An Electric Vapourizer for Oil Engines,
Year: 1896

page_text: This Print is in accordance with the Original Specification as it stands after
Amendment (under Section 11 of the Patents, &c., Act, 1883), as required
by the decision of the Comptroller General of the 11th day of June 1897.
Date of Application, 22nd Feb., 1896
02nd Nov 100
2012 FL
2007
PROVISIONAL SPECIFICATION.
An Electric Vapourizer for Oil Engines,
We,. ERNEST JOHN CLUBBE and ALFRED WILLIAM SOUTHEY both of
16, Elm Street, Gray's Inn Road, in the County of Middlesex, Electrical Engineers,
do hereby declare the nature of this invention to be as follows:-
Our invention consists of an electric vapourizer for oil engines whereby to enable
the oil to be properly vapourized, without the use of a flame burner, both at
starting and throughout the running of the engine, a special object of the
vapourizer being to enable the engine to be started instantly whenever required.
The vapourizer is constructed of a thin copper tube of fine bore or terminating
in a fine aperture covered with an insulating material (preferably asbestos cloth)
around which is wound a spiral wire of low conductivity (such as platinum) which
is in turn covered with insulating material, the whole being enclosed in an outer
metal case which is screwed to the back end of the cylinder.
In operation the wire spiral is traversed and heated by a current of electricity,
the heat being transmitted to the copper tube through which the oil is pumped and
wherein the oil is vapourized by the heat transmitted to the tube. The vapour
thus generated passes on into the cylinder where it is mixed with a due proportion
of air and fired.
The current for heating the vapourizer is supplied at starting by an accumulator
and afterwards by a small dynamo worked by the engine, the connections being
automatically changed by a centrifugal commutator when the engine has acquired
its normal working speed.
A. M. & WM. CLARK,
53, Chancery Lane, London, Chartered Patent Agents.
COMPLETE SPECIFICATION (AMENDED).
An Electric Vapourizer for Oil Engines.
We, ERNEST JOHN CLUBBE and ALFRED WILLIAM SOUTHEY both of
16, Elm Street, Gray's Inn Road, in the County of Middlesex, Electrical Engineers,
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:-
Our invention consists of an improved construction of an electric vapourizer for
internal combustion engines.
The invention is illustrated in the accompanying drawings forming part of this

page_text: specification wherein Figure 1 is a longitudinal section, Figure 2 an elevation and
Figure 3 a cross section on the line 3-3 Figure 1 of the vapourizer drawn to an
enlarged scale.
The vapourizer comprises a tube of thin copper A of a length and of an internal
diameter depending on its required vapourizing capacity, said tube communicating
at one end with the chamber -B of the admission valve B₁ opening to the engine
cylinder and at the other end through a regulating valve C with the supply pipe 1)
through which the oil is pumped or otherwise fed. This tube A is wrapped in a
thin layer of asbestos cloth F or other suitable incombustible and non-conducting
substance surrounded by a platinum wire E in the form of an open spiral coil which
is in turn enclosed in a thick wrapping of asbestos cloth F¹, the inner and outer
wrappings F F1 serving to insulate the spiral wire and the thick outer wrapping Fi
preventing loss of heat by radiation outwards from the tube A. The whole is
contained in the casing H. The one end of the coil E is connected to an insulated
terminal G¹ and the other end is connected with a return wire g led through the
outer asbestos wrapping F and connected to the other insulated terminal G.
In the case where air is admitted with the oil to the vapourizer being drawn in
through apertures such as a by the suction stroke of the engine, the flow of oil is
sufficiently broken and the copper tube may be clear. If it is desired to give
greater heating surface, or in cases where no air is admitted through the vapourizer
itself, we prefer to introduce into the tube a bundle of fine wires or preferably
a spiral of copper wire c in traversing which the oil becomes sub-divided and
brought into contact with a large area of heating surface for the purpose of
effecting a rapid vapourization of the oil. The coil E being of low conductivity
becomes heated when traversed by a current of electricity and the heat is
transmitted to the tube A and its contents.
The vapour thus generated is mixed with a due proportion of air drawn into the
mixing chamber B (upon the engine piston making its outward movement) through
an aperture or apertures 6 of suitably proportioned area in the walls of the mixing
chamber. Or the air may be drawn in through suitably proportioned apertures a
opening into the vapourizer between the tube A and the oil regulating valve C as
above mentioned so that the oil will be broken up into spray and mixed with
the air before being brought into contact with the heated surfaces of the vapourizer.
By preference, however, we employ simultaneously both the methods of air
admission just described.
The vapouriser is represented as a single straight tube but where a large amount
of oil is to be vapourized it might comprise several such tubes each heated by a
coil as above described and the whole enclosed in one casing and supplied with oil
or oil and air through a common inlet. Or the vapourising tube instead of being
straight may be of spiral form.
The terminals G G¹ are connected with the source of electric current which
would be supplied at starting by an accumulator and afterwards if necessary by a
small dynamo driven by the engine, the connections being automatically changed
by a switch operated by the centrifugal action of a governor when the engine has
acquired its normal working speed.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
The electric oil vapourizer for internal combustion engines substantially as
described and as shewn in the drawings.
Dated this 23rd day of November 1806.
A. M. & WM. CLARK,
53, Chancery Lane, London, Chartered Patent Agents.