An purposes
Year: 1898

page_text: Date of Application, 21st June, 1893
·
LOLL
1000 Ancented 20th MON 1800
purposes.
1, HENRY HARRIS LAKE, of the Firm of Haseltine, Lake & Co., Patent Agents,
45, Southampton Buildings, in the County of Middlesex, do hereby declare the
nature of this invention to be as follows:
-
This invention relates to a motor for motor cycles or for other purposes and
more particularly to improvements, the object of which is to simplify construction
and ensure efficient working.
In carrying my invention into practice I preferably provide the driving cylinder
with external ribs or wings and in the said cylinder I arrange a piston connected
by means of the connecting rod with the crank-disc-fly-wheels which are rigidly
mounted upon the parts of the driving shaft. The driving cylinder is provided
above with a cover comprising two chests or valve boxes for the admission and
exhaust valves respectively, and below with a cylinder or casing closed by a
lateral cover in which cylinder the crank-disc-fly-wheels rotate. The one portion
of the driving shaft rotates in bearings in the said lateral cover and is continued
outside the same for the purpose of transmitting the power, whilst the other
portion of this shaft rotates in the bearings the first of which is in the cylinder
or casing and the other in a chest which is bolted to the said cylinder.
The admission chest receives the explosive mixture through the pipe and the
valve which it contains admits this mixture owing to the suction of the motor,
into a chamber in which is provided an electric igniting device attached to the
joint. The admission valve is applied in an upward direction upon its seat by
means of a spring and the igniting device is arranged directly beneath this valve.
The valve chamber is in communication with the cylinder by means of a suitable
passage or port. The admission pipe is combined with a slit sleeve which is
capable of turning slightly and which is tightened upon the pipe itself, a rectan-
gular orifice enables the admission of a greater or less quantity of pure air, and
consequently the production of a more or less richly carburetted air mixture,
thereby increasing or diminishing the explosions and the power of the motor.
The ribbed discharge chest is in communication with the cylinder by means
of a suitable passage which is opposite the admission passage. The valve which
it contains is actuated by means of a special device as follows. The said valve
is provided with a rod the prolongation of which is guided in the chest attached
to the casing previously mentioned and is furnished with a roller bearing against
a cam under the influence of a spring. This cam is rigidly connected with a
sleeve passed freely upon a part of the driving shaft; the sleeve is provided with
a groove in which engages a pin which is mounted in a pivot removably arranged

page_text: in the chest. Under the influence of the rotation of the shaft, transmitted to
the sleeve and of the pin, there is imparted to the said sleeve, whilst rotating,
a reciprocating longitudinal motion such that the cam or boss is only presented
every second revolution to the roller of the rod of the exhaust valve. This latter
is consequently lifted only at every second revolution, thereby enabling the
motor to have a four-phase cycle without its being necessary to employ gear-
wheel transmission.
At the extremity of the chest is mounted a support upon which is fixed an
insulated flat spring at which terminates one of the electrical conductors, and
of which the free extremity is provided with a contact piece engaged in an aper-
ture of the said support in such a manner as to project slightly within the chest
in which is formed a corresponding aperture. Contact may be made with this
contact piece by means of a projection of the sleeve which is in electrical com-
munication with the other conductor of electricity by means of the mass of the
motor itself. The contact in question takes place only at each second revolution
owing to the said longitudinal displacement of the sleeve. It will be noticed
that the electrical contacts alternate with the exhaust periods. In order to
accelerate the moment of ignition, it is only necessary to slightly loosen the
support by causing it to rotate upon the bearing part of the chest, the, apertures
of the said support and of the said chest through which the contact passes being
sufficiently large for the contact to invariably take place under favorable con-
ditions.
Dated this 21st day of Tu 1900
Dated this 21st dos
day
of Tune 1900
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C.,
Agents for the Applicant.
An Improved Gas Engine or Motor for Propelling Cycles and other
purposes.
I. HENRY HARRIS LAKE, of the Firm of Haseltine, Lake & Co., Patent Agents,
45, Southampton Buildings, in the County of Middlesex, 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 an improved motor designed for driving motor cycles
and for other purposes and the object is to so improve the motor as to simplity
the construction and to render the working thereof more reliable. The improve-
ments will be readily understood by reference to the accompanying drawings, in
which
Figure 1 is a vertical section of the improved motor.
Figure 2 is a horizontal section on line A, A, of Figure 1.
Figures 3, 4, 5, 6 and 7 are vertical sections taken on the lines B-B, C-C,
D-D, E-E and FF of Figure 1 respectively.
Figures 8 and 9 are detail views of the cam sleeve hereinafter referred to.
a is the motor cylinder provided at its exterior with ribs and fitted with
the piston which by the connecting rod d is attached to the cranks e and f keyed
to the portions g and h respectively of the motor shaft. The inverted cylinder
is fitted at top with a cover i on which are the casings and containing the
admission valve 7 and exhaust valve m respectively. The open bottom of the
cylinder leads into a circular drum or casing a closed by the flat or disc-shaped

