Improvements in Tyres for Cycle and other Wheels.
Year: 1895

page_text: Date of Application, 25th Oct., 1895
Complete Specification Left, 25th July, 1896-Accepted, 12th Sept., 1996
PROVISIONAL SPECIFICATION.
Improvements in Tyres for Cycle and other Wheels.
We THOMAS MILNES FAVELL, of Wolstanton near Stoke-on-Trent, Engineer,.
and GERALD BLAKENEY WILCOCKSON, of Mayer Street, Hanley, Mechanical
Draughtsman, both in the County of Stafford, do hereby declare the nature of
this invention to be as follows:-
This invention has for its object to so construct the tyres of cycle and other
wheels that while retaining the resilient properties of the ordinary pneumatic tyre
they shall not be liable to become punctured or otherwise injured by contact with
stones or other obstacles on the road.
In ordinary pneumatic tyres as now used great risk and trouble is caused by
them becoming punctured or otherwise injured owing to stones and other things on
the road.
In order to prevent this two or more hollow rings of india rubber or other
suitable material are placed side by side outside the felly of the wheel. These
are filled with air in the same manner as the ordinary pneumatic tyres. In the
groove formed between these rings a solid ring of india rubber or other suitable
material is placed and as this is of greater external diameter than the pneumatic
rings it will be seen that the wheel runs on this solid tyre which thus protects the
pneumatic rings and takes the wear and tear of the working of the machine for
which the other rings form the cushion or spring.
The outer ring can be made circular in cross section or of any other suitable
form and the inner rings can be formed in one piece if so desired
Dated this 25th day of October 1895
WHEATLEY & MACKENZIE,
Agents.
COMPLETE SPECIFICATION.
Improvements in Tyres for Cycle and other Wheels.
We, THOMAS MILNES FAVELL, of Wolstanton, near Stoke-on-Trent, Engineer,
and GERALD BLAKENEY WILCOCKSON, of Mayer Street, Hanley, Mechanical
Draughtsman, both in the County of Stafford, 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 has for its object to so construct the tyres of cycle and other
wheels that while retaining the resilient properties of the ordinary pneumatic tyre
they shall not be liable to become punctured or otherwise injured by contact with
stones or other obstacles on the road.
In ordinary pneumatic tyres as now used great risk and trouble is caused by
them becoming punctured or otherwise injured owing to stones and other things on
the road.
In order to prevent this two or more hollow rings of india rubber or other
suitable material are placed side by side outside the felloe of the wheel. These

page_text: are filled with air in the same manner as the ordinary pneumatic tyres, or may be
of the form known as "cushion tyres." In the groove formed between these rings
a solid ring of india rubber or other suitable material is placed and as this is of
greater external diameter than the pneumatic rings, it will be seen that the wheel
runs on this solid tyre which thus protects the pneumatic or cushion rings and
takes the wear and tear of the working of the machine for which the other rings
form the cushion or spring.
The outer ring can be made circular in cross section or of any other suitable
form and the inner rings can be formed in one piece if so desired.
In the accompanying sheet of illustrative drawings:
Figs. 1 and 2 are cross sections of pneumatic tyres constructed according to
this invention, more especially for use on the wheels of cabs and the like.
Figs. 3, 4, 5, 6 and 7 are cross sections of pneumatic tyres constructed according
to this invention, adapted more especially for use on cycles of all kinds, and
Fig. 8 is a cross section of a cushion tyre constructed according to this
invention.
In all the above the cushion form may be substituted for the pneumatic form of
ring and vice-versa.
Two inflatable tubes bb are placed side by side in a channel or groove formed
on the outside of the felloe or rim a of the wheel. These are filled with air in the
same manner as the ordinary pneumatic tyres. In the groove formed between
these rings bb a solid ring c of india rubber is placed, and as this is of greater
external diameter than the pneumatic rings bb it will be seen that the wheel runs
on this solid tyre c which thus protects the pneumatic rings b b and takes the wear
and tear of the working of the machine for which the other rings bb form the
cushion or spring.
In Fig. 1 the solid protecting ring c is carried round under the edge of the rim a
completely protecting both the inflatable tubes b b from coming in contact with the
road, and the edges of the rim a being slightly bent inwards tend to hold the solid
protecting ring c in position. In Fig. 2 the solid protecting ring e is formed with
an inwardly projecting flange which passes between the two inflatable tubes bb
which when inflated clamp the solid protecting ring c firmly in position whilst the
rim a being curved inwardly will not allow the inflatable tubes b b to blow off or
otherwise become detached.
In Fig. 3 the solid protecting ring c does not wholly enclose the inflatable
tubes 66 but sufficiently protects them from the road and is of a lighter form.
Fig. 4 is similar to Fig. 2 but is of lighter construction, the solid protecting
ring c not being carried quite up to the edges of the rim or felloe a does not
enclose the whole of the inflatable tubes b b.
Fig. 5 is similar to Fig. 3 but the rim or felloe a is of a slightly modified form
and the solid protecting ring c is still lighter than in Fig. 3.
C
Fig. 6 is similar to Fig. 4 but the rim or felloe a does not curve inwards and the
tyre is somewhat smaller than in Fig. 4.
Fig. 7 is similar to Fig. 3 but the edges of the rim or felloe a are carried farther
round till they meet the solid protecting ring c and so enclose the whole of the
inflatable tubes b b.
In Fig. 8 the rings 6 6 have only a small hole through their centres and are not
inflatable. The solid protecting ring c has an inwardly projecting flange as in
Figs. 2, 4 and 6 which is forced between the two rings bb. This tyre is commonly
known as the cushion tyre, but in all these cases the cushion and pneumatic tyres
can be interchanged.
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 :-
1. A pneumatic tyre consisting of two or more inflatable tubes placed side by
side in a channel or groove formed on the outside of the rim or felloe of a wheel

page_text: and of an outer solid protecting ring adapted to be retained in place when the said
tubes are inflated.
2. A tyre consisting of two or more cushion tubes placed side by side in a
channel or groove formed on the outside of the rim or felloe of a wheel and of an
outer solid protecting ring adapted to be retained in place when the said tubes are
in their place.
3. The improvements in tyres for cycle and other wheels, substantially as
described with reference to the drawings.
Dated this 25th day of July 1896.
WHEATLEY & MACKENZIE,
40 Chancery Lane, London, W.C., Agents.