Improvements in or relating to Pneumatic Tyres.
Year: 1899

page_text: Date of Application, 27th Mar., 1899-Accepted, 20th May, 1899
COMPLETE SPECIFICATION.
Improvements in or relating to Pneumatic Tyres.
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 and has
special reference to means for securing the outer cover of the tyre in the rim of
the wheel so as to be easily detached and attached.
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 my mode of securing the tyre into the rim of the
wheel.
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 edges a¹ of the canvas which
is cemented to the rubber tread a³ and constitutes the backing or lining of the
outer cover A so as to extend over or beyond the edges of the rubber a². I then
turn these edges over and cement them to the edges of the rubber thus forming
the continuous pocket or piping a³ along either edge. Or I may form the con-
tinuous pocket or piping at the edges of the canvas during the process of weaving
the strips of canvas which strips may be woven in one continuous piece and then
cut to the required lengths for forming the backing or lining of the outer cover
of the tyre. These pockets or pipings a are provided to receive the spiral springs S
which springs may be inserted before the pockets or pipings are formned or after-
wards. When the tyre is fitted into the rim R, which rim is provided with the
inwardly formed channels or grooves around either edge, and the inner tube or
air chamber B inflated or filled with air under pressure through the valve V, this
inner tube B will force the piped or pocketed edges as of the outer cover into the
channel or grooves r¹ thus firmly and securely holding the tyre on the rim. It
will be evident that the rim R instead of being a solid rim as shewn may be what
is known as a hollow rim.
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 consisting essentially in forming
a pocket or piping such as a³ around the edges of the outer cover A for receiving
the spiral springs such as S 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 on to the rim of the wheel by

page_text: manner substantially as herein described and as shewn upon the accompanying
sheet of drawings.
Dated this 24th day of March 1899
JOHN SUMNER CLAYTON,
By George Barker,
Fellow of the Chartered Institute of Patent Agents,
Agent for Applicant, 77, Colmore Row, Birmingham.