page_text: cover o and in this drum or casing the cranks e and f revolve. The journal y
of the motor shaft works in bearings mounted in a hub made in one with the
drum n and protruding therefrom in order to transmit the motion. The portion h
of the shaft is mounted in bearings and the first of which is connected to
the cover of the drums while the other is located in a casing s secured by
bolts to the cover o.
The explosive mixture is introduced into the valve casing by a pipe t and
the valve in the casing delivers the mixture, by suction of the motor, into a
chamber provided with an electric igniter not shown on the draxing and which
would be fixed onto the socket v. The admission valve located in the upper part
of the casing is controlled by a spring w and the igniter is situated immediately
below it. The chamber u communicates with the cylinder a by a passage. The
before mentioned pipe is fitted with a split ring y capable of a slight rotary
movement on the pipe although otherwise tightly fitting it. An opening admits
more or less pure air and consequently the mixture may be made more or less
rich in carburetted air by which the force of the explosions and the power of the
motor can be altered.
The exhaust valve casing k provided with wings communicates with the
cylinder a by a passage 1 opposite to the passage a. The valve m in the interior
of said casing is operated by special means as follows:
The valve is provided with a valve rod 2 connected to another rod
arranged
in alignment with it and guided at 4 in the casings and ending in a tappet
designed to work against a cam 6 under the action of a spring 7. The cam 6
is integral with a sleeve sliding freely on the part h of the motor shaft that is
to say it can be moved longitudinally on the shaft while being at the same time
rotated therewith by means of a long feather 9.
The sleeve 8 is provided with a groove; the form of which is shown in elevation
in Figure 8 and in development in Figure 9.
The bolt or pin 10 is mounted in a slide 11 adjusted in a slide way of the box s
and connected with the forked arm 18 which is connected with the groove of the
governor sleeve 15 as hereinafter described. This being born in mind, we will
assume the bolt 10 to be fixed, that is to say, not submitted to the influence c
the governor, and engaged in the groove of the sleeve 8. Under these conditions,
and in view of the fact that the driving shaft rotates the said sleeve 8 it will be
understood that the bolt displaces the sleeve longitudinally upon the shaft, and
that this displacement is produced in the opposite direction at each revolution
of the shaft, but with a stoppage between each longitudinal displacement. It
thus follows that the cam 6 is brought, at every second revolution of the driving
shaft, opposite the finger 5 of the rods - of the exhaust valve me and remains
there during
a half revolution of the shaft, during which time the cam acts upon
the said exhaust valve. During this time also, the cam 20 hereinafter described
has released the spring of the ignition contact. As a further result the cam 20
is brought, every second revolution of the driving shaft, opposite to the ignition
contact spring, and remains there during half a revolution of the shaft, during
which time this cam acts upon the said spring. It is therefore apparent that the
two cams, 6 and 20, act alternately, and that without other transmission than
the sleeve 8.
It should however be noticed that the bolt. 10 is not fixed, but is submitted
to the influence of the governor. Under these conditions, when the motor races,
the governor balls separate and displace the sleeve 15 which latter displaces the
bolt 10. This latter alters the position of the sleeves 8 by an amount slightly
exceeding the thickness of the finger 5, and this whilst continuing to impart
to the said sleeve 8 the longitudinal displacement above referred to with a
stoppage at the extremity of each displacement. The alteration in the relative
position of the sleeve S results in rendering the cams 6 and 20 inoperative in
this sense that they can no longer be brought opposite respectively to the finger 5

