Year: 1898

page_text: I, JAMES GELLATLY, of West End, South Queensferry, North Britain, Foreman
Maltman, do hereby declare the nature of this invention to be as follows:-
:--
This invention relates to improvements in wheels for cycles and other vehicles
and has for its object to dispense with the usual pneumatic tyre which is so liable
to puncture.
I obtain the necessary elasticity by constructing part of the inside of the
wheel with springs or elastically arranged spokes.
In accordance with one method of carrying out my invention I employ an
ordinary outer iron rim fitted with an ordinary solid rubber or cushion tyre.
Between the said rim and the axle is another rim. This inner rim is supported
by means of ordinary straight spokes the one end of the spokes being fitted into
the said inner rim and the other end of the spokes being fitted into the axle.
Between the said inner rim and the outer rim I arrange a series of curved flat
springs or spokes. They may be say ½ of an inch in breadth and 16th of an
inch thick. The one end of the said springs is rivetted to the outer rim by say
one rivet the other end of the springs being fixed to the inner rim by say two
rivets. The said flat springs are not arranged diametrically or radially but their
inner ends are fixed in a tangential direction relatively with the inner rim, in
such a manner that the said inner rim is carried elastically by the flat curved
springs which surround it. Under this arrangement the inner rim need only
consist of a flat metal hoop say ½ of an inch in breadth.
I claim that true elasticity or cushioning effect is attained by this said curved
flat spring; each spring being independent of the other so that any breakage can
be readily repaired.
As a modification the said curved flat springs may take the place of the herein-
before referred to inner spokes. In which case there may be ordinary straight
spokes between the outer rim and the inner rim.
Or instead of the said straight spokes I may employ another set of curved
flat springs but preferably curved in an opposite direction to the inner springs.
As a further modification, instead of using curved flat springs constructed and
arranged as hereinbefore described I may employ metal hoops or rather, half
hoops that is to say a flat spring is bent into a U shape, the free ends of which
are rivetted to the inner rim, the centre or top of the bow being rivetted to the
outer rim. These said springs are arranged with a space between them of a
sufficient size to allow similar springs to have their free ends rivetted to the
outer rim, thus producing a double spring arrangement.
As a further modification I may substitute a pneumatic tube for the metal
springs, between the outer rim and the inner rim. In this case however the inner
rim is not approximately at the middle of the diameter of the wheel as in the
other arrangements; or some distance from the outer rim but is brought near to
or in proximity with the outer rim so that the interposing pneumatic tube need

page_text: not be of abnormal large size. The inner spokes may be fixed to a rim which rim
is in proximity with the pneumatic tube. This rim may be tubular and it may
have round it a series of solid indiarubber balls, which balls are the medium
between the said rim and the pneumatic tube.
I, JAMES GELLATLY, of West End, South Queensferry, North Britain, Foreman
Maltman, 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:-
1-
This invention relates to improvements in wheels for cycles and other vehicles
and has for its object to dispense with the usual pneumatic tyre which is so liable
to puncture.
I obtain the necessary elasticity by constructing part of the inside of the
wheel with springs or elastically arranged spokes.
But in order that my said invention may be more readily understood and easily
carried into effect I will proceed to describe the same with reference to the accom-
panying drawings in which
Fig. 1 is an elevation and
Fig. 2 a section of a portion of a cycle wheel shewing my improvements
applied thereto.
Referring to the said drawings I employ an iron or other metal rim A situated
at any convenient position between the outer rim, which may be of any ordinary
construction and fitted with solid or cushion tyres, and the hub or axle of the
wheel. This inner rim which I term an "inside binding" is supported by means
of the ordinary straight spokes B the one ends of which are fitted to the said
binding and the other to the hub or axle. Between the binding A and the outer
rim I arrange a series of curved flat springs or spokes C say a ½ of an inch broad
and 16th of an inch thick. The one end of the said springs is attached to the
outer rim by say one rivet c, or screw, and the other end to the binding by say
two rivets c, or screws. The said flat springs are arranged as shewn so that the
said binding is carried elastically by the flat curved springs which surround it.
I claim that true elasticity or cushioning effect is attained by the said curved
flat springs, which being independent of each other allow any breakage to be
readily repaired.
The said curved springs are preferably cut away slightly at each side to lessen
their weight, as shewn in Fig. 2.
The drawing merely illustrates one example and I desire it to be understood
that the distance between the binding and outer rim, the number of springs
employed and other details may be varied as desired.
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. The improved wheel for cycle and other vehicles constructed in the manner
as hereinbefore described and shewn in the accompanying drawings.
2. In wheels for cycles and other vehicles, the inner rim or inside binding A

page_text: situated between the outer rim and the hub of the wheel and elasti-
cally secured to the outer rim by the metal springs C constructed and arranged
in the manner as hereinbefore described and shew, in the accompanying
drawings.
3. The construction and formation of the springs C and the mode of attaching
same to the inner rim or inside binding and outer rim of the wheel, substantially
as herein before described and shewn in the accompanying drawings.
ידי
JOHNSONS,
Applicant's Agents, 115, St. Vincent Street, Glasgow.