Improvements in Rubber Tyres for the Wheels of Cabs and other Vehicles.
Year: 1895

page_text: Date of Application, 17th July, 1895
Complete Specification Left, 19th Aug., 1895-Accepted, 19th Oct., 1895
Improvements in Rubber Tyres for the Wheels of Cabs and other
Vehicles.
I, HUGH FAULKNER, of Saint Mary's Mills, Leicester, in the County, of
Leicester, Manufacturer, do hereby declare the nature of this invention to be as
follows
My invention relates to rubber tyres for cabs and other vehicles, and it is particu-
larly applicable to solid tyres, but may also be used with hollow tyres, provided the
aperture be not too large.
In manufacturing cab tyres according to present methods, a length of rubber
of suitable section is made straight, and then bent round the wheel rim, and attached
to the wheel by various devices. The rubber forming the tread of the tyre is thus
put into a state of tension, and in the event of any cutting taking place, the cut
opens or gapes.
The object of my invention is to so arrange that the tread of the rubber tyre,
instead of being in a state of tension, when placed upon the rim, is in a state of
compression, so that in the event of cutting, the cut remains closed.
My invention consists in forming the length of rubber of proper section in the
first instance, as a curved piece, preferably a circular piece, the circle or curve being
arranged of smaller diameter or radius than the diameter or radius of the wheel to
which it is to be applied.
I build up the wheel tyre in several lengths round the rim, and to cause the
rubber to fit the rim, I spring out its inner surface, and thus compress its outer
or tread surface. The tread surface, in contact with the road, by this device
is put into a state of compression, and is not liable to open if the tread should
be cut.
. I prefer to build up my rubber tyre round the wheel in two or more lengths,
and I may make it of dove tail section towards the wheel rim, and arrange the
wheel rim of corresponding dove tail section, to hold the rubber tyre.
I do not confine myself, however, to any special section so long as the tread is
put into a state of compression, by forming the rubber to a curve of smaller radius
in the first instance, and then, expanding to the curve of larger radius to fit the
wheel.
Instead of forming my rubber tyre in several pieces, I may make it in one
piece of the necessary circumference and coil it in a spiral of smaller diameter
than the wheel, while making in the first instance. I then uncoil this spiral to make
it spring over the wheel, and so I place the rubber of the tread in a state of
compression.
MARKS & CLERK,
18, Southampton Buildings, London, W.C., and
13, Temple Street, Birmingham, Agents for the Applicant.

page_text: Improvements in Rubber Tyres for the Wheels of Cabs and other
Vehicles.
I, HUGH FAULKNER, of St. Mary's Mills, Leicester, in the County of
Leicester, Manufacturer, 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 :-
My invention relates to rubber tyres for cabs and other vehicles, and it is particu-
larly applicable to solid tyres, but may be also used with hollow tyres, provided the
aperture be not too large.
In manufacturing cab tyres according to present methods, a length of rubber of
suitable section is made straight, and then bent round the wheel rim, and attached
to the wheel by various devices. The rubber forming the tread of the tyre is thus
put into a state of tension, and in the event of any cutting taking place, the cut
opens or gapes.
The object of my invention is to so arrange that the tread of the rubber tyre,
instead of being in a state of tension, when placed upon the rim, is in a state of
compression, so that in the event of cutting, the cut remains closed:
Referring to the accompanying sheet of drawings ;-
Figure 1 is an elevation of a wheel with rubber tyre put on in sections in
accordance with my invention.
Figure 2 is a transverse section corresponding to Figure 1,
Figure 3 is a circled rubber part ready to be spread out to form the segment of
Figure 1.
Figure 4 represents the same rubber part as Figure 3 but drawn to a larger
'section, and
Figure 5 is a spiral rubber which may also be used to carry out my invention.
My invention consists in forming the length of rubber of proper section in the
first instance, as a curved piece, preferably a circular piece such as A. Figure 3, the
circle or curve being arranged of smaller diameter or radius than the diameter or
radius of the wheel B Figures 1 and 2 to which it is to be applied.
I build up the wheel tyre in several lengths as A A A A round the rim,
and to cause the rubber to fit the rim, I spring out its inner surface, and thus
compress its outer or tread surface. The tread surface, in contact with the road,
by this device is put into a state of compression, and is not liable to open if the
tread should be cut.
I prefer to build up my rubber tyre round the wheel in two or more lengths, and
I make it of dove tail section as shown in Figure 4 towards the wheel rim, and
arrange the wheel rim of corresponding dove-tail section, to hold the rubber tyre.
In the example shown at Figures 1 and 2 1 build up the tyre in six lengths all
originally of the circular section shown in Figure 3.
I do not confine myself, however, to any special section so long as the tread is
put into a state of compression, by forming the rubber to a curve of smaller radius
in the first instance, and then expanding it to the curve of larger radius to fit the
wheel.
Instead of forming my rubber tyre in several pieces, I may make it in one piece
of the necessary circumference and coil it in a spiral of smaller diameter than the
wheel, while making in the first instance. I then uncoil this spiral to make it spring
over the wheel, and so I place the rubber of the tread in a state of compression;
such a spiral is shown at Figure 5.

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-
1. Forming the rubber tyre of a wheel in separate lengths which lengths are
each shaped or moulded at first to a curve of smaller radius than the curve of the
wheel rim and then sprung out to fit the rim substantially as herein set forth.
2. The wheel tyre hereinbefore described with reference to the accompanying
drawings.
LOUD.
MARKS & CLERK,
18, Southampton Buildings, London, W.C., and
13, Temple Street, Birmingham, Agents for the Applicant.