a complete combustion of the carbon contained in
the petroleum is obtained.
For this purpose 1 have constructed an apparatus in which the vaporized oil
draws air into the burner where it is mixed with the same, this mixture being
then conducted to the outlet from said burner where it is consumed.
In the accompanying drawing 1 have shown one form of construction of the
improved apparatus.
The said apparatus consists of a tube A closed at its upper end, into which
tube the petroleum is caused to pass by arranging the petroleum container at a
higher level than the lower end of the said tube, or by compressed air, or by other
suitable means if the apparatus is connected with a container situated lower than
the said tube. The tube A is arranged within a wider, curved tube B connected
with the said tube A by means of arms and the upper end of which is closed by
wire cloth or gauze D, and the lower, turned up end of which is provided with
a mouth B¹, ot small diameter than the rest of the tube.
From the upper part of the tube A a smaller tube O passes through the wall
thereof and through the wall of the tube B to the outside and is provided at its
lower end with a capillary opening C, the said opening being arranged at a
distance of about 8 millimetres above the mouth B. This tube, in order to
prevent condensation of the petroleum vapours, passes for a greater part of its
length within the tube B, to which it is fastened by soldering or in any other
suitable manner.
The tube A projects for about 15 millimetres above the wire cloth or gauze D.
The apparatus being at the commencement heated by means of spirit or in
any other suitable manner the supply of oil to the tube A begins, and the petroleum
is vaporized in the upper part of the same, the pressure driving the
petroleum vapours through the tube C. At the gas is forced through the
capillary opening and is blown into the mouth B₁ of the tube B in the form
of a conical jet, which becomes thoroughly mixed with air, whereupon the mix-
ture of air and petroleum vapours passes up through the widened part of the
tube B and is ignited above the wire cloth or gauze D. The upper end of
the supply tube is thus enclosed in an intense heating flame whereby a continuous
production of gas is effected.

page_text: Owing to the intense heat developed at the upper part of the tube A an inter-
mittent evaporization of the oil will take place, and the oil supply in the tube A
will be forced back towards the container, to be again forced up into the same
by the fluid column or by the pressure of the compressed air. In this way the
generation of gas will be irregular and the flame will therefore not be steady.
This may however be prevented by inserting in the supply tube A a rod E
around which is wrapped fine metal cloth or any other suitable material F.
Instead of this arrangement I may use a series of perforated diaphragms inserted
in the tube in a similar manner. The tube B may be formed of a number of
parts stamped from plates and then soldered together, The lower part of this
tube may also be widened in the manner shown in the drawing.
The above described apparatus may with advantage be used in all cases where
it is desirable to produce an intense heat, as for boiling, soldering, heating of
incandescent bodies and like purposes.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, as communicated
to me by my foreign correspondent, I declare that what I claim is:
1. In an apparatus for vapourizing petroleum and other volatile oils and effect-
ing a complete combustion of the same a supply-tube (A) placed within a wider
tube (B) the upper opening of which is situated somewhat lower that the upper,
closed end of the said supply tube, and the lower part of which is curved and provided
with a mouth (B¹) in combination with a tube (C) connected with the upper end
of the supply tube (A) and having a capillary opening (C) opposite to the
mouth (B) of the said wider tube (B) for the purpose of allowing a thin jet of
oil vapours to enter the tube B carrying with it a quantity of air, the mixture of
air and gases thus formed being ignited when escaping through the upper end
of the said tube B.
2. In the apparatus referred to in the first claim the mixing tube (B) being
U-shaped at its lower end and provided with a mouth (B¹) of less width than the
main part of the tube, the curved part of the said tube having a greater width
than the main part.
3. In the apparatus referred to in the first claim the insertion of a roll of wire
cloth or other material or a series of diaphragms in the oil supply tube (A) for the
purpose of obtaining a regular and uniform supply of oil and production of gas.
Dated this 19th day of March 1898.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.