Improvements in Hydrocarbon and Petroleum Engines.
Year: 1896

page_text: Date of Application, 16th Jan., 1896
Complete Specification Left, 16th Oct., 1896-Accepted, 28th Nov., 1896
PROVISIONAL SPECIFICATION.
Improvements in Hydrocarbon and Petroleum Engines.
I, THOMAS WILLIAM, BEVERLEY of 50 Vernon Street, Lincoln, in the County
of Lincoln Engineer, do hereby declare the nature of my invention to be as
follows:-
My invention relates more particularly to an engine designed to consume the
ordinary paraffin oil of commerce, and to run at a high speed, and the object in
the first place is to obtain a more perfect balance of the principal moving parts
without the use of balance weights, which whether made solid with, or attached to
the part to be balanced, are generally unsatisfactory.
In the second place my invention relates to the arrangement of the oil-feed
device, by which the engine is enabled to work with ordinary coal gas, or paraffin
oil, without any alteration except what can be effected while the engine is running.
In carrying out my invention relating to the more perfect balancing of various
parts, I employ a cylinder open at both ends and without any mid-partition, fitted
with two pistons which work in opposite directions, that is towards and from each
other, but so far this arrangement forms no part of my invention. The explosion
takes place between the two pistons as will be understood.
Each piston has a connecting rod which is pinjointed to a vertical rocking lever.
at its upper end by preference, the lower end being similarly jointed to the engine
frame and forming the fulcrum.
At some prearranged position upon the rocking lever I attach a second connecting
rod, its opposite end being connected with a crank upon the flywheel shaft; half the
weight of the said rod being carried by the crank and half by the rocking lever.
It will therefore be understood that the mechanism attached to one piston is a
facsimile of the other.
The crank shaft has a double crank, one being exactly opposite the other and a
facsimile of it.
In carrying out the second part of my said invention relating to the oil-feed and
to the method of regulating its admission from the supply to the vaporising passage
or chamber, I construct a spindle, preferably of round cross section, and of two
diameters, the junction of the two being of a conical configuration of any angle.
The smaller end passes through the side of the air passage (to the cylinder,).
into the oil supply having more or less clearance or slackness of fit, in the hole
through which it works according to the size of the engine, or other causes.
The larger end passes through to the outside and is connected by intermediate
mechanism with. tho. governors.
When the conical part of the spindle is drawn from its seat, the loose fit of the
spindle permits the passage of a fine film of oil to pass through and to be dispersed.
by the cone, materially aiding its rapid vaporisation, and enabling each particle to
take up its proper proportion. of air on being drawn into the cylinder, and thus
prepares a rich and uniform charge.
The regulation of the quantity of oil passed is controlled by the amount of travel
given to the spindle, and this is varied while the engine is running to the greatest
nicety, or it can be stopped entirely by the action of the governors.
If the engine is connected with both a gas and an oil supply, the oil can be

page_text: cut off at once by stopping the spindle, and by turning on the gas the engine will
continue to run, and vice versa.
Dated the 13th day of January 1896.
ROBT. F. DRURY, C.P.A.,
Bank Buildings, George Street, Sheffield, Agent for Applicant.
Improvements in Hydrocarbon and Petroleum Engines.
I, THOMAS WILLIAM BEVERLEY of 50 Vernon Street, Lincoln, in the County
of Lincoln, Engineer, do hereby declare the nature of this invention and in what
manner the same has to be performed, to be particularly described and ascertained in
and by the following statement :-
My invention relates to improvements in internal-combustion engines, and
particularly to the construction of engines designed to consume the ordinary
paraffin oil of commerce and to run at a high speed, the object being to obtain
a more perfect balance of the principal moving parts without the use of balance
weights which are found to be unsatisfactory.
My invention is illustrated in the annexed sheet of drawings, in which
Fig. 1, is an elevation of an engine constructed according to my invention, with
details not relating to the invention omitted.
Fig. 2, section of oil supply tank, showing the construction of valve.
In carrying my invention into practice so far as relates to the more perfect
balancing of the moving parts, I employ a cylinder A which is open at both ends
and is without a mid-partition, fitted with two pistons which move in opposite
directions, that is, towards and from each other but so far the arrangement described
is not novel and I do not therefore claim it.
The explosion as will be understood takes place between the two pistons, and
the pressure therefrom is equally divided between them.
Each piston has a connecting rod or piston rod B, which is pinjointed to a vertical
rocking shaft or lever C, at its upper end by preference, the lower end being
similarly jointed to the engine frame D, and forming the fulcrum C³.
At some pre-arranged position upon each rocking lever C, I joint a second
connecting rod E, its opposite end being connected with one of the cranks upon
the flywheel shaft F; half the weight of the said rod being carried by the crank
and half by the rocking lever C.
It must be understood that the mechanism attached to one piston is a facsimile
of the other, and that the flywheel shaft has a double crank, one crank being
exactly opposite the other.
The admission of oil from its supply tank and the method of regulating its supply
to the vaporising chamber, is by means of a valve constructed as follows, and is
shown in Fig. 2.
I make a valve spindle G, preferably of round configuration in its cross section,
and of two diameters, the collar or shoulder formed at the junction being of conical
configuration.
The smaller end G3, passes through the side of the air passage H, (to the cylinder)
into the oil supply vessel I, and is made to fit with a degree of looseness that will
permit the escape of a small quantity of oil between the two.
This annular passage varies according to the size of the engine, and the quality
of the oil.
The larger end of the spindle passes through the opposite side of the air passage H,
and is connected by intermediate mechanism with the governors.
When the conical shoulder or face of the valve is withdrawn from its conical

page_text: seat the slack fit of the part G³, permits the passage of a film of oil which is spread
from the conical shoulder into the air passage, and this materially assists its rapid.
vaporisation, and enables each particle to take up its proper proportion of air as it.
is drawn into the cylinder, thus forming a rich and uniform charge.
The quantity of oil passed through the valve is regulated by the length of travel
given to the spindle, and this is controlled by the action of the governors, and can
be varied to the greatest nicety, or can be cut off altogether by mechanism already
in use which forms no part of my invention.
Having now particularly described and ascertained the nature of my inven
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. In an internal-combustion engine having a cylinder open at both ends and
fitted with two pistons, the arrangement at each end of the cylinder of a vertical
lever C, connected at its upper end to the piston rod B, and pinjointed at its lower
end to the engine base to form a fulcrum, and midway between (or thereabouts)
being similarly pinjointed to a connecting rod attached to one throw of a double
crank on the flywheel shaft as herein before described and shown.
2. In combination with internal-combustion engines, an oil feed valve constructed
and operating substantially as hereinbefore described and shown.
Dated the 14th day of October 1896
ROBT. F. DRURY, C.P.A.,
Bank Buildings, George Street, Sheffield, Agent for Applicant.