Year: 1898

page_text: I, LEONCE DEFLESSELLE, of 95, Boulevard d'Alsace Lorraine, Amiens, France,
Mechanician, do hereby declare the nature of this invention to be as follows:-
This invention relates to a motor in which there works a rotary disc comprising
several pistons which move in a direction inclined to the radii of the disc. This
motor can be worked by any fluid whatever under pressure, such as water, steam,
compressed air and by explosive fluids such as gas, petroleum, acetylene, etc., etc.
In each of these cases, the rotary motor with multiple cylinders, will be con-
structed in accordance with the use of each of these fluids. The motor com-
prises a rotary disc keyed on the main engine shaft and turning in a cylindrical
casing which is tight jointed on all its faces. This disc is divided into four
parts by four partitions which are arranged along two diameters at right angles
to each other. From the end of each of these diameters there extend partitions
or slightly undulating surfaces which extend more and more away from the
geometrical periphery of the disc and terminate towards the centre of the next
following diametrical partition, and so on; all these said partitions and surfaces
being cast in one piece and forming the rotary disc upon which the fluid under
pressure acts. The fixed ring in which the rotary disc aforesaid turns, is formed
with three rectangular recesses situated on this ring at equal distances from each
other, and in which are adapted to work pistons of special shape whose internal
face is designed to slide over the undulating surfaces of the rotary disc provided
with a segment of bronze. Near each of the recesses of the above mentioned
pistons there is provided an admission valve. There are thus three valves on the
periphery of the ring above mentioned. The admission of the fluid under pres-
sure or of the explosive fluid, is effected behind each of the radial partitions of
the rotary disc that acts as a piston and for each partition at the moment when
said partition passes near an admission valve. An exhaust opening is pierced
in the ring between two valve recesses and near each valve there is provided in
cases where gas is employed, an igniting tube heated to cherry-red. The explo-
sions or admissions take place one after the other all round the rotary disc. In
the case of a motor worked by gas or explosive fluid of any kind, the reservoir
which is designed to supply gas or air to the distributing chambers, must be
maintained under pressure. For this purpose, there may also be employed the
above mentioned pistons which, in the expansion of the gas, serve as obdurating
devices on the side opposite to that side of the partition that constitutes a piston,
in order that the said partition shall receive the whole effect of said expansion.
In order to maintain the pressure in the reservoir the following arrangement may
be employed.
A free space is formed at the rear of each movable piston in the ring. When
the disc is in motion, the outer air is drawn in after the passage of each of the
four partitions of said disc. The opening is at once stopped up by the next
following inclined plane of the disc in motion. The air will thus become com-
pressed and will escape into air chambers which are situated behind each movable
piston, by raising the valve of each of the air chambers adjacent to the above

page_text: mentioned chambers and which communicate therewith. This pressure acting
above the said pistons force them always to move down and consequently to bear
upon the four undulating or inclined guide ways of the rotary disc. From these
chambers of the pistons, this air is led directly into a compressed air receiver by
means of an air inlet having pipes each ending in a central reservoir, which is
common to all the air chambers and the explosion chambers which receive their
explosive fluid by means of pipes connected with the central reservoir. If the
pressure produced by the above described arrangement is not sufficient, it may be
increased by means of air pumps of a larger or smaller size composed of a piston
with segments. The movement of the distribution of the fluids into the explosion
chambers may be controlled or effected by any means whatever, such as by means
of a cam or other device. In the case when cams are used to obtain a determined
speed, a centrifugal action governor is mounted in the interior of the rotary disc
and is fixed upon the latter in such a manner that the greater or smaller centri-
fugal force shall move the distributing cam so as to open the inlet valves more
or less and thus allow a greater or less quantity of the fluids to enter into the
explosion chambers.
The fixed ring of the motor is divided into compartments consisting of water
chambers for cooling the walls of the cylinders. This water is supplied by means
of a pipe which is connected to the upper part of the motor and which com-
municates with all the water chambers. These chambers are omitted when the
motor is to be worked by steam and they may be replaced by steam chambers.
Dated this 24th day of November 1898.
ROBERT E. PHILLIPS, Assoc.M. Inst.C.E., M.I.Mech. E.,
Chartered Patent Agent, 70, Chancery Lane, London, W.C.,
Associate Agent.
I, LEONCE DEFLESSELLE, of 12, Petite rue de la Barrette, Amiens, in the Republic
of France, and formerly of 95, Boulevard d'Alsace Lorraine, Amiens, in the
Republic of France, Constructor of Machinery, do hereby declare the nature of
this invention and in what manner the same is to be performed, to be particu-
larly described and ascertained in and by the following statement:-
:―
This invention relates to a motor in which there works a rotary disc actuated
by several pistons which move in a direction inclined to the radii of the disc, and
which may be moved away from it at will by means of planes inclined on the
rotary disc.
The arrangement of the parts of this motor is such that it can be worked by any
fluid whatever under pressure, such as water, steam, compressed air, and by
explosive fluids such as gas, petroleum, acetylene, etc.
In each of these cases, the rotary motor with multiple cylinders will be con-
structed to correspond with the requirements of each of these fluids.
I have shewn in Figs. 1, 2, 3, and 4 an example of the working of my rotary
motor with multiple cylinders, as adapted for being worked with gas or petroleum.
Fig. 1 is a front view of the motor, side view of the regulator and with the dis-
tributing gear omitted.
Fig. 2 is a vertical section of the motor according to a plan taken on the
line A-B of Fig. 3.
Fig. 3 is a transverse section on the line C-D of Fig. 2.

