Improvements in Pneumatic Tyres and Rims for Cycles and other Vehicles.
Year: 1896

page_text: Date of Application, 30th Dec., 1896
Complete Specification Left, 1st Nov., 1897-Accepted, 4th Dec., 1897
PROVISIONAL SPECIFICATION.
Improvements in Pneumatic Tyres and Rims for Cycles and other
Vehicles.
JOHN WHITEHEAD 42 Anglesea Street Birmingham in the County of Warwick Art
Metal Worker and JAMES ALFRED CRANE 43 Villa Road Handsworth in the County of
Stafford Modeller do hereby declare the nature of this invention to be as follows:-
The object of this invention is to readily attach and detach the tyres, and to dispense
with an inner air tube if desirable. We form the tyre with loops along each edge
but of sufficient depth to enable the inner side of the loops to be perforated.
Recesses are formed along the edges of the rim of more than half a circle in
section, into which the loops are loosely fitted, and when the tyre is being inflated
air is forced through the perforations, expanding the loops untill they fit tightly into
the recesses which being formed as before named prevents the return of the loops
and securely holds the tyre to the rim.
To release the tyre we withdraw the air pressure.
Improvements in Pneumatio Tyres and Rims for Cycles and other
Vehicles.
JOHN WHITEHEAD 42 Anglesey Street, Lozells. Birmingham. in the County of
Warwick, Art Metal Worker & JAMES ALFRED CRANE. 43 Villa Road Handsworth,
Birmingham Modeller 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 :-
The object of this Invention is to readily attach and detach the Tyre and to
dispense with an inner air Tube. We form the Tyre with loops along each edge but
of sufficient depth to enable the inner sides of the loops to be perforated and recesses
are formed along the edges of the Rim of more than half a circle in section into
which the loops are loosely fitted and when the Tyre is being inflated air is forced
through the perforations expanding the loops until they fit tightly into the recesses
which being formed as before named, prevents the return of the loops and securely
holds the Tyre to the Rim, to release the Tyre we withdraw the air pressure.
We may accomplish our purpose of forming the recesses on the Rim by making
it of two Parts, as shown in figure 3.

page_text: To prevent escape of air and to cover the spoke heads we make use of narrow belts
of india Rubber or otlier suitable material.
We now proceed to describe the accompanying drawings.
Fig. 1. represents in section a Kim constructed in accordance with our Invention.
a. a. are the recesses for the reception of the loops b. b. on Figure 4
Fig. 2. represents an alternative formation of the Rim, the sides of the recesses a. a.
coming towards each other.
Fig. 3. represents in section the Rim when formed in two parts.
Fig. 4. represents the Tyre partly in Section. a is the body of Tyre b. b. are the
loops. C. C. C. are the perforations for admission of air to the interior of loops b. b.
Fig. 5. represents in section the Tyre when fitted into the Rim described in Fig. 1.
a is the Tyre. b is the Rim. C. C. the perforations in loops.
Having now particularly described and ascertained the nature of our Invention
and in what manner the same is to be performed, we declare that what we claim is.
1. Rims formed' with recesses on edges of more than half a circle..
2. A Rim as drawn and described in Fig. 2.
3. A Tyre formed with loops for purposes of Inflation.
4. A Tyre having loops formed with holes for purposes of Inflation.
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