Improvements[in and connected with Vapour Burners.
Year: 1897

page_text: Date of Application, 8th Nov., 1897
Complete Specification Left, 6th May, 1898-Accepted, 9th July, 1898
PROVISIONAL SPECIFICATION.
Improvements[in and connected with Vapour Burners.
I, LUDWIG DURR, of Baumstrasse, 1, Bremen, Germany, Civil Engineer, do
hereby declare the nature of this invention to be as follows;-
In the Specification of former Letters Patent granted to me No. 12771 of 1893
there is described a construction of oil vapour burners wherein two burners fed
from a single gasifying, vaporizing, or superheating body (hereinafter called a
vaporizing body) are arranged to cooperate one behind the other in such a manner
that the rear burner essentially heats the vaporizing body, while the front burner
serves as the illuminating or heating burner, whose practically unobserved flame
is, nevertheless, somewhat increased by the flame of the rear burner. The vapor-
izing body has been constructed hitherto preferably in the form of an annular
body heated from within.
Now, as long as the vaporizing body is of large dimensions, heating the vapor-
izing body essentially from within acts in, an excellent manner; but in the case
of small apparatus and consequently vaporizing bodies of small diameters, the
proper heating of the vaporizing bodies from within is difficult. For this reason
a gasifier or vaporizer (hereinafter called a vaporizer) 'for oil-vapour burners is,
according to this invention; provided with two burners arranged to cooperate
one behind the other in such a manner that the heating flame spreads over it from
without so that these apparatus may be constructed of such sizes as to produce
smaller effects than have hitherto been attainable with oil-vapour burners.
The accompanying drawings show two constructions of vapour-burners embody-
ing this invention.
An apparatus of the smallest construction is shown in the Figs. 1, 2, and 3,
whereof
Fig. 1 is a longitudinal section of the apparatus,
Fig. 2 a cross section of the vaporizer, and
Fig. 3 shows a detail.
The vaporizer body, in which the petroleum gas or vapour (hereinafter called
vapour) is produced, consists preferably of a hollow body d, which, in the simplest
way, is made in one piece. The body may be made of suitable cast iron, such as
Mitisguss; the vaporizer d is provided with a tubular piece, by means of which it
is connected with the pipe a for supplying the petroleum or other oil (hereinafter
called petroleum) to be used. The petroleum enters the vaporizer from the supply-
pipe a through fine perforations in the tubular piece; and for regulating the
supply of liquid, there is inserted into the upper part of the tubular piece a valve b
shown in Fig. 3. This valve is easily accessible from above, as is evident from
the drawing for cleaning, it is easily removed and a cleaning device is then forced
through the perforations c. In the front point of the vaporizer the illuminating
or heating burner g is inserted directly; from the other side of the vaporizer a
tubular piece e leads to the heating burner f, which is mounted at the bottom or
inner end of the bell or casing h where it is capable of being easily examined.

page_text: The petroleum enters in a regulated but sufficient quantity slowly into the
vaporizing space. For putting the apparatus into action the vaporizer is first
heated by a burning wad of cotton-waste or the like placed around the same.
Petroleum-vapour passes through the pipe e to the heating burner and ignites in
front thereof, and the heating Hame thus produced spreads permanently over the
vaporizing body, heating the latter to such a degree that the petroleum is trans-
formed with certainty into superheated gas or vapour. This complete gasification
or vaporization has also the result that deposits are not formed in the vaporizing
space. The vaporizer d may be of any suitable shape. In order to utilise the
heating flame as much as possible it is however advisable to give the vaporizer
such a shape that the heating will spread over it on all sides; for this reason it
is preferred in this construction, to adopt the ellipsoidal form shown.. The form
of the front burner g depends on whether it is to be used for heating or for
illuminating. After this burner has been screwed out, the vaporizing space can
be easily examined.
