Improvements in and relating to Elastic Tyres for Cycles and Light Vehicles.
Year: 1896

page_text: Date of Application, 20th Apr., 1896
Complete Specification Left, 19th Feb., 1897-Accepted, 20th Mar., 1897
PROVISIONAL SPECIFICATION.
Improvements in and relating to Elastic Tyres for Cycles and Light
Vehicles.
WILLIAM GOODWIN BRIGHTLING of 73 Stockwell Park Road, Brixton, S. W.,
Engineer's Manager of Orders Department, do hereby declare the nature of this
invention to be as follows:-
The object of the present invention is to provide a resilient tyre for bicycles,
tricycles, and other light vehicles, which will be unaffected by the punctures to be
met with, when travelling on the road, such punctures being, in the case of the air
inflated or pneumatic tyres now in use, a fruitful source of inconvenience and
delay.
According to my invention, the tyre consists of a strip of tempered steel or
similar clastic metal, rolled or shaped into a hoop of tubular form, the edges being
turned inwards, and left open.
The space between the turned-in edges of the open tube is closed by india
rubber or similar material, which forms the tread of the wheel, and may be
secured in any convenient manner to the metal. The edges of the metal tube
being thus joined by elastic material only, a tyre of considerable resilience is
obtained, which is also unaffected by punctures completely destructive to a
pneumatic tyre.
The elastic metal tube may itself constitute the wheel rim, and may carry the
spokes, or it may, if preferred, be attached to a separate rim, provided the elasticity
of the tube is not thereby impaired.
Dated this 19th day of May 1896.
NEWTON & SON,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in and relating to Elastic Tyres for Cycles and Light
Vehicles.
I WILLIAM GOODWIN BRIGHTLING of 73 Stockwell Park Road, Brixton, S. W.,
Engineer's Manager of Orders Department, 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 the present invention is to provide a resilient tyre for bicycles,
tricycles, and other light vehicles, which will be unaffected by the punctures to be
met with when travelling on the road, such punctures beiug, in the case of the
air-inflated or pneumatic tyres now in use, a fruitful source of inconvenience and
delay.

page_text: According to my invention, the tyre consists of a strip of tempered steel or
similar elastic metal, rolled or shaped into a hoop of tubular form, the edges being
turned inwards and left open.
The space between the turned-in edges of the open tube is closed by india
rubber or similar material, which forms the tread of the wheel, and may be
secured in any convenient manner to the metal. The edges of the metal-tube
being thus joined by elastic material only, a tyre of considerable resilience is
obtained, which is also unaffected by punctures completely destructive to a
pneumatic tyre.
The elastic metal tube may itself constitute the wheel rim, and may carry
the spokes, or it may, if preferred, be attached to a separate rim, provided the
elasticity of the tube is not thereby impaired.
In the accompanying drawing, I have shown, in transverse section, a tyre
embodying my invention.
Fig. 1 shows a large and somewhat strong construction, suitable for use in motor
cycle wheels.
Fig. 2 shows a somewhat smaller and lighter tyre.
In Fig. 1, a is a metallic rim, to which the spokes bare secured. c is an clastic
metallic hoop, of tubular form, secured to the rim a in any suitable manner.
In Fig. 2, the rim a is dispensed with, and the spokes 6 are secured to the hoop c
.direct.
The tubular hoop c is made from a strip of steel or other suitable springy or
elastic metal, bent into tubular form, the edges of the strip, however, being turned
inward, instead of lapping or abutting together. Thus, there is left an open space
for the reception of the rubber or equivalent elastic substance which is to form the
tread of the wheel.
The attachment of the rubber d may be variously effected, but in the drawing
I have shown a rubber strip d with a longitudinal rib d', which engages with the
curved-in edges of the metal hoop c, the strip d having also outer strips d², of
canvas or its equivalent, lapping the outside of the hoop c, to which they may be
-cemented.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
The herein before described tyre for cycles and other light vehicles, comprising a
hoop of elastic metal strip shaped into tubular form, with its edges turned inward,
and left open, the space between the turned-in edges being filled by india rubber
or similar material, to form the tread of the wheel, in the manner set forth.
Dated this 17th day of February 1897
NEWTON & SON,
Agents for the Applicant.