Improvements in and relating to the Construction of Pneumatic Tyres of Wheels for Bicycles, Tricycles, Carriages, and other Road Vehicles.
Year: 1893

page_text: Date of Application, 20th Dec., 1893
Complete Specification Left, 19th Sept., 1894-Accepted, 20th Oct., 1894
PROVISIONAL SPECIFICATION.
Improvements in and relating to the Construction of Pneumatic
Tyres of Wheels for Bicycles, Tricycles, Carriages, and other
Road Vehicles.
We, NORMAN KNOWLES and WILLIAM PHILIPSON, trading under the style or
firm of The Mersey Rubber Company, Bank Quay, Warrington in the County of
Lancaster, India-rubber Manufacturers, do hereby declare the nature of our
said invention to be as follows:-
This invention refers to improvements in and relating to the construction of
pneumatic tyres of wheels for bicycles, tricycles, carriages, and other road vehicles,
and consists in means for attaching the outer cover of a pneumatic tyre to the rim
of a wheel so as to facilitate its removal in case of repairs or otherwise. The
outer cover is composed of india-rubber or other suitable material or substance
provided on each edge or side with preparations for locking the joint circum-
ferentially, the latter being effected by a flexible metallic ring-preferably tinned
or nickel-plated steel-disposed inside the inner periphery of the outer cover and
outside the inflatable tube, which, when the latter is inflated, increases its diameter
and firmly secures the whole to the ordinary crescent or other form of wheel rim
on which it may be mounted. The metallic flexible ring may be constructed with
an open, butt, overlap, or other joint to allow the same to expand to the diameter
of the inflatable tube, or may be made in segments and secured if desired or
necessary by bolts and wing or other nuts or otherwise. The air valve employed
in connection with the inflatable tube is fixed in the most convenient manner or
place to allow of the metallic flexible ring operating to securely lock the ends of
the outer cover in an efficient manner when the internal air tube is inflated or
under pressure.
Dated the 19th December 1892.
EDMUND CHADWICK, F.I.C.P.A.,
Agent.
COMPLETE SPECIFICATION.
Improvements in and relating to the Construction of Pneumatic
Tyres of Wheels for Bicycles, Tricycles, Carriages, and other
Road Vehicles.
We, NORMAN KNOWLES and WILLIAM PHILIPSON, trading under the style or
firm of The Mersey Rubber Company, Bank Quay, Warrington in the County of
Lancaster, India-rubber Manufacturers, do hereby declare the nature of our said
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 improvements in and relating to the construction of
pneumatic tyres of wheels for bicycles, tricycles, carriages, and other road vehicles,
and consists in means for attaching the outer cover of a pneumatic tyre to the rim
of a wheel so as to facilitate its removal in case of repairs or otherwise. The outer
cover is composed of india-rubber or other suitable material or substance provided
on each edge or side with preparations for locking the joint circumferentially, the
latter being effected by a flexible metallic ring-preferably tinned or nickel-plated
steel-disposed inside the inner periphery of the outer cover and outside the

page_text: inflatable tube, which, when the latter is inflated, increases its diameter and firmly
secures the whole to the ordinary crescent or other form of wheel rim on which it
may be mounted. The metallic flexible ring may be constructed with an open,
butt, overlap, or other joint to allow the same to expand to the diameter of the.
innatable tube, or may be made in segments and secured if desired or necessary by
bolts and wing or other nuts or otherwise. The air valve employed in connection
with the inflatable tube is fixed in the most convenient manner or place to allow of
the metallic flexible ring operating to securely lock the ends of the outer cover in
an efficient manner when the internal air tube is inflated or under pressure.
innatable tube, or may be made in segments and secured if desired or necessary by
bolts and wing or other nuts or otherwise. The air valve employed in connection
with the inflatable tube is fixed in the most convenient manner or place to allow of
the metallic flexible ring operating to securely lock the ends of the outer cover in
an efficient manner when the internal air tube is inflated or under pressure.
DESCRIPTION OF DRAWINGS.
Fig. 1 is a section of our improved pneumatic tyre, and
Fig. 2 is a side elevation of flexible ring with overlapping joint.
The inflatable tube A is encased in the canvas or other bag C, over which is
placed the outer cover B composed of india-rubber or other suitable material or
substance provided with the preparations D to lock the joint circumferentially.
The locking of the joint is effected by means of the flexible metallic ring E disposed
inside the inner periphery of the outer cover B and outside the inflatable tube A,
which, when the latter is inflated, increases its diameter and firmly secures the
whole to the wheel rim or crescent G. The flexible metallic ring E is constructed
with the overlapping joint H as shown in Fig. 2 to allow the same to expand to
the diameter of the inflatable tube A.
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 :-
In pneumatic tyres of wheels for bicycles, tricycles, carriages, and other road
vehicles the combination of the outer cover B composed of india-rubber or other
suitable material or substance provided with the preparations D and the flexible
metallic ring E for the purpose specified, substantially as described.
Dated the 17th September 1894.