and for other purposes
Year: 1897

page_text: Date of Application, 20th May, 1897
Complete Specification Left, 22nd Jan., 1898-Accepted, 20th May., 1898
any suitable combustible gas or gaseous mixture, adapted for the propulsion of motor
cars and for other purposes.
In order that my invention may be readily understood, I have represented in the
accompanying drawing, but by way of example only, the arrangement forming the
object of my invention.
In these drawings:
Figure 1 represents a vertical section taken along the axis of the driving shaft of
my motor.
Figure 2 is a vertical section taken in a plane at right angles to the axis of such
shaft.
Figure 3 is a horizontal section upon the said axis.
Figure 4 represents a vertical section through the valve chambers.
Figure 5 is a vertical section through the governor, upon the line 1-2
Figure 1.
Figure 6 shews upon a larger scale a detail view of the spring and adjusting nuts
of the centrifugal governor.
Figure 7 shews upon a larger scale detail views of the cross-piece and of the plug
closing the valve chambers, and
Figure 8 shews separately a method of governing by means of gearing and the
admission valves.
In these different figures the same letters of reference are employed to designate
similar parts.
This
My motor comprises, in principle, a frame a formed by two halves of a box united
by a tight joint and together forming an hermetic box or case in which are provided
two bronze sockets or bearings a' through which passes the driving shaft b.
box is partially filled with oil, which, whilst the motor is acting, is projected upon
the internal walls by centrifugal action thus ensuring the lubrication of the driving
shaft, the pins, the connecting rods, and of the different distributing parts, and
likewise the partial lubrication of the cylinders and pistons, such lubrication being
further provided for by means of a special arrangement which is hereinafter
described.
An opening c serves for mounting and for inspecting the parts located within the
frame.
Flanges a cast upon each side of the frame a, are provided for the purpose of
securing the motor upon the framework of the vehicle which it serves to propel.
Upon the frame a are fixed the cylinders d closed at their upper portions by
spherical ends d' which are in one piece with the admission and discharge valve
chambers.
These valve chambers, the spherical ends and the upper portion of the cylinders in

page_text: which the explosion of the explosive mixture takes place, are entirely surrounded by
a water jacket in which the circulation is maintained in any convenient manner and
in suitable conditions for keeping the cavities around which it passes at the most
appropriate temperature for ensuring the efficient working of the motor.
In the cylinders d slide the pistons e provided with segmental parts, and which
transmit their motion to the driving shaft 6 by means of the two connecting rods f.
The lubrication of the cylinders and pistons, already partly provided for in the
manner above described, that is to say by the projection of the oil contained within
the frame, is completed in a manner which is absolutely perfect, by means of one or
more lubricators communicating with the tubes g and distributing their oil all round
the piston through an inclined transverse groove g¹ formed upon the inner face of
the cylinders; this oil completely lubricates the cylinder as it is carried along by the
two further grooves or channels formed upon the two extremities of the pistons.
This inclined arrangement of the lubricating groove g¹, constitutes a very important
improvement upon the methods of lubrication hitherto in use, these being carried
out simply by means of horizontal grooves, and, as the passage of the oil all round the
cylinder is not thereby ensured, only generating lines adjacent to the lubricating hole
are properly lubricated, the lubrication of the other portions being absolutely
uncertain, and it is owing to this that the frequent heating and binding, which occurs
in motors as hitherto constructed, takes place.
My motor is of the four cycle type, and has two cylinders with cranks placed
at 180°, that is to say perfectly balanced, because there is no longer any displacement
of the centre of gravity of the whole system or assemblage consisting of the pistons
and connecting rods; the pistons being displaced by approximately equal amounts
and in opposite directions and the cranks balancing of themselves.
The various operations are effected in two revolutions of each cylinder, in the
following manner

page_text: It will be
The suction of the explosive mixture is effected by the piston itself; in descending
it produces a vacuum above it-the valve k rises under the influence of the atmos-
pheric pressure and allows the mixture arriving by the pipe to pass.
noticed that by the arrangement adopted of having a single chamber for the lower
portion of the admission valves, a single pipe is sufficient for conducting the mixture
to the two cylinders, thereby simplifying the motor. It will of course be under-
stood that this explosive mixture is supplied as required by a carburetter of any
suitable kind or by any other apparatus which will ensure regularity of action of the
motor.
