Improvements in Motor Carriages for Common Roads.
Year: 1896

page_text: Date of Application, 30th May, 1895.
Complete Specification Left, 24th Feb., 1897-Accepted, 27th Mar., 1997
PROVISIONAL SPECIFICATION.
Improvements in Motor Carriages for Common Roads.
I, MAURICE LE BLANT, of 21 Boulevard Poissonnière Paris, in the Republic
of France, Engineer, do hereby declare the nature of this invention to be as
follows:
4
My invention consists in providing motor carriages with a number of driving
or bearing wheels, in such a manner that the axes of rotation of all these
wheels may be in the vertical plane crossing the axis of rotation of the ordinary
wheels.
The advantages arising therefrom are as follows:
As each wheel can hear the maximum weight allowed by the administration
of public roads, the adherence is increased and the ascent of inclines is greatly
facilitated.
From another point of view this arrangement, for a given weight, admits of the
latter being distributed over a greater number of points; thus reducing the weight
borne by each wheel, and consequently preventing damage to the road, and
diminishing the cost of keeping it in repair.
Finally, this means of spreading a considerable weight over many points renders
it possible to use pneumatic tyres where with the ordinary construction of heavy
vehicles they could not be employed.
According to one form or arrangement I provide four driving wheels fixed to
two axles, the axis of which are in the same vertical plane. The two axles each
carry two driving wheels and each axle is provided with a differential gear, the
case or barrel of which is provided with a toothed ring; this apparatus is public
property and I need not explain it at greater length.
A differential wheel is attached to a shaft which may be the motor shaft or
which may receive its motion from such motor shaft in any suitable way; the said
motor shaft is provided with chain or sprocket wheels which are connected by
means of chains with the toothed rings on the aforesaid axles.
In another arrangement in which 8 driving wheels, are provided, the connection
of the shafts or spindles of the differential gear with the axles and driving wheels
is effected by means of a combination of other differential gear.
In this case four axles are provided each carrying two wheels and a differential
gear provided with a toothed ring. A differential gear is provided on the motor
shaft or receives its movement from the said motor shaft, it is provided with
toothed or chain wheels. I provide a pair of intermediate shafts each having a
differential gear which receives its movement from the toothed or chain wheels on
the motor shaft. The said toothed or chain wheels operate the intermediate shafts
by means of chains and chain wheels.
Again, the intermediate shafts by means of their chain wheels and chains which
engage the chain wheels on the aforesaid three axles, effect the operation of the
driving axles, or, if the axles are already revolving, the operating of the driving
wheels.
I wish it to be understood that I have described the two preceding arrangements,
simply for the purpose of rendering the principle of my invention intelligible but
I do not confine myself to the use of these arrangements. I have described a
:

page_text: system of chains but it is evident that I can use a direct train of toothel wheels
or any other mode of transmission without in any way altering the principle of my
invention. In the same way I have described the use of differential gears, but
I can dispense with them by arranging some of the wheels loose on their axles in
the well known manner. I can also if necessary use simultaneously loose wheels
for some of the shafts and differential gears for others, in the same vehicle.
Dated this 30th day of May 1896.
HASELTINE, LAKE & Co.,
45 Southampton Buildings, London, W.C., Agents for the Applicant.
Improvements in Motor Carriages for Common Roads.
I, MAURICE LE BLANT, of 21 Boulevard Poissonniere Paris, 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 :-
My invention consists in providing motor carriages with a number of driving or
bearing wheels in such a manner that the axes of rotation of all these wheels may
be in the vertical plane of the axis of rotation of the ordinary wheels.
The advantages arising therefrom:n are as follows:
As each wheel can bear the maximum weight allowed by the administration
of public roads, the adherence is increased and the ascent of inclines is greatly
facilitated.
From another point of view this arrangement, for a given weight, admits of the
latter being distributed over a greater number of points; thus reducing the weight
borne by each wheel, and consequently preventing damage to the road, and
diminishing the cost of keeping it in repair.
Finally, this means of spreading a considerable weight over many points renders
it' possible to use pneumatic tyres where with the ordinary construction of heavy
vehicles they could not be employed.
In the accompanying drawing
Figure 1 represents a diagrammatic plan of an arrangement with four motor
wheels fixed to two axles the axes of which are in the same vertical plane.
Figure 2 represents a similar plan but with 8 driving wheels.
In the arrangement having four driving wheels xx represents the longitudinal
axis of the vehicle, and A A the axles carrying the driving wheels a, a, a, a.
Each axle is provided with a differential system of wheels B, the case or barrel
of which is provided with a toothed ring, b; this apparatus is public property and
I need not explain it at greater length. D represents a differential wheel attached
to a shaft C, which may be the motor shaft or which may receive its motion from
such motor shaft in any suitable way; the said motor shaft is provided with chain
or sprocket wheels cc which are connected by means of chains with the toothed
rings b b on the aforesaid axles A.
In the arrangement shown in Figure 2 in which 8 driving wheels are provided,
the connection of the shafts or spindles of the differential gear with the axles
and driving wheels is effected by means of a combination of other differential
wheels.
A represent axles each carrying two wheels a and a differential gear B provided
with a toothed ring b.
Drepresents a "differential" gear provided on the motor shaft C and receives
its movement from the said motor shaft; it is provided with toothed or chain
hoola

page_text: EE represent intermediate shafts, each being provided with a "differential"
gear F which receives its movement from the corresponding toothed or chain
wheels c on the motor shaft.
The said toothed or chain wheels c c operate the intermediate shafts E by means.
of chains and chain wheels ff.
Again, the intermediate shafts E E by means of their chain wheels e e e e and.
chains which engage the chain wheels 6 on the aforesaid three axles A effect the
operation of the driving axles, or, if the axles are already revolving, the operation
of the driving wheels.
I wish it to be understood that I have described the two preceding arrangements,.
simply for the purpose of rendering the principle of my invention intelligible but
I do not confine myself to the use of these arrangements. I have described a
system of chains but it is evident that I can use a direct train of toothed wheels
or any other mode of transmission without in any way altering the principle of my
invention. In the same way I have described the use of differential gears, but
I can dispense with them by arranging some of the wheels loose on their axles in
the well known manuer. I can also if necessary use simultaneously loose wheels.
for some of the shafts and differential gears for others, in the same vehicle.
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 :-
(1.) Providing motor carriages for common roads with a number of driving
or bearing wheels, fixed independently of each other in such a manner that the
axes of rotation of all the wheels are in the vertical plane of the axis of rotation of
the ordinary driving wheels.
(2.) The general arrangements above described' and illustrated in the drawings.
Dated this 24th day of February 1897.
HASELTINE, LAKE & Co.,
45 Southampton Buildings, London, W.C., Agents for the Applicant.