An Improved Tyre for Cycles and other Vehicles.
Year: 1890

page_text: Date of Application, 16th Oct., 1890
Complete Specification Left, 17th Aug., 1891-Accepted, 19th Sept., 1891
PROVISIONAL SPECIFICATION.
An Improved Tyre for Cycles and other Vehicles.
I, WILLIAM BEER, of 4, Norland Terrace, Holland Park, W., in the County
of London, Clerk, do hereby declare the nature of this invention to be as
follows:-
My invention relates to tyres for cycles, and other vehicles and has for its object
the construction of a tyre which shall be very elastic and flexible in order to
readily absorb vibration without being attended by the many disadvantages of tyres
made up to the present having a similar object in view.
My invention consists in arranging around a core of spongy rubber, or rubber
that has been made of a porous nature a hard coating of homogeneous rubber
similar to that used in the manufacture of solid tyres.
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The section of the tire thus formed may be round or any other approved shape
and may be cemented to the rim of the wheel in the ordinary manner.
The main difficulty that is experienced with the tyres known as
cushion tyres
is entirely obviated in my invention, that is the risk of cutting the tyre with any
sharp stones, or the edge of the rim is much reduced as in my tyre the centre being
closed up the tensile stress around the exterior of the tyre is much more uniform
and moderate in amount when distorted by the weight than it is in the ordinary
cushion tyre. Also numerous pockets for air are formed in the various interstices
of the spongy rubber and tend further to reduce abnormal distortion of the tyre by
the resistance to compression of the air in the said pockets.
Another important feature of my tyre is that any required amount of elasticity
can be obtained with great facility either by increasing the thickness of the envelope
of outside rubber or the density of the porous core as required.
Dated this 16th day of October 1890.
FELL & WILDING,
1, Queen Victoria Street, London, E.C., Agents for the Applicant.
COMPLETE SPECIFICATION.
An Improved Tyre for Cycles and other Vehicles.
I, WILLIAM BEER, formerly of 4, Norland Terrace, Holland Park, W., but now
of 35, Royal Crescent, Uxbridge Road, in the County of London, Clerk, do hereby
declare the nature of my invention and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement:
My invention relates to tyres for cycles and other vehicles and has for its object
the construction of a tyre which shall be very elastic and flexible in order to readily
absorb vibration without being attended by the many disadvantages of tyres made
up to the present having a similar object in view.
My invention consists in arranging around a core of spongy rubber or rubber or
other materials that has been made or is of a porous nature; a coating of homo-
geneous flexible material such as rubber similar to that used in the manufacture of
solid tyres.
The degree of hardness of this envelope may be varied to suit varying
circumstances.
The section of the sture thus formed

page_text: The main difficulty that is experienced with the tyres known as "cushion tyres".
is entirely obviated in my invention, that is the risk of cutting the tyre with any
sharp stones, or the edge of the rim, or the tyre splitting from the hole outwards,
is much reduced; as in my tyre the centre being closed up the tensile stress around
the exterior of the tyre is much more uniform and moderate, in amount when distorted
by the weight carried than it is in the ordinary cushion tyre having a hole running
through the interior of the tyre.
Another important advantage obtained by my invention is that numerous small
pockets for air are formed by the various interstices of the spongy rubber, which'
further tend to reduce abnormal distortion of the tyre by the resistance to com-
pression of the air in the said pockets.
Another important feature of my tyre is that any required amount of elasticity
and resilience can be obtained with great facility either by increasing the thickness
of the envelope of outside rubber or the density of the porous core as required.
I may arrange the spongy core excentric to the envelope so that the envelope
has an increased thickness on the tread to allow for wear and a decreased thickness
in that portion of the tyre which is supported in and cemented or fastened to the
rim of the wheel.
I do not confine myself to any particular shape of the interior core or the exterior
envelope as these may be made to suit varying circumstances.
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:-
1st. A tyre for the wheels of cycles or other vehicles consisting of a core of
spongy rubber or other similar material encased by an envelope of flexible and
homogeneous material substantially as described.
2nd. In such a tyre the disposition of the interior core excentric to the exterior
envelope so as to thicken the envelope on the tread of the tyre substantially as
described.
Data 15th of tumu 1901
FELL & WILDING,
1, Queen Victoria Street, London, E.C., Agents for the Applicant..