Improvements in Oil and Gas Engines.
Year: 1896

page_text: Improvements in Oil and Gas Engines.
We, WILLIAM ALLEN of Tone Foundry, Taunton Somerset, Engineer, and
LAURENOE CHEOKLEY BARKER of Belmont, The Causeway, Staines, Middlesex,
Engineer do hereby declare the nature of this invention to be as follows:-
Our Invention relates to an apparatus for use in that class of oil engines where the
supply of oil used for being vapourised to form a component of the explosive gas
that is used in the cylinders of oil engines is drawn from below the level of the
vapouriser or vessel used for flashing the oil into gas.
The object of such apparatus is to keep the suction pipe of the pump more or
less completely charged with oil. We carry our Invention into practice in mauner
as follows-
One portion of the suction pipe is carried to the bottom of the oil tank and
at or near the bottom of the oil tank is bent and curved upwards through the
oil space in the tank to the highest level the oil would occupy in the oil tank.
At this point the suction pipe is again turned downwards until the end is at or
near the bottom of the oil tank. At the end of the pipe nearest the bottom of
the oil tank may or may not be fixed a back stop valve.
A further improvement in connection with oil and gas engines is the addition
of a chamber which will hereinafter be called the scavengering chamber which
communicates with the ignition tube and also with the port leading to the combustion
chamber the passage of gas through such port being regulated by the piston valve
desoribed in our Complete Specification No. 21315 and dated Nov. 9th 1895.
The object of suob scavengering chamber in connection with the ignition tube is
to greatly facilitate the removal of the gases resulting from the ignition of the
explosive gas in the ignition tube. This scavengering chamber may be of any
suitable shape, form or capacity.
W. M. LLEWELLIN, C.E.,
15 King Square, Bristol, Agent for Applicants.
COMPLETE SPECIFICATION.
Improvements in Oil and Gas Engines
We, WILLIAM ALLEN of Tone Engineering Works Taunton, Somerset, Engineer
and LAURENCE CHECKLEY BARKER late of Belmont The Causeway now of Cranleigh
House both at Staines, Middlesex, Engineer do hereby declare the nature of this
invention and in what mauner the same is to be performed, to be particularly
described and ascertained in and by the following statement:-
Our Invention relates to improvements in oil and gas engines and is a further
development of improvements in oil and gas engines specially applicable to that class

page_text: dated November 11-1895.
One improvement consists in the means we adopt for keeping the pipe through
which the supply of oil used for being vapourized is kept charged with oil.
Another improvement consists in the way we clear out the inert gases resulting
from an explosion from the ignition tube and adjoining parts.
In order that our invention may be more clearly understood we annex herewith
two sheets of drawings which are to be taken and read as part of theso presents.
Sheet. 1. Figures 1. 2. 3. 4. 5. show the scavengering chamber to which the tube
is attached.
Sheet 2. Figures 6. 7. show the method adopted for keeping the oil supply pipe
charged.
Figure 1. is a plan of the scavengering chamber.
Figure 2. is a section.
Figure 3 is a section of another form of scavengering chamber.
Figures 4: 5. are respectively front and side views of the other form of scavengering
chamber of which Figure 3 is the noction.
A is a flange attached by means of bolts or studs to a port leading to the
combustion chambers.
B is the aperture into which the ignition tube is fitted.
C is a space into which the inert gas is compressed and acts in the same manner
as an air spring or buffer-this space C may be either as shown in drawings or any
other suitable shape as long as a space is formed into which the inert gas can he
compressed to a certain extent the re-bound or release of pressure when the exhaust
is open tends to shoot out or clear the scavengering chamber and ignition tube of
inert gases resulting from an explosion in the combustion chamber.
Figures 3. 4. 5 show a modification of the shape of scavengering chamber in
which A is the aperture communicating with the port leading to the combustion
chamber B the opening which communicates with the ignition tube Da flange to
which is attached a corresponding flange in which the ignition tube is fixed and
which is attached to flange D by means of bolts or studs fitted in holes E. A" is
the flange for attaching to combustion tube.
Referring to Figures 6. 7. Sheet 2. A. B. is a tube coiled in one or more
coils of which the end B is attached to the pump or vapouriser C is a back stop
valve of any of the usual or well known forms.
It will thus he readily understood that a quantity of oil owing to the bent
arrangement of the pipe will always remain in one or more of the bends in the
coil and will thus be readily available for the first impulse of auction. The back
stop valve C tends to prevent any escape of oil not retained by the coil. It will
be readily understood that the pipe arrangement as shown in Figures 6. 7 are
suitably immersed in oil from which the supply to the vapourizer is drawn. It must
be clearly understood that we do not confine ourselves to a coil as described but any
method of forming pipes or their equivalents by which a certain amount of oil is
retained by reason of the form the pipe is made to assume will answer our purpose-
for example the pipe may be mado zig-zag or in the shape of a capital W.
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.
1. The making of a buffer space substantially as hereinbefore set forth and
'described in connection with the ignition tube and combustion chamber in gas or
oil engines.
2. The construction of a suitably enlarged space immediately in connection with
ignition tabe and combustion chamber in gas or oil engines as hereinbefore set
forth and described.
3. The method of using a coiled tube and back stop valve for oil suction purposes
in oil engines substantially as herein before set forth and described.

page_text: 4. The use of coiled tubes with or without a hack stop valve substantially for the
purpose hereinbefore set forth for oil suction purposes in oil engines.
5. The use of tubes or their equivalents so arranged that a certain amount of oil
tends to remain and keep such tubes or their equivalents charged when used for
suction purposes in oil engines.
Dated this 17th day of September 1897
W. M. LLEWELLIN, C.E.,
15 King Square, Bristol, Agent for Applicants.