Improvements in Tyres for Cycles and other Road Vehicles.
Year: 1891

page_text: Date of Application, 18th Apr., 1891
Complete Specification Left, 15th Jan., 1892-Accepted, 20th Feb., 1892
PROVISIONAL SPECIFICATION.
Improvements in Tyres for Cycles and other Road Vehicles.
We THOMAS HOBLEY STONE and HARVINGTON CORSER trading as The
Birmingham Shroud and Coffin Frilling Company of 16 Bath Row Holloway Head
Birmingham Manufacturers do hereby declare the nature of this invention to be as
follows:-
This invention refers to tyres of india rubber and such like material and has for
its object the construction of a tyre capable of being fixed upon the felloe or rim of
the wheel without the use of cement or any other substance.
This we effect by forming the tyre of a sectional shape consisting of a solid
portion on that side which is to forin the outer face and an air chamber for the
back portion.
This air chamber is capable of being inflated from the back by means of a valve-
closed hole and the use of a pocket air pump.
The rim of the wheel is made in section slightly more than a half circle or the
felloe or rim may be a half circle in section with an inner rim on each of its outer
edges. In either case the object being for it to retain the tyre, when, after it has
been slipped into the rim it is inflated so as to expand and fully fill up the cavity in
the rim.
The use of a tyre of this description enables it to be readily removed for
replacing a broken spoke, and if the tyre should become loose it is readily tightened
by blowing more air into it. The danger of the air chamber being distroyed by
the rubber being cut is reduced to a minimum as there is only a thick face exposed,
and the fact that the thinner portion is free instead of being fixed to the rim enables
it to retain all its natural elasticity. Another advantage is that when the exposed
portion becomes flattened by wear this can to a great extent be remidied by still
further inflating the air chamber portion.
Dated this 17th day of April 1801
HENRY F. TALBOT,
7, Cherry Street, Birmingham, Agent for the Applicants.
COMPLETE SPECIFICATION.
Improvements in Tyres for Cycles and other Road Vehicles.
We THOMAS HOBLEY STONE, & HARVINGTON CORSER, trading as the
Birmingham Shroud & Coffin Frilling Company, 16 Bath Row, Holloway Head,
Birmingham, Manufacturers do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement, reference being had to the accompanying
drawings, & to the letters & figures marked thereon:-
This invention refers to tyres of india rubber, & such like material, & has for its
object the construction of a tyre, capable of being fixed upon the telloe or rim of
the wheel, without the use of cement or any other substance or material.
This we effect by forming the tyre of a sectional shape, consisting of a solid

page_text: portion on that side which is to form the outer face, or portion next to the road, &
an air chamber for the back portion, or part held by the rim or felloe. This air
chamber is capable of being inflated from the back, through a valve closed hole,
by a pocket air pump.
The rim or felloe of the wheel is made in section more or less of a half circle,
with an inner rim on each of its outer edges, the object being for the rim to grip &
retain the tyre, when it has been slipped into the rim & inflated, so as to expand &
fully fill up the cavity of the rim.
Referring to the accompanying drawings,
Fig. represents one of our improved tyres, (a) is the solid portion, & (b) the
tubular or air chamber portion, (c) is the metal rim or felloe with the rims (d d) on
its edges.
Fig. 2 shows a section of the tyre when inflated, with the air chamber (b)
expanded, the thick portion (a) thrown further out, & the back portion driven
tightly into the rim (c).
Fig. 3 shows a side view of a portion of a wheel, before the tyre is inflated, &
Fig. 4 the same with the tyre inflated.
A tyre formed as above described, can be readily removed for replacing a broken
spoke. And if the tyre should become loose, it is readily tightened by blowing
more air into its air chamber.
The danger of the air chamber being destroyed by the rubber being cut, is
reduced to a minimum, as the only exposed portion is the thick piece (a), & the
fact that the thinner portion forming the air chamber (b), is free instead of being
cemented or otherwise fixed to the rim, enables the india rubber to retain all its
natural elasticity.
Another advantage of this construction of tyre, is that when the thick portion (a)
which is exposed to the road, becomes flattened by wear, the evil can to a great
extent be remedied, by still further inflating the air chamber portion.
We make no claim for any special mode of inflating the tyre, but do this in the
ordinary way, by a valve in a tube placed through the rim c into the hollow
portion (b) of the tyre.
Having now particularly described & ascertained the nature of our said inven-
tion, & in what manner the same is to be performed, we declare that what we
claim is:
A new & improved tyre for cycles & other road vehicles, of india rubber or such
like elastic material, substantially as illustrated & described, consisting of a thick
portion exposed to wear by the road, & a back portion as an air chamber, held in a
rim so constructed, that inflating the air chamber will cause the tyre to be held
tightly upon & within the rim.
Dated this 14th day of January 1892.
HENRY F. TALBOT,
7, Cherry Street, Birmingham, Agent for the Applicants.