Year: 1898

page_text: Date of Application, 9th Sept., 1898
Complete Specification Left, 9th June, 1899-Accepted, 15th July, 1899
I, FRITZ HENRIOD-SCHWEIZER, of Marin, in the Republic of Switzerland, Manu-
facturer, do hereby declare the nature of this invention to be as follows:-
This invention relates to an explosion-motor more especially intended to be acted
upon by means of mineral essences but which may also be acted upon by gas.
Its construction is so calculated that it is very suitable for motor-cars its working
causing no vibrations of the frame of the latter and its motive portions being com-
pletely surrounded by closed box or casing.
The invention is described as being applied to a motor constructed to work with
mineral essences; the devices intended to cause the ignition of the gas produced by
the mineral essence are not described, such devices being constructed according to
any one of the well-known systems of igniting-devices for instance by means of a
lamp or incandescent tube or by an electrical spark.
In carrying my invention into practice two cylinders are provided which are
arranged in axial prolongation from one another and which form substantially only
one cylinder having an enlarged middle-portion. In the cylinder thus formed there
is provided a double piston the two portions of which are. connected with one another
by means of a rigid piston rod having at its centre a slot arranged vertically to the
axis of the piston and intended to receive the pins of the crankshaft.
The said crankshaft is made of two portions terminating each in a crank the pins
of which engage the aforesaid slot of the piston rod either in view of having the two
portions of the shaft rotating inverse to one another or in line with one another in
view of having the two portions of the shaft rotating in one and the same direction
of rotation.
The cylinders are connected with one another by means of enlarged portions
and of collars forming an enlarged box or casing in which the cranks are free to rotate
and the piston rod free to move to and fro..
The distribution of the explosive mixture of the gas produced by the mineral
essence and of air and the escape of the products resulting from the explosion is
automatically provided for by means of suitable admission-valves and exhaust valves
the springs of which are suitably controlled so as to have in each of the cylinders one
explosion at every half-rotation of the crank shaft.
The admission-valves are each contained in a box which is connected by means of
suitable pipes with the ends of the cylinder. In the said boxes there are provided
conical partitions which are intended to facilitate the complete mixture of the
essence and air; the boxes are moreover provided with air holes. The rod of each of
the admission-valves is provided with a peripherical series of notches in that portion
of its length which is placed in the upper portion of the box to which is connected the
inlet-pipe intended to supply the mineral essence or gas.
When the admission-valve is closed, the notches of its rod are covered, but as

page_text: soon as the said admission-valve opens, the notches of its rod are put in com-
munication with the box and a predetermined quantity of essence is by means of
a plunger device distributed in the said notches and from there onto the
partitions.
A spring, the tension of which may be controlled by means of a screw-nut, effects
the closing of the adinission-valve.
The size of the opening of the inlet-pipes may be controlled by means of any
suitable device whatever, for instance by means of plungers having conical ends
and which may be set by means of a handlever and of connecting-rods, or by means of
any suitable regulator whatever.
The exhaust-valves are each combined with an exhaust-chamber connected to the
respective cylinder by means of apertures which are arranged so as to cause the gas
contained the respective cylinder to escape suddenly as soon as the said apertures are
uncovered by the pistons.
The exhaust valves are pressed upon their seats by means of springs, the tension
of which may be exactly controlled in view of preventing a re-opening of the
valves.
From the exhaust chambers the gas escapes through openings which are surrounded
by a double conical shield intended to reduce the noise of the exhaust.
As already explained the device intended to cause the ignition of the explosive
mixture may be of any of the well-known systeins or constructions whatever and I
therefore do not describe it here; the said device is suitably connected to openings
in the cylinder ends.
The working is as follows:
Supposing for instance one of the pistons to be at the commencement of its stroke
and the crank shaft to receive an impulse in the direction right to left and the igniting
device to be so regulated as to cause at that very moment, the ignition of the
compressed explosive mixture contained in the cylinder. The piston will then be
thrown forward and at the moment when the apertures are uncovered the gases
resulting from the explosion are suddenly acted upon in the same and this causes a
certain quantity of a mixture of air and gas to be drawn in through the admission
valve, whilst the piston continues its positive stroke. It is then returned on the one
hand by the action of the fly-wheels fixed to the crank-shaft and on the other hand
by the pressure acting on the other piston. The first piston then closes the apertures
and compresses the mixture of gas contained in the cylinder, which is composed of
gas drawn in through the admission valve and of the remainder of the products of the
preceding explosion. The tension of the springs of the exhaust-valve is so regulated
as to prevent the re-opening of the said valve during the return stroke of the piston.
When it reaches the end of its stroke the piston is driven over the dead centre by
means of the fly-wheels and the same working begins again.
In the other cylinder the same operation takes place and thus one explosion occurs
at every half-revolution of the crank shaft.
It will be understood that, in this motor, the crank shaft is acted upon by two
explosions at each revolution and that the motor works exactly like a steam-engine,
the cylinders and the pistons being in reality only one cylinder and one piston
respectively and receiving at each of its ends one impulse at every half revolution, the
explosion, the exhaust and the suction taking place at each extremity of the cylinder
and piston during one and the same positive stroke of each end of the piston.
Dated this 0th day of Santambor
1000

