Improvements in Wheels for Velocipedes and other Common-road Carriages.
Year: 1891

page_text: Date of Application, 26th Feb., 1891
Complete Specification Left, 25th Nov., 1891-Accepted, 2nd Jan., 1892
PROVISIONAL SPECIFICATION.
Improvements in Wheels for Velocipedes and other Common-road
Carriages.
I WILLIAM WHITWORTH NIGHTINGALE of 184 Lord Street Southport in the
County of Lancaster Engineer do hereby declare the nature of this invention to be
as follows:-
This invention relates to improvements in wheels for velocipedes and other
carriages for common roads and relates to an arrangement of parts forming the
tyre or bearing surface of the wheel so that whilst securing the benefits of elasticity
arising from the employment of pneumatic or like hollow elastic tyres the tyre
coming in contact with the road and having to bear the wear and tear is retained
solid or substantially solid and this solid tyre serves to protect the hollow tyre
from cutting or injury.
This principle of construction may be carried out in various ways using one outer
solid or substantially solid tyre and one inner pneumatic or like hollow tyre, the
solid tyre being partly and the hollow tyre wholly contained within the walls of the
rim of the wheel; or the solid tyre may be mounted on two or more hollow or
pneumatic tyres the pneumatic tyres being sufficiently clasped by and held in place
within the rim by the walls thereof.
The outer solid or substantially solid tyre may be of circular or other convenient
cross section and the inner pneumatic or hollow tyre or tyres may be of circular
cross section or they may be partly circular and partly conform to the shape of the
inner surface of the solid tyre bedded on them; or, the inner pneumatic or
hollow tyre instead of being in two separate parts may be made in form corre-
sponding thereto.
Dated the 26th day of Wohenoxy 1891
WM. BROOKES & SON,
55 & 56, Chancery Lane, London, Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Wheels for Velocipedes and other Common Road
Carriages.
I WILLIAM WHITWORTH NIGHTINGALE of 184 Lord Street Southport in the
County of Lancaster 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 relates to improvements in wheels for velocipedes and other
carriages for common roads and relates to an arrangement of parts forming the
tyre or bearing surface of the wheel so that whilst securing the benefits of elasticity
arising from the employment of pneumatic or like hollow elastic tyres the tyre
coming in contact with the road and having to bear the wear and tear is retained
solid or substantially solid and this solid tyre serves to protect the hollow tyre
from cutting or injury. This principle of construction may be carried out in
various ways using one outer solid or substantially solid tyre and one inner
pneumatic or like hollow tyre the solid tyre being partly and the hollow tyre being
wholly contained within the walls of the rim of the wheel, or the solid tyre may be
mounted on two or more hollow or pneumatic tyres the pneumatic tyres being
sufficiently clasped by and held in place within the rim by the walls thereof.
The outer solid or substantially solid tyre may be of circular or other convenient

page_text: Fig. 1 shews by transverse section an arrangement in which a solid tyre a rests
on a pneumatic or hollow tyre b, whilst c is a metal felly or trough shaped rim
enclosing the part, and partially enclosing the part a, c is an addition to the
part into which the spokes d may be secured in any ordinary or convenient
manner.
In Fig. 2 by a like view is indicated a modification of the arrangement Fig. 1, in
that the felly is formed in two halves joined at c to the spokes, the line of
direction of which is indicated by the dotted line d.
C
Fig. 3 indicates another modification in which the elastic tyre a is inwardly
shaped to the form of the hollow tyre b. c is the felly which encloses, part b.wholly
and part a partially. e is a trough shaped circular lining piece which may be of
thin steel or other suitable metal.
Fig. 4 indicates another modification substantially like the foregoing arrange-
ment, but having the elastic tyre a protected by a thin metal tyre to take the
contact with the road, which tyre may be kept in place by a dovetailed projection
locking into the substance of the elastic tyre, or the edges may clip the same; the
lining piece here is turned over and serves to form part of the felly reaching beyond
the wooden portion from the point 1 to the point 2 on each side.
Fig. 5 indicates a modification in which the solid tyre a is shaped inwardly to
the form of, and rests against, two hollow tyres, enclosed within' the felly c.
In Fig. 6 the elastic tyre a rests on three hollow tubes'b, within 'the félly c,
which is here made in two halves to be bolted together at the point cl, and to the
spokes.
The hollow or pneumatic' tubes may be varied'in form thickness" and "strength and
dilated with fluid to the desired pressure to suit variations of weight of vehicles and
loads. Also the forins and proportions of the other parts may be adapted to the
purpose for which the wheel is designed.

page_text: In place of solid elastic tyres a small portion of the substance say towards the
inner side may in some cases he made hollow or they may be made of a combination
of ordinary solid rubber and spongy rubber, and the internal tyres may be
combinations of pneumatic or hollow and spongy rubber.
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 combination or arrangement in a wheel for common roads of one or
more pneumatic or hollow tyres enclosed (wholly or partly) within a felly so as to
prevent the hollow tyre or tyres from being damaged with a solid tyre resting on
the track and in contact therewith so that the solid elastic tyre and not the hollow
or pneumatic tyre shall take the wear and tear, all substantially as set forth.
2: In a wheel for common road use the combination or arrangement of a solid
tyre with one or more hollow parts and the retaining rim so that the use of cement
may be avoided substantially as set forth.
3--The construction or arrangement of parts of a wheel for common road use as
and for the purposes substantially as hereinbefore set forth.
Dated the 25th day of November 1891.
WM. BROOKES & SON,
55 & 56, Chancery Lane, London, Agents for the Applicant.