Improvements in Metallic Tyres and Rims for the Wheels of Vehicles.
Year: 1894

page_text: Date of Application, 5th Nov., 1894--Accepted. 8th Dec., 1894
COMPLETE SPECIFICATION.
Improvements in Metallic Tyres and Rims for the Wheels of
Vehicles.
I JOHN EDWARD BUCKINGHAM of 113 Upland Road East Dulwich in the
County of Surrey Jobmaster 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 metallic tyres and rims for the wheels of vehicles and
has for its object to enable the tyre to be easily detached from the wheel when
worn and a new one substituted therefor without the necessity of welding and
shrinking the same to the wheel.
Now according to this invention I form the rim of the wheel if, of metal
preferably of channel section with inwardly turned edges or if the felloes of the
wheel are of wood I shrink a similar rim on to the periphery of the wheel.
I provide also a number of segments of steel or other suitable metal having side
flanges which extend under the inwardly turned edges of the rim leaving the body
of the metal projecting beyond the rim of the wheel. These segments form the
tyre. To prevent the segments from rattling I insert between the inside of the
tyre and the rim strips of millboard, vulcanised fibre wood or other suitable
material and if necessary slips of similar material may be inserted between each
segment.
And in order that my said invention may be fully understood I will proceed
to explain the same with reference to the accompanying sheet of drawings in
which
Fig. 1 represents section of a wheel rim and tyre constructed according to this
invention.
Fig. 2 is section of the rim of the wheel.
Fig. 3 is section of a segment of the tyre.
Fig. 4 is side view of same.
Fig. 5 is plan of same.
Fig. 6 is end view of a segment of the tyre hereinafter referred to.
Fig. 7 is plan of the rim.
The same letters denote the same parts in all the figs.
a is a metal rim of channel section having the edges 6 6 turned over at right
angles to the sides c c.
d is a tyre of steel or any other suitable metal the said tyre being composed of a
number of segments as shown in Figs. 3. 4 and 5. The segments of the tyre are
provided with flanges e e on each side thereof which project under the turned over
portions of the rim a and retain the tyre in place.
To prevent the tyre from rattling strips of wood vulcanised fibre or other
suitable material are inserted between the rim a and the segments d as shewn in
Fig. 1.
In order to allow of the insertion of the segments d and the strips in the rim
the edges of the rim are cut away at 9 g see Fig. 7 sufficiently to allow the segments &
to drop into the rim.
The said segments are after being placed in the rim moved round into their
proper position the last segment to be inserted forming a head to a bolt h see Fig. 6
which passes through the felloe of the wheel and is secured thereto by means of a
nut and washer.
The flanges of the said section being so shaped as to fill up the gap in the edges
of the rim as shewn at e¹ e' Fig. 6.

page_text: Strips of vulcanised fibre or other suitable material may be inserted between each
segment to prevent rattling.
When worn the tyre, only has to be renewed which is easily done without the
necessity of shrinking a new tyre on to the wheel.
I prefer to form one end of each of the two segments next the bolt as shewn by
the dotted lines in Fig. 4, and to make the bolt head wedge shaped so that when
drawn into position by the nut the inclined ends of the bolt-head acting on the
bevilled ends of the two segments next the opening in the rim will force the whole
of the segments into close contact with each other and make a firm tyre.
Although I have described the rim of the wheel with turned over edges I wish
it to be understood that I do not bind myself to the particular section of metal
shewn in the drawings as any other suitable section of rim may be used for example
a dove tailed rim may be used instead of that shewn but
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 rims and tyres for the wheels of vehicles the combination of a segmental
metal tyre with a metal rim and strips of vulcanised fibre or other suitable material
substantially as hereinbefore specified and for the purpose stated.
2. A rim and tyre for the wheels of vehicles consisting of the combination of a
metal rim of channel section having inwardly turned edges with a series of metal
segments having flanges thereon strips of vulcanised fibre or other suitable material
being interposed between the segments and the rim substantially as hereinbefore
specified and for the purpose stated.
3. The construction of metal tyres and rims for the wheels of vehicles
substantially as hereinbefore described and shewn by drawings hereunto annexed.
Dated this Fifth day of November 1894.
T. E. HALFord,
11, Furnival Street, Holborn, E.C., Agent for Applicant.