Improvements in or relating to Flexible Tyres..
Year: 1893

page_text: Date of Application, 13th June, 1893
Complete Specification Left, 13th Mar., 1894-Accepted, 28th Apr., 1894
PROVISIONAL SPECIFICATION
Improvements in or relating to Flexible Tyres..
I, CLEMENT RICHARDSON, of Lützen, Glenagary, in the County of Dublin,
Mechanical Engineer, do hereby declare the nature of this invention to be as
follows:-
This invention has reference to that class of wheel now known as the "Persil "
and consists in forming that part which in the "Persil" wheel is the outer flexible
band, in segments or links of suitable length jointed or hinged together preferably
at the points of attachment of the springs. I may prefer to use a double joint or
hinge in connecting each segmental length. These segmental lengths may be made
of suitably tempered metal or the tyre may be composed of a chain of links.
The springs used can be of any well-known or suitable character but I may
prefer to employ springs of a special form each one being constructed in one
length of steel or equivalent wire so formed at its centre as to afford means of
The wire is continued in
attaching it to the rigid or inner rim of the wheel.
either direction in such a manner that it forms a seat. It is then turned into two
vertical coils, one on each side of the inner or rigid rim, the ends being continued
to form the means of attachment either directly or indirectly to the hereinbefore
mentioned segmental lengths or links.
Dated this 12th day of June 1893.
A. F. SPOONER,
124, Chancery Lane, W.C., Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in or relating to Flexible Tyres.
I, CLEMENT RICHARDSON, of No. 10 Waterloo Road, (formerly of Lützen,
Glenagary) in the County of Dublin, Mechanical Engineer, 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 has reference to that class of wheel now known as the "Persil "
wheel wherein springs are interposed between an inner rigid rim and an outer
flexible band.
My invention consists in forming that part which in the "Persil " wheel is the
outer flexible band in segments or links of suitable length jointed or hinged
together, and it consists further in the employment of springs of novel character.
In the accompanying drawing-
Fig. 1 shows a side view of part of a wheel, and
Fig. 2 shows the periphery with part of the segmental tyre a cut away.
A is the inner rigid rim, C represents the springs, D the spokes of the wheel.
According to my invention the outer flexible tread of the wheel is composed of
segments or links a jointed or hinged together as at 6 preferably at the points of
attachment of the springs as shown, or I may prefer to use a double joint or hinge
in connecting each segmental length. These segmental lengths may be made of
suitably tempered steel. In lieu of such segmental lengths of metal linked or
hinged together to form the outer flexible tread, I may employ a chain of links of
small dimensions passing round the periphery of the wheel.

page_text: The springs used can be of any well-known or suitable character but I generally
prefer to employ those of the special form shown in the drawing. According to
this part of my invention each spring is constructed from one length of steel or
equivalent wire formed with a loop c at its centre for the purpose of attaching it to
the rim A by the bolt d. The wire is continued in either direction as at e so
that it forms a seat. It is then turned into two vertical coils f, f' one at each side
of the wheel, the ends terminating in loops 9, g¹ to form the means of attachment
to the hereinbefore, mentioned segmental lengths preferably by engagement with
the hinge bolt h.
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. In a wheel having an inner rigid rim and springs or other elastic projections
secured thereto, the combination of an outer flexible tyre formed of segmental
lengths of metal jointed or hinged together or their equivalents substantially as set
forth.
2. In a wheel, the combination, with an inner rigid rim and outer flexible tread,
of springs each formed with two vertical coils and provided with means for
attachment substantially as set forth.
3. The combination and arrangement of parts constituting my improved flexible
tyre substantially as set forth and illustrated in the accompanying drawings.
Dated this 13th day of March 1894.
A. F. SPOONER,
124, Chancery Lane, W.C., Agent for the Applicant.
A. F. SPOONER,
124, Chancery Lane, W.C., Agent for the Applicant.