During its return, the piston compresses the explosive mixture and closes
the admission valve which is held upon its seat by a spring of suitable
tension.
Immediately after this compression, at the instant when the second direct
stroke commences, the explosion is effected by means of a platinum tube m raised
to incandescence by a burner of any appropriate description. This tube is fixed by
a union upon a second tube of steel which is screwed in the wall of the valve chamber
and opens near to the admission valves in proximity to the inlet for the mixture of
fresh gas.
The length of the platinum tube is calculated in such a manner that the burned
gases present are forced sufficiently far upon the termination of the compression, to
allow the fresh mixture to come in contact with the incandescent portion of the
platinum tube.
During the second return stroke, the gases are expelled through the valve n and
are conducted through the tube o into discharge receivers suitably arranged in order
to prevent noise and to completely reduce the pressure of the gases before discharging
them into the open air.
These discharge valves n are raised by the two vertical rods z which are actuated
by the two bent levers i and j whose oscillatory motion is produced by the
groove h¹ forined upon the circumference of the pulley h and by means of the
two parts sliding in the said groove. As this groove, as I have already observed,
passes twice round the pulley before returning to its point of departure, the
vertical rods only act upon the valves upon every second revolution.
As shewn in Figure 4, the vertical rods do not act directly upon the discharge
valves, but by means of two parts p, ploscillating upon two axes q.
A centrifugal governor r placed upon the driving shaft b, actuates a lever 8 which
acts upon the horizontal rod t placed in front of the cylinders, and causes by its
displacement from left to right the rise of the extremity of the pawls u u¹ which
thereupon engage in the notches formed in the corresponding parts p p¹ and
force these parts to turn around their respective axes q q¹ upon the rising of
the vertical rods, and thus prevent these rods from causing the discharge valves
to open.
From this it will be understood the manner in which the governing of the motor
is effected.
The centrifugal governor r is regulated for a predetermined normal speed by means
of the spring and nuts 2 (Figures 1 and 6).
When this norinal speed is exceeded the balls 3 separate from the axis and
push from right to left the sleeve v, which slides upon the socket a¹ of the frame
acting upon the lever 8 which prevents the discharge valves from rising in the manner
before explained.
On reference to the drawing it will be seen that the arrangement employed permits
of obtaining a methodical regulation by acting first upon one valve, and then upon
the other valve a little later should this be necessary.
The discharge valve remaining closed, the burned gases will remain confined in the
cylinder and will be compressed in such a manner as to prevent the automatic
admission valve from opening; these gases will then be reduced during the succeeding
direct stroke, which corresponds to the suction without fresh gases being introduced

page_text: within the cylinder. An explosion has thus been suppressed and the motor caused
to resume its normal speed.
It should be remarked that this regulation takes place very rapidly, because this
device is designed in such a manner as to make it impossible for the parts p pl
to act so as to occasion a partial rise of the discharge valves. In fact, they
eitber act in such a manner as to completely lift these valves, or, if the motor
exceeds its normal speed, the simple engagement of the pawls u u¹ forces them,
when rising, to pass quite clear of the valve rods before again reaching the highest
point of their stroke.
As a consequence of this, those partial introductions of gaseous
mixture are prevented which, in the older forms of motors, retard their return to the
normal speed.
I should also point out that the governor is absolutely protected from dust and
from external influences, being entirely encased in a cylindrical box closed on the
side adjacent to the motor by a disc v¹ cast upon the sleeve v.
The starting of the motor is readily effected in the following manner:
Upon the back of the plate v2 (Figure 1) carrying the governor, and which is keyed
upon the driving shaft, is arranged a pawl x (Figure 5) movable around its axis ;
this pawl tends, under the influence of a spring a to gear with a ratchet wheel
having four internal teeth (Figure 5). This wheel which is loose upon the driving
shaft, is capable of receiving, either by means of a handle or by means of a chain and
pinion, a rotary motion in the same direction as the motor; this motion is transmitted
to the shaft by the pawl x, and, when an explosion takes place, the motor starts and
the pawl which turns with the driving shaft disengages itself under the influence of
centrifugal force, whilst the wheel y remains at rest.
