Improvements in and relating to Motor Suspension for Electrically Driven Vehicles.
Year: 1899

page_text: Improvements in and relating to Motor Suspension for Electrically
Driven Vehicles.
A communication from abroad by THEODOR STORT, of Berlin, in the Empire
of Germany, Engineer.
I, ALFRED GEORGE BROOKES, of 55 and 56, Chancery Lane, in the County of
London, Chartered Patent Agent, do hereby declare the nature of this invention
to be as follows:-
Hitherto the mechanism for driving vehicles of this class has always been
carried out as follows:-The motor was located next to the driving wheel-axle,
which it was made to operate direct by toothed gearing; and by reason of this
mode of construction it has been found necessary to suspend the motor so that it
should be as little as possible affected by the shocks and vibration unavoidably
occurring during the journey without, however, interfering with the reliable
engagement of the gear wheels.
Motors for self propelling vehicles, with a view to reducing their weight as
much as possible, are generally built for a somewhat considerable number of
revolutions; hence, as the diameters of the driven wheels of the vehicle are
comparatively large, a double spur-wheel transmission-gearing,--which necessarily
includes an intermediate shaft.-has to be provided.
Now the following is a description of a suspension device for motors, adapted to
prevent any shocks, or jars, from being transmitted to the motor of a vehicle,
while at the same time it wholly or partly relieves the rear axle from the weight
of such motor.
A frame is made to swing about the wheel-axle to be driven: this frame
carrying the intermediate shaft and being rigidly connected with the motor case,
and the amplitude or range of oscillation of such frame being limited by springs
suspended from the underframe. Inasmuch, however, as it is generally desirable.
where motor cars are used, that each of the two driving wheels mounted upon an
axle of the car, should be operated independently of each other, so that the two
wheels may pass over curves at unequal speeds,-two motors may be arranged
in juxtaposition. and co-axially, and connected together by a rigid intermediate
piece or joint magnet case (common to both) in such a manner, that in so far as
suspension is concerned, their action is the same as would be that of a single
motor, they being rigidly connected to the common frame oscillating about the
As in the single motor arrange-
wheel-axle and carrying the intermediate shaft.
ments, the range of oscillation of this frame is here also limited by springs sus-
pended in the under-frame.
In order to ensure the same effect of suspension, whether one or two motors be
used, the magnet case or cases. may, themselves, do duty for a frame. To this
end their bodies should be cast with brackets, resting in the wheel axle on one
side and supporting the bearings for the intermediate shaft, while towards the

page_text: opposite side they would take the shape of spring-pockets, for the springs to
engage in, to limit the vibrations of the frame.
The suspension described above may further be modified by so arranging the
motor or motors that, instead of rigidly connecting with the frame swinging on
the wheel-axle, they shall be movable relatively to such frame; the motors being,
with this object, revolvably supported in the said frame with their journal-necks
outwardly turned to the proper shape, (in a lathe or the like), so that the motor
cases may revolve freely about their own axes, but for certain springs, adapted
to engage with projections formed on the casings, and thereby resisting such
rotation.
Dated the 2nd low of Manal 1000
WM. BROOKES & SON.
55/50, Chancery Lane, London,
Agents for the Applicant,
Improvements in and relating to Motor Suspension for Electrically
Driven Vehicles.
I, ALFRED GEORGE BROOKES, of 55 and 56, Chancery Lane, in the County of
London, Chartered Patent Agent, do hereby declare the nature of this invention
(a communication from abroad by Theodor Stort, of Berlin, in the Empire of
Germany, Engineer). and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement:-
Hitherto the mechanism for driving vehicles of this class has always been
carried out as follows:
The motor was located next to the driving wheel-axle, which it was made to
operate directly by toothed gearing; and by reason of this mode of construction
it has been found necessary to suspend the motor so that it should be as little
as possible affected by the shocks and vibration unavoidably occuring during the
journey without, however, interfering with the reliable engagement of the gear
wheels.
Motors for selfpropelling vehicles, with a view to reducing their weight as
much as possible, are generally built for a somewhat considerable number of
revolutions, hence, as the diameters of the driven wheels of the vehicle are com-
paratively large, a double spur-wheel transmission gearing, which necessarily
includes an intermediate shaft, has to be provided.
Now the following is a description of a suspension device for motors, adapted to
prevent any shocks, or jars, from being transmitted to the motor of a vehicle,
while at the same time it wholly or partly releases the rear axle from the weight
of such a motor.
In the drawings. Figs. 1 and 1* show by side view and plan respectively, the
invention arranged with but one motor. Similar arrangements are shown by
Figs. 2 and 2 and 3, and 3, Figs. 2 and 2* illustrating by side view and plan
respectively a modification in arrangement of the motors, the cases of which are
mechanically connected. Figs. 3 and 3 show by side view and plan respectively
another modification, wherein a special traverse is provided for. A frame a
is made to swing about the wheel-axle b to be driven, this frame carrying the
intermediate shaft and is rigidly connected to the motor case d, and the ampli-
tude or range of oscillation of such frame being limited by springs e suspended
from the lower-frame or truck f. Inasmuch, however, as it is generally desirable.
where the motor cars are used, that each of the two driving wheels
mounted

page_text: upon an axle 6 of the car should be operated independently of each other, so
that the two wheels may pass over curves at unequal speeds, two motors may be
arranged in juxta-position, and coaxially, and connected together by a rigid
intermediate piece or joint magnet case d common to both in such a manner, that
in so far as suspension is concerned, their action is the same as would be that of
a single motor, they being rigidly connected to the common frame a oscillating
about the wheel-axle and carrying the intermediate shaft c. As in the single
motor arrangement, the range of oscillation of this frame is here also limited by
springs e suspended in the lower-frame.
In order to ensure the same effect of suspension, whether one or two motors
be used, the magnet case or cases d, may themselves do duty for a frame. To
this end, their bodies should be cast with brackets i, resting on the wheel axle b
on one side and supporting the bearings for the intermediate shaft c, while towards
the opposite side, they would take the shape of spring-pockets, for the springs to
engage in, to limit the vibrations of the frame.
The suspension described above may further be modified by so arranging the
motor, or motors that, instead of rigidly connecting with the frame a swing-
ing on the wheel-axle b. they shall be movable relatively to such frame, the motors
being, with this object, revolvably supported in the said frame a with their
journal necks outwardly turned to the proper shape in a lathe or the like, so
that the motor cases may revolve freely about their own axes, but for certain
springs e adapted to engage with projections formed on the casings d and
thereby resisting such rotation.
Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be performed, I declare that what I claim is:-
1. A suspension for motors of electric vehicles containing a rigid intermediate
piece swinging on the axle of the car on which intermediate pieces are arranged.
the motor or motors and the bearings or the gear-wheels axles substantially as
described.
2. A modification of the construction according to Claim one with joint magnet
cases for both motors, instead of the intermediate piece, substantially as described.
Dated the 30th day of November 1900
WM. BROOKES & SON,
55 & 56, Chancery Lane, London,
Agents for the Applicant.