Improvements in Gas Engines.
Year: 1899

page_text: PROVISIONAL SPECIFICATION.
Improvements in Gas Engines.
I, BENJAMIN WILLCOX, of 47, Lincoln's Inn Fields, in the County of London,
Patent Agent, do hereby declare the nature of this invention (which has been
communicated to me from abroad by A. Wolf, Junior, & Company, of 4, Bleich-
strasse, Frankfort-on-Main, in the German Empire) to be as follows:-
This invention has for its object to provide a gas engine of very great sim-
plicity without the necessity for the employment of either an eccentric or toothed
wheels the valve motion being independent of the fly-wheel shaft, the engine
operating in either in either direction, according as it is started.
Another rod
A motor constructed in accordance with this invention consists of a cylinder
open at the forward end in which cylinder moves the piston connected by the
connecting rod with the crank of the shaft carrying the fly wheel.
projects from the piston and earries by its crosshead a rod which carries a piece
upon which is mounted a hinged rod carrying a cone or catch connected thereto
by a centre pin and pressed by a spring against a stop.
When the piston moves toward the forward end of the cylinder the cone or catch
strikes against another cone or catch fixed to the outer end of the rod of the inlet
piston valve which is thereby displaced so as to allow the mixture of gas and
air to pass from the cylinder behind the piston.
As the piston further moves forward, a piece fixed to the aforesaid hinged rod
strikes against a stop on the cylinder thereby lifting the cone or catch carried by
the said hinged rod and releasing the cone or catch carried by the rod of
the inlet valve which is then returned by a spring and
SO
causes the
inlet valve to close the gas and air ports immediately before the piston passes
an opening in the cylinder. After the piston has passed the said opening the
mixture is ignited thereat, which may be done in the known manner; and drives
the piston forward. The ignition can for instance be effected by a flame being
drawn in through a valve on the inside of the opening. When the piston has
arrived at the end of its outer stroke, the rod operated by the piston strikes against
a projection on the rod of a piston valve which is thereby operated to allow the
products of combustion to escape during the return stroke of the piston. Shortly
before the return stroke has been completed, the said rod strikes against another
projection on the said valve rod thereby re-closing the exhaust opening, where-
upon a new eyele commences and so on during the operation of the engine.
By small secondary air-admission. valves, controlled by the inlet valve, or other-
wise, which open and close during the stroke of the inlet valve more or less
additional air can be admitted and the charge in the working cylinder be thus
modified.
1000

page_text: Improvements in Gas Engines.
I, BENJAMIN WILLCOX, of 47, Lincoln's Inn Fields, in the County of London,
Patent Agent, do hereby declare the nature of this invention (which has been
communicated to me from abroad by A. Wolf, Junior, & Company, of 4, Bleich-
strasse, Frankfort-on-Main, in the German Empire) and in what manner
the same is to be performed to be particularly described and ascertained in and
by the following statement:-
This invention has for its object to provide a gas engine, of very great sim-
piicity, without the necessity for the employment of either an eccentric or toothed
wheels the valve motion being independent of the fly-wheel shaft, the engine
operating in either direction according as it is started.
A motor constructed in accordance with this invention is illustrated in the
accompanying drawing in which, Figure 1 is a longitudinal section and Figure 2
a transverse section on the line A B Figure 1. Figure 3 shews the general outline
of the motor.
In the cylinder open at the forward end, moves the piston b connected by the
connecting rode with the crank of the shaft carrying the fly wheel D. Another
rode projects from the piston and carries by its cross-head of the rod which
carries the piece upon which at is hinged a rod carrying a cone or
catch and pressed by a spring against a stop. When the piston moves
from the position, represented in Figure 1, toward the other end of the cylinder,
the cone or catch strikes against another cone or catch i, fixed to the outer end
of the rod of the piston valve which is thereby displaced so as to allow the
mixture of gas and air to pass from the conduits 7 and m, to the cylinder a behind
the piston b. As the piston further moves forward, the piece Z, fixed to the rod h
strikes against a stop o on the cylinder thereby lifting the cone or catch h² and
releasing the cone or catch i, which is then returned by the spring and so
causes the valve to close the gas and air ports immediately before the piston passes
the opening in the cylinder. After the piston has passed the opening the
mixture is ignited, which may be done in the known manner, and drives the piston
forward. The ignition is shewn as being effected by a flame being drawn in
through a valve on the inside of the opening y as shewn in Figure 2. When the
piston has arrived at the end of its outer stroke, the rod r. strikes against the
projections on the rod t of the piston valve which is thereby operated to allow
the products of combustion to escape during the return stroke of the piston.
Shortly before the return stroke has been completed, the rod r strikes against
another projection & on the valve rod t, thereby re-closing the exhaust opening,
whereupon a new cycle commences and so on during the operation of the engine.
By small secondary air-admission valves, controlled by the piston valve k, or
otherwise, which open and close during the stroke of the piston valve k, more
or less additional air can be admitted and the charge in the working cylinder be
thus modified.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed I declare that what
I claim is
In gas engines a projection carried by the piston which during its out stroke
causes a hinged cone or catch to engage with a second cone or catch on the rod of
the inlet valve whereby the said valve is opened against the action of a spring
and is kept open, until a stop mounted on the cylinder releases the cones or catches

page_text: from engagement and allows the inlet valve to close and thereafter the said projec-
tion acts on the exhaust valve rod whereby the exhaust valve is opened and kept
open until at the end of the back stroke of the piston, the said projection acts on
the exhaust valve rod to close the exhaust valve all substantially as hereinbefore
described and illustrated by the accompanying drawing.
Dated this 3rd day of January 1900.
JOHNSONS & WILLCOX,
47, Lincoln's Inn Fields, London, W.C., Agents.