Improvements in or relating to Motor Propulsion for Cycles.
Year: 1898

page_text: PROVISIONAL SPECIFICATION.
Improvements in or relating to Motor Propulsion for Cycles.
I, EDUARD BÜTIKOFER, Manager, of Biel, Seevorstadt, in the Republic of
Switzerland, do hereby declare the nature of this invention to be as follows:-
This invention relates to an improved motor cycle in which the cylinder of
the motor forms simultaneously the fixed axle round which the corresponding
wheel which it operates turns, whereby the arrangement of the motor is compact
and central and a short transmission of the motor power to the wheel is obtained.
The motor cylinder which is connected fixedly with the cycle framing, forms
simultaneously the fixed axle of the back wheel on which axle the same is seated
in a turnable manner the motor power is transferred from the crank shaft
seated on a prolongation of the cylinder and also having bearings on the cycle
frame, to the back wheel by means of toothed wheels also on the back wheel
there is also provided a chain wheel, by which the back wheel can be driven by
means of a chain from the pedal crank shaft.
Dated
hi at dav
HERBERT HADDAN & Co.,
Agents to Applicant.
Improvements in or relating to Motor Propulsion for Cycles.
I, EDUARD BÜTIKOFER, Manager, of Biel, Seevorstadt, in the Republic of
Switzerland, 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 cycle in which the cylinder of
the motor forms simultaneously the fixed axle round which the corresponding
wheel which it operates turns, whereby the arrangement of the motor is compact
and central and a short transmission of the motor power to the wheel is obtained.
The motor cylinder which is connected fixedly with the cycle framing, forms
simultaneously the fixed axle of the back wheel on which axle the same is seated
in a turnable manner. The motor power is transferred from the crank shaft
seated on a prolongation of the cylinder and also having bearings on the cycle
frame, to the back wheel by means of toothed wheels. On the back wheel there
is also provided a chain wheel, by which the back wheel can be driven by means
of a chain from the pedal crank shaft.

page_text: In the annexed drawing Figs. 1 and 2 show the invention, the motor being
supposed to be a an "Otto cycle motor with one cylinder for combustible
vapour and the cycle a bicycle. The motor cylinder a is fixedly connected with
the cycle framing in any suitable manner forming simultaneously the fixed axle
of the back wheel b, on which axle the same revolves on ball bearings.
In order that cylinder a can be rendered cool by the air, it is provided on its
circumference with cooling ribs c, which can be raked by the air entering through
the perforations in the hub d of the wheel b.
The motor power is transferred from the crank shaft e seat-journalled on a
prolongation of the cylinder a to the back wheel by means of the toothed
wheels f and f' and on the toothed wheel f¹ a chain wheel 9 is provided by means
of which the back wheel b can be driven from the pedal crank shaft by means of a
chain has shown in Fig. 1.
On the side opposite the crank shaft e of the back wheel b a disk i is provided
upon the hub d having in it a cam groove by which the escape valve k can be
worked; is the feeding valve and is connected in a suitable manner with the
reservoir for the liquid hydro carbon.
The ignition may be effected electrically or otherwise in any known manner.
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:--
An improved motor arrangement for cycles whereby the cylinder of the motor
forms the fixed axle round which the corresponding wheel which it operates turns.
Dated this 18th day of November 1898.
HERBERT HADDAN & Co.,
Agents to Applicant,
18, Buckingham Street, Strand, W.C., London.
HERBERT HADDAN & Co.,
Agents to Applicant,
18, Buckingham Street, Strand, W.C., London.