Improvements in or relating to Burners for Petroleum and other Hydrocarbons.
Year: 1898

page_text: Improvements in or relating to Burners for Petroleum and other
Hydrocarbons.
A communication from GUSTAV BARTHEL, of 27, Kyffhauserstrasse, Dresden, in the
Empire of Germany, Chemist.
I, ALFRED JULIUS BOULT, of 111, Hatton Garden, in the County of Middlesex,
Chartered Patent Agent, 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 a Bunsen burner more particularly destined for petroleum
and other slightly volatile hydrocarbons. The invention consists in the arrangement
of a solid metallic body containing a gasifying chamber, for the purpose of attaining
by means of the great mass of metal a strong heating of the body and consequently
a great transmission of heat to the gasifying chamber arranged under the flame or
burner proper.
The use of petroleum for Bunsen burners hitherto necessitated owing to petroleum
not being easily volatilised and owing to the great formation and deposit of lampblack,
the arrangement of a separate gasifying chamber as near as possible to the flame, the
vapours generated in the supply pipe had, therefore, to be conducted upwards in a
gasifier placed close to the flame, so as to be gasified there and to deposit lampblack,
the gas generated being supplied to the discharge nozzle through separate pipes from
the top downwards.
Such burners were not only expensive, but owing to their construction suffered
from the drawback that the gasifiers or the pipes leading to them soon became
clogged by the lampblack deposited in considerable quantities. To clean them was
impossible owing to their inaccessibility and the whole burner had to be
replaced.
In the burner according to the present invention the outlet opening for the gases
is arranged as near as possible to the flame, and the gasifying chamber, at the bottom
and formed by a chamber in the solid piece of metal becomes sufficiently heated by
said metal owing to the latter's great mass. The metallic body is provided with
holes or passages for the admission of air, which passages are of such size as to enable
a bent needle or rod to be introduced through them to the gas outlet openings
for the purpose of cleaning away any lampblack that might have been
deposited.
Owing to this arrangement of the gasifying chamber and the gas outlet opening
as near as possible to the hottest part of the burner, instead of the usual lampblack

page_text: deposit which easily becomes hardened, owing to the strong heating of said parts,
only dry lampblack is deposited in flakes which are partly carried away by the escaping
gas or can be easily removed.
The accompanying drawing illustrates by way of example a burner according to
the present invention with two horizontal air passages, in Figs. 1 and 2, Figs. 3
and 4 showing such a burner with several passages or openings of small cross section
in the solid metallic body.
The supply pipe a is tightly screwed or secured on to the reservoir containing the
combustible liquid. This pipe carries the starting cup 6 and the solid metallic
body c and communicates with the gasifying chamber d. The metallic body c is a
solid casting, preferably of gun-metal, of vase-shape and is provided with horizontal
air-passages e. The wall between the two chambers d and e is provided, in the centre
with a small hole i which forms the outlet for the gases generated into the upper
recess where they mingle with the incoming air and pass through the pipe f and
double walled cap 7 towards the outlet openings m. The flame, formed
this point is projected upwards by the circular flange h of the
metallic body.
at
Owing to the flame impinging against the flange h the metal of the body c
becomes strongly heated and as the gasifying chamber is placed as near as possible
to the flame, said chamber is very strongly heated by the heat transmitted all round
it by the metal. At the same time the air entering through the passages
e is strongly heated by the metallic mass SO that thus a hotter flame
is obtained.
The arrangement and construction of the burner enables it to be easily cleaned of
the sooty deposit, as, first, the outlet openings m can be cleaned whilst the lamp is
burning by means of a bent rod introduced from the side and the gasifying
chamber d is easily accessible through the supply pipe a after the burner has been
detached from the reservoir, and finally the gas-outlet opening i can be cleaned from
the top after removing the burner cap g.
The burner shown in Fig. 4 differs from the preceding by the flange h not being
formed in one piece with the metallic body, but being placed on it, resting on its
horizontal portion h¹ and if desired secured by soldering or otherwise. The metallic
body is moreover provided with projections or pins k adapted to pass through open-
ings in the part h¹ and serving to hold the part h on the metallic body and said
projections also becoming strongly heated by the flame and thereby producing a
greater transmission of heat to the metallic body.
Having now particularly described and ascertained the nature of the said inven-
tion as communicated to me by my foreign correspondent and in what manner
the same is to be performed, I declare that what I claim is :-
1. A burner for petroleum and other hydrocarbons comprising a solid metallic
body containing a gasifying chamber d below the burner, said metallic body being
provided with passages e in communication with the gasifying chamber, for admis-
sion of air and forming a mixing chamber for the air and
a flangen opposite the outlet holes
as described.
on
gas and
the burner cap, substantially
2. A burner for petroleum and other hydrocarbons comprising a solid metallic
body containing a gasifying chamber and air inlet passages, a central communicating
passage between the gasifying chamber and air inlet passages and an integral or
detachable flange h, a burner cap f with gas outlet perforations m substantially as
described.
3. A burner for petroleum and other hydrocarbons comprising a solid metallic
body containing a gasifying chamber and air inlet passages, and a detachable flange
and projections k in front of the gas outlet perforations in the burner cap, substan-
tially as described.
4. The combination and arrangement of parts constituting the complete

page_text: burner for petroleum and other hydrocarbons substantially as described or
illustrated in Fig. 1 or in Fig. 3 or in Fig. 4 of the accompanying
drawings.
1000
BOULT & WADE,
Agents for the Applicant.