Year: 1898

page_text: Date of Application, 1st Dec.,
1898
Complete Specification Left, 30th Aug., 1899-Accepted, 30th Sept., 1899.
I, PAUL DORIGNY, of 28 Rue Lesueur, Paris, in the Republic of France,
Merchant, do hereby declare the nature of this invention to be as follows:-
This invention relates to an improved sociable tricycle of the kind having the
appearance of two bicycles, the frames of which are connected at the front and
a single steering wheel operated by one or other of the cyclists.
Now this invention has for its object to adapt the tricycle, without departing
from the principle employed in its construction, to be driven by a motor whereby
it is converted into a motor-cycle.
To this end I replace the axle of the lower rear stay by a kind of frame com-
posed of tubes and plates bolted to one another, the said frame being designed
on the one hand to support the motor and its accessories and on the other hand
to receive on its ends the hubs of the rear wheels which are connected by
differential gear to permit of the vehicle turning.
The driving shaft which carries the differential gear is connected to the chain
wheels keyed upon the hubs of the rear wheels; it is connected to these latter
by toothed wheels and ratchet gear which enable the tricycle to be driven without
the employment of the motor.
When the latter is in use, the cyclist does not operate the pedals, and the
pawls do not offer any resistance to the movement as they slide over the teeth
of their respective ratchets.
In carrying out the invention each of the bosses of the driving wheels is carried
by two plates placed one on the outside and one on the inside of the arrangement of
the two wheels, the said plates being connected to the rear forks. The hub of
each wheel has screwed to it a ratchet upon the inside of the chain or sprocket
wheel connected to the pedal chain wheel; pawls enable the ratchet to be operated
by the chain wheel when the pedals are actuated but do not enable the chain
wheel to be actuated by the ratchet. A toothed pinion is also screwed upon the
hub; it gears with a second pinion keyed upon an intermediate shaft formed
in two parts and furnished with differential gear of ordinary construction.
The box or case of the differential gear is furnished with teeth in connection,
by a chain, with a pinion carried by the shaft of the motor which may be of any
suitable type. Stays render the rear frame rigid, the said stays being also con-
nected by plates which increase the rigidity. All the bearings are preferably
ball bearings and under the rear seat there may be suspended or hooked a water
container. The parts of the machine can be easily disconnected.
Dated this lat day of December
1900

page_text: 1, PAUL DORIGNY, of 28, Rue Lesueur, Paris, in the Republic of France, Mer-
chant, 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 sociable tricycle of the kind having the
appearance of two bicycles, the frames of which are connected at the front and
a single steering wheel operated by one or other of the cyclists.
Now, this invention has for its object to adapt the tricycle, without departing
from the principle employed in its construction, to be driven by a motor whereby
it is converted into a motor-cycle.
"
To this end I replace the axle of the lower rear stay by a kind of frame com-
posed of tubes and plates bolted to one another, the said frame being designed
on the one hand to support the motor and its accessories and on the other land
to receive on its ends the hubs of the rear wheels which are connected by
differential gear to permit of the vehicle turning. 1.
"
The driving shaft which carries the differential gear is connected to the chain
wheels keyed upon the hubs of the rear wheels; it is connected to these latter
by toothed wheels and ratchet gear which enable the tricycle to be driven without
the employment of the motor.
When the latter is in use, the cyclist does not operate the pedals, and the
pawls do not offer any resistance to the movement as they slide over the teeth
of their respective ratchets.
In the accompanying drawings:-
$
Figure 1 is a side elevation of a convertible sociable tricycle constructed
according to the invention:
Figure 2 is an end view thereof :"
Figure 3 is a plan:
Figure 4 is a sectional elevation of the driving gear, drawn to a larger scale:
Figure 5 is a section on the line 5-5 Figure 4; and
"
Figure 6 is a view shewing the ratchet and 'pawl clutch gear connecting one
of the chain wheels to the driving gear."
Each of the hubs A of the driving wheels B is carried by two plates a, a¹
placed one on the outside and one on the inside of each of the two rear wheels,
the said plates being connected to the rear forks band b. The hub A of each
wheel has screwed to it a ratchet C upon the inside of the chain or sprocket wheel D
connected to the pedal chain wheel E; pawls c (Figure 6) enable the ratchet
to be operated by the chain wheel D when the pedals are actuated but do not
enable the chain wheel D to be actuated by the ratchet C. A toothed pinion F
is also screwed upon the 'hub A; it gears with a second pinion G keyed upon an
intermediate shaft Ḥ formed in two parts and furnished with differential gear K
of ordinary construction..
The box or case of the differential gear is furnished with teeth L in connection,
by a chain with a pinion carried by the shaft of the motor M which may be
of any suitable type, for example a rotary steam motor. Stays N render the
rear frame rigid, the said stays being also connected by plates which increase
the rigidity. All the bearings are preferably ball bearings both for the shaft H
and the hubs.
Under the rear
All these parts
P is a generator adapted to be heated by a lamp placed at R.
seat S there may be suspended or hooked a water container T.
are fixed by clamps or collars bolted to the rear tubes or stays and shewn in
°

page_text: Figures 1 to 3. They can be easily disconnected when it is desired to convert
the machine into a pedal driven tricycle.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is:-
1. The described arrangement for converting a sociable tricycle of the kind
described into a motor cycle consisting in fitting to the rear of the double frame
a frame carrying the driving wheels, the shaft connecting the driving motor to
the said wheels through the medium of differential gear, and by means of suitable
attachments, the motor, the generator and its heating device and the water con-
tainer substantially as herein before described and illustrated.
2. The described arrangement of clutch for connecting the driving wheels
with the motor for enabling the machine to be driven from the pedals without
the employment of the motor, substantially as described and illustrated.
3. The combination and arrangement of parts forming the convertible sociable
tricycle herein before described and illustrated in the accompanying drawings.
Dated the 30th day of August 1899
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.