Improvements in Apparatus for Utilizing Liquid Hydrocarbons for Lighting and Heating.
Year: 1890

page_text: Date of Application. 29th Feb., 1890
Complete Specification Left, 28th Nov., 1890-Accepted, 10th Jan., 1891
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Utilizing Liquid Hydrocarbons for
Lighting and Heating.
I, HENRY HARRISON DOTY, of No. 11 Queen Victoria Street, in the County of
Middlesex, Lighting Engineer, do hereby declare the nature of this invention to be
as follows:-
This invention relates to apparatus for the utilization of petroleum and other liquid
hydrocarbons for the production of light and heat.
My said invention relates more particularly to apparatus of the kind or class
described in the Specifications of the following formner Letters Patent granted to
me viz. :-No. 8697 dated 16th June A.D. 1887, wherein liquid hydrocarbons are
employed for the production of lights of very great power for illuminating areas of
considerable extent, and for facilitating the carrying out by night of building
operations, military operations and for other purposes where powerful artificial
illumination is required. One object of my invention is to provide an apparatus of
which the parts shall be of simple construction and readily accessible for cleaning
purposes, and for repairs.
An important feature of my said invention consists in the construction of the
burner of my improved apparatus with an upper and a lower annular channel or
chamber connected with each other by a number of vertical tubes, the said troughs
or channels and the tubes being formed preferably of wrought iron or of any suitable
material. These annular troughs or channels are formed in such a manner that a
portion thereof can be removed with facility to permit of a rod brush or the like
being thrust into the vertical tubes for the purpose of thoroughly cleansing the said
tubes.
In carrying my said invention into practice I proceed as follows that is to say :—I
take two annular discs of wrought iron or other suitable material and secure between
the said discs a number of tubes of copper, brass or other suitable metal the ends of
the said tubes being inserted into holes perforated in the said annular discs and
secured therein by brazing or otherwise.
Two annular heads or covers of semi-circular or other convenient shape in transverse
section which are preferably provided with suitable flanges for the purpose are bolted
or otherwise secured to the said discs there being one cover for each of the two discs.
The said covers thus form annular chambers or channels with which the vertical tubes
communicate at the upper and lower extremities respectively the said tubes being
perpendicular and the said annular chambers horizontal when the device is in its
proper position. By removing the said heads or covers, access is obtained to the
vertical tubes to permit of cleansing the same when necessary. I find it advantageous
to secure around the outside of the tubes a metallic brass copper or iron jacket to
confine the heat within and around the tubes and to induce a current of air up
through the burner which now has only an open passage all the way up through its
centre. A tube for the supply of oil is inserted into an opening in the lower annular
channel or chamber, the said tube being connected with a cistern or reservoir for the
supply of oil; a corresponding tube is also inserted in the upper chamber or channel.
This tube passes down from its chamber outside the burner and is turned inwards
and upwards, being provided at its extremity with a nipple through which the
hydrocarbon gas or vapour on being generated in the tubes is forced. When ignited
this gas or vapor burns with great fierceness and produces a flame of great illumi-
nating power, no more illuminant being consumed within the burner than is required
to generate the gas, the remainder issuing from the opening in the centre of th
annular chamber or channel producing when igniting the illuminating flame.

