Improvements in Wheel Tyres.
Year: 1892

page_text: Date of Application, 4th Mar., 1892
Complete Specification Left, 5th Dec., 1892-Accepted, 7th Jan., 1893
PROVISIONAL SPECIFICATION.
Improvements in Wheel Tyres.
We, ROBERT BONTHRON BLACK, Secretary and WILLIAM JONES, Manager,
both of The Clyde Rubber Works Company, Limited, Clyde Street, Port Dundas
in the City of Glasgow do hereby declare the nature of this invention to be as
follows:-
This invention which relates to wheel tyres especially for cycles and light
vehicles has for its object to obtain a high degree of elasticity and great lightness
in proportion to the diameter of tyre employed.
The improved tyre is composed of rubber or rubber compounds and is made from
perforated sheets which are rolled up into cylindrical or rope like form and covered
or partially covered by an external unperforated sheet or tube.
The rubber
sheeting is partially vulcanised to permit of perforating or cutting out the orifices
forming the perforations and to prevent cohesion into solid form of the rolled tyre
under the subsequent process of complete vulcanisation.
The tyre so formed having numerous air spaces throughout its thickness is
extremely light and elastic and by leaving the inner periphery uncovered adhesion
to the wheel rim on applying any of the usual cementing solutions is greatly
increased whilst the outer periphery may be protected by an external coating or
covering of rubber or rubber fabric vulcanised on to the tyre. The tyre may be
made of a single length to extend around the wheel rim or it may be made up of
short lengths strung together or separately affixed to the wheel rim.
Dated this Third day of March 1892.
CRUIKSHANK & FAIRWEATHER,
62, St. Vincent Street, Glasgow, Agents.
COMPLETE SPECIFICATION.
Improvements in Wheel Tyres.
We, ROBERT BONTHRON BLACK, Secretary, and WILLIAM JONES, Manager,
both of The Clyde Rubber Works Company, Limited, Clyde Street, Port Dundas
in the City of Glasgow 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 which relates to wheel tyres especially for cycles and light vehicles
has for its object to obtain a high degree of elasticity and great lightness in propor-
tion to the diameter of tyre employed.
As represented in the accompanying drawings in cross section at Figure 1 and as
partly unrolled in elevation at Figure 2 the improved tyre A is composed of rubber
or rubber compounds and is made from perforated sheets as indicated at A' which
are rolled up into cylindrical or rope like form and which may be covered or
partially covered by an external unperforated sheet or tube. The rubber
sheeting A is by preference partially vulcanised to permit of perforating or cutting
out the orifices forming the perforations and to prevent cohesion into solid form of
the rolled tyre under the subsequent process of complete vulcanisation. The tyre
so formed having numerous air spaces a throughout its thickness is extremely light
and elastic and by leaving the inner periphery uncovered as indicated at Figure
adhesion to the wheel rim on applying any of the usual cementing solutions is greatly
increased whilst the outer periphery may be protected by an external coating or
[Price 8d1
1

page_text: covering B of rubber or rubber fabric vulcanised on to the tyre. The tyre may be
made of a single length to extend around the wheel rim or it may be made up of
short lengths strung together or separately affixed to the wheel rim.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is
A wheel tyre composed of perforated sheet rubber rolled into rope like form and
vulcanised substantially as described.
Dated this 3rd day of December 1892.
CRUIKSHANK & FAIRWEATHER,
62, St. Vincent Street, Glasgow, Agents.