page_text: and to the contact spring. This new position of the sleeve is maintained until
the motor has resumed the normal speed.
In short, the bolt 10 fulfills two functions. The first, when it is considered
as a fixed part, consists in imparting an alternating longitudinal movement to
the sleeve 8 with stoppage at the extremity of each displacement, in order to
nable the cams 6 and 20 to act alternately for the exhaust and ignition, and;
the second, when the said bolt is submitted to the influence of the governor,
consists in altering the relative position of the sleeve 8 in order that the cams 6
and 20 of this latter may be without effect upon the exhaust and upon the igni-
tion;
in this latter case, the longitudinal displacement above referred to is still
produced, but is without effect.
Upon the outer extremity of the casings is mounted a cap 12 enclosing the
ball governor 13, the hub 14 of which is secured by a pin to the end of the part
of the driving shaft. This governor is connected in the ordinary manner with
the sleeve 15 passed freely upon the part of the shaft, and which, by means
of a lever having two arms 16 and 17 and of a connecting rod 18 capable of
adjustment as regards its length, is connected to the said sliding block 11, as
aforesaid,
On the casings is mounted a ring 19 fitted with an electric contact and designed
to close, at the required time, an electric circuit in connection with the ignitor
located in the chamber already mentioned. This device is of the ordinary kind
and it is operated by a swelling or cam 20 Figures 15 and 8 provided on the
sleeve 8. The ring 19 may be adjusted on the casing s so as to modify the
moment of closing the circuit and thereby cause the ignition to take place with
more or less advance."
From what has been said it follows that the valve m only lifts at every second
stroke and thereby permits the motor to perform a four stroke cycle without requir
ing gearing by wheels. Again by reason of the said endwise motion of the
sleeve 8 the electric contact takes place at every two revolutions only, but owing
to the position and action of the cams 6 and 20 the times of making contact
alternate with the periods of exhaust.
Ordinarily the projection 10 is stationary but, owing to its connection with
the governor 13 following the irregularities of working of the motor, it may
alter its position and thus impart an additional movement to the sleeve 8. Under
these conditions the cams 6 and 20 on the sleeve act differently upon the exhaust
valve m and upon the electric contact device until the motor has resumed its
normal speed.
is
The cylinder a besides carrying the admission and exhaust valves and
provided with a third valve 21 being the anticipatory exhaust valve in communi-
cation with the interior of the cylinder by an opening 22 located directly above
the piston c when the latter is in its lowest position. The valve casing 21 contains
a valve body 23 normally held upon its seat by a spring 24. The anticipatory
exhaust valve has for its object to allow a certain quantity of the explosion gases
to escape from the cylinder a when the piston e reaches the end of its out stroke,
in other words when the piston uncovers the opening 22 the gas pressure is
capable of counteracting the spring 24 and of lifting the valve 23. In this manner
the explosion gases in the cylinder a become suitably cooled and in this state
reach the real exhaust valve m at the back stroke of the piston. The object of
this arrangement is to cool the explosion gases and so protect the valve m froni
the corroding action of this gas. This enables the valve to be kept much longer
in good working condition and perfectly clean.
It has already been mentioned that the motor shaft is formed with two parts
and integral with the cranks e and f. the part g of which is provided with a
trunnion 25 engaging in the socket 26 of the crank f to which it is secured by
a screw 27; the arrangement being for the trunnion 25 and socket 26 jointly
to form the crank pin on which works the eye of the connecting rod d.

page_text: Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed, as communicated to
me by my foreign correspondent, I declare that what I claim is:-
1. A hydrocarbon four cycle explosion motor for driving motor cycles and for
other purposes, characterized in its general arrangement by the arrangement of
a sleeve 8, on the motor shaft, provided with grooves in which engages a flat
projection or pin and which is adapted to slide endwise while revolving with the
shaft, the said sleeve being formed with the cam for operating the exhaust valve
together with another cam for effecting the ignition but arranged in such a
manner as to cause the exhaust and the ignition to take place in successive order
at each second revolution of the motor shaft without the use of gearing by
wheels by the arrangement of an anticipatory exhaust valve for exhausting
a portion of the explosion gases in the cylinder and so cooling the cylinder as
well as the ordinary exhaust valve; and finally by the arrangement of motor
shaft in form of ordinary cranks and crank pins in lieu of an ordinary cranked
shaft but permitting the connecting rod to be mounted without the use of a
strap and without brasses and thereby reduce the size of the enclosing casing
or drum.
2. In the motor claimed in Claim 1, the combination with the grooved sleeve 8
provided with the two cams for effecting the exhaust and the ignition respectively,
of a governor keyed to the motor shaft and so connected to the said sleeve as to
impart to it a supplementary endwise motion of more or less magnitude and thus
regulate the speed of the motor, substantially as specified.
3. In the motor claimed in Claim 1 the peculiar valve arrangements especially
that of the ignition valve which is located vertically below and in the centre of
the gas inlet and at the same time is so situated as to be well protected against
accidents by the motor cylinder.
4. In the motor claimed in Claim 1 the combination with the admission pipe
for the carburetted air or explosive mixture, of a split ring with opening for the
purpose of admitting into the said pipe a more or less large proportion of pure
air and thus modify at will the quality of the mixture and consequently the
motive power.
Dated this 18th day of March 1899
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C.,
Agents for the Applicant.