Improvements in or connected with the Driving-gear of Auto-motor Vehicles.
Year: 1897

page_text: Date of Application, 10th Feb., 1897-Accepted, 22nd May, 1897
COMPLETE SPECIFICATION.
Improvements in or connected with the Driving-gear of Auto-motor
Vehicles.
I, PAUL AURIOL of 23 Rue Godot-du-Maroi, 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:-.
This invention relates to a combination of means for the transmission of motive
power to the wheels of auto-motor vehicles.
1 will now describe the invention with reference to the accompanying drawings
in which :-
Fig. 1 shows the shaft or driving axle, with the whole of the power transmitting
mechanism.
Fig. 2 is a plan view of Fig. 1.
Fig. 3 is a section along the line 1-2 in Fig. 1.
Fig. 4 shows an arrangement for controlling the action of the rollers by means
of levers.
A is a smooth or fluted disc or platform which is pressed against two rollers G, G¹
these leing covered with leather or other suitable material. Bis another disc or
platform cf equal diameter with A, to which it is joined by a spindle frame T which
engages on the one side with the platform axle A by means of a friction rod
arrangement and is furnished on the other side with a rod S which passes through
the axle of the disc B. Springs of some kind R² are inserted near the end of the
shaft or axle belonging to the disc B, and a nut r screws on to the rod S.. The
two discs A, B, are thus constantly kept screwed up against the rollers G, G¹ without
exercising any injurious pressure on their supports.
On the rod S is fixed a tappet or catch C which comes in contact with the
piece C¹ and prevents the rod S from turning, whilst allowing it a longitudinal
displacement. This rod is fixed at one end to the spindle frame T.
His a shaft which serves as a driving shaft; it is keyed or wedged on one side
to a wheel and on the other side engages with the nave or boss of the other
wheel, with which it is connected by differential gearings D, E, F, placed in the
nave or boss of the wheel. The gearing D E F is fixed in or to the vehicle
wheel, the wheel E is mounted on a spindle at right angles to the sleeve I and the
bevel wheel F is mounted on the shaft H. The object of these differential gearings
is to allow the wheels to pass when travelling on curves.
I is a hollow shaft drawn over the shaft H. It carries an arm or branch J, J on
which are fixed the subordinate wheels K, K¹. I also carries another arm or branch
on which are fixed the subordinate wheels E, E¹.
L, L' are two bollow-shafts drawn over the shaft I on which they can rotate
with smooth friction by means of ball bearings as illustrated in the drawing
at Z, Z. Each of these shafts L, L' carries the wheels R, R' which engage with
the subordinate wheel K, K¹.
G, G¹are friction rollers. These rollers are able to glide longitudinally on the
hollow shafts L, L and to impart their rotary motion to them, through the action
of the keys or pegs a with which they are furnished.
N, N' are collars mounted with rods on the bosses of the rollers.

page_text: O is a cross bar with two arms which are fixed new 'collars N, N'. This
cross bar can be pushed to the right or to the left ..us of a screw P Figs. 1, 2, 3,
or by means of levers as in Fig. 4.
Being so pushed to the right or to the left, it pushes simultaneously the two
rollers either to the right or to the left; that is to say, that when one roller
approaches the centre the other moves away from it. The screw P may be operated
by any mechanism whatever.
METHOD OF WORKING..
The rollers G, G' being in the position shown in Fig. 1, if the motor disc A be
rotated, it turns the roller G in the direction of the arrow b, and the disc B is
turned in the direction of the arrow c, these two rollers transmit their motion to
the gearings K, K' which operate the sleeve I, this last transmits motion to the
shaft H, at the other end of which the other wheel of the vehicle is attached.
It is evident that instead of transmitting the motion direct to the wheels of the
vehicle, geared wheels or pulleys might be arranged, which would transmit the
motion to the wheels of the vehicle by means of bands, chains, or the like.
The driving mechanism could thus be put in any place or position on the vehicle.
For altering the rate of speed it is enough to turn the screw P in one direction
for bringing one roller near to the centre whilst the other moves away from it.
The rate of speed will thus be diminished, until reduced to nil, that is to say,
until a stoppage is effected, which will result when the two rollers are at an
equal distance from the centre. In order to go backwards it is only necessary
to continue bringing the same roller near to the centre and moving the other further
away from it.
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
claim is:
1. The combination with a transmitting mechanism composed of a disc A,
a disc B, two rollers G, G¹, wheels R, R' and subordinate pinions K, K₁ of the
hollow shaft I at the end of which are mounted the subordinate pinions E, E' which
gear with the wheels F, D one of which F is wedged or keyed on the shaft H and
the other, D, near the wheel of the vehicle, as herein described and set forth.
2. The combination with the discs A and B of a mechanism composed of the
spindle frame T, the rod S and springs R² enabling all reaction on the shafts and
frame to be overcome, and effecting the tightening of the two discs against the
rollers G, G¹, as herein described and set forth.
3. In combination with the rollers G, G¹ a mechanism composed of the screw P
acting on the two arms or cross piece O which by means of the collars with ball
bearings attachments N, N' causes the rollers G, G¹ to approach or to move away
from the centre, which cross piece can be operated equally well by levers as by the
screw P, as herein described and set forth.
Dated this 10th day of February 1897.
S. S. BROMHEAD,
97 Newgate Street, London, E.C., Agent for Applicant.