Improvements in Oil Vapour Burners.
Year: 1891

page_text: COMPLETE SPECIFICATION.
[Communicated from abroad by Messrs. GRIMME, NATALIS & Co., of Brunswick,
Germany, Sewing Machine Manufacturers.]
Improvements in Oil Vapour Burners.
I, CHARLES BRADBURY, of 249, High Holborn, in the County of London, 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 oil vapour burners and has for its object to effect
automatic heating of the combustible supplied to the burner, so that the burner can
be used without difficulty in a cold atmosphere and that it can be rekindled a
considerable time after its extinction, without fresh heating of the burner being
required.
Figs. 1 and 2 of the accompanying drawings are vertical sections on planes at
right angles to each other, of a burner according to this invention, Fig. 3 is a part
section on XX of Fig. 2 looking from the right. A is a reservoir capable of holding
a considerable charge of oil with which it is supplied under pressure by a pipe
connected at K.
Within the reservoir A is a heating pipe coil S. The reservoir A communicates
at its top with an annular chamber B, behind which there is another annular
chamber C, communicating with B at its lower side by a passage D, and connected
with B at its top by a bracket E. From the upper part of the chamber Ca
passage F leads backwards and downwards to an annular chamber N surrounding
the nozzle which, as, shewn in section Fig. 4 is a tube laterally perforated and
terminating in a jet orifice. In the lower part of the chamber C and in the recess
where it communicates with the passage Dis situated the trumpet mouth of a pipe G
leading to the lower part of the coil S, and in the passage F leading from C to N is
situated the mouth of a pipe H leading from the upper part of the coil S.
The action of the burner is as follows. The parts above the reservoir A. and
especially the nozzle part N and the passage leading to it being previously
heated, oil, passing from A into the heated parts, becomes vaporised, and the
vapour issuing from the jet orifice of the nozzle is kindled. The flame heats the
chambers C and B to a high temperature so that the oil, which enters B gradually,
becomes rapidly vaporised passing along D to C where the vapour is highly heated
and whence it passes by F to the nozzle. A portion of the highly heated vapour
enters the trumpet mouth of the pipe G, passes through the coil S, and issues from
the pipe H in the passage F, the flow of this vapour being determined as indicated
by the arrows by the flow of the vapour in D towards G and of that in F away
from H. By the circulation of the heated vapour through the coil S the contents
of the reservoir A become heated, thus promoting the generation of the oil vapour
and, as the volume of heated oil in A is considerable, the heat is retained for some
time after extinction of the flame, sufficient to start the burner afresh.
The circulation in the coil S might be that of the whole of the heated oil vapour,
for which purpose a partition might be placed in the passage F, the pipe G leading
from the passage on the one side of the partition and the pipe H leading into the
passage at the other side of the partition.
Having now particularly described and ascertained the nature of this inven-
ion, and in what manner the same is to be performed, I claim :-
:―
In combination with an oil vapour burner, a pipe coil S in the oil reservoir through
which highly heated oil vapour is caused to circulate from a pipe G having a trumpet

page_text: mouth presented towards the current of vapour in its passage to the nozzle, to a
pipe H having its mouth opening in the direction of the flow of vapour to the nozzle,
substantially as and for the purpose set forth.
Deted this 3rd day of March 1891
ABEL & IMRAY,
Agents for the Applicant.