Improvements in Tyres for Cycles.
Year: 1891

page_text: Date of Application, 17th Mar., 1891
Complete Specification Left, 4th Dec., 1891-Accepted, 9th Jan., 1892
PROVISIONAL SPECIFICATION.
Improvements in Tyres for Cycles.
I, WALTER BEILBY of Masham Street, Armley near Leeds, in the County
of York, Engineer, do hereby declare the nature of this invention, to be as
follows:
-
The object of my invention is to construct tyres for cycles of greater elasticity
than solid tyres hitherto manufactured, without interfering with the wearing
qualities of the same.
The tyres may be of the ordinary round form but in order to impart increased
elasticity to the same, 1 provide round each ring or tyre any required number of
holes, transversely passing through same.
These holes have the effect of increasing the elasticity of the tyre as well as
producing a great reduction in weight which is another very important feature.
Dated this 17th day of March 1901
J. W. HARDING,
Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Tyres for Cycles.
I, WALTER BEILBY, of Masham Street Armley near Leeds, in the County of
York 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 :-
The object of my invention is to construct tyres for cycles in such a manner as
to obtain greater elasticity than can be obtained by the solid tyres hitherto
manufactured, without interfering with the wearing qualities of the same.
In order that my invention may be understood I will proceed to describe same
with reference to the accompanying drawings, in which
Figure 1 is a side elevation, and Figures 2 and 3 transverse sections, showing a
tyre constructed in accordance with my invention.
The tyre A may be of india rubber of the ordinary round form and may or may
not be provided with the ribs D, which are employed in order to better fix or
cement said tyre in the rim C of the wheel.
In order to impart increased elasticity to the said tyre A, I make any required
number of holes B which are punched through transversely in the tyre, such holes
being arranged completely round the tyre A, or these holes B may be formed
during the casting operation, or in any other convenient way.
The above arrangement of holes B has the effect of greatly increasing the
elasticity of the tyre, as well as producing a reduction in weight of tyre, which is
an important feature.
It will be readily understood that on the wheel coming round, and being in
contact with the ground, the weight of machine and rider will put the tyre A in
compression, so closing the holes B, and thus obtaining the elasticity; at the same
time owing to the said holes B being closed when in contact with the ground no
dirt or foreign matter can enter, consequently such holes are always perfectly
free from any obstruction which would hinder the effectual working of the
tyre A.
The holes B may also be of great use in case of an accident, such as the tyre
breaking or coming un-cemented, as, all that is necessary to refix the tyre is to
ID all

page_text: bind same to the rim or felloe by means of a cord passed through the holes and
round said rim of the wheel.
The great advantage I also obtain by means of tyres constructed in accordance
with my invention over the so-called cushion tyre, consists in the capability of my
tyre giving or yielding most readily to small objects on the road, such as ruts or
ridges, whereas the cushion tyre only spreads sideways on the rim, being unable
to shrink or relax within itself, as is the case with tyres constructed according to
my invention.
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 arrangement, construction, and application of tyre A, having holes B
transversely in or through same, substantially as and for the purposes herein
set forth.
Dated this L 1
1001