Improvements in Elastic Tyres for Wheels of Bicycles, Tricycles. and other Carriages.
Year: 1896

page_text: Date of Application, 22nd Oct., 1896
Complete Specification Left, 12th Jan., 1897-Accepted, 27th Mar., 1897
PROVISIONAL SPECIFICATION.
Improvements in Elastic Tyres for Wheels of Bicycles, Tricycles.
and other Carriages.
We, GEORGE WILLIAM HAINES Hairdresser 4 Victoria Place Greenbank Road
Bristol FRANCIS JARVIS 28 Webb Street Stapleton Road Bristol, Hairdresser,
and WILLIAM TAPP Perfumer 37 College Green Bristol do hereby declare the
nature of this invention to be as follows:-.
Our improvements consist in filling tubes, of india rubber, canvas, or a
combination of both, or other suitable material, with powdered or granulated
cork, alone, or combined, with a solution of india rubber, or of any other suitable
material.
Dated this 21st dox of Catcher 1904
GEORGE WILLIAM HAINES..
FRANCIS JARVIS.
WILLIAM TAPP.
Improvements in Elastic Tyres for Wheels of Bicycles, Tricycles,.
and other Carriages.
We, GEORGE WILLIAM HAINES, of 4, Victoria Place, Greenbank Road,
Bristol, Hairdresser, FRANCIS JARVIS, of 28, Webb Street, Stapleton Road,.
Bristol, Hairdresser, and WILLIAM TAPP, of 37, College Green, Bristol,
Perfumer, 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:-
Our invention relates to improvements in tyres for the wheels of cycles and other
vehicles, and has for its object to fill the tubes or cases of which the tyres are
formed, with a light, durable, and resilient composition, and at the same time to
minimise the risk of damage and inconvenience from punctures to which tyres filled
with air are liable.
Our invention consists in using tubes or annular cases of any suitable material,
such as rubber, canvas, leather, or a combination of rubber and canvas, and filling
them with a composition made of small pieces of cork and any elastic cohesive
substance, preferably of a gelatinous nature, in which the cork particles have been
thoroughly distributed, and when used, will be retained in the desired relative
position; or instead of using tubes already made, and filling them with the
composition, the composition may be moulded into a ring of the size required for
the tyre, and when set, covered with a band or casing of rubber or the like, in
which certain parts are made thick to form a bearing surface when in use.
In preparing the composition, we take about three parts (by measure) of
pulverised or granulated cork, preferably the latter, and one part of a solution.

page_text: made from rubber, or from glue, gelatine, or isinglass, with which glycerine is
mixed, or from any similar materials, either alone or in combination, which will
form an elastic cohesive mixture suitable for the purpose; the solution is liquefied
in the usual manner, and the cork put in and stirred whilst cooling.
A solution which is found to yield satisfactory results is prepared as follows:-
Four parts of gelatine (by weight) are well soaked in water in which a small
quantity of "formalin " has been put as a preservative, one part of glycerine is
then added, and the whole thoroughly mixed by heating in a glue-pot or similar
vessel we also find that the gelatinous compound used in the manufacture of
printing ink rollers, is equally suitable for the purpose.
The composition being provided as described, by mixing the cork with the
solution, it is broken or cut into small pieces, when it is packed into the tubes,
either before the ends are united, or through a slit or slits cut in the under part
and closed after the composition is inserted, or if made into rings to form solid
tyres, the covering is put round the composition, and attached thereto by solution
or the like.
In the accompanying sheet of drawings, Fig. 1 is half in longitudinal section and
half in elevation, of part of a tyre, and Fig. 2 is a transverse section of the same,
shown in position on the rim, and filled with our composition; the essential part of
our invention, however, being the employment of the cork and elastic cohesive
solution for filling flexible tubular tyres or coverings instead of air, the drawings
are simply illustrations of a tyre filled with our composition.
A is the composition in the interior of the tyre, B is a circular tube, around
which a cover C is constructed or attached, with corrugations or the like thereon
to prevent slipping, and D is an ordinary rim of a wheel.
In the manufacture of the composition, the proportions may be varied according
to the relative resiliency and lightness desired, if more cork be added, the tyre will
be lighter and also less resilient, while an increase in the proportion of solution, will
give greater resiliency, and also add to the weight of the tyre.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what
we claim is :-
In the manufacture of tyres for the wheels of cycles and other vehicles, filling
the tubes or covers of the tyres with a composition made by mixing small particles
of cork with an elastic cohesive solution, substantially as and for the purpose herein
set forth and described.
Dated this 11th day of January 109
J. G. WESTLAKE,
2, John Street, Bristol, Applicants' Agent.