Improvements in Driving Mechanism for Cycles.
Year: 1897

page_text: Date of Application, 25th Nov., 1897
Complete Specification Left. 24th Aug. 1898-Accepted. 1st Oct.. 1898
PROVISIONAL SPECIFICATION.
Improvements in Driving Mechanism for Cycles.
I, JOSEPH WILSON, of 18, Jamaica Road, Bermondsey, London, Blacksmith, do
hereby declare the nature of this invention to be as follows:-
This invention relates to certain speed gear for driving cycles.
For the purpose of my invention, I mount an internally toothed wheel having
a pedal at or near its periphery on the usual bracket axle, and by a slot in the
centre stay, or in a bar provided near thereto, I support a pinion, this being in
gear with the internal toothed wheel. These are arranged on one side of the
machine. At the other side of the machine I fit an ordinary crank and pedal
to the usual bracket axle.
The axle of the pinion projecting from the slot has the sprocket or chain wheel
affixed for transferring the motion to the rear drive wheel of the machine.
The weight of the gear is thus equalized on each side of the machine frame
and the slot permits of different sizes of pinions being fitted according to the gear
desired.
1
10
ht
H. GARDNER,
Patent Agent, 166, Fleet Street, London,
Agent for the said Joseph Wilson.
Driving Mechanism for Cycles.
I, JOSEPH WILSON, of 18, Jamaica Road, Bermondsey, London, Blacksmith, 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 certain speed gear for driving cycles.
My invention will be fully understood by reference to the annexed sheet of
drawings. Figure 1 side elevation. Figure 2 plan showing sufficient of a bicycle
for this purpose.
On one side of the machine, I mount an internally toothed wheel A having a
pedal B at or near its periphery on the usual bracket axle C, and by a slot D in
a bar or plate E clamped to and between the lower main tube F and the centre
stay G, (or the slot may be in the centre stay if desired). adjust and support a
pinion H, this being in gear with the internal toothed wheel A.

page_text: At the other and preferably the off side of the machine, I fit an ordinary
crank I and pedal J to the usual bracket axle C.
The axle K of the pinion H projecting from the slot D has the sprocket
wheel L affixed for transferring the motion to the rear chain wheel M and
drive wheel N of the machine.
The axle K can work in ball bearings and its sleeve or box P can be affixed
at the desired height in the slot D to suit the speed pinion H by the nut Q.
The weight of the gear is thus equalized on each side of the machine frame
and the slot permits of different sizes of pinions being fitted according to the
gear desired.
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:-
The arrangement of balanced gear shown on the annexed drawings and identified
by the appliances marked A, B, H on or from one side of the frame, and by the
appliances marked I, J, L, on or from the other side of the frame, the intermediate
axle K and connecting plate E with slot D being carried by the lower main
tube F and the centre stay G, as and for the purposes explained and substantially
as shown.