Improvements in Elastic Tyres for Vehicle Wheels.
Year: 1893

page_text: COMPLETE SPECIFICATION.
Improvements in Elastic Tyres for Vehicle Wheels.
I, HUGH FAULKNER of Rockleigh, London Road, Leicester, Rubber Manu-
facturer, 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 has reference to elastic tyres for vehicle wheels and is designed
with a view of rendering the same less susceptible to the action of the sun and
therefore increasing the durability thereof.
It is well known, particularly to makers and dealers of cycles, that when elastic
tyred vehicles or machines are placed on sale or view in a shop window or store
room so as to be exposed at times to the sun, the latter exercises an injurious
effect upon the rubber of which the tyres are composed and in a short time causes
it to crack. Such machines are consequently depreciated in value thereby and are
generally sold as "shop soiled stock" at a reduced price. In the tropical climates
the rubber tyres are affected in a more marked degree in consequence of the
increased amount of sunshine prevalent in those parts.
This invention has for its object to construct an elastic tyre in such a manner
as to render it less susceptible to the action of the sun than those made in the
ordinary way, thereby making such tyres particularly useful for exhibition
purposes and thus reducing the quantity of "shop soiled stock" herein before
referred to and consequent loss occasioned thereby. Such tyres are also especially
valuable for hot countries for the reasons before named.
This invention consists in providing elastic tyres with an external jacket or outer
covering of canvas, silk or other similar material, preferably completely surrounding
the tyre. This jacket or covering of canvas or equivalent material may be cemented
and vulcanized to the tyre, and thus forms a protective coating to the internal core
or layer of rubber thereby rendering the latter less susceptible to the action of the
sun and consequently increasing the life thereof.
Referring to the accompanying drawing
Figure 1 is a cross section of one form of elastic tyre constructed in accordance
with this invention and Figure 2 is a plan of a portion of the said tyre.
Figure 3 is a section of the outer covering of a pneumatic tyre.
In Figures 1 and 2 A represents the body of the tyre which may be of rubber
and A¹ a usual air space therein.
B is an external jacket or coating of canvas which by preference entirely surrounds
the tyre as shown.
This canvas is cemented and vulcanized to the tyre and to obtain the best results
is laid on the latter so that the threads thereof lie at an angle to the circumference
or length of the tyre, and the ends of the canvas may be allowed to overlap as
shown.
In the outer covering of a pneumatic tyre illustrated in Figure 3, A is the usual
layer of rubber and B the external covering of canvas which is connected thereto
in the manner herein before described in reference to Figures 1 and 2.
The invention is not limited to the particular kinds of tyre illustrated but may
be applied to all forms of solid, cushion or pneumatic tyres, the canvas in each case
forming the outer, external or wearing surface to protect the rubber body from the
action of the sun.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is :-
1. An elastic tyre for vehicle wheels provided with an outer, external or wearing

page_text: surface of canvas or similar material substantially as and for the purpose
described.
2. In an elastice for vehicle wheels the combination of a jacket of canvas or
similar material cemented and vulcanized thereto substantially as and for the
purpose describer'
Dated this 24th day of October 1892
W. P. THOMPSON & BOULT,
Agents for the Applicant.