Improvements in and relating to Transmission Gear, applicable more especially to Motor Cars.
Year: 1898

page_text: Date of Application, 26th Feb., 1898
Complete Specification Left, 23rd Nov., 1898-Accepted, 7th Jan., 1899
Improvements in and relating to Transmission Gear, applicable more
especially to Motor Cars.
A communication from CAMILLE SENG and JOSEPH HENRY, both of Romilly-on-
Seine, in the Republic of France.
I, ARTHUR FREEMORE SPOONER, of 323, High Holborn, in the County of
London, Chartered Patent Agent, do hereby declare the nature of this invention
to be as follows:-
This invention relates to transmission gear applicable more especially to
motor cars and comprises the improvements hereinafter set forth.
By this invention am enabled to transmit the movement or motion from the
motor to the driving wheels in an efficient manner without employing chains,
bands or belts such as are now frequently used, and at the same time to mount
the said wheels at such an angle as to ensure a proper rolling motion.
According to this invention I provide a main horizontal shaft or axle, sur-
mounted by two inclined supplementary axles upon the outer ends of which
latter are keyed or secured the driving wheels, and which supplementary axles
are supported in ball bearings fixed to the said main axle.
These supplementary axles have at their inner ends bevel or angle toothed
wheels which gear or mesh with corresponding bevel or angle toothed wheels of
a differential gearing. This differential gearing is operated by a pinion on a
square shaft mounted in the vehicle frame parallel to the axle, and to which
shaft rotary motion is imparted through the medium of a suitable train of toothed
gearing, which is free to move laterally upon the said square shaft, so that it
can be thrown in or out of gear with other gearing, hereinafter described, by
means of a forked lever, in order to alter the speed, or to stop the driving
mechanism.
The gearing wheels for full speed can be meshed or engaged with one or other
of two toothed wheels keyed or fixed upon a suitable shaft parallel to the axle,
and the gear wheels of the slow speed can likewise be meshed or engaged with
one or other of two toothed wheels keyed or fixed upon the same shaft. Centrally
upon this shaft, which is rotatably supported in suitable bearings in the vehicle
frame, are mounted two bevel or mitre wheels which can be locked or coupled to
the shaft one after the other, so as to cause the said shaft to rotate therewith, by
means of an engaging sleeve or collar and lever located between the said bevel
or mitre wheels, or by any suitable clutch, or coupling device, thereby ensuring
the forward or backward movement of the vehicle.
The above mentioned bevel or mitre wheels gear with, and are rotated in
obverse directions by, a third bevel or mitre wheel keyed or secured upon a longi-
tudinal or other motion transmission shaft worked by the motor.
The motor which may be of any suitable description, is mounted upon the
frame of the vehicle as well as all the herein before mentioned train of gearing.

