Improvements in Driving Gear for Cycles and such like Vehicles.
Year: 1895

page_text: Date of Application, 19th Aug., 1895 -.
Complete Specification Left, 19th May, 1896-Accepted, 25th July, 1896
PROVISIONAL SPECIFICATION.
Improvements in Driving Gear for Cycles and such like
Vehicles.
I, JOSEPH RICKERBY of 14 Botchergate Carlisle in the County of Cumberland,
Implement Maker, do hereby declare the nature of this invention to be as.
follows:-
:-
This invention relates to driving gear for cycles and other vehicles to which it
may be adaptable and by its use the usual chain gear with its attendant disadvantages..
is dispensed with.
According to my invention I fix on each end of the axle of the driving wheel!
carried by the fork a toothed or gapped pinion which gears with and is driven.
by an internally toothed or gapped wheel mounted on a stud axle carried in a.
bearing formed in an extension of the fork. This bearing may be so arranged
or constructed as to allow of the adjustment of the axle therein whereby the
degree or depth of gear contact between the two wheels may be adjusted and.
which also allows of the fitting of change wheels for varying the speed if
required.
To or to an arm in connection with the said internally toothed wheel on each
side of the machine the pedal is fitted and may be disposed in relation to the centre.
thereof in such manner that its distance therefrom and consequent leverage may
be varied for the purpose of lengthening or shortening the stroke.
The bearings are preferably provided with balls or other friction reducing media.
while the other parts of the vehicle may be constructed as usual.
1005
A. CRAWHALL CHAPMAN,
3 St. Nicholas Buildings, Newcastle-on-Tyne, Patent Agent.
Improvements in Driving Gear for Cycles and such like
Vehicles.
I, JOSEPH RICKERBY of 14 Botchergate, Carlisle in the County of Cumberland,.
Implement Maker, 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 gear for cycles and other vehicles to which it
may be adapted and by its use the usual chain gear with its attendant disadvantages.
is dispensed with.
According to my invention, I fix on each end of the axle of the driving wheel.
carried by the fork or frame a toothed or gapped pinion which gears with and is.
driven by an internally toothed or gapped wheel mounted on a stud axle carried in
a bearing formed in an extension of the fork or frame.
This bearing may be so arranged or constructed as to allow of the adjustment of
the axle therein whereby the degree or depth of gear contact between the two-

page_text: wheels may be adjusted and which also allows of the fitting of change wheels for
varying the speed if required.
To or to an arm in connection with the said internally toothed wheel on each
side of the machine the pedal is fitted and may be disposed in relation to the centre
thereof in such manner that its distance therefrom and consequent leverage may be
varied for the purpose of lengthening or shortening the stroke.
The bearings are preferably provided with balls or other friction reducing media
while the other parts of the vehicle may be constructed as usual.
I will fully describe my invention with reference to the accompanying drawings
in which
.
Figure 1 shows a side view and Figure 2 a front view both partly in section and
in the following description like marks of reference designate like parts.
Referring to the drawings on each end of the driving axle A. I fix a toothed or
gapped pinion P which gears with and is driven by an internally toothed or gapped
wheel S mounted on a stud axle such as A¹ carried in a bearing formed in an
extension of the fork or frame F.
As above described this bearing may be arranged so as to be capable of
adjustment as to its position in any suitable and known manner.
To.or to an arm such as a in connection with the said internally toothed wheel
on each side of the machine the pedal P¹ is fitted and may be disposed as above
described.
The invention is applicable to cycles, motor-carriages and similar vehicles and
the relations between the pinion and spur wheels may be varied as required to suit
any required circumstances.
J
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. Arranging cranked and internally toothed spur wheels so as to gear with and
drive pinions of driving axles of cycles and such like vehicles substantially as
herein set forth.
2. The combination with axles of cycles and such like vehicles of pinions
arranged to be driven by internally toothed spur wheels fitted with arms or cranks
for driving purposes substantially as herein set forth.
Dated this 18th day of May 1896."
A. CRAWHALL CHAPMAN,
3 St. Nicholas Buildings, Newcastle-on-Tyne, Patent Agent.