Improvements in or relating to the Wheels of Cycles or other Vehicles.
Year: 1897

page_text: Date of Application, 16th Nov., 1897
1000
Date of Application, 16th Nev., 1897
Complete Specification Left, 15th Aug., 1856-Accepted, 8th Oct., 1896
PROVISIONAL SPECIFICATION.
Improvements in or relating to the Wheels of Cycles or other
Vehicles.
We, ELIZABETH BARTRAM, of 96, Bard Street Park, Sheffield, in the County
of York, Gentlewoman, and HERBERT JOHN GURNEY, of 216, Darnall Road,
Sheffield, aforesaid, Spring-maker, do hereby declare the nature of this inven-
tion to be as follows:-
The object of our improvements in or relating to the wheel of cycles or other
vehicles is to construct them so that they guard the machine against vibration.
We construct the axle, spokes and rim like those of an ordinary cycle or other
wheel, and outside of the latter we form another rim at any suitable distance
from the inner rim, and attached thereto by a series of springs of W, zig-zag or
other shape, rivetted preferably to the outer rim and fastened to the inner rim
by nuts, which screw on to the spoke ends or can be rivetted or fastened in any
suitable manner; thus we have a wheel comprising a double-tyre construction.
The outer face of the outer rim is preferably hollowed or rounded so that the
hollows of the two rims face one another. On the outer rim on its outer face we
fasten fix or place any suitable india-rubber or other tyre, preferably solid so that
the circumference of the wheel shall have the shape of an ordinary pneumatic-
tyred wheel.
If necessary so as to prevent the dirt, wet, or the like from coming into contact
with the springs we enclose the rims and springs by waterproofing-canvas or
other material, and then affix our rubber tyre thereon.
It will be readily understood that the ordinary pneumatic tyre will therefore
be dispensed with as the vibration is taken up by the springs within the two rims.
The rims are not necessarily to be curved or rounded as flat or other shapes may
be adopted; the outer rim can be flanged at its sides. These wheels can be con-
structed for cycles, auto-cars or any other carriages.
Dated this 16th day of November 1897
BOULT & WADE,
Agents for the Applicants.

page_text: Sheffield, aforesaid, Spring-maker, do hereby declare the nature of this inven-
tion 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 wheels of cycles or other vehicles and has for its object
to lessen the vibration to which the machine is subject in passing over uneven
ground.
In the accompanying drawings:-
Figure 1 is a section, and
Figure 2 a side elevation of a portion of a wheel constructed according to this
invention.
Figures 3 & 4 are sections showing modifications.
Like letters indicate like parts throughout the drawings.
According to this invention a wheel is provided with an inner rim A of
U or other section and an outer rim B which may also be of U or other section
suitable for carrying a solid or other form of rubber tyre.
The two rims are connected together by flat metal springs C bent into the form
shown in Figure 2. The springs are soldered, rivetted, bolted or otherwise
secured to the rims as found convenient.
As shown in Figure 1 the outer rim B is adapted for the reception of a rubber
tyre of the solid or cushion type, while in Figure 3 the outer rim may either be
left uncovered or provided with a cover of rubber, leather or other material
adapted to form a noiseless tread.
Figure 4 illustrates another form both for the inner and outer rims, the latter
being shown with a solid rubber tyre D in position.
The shape of the springs C may be varied but the form shown is preferable.
If desired the two rims and the springs between them may be enclosed in a cover
of canvas, canvas and rubber or other material or combinations of materials.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed, we declare that what
we claim is:-
1. In a wheel for cycles and the like the combination with an inner and an
outer rim of springs for connecting the rims together and a rubber or like tread
for the outer rim with or without a cover enclosing the rims, springs and tread
substantially as described and illustrated in the accompanying drawings.
De 10th day of August 1
E. BARTRAM.
H. J. GURNEY.
Boult & Wade,
Agents for the Applicants.