page_text: This frame is suspended and jointed at one extremity to the main axle of the
driving wheels which carries the differential gearing, in such a manner as to
allow of the teeth of the gear wheels remaining constantly in gear whatever may
be the position assumed by the frame.
The said frame is supported, moreover, at the front or other, extremity upon a
spring which rests upon the axle of the running or road wheels.
Suitable plates or lugs formed or attached to the axles are also provided to
receive the suspension springs of the carriage body.
Doted this Ofth day of Wahnum 1900
Improvements in and relating to Transmission Gear, applicable more
especially to Motor Cars.
A communication from CAMILLE SENG and JOSEPH HENRY, both of Romilly-on-
Seine, in the Republic of France.
I
I, ARTHUR FREEMORE SPOONER, of 323, High Holborn, in the County of
London, Chartered Patent Agent, 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 transmission gear applicable more especially to
motor cars and comprises the improvements hereinafter set forth.
By this invention I am enabled to transmit the movement or motion from the
motor to the driving wheels in an efficient manner without employing chains,
bands or belts such as are now frequently used, and at the same time to mount
the said wheels at such an angle as to ensure a proper rolling motion.
In the accompanying drawings,
Figure 1 shows in elevation the frame of a motor carriage with the invention
applied thereto,
Figure 2 is a plan view thereof,
Figure 3 is a vertical section on the line X-Y Figure 1 showing the trans-
mission gear in elevation, and
Figure 4 is a front view of the carriage frame.
According to this invention the transmission gear comprises a main horizontal
shaft or axle A surmounted by two inclined supplementary axles B, B₁ upon
the outer ends of which latter are keyed or secured the driving wheels R, and
which supplementary axles B, B' are supported in ball bearings C, C and D, D¹.
These supplementary axles B, B¹ have at their inner ends bevel or angle
toothed wheels E, E which gear or mesh with corresponding bevel or angle
toothed wheels F, F¹ of a differential gearing G. This differential gearing is
operated by a pinion H¹ (Figure 2) on a square shaft H mounted in the vehicle
frame parallel to the axle, and to which shaft rotary motion is imparted through
the medium of a suitable train of toothed gearing I, I or J, J¹ movable laterally
upon the said square shaft H so that it can be thrown in or out of gear with other
gearing, hereinafter described, by means of a forked lever, in order to alter the
speed, or to stop the driving mechanism.
The gearing wheels. J, J₁ for full speed can be meshed or engaged with one.or
other of two toothed wheels L, or L¹ keyed or fixed upon a suitable shaft. M
parallel to the axle, and the gear wheels I, I' of the slow speed can likewise be
meshed or engaged with one or other of two toothed wheels K or K¹ keyed or

page_text: fixed upon the same shaft. Centrally upon this shaft, which is rotatably sup-
ported in suitable bearings in the vehicle frame, are mounted two bevel or mitre
wheels N, N¹ either of which can at will be locked or coupled to the shaft M so
as to cause the said shaft to rotate therewith, by means of an engaging sleeve or
collar and lever located between the said bevel or mitre wheels, or by any suit-
able clutch, or coupling device, thereby ensuring the forward or backward move-
ment of the vehicle.
The pinions N, N1 gear with, and are rotated in obverse directions by, a third
bevel or mitre wheel №2 keyed or secured upon a longitudinal or other motion
transmission shaft O worked by the motor.
The motor, which may be of any suitable description, is mounted upon the
frame P, P¹ of the vehicle as well as all the hereinbefore mentioned train of
gearing. This frame is suspended and jointed at one extremity to the main
axle A which carries the differential gearing G in such a manner as to allow of
the teeth of the gear wheels remaining constantly in gear whatever may be the
inclination of the carriage in relation to the horizontal.
The said frame P, PI is supported at the front or other extremity upon a
spring S (Figure 4) which rests upon the axle Q of the running or road
wheels R¹.
Suitable plates or lugs T, T¹ and U, U¹ formed or attached to the axles are
provided for the reception of the suspension springs of the carriage body.
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 correspondents, I declare that what I claim is :-
1. In a transmission gear for motor-cars and the like, mounting the driving
wheels on separate axles inclined to the horizontal each axle being provided with
a toothed wheel engaging with a differential gear which is mounted on a hori-
zontal shaft located under the wheel axles, the said differential gear being
actuated by a multiple speed gear operated by the motor substantially as set
forth.
2. A chainless gear for transmitting the movement of the motor to the driving
wheels of a motor car or like vehicle comprising two wheel axles inclined to the
horizontal and each provided with a toothed wheel engaging with a differential
gear which is mounted on a horizontal shaft placed under the wheel axles, the
said differential gear being actuated by a multiple speed gear, in combination
with a motor carriage which is suspended and pivoted on the said horizontal
shaft whereby contact is maintained between the engaging teeth whatever may
be the inclination of the carriage in relation to the horizontal substantially as
set forth.
3. The transmission gear constructed substantially as described and illustrated
in the accompanying drawings.