Improvements in or relating to Burners for Stoves and the like.
Year: 1896

page_text: Date of Application, 17th Aug., 1896-Accepted, 26th Sept., 1896
COMPLETE SPECIFICATION.
Improvements in or relating to Burners for Stoves and the like.
A communication from GUSTAV BARTHEL, of Kyffhäuserstrasse 27, Dresden-
Striesen, 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:-
The object of the present invention is a burner for beating and cooking apparatus
in which petroleum or other liquid hydrocarbon is vaporised or converted into gas,
this gas mixed with air being then burned in order to produce a blue flame of great
heating power.
The invention consists in forming the burner in two parts, which are not
connected with each other in order to lessen as much as possible the transmission
of beat from one part to the other. While the outer part-the casing-becomes
very hot aud transmits all the heat to its carrier with which it is in metallic
connection, as by brazing, the inner part which is placed loosely in the casing
becomes only slightly heated. The outer part of the burner having a large
surface and being strongly heated, while the temperature of the inner part is
considerably less, the liability of the firing back of the flames is lessened. For the
same purpose there is arranged in the hollow space of the annular inner part a
partition which reduces the space so that no expansion or decrease of pressure of
the entering gases takes place.
For obtaining a flame burning quietly and uniformly and for complete
utilization of the gradually increasing flame for the purpose of greater trans-
mission of heat to the vaporising chamber, the casing of the burner is continued
beyond the inner part in order to provide a large surface in contact with the
flame the temperature of which part rises together with the increasing heat of the
flame.
In the accompanying drawing the burner is shown in Figure 1 in elevation, in
Figure 2 in longitudinal section and Figure 3 shows detail views of some of tho
parts.
The burner is screwed on to the tank a containing the liquid to be burned, in the
usual manner. In order to start the barner, spirit or the like is poured into the
cup band lighted. The pipes cd and vaporising chamber e become heated and
heat is also transmitted to the petroleum tank a, part of the petroleum in the latter
is thus vaporised and its vapours rise through the pipes c d to the chamber e where
they are superheated or gasified. This gas escapes through the nozzle pipe ƒ and
is mixed with air and taken up by the pipe 9 and conducted into the hollow space
of the annular inner part h whence it escapes through passages in the annular
walls of the inner part hand of the casing k, and gives a blue flame. Tho metal
of the casing becoming very hot attracts the flame, and the upwardly curved part
of the carrier serves to guide the flames upwards. The hollow space in the
annular inner part A is so restricted by a partition n that its area corresponds to
the total area of the passages, through which the flame escapes, whereby a
reduced pressure causing a return of the flames, is avoided. The gasifying or
superbeating chamber e constituted by the walls of the carrier 7 and by the funnel
shaped bottom plate of the casing k, which is securely connected to said walla
becomes strongly heated by the said casing.

page_text: By the described arrangement, of the burner a quiet and uniformly burning
flame is obtained which can also be regulated without fear of ignition inside the
burnor.
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 consisting of two parts for use in heating and cooking apparatus in
which petroleum or other liquid hydrocarbon is gasified characterised by the
arrangement of a gasifying chamber directly connected to the supply tubes cd
and closed by the casing in which is placed loosely an annular inner part h
.having no metallic connection with the outer part so that the transmission of beat
from the strongly heated casing k to the inner part A is lessened or reduced.
2. In a buruer as characterised by Claim 1 the arrangement of a partition_n in
the annular inner part A which reduces the hollow space of the latter in accordance
with the total area of the outlet passages i.
3. In a burner as characterised under Claim 1 the arrangement of the casing k
as a continuation beyond the inner part & for obtaining a large surface in contact
with the flames and a correspondingly greater transmission of heat to the gasifying
-chumber e of the carrier corresponding to the increased size of the flame.
Dated this 17th day of August 1896.
BOULT & WADE,
Agents for the Applicant.