Year: 1899

page_text: PROVISIONAL SPECIFICATION.
An Oil Engine.
JOHN WILLIAM HINCHLEY, 15, Fawcett Street, London, S.W., Engineer, do
hereby declare the nature of this invention to be as follows:-
Two cylinders are placed opposite each other, their open ends adjacent, their
axes in the same straight line, and provided with pistons acting by means of
connecting rods on two cranks, placed between the cylinders; on each crank-
shaft is fixed a spur wheel, each gearing into a single larger spur wheel carried
by another shaft, the power shaft, from which the power is taken, and the
valve and ignition gear worked.
The relative position of the cranks to each other is such that the piston come
to rest at the closed or at the open ends of the cylinders at the same instant, and,
when in motion move always in opposite directions. The cranks and gears are
all contained in a closed chamber to which the cylinders are bolted at their
open ends, and which carries the bearings of the different shafts. One long
bearing only being provided for each crank-shaft, a flywheel being fixed at the
end opposite the crank.
E
Above the crank chamber is mounted a single valve chest, containing the
exhaust and induction valves (one of each) and the ignition plug or tube, which
communicates by means of a tube, (which also provides the compression space
for the cylinders), to the closed end of each cylinder. The tubes and cylinders
are provided with gills for air cooling or water-jackets for water cooling.
The exhaust valve is driven by a cam on the power shaft, and the usual lever
and roller; this lever also actuates a small pump to squirt the quantity of oil
required per stroke into a chamber of a capacity equal to or greater than the
volume swept out by the pistons; in this chamber the oil vapour is mixed with
air to be drawn into the cylinders and exploded on the next stroke.
Dated this 25th day of September 1899.
J. W. HINCHLEY.
I, JOHN WILLIAM HINCHLEY, 15, Fawcett Street, London, S.W., Consulting
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:-
The moving parts of this engine are so devised that they balance each other,
and the explosions take place so that the motor is free from shock.

page_text: Fig. 1 is a front elevation and section; Fig. 2 is a side sectional elevation
on X X and Fig. 3 is a plan of the engine. Figs. 4 and 5 show a convenient
means of forming the explosive mixture.
The cylinders two in number, A A of the engine, are placed opposite each
other, with their axes in the same straight line, and provided with pistons B B,
acting by means of connecting rods CC, on two cranks 1) 1), placed between
the cylinders; on each crankshaft is fixed a spur wheel E (shown by its pitch
cylinder) driving another shaft F, through the larger spur wheel G, from which
the power is taken, and by which the exhaust valve and ignition gear may be
worked.
The relative position of the cranks to each other is such that the pistons come
to rest at the closed or open ends of the cylinders at the same instant, and when
in motion move always in opposite directions with the same acceleration. The
cranks D D, and gears E E and G. are all contained in a closed chamber H,
to which the cylinders are bolted at their open ends, and which carries the
bearings of the shafts I J F, one long bearing for each crankshaft I J, a fly-
wheel being fixed at the end opposite the crank. On the crank chamber is
mounted a single valve chest L containing the exhaust M and eduction N
valves (one of each) and the ignition plug (the opening for which is shown at O)
which communicates by means of tubes P P with the closed end of each cylinder.
The tubes, valve chest, and cylinders may be provided with cooling gills or
water jackets. The carburetter Q, shown in Figs. 4 and 5 may be mounted
near the valve chest on the crank chamber, and should have a capacity of at least
that of the two cylinders, and may be of any type. The convenient type shown
has a gauze cone R and a conical tube S, so that the jet of petroleum spirit oil
or vapour delivered by the pump T (Figs. 1 and 3) through the tube U is mixed
perfectly with the incoming air, and the explosive mixture drawn through the
inlet Vinto the valve chest L. The exhaust valve M and pump T are actuated
by the cam Y by means of the lever and roller Z.
The ignition cam for determining the time of ignition is shown diagram-
matically at W (Fig. 2) and may be of any suitable form.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is
(1) A motor for oil, spirit, or vapour in which the moving parts are balanced
as described, and in which a single valve chest, containing one exhaust and one
eduction valve serves for the two cylinders, and is connected with the said
cylinders by tubes substantially as described.
(2) A motor for oil, spirit or vapour in which the moving parts are balanced as
described, the gearing being placed near the cranks, one flywheel on each crank-
shaft, and a single long bearing being used for each crankshaft, and in which
a single valve chest serves for the two cylinders and is connected with the said
cylinders by tubes substantially as described.
Dated this 18th day of June 1900