Improvements relating to Pneumatic Tyres.
Year: 1894

page_text: Date of Application, 7th Aug., 1894
Complete Specification Left, 7th June, 1895-Accepted, 13th July, 1995
PROVISIONAL SPECIFICATION.
Improvements relating to Pneumatic Tyres.
We, WILLIAM ALLDAY and EDMUND ALLDAY, both of Great Western
Works, Small Heath, in the County of Warwick, Engineers, do hereby declare
the nature of this invention to be as follows:-
This invention relates to pneumatic tyres for cycle and other vehicle wheels.
The object of our invention is to embrace or enclose the inner or 'air'tube of
such tyres, by means of an outer covering or sheath, having its edges effectually
secured independently of and away from the wheel rim, and in such a manner
as, to permit of their ready release to enable the cover to be opened for revealing
the tube:
In constructing a pneumatic tyre in accordance with our invention for a cycle
or other vehicle wheel, we employ an inner or air tube of the usual type. . We
form the outer covering or sheath for such inner tube from canvas, india-rubber, or
other material, preferably cementing its central portion to the rim to form a bed or
seating for the inner tube and to prevent creeping of the tyre, but with its edges
quite clear of and away from the rim. We provide suitable attachments or
connections formed in or upon the cover, or employ a separate connecting piece.to
enable the edges of such outer or embracing cover or sheath to be secured quite
independently of' and away from the rim of the wheel.
+
By this our improved method of forming and securing the outer cover or sheath"
embracing the inner or air tube of a pneumatic tyre, we are enabled to readily
open' out and turn back the edges of such cover, for inspection, repair, or, removal
of the inner tube, and to again secure the cover for effectually enclosing and
protecting the tube!
D
1.
i 100
COMPLETE SPECIFICATION.
Improvements relating to Pneumatic Tyres.
We, WILLIAM ALLDAY and EDMUND ALLDAY, both of Great Western
Works, Smält Heath, in the County of Warwick, Engineers, do hereby.
déclare 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 relates to pneumatic tyres for cycle and other vehicle wheels.
i
'
The object of our invention is to embrace or enclose the inner or air tube of
such tyres by means of an outer covering or sheath having its edges effectually
secured independently of and away from the wheel rim, and in such a manner as"
to permit of their ready release to enable the cover to be opened for revealing
the tube.
In constructing a pneumatic tyre in accordance with our invention for a cycle or
other vehicle wheel we employ an inner or 'air tube of the usual type. We form
the outer covering or sheath for such inner tube from canvas, india-rubber, or other

page_text: material, preferably cementing its central portion to the rim to form a bed or
seating for the inner tube and to prevent creeping of the tyre, but with its edges
quite clear of aud away from the rim. . We provide suitable attachments or
connections formed in or upon the cover, or employ a separate connecting piece to
enable the edges of such outer or embracing cover or sheath to be secured quite
independently of and away from the rim of the wheel.
By this our improved method of forming and securing the outer cover or sheath
embracing the inner or air tube of a pneumatic tyre, we are enabled to readily
open out and turn back the edges of such cover for inspection, repair or removal
of the inner tube, and to again secure the cover for effectually enclosing and
protecting the tube.
In the accompanying sheet of explanatory drawings we illustrate by sectional
views the application of our improved outer cover or sheath to cycle and other
vehicle wheel tyres.
Figure 1 is a section of a tyre in which the inner air tube A is enclosed by the
outer or cover sheath B, such cover having its edges or ends C C₁ formed for
engaging and interlocking with each other in such a manner that when the inner
tube is pumped up to the required pressure the two ends will be effectually secured
or fastened together.
Figures 2, 3, and 4, illustrate three methods of securing the edges of the cover
by means of an independent embracing or connecting piece D of canvas, india-
rubber, or other material.
Figure 5 is a section of our improved cover fastening having the interlocking
ends beneath the inner or air tube. The fastening is thus protected by the rim E,
but is not dependent upon it for effectually securing the adjacent edges of the cover
together.
Figure 6 is a sectional end view of the cover shown in position at Figure 5, and
Figure 7 is part plan of the same.
The hooked or linked interlocking edges F are preferably formed from metal
sheet or wire, but we sometimes vulcanise the ends or edges of the cover,
dispense with metallic or other attachments.
j
and
Although we sometimes form continuous engaging edges around the cover, yet
we preferably dispose the engaging parts F at intervals as shown in the part plan,
Figure 7.
Having now particularly described and ascertained the nature of our said inven
tion and in what manner the same is to be performed we declare that what we
claim is;-
1. In pneumatic tyres for cycle and other vehicle wheels the method of enclosing
the inner air tube by means of an outer covering or sheath having its edges
secured independently of the rim substantially as herein before described and as
illustrated in the accompanying drawings.
2. In pneumatic tyres for cycle and other vehicle wheels the improved outer
covering or sheath having its edges arranged for engaging or interlocking 'with
each other independently of the rim, substantially, as and for the purposes
herein before described and as illustrated at Figures 1, 5, 6, and 7 of the
accompanying drawings.
3. In pneumatic tyres for cycle and other vehicle wheels the use of an inde
pendent embracing or connecting piece for securing the edges of the outer cove
or sheath substantially as hereinbefore described and as illustrated in Figures 2, 3
and 4 of the accompanying drawings.
Dated this 6th day of June 1805
MARKS & CLERK,
18 Southamptou Buildings, London, W.C., and
13 Temple Street, Birmingham, Agents for the Applicants.