page_text: The improved device stands on suitable legs or supports in a cup or pan preferably
about one inch below the said burner. This cup or pan is charged with asbestos or
other absorbent material and oil or spirit is poured thereon and into the cup, and on
being ignited produces sufficient heat to start the apparatus.
It is obvious that the construction of my improved device may be modified to a
certain extent without departing from the nature of my said invention.
Dated this 28th day of February 1890.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Apparatus for Utilizing Liquid Hydrocarbons for
Lighting and Heating.
J, HENRY HARRISON DOTY, of No. 11 Queen Victoria Street, in the County of
Middlesex Lighting 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 relates to apparatus for the utilization of petroleum and other liquid
hydrocarbons for the production of light and heat
My said invention relates more particularly to apparatus of the kind or class
described in the Specifications of the following former Letters Patent granted to me
viz.: No. 8697 dated 16th June A.D. 1887, wherein liquid hydrocarbons are employed
for the production of lights of very great power for illuminating areas of considerable
extent, and for facilitating the carrying out by night of building operations, military
operations and for other purposes where powerful artificial illumination is required.
One object of my invention is to provide an apparatus of which the parts shall be of
simple construction and readily accessible for the purpose of cleaning and repairing
the same.
An important feature of my said invention consists in the construction of the burner
of my improved apparatus with an upper and a lower annular chamber or trough
connected with each other by a number of vertical tubes, the said channels or troughs
and the tubes being formed of any suitable material preferably wrought iron. These
annular troughs or channels are formed in such a manner that a portion thereof can
be removed with facility to permit of a rod, brush or the like being thrust into the
vertical tubes for the purpose of thoroughly cleansing the said tubes.
In the accompanying drawings I have shown how my said invention may be con-
veniently and advantageously carried into practice.
Figure 1 is a plan of my improved apparatus a portion thereof being removed to
show the arrangement of the parts.
Figure 2 is a vertical central section thereof on the line xx Figure 1.
In carrying my said invention into practice I proceed as follows that is to say :- -I
take two annular discs A of wrought iron or other suitable material and secure
between the said discs a number of tubes B of copper, brass or other suitable metal the
ends of the said tubes being inserted into holes perforated in the said annular discs and
secured therein by brazing or otherwise.
Two annular heads or covers C of rectangular or other convenient shape in transverse
section and which are preferably provided with suitable flanges Care bolted to the
annular discs A by means of suitable bolts D passing through the said flanges or are
secured to the said discs in any other convenient manner there being one cover for
each of the two discs. Asbestos or other suitable packing material may if desired be
inserted between the flanges C₁ and the discs A. The said annular discs A and the
covers thus form annular chambers or channels with which the vertical tubes B
communicate at the upper and lower extremities respectively, said tubes being
perpendicular and the said annular chambers horizontal when the device is in its
proper position. By removing the said heads or covers, access is obtained to the

page_text: vertical tubes to permit of cleansing the same when necessary. I find it advantageous
to secure around the outside of the tubes a metallic brass, copper or iron jacket E to
confine and concentrate the heat within and around the tubes and to induce a current
of air up through the burner. A tube F for the supply of oil is inserted into an
opening in the lower annular channel or chamber, the said tube being connected with a
cistern or reservoir for the supply of oil. Another tube G passes down from the upper
chamber outside the burner and is turned inwards and upwards, being provided at its
extremity with a suitable nozzle H through which the hydrocarbon gas or vapour on
being generated in the tubes is forced. When ignited this gas or vapor burns
energetically and produces a flame of great illuminating power, the height of the
burner being so arranged that no more of the flame is confined within the burner than
is required to generate the gas, the remainder issuing from the opening in the centre
of the annular chamber or channel producing when igniting the illuminating flame.
The improved device stands on suitable legs or supports in a cup or pan I which is
situated as close as possible up towards the said burner. To effect the starting of the
apparatus the oil-supply through the pipe F is turned on till the oil fills the lower
annular chamber and rises about half way up the tubes B. The cup or pan
charged with asbestos or other suitable absorbent material and oil or spirit is poured
thereon and into the cup, which on being ignited produces sufficient heat to effect the
initial evaporation of the oil in the tubes. The upper annular chamber C thus becomes
charged with vapor which passes therefrom through the pipe G to the burner H where
it is ignited and produces the illuminating flame. The heat of this flame then serves
to keep up the evaporation of the oil without the necessity for the continued use of
the burning materials in the pan I.
is
The supply of oil through the pipe F is so regulated that the level of the same is
maintained at or about midway between the upper and lower extremities of the
tubes B.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, 1 declare that what I
claim is :-
First. An apparatus for the purpose above specified wherein an upper and a lower
annular chamber are connected with each other by tubes in which the liquid hydro-
carbon will be volatized, and from which the hydrocarbon vapour will pass into the
upper chamber and thence to a burner arranged within the space enclosed by the said
chambers and tubes.
Second. The improved apparatus constructed (with or without a fixed or removable
casing around the tubes) substantially as described with reference to the accompanying
drawing for the purpose above specified.
Dated this 98th day of November 1890.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, Agents for the Applicant.