Improvements relating to Pneumatic Tyres.
Year: 1897

page_text: HARD DIECIFICATION.
Improvements relating to Pneumatic Tyres.
I, THOMAS JOSEPH PERCY, of 5, Bridge Street, Chester, Cycle Agent, do hereby
declare the nature of this invention to be as follows:-
This invention relates to those pneumatic tyres in which an air tube lies within a
cover, and consists of a novel formation of said air tube.
Instead of the air tube being endless, i.e. a complete circle, it, according to my
invention, has two closed ends, whereby it may be removed without taking the
wheel from the fork. In order to join the two ends of the tube I provide one end
with an eyelet, and I dispose the air valve at the other end, so that the valve passes
through the eyelet and secures the two ends. The tube may be butt-ended, in
which case one end will carry a tongue in which is placed the eyelet; or the tube
ends may be "scarfed" to form a scarf joint, the eyelet being in the solid part of
one scarfed end whilst the air valve enters the hollow part of the other scarfed
end; or one end may be scarfed and the other butt-ended. In all cases the con-
nection of the two ends of the tube is effected by the air valve of one end passing
through the eyelet of the other.
J. A. COUBROUGH,
Registered Patent Agent (Qual. by Exam.),
10, St. George's Crescent, Liverpool, Agent for the Applicant.
Improvements relating to Pneumatic Tyres.
I, THOMAS JOSEPH PERCY, of 5, Bridge Street, Chester, Cycle Agent, 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 those pneumatic tyres in which an air tube lies within
a cover and to pneumatic tyres which consist of a single air tube which is without
a cover, and consists of a novel formation of said air tube.
Instead of the air tube which forms a tyre, or the inner tube of a tyre, being
endless, i.e., a complete circle, it has two closed ends. In order to join the two ends
of the tube I provide one end with an eye and I dispose the air valve at the
other end, the fastening of the two ends of the tyre being effected by threading the
air valve-tube of one end through the eye of the other end.

page_text: In the annexed drawing, Figure 1 is a sectional side view and Figure 2 is a plan,
illustrating the method which I prefer of securing the tyre ends.
A and B represent the two ends of my improved tyre. It will be seen that the
end B telescopes within the end A. The ends A and B are closed by the
diaphragms a and b, respectively, the diaphragm a being set back in the end A
to form a sleeve c into which the end B may penetrate some little distance. The
two diaphragms ab are inclined, so that the ends of the tyre form a scarfed joint.
In the end A is formed an eye or button hole d, and the air valve e is disposed on
the end B. To secure the two ends A and B the end B is placed within the
sleeve c and the air valve e is passed through the eye d. It will be seen that the
extremity of the sleeve c is scarfed also, and in some cases a strip of canvas or other
material is cemented over the sleeve c and end B.
In another form of tyre the two extremities thereof will be butt-ended, in which
case one end will carry a tongue in which is formed the eye or button hole d. Or
the tyre ends may be scarfed to form a scarf joint as above described, and instead
of using the sleeve c, the eye d is formed in the solid extremity of one end, the
other end carrying the air valve as before. Or one end may be scarfed and
provided with an eye, whilst the other extremity of the tyre is butt ended.
In all cases the connection of the two ends of the tube or tyre is effected by the
air valve of one end passing through an eye formed in the other end.
The eye d may be provided with a metallic eyelet or may be strengthened by a
ring of rubber or other material cemented around it.
When the tube constructed as herein described forms a tyre in itself it is of
course provided with a suitably thickened and strengthened tread, and may also
be provided with ridges which serve to keep the tyre within its rim.
The air valve e passes through the rim of the wheel as heretofore. The tube
-when forming a tyre in itself is thus prevented from creeping around the rim.
When the tube herein described forms the inner tube of a tyre provided with
a cover, the latter may be any of the well known covers at present used.
An advantageous feature of the tube herein described is that it can be attached
to or removed from a cycle wheel without the necessity of removing the latter
from its fork, and without loosening a single part of the cycle.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I would have it under-
stood that I am aware that pneumatic tyres, or the inner tubes thereof, have
heretofore been formed with closed ends, and I declare that what I claim is :-
As a means of securing the ends of a tube forming a pneumatic tyre, or the inner
tube of a pneumatic tyre; forming an eye or aperture in, or in a continuation of, one
end, and passing the tyre air valve, disposed in the other end, through such eye or
aperture, substantially as described.
Dated thi. 02-1 dar of Annil 1800
J. A. COUBROUGH,
Registered Patent Agent (Qual. by Exam.),
10, St. George's Crescent, Liverpool, Agent for the Applicant.