page_text: Fig. 4 is a transverse section on the line G-H of Fig. 2.
According to the aforesaid figures, the working of my rotary motor is as
follows:-
Supposing the rotary disc a (Fig. 2) to be placed in the position as shewn, the
upper movable piston c located in the fixed ring will move down upon the
inclined or circular plane of the rotary disc a which is made steam or gas tight on
all its faces to prevent leakage under pressure.
Supposing, now, that the carburetted air or gas reservoir is under sufficient
pressure and that the admission valve E is open, a certain quantity of the fluid
will enter into the explosion chamber and will also occupy the free space between
the movable piston C and the radiating part of the rotary disc a.
Supposing, now, that the whole of said space is filled with the fluid that the
igniting tube X, fixed over the explosion chamber d, is heated to cherry-red, and
its temperature is sufficiently high to ignite the explosive fluid, the result will
be a more or less violent explosion which will impart to the disc a rotary motion
from right to left causing it to turn upon its axle R. The explosive force will
act in the same direction until the gases produced by said explosion, effect their
escape into the exhaust chamber h, through the opening leading thereto pierced
inside the fixed ring b.
will
From this moment, supposing always that the carburetted air reservoir is main-
tained under pressure, the, explosion chamber d on the left side of Fig.
also be full of fluid, and the tube X, supposing always that it is heated to a suit-
able degree, will again cause an explosion in the chamber d imparting thereby
another rotary motion in the same direction to the rotary disc a, and the action
will be the same for the third position, right side of the rotary disc a with the
movable piston C.
From the above description and an inspection of the working of the apparatus,
it will be seen that the admissions or explosions take place one after the other
and that the more movable pistons there are in the same fixed ring b, the less
vibration and the more regularity there will be in the rotary motion, because
there are no more dead points and all the said movable pistons work one after
the other.
+
The foregoing description applies to a motor worked by gas or any other ex-
plosive fluid and it follows that the reservoir which is designed to supply air or
gas to the chambers of distribution and explosion must be maintained under pres-
sure, and for this purpose there may again be employed the movable pistons in
the following manner:
Taking the position of the movable piston C in the upper part, and examining
in Fig. 2 the right side and the rear of the movable piston C and the rotary disc a,
there is seen to remain a free space having more or less volume which will be full
of air, said air passing through the opening g pierced in the fixed ring b.
When the rotary motor disc is in motion from right to left, its inclined plane
will stop this opening g, all the air will be retained in the said space, and, the
disc continuing to turn in the same direction, will be more or less compressed,
and will escape into the air chambers F which are situated behind each movable
piston C, by raising the valve of each of the air chambers F; moreover, each one
of the aforesaid air chambers communicates with each one of those of the movable
pistons C at their upper part by means of an opening.
This pressure acting above the said piston C forces them always to move down
towards the centre of the rotary disc a and consequently to bear upon the four
guide ways of the rotary disc. From the chambers of the pistons C, the said air
is led directly into a compressed air receiver by means of an air inlet having pipes
each ending in a central reservoir, which is common to all the air chambers and
to the explosion chambers which receive their explosive fluid by means of pipes
connected with the central reservoir.
This arrangement is not shewn in the figures.
If the pressure produced by the above described arrangement is not sufficient,

page_text: it may be increased by means of air pumps of a larger or smaller size, as shewn in
Fig. 3, composed of a piston P with segments, which takes the air at the lowest
point of its course, and when moving upwards forces said air into the clack-box
placed above, said air escaping through the opening in the clack-box and being
led by a pipe into the central reservoir.
The movement of the distribution of the fluids into the explosion chambers
may be controlled or effected by any means whatever. In the case described in
Fig. 4 it is controlled in the following manner:-
On the motor axle there is fixed a cam which slides longitudinally and is pro-
vided with an inclined plane acting on the piece fixed at the end of a lever, the
other end of which by axial oscillation strikes the stem of the admission valve,
thus allowing the explosive fluids coming from the central reservoir to pass
through the pipe E¹; said valve opens into the interior of the explosive chamber d.
The same arrangement may exist for each of the explosion chambers d, except
that there shall be only one cam to control all the valves E.
is
In order to obtain a determined speed, a centrifugally acting governor
mounted in the interior of the rotary disc, and is fixed upon the latter in such a
manner that the greater or smaller centrifugal force shall move the distributing
cam so as to open the inlet valves E more or less and thus allow a greater or less
quantity of the fluids to enter into the explosion chambers d.
This arrangement gives a determined regularity and speed, and reduces to a
minimum the quantity of fluid expended for each stroke of the piston on the
rotary disc.
The exhaust outlet of all the cylinders closed, by the rotary disc a is indicated
by the letter M; these may be all connected together or may be kept separate.
All the compartments N shewn on the fixed ring are reservoirs or water
chambers for cooling the walls of the cylinders. This water comes through the
pipe and other pipes O placing all the chambers N in communication.
When the apparatus works by steam under ordinary pressure the water
chambers are omitted and replaced by steam chambers, the arrangement being
nearly the same.
When rotary motors with multiple cylinders are worked by explosive fluids,
the system of igniting by incandescence shewn in the annexed figures may be
replaced by other systems such as electric sparks.
Moreover, the system may be worked horizontally vertically, obliquely or in
any other position.
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 new system of rotary motor with multiple cylinders herein described,
wherein all the cylinders work simultaneously and move synchronically, thereby
suppressing all vibration and dead points, as herein described and set-forth.
2. The general arrangement in construction, the mode of distribution and the
means for causing the pistons to bear upon the ways of the cylinders, avoiding
the use of springs; with necessary variations of the arrangement of said system
and also modifications of the form size and details of construction as before
described.
T
1
0.11 of August 1800