In addition to the special and novel arrangements above described, the arrangement
of the valves in a single line with one pipe and one chamber to the suction valves,
enabling these valves to be examined without disconnecting any piping, and the
closing of the chamber by cylindrical plugs t¹ held in place by cross-pieces t2 held by
two pins should be noticed. These cross-pieces t2 end in two sockets one of which is
open in the form of a hook thus permitting the valves to be very readily inspected
by slightly unscrewing one of the nuts and causing the cross-piece to turn around the
second pin; all that is then necessary is to take out the plug -t¹ which is above the
valve which it is desired to examine.
These exceedingly simple dispositions permit of the parts being readily examined,
rendering the cleaning, dismounting and remounting of the various valves very rapid,
contrary to what obtains in motors of this class as hitherto constructed, in which the
arrangements are very complicated.
It will of course be understood that the regulation of the speed of the motor may
be effected either by closing the admission valves or by restricting the opening for
the admission of the mixture.
One device for the regulation of the admission valves comprises: a pinion fixed
upon the driving shaft and driving a wheel on a shaft parallel to the driving shaft
upon which second shaft moves a sleeve having two cams upon which the vertical
rods constantly bear by means of the rollers, and an articulated lever which lifts the
rods of the admission valves.
When working at a
The cam sleeve is displaced by the action of the governor.
normal speed the cams raise every second revolution each of the admission valves.
If this speed is exceeded, the governor displaces the cam sleeve, the rollers bear
against the cylindrical portion, the rods are no longer raised, no explosive mixture is
introduced into the cylinders and the motor resumes its normal speed.
I may also replace the pulley provided with the double groove by cams carried by
a shaft to which the movement of the driving shaft is imparted by means of gearing
in the relation of 1 to 2.
I may likewise employ such form of pump or other apparatus as I may deem
suitable in order to ensure the circulation of water around the cylinders and ends of
the motor.
The motor may be provided with any form of carburetter or other apparatus

page_text: fulfilling the same object and ensuring the efficient action of the motor.
The ignition of the explosive mixture may be caused either by means of incan-
descent platinum tubes, by electricity, or in any other appropriate manner.
The cranks at an angle of 180° may be replaced by cranks placed in the direction
of one or the other produced, in case I find it useful and advantageous to have an
explosion at each revolution of the driving shaft.
I may employ such form of discharge reservoir as appears to me to be adapted
to improve the conditions of the discharge and I may vary the arrangement of
the same.
I may also modify or replace the flanges or lugs intended for fixing the motor upon
the framework of a motor vehicle, either by a base or sole plate or by any other
suitable arrangement, according to the application of my motor.
I may likewise, if necessary, arrange my motor horizontally, preserving the same
general dispositions but modifying either wholly or in part the detail parts, according
to the requirements of this arrangement.
I may furthermore vary the forms, dimensions, and details and also the materials
of the parts of which my apparatus is constructed, without thereby departing from
the principle of my invention.
I, EDOUARD ROSSEL, of 82, Rue des Sarrazins, Lille (Nord), 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 :-
This invention relates to a new and improved motor, actuated by petroleum, or by
any suitable combustible gas or gaseous mixture, adapted for the propulsion of motor
cars and for other purposes.
Referring to the drawings left with my Provisional Specification
Figure 1 represents a vertical section taken along the axis of the driving shaft of
my motor.
Figure 2 is a vertical section taken in a plane at right angles to the axis of such
shaft.
Figure 3 is a horizontal section upon the said axis.
Figure 4 represents a vertical section through the valve chambers.
Figure 5 is a vertical section through the governor, upon the line 1-2, Fig. 1.
Figure 6 shews upon a larger scale a detail view of the spring and adjusting nuts
of the centrifugal governor.
Figure 7 shews upon a larger scale detail views of the cross-piece and of the plug
for closing the valve chambers, and
Figure 8 shews separately a method of governing by means of gearing and the
admission valves.
In these different figures the same letters of reference are employed to designate
similar parts.
My motor comprises, in principle, a frame a formed by two halves of a box united
by a tight joint and together forming an hermetic box or case in which are provided
two bronze sockets or bearings a¹ through which passes the driving shaft b. This box

page_text: or case is partially filled with oil, which, whilst the motor is acting, is projected upon
the internal walls by centrifugal action thus ensuring the lubrication of the driving
shaft, the pins, the connecting rods, and the different distributing parts, and
likewise the partial lubrication of the cylinders and pistons, such lubrication being
further provided for by means of a special arrangement which is hereinafter
described.