Figs. 4 and 5 show a second construction of the herein described vapour-burner
in longitudinal section and in front elevation. In order to prevent the vapourizer
from cooling quickly the vapourizer is divided, so that the two burners f and g
have separate vaporizing chambers d and d respectively, each of which is pro-
vided with a separate petroleum supply-pipe c¹ or 3. The feeding and arrange-
ment of these supply-pipes correspond to those of the construction shown in Fig. 1.
When the petroleum-supply of the pipe for the illuminating or heating
burner g is shut off, the left half of the vaporizer and its appurtenances continue
to work, so that the heating burner is fed with gas or vapour as formerly and it
heats the vaporizer so perfectly that, when the petroleum supply to the vapor-
izing chamber is reopened, the illuminating burner g enters at once in action.
In this construction the vapourizer is provided at each end with a removable
closure-head k or k¹.
This construction of the apparatus is particularly suitable for heating purposes,
and Figs. 6 and 7 represent a steam-boiler furnace provided with such vapour-
burners. A marine boiler is shown heated by two apparatus arranged
one beside the other in front of the fire-flue, and each apparatus is
mounted on a wheeled carriage-frame w. To the front-end of the apparatus is
secured, as shown in Fig. 7, a cone 7 for connecting the apparatus with the boiler.
At m, close to the end of the apparatus, this cone is circumferentially perforated
to such an extent that there will be a sufficient supply of air to the flame of the
heating burner. For controlling the air-supply a slotted valve n is provided.
The longitudinal outer casing of the apparatus may be lined, if the heating
apparatus is submitted to a high temperature, with a layer of refractory material
such as fire brick.
As will be evident, the constructions shown may be varied with regard to the
material and details without departing from the nature of the invention.
Dated this 8th day of November 1897.
I, LUDWIG DURR, of Baumstrasse, 1, Bremen, Germany, Civil Engineer, do
hereby declare the nature of this invention and in what manner the same is to be

page_text: performed, to be particularly described and ascertained in and by the following
statement:-
In the Specification of former Letters Patent granted to me No. 12771 of 1893
there is described a construction of oil-vapour burners wherein two burners fed
from a single gasifying, vaporizing, or superheating body (hereinafter called a
vaporizing body) are arranged to co-operate one behind the other in such a manner
that the rear burner essentially heats the vaporizing body, while the front burner
serves as the illuminating or heating burner, whose practically unobscured flame
is, nevertheless, somewhat increased by the flame of the rear burner. The vapor-
izing body has been constructed hitherto preferably in the form of an annular
body heated from within.
Now, as long as the vaporizing body is of large dimensions, heating the vapor-
izing body essentially from within acts in an excellent manner; but in the case
of small apparatus and consequently vaporizing bodies of small diameters, the
proper heating of the vaporizing bodies from within is difficult. For this reason
a gasifier or vaporizer (hereinafter called a vaporizer) for oil-vapour burners is,
according to this invention, provided with two burners arranged to co-operate
one behind the other in such a manner that the heating flame spreads over it from
without so that these apparatus may be constructed of such sizes as to produce
smaller effects than have hitherto been attainable with oil-vapour burners.
The drawings filed with my Provisional Specification show two constructions
of vapour-burners embodying this invention.
An apparatus of the smallest construction is shown in the Figs. 1, 2, and 3,
whereof
Fig. 1 is a longitudinal section of the apparatus,
Fig. 2 a cross-section of the vaporizer, and
Fig. 3 shows a detail.
The vaporizer body, in which the petroleum gas or vapour (hereinafter called
vapour) is produced, consists of a hollow body d, which, in the simplest
arrangement, is made in one piece. It may be made of suitable cast iron, such
as "Mitisguss." The vaporizer d is provided with a tubular piece, by means of
which it is connected with the pipe a for supplying the petroleum or other oil
(hereinafter called petroleum) to be used. The petroleum enters the vaporizer
from the supply-pipe a through fine perforations c in the tubular piece; and for
regulating the supply of liquid, there is inserted into the upper part of the tubular
piece a valve b shown in Fig. 3. This valve is easily accessible from above, as
is evident from the drawing; for cleaning, it is easily removed and a cleaning
Into the front end of the
device is then forced through the perforations c.
vaporizer the illuminating or heating burner g is inserted directly; a tubular
piece e leads from the other side of the vaporizer to the heating burner f, which
is mounted at the bottom or inner end of the bell or casing h where it is capable of
being easily examined.
