Improvements in and relating to Gas and Petroleum Engines.
Year: 1892

page_text: Date of Application, 23rd Mar., 1892
Complete Specification Left. 23rd Dec., 1892-Accepted, 11th Feb., 1893
PROVISIONAL SPECIFICATION.
Improvements in and relating to Gas and Petroleum Engines.
1, PIERRE BILBAULT, of 40 Rue des Alouettes, Paris, in the Republic of
France, Engineer, do hereby declare the nature of this invention to be as
follows:-
My improved engine which forms the subject of this invention operates by means
of air and gas or petroleum or any other mixture exploding at a certain pressure,
and it has two phases, that is to say it gives an impulsion in every revolution of the
crank. It possesses two fly wheels.
The cylinder may at will be cast in one piece with the frame or made
separately.
On the cylinder are arranged a compression chamber with ribs, an escape box
with its flap valve, an admission slide valve, and an igniting device which acts by
means of a heated platinum wire.
I place a slide valve at the front part of the engine cylinder in a box, the said
valve being actuated by an eccentric and serving to regulate the supply to the
engine. By reason of the arrangement of its apertures the said slide valve permits
the passage of air and gas to the front part of the cylinder, which has at this
end a stuffing box. The engine piston performs the part of a pump.
When
it moves to the rear, four apertures in the aforesaid slide valve are opened and
allow the passage of the air and gas in order to be forced, during the forward
movement, through three apertures into a supply reservoir provided in the
frame of the engine.
When the piston arrives at the end of its forward stroke
two of the said apertures are closed and two others are opened for allowing
the passage of the mixture which is at a certain pressure in the supply reservoir
into the cylinder at the rear of the piston. At this moment, the escape being
open, the mixture passes easily into the engine cylinder whereupon the escape
is immediately closed by means of a small Hap valve actuated by an eccentric.
As the engine piston continues its backward movement it compresses the
mixture, and the small platinum wire being heated ignites it, which causes the
motion of the engine.
My improved igniting device comprises a small platinum wire heated by a blow
pipe supplied by the explosive mixture coming from the above-mentioned supply
reservoir and passing through a small indiarubber pocket for keeping it at a certain
pressure, or else by a gas obtained independently of the engine.
This igniting device is arranged on the rear part in a cavity so that there shall
always be a burnt mixture.
When the compression takes place the explosive mixture forces away the burnt
gas and heats the wire which causes the ignition.
I may employ an igniting of different construction, operating either by means of
an electric spark or a flame.
The cooling of the cylinder is effected by a circulation of water in a jacket. This
water is admitted through a pipe placed below the cylinder and leaves through a
second pipe placed upon the said cylinder. The cylinder may also be cooled without
the use of water by means of a series of ribs similar to those on the rear part of the
cylinder which has no circulation of water.
This engine is provided with a governor having balls adapted to roll between two
cones. As these balls move away from the centre they displace the upper cone
which rises. The lower cup has a round part which serves as a ring and which is
fixed to a sleeve at the extremity of which is attached a ring for keeping this
sleeve upon the support of the governor.

page_text: I also fix upon this sleeve a pulley operated by a cord or belt. The aforesaid
upper cone is connected with a small rod which traverses the sleeve of the former
and to which is fitted a spring the tension of which is regulated by a nut with the
object of enabling the velocity of the engine to be varied. This mechanism
operates a device which is designed to control the admission of the gas, and
comprises a small cylindrical plug having a conical part in the middle. At the
lower part of this plug is placed a small spring which always bears against the
above-mentioned rod set in motion by the balls.
This improved engine can be worked with ordinary gas or with air carburetted
by means of petroleum. In the latter case the gas admission pipe is branched off
from the upper part of a carburetter composed of a cylindrical body provided with
a false bottom of wire gauze or perforated sheet metal below which is placed a
petroleum vessel. The portion below the perforated bottom is in communication
through a tube with the atmosphere. Through this tube enters atmospheric air
which takes its way through the petroleum and escapes through the holes in the
false bottom in order to pass into the said cylinder and to escape through the
admission pipe. By the side of the carburetter cylinder is a reservoir closed by a
perforated cover, which reservoir contains a supply of petroleum which descends
drop by drop in proportions which may be regulated and varied at will by a cock,
drop meter and pipe.
By this continuous supply in small quantities the petroleum contained in the
carburetter reservoir is kept at a constant level.
Dated this 23rd day of March 1892.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, Loudon, W.C., Agents for the Applicant..
COMPLETE SPECIFICATION.
Improvements in and relating to Gas and Petroleum Engines.
I, PIERRE BILBAULT, of 40 Rue des Alouettes, Paris, in the Republic of
France, 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 :-
My improved engine which forms the subject of the present invention operates
by means of air and gas or petroleum or any other mixture which explodes at a
certain pressure, and it has two phases, that is to say, it gives an impulsion for
every revolution of the crank.
It is provided with two fly wheels, and the cylinder may if desired be cast in one
piece with the frame or made separately.
On the cylinder are arranged a compression chamber with ribs an escape box
with its flap valve, an admission slide valve and an igniting device which acts by
means of a heated platinum wire.
In the accompanying drawing I have shown how my said, invention may be con-
veniently and advantageously carried into practice.
Figure 1 is a side elevation partly in section of my improved engine.
Figure 2 a plan of the same and
Figure 3 is a detail view of a carburetter drawn to a smaller scale.
A is a slide valve arranged at the front part of the engine cylinder B in a box C,
the said valve being actuated by an eccentric D and serving to regulate the supply
to the engine. By reason of the arrangement of its apertures the said slide valve
permits the passage of air and gas to the front part of the cylinder, which has at
this end a stuffing box E. The engine piston F performs the part of a pump.
When it moves to the rear four apertures a b c d in the aforesaid slide valve are
opened and allow the passage of the air and gas in order to be forced, during the
forward movement, through three apertures de fiuto a supply reservoir G provided
in the frame of the engine,

