Improvements in and relating to Velocipedes.
Year: 1896

page_text: Date of Application, 17th Dec., 1896
Complete Specification Left, 17th Sept., 1897-Accepted, 23rd Oct., 1897
PROVISIONAL SPECIFICATION.
Improvements in and relating to Velocipedes.
HENRY STANBRIDGE, 136 Wellesley Road Chiswick London W. Engineer
do hereby declare the nature of this invention to be as follows:-
The object of my invention is to provide a substitute for the chain form of
driving especially with reference to velocipedes with pedals fixed in a frame
between two wheels whereof the rear wheel is the driven one.
In carrying out my invention I speed up the pedals by means of suitable gear
wheels placed in the pedal bracket, using if necessary an additional axle or axles.
The multiplication of this speed I may vary and I attach to the axle or axles
representing the increased speed eccentrics or cranks connected by rods to similar
eccentrics or cranks on the hub of the wheel to be driven, so that the multiplied
speed derived by revolving the pedals is communicated to the rear wheels. I also
arrange, if desired a clutch, operated by levers, in such manner, as to engage
different wheels and so vary the speed.
10
December 1806
HENRY STANBRIDGE.
HENRY STANBRIDGE 136 Wellesley Road Chiswick London W. 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 driving or motion transmitting gear of cycles.
Fig. I shows a side elevation of part of the rear driving wheel and part of saddle
pillar tube of a bicycle fitted with my gear.
A represents the rim of the rear or driving wheel.
B the axis of the said wheel.
C the saddle pillar tube.
D the gear bracket forming the continuation of the said saddle pillar tube.
E and E are eccentric discs attached at right angles to each other at each end
of the axle F' which is centred in the bracket D.
The axle F carries a gear wheel G which is in gear with two other gear
wheels H and I forming a train of gear wheels, the gear wheel I being mounted
on the crank axle J. On either side of axle or hub B of the rear wheel are
mounted eccentric discs K and K. The eccentric straps and rods L and L' connect
077

page_text: respectively the eccentric discs E and K and E and K and the said discs and
straps are grooved for ball races.
Motion communicated to the crank axle J is transmitted by means of the train
of gear wheels, which may consist of three or more wheels, to the axle F and from
theré by means of the eccentric discs E and E, the straps L and L', the eccentric
discs K and K to the hub of the driving wheel.
The said gear wheels, the axles of which run in ball bearings, are mounted in
the bracket D and protected by a suitable independent gear case M. The saddle
pillar tube C is joined to the bracket D at N by any suitable means, the gear
containing bracket being thus centrally situated in a line with the two wheels,
being respectively steering and driving wheels, and the crank axle J is thus in
about the same position it occupies in a bicycle as at present constructed.
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. Driving cycles by eccentric discs, rods and straps in combination with a
bracket containing speeding gear operating eccentric discs by which the eccentric
discs on the axle of the rear wheel are driven.
2. Mounting the said speeding gear centrally between the front or steering
wheel and rear or driving wheel, the axes of the said gear wheels being in a line
with the continuation of the saddle pillar tube C.
3. The improved driving mechanism for velocipedes as described and illustrate!
in the accompanying drawing.
Dated this 17th day of September 1897
HENRY STANBRIDGE.