An Improvement in and relating to Pneumatic Tyres
Year: 1898

page_text: Date of Application, 6th Dec., 1898
Complete Specification Left, 6th Sept., 1899-Accepted, 18th Nov., 1899
PROVISIONAL SPECIFICATION.
An Improvement in and relating to Pneumatic Tyres,
WILLIAM HENRY Moss and JOHN HENRY ROWSE, of 6, Dale End, Birming-
ham, Cycle Engineers, &c., do hereby declare the nature of this invention to be
as follows:-
We make a double tube tyre and make the canvas pocket to lace and unlace
or fasten with studs buttons or special clips or fasteners.
In the edges of the canvas pocket or tyre we insert an elastic band or bands
which makes the edges extensible allowing the edges to expand so that it will
go on the rim easy and to contract and hold its self on the rim firmly without
the aid of cement and we claim that the edges being elastic and extensible it
will prevent the tyre from becoming too large as in the case of other tyres of
this type when they have been taken on & off the rim sevral times.
1000
WILLIAM HENRY MOSS.
JOHN HENRY ROWSE.
We, WILLIAM HENRY MOSS and JOHN HENRY Rowse, of 6, Dale End, Birming-
ham, Cycle Engineers, do hereby declare the nature of this invention and in
what manner the same is to be performed to be particularly described and ascer-
tained in and by the following statement:-
60
double tube,"
Our invention relates to pneumatic tyres of the kind known as
that is, having the cover separate from the air tube, and in which the edges of
the cover are extensible and adapted to be separably connected together as by
laces, studs, buttons, or the special clips or fasteners hereinafter described.
Hitherto such tyres have been liable to stretch in use, so that when they have
been put on and taken off from the rim several times, they become too large for
the said rim and are liable to leave the same accidentally.
To overcome this objection. we insert an elastic band or bands in the edges
of the cover, which, while allowing the said edges to expand sufficiently to
enable the tyre to be readily placed on the rim, contract and hold the tyre
firmly, but detachably, when once in position thereon, without the aid of cement.
And in order that our invention may be properly understood we will describe,
with the aid of the accompanying drawings, the best way of carrying out the
same known to us at the time of filing this specification.
Figure I is a transverse section of a pneumatic tyre constructed according to
our invention and fitted to a rim.

page_text: Figure II is a similar view without the rim and with the parts separated for
clearness.
Figure III is an inverted plan of a part of the tyre.
Figure IV is a side elevation of the special fastener hereinafter referred to.
Figure Vis a perspective view of a plate used for fixing the fasteners to the
cover.
Like numerals indicate like parts throughout the drawings.
We construct the cover of a pocket or lining 2 protected by an outer cover
of indiarubber or other suitable material 3. The lining 2 may consist of canvas
or other suitable fabric, the threads being preferably arranged diagonally. The
lining is doubled or is otherwise provided with a sheath at each edge, and into
each such sheath we insert an elastic band 4 of india rubber or other suitable
material. We find about two thirds the length of the lining a suitable length
for each band.. The bands are preferably cemented in place with a solution of
indiarubber in naptha or the like, and their ends may be overlapped and secured
by similar means.
"
The edges of the cover preferably overlap each other in the rim and are
secured together by suitable means, such as a lace passing through holes formed
in the said overlapping edges. or studs or buttons on one edge engaging with
holes or eyelets in the other edge. But we prefer to employ a clip or fastener 5
of the kind illustrated. the same being a modification of a spring fastener often
employed on gloves. The fasteners are secured to the inner edge at intervals
of about two inches, preferably by the plates 6. The claws 7 of the plates are
pushed through the inner edge of the cover and through the holes in the base 8
of the fastener and are turned over flat. This makes a quick and secure attach-
ment for the fasteners and leaves the cover quite smooth on the inside. The
tongues 9 have preferably rounded tips and are adapted to pass through holes 10,
arranged opposite the individual fasteners, in the under edge of the cover.
The tyre may be fitted to almost any grooved rim, but we prefer either the
"Dunlop-Westwood" or the "James," the latter of which is shown at 11 in
Fig. 1. We employ a rim tape 12 of ordinary construction, but we find it
best to cement the tape finally in position in the rim as this secures the tyre
against creeping on the rim...
In tyres subject to very hard work and high pressures, such as tandem tyres.
we prefer to provide the inner edge of the cover with a flap, such as 13, to avoid
any risk of the airtube 14 being forced in between the edges of the cover. The
airtube and valve may be of any suitable construction.
"
To assemble the parts the airtube is slightly inflated and then inserted in the
cover, the edges of which are next fastened together so as to inclose the said
airtube. The valve stem projects from the cover and is pushed through its
hole in the rim. The tyre is then stretched by firmly stroking it away from
the valve in each direction round the rim. At the same time it is worked into
the rim, and the part opposite the valve is lastly sprung into place. After
being set true in the rim the tyre is finally inflnted to riding pressure. The
tyre is preferably partially or wholly sprung out of the rim before being opened
for the repair of punctures or for other purposes.
We do not confine ourselves strictly to the above description, as modifications
may be made without exceeding the fair scope of our invention.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that what
we claim is
1. A double tube pneumatic tyre having elastic bands in the edges of the
cover, constructed, arranged, and adapted to operate substantially as herein
described and illustrated."
2. In a double tube pneumatic tyre. the edges of the cover of which are adapted

page_text: to be connected together, providing such edges with an elastic band or bands,
substantially as and for the purpose set forth.
3. A double tube pneumatic tyre, which has the edges of the cover adapted
to be connected together, and which is provided with the herein described means
for preventing the said tyre from becoming too large, substantially as set forth.
Dated this 6th day of September 1899.
DOUGLAS LEECHMAN, M.Cy.E.I.,
Fellow of the Chartered Institute of Patent Agents,
18, Hertford Street, Coventry,
9, Exchange Chambers, New Street, Birmingham, and
75, Chancery Lane, London, W.C.,
Patent Agent for the Applicants.