An opening c serves for mounting and inspecting the parts located within the
frame.
Flanges a cast upon each side of the frame a, are provided for the purpose
of securing the motor upon the framework of the vehicle which is served to 1
propel.
Upon the frame a are fixed the cylinders d closed at their upper portions by
spherical ends d¹ which are in one piece with the admission and discharge valve
chambers.
These valve chambers, the spherical ends and the upper portion of the cylinders
in which the explosion of the explosive mixture takes place, are entirely surrounded
by a water jacket in which the circulation is maintained in any convenient manner
and in suitable conditions for keeping the cavities around which it passes at the most
appropriate temperature for ensuring the efficient working of the motor.
In the cylinders & slide the pistons e provided with segmental parts, and which
transmit their motion to the driving shaft b by means of the two connecting
rods f.
The lubrication of the cylinders and pistons, already partly provided for in the
manner above described, that is to say by the projection of the oil contained
within the frame, is completed in a manner which is absolutely perfect, by means
of one or more lubricators communicating with the tubes g and distributing their
oil round the piston through an inclined transverse groove g₁ formed upon the inner
face of the cylinders; this oil completely lubricates the cylinder as it is carried along
by the two further grooves or channels formed upon the two extremities of the
pistons.
This inclined arrangement of the lubricating groove g³ constitutes a very important
improvement upon the methods of lubrication hitherto in use, these being carried
out simply by means of horizontal grooves, and, as the passage of the oil all round
the cylinder is not thereby ensured, only generating lines adjacent to the lubricating
hole are properly lubricated, the lubrication of the other portions being absolutely
uncertain, and it is owing to this that the frequent heating and binding, which
occurs in motors as hitherto constructed, takes place.
My motor is of the four cycle type, and has two cylinders with cranks placed
at 180°, that is to say perfectly balanced, because there is no longer any displacement
of the centre of gravity of the whole system or assemblage consisting of the pistons
and connecting rods; the pistons being displaced by approximately equal amounts
and in opposite directions and the cranks balancing of themselves.
The various operations are effected in two revolutions of each cylinder, in the
following manner.
1st cylinder.
2nd cylinder.
1st revolution
-
1st half-revolution-suction of the

page_text: advantage is secured of suppressing unpleasant vibration when the motor is used
upon a motor vehicle, and which is especially prejudicial to the life of the vehicle
and of the different parts forming the propelling mechanism.
The admission valves of this motor are automatically actuated, and the escape valves
are governed by the assemblage consisting of the rods z, the levers i, j, the
parts p, q, p¹ q¹ and the cam h which latter is fixed upon the crank shaft.
For this purpose the cam h has formed upon its circumference a groove h¹ suitable
for producing the cycle above described closing after two revolutions. In this
groove h¹ travel two guide blocks carried by one of the two extremities of the levers i
and j respectively.
In similar arrangements this groove is only capable of actuating the valve of a
motor having one piston or two pistons acting together, that is to say attached to the
same crank pin, and it would be necessary to employ two such grooves with a motor
having cranks arranged at an angle of 180°; but with the arrangement which I
adopt for the bent levers i, j actuated by the guide blocks arranged at 180° one from
the other around the cam h, it will readily be seen that a single groove suffices for a
balanced motor.
The suction of the explosive mixture is effected by the piston itself; in descending
it produces a vacuum above it-the valve k rises under the influence of the
atmospheric pressure and allows the mixture arriving by the pipe to pass. It will
be noticed that by the arrangement adopted of having a single chamber for the lower
portion of the admission valves, a single pipe is sufficient for conducting the mixture
to the two cylinders, thereby simplifying the motor. It will of course be understood
that this explosive mixture is supplied as required by a carburetter of any suitable
kind or by any other apparatus which will ensure regularity of action of the
motor.
During its return, the piston compresses the explosive mixture and closes the
admission valve which is held upon its seat by a spring of suitable tension.
Immediately after this compression, at the instant when the second direct stroke
commences, the explosion is effected by means of a platinum tube m raised to
incandescence by a burner of any appropriate description. This tube is fixed by a
union upon a second tube of steel which is screwed in the wall of the valve chamber
and opens near to the admission valves in proximity to the inlet for the mixture of
fresh gas.
