Improvements in Hydro-carbon Burners.
Year: 1894

page_text: Date of Application, 19th Jan., 1894-Accepted, 31st Mar., 1894
COMPLETE SPECIFICATION.
Improvements in Hydro-carbon Burners.
I, CARL RICHARD NYBERG, of Sundbyberg near Stockholm, in the Kingdom
of Sweden, Manufacturer, 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 :-
The present invention relates to hydro-carbon burners, for soldering lamps,
stoves etc., its object being to obviate the inconvenience common to burners as
hitherto constructed viz.: that the pipe or pipes surrounding the flame and in which
the hydro-carbon is volatilized cannot at all or only with great difficulty be cleaned
inside, the result of which is that the burners are generally used as long as possible
without being cleaned whereafter they must be changed for new ones. This
cleaning consists in removing the soot or black which is always deposited inside a
pipe when this is highly heated and hydro-carbon oil passes through it at the same
time.
A burner constructed according to this invention is shown on the accompanying
drawing in which
Figures 1 and 2 are elevations taken from different sides,
Figure 3 is a section taken on the line 3-3 of Figure 1, and
Figures 4 and 5 represent a modification, the former figure being an elevation
and the latter a plan.
The burner shown in Figures 1 2 and 3 is on the drawing represented as applied
on a soldering lamp but may also be used as a stove in the manner shown in
Figures 4 and 5.
A is the oil-tank or reservoir which is provided with the usual opening B for
filling it, an air-pump C and preferably also with a safety-valve. From the top of
the tank projects upwards a pipe D fixed to the same and extending almost down
to its bottom, which pipe is at its upper end provided with an ordinary_connecting-
nut or union E by means of which the burner is connected to the pipe D.
The burner shown in Figures 1, 2 and 3 consists preferably of four
pipes F, F', G, G', which are all slightly bent and connected in pairs at one
end and symmetrically placed around a shell H. The four pipes constitute thus
only two canals (which may however be formed of only two pipes) entering with
their ends into the common burner-head I which is screw-threaded in order to
admit of its being connected to the pipe D by means of the nut E. The burner
head is besides provided with two separate chambers l' and 'I' of which the
former I communicates directly with the pipe D on one side and with the
pipes F and G on the other side while the pipes F¹ and G' open into the chamber 12,
which also communicates with the nozzle I of the burner. The chamber I' is
provided with an aperture normally closed by means of a screw-plug 1. The
nozzle is located centrally with relation to the four pipes and the shell H between
the same.
The said pipes are brazed or otherwise suitably secured to the shell
which adjacent to the pipes or at other suitable places is provided with air-
holes H. Beneath the burner there is a little bowl K used for the lighting,
the burner being moreover enclosed by a protecting cover or frame L secured to
the tank A, said frame being enlarged at its fore end and provided with a hole,
through which the flame may pass.
The burner shown in Figures 4 and 5 is like the one before described excepting
that the shell H is removed and the two junctions between the pipes F F' and GG

page_text: are not formed by the ends of the pipes but by a cap M secured to the four pipes
and provided with two channels M' and M' of which the former M' is a continuation
of the pipe F to the pipe F' and the latter a continuation of the pipe G to the
pipe G. The four pipes are enclosed by a ring N. The underside of the cap can
be either as represented on the drawing or made somewhat conical with the point
or smaller end directed downwards.
It is evident that the number of the pipes may vary for burners of different size
and strength. Thus for instance from the chamber I only one pipe or three or
more may project, under which arrangement a like number of pipes will connect
with the chamber I' and the connection between each pair of the pipes at the outer
ends is the same.
When using the burner the hydro-carbon oil will by the pressure in the tank be
forced up through the pipe D and into the chamber 1, and thence part of it
continues through the pipes F and F', and the other part through the pipes G
and G' in order to enter into the chamber 12 and to pass thence through the
nozzle I at which it is ignited. The flame from the nozzle 1' passes through the
shell H and the hole in the protecting cover or frame L receiving the requisite
supply of air partly at the lower end of the shell and partly through the holes H¹.
During its passage through the shell, said shell as well as the four pipes in contact
with it are heated sufficiently to volatilize the hydro-carbon contained in the pipes.
In the burner shown in Figures 4 and 5, the passage of the hydro-carbon is the
same. From the burner-head I it passes partly through the pipe F, channel M'
and pipe F and partly through the pipe G, channel M and pipe G¹ in order to
return from both these routes into the burner bead and pass out through the
nozzle, I. The flame issuing herefrom directly heats the four pipes and the cap M,
by which the flame is divided and thrown out sideways but is however prevented
by the ring N from being spread too much.
The standards O shown in Figure 4 are such as may be used for supporting
cooking utensils or the like.
It will be easily understood that the burner before described can be cleaned
without difficulty. For this purpose it is only necessary to unscrew the burner
from the pipe D by means of the nut E and to take out the screw-plug I. Then
the two chambers 1 and 12 are accessible and from these the four pipes F F
and G G as well as the channels M' and M' in the burner shown in Figures 4
and 5.
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. In a hydro-carbon burner a burner-head such as I united with the pipe D
leading from the hydro-carbon tank or reservoir this burner-head being provided
with two chambers separated one from the other and accessible from without from
each of which chambers project one or more pipes such as F G and F'G' which at
their other ends are united in pairs so that the two chambers in the burner-head
communicate one with the other by means of different channels one of the chambers
also communicating with the pipe D projecting from the tank and the other with
the nozzle I substantially as and for the purpose described and illustrated in the
accompanying drawings.
2. In a hydro-carbon burner such as claimed in Claim 1 connecting the outer
ends of the pipes by means of a cap such as M secured to the ends of the pipes
and provided with channels such as M' M' communicating with the pipes so that
the chambers in the burner-head will communicate one with the other substantially
in the manner described and illustrated in Figures 4 and 5 of the accompanying
drawings.
3. The combination and arrangement of parts constituting the complete burner
substantially as described and illustrated in Figures 12 and 3 of the accompanying
drawings.

page_text: 4. The combination and arrangement of parts constituting the complete burner
substantially as described and illustrated in Figures 4 and 5 of the accompanying
drawings.
Dated this 19th day of January 1801
W. P. THOMPSON & BOULT,
Agents for the Applicant.