page_text: plain conical partition f, the outer diameter of which is somewhat smaller than the
inner diameter of the box F³, and a perforated partition fl which closely fits the
inner portion of the said box F3. The said partitions f and f¹ are intended to
facilitate the complete mixture of the essence and air; the box F3 is moreover
provided with air-holes f which may be controlled by means of a rotative shutter f³
provided with corresponding holes and intended to uncover the holes f² more or less.
The rode of the valve E³ is provided with a peripheral series of notches e² in that
portion of its length which is placed in the upper portion of the box F3 to which is
connected the inlet-pipe G intended to supply the mineral essence or gas.
When the admission-valve E3 is closed, the notches e2 of its rod e are covered but
as soon as the said admission-valve opens, the notches e2 of its rod e are put in
communication with the box F3 and a quantity of essence which is regulated by
means of the rod g is distributed in the said notches e2 and from there onto the
partition f which causes the same to drop from its periphery into the conical
partition f¹ and through the perforation of the same either to the box F or to the
box F. A perforated sleeve F is placed around a perforated portion of the box F3
and is adapted to be rotated around the same by means of its handle f with a view
This device is
of uncovering more or less the apertures of the said box F³.
intended to admit a further quantity of air into the mixture of air and gas which
has been formed above the valve E³.
A spring the tension of which may be controlled by means of a screw-nut e
effects the closing of the admission valve.
The size of the opening of the inlet-pipe G may be controlled by means of any
suitable device for instance by means of a rod g having a conical end and which may
be set by means of a hand wheel or by means of a suitable regulator.
The exhaust-valves I and I¹ are each combined with an exhaust-chamber J or J¹
connected to the respective cylinder by means of apertures j or j¹ which are arranged
so as to cause the gas contained in the respective cylinder to escape suddenly as soon
as the said apertures j or j¹ are uncovered by the pistons B or B₁.
The valves I or I¹ are pressed upon their seats by means of springs i i¹; the
tension of which may be exactly controlled in view of preventing a re-opening of the
valves.
From the chambers J and J' the gas escapes through the exhaust-pipes 2.
As already explained the device intended to cause the ignition of the explosive
mixture may be of any of the well-known systems of constructions and I therefore
do not describe it here; the said device is suitably connected to the openings K or K¹
of the cylinder ends or covers.
The working is as follows:
Supposing for instance the piston B₁ to be in the position shown in Figure 1 and
the crank axle D to receive an impulse in the direction of the arrow 1, and the
igniting device to be so regulated as to cause at that very moment the ignition of
the compressed explosive mixture contained in the cylinder A¹. The piston B1 will
then be thrown forward and at the very moment when the apertures j¹ are uncovered
the gases resulting from the explosion are suddenly passed into the same this causes
a certain quantity of a mixture of air and gas to be drawn in through the valve E
whilst the piston B¹ continues its positive stroke. It is then returned on the one
hand by the action of the disc cranks fixed to the crank shaft D and on the other
hand by the pressure acting on the piston B. The piston B¹ then covers the
apertures j and compresses the mixture of gas contained in the cylinder A¹, which
is composed of gas drawn in through the valve E¹ and of the remainder of the
products of the preceding explosion. The tension of the spring i of the exhaust
valve is so regulated as to prevent the reopening of the said valve during the return
stroke of the piston. When it reaches the end of its stroke the piston B' is driver
over the dead centre by means of the crank disc and the same working begin
again.
In the cylinder A the same operation takes place and thus one explosion occurs a
every half-revolution of the crank shaft D.
الو
:

page_text: It will be understood that, in this motor, the crank shaft D is acted upon by two
explosions at each revolution and that the motor works exactly like a steam engine,
the cylinders A A¹ and the pistons B B being in reality only one cylinder and one
piston respectively and receiving at each of its ends one impulse at every half
revolution, the explosion, the exhaust and the suction taking place at each extremity
of the cylinder and piston during one and the same positive stroke of each end of
the piston.
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 :-
An improved motor working with two explosions at each rotation characterised by
the combination of the two cylinders A and A' arranged in the prolongation of each
other and of two pistons B and B¹ rigidly connected with one another by means of
a piston rod C having a slot C¹, the said cylinders A and A¹ having each an admission-
valve E El respectively and an exhaust valve I, I' respectively a central distributing-
valve E³ the rode of which is provided with circumferential grooves e² with the
object of distributing the essence to the plain conical partition of the diameter of
which is smaller than the inner diameter of the box F³, and a perforated conical
partition causing the said essence to be suitably divided in its passage through the
box F3, holes being controlled by means of a rotative shutter f, and a divided
crank shaft D, each portion of which is provided with a disc crank or fly-wheel
having an excentric crank pin D1 D2 respectively engaging the slot C¹ of the piston
rod C, substantially as shown and described.
Dated this 9th day of June 1899
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C.,
Agents for the Applicant.