Improvement in or connected with Pneumatic Tyres for Wheels of Cycles or other Vehicles.
Year: 1898

page_text: Date of Application, 16th Aug., 1898-Accepted, 29th Oct., 1898
COMPLETE SPECIFICATION.
Improvement in or connected with Pneumatic Tyres for Wheels of
Cycles or other Vehicles.
IDA WYATT, 21, Benedict Road, Brixton, in the County of Surrey, Married
Woman, 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 the inner tube of a pneumatic tyre of a bicycle or
other vehicles.
In carrying out this invention there are employed a number of small pliable
india rubber tubes, following the circumference of the wheel each being tied or
otherwise sealed at one end, and then secured in a sleeve of an india rubber
valve, the other ends are to be stretched over nipples of the same valve, and
suitably secured thereto, these tubes are bound together by flat india rubber
bands, spaced at convenient distances apart. There is no connection between
any of these tubes and each one retains its own air independently.
The india rubber valve is pierced with small holes corresponding in number
with the tyre tubes, these holes are disconnected and have no communication
one with the other, the bottom of this valve is provided with a slightly raised
disc to receive the pad of the pump valve. An alternative arrangement is shown
by Figures 5, 6 & 7, there flat tubes are employed instead of round tubes, these
are inflated through an india rubber valve and small tubes leading therefrom,
these tubes pass through air tight holes formed in the flat tyre tubes con-
structed in any convenient manner but preferably as shown the opening and
closing of this valve is performed by screwing up and down the pump valve a
similar operation is used in the first described arrangement.
Referring to the accompanying sheet of drawings to assist in the description
of my invention.
Fig. 1 illustrates an end view of the valve, shewing the passage of the holes.
Fig. 2 is a section through the valve, shewing the method of fixing the tubes
at both ends.
Fig. 3. is a section through the tyre shewing position of holes on face of
the valve.
Fig. 4 is a plan of the valve sleeve and tubes.
Fig. 5 is a side view of the alternative arrangement.
. Fig. 6 is a cross section showing connection of the small tubes with valve
and flat tubes.
Fig. 7 is a plan of valve and flat tubes.
A Fig. 1, 3 & 6 is any suitable form of outer cover or tyre.
B Fig. 1, 2, 3, 5, 6. An ordinary pattern of double metal tyre rim which
need not necessarily be of the pattern shown in the drawings.
C Fig. 2 & 5. Air tight chambers formed in the metal rims to receive the
india rubber valves.

page_text: D Pump valve upon which is fixed a revolving metal disc to receive an india
rubber pad to close the inlet of the holes passing through the india rubber
valves E E¹ the plate or clip F is recessed to receive the flanged end of the
pump valve D to enable the disc to revolve, the threaded washer G is fixed on
to the rim into which is threaded the valve D so as to screw up and down to
open and close the inlets to the air passages through the valves E, E¹.
Other convenient and suitable methods for opening and closing these valves
can be used both in this case and to suit the different shape of the rims. The
india rubber webs or glands H are fixed to the lower portion of the valves to
press against the sides of the chamber C to prevent the escape of air during
the operation of inflating the tyre.
E. Figs. 1, 2, 3 & 4. An india rubber valve having small passages I, through
which air is pumped to the tubes K. The tubes or passages I are completely
disconnected, the nipples J are to receive the ends of the tubes K which are
stretched over them, and secured thereto, The sleeve L is attached to the
valve E, into which is secured the other ends of the tubes K, either by tying or
by any other suitable means.
An alternative arrangement is shown in Figs. 5, 6, & 7 there the tubes are
flat, Kare flat india rubber tubes shaped to the inner circumference of the
outer tyre or cover, to each of these flat tubes is attached in a proper manner
small round tubes I¹, and passing through holes in the india rubber valve E¹,
each of the tubes K¹ have hermetically sealed holes formed in the same to allow
of the small tubes I¹ to pass to and connect with the valve E¹. The tubes K¹
are properly lap jointed and sealed with composition.
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. In a number of small india rubber tubes either round or flat to form the
inner tyre which are so arranged that the air can be pumped into them by one
operation and when so inflated and the valve closed each tube retains its own
air independently substantially as described & illustrated.
2 An india rubber valve E perforated with separate holes, substantially as
described and illustrated.
3. In an arrangement for opening and closing the valve substantially as de-
scribed & illustrated.
4. In an arrangement of tubes having no connection with one another so that
in the event of one or more being punctured, the rest can be further inflated and
expanded to fill up the spaces caused by the deflated tubes.
Dated this 16th day of August 1898.
J
IDA WYATT,
Applicant.