Improvements in Air-filled Elastic Tyres for Cycles.
Year: 1891

page_text: Date of Application, 8th Oct., 1891
Complete Specification Left, 21st Jan., 1892-Accepted, 27th Feb., 1892
PROVISIONAL SPECIFICATION.
Improvements in Air-filled Elastic Tyres for Cycles.
I, THOMAS JORDAN, of 56 Caledonia Terrace, Upper Grand Canal Street,
Dublin, Clerk, do hereby declare the nature of this invention to be as follows:-
This invention relates to improvements in air-filled elastic tyres for cycles, the
object of same being to considerably lessen the risks of side-slipping and puncturing
attendant upon the use of the ordinary air-filled or pneumatic tyre.
According to my invention, I form a series of raised ribs or projections on the
outer surface of the tyre, running parallel with each other in an oblique direction.
These raised ribs or projections can be formed upon the tyre, by being moulded
integrally with the tyre itself, or they may be fastened thereto separately, by means
of a suitable adhesive substance, or by any other suitable fastening means.
The invention refers more particularly to air-filled or pneumatic tyres, but it is
also applicable to solid, or cushion, or any form of elastic tyre at present in use.
The projecting ribs may be of a rounded, or square, or any other suitable form,
whichever is found desirable or convenient.
Dated this 8th day of Octo
AUGAN
HUGHES, SON & Co.,
38, Chancery Lane, London, W.C., Agents.
COMPLETE SPECIFICATION.
Improvements in Air-filled Elastic Tyres for Cycles.
I, THOMAS JORDAN, of 56 Caledonia Terrace, Upper Grand Canal Street,
Dublin Clerk, 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 relates to improvements in air-filled elastic tyres for cycles; the
object of same being to eliminate the risks of side-slipping and puncturing peculiar
to the air-filled or pneumatic tyre.
In the use of the ordinary inflated tyres; where a smooth rubber outer surface
was presented to the ground, a sharp stone or the like coming in contact with such
smooth surface was extremely liable to puncture same, and even penetrate the air-
chamber, thereby causing same to burst or disinflate, and so be frequently productive
of accidents.
Another source of danger attending the use of such tyres, was that of side-
slipping or "skidding" on slippery or greasy roads.
In order that my invention may be more readily understood, I have hereunto
annexed a sheet of illustrative drawings, wherein :-
Fig. 1. is an end elevation and Fig. 2. a side view of the invention.
a is an inflated tyre with an outer covering of india-rubber or other suitable
material. Placed parallel with each other and running in an oblique direction are
a number of raised ribs or projections a¹ as shewn. These raised ribs or
projections a' can be formed upon the tyre by being moulded or otherwise formed
integrally with same, or if found desirable or convenient they may be fixed to the
outer surface of the said tyre by means of cement, glue, or other adhesive
substance, or by wire or any other suitable fastening means.
•
In the drawing these raised ribs or projections a are shewn with a flat surface
which comes in contact with the ground, but they can, if desirable, be given a
semi-circular, or rounded, or any other suitable form,

page_text: Moreover they are shewn only partially encompassing the diameter of the tyre
but it is obvious that each rib or projection can be so formed as to entirely encircle
same if desirable.
My invention can be applied to solid, cushion, or any other form of cycle tyre,
though it is more especially intended for use with air-filled or pneumatic tyres.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
The improvements in tyres for cycles, consisting essentially of raised ribs or
projections placed parallel with each other in an oblique direction on the surface of
such tyres, substantially as described and shown and for the purpose set forth.
Dated this 21st day of Jannery 1899
HUGHES, SON & Co.,
38, Chancery Lane, London, Agents.