Improvements in or connected with Vapour Burners for Lighting and Heating.
Year: 1896

page_text: Date of Application, 16th Jan., 1896
Complete Specification Left, 14th Aug., 1396-Accepted, 17th Oct., 1896
PROVISIONAL SPECIFICATION.
Improvements in or connected with Vapour Burners for Lighting
and Heating.
I, FRANCIS KNOEFERL Engineer of 100 Bolsover Street in the County of
London do hereby declare the nature of this invention to be as follows:-
This invention consists in the use of petroleum oil vapour, ignited in such a way
as to produce a flame like that of a Bunsen gas burner to cause an incombustible
material such as platinum or gold, alkaline earths, such as oxides of calcium,
magnesium, yttria, cerium, lanthanum, thorium and other suitable materials to glow
and emit light. In order to obtain a suitable flame, the petroleum oil vapour may
be burnt in any suitable burner such as that described in Patents No. 19482/92 and
No. 9819/94, but I prefer a burner constructed as described below.
This burner consists of a tube in which the petroleum is vaporised, a second tube
brazed on to this and leading down to a jet from which the vapour issues, a tube inside
the first conducting the oil into the end or nearly to the end of the tube farthest from
the point at which the second tube is brazed on, an arm or projection on each side
of the vaporising tube, which may or may not form a part of it, a jet from which
the vapour issues, a shield around the burner to confine the heat and direct it by
its form and construction to any desired point, stops of various forms for the same
purpose within the shield, and for the sake of symmetry, and also for the purpose
of better disposition of the flame within the shield another tube brazed on to the
vaporising tube or to the second tube or to both, and forming with the two other
tubes a triangle with the jet in one of the internal angles.
The petroleum oil to be vaporised is conducted from a tank or forced into the
small internal tube, which having been previously heated with the rest of the
burner, vaporises the oil and this action is continued to a higher degree and
the vapour further rarefied as it passes through the tubes to the jet. The vapour.
is there ignited and the flame impinging on the vaporising tube keeps up
the heat.
The burner above described is by no means confined to the purpose of producing
light, but is also applicable for all kinds of heating.
In making the jets from which the vapour issues, I may use plates of nickel or
other incorrodible material attached to the tube by a screw cap so as to readily
attached and removed for cleaning or for renewing.
The whole burner with the exception of the jet may be formed more or less by
casting.
Dated this 16th day of January 1896.
FRANCIS KNOEFERL,
100 Bolsover Street, London, W.

page_text: COMPLETE SPECIFICATION.
Improvements in or connected with Vapour Burners for Lighting
and Heating.
I FRANCIS KNOEFERL of No. 100 Bolsover Street London W. Engineer 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 consists in the use of petroleum oil vapour ignited in such a way
as to produce a flame like. that of a "Bunsen" gas burner, and to cause an
incombustible material such as platinum or gold, alkaline earths such as oxides of
calcium, magnesium, yttria, cerium, lanthanum, thorium, and other suitable
materials, to glow and emit light. In order to obtain a suitable flame, the petroleum
oil vapour may be burnt in any suitable burner such as that described in Patent
No. 19482/92 or No. 9819/94, but I prefer a burner constructed as described below
and by the accompanying drawings, Fig. 1. side view, Fig. 2 end view Fig. 3.
section-lettered alike. This burner consists of a tube A in which the petroleum
oil is vaporized, a. second tube B connected with this and leading down to a jet C
from which the vapour. issues, a tube D fixed at one end inside the first tube A
conducting the oil to, or nearly to the end thereof farthest from the point at which
the tube B is connected thereto as described, a support E for the incandescent
material, an arm or projection F on each side of the vaporizing tube A which may
or may not form part of it, a jet C from which the vapour issues, a shield G around
the burner, to confine the heat and direct it by its form and construction to any
desired point, stops of various forms for the same purpose within the shield G,
another tube or arm H, connected with the tube A, or with the tube B, or with
both, and forming with them a triangle. The petroleum oil to be vaporized is
conducted from a tauk, or forced, into the small internal tube D which having been
previously heated with the rest of the burner, by ignition of a small quantity of
spirit in a cup J, which vaporizes the oil, this action is continued to a higher
degree, and the vapour further rarefied, as it passes through the tubes A and B, to
the jet C, where the vapour is ignited, and the flame impinging on the vaporizing
tube A, keeps up the heat.
The burner above described is by no means confined to the purpose of producing
light, but is also applicable for all kinds of heating, either vertically or horizontally
as a blow-pipe for instance. In making the jet C from which the vapour issues,
I may use a plate of nickel, or other incorrodible material, attached to the tube B
by a screw cap, so as to be readily detached for cleaning or renewing. The burner
with the exception of the jet C, may be formed more or less by casting.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim, is,―
First. In a burner operating by vaporization of petroleum either for incandescent
lighting or for heating, the construction thereof consisting of a small tube (D)
within a larger, tube-(A). communicating with a jet (C).
Second. The improved vapour burner as herein before described with reference
to the accompanying drawings.
Dated this 13th day of Annet 1000
FRANCIS KNOEFERL.