The length of the platinum tube is calculated in such a manner that the burned
gases present are forced sufficiently far upon the termination of the compression, to
allow the fresh mixture to come in contact with the incandescent portion of the
platinum tube.
During the second return stroke, the gases are expelled through the valve n and
are conducted through the tube o into discharge receivers suitably arranged in order
to prevent noise and to completely reduce the pressure of the gases before discharging
them into the open air.
These discharge valves n are raised by the two vertical rods z which are actuated
by the two bent levers ȧ and j whose oscillating motion is produced by the groove h¹
formed upon the circumference of the cam h by means of the two parts sliding in the
said groove.
As this groove, as I have already observed, passes twice around the cam
before returning to its point of departure, the vertical rods only act upon the valves
at every second revolution.
As shown in Figure 4, and 4 the vertical rods do not act directly upon the
discharge valves, but by means of two parts p p¹ oscillating upon two axes q q¹.
When the motor has exceeded its proper speed, a rod t, connected with the regulator
by the lever & causes the levers u u¹to take the position shown in full lines in
Figure 4 in engagement with the notches g of the parts p p¹; in proportion as the
parts p p rise these latter are caused to incline towards the left, so as to pass to the
side of the valve rods without raising them.
The speed of the motor is then reduced and the regulator, through the rod t
releases the lever u and u¹ which are then acted upon by the springs 10, and caused

page_text: to resume their position against the stops 11. The part p p¹ are likewise drawn back
by the springs 12.
Figure 4 shows the levers u ul engaged in their respective notches g of the
parts pp, that is to say in the position in which the valves are not acted
upon.
A centrifugal governor placed upon the driving shaft b, actuates a lever 8 which
acts upon the horizontal rod t placed in front of the cylinders and causes by its
displacement from left to right the rise of the extremity of the pawls u u¹ which
thereupon engage in the notches formed in the corresponding parts p p¹ and force
these parts to turn around their respective axes q q' upon the rising of the vertical
rods, and thus prevent these rods from causing the discharge valves to open.
From this will be understood the manner in which the governing of the motor is
effected.
The centrifugal governor r is regulated for a predetermined normal speed by means
of the spring and nuts 2 (Figs. 1 and 6).
When this normal speed is exceeded the balls 3 separate from the axis and push
from right to left the sleeve v, which slides upon the socket a¹ of the frame acting
upon the levers which prevents the discharge valves from rising in the manner
before explained.
On reference to the drawing it will be seen that the arrangement employed permits
of obtaining a methodical regulation by acting first upon one valve, and then upon
the other valve a little later should this be necessary.
The discharge valve remaining closed, the burned gases will remain confined in
the cylinder and will be compressed in such a manner as to prevent the automatic
admission valve from opening; these gases will thus be reduced during the succeeding
direct stroke, which corresponds to the suction without fresh gases being introduced
within the cylinder. An explosion has thus been suppressed and the motor caused
to resume its normal speed.
It should be remarked that this regulation takes place very rapidly, because this
device is designed in such a manner as to make it impossible for the parts p p¹ to act
so as to occasion a partial rise of the discharge valves. In fact, they either act in
such a manner as to completely lift these valves, or, if the motor exceeds its normal
speed, the simple engagement of the pawls u u' forces them, when rising, to pass
quite clear of the valve rods before again reaching the highest point of their stroke.
As a consequence of this, those partial introductions of gaseous mixture are prevented
which, in the older forms of motors, retard their return to the normal speed.
I should also point out that the governor is absolutely protected from dust and
from external influences, being entirely encased in a cylindrical box closed on the
side adjacent to the motor by a disc v¹ cast upon the sleeve v.
The starting of the motor is readily effected in the following manner:
Upon the back of the plate v² (Figure 1) carrying the governor, and which is keyed
upon the driving shaft, is arranged a pawl x (Figure 5) movable around its axis ; this
pawl tends, under the influence of a spring ¹ to gear with a ratchet wheel z having
four internal teeth (Figure 5). This wheel which is loose upon the driving shaft, is
capable of receiving either by means of a handle or by means of a chain and pinion,
a rotary motion in the same direction as the motor; this motion is transmitted to
the shaft by the pawl a, and, when an explosion takes place, the motor starts and the
pawl which turns with the driving shaft disengages itself under the influence of
centrifugal force, whilst the wheel y remains at rest.
