Improvements in connection with Driving Gear for Cycles and other Vehicles.
Year: 1896

page_text: Date of Application, 11th Dec., 1896
Complete Specification Left, 21st Dec., 1896-Accepted, 6th Feb., 1897
PROVISIONAL SPECIFICATION.
Improvements in connection with Driving Gear for Cycles and
other Vehicles.
I, ALFRED WILLIAM NASH, of 60, Corrance Road, Acre Lane, Brixton,
Gentleman, do hereby declare the nature of this invention to be as follows:-
My invention relates to driving gear for cycles and other vehicles, and the object
is to obviate the use of chains, and also of toothed gearing, and in carrying it into
effect, I proceed in or in about the following manner, assuming for the purpose of
this specification that the invention is applied to a cycle without however
restricting it to that particular use. On the crank axle of the machine I provide
a bevelled or mitred friction-wheel in place of the usual sprocket or toothed bevel
wheel employed with the usual chain or chainless driving gear. Parallel with
one of the arms of the back fork and preferably above the said arm, I provide a
spindle running in bearings attached to or forming part of the said arm. At each
end of the spindle is fastened a bevel friction pinion, one of which is in contact
with and rotated by the friction wheel on the crank axle, and the other of them is
in contact with and drives the rear or other wheel of the machine by means of
another bevel or mitre friction pinion attached to the axle of the driven wheel.
By this means the vehicle is propelled without the use of chain or toothed gearing
and consequently without the disadvantage of either of them. Suitable means
may be provided for putting and keeping the friction pinions and wheels in contact
with one another as, and when, required. The friction pinions and wheels may be
made of any suitable material covered or uncovered.
The 1906
HUGHES & YOUNG,
23, Coleman Street, London, E.C., Agents for Applicant.
COMPLETE SPECIFICATION.
Improvements in connection with Driving Gear for Cycles and
other Vehicles.
I, ALFRED WILLIAM NASH, of 60, Corrance Road, Acre Lane, Brixton,
Gentleman, 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 :-
My invention relates to driving gear for cycles and other vehicles, and the object
is to obviate the use of chains, or toothed gearing. In carrying it into effect
I proceed in or in about the following manner, making reference to the accom-
panying drawing, which is a side elevation of the invention as applied to a bicycle.
I do not however confine myself to the use of my invention for this one purpose,
as it may be used for any other vehicle to which it is applicable. On the crank
axle a of the vehicle, I provide a bevel or mitre friction wheel b in place of the
I'

page_text: usual sprocket or toothed bevel wheel employed with the ordinary chain and
chainless driving gears. Parallel with one of the sides c of the back fork and
preferably above the said side, I provide a spindle d running in bearings e attached
to or forming part of the said fork side c. At each end of the spindle d is fastened
a bevel friction pinion oue of which fis in contact with and rotated by the friction
wheel 6 on the crank axle, the other of them g being in contact with and driving
the rear or other wheel of the vehicle by means of another bevel or mitre
friction pinion i attached to the axle j of the driven wheel h. k is one of the back
stays. the diagonal, m the lower backbone, and n the cranks. By the above
means the vehicle is propelled without the use of chain or toothed gearing, and
consequently without the disadvantage of either of them.
Any suitable means may be provided for putting and keeping the friction pinions
and wheels in contact with one another, as and when required.
The friction pinions and wheels may be made of any suitable material, or
materials, covered or not with india-rubber, leather, or other material. I do not
restrict myself to the precise shape, configuration, relative proportions or disposition
of parts, as described in the above specification and exemplified in the accompanying
drawing, as any or all of them may be considerably varied without departing from
the essential feature of my invention, which is the employment of friction gear,
instead of chain or toothed gear.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is ;-
1. In chainless driving gear for cycles, and other vehicles the employment of
bevel or mitre friction wheels and pinions, substantially in the manner described
in the above specification, and exemplified in the accompanying drawing.
2. The method of driving cycles and other vehicles with chainless gear, provided
for and operating substantially as described in the above specification and
exemplified in the accompanying drawing.
Dated this 21st day of December 1896.
HUGHES & YOUNG,
23, Coleman Street, London, E.C., Agents for the Applicant.