Improvements in Pneumatic and other Tyres for the Wheels of Vehicles.
Year: 1897

page_text: Improvements in Pneumatic and other Tyres for the Wheels of
Vehicles.
I, JESTYN LEWIS, of 2 Fernleigh Villas, Wrexham Road, Slough, in the County
of Berkshire, Engineer, do hereby declare the nature of this invention to be as
follows:-
My invention relates to improvements in pneumatic and other tyres for the
wheels of vehicles, which consists of metal-treads or outer rims fitted on or over
pneumatic and cushion tyres.
In carrying my invention into practice I apply an outer metal rim of any
suitable section to the periphery of cushioned india rubber tyres; the rims for
cycles are made of slightly varying sections in order to suit the different forms of
tyres. The grip of the convex rubber tyre and the concave metal surfaces are
sufficient for fixing my apparatus to cycle tyres; but for carriage wheels with
tyres of solid india rubber I adapt a lug or spike to be placed at intervals in the
inside of the metal rim so that each lug or spike is embedded in the solid rubber.
Dated this 28th day of Tanum 1907
J. P. BAYLY,
18 Fulham Place, W., Agent for the Applicant.
Improvements in Pneumatic and other Tyres for the Wheels of
Vehicles.
I, JESTYN LEWIS, of 2 Fernleigh Villas, Wrexham Road, Slough, in the County
of Buckingham, Engineer do hereby declare the nature of this invention, and in
what manner the same is to be performed to be particularly described and ascer-
tained in and by the following statement:-
My invention relates to improvements in pneumatic and solid cushion tyres for
the wheels of vehicles, and consists in metal treads or metal outer rims of any
suitable section, fitted on to the peripheries of pneumatic and cushion tyres.
In carrying my invention into practice, I attach a metal outer rim of a suitable
section to the periphery of cushioned tyres; the rims for pneumatic tyres are made
...01

page_text: of slightly varying sections in order to suit the different forms of tyres. The grip
or friction of the convex surface of the rubber tyre and the concave surface of the
metal rim is sufficient for attaching them together, but for wheels with solid
cushion tyres they may be further secured by means of lugs or spikes fixed at
intervals on the inside of the metal rim, and holes bored in the cushion tyre to
receive such lugs or spikes.
And in order that my invention may be thoroughly understood, I now proceed
to describe the accompanying drawing thereof, reference being had to letters and
figures marked thereon.
Fig. 1, is a section of a pneumatic tyre fitted with a metal outer rim or tread.
Fig. 2, is a section of a solid cushion tyre of a light carriage wheel fitted with
a metal outer rim or tread and secured together by lugs or spikes.
Fig. 3, is a section of a solid cushion tyre of a heavy carriage wheel fitted with a
metal outer rim or tread.
For pneumatic tyres 6 fitted to an ordinary rim c as in Fig. 1, I construct a metal
outer rim or tread a and fit the same over the periphery of the pneumatic tyre
before it is fully inflated, the grip when the tyre is entirely inflated causes the
convex india rubber tyre and the concave metal rim to adhere rigidly together,
these metal outer rims or treads a may be made of any section, with grooves, or
indents, and to fit the various patterns of pneumatic tyre covers.
In Fig. 2, I illustrate a section of a solid tyre f fitted to an ordinary rim, g of the
wheel of a light carriage. To this said solid cushion tyre f on its periphery I fix
a metal outer rim or tread d, this said metal outer rim or tread d is formed with
turned in edges, in order to grip each side of the solid cushion tyre f, and may be
further secured by means of lugs or spikes e placed at intervals of about one foot
apart around the periphery of the tyre f.
In Fig. 3, I illustrate a section of a solid cushion tyre f¹ fitted to an ordinary
im of a heavy carriage wheel, to the periphery of the said solid cushion- tyre f¹ I
attach a metal outer rim, or tread h, this said 'metal outer rim or tread his formed
with turned in edges in order to grip cach side of the solid cushion tyre f', the
inside of the metal outer rim or tread h is provided with a rib i in order to fit in a
groove formed in the periphery of the solid cushion tyre f', the metal outer rim
or tread is attached to the tyre f¹ by being forced on to the periphery of the said
cushion tyre f¹.
The advantages of my invention are as follows:-
1. Protection of the cushion and pneumatic tyres from wear and puncture.
2. Additional strength due to the metal outer rims forming sustaining bands
around them.
3. The distribution of the strain of compression over the lower half circle of the
cushion tyres, maintaining a true circular form of wheel, and by avoiding a flat
tread or bearing surface increasing the facility of motion, and as regards the
pneumatic tyres maintaining the quality of resilience at a comparative low
pressure of inflation.
Having now particularly described and ascertained the nature of my said
Invention, and in what manner the same is to be performed, I declare that what I
claim is :-
1. In pneumatic tyres, outer metal rims or treads fitted to their peripheries,
substantially as herein described and according to Fig. 1, of the accompanying
drawing.
2. In solid cushion tyres for wheels of light vehicles, metal outer rims fitted to
their peripheries, substantially as herein described and according to Fig. 2, of the
accompanying drawing.
3. In solid cushion tyres for wheels of heavy vehicles, metal outer rims fitted
to their peripheries, substantially as herein described and according to Fig. 3, of
the accompanying drawing.
4. Metal outer rims or treads of various sections, fitted to pneumatic and solid

page_text: cushion tyres of vehicle wheels, substantially as above described in this specifica-
tion for the purpose specified.
Dated this 24th day of September. 1897.
J. P. BAYLY,
18 Fulham Place, Paddington, W., Agent for the Applicant.