page_text: When the piston arrives at the end of its forward stroke two of the said
apertures c d are closed and two others g h are opened for allowing the passage of
the mixture which is at a certain pressure in the supply reservoir G into the
cylinder at the rear of the piston. At this moment, the escape being open, the
mixture passes easily into the engine cylinder B whereupon the escape is imme-
diately closed by means of a small flap valve actuated by an eccentric. As the
engine piston F continues its backward movement, it compresses the mixture, and
the small platinum wire being heated to a white heat ignites it, which causes the
motion of the engine.
My improved igniting device comprises a small platinum wire k heated by a blow
pipe supplied by the explosive mixture coming from the above-mentioned supply
reservoir G and passing through a small india rubber pocket m for keeping it at
a certain pressure, or by a gas obtained independently of the engine. This igniting
device is arranged on the rear part in a cavity so that there shall always be a
burnt mixture. When the compression takes place the explosive mixture forces
away the burnt gas and heats the wire k which causes the ignition.
I may employ an igniting device of different construction, operating either by
means of an electric spark or a flame.
The cooling of the cylinder is effected by a circulation of water in a jacket.
This water is admitted through a pipe H placed below the cylinder and leaves
through a second pipe K placed upon the said cylinder. The cylinder may also be
cooled without the use of water by means of a series of ribs similar to those at L
on the rear part of the cylinder which has no circulation of water.
This engine is provided with a governor M having balls N adapted to roll
between two bevel surfaces and P. As these balls move away from the centre
they displace the upper cone O which rises. The lower cup P has a round part Q
which serves as a ring and which is fixed to a sleeve R at the extremity of which
is attached a ring for keeping this sleeve R upon the support of the governor.
I also fix upon this sleeve a pulley S operated by a cord or belt. The afore-
said upper cone O is connected with a small cord T which traverses the sleeve of
the former and to which is fitted a spiral spring U the tension of which is
regulated by a nut V with the object of enabling the velocity of the engine to be
varied. This mechanism operates a device which is designed to control the
admission of the gas, and comprises a small cylindrical plug X having a conical
part in the middle. At the lower part of this plug is placed a small spring Y which
always bears against the above mentioned rod T set in motion by the balls.
This improved engine can be worked with ordinary gas or with air carburetted
by means of petroleum. In the latter case the gas admission pipe is branched off,
as shown to a small scale in Figure 3, from the upper part of a carburetter
composed of a cylindrical body Z provided with a false bottom v of wire gauze or
perforated sheet metal below which is placed a petroleum vessel. The portion
below the perforated bottom is in communication through a tube n with the atmo-
sphere. Through this tube enters atmospheric air which makes its way through
the petroleum and escapes through the holes in the false bottom v in order to pass
into the said cylinder Z and to escape through the admission pipe, o. By the side
of the carburetter cylinder is a reservoir W closed by a perforated cover, which
reservoir contains a supply of petroleum which descends drop by drop in
proportions which may be regulated and varied at will by a cock p drop meter q
and pipe r.
By this continuous supply in small quantities the petroleum contained in the
carburetter reservoir is kept at a constant level.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
First. The arrangement of the improved engine with its slide valve upon the
front of the cylinder, substantially as hereinbefore described,

page_text: Second. The arrangement of the various orifices existing in the jacket of the
cylinder, which orifices communicate with the interior of the latter and those corre-
sponding with the supply reservoir as hereinbefore described.
Third. The slide valve and its various orifices and their arrangement enabling
the introduction and distribution of the mixture into the cylinder.
Fourth. The plate serving for the admission of the air and of the gas with its
orifices.
Fifth. The improved mode of igniting by a platinum wire heated by means of
a blow pipe supplied by the explosive mixture, which is taken from the supply
reservoir.
Sixth. In a gas or petroleum engine the herein described arrangement of
governor.
Seventh. The herein described arrangement of carburetter for driving the
improved engine with petroleum.
Dated this 23rd day of December 1892.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.