In addition to the special and novel arrangements above described, the arrangement
of the valves in a single line with one pipe and one chamber to the suction valves,
enabling these valves to be examined without disconnecting any piping, and the
closing of the chambers by cylindrical plugs t¹ held in place by cross pieces t² held
by two pins should be noticed. These cross pieces t2 end in two sockets one of which
is open in the form of a hook thus permitting the valves to be very readily inspected
by slightly unscrewing one of the nuts and causing the cross-piece to turn around

page_text: the second pin; all that is then necessary is to take out the plug t¹ which is above
the valve which it is desired to examine.
These exceedingly simple dispositions permit of the parts being readily examined,
rendering the cleaning dismounting and reinounting of the various valves very
rapid, contrary to what obtain in motors of this class as hitherto constructed, in
which the arrangements are very complicated.
It will of course be understood that the regulation of the speed of the motor may
be effected either by closing the admission valves or by restricting the opening for
the admission of the mixture.
Figure 8 shews a device for the regulation of the admission valves which
comprises: a pinion 1 fixed upon the driving shaft b and driving the wheel 2,
on a shaft 3 parallel to the driving shaft b upon which moves a sleeve 4 having two
cams upon which the vertical rods 6 constantly bear by means of the rollers 5,
and an articulated lever 7 which lifts the rods 8 of the admission valves.
The cam sleeve 4 is displaced by the action of the governor. When working at a
normal speed the cams 4 raise every second revolution each of the admission
valves. If this speed is exceeded, the governor displaces the cam sleeve 4, the
rollers 5 bear against the cylindrical portion, the rods 8 are no longer raised,
no explosive mixture is introduced into the cylinders and the motor resumes its
normal speed.
I may also replace the cam h provided with the double groove by cams
carried by a shaft to which the movement of the driving shaft b is imparted by
means of gearing in the relation of 1 to 2.
I may likewise employ such form of pump or other apparatus as
suitable in order to ensure the circulation of water around the cylinders
the motor.
may deem
and ends of
The motor may be provided with any form of carburetter or other apparatus
fulfilling the same object and ensuring the efficient action of the motor.
The ignition of the explosive mixture may be caused either by means of
incandescent platinum tubes, by electricity or in any other appropriate manner.
The cranks at an angle of 180° may be replaced by cranks placed in the direction
of one or the other produced, in case I find it useful and advantageous to have an
explosion at each revolution of the driving shaft.
I may employ such form of discharge reservoir as appears to me to be adapted to
improve the conditions of the discharge and I may vary the arrangement of the
same.
I may also modify or replace the flanges or lugs intended for fixing the motor upon
the framework of a motor vehicle, either by a base or sole plate or by any other
suitable arrangement, according to the application of any motor.
I may likewise, if necessary, arrange my motor horizontally, preserving the same
general dispositions but modifying either wholly or in part the detail parts, according
to the requirements of this arrangement.
I may likewise vary the forms, dimensions and details and also the materials of the
parts of which my apparatus is constructed without thereby departing from the
principle of my invention.
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 :-
A petroleum, combustible gas or gaseous mixture motor, characterised by
(1.) The arrangement for automatically lubricating the pins of the driving
shaft b, the heads of the connecting rods f and the different distributing parts.
(2.) The inclination of the cylinder lubricating groove g¹, which ensures the
lubrication of the entire surface of the cylinders.
(3.) The method of actuating by means of a single groove h¹ the discharge valves
of a motor having two balanced pistons, that is to say connected with two cranks
placed at 180° one from the other.

page_text: (4.) The arrangement of a single pipe and chamber for supplying the explosive
mixture to the two cylinders.
(5.) The governor 7 as a whole, comprising a sleeve v with disc v¹, a plate v², a
pawl x, a wheel y, a spring and balls 3, acting upon the discharge valves or upon
the admission valves, either simultaneously or in alternation and preventing any
partial admission of the explosive mixture.
(6.) The special arrangement adopted for starting the motor.
(7.) The special arrangement adopted form beti, etabling the valves to be readily
examined and cleaned, and also rapidly mounted and dismounted.
The whole arranged and combined substantially as above described with reference
to the drawing and for the purpose specified.
Dated this 22nd day of January 1898.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant,