Improvements in Pneumatic Tyres.
Year: 1897

page_text: Date of Application, 12th Mar., 1897
Complete Specification Left, 11th Dec., 1897-Accepted, 19th Feb., 1898
PROVISIONAL SPECIFICATION.
Improvements in Pneumatic Tyres.
FRED PINDER, 3, Parade, Leamington Spa, Club Manager, do hereby declare
the nature of this invention to be as follows:
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The object of my invention is to do away with the present one piece arrangement
in tubeless tyres and consists of an endless airtight band of rubber or other suitable
material. Any valve may be connected thereto. A tyre cover either wired or
otherwise may be used in connection with the said band thus forming the whole
tyre in two separate parts united by inside air pressure after inflation. The end-
less band is slightly broader than the tread of the rim intended to fit and when the
tyre is inflated lies extended on both sides of the inner surface of the said cover,
preventing any escape of air except by puncture, such puncture being repaired on
its inner side. My band takes the place of the present inner tube of double tube
tyres, thus changing the said double tube tyres into tubeless pneumatic tyres.
Improvements in Pneumatic Tyres.
I, FRED PINDER, of The Leamington Club, 3, Parade, Leamington Spa, in the
County of Warwick, Club Manager, 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 cycles and other vehicles.
The object of my invention is to provide a better arrangement by means of
which airtight covers, either wired or otherwise, may be made into tubeless tyres;
and to provide a readier means of replacement should either part of a tyre be
damaged by wear or accident, as it is obvious that serious damage to the present
tubeless varieties causes much delay or incapacitates the whole tyre.
My band may he fastened or cemented to the rim, or it may rely on the natural
pressure of the rubber after being sprung on to the rim or felloe of the wheel.
The upper lips of the band lie over the edges of the said rim. The lower lips
lie in the felloe of the rim preventing damage to the air chamber by spoke heads
or the like when such injurious materials are not protected by the body of the
band, and they likewise keep the band in position.
Any valve may be fitted to the band.
The cover, used in connection with the band, is tucked between the upper and

page_text: lower lips thus forming a double joint, and other joints are formed on air being
forced into the chamber thus provided; such air pressure solidifying the joints,
forcing the edges of the band against the cover, the sides and bottom of the rim,
and jamming the cover between the lips of the said band.
Soft soap or other lubricant may form a binding surface between the band and
cover.
The centre, or any edge, or edges of the band may be fitted with wires or the
like.
A steel or other ring may be fitted to the band, such ring having a shaft and
fastener for tightening purposes on the outside of the rim, which fastener on being
tightened forms a perfect airtight joint before the application of the pump.
The band is of india rubber with or without canvas lining for strengthening
purposes, but it may be formed of other substance.
The band is made preferably to fit the conformities of the rim.
Any cover now in use, after being made airtight, may be used with my band.
The accompanying drawings show the nature of the invention, although I do
not limit myself to the illustrations as many alterations may be made without
departing from the principle of the invention.
Fig. 1. represents my band.
Fig. 2. is a modification of the band.
Fig. 3. and 4 show positions the bands may assume in rims before the applica-
tion of air-pressure.
A is the body of the band. B B are the upper lips. CC are the lower lips.
DDDD are the centre and edges where wires or the like may be used. The
dotted lines 1 or (+ show the positions where a steel or other ring may be fitted. F
shows the position of the shaft to which is attached a fastener outside the rim,
for the purpose of forming an airtight joint before application of the inflator.
Bands constructed according to my present invention, used in connection with
airtight covers, are so simple that they cannot get out of order or cause trouble to
inexperienced persons.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is:-
1. A band made or acting substantially as described.
2. A band rendering covers now in use independent of inner tubes.
3. A band, used with a cover, making joints above and below the cover,
the rim, and other joints on application of air pressure as described.
4. A band substantially as illustrated in the drawings.
and on