Year: 1895

page_text: SYDNEY LEE of 9 Furnival Street in the City of London, Managing Director
of The Puncture-proof Pneumatic Tyre Co. Ltd., do hereby declare the nature of
this invention to be as follows:-
This invention relates to pneumatic tyres and the means for fastening them on to
the wheels.
The tyre comprises an air tube of ordinary construction and an outer cover
constructed of usual materials such as rubber-covered canvas, webbing, threads, or
the like of a size sufficient to enclose the air tube and cover it in up to the rim.
Beyond this each side of the cover or of the canvas or equivalent portion thereof is
extended to a suitable distance and carries a beaded or equivalent edge of suitable
size to prevent it slipping between the rim and a wire or other non-stretchable hoop
or band which lies in the rim and on top of this extended portion of the cover.
the object of this bead is merely to prevent it from slipping between the hoop and
As
the rim it need not be continuous and may with advantage be elastic so as to fill the
space better and serve as a cushion. When the tyre is deflated the beaded or
equivalent edge of the cover can be drawn inwards between the rim and hoop by
noving the latter towards the centre of the rim, but when the tyre is inflated the
beaded edge is gripped between the edge of the rim and the cover which is forced
out against it, and therefore cannot be drawn inwards past the hoop. Preferably
the enlarged edge is of a suitable diameter to fit conveniently upon the edge of the
rim, its diameter being slightly in excess of that of the rim, but other means of
preventing the cover from slipping past the hoop may be adopted. For example
the edges of the cover may be provided with hooks or equivalent to engage
with the edge of the rim of the wheel, or with openings or projections in or upon
the rim; or again, the hooks or equivalent may engage with the hoop. In short,
30 long as suitable means are provided to prevent the edge of the cover from
escaping from the rim or from the hoop or between the two, the invention may be
efficiently carried out.
The bead prevents chafing of the cover at the edge of the rim and also the damp
rom entering the rim between it and the cover.
Dated this 20th day of September 1895
.
BOULT & WADE,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in or relating to Pneumatic Tyres.
I, Sydney Lee, of 9 Furnival Street, in the City of London, Managing Director
of The Puncture-proof Pneumatic Tyre Co. Ltd., 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 relates to pneumatic tyres and the means for fastening them on
[Price 8d.]

page_text: to the wheels, and will be best understood by reference to the accompanying drawings
in which :-
Fig. 1 is a transverse section of a tyre constructed according to my invention
shown as applied to a wheel rim.
Fig. 2 is a perspective view of a portion of the pneumatic tyre and wheel
rim, and
Fig. 3 is a view of the cover detached from the rim and air-tube.
Like letters indicate like parts throughout the drawings.
The tyre comprises an air tube A of ordinary construction and an outer cover B
constructed of usual materials such as rubber-covered canvas, webbing, threads, or
the like of a size sufficient to enclose the air tube. Beyond this each side of the
cover or of the canvas or equivalent portion thereof is extended as at B' to a suitable
distance and preferably carries a beaded or equivalent edge C of suitable size.
This extended edge lies between the rin D and a wire or other inextensible endless
hoop or band E which lies in the rim and on top of the extended portion B' of the
cover. This bead C need not be continuous and may be elastic. When the tyre
is deflated the edge of the cover can be drawn inwards between the rim D and
the hoop E by moving the latter towards the centre of the rim preferably the
enlarged edge C is of a suitable diameter to fit conveniently upon the edge D¹ of
the rim D.
A feature of importance in this invention is that the securing of the cover to the
rim is effected by hoops or rings which are entirely independent of the cover. By
the word "independent" employed in the claims I mean the independence of the
hoops in relation to the cover.
The same means of fastening could be applied to a single tube tyre by adding
flaps to the tube in lieu of the edges B', which would be secured by the independent
hoops in the same manner as B¹.
In my Provisional Specification I described the object of the beads C as being for
preventing the edges of the cover B from slipping between the hoops E and the
rim D, I have however found by experiments that the beads may be entirely
dispensed with as the friction when the tyre is inflated is sufficient to prevent the
edges of the cover from slipping inwards. I however prefer to provide the cover B
with the beads C as these beads enable the operator to more securely hold the edges
of the cover when the latter is being applied or adjusted to the rim, and easily and
accurately determine the correct position of the cover since they lie just upon the
edges of the rim. This saves much time and trouble in adjusting the tyre.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed I am
aware that
previous to this invention tyres bad been secured to wheel rims by means of metal
bands the ends of which were drawn together so as to tighten the band upon the
tyre or cover and thus bind it to the ring; the hoops or bands of my present
invention are complete endless hoops or rings without joint the diameter of which
is invariable, and I do not make any claim to hoops or bands with free ends but what
I claim is :-
1. The employment of one or more “independent" inextensible hoops or
bands for the purpose of securing a pneumatic tyre or the cover thereof to a
wheel rim.
2. In a pneumatic tyre the employment in combination with a cover of an
inextensible hoop or band "independent" of the cover.
3. Securing a pneumatic tyre to a wheel rim by a flexible cover or flaps and
"independent" inextensible hoops the edges of the cover or the flaps passing between
the wheel rim and the hoops substantially as described.
· 4. Securing a pneumatic tyre to a wheel rim by a flexible cover or flaps and
"independent" hoops the cover or flaps passing first between the air tube and the
hoops and then between the hoops and the rim so that when the tyre is inflated the

page_text: cages of the cover are gripped between the cover and the rim substantially as
described.
5. As a means of securing a pneumatic tyre to a wheel rim a flexible cover such
as B B' inextensible hoops such as E and beads or enlargements such as C all
arranged substantially as and for the purpose described and illustrated in the
accompanying drawings.
6. The complete pneumatic tyre substantially as described and illustrated in the
accompanying drawings.
D
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