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, 29th Dec., 1893
Complete Specification Left, 28th Sept., 1894-Accepted, 3rd Nov., 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 of 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 is designed to prevent puncture & slip, to increase speed and produce self-
fastening. This we effect. by mounting the inflatable india-rubber or other tube,
which may be encased in canvas or otherwise, on the ordinary rim of the wheel.
Round the outside of the inflatable tube we mount a solid or other rim composed
of aluminium, steel, or other suitable metallic or other materials. This solid or
other rim is semi-circular in cross section and extends down each side of the
inflatable tube to its centre or thereabouts so that very little space is left unprotected.
This part of the inflatable tube may be covered witli canvas or other materials to
protect the same. The outer periphery of the solid or other rim may be provided
with a flat, corrugated, or other sole, composed of either india-rubber, leather,
wood, or other suitable materials secured in any convenient manner.
In the case
of employing india-rubber the same may be vulcanized to the said metallic solid or
other rim.
Dated the 28th December 1893,
EDMUND CHADWICK, F.I.C.P.A.,
Agent.
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, of 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 is designed to prevent puncture and slip, to increase speed and produce self-
fastening. This we effect by mounting the inflatable india-rubber or other tube,
which may be encased in canvas or otherwise, on the ordinary rim of the wheel.
Round the outside of the inflatable tube we mount a solid or other rim composed
of aluminium, steel, or other suitable metallic or other materials. This solid or
other rim is semi-circular in cross section and extends down each side of the
inflatable tube to its centre or thereabouts so that very little space is left unprotected.
This part of the inflatable tube may be covered with canvas or other materials to
protect the same. The outer periphery of the solid or other rim may be provided

page_text: with a flat, corrugated, or other sole, composed of either india-rubber, leather,
In the case
wood, or other suitable materials secured in any convenient manner.
of employing india-rubber the same may be vulcanized to the said metallic solid or
other rim.
DESCRIPTION OF DRAWINGS.
Fig. is a transverse section of our invention for carriage or other vehicle
wheels, and Fig. 2 is a transverse section of the same for cycles.
A is the inflatable india-rubber or other tube; B canvas or bag encircling the
same, and C the ordinary wheel rim.
Round the outside of the inflatable tube A and canvas or bag B is placed the
solid or other rim D composed of either aluminium, steel, or other suitable metallic
or other material. The solid or other rim D extends down each side of the
inflatable tube A to its centre or thereabouts, as shown in the drawings, by which
little space
very
is left unprotected, therefore puncture is entirely prevented by
ordinary usage. The outer periphery of the solid or other rim D is recessed in
which is placed the sole G composed of either india-rubber, leather, wood, or other
suitable materials secured in any convenient manner. The solid or other rim D
may be of the form shown in Fig. 2, and to which may be secured the outer india-
rubber covering G. When the sole G is composed of india-rubber the same may-
if desired-be vulcanized to the metallic rim D. By employing the solid or other
rim D and the sole G puncture is prevented, increased speed established, and the
pneumatic tube is self-fastening on the wheel rim C owing to the rigidity of the
outer rim D, which will not yield outwardly therefore the pressure is inwardly by
which the pneumatic tube is firmly secured thereon.
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 :--
с
In combination with pneumatic tyres of wheels for bicycles, tricycles, carriages.
and other road vehicles, the use of the rim D with or without the sole G,
substantially as described.
Dated the 26th of September 1894.
EDMUND CHADWICK, F.I.C.P.A.,
Agent.