Wheels with rubber tyres are the common form. Wheels with a loose flat
tyre outside a fixed tyre and with various forms of springs inserted
between the tyres. (See Springs, Section 80.)
=609. Huxley’s wheel,= with spring tyre and jointed spokes.
=610. Wheel with double tyres= and intermediate springs.
=611. Two plans of bent spoke, spring formation.=
=612. Two plans of bent spoke, spring formation.=
=613. Has an outer elastic tyre= and an inner rigid ring, to which the
tension or compression springs are fixed.
=614 & 615. Sections of rubber tyres.=
Wheels are also made with rubber rings applied between the boss and
shaft so as to allow a limited amount of elasticity between the wheel
and axle.