Improvements in or relating to Pneumatic Tyres and in Materials Used in the Construction of the same.
Year: 1899

page_text: PROVISIONAL SPECIFICATION.
Improvements in or relating to Pneumatic Tyres and in Materials
Used in the Construction of the same.
1, JEAN EPINAT, of 34, Rue Ferrandiere, Lyons, in the Republic of France,
Mechanical Engineer, do hereby declare the nature of this invention to be as
follows:-
This invention relates to an improved fabric for pneumatic tyres made very
supple, unalterable by damp, and proof against such punctures or damage and
burstings which might occur on the road, by means of a special composition con-
sisting of alcohol, ether, resin, or colophony, in nearly equal proportions.
The composition is spread out on simple linen or the like or several double
layers of linen which is secured underneath the running surface of the pneumatic
tyre. In a tyre constructed according to my invention a complete circle of linen
is treated with the composition and has further linen pieces so treated built
thereon, so as to give a cross section of a crescent form; the whole being suitably
nasted together; further on the so formed tyre I secure a strip of india-rubber
consisting of a band of equal thickness throughout; the above described arrange-
ment is used as a covering for the air tube, and by employing the same there is
no need to have any further strengthening devices for the air tube of the tyre.
The linen strips can be prepared with the solution in advance, so that they have
only to be built up and secured together.
Improvements in or relating to Pneumatic Tyres and in Materials
Used in the Construction of the samė.
I, JEAN EPINAT, of 34, Rue Ferrandière, Lyons, in the Republic of France,
Mechanical 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 an improved fabric for pneumatic tyres rendered very
supple, unalterable by damp or heat, and proof against such punctures or damage
which might occur when the tyre is being used, by means of a composition con-
sisting of alcohol, ether, resin and colophony dissolved and mixed in nearly equal
proportions. The composition is spread on a simple layer of linen or the like or
[Price Sd

page_text: on several layers of the same which is secured between the cover and the tyre
or upon the tread part of the pneumatic tyre.
Strips of linen of different width are built up so as to form a complete circle
having a cross section of a crescent form; the strips are pasted together by means
of a solution of caoutchouc and are treated with the composition.
Further, on the so built up linen circular band an outside layer of caoutchouc
is arranged so that the whole forms a non-puncturable and complete outer cover
for an ordinary pneumatic inner tube.
The linen strips can be prepared with the solution before being pasted and can
he sewn together. The fabric so treated can also be arranged between the cover
and the air chamber of an ordinary pneumatic tyre.
In the accompanying drawing,
1 represents the outer cover of rubber or the like and ordinary linen.
2, is the air chamber or tube with ordinary linen partly surrounding same.
3 is the rim of the wheel.
4 is a circular band of ordinary linen for preventing the spokes from damaging
the air tube or chamber.
5 shows several layers of linen, rendered unpuncturable by the composition
described, crossing one another, pasted and sewn together, and afterwards coated
with a rubber-solution, containing about four parts of caoutchouc and two parts
of white lead.
These layers are attached either to the interior of the outer cover or to the
linen partially covering the air tube.
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
-
An improved fabric for use in the construction of pneumatic tyres for bicycles,
tricycles, automotorcars or the like, rendered proof against punctures by means of
a composition of ether, alcohol, resin and colophony in nearly equal proportions.
the said composition being spread on layers of the fabric which are built up,
so as to have in cross section a crescent form, and are joined or pasted together
by a solution of caoutchouc, sewn together and provided with an outer layer of
india rubber so as to form a complete and non-puncturable cover for the inner
tubes of pneumatic tyres.
Dated this 22nd dox of Navervilion 1000
HERBERT HADDAN & Co.,
Agents to Applicant, 18, Buckingham Street, Strand, London.