Improvements in Pneumatic Tyres for Cycles or other Vehicles.
Year: 1893

page_text: Date of Application, 9th May, 1893
Complete Specification Left, 9th Feb., 1894-Accepted, 10th Mar., 1894
PROVISIONAL SPECIFICATION.
Improvements in Pneumatic Tyres for Cycles or other Vehicles.
I, EDWARD FLINT, Witton Hall, Witton, Birmingham, in the County of
Warwick, Consulting Engineer, do hereby declare the nature of this invention to
be as follows:-
This invention relates to Improvements in Pneumatic Tyres for Cycles and other
Vehicles.
Pneumatic tyres as heretofore usually employed have been objectionable for the
reason that puncturing of the tyre causes the same to collapse and thereby renders
Now this
the cycle or other vehicle practically useless until the tyre is repaired.
invention is designed to provide a tyre that will not be seriously impaired by a single
puncture, cut, or split, whilst in use.
For this purpose instead of forming the tyre with a single air tube as heretofore
I construct the tyre with a number of small tubes arranged spirally around a
tubular or other suitable core after the manner of the strands in a rope or cable.
Means are or may be provided for inflating each tube independently of the others,
so that if for instance there were 16 tubes, in case of damage to one of them ouly
one 16th of the effect would be lost.
any
Such a stranded form of air tube may be provided with suitable
covering to give protection thereto, and may be secured to the wheel rim in any
convenient manner.
Dated this 9th day of May 1893.
E. FLINI,
By L. W., per F. B
COMPLETE DIDUITUATION.
Improvements in Pneumatic Tyres for Cycles or other Vehicles.
I, EDWARD FLINT, of Witton Hall, Witton, Birmingham, in the County of
Warwick, Consulting Engineer, 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 Improvements in Pneumatic Tyres for Cycles and other
Vebicles.
Pneumatic tyres as heretofore usually employed have been objectionable
for the reason that puncturing of the tyre causes the same to collapse and
thereby renders the cycle or other vehicle practically useless until the tyre is
repaired. Now this invention is designed to provide a tyre that will not be
seriously impaired by a single puncture, cut, or split, whilst in use.
as
For this purpose instead of forming the tyre with a single air tube
heretofore I construct the tyre with a number of small tubes arranged spirally
around a tubular or other suitable core after the manner of the strands in a
Means are
rope or cable.
or may be provided for inflating each tube
independently of the others, so that if for instance there were 16 tubes, then in
case of damage to one of them, only one 16th of the useful effect of the tyre
would be lost.

page_text: Such a stranded form of air tube may be provided with any suitable covering
to give protection thereto, and may be secured to the wheel rim in any convenient
manner.
In the accompanying drawings,
Fig. 1 is a side view of a portion of a pneumatic tyre constructed according to
this invention ;.
Fig. 2 is a cross section thereof, the air valve for one of the air tubes being
indicated in dotted lines.
a is a flexible tubular core inflated with air under pressure and b b are small
air tubes of suitable material such as india rubber arranged spirally around it
after the manner of the strands in a rope or cable. In the example illustrated
there are seven of these air tubes b, but there may be more or less as may be
found desirable. Each of them as well as the core a, is provided at a point
adjacent to the rim of the wheel to which the tyre is applied with an air valve c
which projects through and is attached to the wheel rim in the usual manner and
by means of which the corresponding air tube can be inflated or deflated as
required. The core a is also provided with an air valve that extends between
two of the outer tubes and through the wheel rim. d is the outer cover to
protect the air tubes b. It may be of any preferred construction, and can be
attached to the wheel rim in any known or convenient manner as well understood.
A solid core of suitable material such as india rubber or fibre may be used instead
of a hollow core, if desired.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what I
claim is:
For cycles and other vehicles a pneumatic tyre constructed with a number of air
tubes arranged spirally around a tubular or other suitable core substantially as
herein described for the purpose specified.
Dated this Oth day
February 1894.
For the Applicant,
W. LLOYD WISE,
46, Lincoln's Inn Fields, London, W.C., Chartered Patent Agent.