Improvements in Tyres and Rims for Wheels.
Year: 1897

page_text: Date of Application, 24th Feb., 1897
CL
00
Complete Innsitioation
PROVISIONAL SPECIFICATION.
Improvements in Tyres and Rims for Wheels.
I CHARLES SIDNEY DEANS of Roseden Longueville Jersey Coal, Hay, Straw and
Potato Merchant do hereby declare the nature of this invention to be as follows :-
A single tube detachable, pneumatic, wedge, Tyre thicker on the portion touching
the ground and permanently fastened to the two portions forming the wedge
hereafter mentioned, The said tyre to be made of India rubber and inflated with air
through an ordinary valve passed through the rim midway between any two Spokes,
or otherwise & passing through the junction of the two pieces of rubber which form
the wedge the opening on the inside being covered by a light piece of sheet rubber
forming a flap This said flap being continued throughout the whole length of the
Tyre and fastened permanently to one side of the wedge hereafter described. This
wedge is composed of India rubber in two sides, each side being half triangular in
shape and fastened permanently to each side of the Tyre and by the construction,
after being fitted into the rim and inflated, The two sides then being triangular form
a secure wedge in the said rubber lined rim and at the junction of the two pieces
which form the wedge, The rim inside is triangular in shape, made exactly to fit the
wedge on the tyre & is lined with India rubber, the two edges or ends being nearest the
tyre are brought inwards in a small circular curve forming a bed for the edges of the
wedge to fit into. The outside where the Spokes are fastened is a little circular in
shape causing the rim to be hollow.
Dated this 22nd der of Fahru 1007
Improvements in Tyres and Rims for Wheels.
I, CHARLES SIDNEY DEANS Roseden Longueville Jersey, Coal, Hay, Straw, and
Potato Merchant, 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 :-
A single tube detachable pneumatic wedge tyre thicker on the portion touching the
ground and permanently fastened to the two portions forming the wedge hereafter
mentioned, the said tyre to be made of india rubber and inflated with air through an
ordinary valve passed through the rim midway between any two spokes or otherwise,
and passing through or between the junction of the two pieces of rubber which form
the wedge, the opening on the inside being covered by a light piece of sheet rubber
forming a flap, this said flap being continued throughout the whole length of the tyre
and fastened permanently to one side of the wedge hereafter de-cribed. This wedge
[Price 8d.1

page_text: is composed of india rubber in two sides, each side being triangular in shape and
fastened permanently to each side of the tyre and by this construction after being
fitted into the rim and inflated the two sides form a secure wedge, in the said rubber
lined rim and at the junction of the two pieces which form the wedge. The rim
inside is triangular in shape, made to exactly fit the wedge on the tyre and is lined
with india rubber, the two edges or ends being nearest the tyre are brought inwards
in a small circular curve forming a bed for the edges of the wedge to fit into. The outside
where the spokes are fastened is a little circular in shape causing the rim to be
hollow.
In order that my invention may be fully understood, I will now refer to the annexed
drawings, in which :--
Figure 1. is a cross section of my tyre when open.
Figure 2. cross section when closed.
Figure 3. cross section of rim.
Figure 4. cross section shewing the tyre in position in the rim.
a and a¹ are two projections upon the split tube which has the flap or prolongation c
so that when the two wedge-shape projections are brought together and placed in the
rin and inflated the flap c forms a joint and prevents the escape of air. The rim & is
shaped as shewn in Figures 3 and 4, and at e clips around the wedge-shape
projections a & a¹. The inflation of the tyre is carried out in the ordinary manner,
the inlet being arranged so as to pass through or between the wedge-shape pieces in
a suitable position. The rim d is lined with rubber or the like flexible material as
shewn at f. It will be seen that by deflating the tyre it may be readily detached
from the rim and repaired internally.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is
1. The combined construction and arrangement of the various parts substantially
as described and illustrated herein.
2. In pneumatic tyres for cycles: a split tube having wedge shaped projections at or
about the edges of same so arranged that when the same are brought together and
placed in a rim of a corresponding shape or outline and the tyre inflated as to be held
securely in the rim ; an over-lapping flap being provided for rendering the junction
of the split tube air-tight; the wedge shaped pieces being provided upon the outside
of same at or about their junction with the tube or cover with an indentation or recess
in which the curved ends of the rim engage; said rim being lined with rubber or
other suitable material for the purpose of ensuring a tight joint and also rendering
the whole more secure owing to the better gripping surface obtained by the india
rubber lining in the rim.
Dated this 21st day of September 1897.