Improvements in Spring Wheels and Rims for Vehicles.
Year: 1896

page_text: Date of Application, 18th Aug., 1896
Complete Specification Left, 1 th May, 1897-Accepted. 19th June, 1897
Improvements in Spring Wheels and Rims for Vehicles.
I, JAMES BRIGGS, Moor Side Mill, Eccleshill, noar Bradford, in the County of
York, Spinner, do hereby declare the nature of this invention to be as follows:-
This invention relates to spring wheels and rins or tires for cycles; carriages
and other light vehicles; and its object is to provide a durable and resilient wheel
and rim.
For this purpose I construct the wheel with an annular rigid rim or spring
foundation and I connect an outer flexible rim to this rigid rim by means of a
series of helical springs. These springs may rest in suitable seats formed on the
said rims or they may be secured to them in any convenient manner and they may
be more or less compressed.
The sides of the annular space between the flexible and rigid rim may be closed
by a flexible cover and this cover may be in the form of a continuation of a
suitable india rubber or other tire.
DRACUP & NOWELL,
Bradford, Patent Agents..
'Improvements in Spring Wheels and Rims for Vehioles.
I, JAMES BRIGGS, of Moor Side Mill, Eccleshill, near Bradford, in the County
of York, Spinner, 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 :-
This invention relates to spring wheels and rims or tyres for cycles, carriages
and other light vehicles; and its object is to provide a durable and resilient wheel
and rim.
To fully describe my invention reference is made to the accompanying sheet of
drawings forming a part of this specification, in which similar letters of referonce
indicate corresponding parts in each of the figures.
Figure 1, represents a side elevation of a cyclo wheel.
Figure 2, represents a portion of the rim partly in section on a larger scale.
Figure 3, is a plan view of the same.
Figure 4, is a cross section of Figure 2 on the broken line a, b; and Figure 5,
is a similar section on line y, z.
Figure 6, represents a plan of a portion of the wheel without the flexible rim
and with the springs omitted excepting one.
Figure 7, represents a separate side view of two links of the flexible rim; and
Figure 8, is a plan view of the same.
Figure 9, is a view of a detail hereinafter referred to.

page_text: In the drawings the annular rigid rim or spring foundation A is an ordinary
wooden tyre with an aluminum band B3 secured round it but this construction
may be varied and is only used because it affords ready means of forming seats B2
for the spiral springs C.
The flexible rim or tyre consists of an endless chain composed of metal links D
connected together by rivets E. A metal bush F is preferably introduced between
each of the rivets and the clasps D 2 of the links. These bushes fit loosely on the
rivets as well as inside the clasps.
The inner ends of the springs C fit in the seats B 2 formed in the band B and
the springs are more or less compressed between these seats and the links D of
the flexible rim. The springs C are secured in position by the clainping pieces G
fixed over the end coils of the springs by the short bolts G 2 the heads G 3 of
which are held in the key-bole shaped slots H formed in the band B. A separate
view of one of the clamping pieces is shown in Figure 9. A slot N is made at
one end instead of an eye for the clamping bolt at that end to pass through in
order that the clamping piece may be turued aside to release the spring when the
clamping nuts are loosened.
To protect the springs and other parts from dirt a cover J is stretched over
them. This cover may be of somewhat the same form and may be made of the
same material as the cover of a pneumatic tyre. It may be secured in position by
the wires K extending round each edge. The ends of the wires may be coupled
together in any convenient way adapted to tighten them round the rim.
Having now particularly described and ascertained the nature of my said inveu-
tion, and in what manner the same is to be performed, I declare that what I
claim is :
1. A vehicle wheel having a flexible chain rim D connected to a rigid inner
rim A by springs C and enclosed by a cover J, substantially as herein shown and
described.
2. The improvements in vehicle wheels horein shown and described and
illustrated in the accompanying drawings.
Dated this 17th day of May 1897.
DRACUP & NOWELL,
Bradford, Patent Agents.