Year: 1897

page_text: Date of Application, 26th Mar., 1897
Complete Specification Left, 28th Dec., 1897-Accepted, 12th Mar., 1898
I, TOM SHOTTER, of 47, Ricketts Road, Chiswick, in the County of Middlesex,
Salesman, do hereby declare the nature of this invention to be as follows:-
My invention relates to improvements in the driving mechanism of cycles and
has for its object to simplify the same by dispensing with the use of the ordinary
pedal cranks."
For this purpose I make the driving sprocket wheel to take the place of the crank
that is I connect the pedal directly to the said wheel the latter being formed of
a suitable size for the purpose and there being necessarily a same size wheel plain
or otherwise upon the other side of the machine or end of the pedal-crank axle.
I prefer to construct the said sprocket wheel or wheels with an open framework
for lightness as it may be of larger size than the ordinary ones and to form one of
the radiating arms or spokes with a longitudinal slot or other opening into which
I fix the inner end of the pedal axis which may be done by means of a screw-nut
and washer or otherwise so that the distance of the pedal from the centre of the
wheel may be adjusted as desired.
J. B. FLEURET,
5, Hatton Garden, London, Agent for the Applicant.
J. B. FLEURET,
5, Hatton Garden, London, Agent for the Applicant.
I, TOM SHOTTER, of 47, Ricketts Road, Chiswick, in the County of Middlesex,
Salesman, 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 improvements in the driving gear of cycles and has for
its object to simplify the construction of such gear by dispensing with the use of
the ordinary operating or pedal cranks.
.
For this purpose the driving sprocket or large chain wheel is so constructed as to
Price 8d 1

page_text: take the place of the crank that is to say the pedal is connected directly to the said
sprocket wheel the latter being formed of a suitable size for the purpose.
A similar wheel or it may be a plain disc or a crank is fitted upon the other end
of the driving axle to which the other pedal is attached in a similar, or in the
ordinary manner.
.
This improved sprocket wheel being of larger size than those of ordinary
machines is formed with an open or skeleton framework for the sake of lightness
and one of its radiating arms or spokes is formed with a slot or perforation through
which the inner end of the pedal axis. is passed for attaching the same to the said
arm or spoke by means of a nut screwing on the end of the said axis or by a key
or cottar or other suitable means.
Should the sprocket wheel be too large for the required gear a smaller sprocket
wheel is fitted to the side of the same the said smaller wheel being attached by
means of screw studs or other suitable means, passing through the side thereof or
through a circular flange formed, therewith and a portion of the frame of the large
wheel or the two wheels may be cast in one with each other.
In some cases also the sprocket wheel may be constructed of the smaller or
required size and have attached to it or be formed with a short arm or projection
to which the pedal axis is attached at the required distance from the centre and
beyond the circumference of the 'said wheel.
And in order to clearly understand the invention I will describe the same with
reference to the accompanying sheet of drawings in which Fig. 1 is a side view of
my improved sprocket wheel and Fig. 2 is a vertical cross section of the same.
Figs. 3 and 4 are similar views of a double sprocket wheel and Fig. 5 is a side view
of a sprocket wheel provided with an arm or extension for carrying the pedal.
As seen in Figs. 1 and 2 the sprocket wheel is constructed of the open framework
consisting of the rim a formed with teeth the arms or spokes a¹ and the inner
ring a².
One of the arms or spokes between the rim a' and the ring a² is formed with a
slot or perforation 6 through which the inner end of the axis c of the pedal d is
passed the said axis being secured in position by means of the nut f screwed on
the end thereof.
In Figs. 3 and 4 the sprocket wheel is fitted with the extra or smaller sprocket
wheel for the purpose of providing change gearing.
The wheel g is attached to the ring a2 by means of the screw studs g¹ passing.
through the circular flange g² formed on the wheel 9 or the said wheel 9 may be
cast in one with the large sprocket, wheel.
Fig. 5 shows, the invention applied to smaller sprocket wheels in which a short
arm or extension h is fixed to or cast in one with the'rim e of the wheel extending
beyond the same at the required distance for carrying the pedal i.
By means of my invention the necessity of attaching the cranks to the driving
axle is thus obviated and the cost of the mechanism reduced.
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 driving gear for cycles attaching each of the pedals to a sprocket wheel
on both ends of the driving axle substantially as described and for the purpose
specified.
(2) In driving gear for cycles the combination of a large sprocket wheel to which
the pedal is directly attached and a smaller sprocket wheel fixed to or formed there-
with substantially as described and for the purposes specified.
(3) In driving gear for cycles providing the sprocket wheel with a short arm or
extension for carrying. the pedal substantially as described and for the purposes
specified.
.(4) In driving gear for cycles connecting, one of the pedals to the sprocket wheel

page_text: on one side of the machine and the other pedal to a disc or crank on the other side
of the machine substantially as described and for the purposes specified.
D: 60th day of December 1907
J. B. FLEURET,
5, Hatton Garden, Holborn Circus, E.C.,
Agent for the Applicant.