Improvements in or relating to Pneumatic Tyres for Cycle and other Vehicle Wheels.
Year: 1899

page_text: Date of Application, 27th Mar., 1899-Accepted, 20th May, 1899
COMPLETE SPECIFICATION.
Improvements in or relating to Pneumatic Tyres for Cycle and other
Vehicle Wheels.
I, JOHN SUMNER CLAYTON, of 1, Starkey Street, Leyland, near Preston, in the
County of Lancaster, Rubber Worker, 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:-
My invention has for its object improvements in pneumatic tyres for cycle and
other vehicle wheels and refers especially to means for securing or retaining the
outer cover or tread portion of the tyre in the rim of the wheel so that the tyre
can be easily and quickly detached or attached when required.
In order that my invention may be clearly understood and more easily carried
into practical effect I have appended hereunto a double sized sheet of drawings
upon which I have illustrated an example of my mode of securing the tyre inte
the rim of a cycle wheel or felloe.
Figure 1 is a view shewing a portion of a pneumatic tyre secured into the rim
according to my invention.
Figure 2 is a plan view of a portion of the outer cover of the tyre.
Figure 3 is a cross sectional view of the outer cover as shewn at Figure 2.
In carrying my invention into practice I form the canvas f¹ which is cemented
to the rubber tread and constitutes the backing or lining of the outer cover I'
with the continuous pocket or piping at the edges these pockets or pipings may
be made during the process of weaving the canvas or its equivalent that is to say--
the canvas with its pockets or pipings would be woven in one continuous piece or
strip and then cut into the required lengths for cementing to the rubber tread fa.
Or these continuous pockets or pipings may be formed when cementing the strips
of canvas to the rubber tread by leaving the edges of the canvas so as to extend
over or beyond the edges of the rubber fr. The edges of the canvas are then
turned over and cemented to the edges of the rubber thus forming the continuous
pocket or piping fat either edge. These pockets or pipings are provided to
receive the chains D which chains may be inserted before the pockets or pipings
are formed when forming these pockets during the process of cementing the canvas
to the rubber or the chains may be threaded through the pockets or pipings after
the outer cover is completed. The rim R for receiving the tyre is formed with the
channels or grooves around either edge so that when the inner tube or air
chamber A and the outer cover F are fitted into this rim and inflated or filled with
air under pressure through the valve V the inner tube A forces the edges f³ of the
outer cover Finto the channels or grooves 1 thus firmly and securely fixing the
tyre on the rim. It must be understood that I do not confine myself to the particu-
lar shape of rim shewn as I may use what is known as a hollow rim providing the
edges are formed so as to receive the edges of the outer cover F when the tyre
is inflated.

page_text: 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:
CLAIMS.
First: The improvements in pneumatic tyres for cycle and other vehicle
wheels consisting essentially in forming a pocket or piping such as f around the
edges of the outer cover F for receiving the chain such as D in the manner and for
the purpose substantially as herein set forth and as shewn upon the accompanying
sheet of drawings.
Second-In pneumatic tyres, securing the tyre into the rim of the wheel by 1
inserting a length of chain in a pocket or piping formed on each edge of the outer
cover so as to take into a channel or groove formed on the edges of the said rim
in the manner substantially as herein set forth and as shewn upon the accompany-
ing sheet of drawings.
JOHN SUMNER CLAYTON,
By George Barker,
Fellow of The Chartered Institute of Patent Agents,
Agent for Applicant, 77, Colmore Row, Birmingham.