Year: 1898

page_text: I, ARTHUR ERNEST WEBB, 60, Welford Road, Leicester, Cycle Manufacturer,
do hereby declare the nature of this invention to be as follows:-
This invention relating to pneumatic tyres for vehicles has special reference
to those of the detachable type.
The object of the present invention is to construct a pneumatic tyre or cover
as hereinafter described the edges of which are made to normally interlock or
abut when placed in the wheel rim, the said edges being also further forced one
against the other and in the bottom of the rim by the air pressure within the tyre
when the latter is inflated.
A tyre or cover constructed in accordance with my invention comprises a flat
endless band, to the edges of which there may be attached, or in pockets formed
near the said edges there may be located, a wedge shaped strip or strips the thin
edge of which when the band is flat is directed away from the centre thereof.
The wedge-shaped strip or strips on one edge of the band may be double or
of greater thickness than the strip or strips on the other edge for the purpose
hereinafter described.
On the inner surface of the flat endless band there may be a flap, one side or
edge of which is permanently attached to the said band and the other or free
edge of which is also thickened or wedge shaped.
In some cases, instead of the flap having its edge thickened as described, the
wedge shaped strip or strips may be located a short distance from the edge.
The edges of the flat endless band and of the flap lock or abut together as
follows:-
The thickened or free edge of the flap is turned over towards its fixed edge
and is then overlaid by the adjacent thickened edge of the band so that the two
thickened edges are placed back to back locking or abutting one against the
other.
The other thickened edge of the endless band is then laid over the first edge
of the said band so that they abut or lock one against the other.
In this position therefore the two edges of the endless band overlay one the
other and the edge of the flap is overlaid by the lower edge of the endless band
the thicker edges in each case meeting or abutting, and when the tyre is inflated
these edges are forced one up against the other in the concavity of the wheel rim
so as to be fixed in position.
When the wedge shaped thickening of the flap is a short distance from the
edge of the latter, the part of the flap beyond the thickness is forced or held
against the inner face of the endless band by the air tube and assists the locking

page_text: or abutting edges to maintain their position and when no air tube is employed it
forms an air tight joint.
Dated this 28th day of January 1808
BOULT & WADE,
Agents for the Applicant.
Improvements in or relating to Pneumatic Tyres.
I, ARTHUR ERNEST WEBB, 4, Berridge Street, Leicester, Cycle Manufacturer,
late of 60, Welford Road, Leicester, 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 for vehicle wheels and has special
reference to those of the detachable type.
The object of the invention is to construct a pneumatic tyre cover, the edges
of which are made to interlock or abut against each other when placed in the
wheel rim the said edges being forced and held one against the other and in the
bottom of the rim by the air pressure within the tyre when the latter is inflated.
Referring to the accompanying drawings,
Figure 1 is a section of my improved tyre.
Figure 2 represents a section of the tyre cover or jacket laid out flat.
A represents the usual endless tubular air chamber which may be inflated
through a non-return valve of any suitable construction in the well known
manner. B represents the cover of the tyre which when off the wheel rim C as
most clearly indicated in Figure 2 is in the form of a flat endless band the central
roughened part 1 of which is the tread portion.
One edge of the said band is enlarged or thickened, the preferred shape being
that of a double wedge or an arrow head 1) as shown. On the opposite edge
of the band there may be a thickening in the form of a wedge E and attached
at F near the last named edge of the cover there is a flap F furnished also with
a thickening F of a similar shape to E.
The last two mentioned thickenings are preferably wedge shaped as shown
and when placed together they form a double wedge or arrow head similar to D.
These thickenings when fixed in operative positions as in Fig. 1 have their bases
in contact and when the tyre is inflated these bases are forced tightly one against
the other in opposite directions i.c. EF against D thus locking the cover in :
position on the rim as shown.
These thickenings are enclosed and vulcanised in the canvas lining B³ and may
be formed of india-rubber, gutta-percha or any other suitable material. Although
the shape of the thickenings shown is the one I prefer to employ I desire to have
it understood that the invention is not limited to these particular shapes, as 4
square, rectangular or other shapes in which the opposing faces offer sufficient
resistance one to the other to cause a lock when the tyre is inflated, may be
employed.
I am aware that it has been previously proposed to construct a tubeless tyre
comprising a flat endless band one edge of which is thickened and adapted to 4
be locked between a thickening on the other edge thereof and a thickening on a flap
attached to the inside of the said band, the said flap being continued beyond the
thickening so that when the tyre is inflated the said extension is forced by the
air pressure against the internal surface of the tyre to form an air tight joint.

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: :-
1. A pneumatic tyre comprising an endless tubular inflatable air chamber and
a cover for same consisting of a flat endless band one edge of which is thickened
and adapted to be locked between a thickening on the other edge thereof and
a thickening on the edge of a flap attached to the inner surface of the said cover
and to be forced tightly against each other by air pressure substantially as
described.
2. A pneumatic tyre constructed and arranged substantially as described and
illustrated in Figure 1 of the accompanying drawings.
OL OCTOver 10JO.
Witness:-
E. N. LEWIS,
A. E. WEBB.
Boult & Wade,
Agents for the Applicant.
Berridge Street Chambers, Leicester.