Improvements in and relating to Pneumatic Tyres.
Year: 1893

page_text: Date of Application, 12th Jan., 1893
Complete Specification Left, 11th Nov., 1893-Accepted, 16th Dec., 1893
PROVISIONAL SPECIFICATION.
Improvements in and relating to Pneumatic Tyres.
I WALTER TURNER, of 133 Shirland Road, Maida Vale, in the County of
London, Engineer, do hereby declare the nature of this invention to be as
follows:-
:-
My invention relates to an improved construction of pneumatic tyre, and it has
for its object facilitating the removal of the cover thereof from the wheel rim, and
enabling a rim of the ordinary construction to be used.
In carrying out my invention I use an ordinary V or crescent rim, or a rim with
a flat bottomed groove and small side flanges such as the "Seddon" rim. The
cover-which is of the band type-has formed near its edges pockets adapted to
receive endless hoops or bands, the edges of the cover beyond the said pockets
being made of rubber, rubber and canvas, or of any other suitable material adapted
to form flanges or supports to rest on the bottom of the rim and support the
endless hoops or bands. The diameter of the endless hoops or bands is less than
that of the rim of the wheel at the edges thereof so that the said hoops or bands
cannot be passed over the edges of the rim until one part of each of the said hoops
or bands is placed in the bottom of the rim, and this can only be effected by
deflecting the flanges supporting the hoops or bands and so springing the said hoops
or bands down against the bottom of the rim at one part, which will allow the hoop
or band at a point diametrically opposite-to be passed over the edge of the rim.
The air tube is of the usual construction and it is preferably stretched slightly
when placed
on the rim so that when deflated it lies compactly in the bottom
thereof and so prevents the displacement of the flanges of the cover supporting the
endless hoops or bands.
Dated this 12th day of January 1893.
ROBT. ED. PHILLIPS, M.I.M.E.,
Consulting Engineer and Patent Agent,
70, Chancery Lane, London, W.C., Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in and relating to Pneumatic Tyres.
I, WALTER TURNER, of 133 Shirland Road, Maida Vale, in the County of
London, 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 :-
My invention relates to an improved construction of pneumatic tyre, and it has
for its object facilitating the removal of the cover thereof from the wheel rim and
enabling a rim of the ordinary construction to be used.
In carrying out my invention I use a rim either of a V or crescent shape in cross
section, or with a flat bottom groove and small side flanges such as are used with
the "Seddon" or "Cooke" tyres. The cover-which is of the band type-has
formed near its edges pockets adapted to receive endless hoops or bands, the edges
of the cover beyond the said pockets being made of rubber, rubber and canvas, or
of any other suitable material adapted to form flanges or supports to rest on the
bottom of the rim and support the endless bands or hoops. The diameter of the
endless bands or hoops is less than that of the rim of the wheel at the edges thereof
so that the said endless bands or hoops cannot be passed over the edges of the rim
until one part of each of the said hoops or bands is placed in the bottom of the rim,
and this can only be effected by deflecting the flanges supporting the endless bands
or hoops and so springing the said endless bands or hoops down against the bottom

page_text: of the rim at one part, which will allow the hoop or band at a point diametrically
opposite to be passed over the edge of the rim. The air tube is of the usual
construction and it is preferably stretched slightly when placed on the rim so that
when deflated it lies compactly in the bottom thereof and so prevents the displace-
ment of the flanges of the cover supporting the endless bands or hoops.
In order that my invention may be fully understood I will more. particularly
describe it making reference to the accompanying drawing in which Figure 1 is a
view in cross section of my improved tyre, and Figure 2 is a diagrammatic view
showing how the tyre is placed on and taken off the wheel rim.
Throughout the views similar parts are marked with like letters of reference.
The cover A is of the usual construction made of rubber reinforced with canvas
and it has pockets. "a," "a," in its edges in which are located endless bands or
hoops B, B, which prevent the cover from leaving the wheel rim on the inflation of
the air tube C which is of the ordinary construction.
66
. On to each edge of the cover A is attached a flange "a" adapted to rest on the
bottom of the groove of the wheel rim D and so support the edges of the cover and
retain the fixing bands or hoops in their proper position with respect to the edges
of the wheel rim. The flanges a¹," "a¹," are preferably made of rubber, or rubber
and canvas and they are either formed in one with the cover or they are attached
thereto. The wheel rim B is preferably of the type having a flat bottomed groove
as shown in the accompanying drawing, but any other type of rim may be used.
It will be seen that when the air tube is inflated it forces the flanges "a¹," "a¹,"
against the sides of the rim and retains them there, so that the wired edges of the
cover cannot work down to the bottom of the rim.
To remove the cover one of the edges is pressed inwards and downwards which
forces the flange "a¹ on the said edge towards the centre of the rim and allows the
wired edge to lie on the bottom of the groove of the wheel rim, which allows that
part of the wired edge of the cover diametrically opposite to be passed over the
edge of the rim as shown by Figure 2.
I wish it to be particularly understood that I do not limit myself to any
particular shape for the supporting flanges as this will vary with the type of wheel
rim used, neither do I limit myself to any particular method of applying such
flanges to the edges of the cover.
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 improvement in and relating to pneumatic tyres, as hereinbefore described
and illustrated by the accompanying drawing.
2. In a pneumatic tyre, the combination of a divided cover having pockets in
its edges, of two endless bands or hoops one located in each of the said pockets, and
of flanges attached to the edges of the cover to form supports for the said edges, as
set forth.
3. In a pneumatic tyre, the combination of a divided cover having pockets in its
edges, of two endless bands or hoops one located in each of the said pockets, of
flanges attached to the edges of the cover, and of an air tube for inflating the tyre,
all combined, arranged and operating, as and for the purpose set forth.
4. The combination of the cover A having pockets "a" "a" in its edges, of the
endless bands or hoops B, B, located in the said pockets, of the air tube C, of the
wheel rim D and of the flanges "a¹," "al," attached to the edges of the cover A, all
combined, arranged and operating, as and for the purpose set forth.
Dated this 11th dox of Novambor 1902
ROBT. ED. PHILLIPS, M.I.M.E.,
Consulting Engineer and Patent Agent,
70, Chancery Lane, London, W.C., Agent for the Applicant.