Improvements in the Construction of the Rims or Felloes and the India-rubber Tyres of Cycle and other similar Wheels.
Year: 1890

page_text: -Date of Application, 30th Sept., 1890
Complete Specification Left, 24th June, 1891-Accepted, 25th July, 1891
PROVISIONAL SPECIFICATION.
Improvements in the Construction of the Rims or Felloes and the
India-rubber Tyres of Cycle and other similar Wheels.
I, JAMES WARWICK of Bank House, Bolton in the County of Lancaster,
Mechanical Engineer, do hereby declare the nature of my said invention to be
as follows:
The object of my invention is to so construct the rims or felloes of cycle or other
similar wheels which have hitherto been made of a crescent or curved segmental
form in cross section with their respective edges left sharp or plain as to obviate
the tendency which the said edges have had of cutting or otherwise injuring the
india-rubber tyre by overlapping the said edges when subjected to any degree of
pressure or weight, to strengthen the rim or felloe and also to prevent damage
being done to such edges by coming in contact with rough or stony roads as
heretofore.
In performing my invention I construct the rim or felloe of the usual crescent or
curved segmental form but with its edges curled inwards longitudinally so forming
a beading on the inside of the channel or groove on each side into which the india-
rubber tyre fits and which considerably strengthens the tyre and prevents it
buckling or the said beading may be formed whilst moulding or casting the rim or
felloe. And along the length and on each side of the india-rubber tyre and
slightly below the centre of the same I cut or mould an annular groove or recess
into which the said beading is capable of fitting.
It will be readily seen that by so turning inwards or beading the edges of the
rim or felloe I present a rounded or curved surface to the overlapping tyre and
thereby prevent damage being done to the same and I am enabled to make the tyre
of a greater width or diameter than heretofore and so as to be flush with the outside
of the rim or felloe and to cement and more effectually secure the tyre in position.
As a modification of my invention I sometimes simply turn the edges of the rim
or felloe inwards at right angles and cut or groove the tyre to receive the same
accordingly.
In practice it is found that in the case of using what are known in the market as
"cushion" tyres the aforesaid beading prevents the said tyre from splitting across,
the central bore being kept in a circular instead of assuming an elliptical form.
Dated this 29th of September 1890.
JOHN G. WILSON,
Patent Office, 55, Market Street, Manchester, Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in the Construction of the Rims or Felloes and the
India Rubber Tyres of Cycle and other similar Wheels.
I JAMES WARWICK of Bank House Bolton in the County of Lancaster
Mechanical Engineer do hereby declare the nature of my said invention and in what
manner the same is to be performed to be particularly described and ascertained
in and by the following statement :-
The object of my invention is to construct the rims or felloes of cycle or other
similar wheels which have hitherto been made of a crescent or curved segmental
form in cross section with their respective edges left sharp or plain so as to obviate
the tendency which the said edges have had of cutting or otherwise injuring the
india-rubber tyre by overlapping the said edges when subjected to any degree of

page_text: pressure or weight to strengthen the rim or felloe and also to prevent damage being
done to such edges by coming in contact with rough or stony roads as heretofore.
On the accompanying drawing
Fig. 1 is a transverse sectional view of my improved rim or felloe for cycle and
other similar wheels with a corresponding solid india-rubber tyre shewn applied
thereto.
Figs. 2 and 3 illustrate the improved rim and tyre separately.
Figs. 4, 5 and 6 are similar sectional views respectively of a modification of my
invention.
In performing my invention I construct the rim or felloe a of the usual metal and
of a crescent or curved segmental form in cross section but with its edges curled
inwards longitudinally as illustrated in Figs. 1 and 3 so forming parallel beadings bb
on the inside.
And along the length and on each side of the india rubber tyre c and slightly
below the centre of the same as seen more clearly in Fig. 2 I cut or mould a groove
or recess d corresponding to and into which the beadings & fit.
As a modification of my invention I sometimes turn the edges of the rim or felloe
inwards so as to form a V shaped beading as illustrated in Fig. 4.
It will be readily seen that these improvements are especially applicable to
cushion tyres as illustrated in Figs. 7 and 8 my improved beading forming an
effective support and means of retaining the bore e in its circular form.
By so turning inwards or beading the edges of the rim or felloe as herein before
described and illustrated, I not only strengthen the rim but the said rounded or
curved surface tends to prevent any damage by cutting being done to the tyre
and if so desired I am enabled to make the tyre of a greater diameter or width
than heretofore so as to lie flush with the outside of the rim at the same time
I more effectually secure the tyre in position. The tyre may be cemented in the
rim in the usual manner.
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 :-
The improved combination of rim or felloe for cycle and other similar wheels
having its edges on each side turned inwards to form a beading for taking into
corresponding grooves formed in the solid india-rubber or cushion tyre sub-
stantially as and for the purposes hereinbefore described and illustrated on the
accompanying drawing.
Dated this 22nd day of June 1891.
JOHN G. WILSON,
Agent for the Applicant.