Improvements in Self Generating Vapour Burner Apparatus.
Year: 1898

page_text: Date of Application, 22nd Aug., 1898-Accepted, 15th Oct., 1898
COMPLETE SPECIFICATION.
Improvements in Self Generating Vapour Burner Apparatus.
We, PAUL GLUD, of 25, Ladegaardsvej, Manufacturer, and CARL OSKAR
NIELSEN, of 4, Ahlmannsgade, Tinman, both of Copenhagen, Denmark, do hereby
declare the nature of this invention. and in what manner the same
to be per-
formed to be particularly described and ascertained in and by the following state-
ment:―
The invention has relation to self generating vapour burners.
In these burners as heretofore constructed the generator has been arranged
relatively to the burner tip or nozzle so as to lie in advance of the latter, or within
or at least very near the zone of combustion, and this requires a somewhat com-
plex arrangement of feed and vapour pipes, the former extending from the source
of supply beyond the burner tip or nozzle to the generator and the vapour pipes
extending back from the generator to the burner.
It is well known that in the distillation or vaporization of volatile combustible
liquids, such as the hydrocarbons, solid residues are formed such as carbon and carbon
compounds which adhere to the walls of the pipes and generator, become very
hard and rapidly foul the same to such an extent as to necessitate frequent cleans-
ing, a difficult and tedious operation owing to the relative arrangement of the
generator, the burner and the feed and vapour pipes and one which in many cases
can not be performed by the general public.
Furthermore self generating burners such as described are not readily applic-
able to portable heating apparatus in the form of lamps or the like, while the
use of volatile hydro carbons by careless and inexperienced persons is at all times
more or less dangerous.
Our invention has for its object the provision of means whereby the above diffi-
culties are effectually avoided and whereby the construction of the burner is very
much simplified and cheapened, as well as adapted for use with stationary or
portable supply reservoirs or founts, and the danger of explosion minimised.
But that our invention may be fully understood we will describe the same in
detail reference being had to the accompanying drawings in which
Figure 1 is a vertical central section of our improved self-generating vapor burner,
combined with a supply reservoir or fount.
Figure 2 is a top plan view of the burner proper.
Figure 3 is an elevation, and Figure 4 a top plan view of the generator
detached...
.A indicates the fount, which is provided with a pump whereby air can be
forced into the fount and the liquid fed to the generator by air pressure. This
pump may be of any well known construction and need therefore not be parti-
cularly described, as this is a well known feature in illuminating apparatus in
which the combustible is fed to the burner by air pressure.
An open ended feed tube C projects into the fount nearly to its bottom and is
internally screw threaded at its upper end into which latter end is screwed the
lower end of the generator G.
As shown particularly in Fig. 3, the generator consists of a hollow cylindrical
body closed at its lower end and externally screw-threaded for a portion of its
length, so as to adapt it to be screwed into the upper end of the tube C and to

page_text: have screwed thereto the burner tube D. The generator G is further provided
with an external helical channel I which communicates at its lower end with a
cross channel i and at its upper end with the interior of the generator through a
notch or radial channel N, Figure 4.
The burner tube D is screw threaded internally at both ends to screw onto the
generator G, and to have screwed thereinto the burner nozzle or tip M constructed
in the form of a cap for and that seats on the upper end of the generator G. The
upper end of the burner tube D is expanded in the form of an inverted cone D'
which has a circular row of air ports K slightly above the burner orifice E, and in
the upper wider end or base of the cone is seated (preferably removably) a
spreader plate H that not only spreads the flame into a circular sheet, but also
forms the top of a combustion chamber, sufficient air being drawn into the same
through the porta K to produce an intensely hot flame. The whole of the conical
upper portion of the burner tube, as well as the burner, becomes highly heated,
and this heat is transmitted to the burner-tube surrounding the feed channel I,
and therethrough to the generator, so that the greater portion of the liquid fuel
supplied to the generator is vaporised before it reaches the generator chamber. F
through the inlet passage N.
It is obvious that with a self-generating burner constructed as described, an
explosion of the fount is not to be feared, as no vapour has access thereto, while
the back-fire through the tortuous channel I is practically impossible.
For the purpose of starting the burner we provide a cup O, for the reception
of alcohol or other readily inflammable liquid.
If it becomes necessary to cleanse the burner and generator, the burner tube D
is unscrewed from the feed tube C, together with the generator G, when the latter
can readily be unscrewed from the burner tube by means of a screw-driver in-
serted into the cross-notch i, thereby affording access to the interior of the gen-
erator and to its feed channel, as well as to the interior of the burner tip and its
jet aperture E, to which latter access is also had from the opposite enlarged end of
said burner tube after removal of the spreader plate H.
It is obvious that the vaporizable combustible liquid may be fed to the feed
tube C by gravity instead of air pressure.
Having now particularly described and ascertained the nature of our said in-
vention and in what manner. the same is to be performed we declare that what
we claim is;-
1. A self generating vapour burner apparatus comprising a liquid fuel feed pipe, a
burner tube carrying a burner, and a vapour generator interposed between and
in communication with said burner and feed pipe substantially as and for the
purpose set forth.
2. In a self generating vapour burner apparatus as firstly claimed a generator
fitting into the proximate ends of the burner and of the feed pipe and provided
with a helical groove communicating with the burner and the feed pipe substan-
tially as and for the purpose set forth.
3. The construction of chambered generator described and shewn.
4. The construction of burner tube with burner described and shewn.
5. A self generating vapour burner apparatus as firstly claimed in combination
with a liquid fuel reservoir or fount and with means for producing air pressure
therein substantially as and for the purpose set forth.
6. The combined self generating vapour burner and liquid fuel reservoir de-
scribed and shewn.