mprovements in and relating to Tyres and Rims for the Wheels of Cycles and other Vehicles.
Year: 1894

page_text: Date of Application, 11th Dec., 1894-Accepted, 2nd Feb., 1895
COMPLETE SPECIFICATION.
mprovements in and relating to Tyres and Rims for the Wheels of
Cycles and other Vehicles.
I WILLIAM MCPHAIL of Roseville Wicklow, in Ireland, Printer do hereby
leclare 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
tatement:-
My invention relates to improvements in and relating to tyres and rims for the.
wheels of cycles and other vehicles, which consists of a grooved india rubber tyre,
composed of short cellular sections, with wall of rubber in one end of each, and
cemented together to form one whole tyre, and a curved metal or steel rim, in two
parts, the larger part of rim with buttons or hooks, or nuts and screws; the smaller
part with slots, and round button hole in end of each slot, and buttons or hooks and
fastened together with movable plate, steel ring or spring clasp. Small bands of
leather or tough rubber are placed between the grooves in the rubber tyre and the
curved edges of the rim as cover fasteners, and to protect the rubber grooves
from injury.
And in order that my said invention may be more readily understood, I will
proceed to describe the accompanying drawings
Fig. 1, represente a transverse section of the india-rubber tyre with cover, and
metal rim in two parts fastened together by means of buttons and movable plates;
Fig. 2, is a transverse section of an alternative plan; and Fig. 3, a plan of the
inner periphery of the rim shewing the method whereby the two parts constituting
same are securely bound together as hereinafter more fully described.
The india-rubber tyre a, is constructed with a longitudiual opening b, in short
sections with a tubular or other shaped india-rubber air cell, enclosed in each
section, the opening in each section being closed at one end in the casting with a
wall or partition of rubber, one half of whose thickness lies inside the hollow, while
the other half projects outside and both ends are closed in the cementing of the
sections together, to form one whole tyre.
The tyre thus composed is grooved on either side to allow of its being firmly
grasped by the curved longitudinal edges of the rim.
A shield or dust cover e, of rubber or other suitable material is provided round
the tyre, the longitudinal edges e¹, of which are thickened by bands or strips of
rubber solutioned thereto whereby the shield or cover is held by the edges of the
rim; and also the india-rubber air tubes protected from injury by chafing with the
metal edges.
The main part c, of the rim is provided with buttons f, and hooks g', which
engage in corresponding slots formed in the second part d, of the rim, and the two
parts are firmly held together by means of movable or sliding plates h, inserted
between the hook g' fixed to the main rim, and the hook g fitted to the half rim,
and secured by means of a thumb screw, ring, or clamp to a small standard or
arm i.
It will be obvious that according to my invention, the operation of securing the
tyre to the rim is rendered extremely simple, and expeditious, and that the former
can be secured to the latter without the aid of wires, hooks, or other mechanical
contrivances at present in use for the purpose.
It will be understood that the foregoing description is given for illustration, and
that the parts, shapes, and materials may be varied in many ways within the scope
f my invention

page_text: 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 :-
First. In tyres for cycles and other vehicles, the shape and combination of the
hollow india-rubber sectional tyre a, with an india-rubber air cell placed in each
section for the purpose of imparting to the tyre the necessary resiliency; and a
rubber band inserted in each groove of tyre as a cover fastener and tyre protector,
in the manner substantially as herein described and illustrated in the accompanying
drawings.
Second. In wheels for cycles and other vehicles, the use and application of a
metal rim composed of two parts cand d, with their outer longitudinal edges curved
or bent inwards to grasp the rubber tyre as shewn, the said two parts being secured
together by means of buttons, hooks, and plates, in the manner substantially as
herein specified and set forth in the accompanying drawings.
Dated the 4th day of December 1894.
WILLIAM MCPHAIL.