The petroleum enters in a regulated but sufficient quantity slowly into the
vaporizing space. For putting the apparatus into action the vaporizer is first
heated by a burning wad of cotton-waste or the like placed around the same.
Petroleum-vapour passes through the pipe e to the heating burner and ignites in
front thereof, and the heating flame thus produced spreads permanently over the
vaporizing body, heating the latter to such a degree that the petroleum is trans-
formed with certainty into superheated gas or vapour. This complete gasification
or vaporization has also the result that deposits are not formed in the vaporizing
space.
The vaporizer d may be of any suitable shape. In order to utilize the
heating flame as much as possible it is however advisable to give the vaporizer
such a shape that the heating will spread over it on all sides; for this reason it
is preferred in this construction, to adopt the ellipsoidal form shown. The form
of the front burner g depends on whether it is to be used for heating or for

page_text: illuminating. After this burner has been screwed out the vaporizing space can
be easily examined.
Figs. 4 and 5 show a second construction of the herein described vapour-burner
in longitudinal section and in front elevation respectively. In order to prevent
the vaporizer from cooling quickly, should the working be interrupted it is
divided, so that the two burners f and g have separate vaporizing chambers d
and d' respectively, each of which is provided with a separate petroleum supply-
pipe c¹ or c². The feeding and arrangement of these supply-pipes correspond
to those of the construction shown in Fig. 1.
When the petroleum-supply of the pipe ca for the illuminating or heating
burner is shut off, the left half of the vaporizer and its appurtenances continue
to work, so that the heating burner is fed with gas or vapour as before and it
heats the vaporizer so perfectly that, when the petroleum supply to the vapor-
izing chamber is reopened, the illuminating burner g enters at once in action.
In this construction the vaporizer is provided at each end with a removable
closure-head k or k¹.
This construction of the apparatus is particularly suitable for heating purposes,
and Figs 6 and 7 represent a steam-boiler furnace provided with such vapour-
burners. A marine boiler is shown heated by two apparatus arranged
one beside the other in front of the furnace-flue, and each apparatus is
mounted on a wheeled carriage-frame w. To the front-end of the apparatus is
secured, as shown in Fig. 7, a cone 7 for connecting the apparatus with the boiler.
At m, close to the end of the apparatus, this cone is circumferentially perforated
to such an extent that there will be a sufficient supply of air to the flame of the
heating burner. For controlling the air-supply a slotted valve n is provided.
The longitudinal outer casing of the apparatus may be lined, if the heating
apparatus is submitted to a high temperature, with a layer of refractory material
such as fire brick.
As will be evident, the constructions shown may be varied with regard to the
material and details without departing from the nature of the invention.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what I
claim is:-
-
1. An oil vapour-burner provided with two co-operating burners arranged one
behind the other, and wherein the gasification or vaporization of the petroleum
or other oil is effected in a gasifying chamber such as d of ellipsoidal or other
suitable form upon and over the external surface of which the flame from the
rearward of the two burners spreads, substantially as set forth and shown in the
drawings.
2. In apparatus of the kind referred to in the preceding claim forming the
gasifying or vaporizing vessel with several chambers d done for each burner
substantially as shewn in and described with reference to Fig. 4 of the drawings.
3. A vapour-burner of the kind referred to in Claim 1 arranged on wheels and
otherwise adapted for heating purposes substantially as shewn in and described
with reference to Fig. 7 of the drawings.
4. In a vapour burner of the kind referred to in Claim 3 means such as herein
described for controlling the supply of air to the heating flame.
5. The improved vapour-burner herein described with reference to the drawings.
Dated this 6th dov of Nov 1908
F. WISE HOWORTH,
46, Lincoln's Inn Fields, London, W.C., Agent for the Applicant.