Improved Apparatus for Burning Liquid Fuel for Heating Purposes.
Year: 1898

page_text: Date of Application, 1st Dec., 1898
Complete Specification Left, 1st Sept., 1899-Accepted, 7th Oct., 1899
PROVISIONAL SPECIFICATION.
Improved Apparatus for Burning Liquid Fuel for Heating Purposes.
We, CHARLES HARRY FISHER, of 44, Stonehill Road, Gunnersbury, London,
W., Engineer, and FRED MAY, of 41, Dover Street, Piccadilly, London, W.,
Salmon Salesman, do hereby declare the nature of this invention to be as
follows:
This invention relates to improved apparatus for vapourizing and consuming
liquid fuel for heating steam boiler and other furnaces and for heating purposes
generally.
The invention relates particularly to the construction of the vapourizer and
its burner and to the combination therewith of a pilot burner and an auxiliary
vapourizer for the independent supply of vapour to the pilot burner for the
purpose of maintaining the main vapourizer at a sufficiently high temperature
when the main burner is out of use, to enable it to be re-started in operation
at any moment.
The main vapourizer is of horizontal disc or plate like form and is traversed by
a tortuous or extended channel for the oil and vapour, the area of the channel
being progressively increased as the oil in travelling through it becomes con-
verted into vapour.
The preferred form of this channel is a flat spiral, the
supply pipe connected with the supply of oil under pressure being connected
with the outer end of the channel and the pipe leading to the burner being
connected to the inner end of the channel at about the middle of the underside
of the vaporizer.
It will be obvious that instead of the channel being of spiral form it may be of
zigzag or other tortuous form giving the required length of traverse to effect
the vapourization of the oil. The vapourizer is in any case formed by preference
of a plate cast with the channel of the required form in its upper face and
closed by a cover plate bolted thereon with an intermediate packing sheet of
asbestos to make a tight joint between the different members of the channel.
The pilot burner is situated below the main vapourizer and is supplied with
vapour through an auxiliary vapourizer formed of a thin coiled tube in proximity
to, or above, the pilot flame so as to be heated thereby and connected with a
bye-pass pipe branched on to the main oil supply pipe. The main burner is
carried at the lower end of the pipe which projects downwards from the middle
of the main vapourizer, the burner being formed by radial orifices around the
lower closed end of said pipe from whence the flames are projected against the
heating surface of the vapourizer and thence into contact with the heating
surface of the boiler or other apparatus. to be heated, the whole being enclosed
in a furnace chamber of any suitable kind.
T
1000
A. M. & WM. CLARK,
Chartered Patent Agents, 53, Chancery Lane, London.

page_text: Improved Apparatus for burning qu
We, CHARLES HARRY FISHER, of 44, Stonehill Road, Gunnersbury, London,
W., Engineer, and FRED MAY, of 41, Dover Street, Piccadilly, London, W.,
Salmon Salesman, 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 improved apparatus for vapourizing and consuming
liquid fuel for heating steam boiler and other furnaces and for heating purposes
generally.
In accordance with our invention we construct the apparatus in the form of a
flat chamber into which is introduced the liquid fuel to be burnt and through
which it passes by a tortuous or extended channel of which the transverse section
increases, progressively, as the oil in travelling through it becomes converted into
vapour. The vapourized liquid passes thence into a burner having lateral
orifices through which the vapour is projected in jets which are ignited in the
ordinary manner. We also combine with the vapourizer a pilot burner and an
auxiliary vapourizer for the independent supply of vapour to the pilot burner
for the purpose of maintaining the vapourizer at a sufficiently high temperature
when the main burner is out of use to enable it to be restarted in operation at
any moment, or a cup for containing alcohol may be employed for the preliminary
heating of the liquid fuel.
In the accompanying drawing Figure 1 is a vertical section of the apparatus,
and Figure 2 is a plan, with the cover removed.
a is a horizontal disc or plate forming the body of the apparatus and 6 the
cover which is bolted to the body a by means of bolts and nuts 6', a layer of
asbestos or other suitable packing material 62 being disposed between the con-
tiguous surfaces of the body a and cover 6 to form a tight joint. A continuous
channel of tortuous form c, which in the present case is represented as in the
form of a flattened spiral, is formed in the interior of the vaporizer by means
of partitions or compartments d, the upper surfaces of which are on a level with
the external edges of the body a so that when the cover is placed in position,
as shewn in Figure 1, a tortuous or sinuous channel is formed for the oil which
is introduced at the end of the said channel by a pipe e, the area of the channel c
being gradually increased as the oil in travelling through it becomes converted
into vapour. The inner extremity of the channel c is provided with an outlet
orifice to which is fixed the burner g having lateral orifices h through which
the vapour is expelled in jets. The cover b of the vaporizer is formed with a
screw-threaded socket 63 by means of which the apparatus may be suspended
in a boiler furnace or other desired situation, and the burner has fixed to it a
ring to which may be suspended a cup or other holder for containing alcohol
which may be used for heating the vaporizer at starting. Or the vaporizer may
be maintained at a sufficiently high temperature by means of a pilot burner
situated below the vaporizer and supplied with vapour through an auxiliary
vaporizer formed of a thin coiled tube in proximity to or above the pilot flame
so as to be heated thereby and connected with a by-pass pipe branched on to
the main coil supply pipe.
It will be obvious that instead of the channel having a spiral form it may
be of zig-zag or other tortuous form giving the required length of traverse for
the vaporization of the oil.

page_text: Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed we declare that
what we claim is:-
1. The herein described apparatus for burning liquid fuel for heating purposes
comprising a flat chamber having a tortuous or sinuous channel of gradually
increasing area into which is forced the liquid fuel and an exit orifice leading
to the burner substantially as shewn and described.
2. The combination and arrangement of parts forming the improved apparatus
for burning liquid fuel for heating purposes, as herein before described and illus-
trated in the drawing.
1000
Jatt CHI
A. M. & WM. CLARK,
Chartered Patent Agents, 53, Chancery Lane, London.