or relating to Elastic Tyres
Year: 1898

page_text: or relating to Elastic Tyres,
I, HENRY COOK, of 129, Church Street, Wolverton, Buckinghamshire, Carriage
Smith, do hereby declare the nature of this invention to be as follows:-
This invention refers to elastic tyres for wheels, and consists in the combina-
tion of a hollow rim with a special form of elastic periphery. The latter is
formed in two parts, the inner part consisting of a coiled spring, cork packing,
or a cushion tube having a centre air space, and the second or outer part being
a flat band with an elastic tube forming a cover for the cushion tube or other
interior. The outer part is made of rubber and is elastic but the inner part may
be of firmer consistency than the outer. The outer part is hollow and tubular
in form with projecting flanges furnished with beads or edges which overlap
and embrace the edges of the rim, and between these edges it presents when
compressed a curved or convex surface to the cavity of the rim which is left
empty or hollow beneath it. The tube and the flanges may be connected or
separate. If the latter then the flanges form an elastic diaphragm or band
stretched across the open curved rim.
In this way great resilience is obtained and the elasticity is equal to a pneu-
matic tyre.
T
1
.
improvements in or relating to Elastic Tyres.
I, HENRY COOK, of 129, Church Street, Wolverton, Buckinghamshire, Carriage
Smith, 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 refers to elastic tyres for wheels and consists in the combina-
tion of a hollow rim with a special form of elastic periphery. The latter is
formed in two parts, the inner part consisting of a coiled spring, cork packing
or a cushion tube having an air space and the second outer part being a flat
band or cover for an elastic tube, forming a cover for the cushion tube or other
interior. The outer part is made of rubber and is elastic, but the inner part
may be of firmer consistency than the outer.
[D7

page_text: The outer part is hollow and tubular in form with projecting flanges furnished
with beads or edges which overlap and embrace the edges of the rim and
between these edges it presents when conipressed a curved or convex surface to
the cavity of the rim which is left empty or hollow beneath it. The tube anil
the flanges may be connected or separate or the outer tube itself may be formed 5
in two parts, an inner and outer, one a flat clastic diaphragm over the hollow
rim and the other a cover or tread for the periphery of the wheel.
If the latter, then the flanges form an elastic diaphragm or band stretched
across the open curved rim. .
big
*
In this way great resilience is obtained and the elasticity is equal to a pneu-
matic tyre...
.
1.
I will now describe my invention with reference to the accompanying drawing
which shows a partial sectional elevation of a tyre? constructed according to my
invention.
A represents the core or centre of the tyre, which is formed of some light
springy materiál such as cork by preference and is slit radially as denoted by
slits. A which are optional.
B represents the layer of canvas which is double or treble thickness on the
tread side.
C represents the rubber tyre which is thicker on the tread side and has flanges
or beaded edges C and an elastic diaphragm C₁ which is stretched across the
rim D and is formed so as to leave an air space CH between the core A and tyre C.
D is the metal rim which has turned over edges suited to engage with the
flange (11
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). In a tyre for wheels of cycles and other vehicles and for like purposes
the combination of a solid or non-pneumatic core and a flexible cover part or
all of which is elàstic and imparts resiliency to the whole, as herein described
and set forth.
(2): In an elastic tyre for rims of wheels and the like purposes, the peculiar
construction of rim and tyre as shown consisting of the rim D, the tyre C with
diaphragm C¹, air space C", flanged edges C, the canyas lining B and elastic
core A as herein described and set forth.
(3). In an elastic tyre for wheels, the combination of a rubber tube with
thickened tread surface, and having an elastic diaphragm stretched across the
concavity of a hollow rim formed with turnover edges, said diaphragm having
thickened flanges at its lateral extremities to engage with said rim, said tyre
having a canvas lining of extra thickness towards the tread and having also
an inner core of cork or other elastic material, substantially as herein described
and set forth.
Dated this 10th day of September 1898
S. S. BROMHEAD,
Agent for Applicant, 171, Queen Victoria Street, E.C.