Improvements in or relating to Spring Tyres.
Year: 1898

page_text: Date of Application, 26th July, 1898
Complete Specification Left, 4th Jan., 1899-Accepted, 25th Feb., 1899
Improvements in or relating to Spring Tyres.
THOMAS BARBER WALKER, of Burford Villa, Nottingham Road, Arnold, Notting-
ham, Commission Agent, do hereby declare the nature of this invention to be as
follows;
-
This invention relates to improvements in spring tyres suitable for cycles and
road vehicles, the object being the construction of a tyre which will reduce to a
minimum the vibrations usually transmitted to the rider.
According to this invention a channel sectioned metal rim is used, and to this
rim there is firmly attached a number of hollow cases which are closed at their
lower ends and fitted with springs and wires or pistons capable of sliding therein.
Between the sides of the channel sectioned rim there is a flexible spring rim pre-
ferably covered with textile fabric or material. This rim is held in its normal
position by the spring wires or piston rods and may be provided with a rubber or
other tyre if desired. In some tyres the closed end of the hollow cases are con-
nected to a third rim to which some of the wheel spokes may be attached.
The hollow cases with the springs and pins may be arranged in one or more rows
and the channel sectioned rim, spring cases, and pins may be made of aluminim.
W. H. POTTER,
Patent Agent, Nottingham.
THOMAS BARBER WALKER, of Burford Villa, Nottingham Road, Arnold, Notting-
ham, Commission Agent, 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:-
―
This invention relates to improvements in spring tyres suitable for cycles,
motor-cars, and other light road vehicles, the object of the invention being the
construction of a spring tyre which will reduce to a minimum the vibrations
usually transmitted to the rider.
According to this invention there are three metallic rims, comprising an outer
channel sectioned rim, an inner rim which is by preference also of channel section
and a spring rim which is wrapped with textile material, rubber or other suitable
substance and is placed inside the channel of the outer rim. Between the inner

page_text: and the outer rim there are a number of spring cases or tubes containing springs
and pistons or rods the ends of which bear upon the spring rim. On the outside
face of the spring rim there is a rubber or other suitable tyre.
In the accompanying drawings which illustrate the method of carrying out this
invention
Fig. 1 is a section of the spring rim, and
Fig. 2 a part elovation of a complete wheel.
The outer rim a, of substantially the section shown, is provided with a number of
spring boxes or tubes b which are made with flanges c and collars d. Inside each
box there is a rod or piston and a spring f, the rod or piston being made with
an enlarged end to prevent the pins falling out during the construction of the
wheel. The inner or lower ends of the spring boxes or tubes b are fastened to the
inner rim g by screws h or other suitable means, and the upper ends of some or
all of the spring boxes or tubes may also be fastened to the outer rim a.
Inside the channel of the outer rim a there is a tempered steel spring rim k
which is covered with a textile fabric, rubber or other suitable material to prevent
the rim slipping on the ends of the rods e. On the outside of the spring rim and
fastened thereto, there is a solid rubber tyre m or the tyre may be hollow and it
may be inflated with air.
The spokes n are attached to the hub o in the usual manner and may be attached
to the inner rim as shown or they may be attached to the outer rim or partly to the
outer rim and partly to the inner rim or the spokes may be secured to both rims.
The springs may be arranged in a single row as shown or there may be more
than one row while the number of the springs and the strength of the same may be
varied according to the purpose for which the tyre is required.
The size of the spring rim and rubber tyre are so arranged that when the wheel
is completed and running they never at any part project beyond the edges of the
outer rim, but they can be forced over the edge of the outer rim at one side of
the same when at the other side the spring rim has been forced to the bottom
of the outer rim.
Having now particularly described and ascertained the nature of my said in-
vention and in what manner the same is to be performed, I declare that what I
claim is:-
A fyre for a cycle, motor-car or other light road vehicle constructed substantially
as herein described with reference to the accompanying drawings.
Dated this 3rd day of January 19.
W. H. POTTER,
Patent Agent, Brougham Chambers, Nottingham.
January 1o.
W. H. POTTER,
Patent Agent, Brougham Chambers, Nottingham.