Improved Incandescent Petroleum-burner.
Year: 1895

page_text: Date of Application, 22nd July, 1895-Accepted, 24th Aug., 1895
COMPLETE SPECIFICATION.
Improved Incandescent Petroleum-burner.
I, HANS RINT, trading under the Firm of R. Ditmar of 23, 25, 27 Erdbergstrasse,
Vienna, in the Empire of Austria, Manufacturer, do hereby declare the nature of
my said invention and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement:-
All previous attempts to employ incandescent bodies in combination with
petroleum flames have generally failed because a lasting and constant Bunsen flame.
could not be obtained and, because, in a comparatively short time, carbon was
liberated and very soon deposited itself in the form of soot on the incandescent:
bodv.
The construction of my improved burner is such that the complete combustion of
the carbon is effected and a lasting Bunsen flame thus obtained. This is effected by.
the usual flame from the outside and top of the protruding end of the wick being
extinguished by an outer current of air, the remaining small flame at the inside of
the protruding end of the wick being then utilized for generating the petroleum
vapors and for igniting such vapors and the air mixed with same; a blue flame,
which impinges uniformly against and heats the incandescent body, is thus
produced.
According to my invention the regular and uniform generation of petroleum
vapors at the upper free end of the wick, as also the feeding of the small flame at
the top inner side of the wick and the generation of the combustible mixture of
vapor and air, producing a blue non-luminous flame, is secured by completely
separating the outer current of air from that entering through the inner wick-tube.
This inner current of air is caused to so collect or gather, by means of a conical
ring, flange or the like forming part of, or arranged at the thus narrowed upper end
of the inner wick tube and immediately below the free end of the wick, that
a whirling motion is imparted to the air immediately above such ring; such air is
just sufficient to maintain the small flame at the inner edge of the wick, whereas the
formation of a flame on the outside and top of the protruding wick is prevented by
the outer current of air being stronger than the somewhat obstructed inner current,
the free surface thus obtained being then wholly utilized for the generation of
petroleum vapor. The said inner current of air mixes uniformly with the outer
current and the petroleum vapors above the wick in such manner that the resulting
blue-flame impinging against the whole of the incandescent body extends in tubular
or utricular form. To render such action continuous, this improved burner is
constructed so that the course of neither the inner, nor the outer current of air is
deflected, seeing that if so deflected, the utricular flame would not be a blue-flame
throughout its entire extension i.e. carbon would be liberated. This latter effect is
attained by providing an outer hood open at top and a disc about in line with the
edge of the hood, an annular unobstructed opening thus resulting; through this
opening the inner and outer currents of air can pass freely and mix thoroughly with
the petroleum vapors, which together, when ignited, form the utricular blue-flame,
impinging uniformly against the incandescent body, without any soot being
present.
The accompanying drawing shows my improved burner in section.
0.1
The burner comprises the upper part A forming the gallery for the chimney C
and secured to the lower part B by fixing screws M', engaging in the grooved edge
of the part A. By simply releasing the screws M', therefore, the gallery A,

page_text: support Nsecured to the latter by screw M, the incandescent body Gʻand the
chimney C, may be readily removed for trimming the wick or cleaning the burner.
The lower part B, provided with apertures for admitting air, has also a cross
partition B fitting closely on the wick tube and thus forming a wall for separating
the current of air L' passing inside the inner wick tube D from the current L
entering through the apertures in the upper part A and above the partition B' and
impinging against the outer wick tube D. Fixed' to the removable upper part A
is a cap or hood R, whose top is cut out, and its edge S somewhat higher than the
wick. A disk E mounted on rod T like an ordinary flame spreader, is arranged so
that its upper edge is about in line with the edge S of the hood R; the edge of this
disk E is preferably cut away as shown, so as to cause the inner current of air L
to pass through the annular opening between the edge S and the disc E, and thus'
to thoroughly mix with the outer current of air. At the upper edge of the inner
wick tube D, it is preferable to provide a conical ring, flange or like protruding
part H for causing the inner current of air to so gather at the upper end of the
wick tube i.e. immediately round the inside of the protruding end of the wick, that
a whirling motion imparted to the air above the ring H which air just suffices to
feed or maintain the small flame; as already mentioned, the inner current of air
then passes through the annular opening between the edge S and the disc E and
thus mixes with the outer current of air L2 and the petroleum vapors. The
products of combustion or the carbonaceous components of the small flame at the
inner side of the wick are thus fed to the mixture of petroleum vapor and air by
the strong currents of air and thereby consumed; the carbon from the small flame
therefore cannot possibly deposit itself on the incandescent body.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed 1 declare that what I
claim is :-
1. An incandescent petroleum burner, whose construction is such that only
a small flame from the inner protruding end of the wick is produced and maintained,
the remaining parts of the said end of the wick being utilized for the generation of
petroleum vapors, which, after mixing with an inner and outer current of air, are
ignited by such small flame and impinge as blue flame uniformly against the whole
of the incandescent body, substantially as described and shown in the drawing.
2. An incandescent petroleum burner as set forth in Claim 1. comprising a wick-
tube (D) provided with obstructing ring or flange (H), a disk (E) mounted
on rod (T) and in line with edge (S) of hood (R) thus forming an annular aperture
for the mixture of vapor and air which after ignition, impinges against the
incandescent body (G), and a partition (B) for separating the currents of air (L',
and L²), substantially as described and shown in the drawing.
Dated this 22nd day of July 1895.
ALLISON BROS.,
Agents for the Applicant.