Improvements in or relating to Pneumatic Tyres and Rims and Valves for Cycles and other Road Vehicles.
Year: 1896

page_text: Date of Application, 4th June, 1896
Complete Specification Left, 4th Mar., 1897-Accepted, 8th May, 1897
Improvements in or relating to Pneumatic Tyres and Rims and
Valves for Cycles and other Road Vehicles.
JAMES GEORGE STIDDER, of 66 Waddon Old Road, Croydon, in the County
of Surrey, Sanitary Engineer, do hereby declare the nature of my said invention
to be as follows:-
The object of my invention is to effect improvements in pneumatic tyres and
rims and valves therefor, whereby the tyres are rendered free from puncturing and
more readily and easily detached from the rim in case of necessity, and the valves
are more air tight and generally efficient in practice, than the tyres and valves in
general use.
According to my invention I provide the outer cover with an inner layer or
layers of wool or wadding or the like and horsehair (woven or otherwise) either
moulded with the tyre or formed as a separate band and in both cases protected by
rubber, canvas or other suitable material. The outer cover is provided with
thickened or wedge shaped edges and is preferably made with an insertion of
canvas or other fabric, woven or otherwise.
The thickened edges are arranged to partly enclose tubular projections or
corrugations formed upon, or attached to, and running longitudinally with the rim.
The tubular projections are formed one on each side of the bottom of the rim on
the concave side and at about equi-distant between the edge and bottom of
the rim.
Instead of an inner or inflatable tube I preferably use a band of rubber also
with thickened edges the sides of the band being caused to overlay that portion of
the outer cover which partly encloses the tubular projections, in such a manner
that the inflation of the tyre causes the band to form an air tight joint with the
outer cover and secure the latter on the rim. The band may be held in place
upon the rim by "woodite" or other segments in combination with a detachable
and adjustable wire or by forming the middle of the band thicker than the sides so
that the tension of the band around the rim retains the same in place, or by other
suitable means.
The valve is attached to the band by suitable means and is clamped by means of
nuts to the rim the screwed tube of the valve being formed with a side perforation
to allow of deflation when the nut is partly unscrewed. The valve is formed with
double valves of the ball type with bye passes in addition to the through way, so
that should one of the balls fail to check the return flow of air, the second is forced
to its seat whereby a perfectly air tight joint is obtained. The balls are preferably
made of vulcanite, but other materials may be employed for the purpose.
Dated 4th June 1896.
GEO.
DOWNING,
8 Quality Court, London, W.C., Agent.

page_text: Improvements in or relating to Pneumatic Tyres and Rims and
Valves for Cycles and other Road Vehicles.
I, JAMES GEORGE STIDDER of 66 Waddon Old Road, Croydon in the County
of Surrey, Sanitary Engineer, do hereby declare the nature of my said invention
and in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement :-
The object of my invention is to effect improvements in pneumatic tyres and
rims, and valves therefor, whereby the tyres are rendered free from puncturing
and more readily and easily detached from the rim in case of necessity, and the
valves are rendered more air-tight and generally efficient in practice than the tyres
and valves in general use.
According to my invention I provide the outer cover with an inner layer or
inner layers of wool or wadding, or the like, and horsehair (woven or otherwise)
either moulded with the tyre or formed as a separate band, and, in both cases
protected by rubber, canvas, or other suitable material. The outer cover is
provided with wedge shaped edges, and is preferably made with an insertion of
canvas or other fabric, woven or otherwise. The edges are arranged so as to
partly enclose annular tubular projections or corrugations formed upon or attached
to, and running longitudinally with the rim.
The tubular projections are formed one on each side of the bottom of the rim ou
the concave side, and about halfway between the edge and bottom of the rim,
which may be made up of one or more pieces.
Instead of an inner or inflatable tube, I preferably use a Ushaped band of
rubber with wings also with edges, the sides or wings of the band being caused to
overlay those portions of the outer cover which partly enclose the tubular
projections, in such a manner that the inflation of the tyre causes the wings to
form an air-tight joint with the outer cover and secure the latter on the rim. The
wings may be held in place upon the rim by woodite or other segments in com-
bination with a detachable and adjustable wire, or band, or by forming the middle
of the band thicker than the sides, so that the tension of the band around the rim
retains the same in place, or by other suitable means.
The valve is attached to the band by suitable means, and is clamped by nuts to
the rim, the screwed tube of the valve being formed with a side perforation to
allow of deflation when the nut is partially unscrewed. The valve is formed with
double ports and two balls or their equivalents and by-passes, in addition to the
through-way, so that in case one of the balls or the like should fail to check the
return flow of air, the other valve would be forced to its seat, thereby ensuring a
perfectly air-tight joint. The valves are preferably made of vulcanite, but other
materials may be employed for the purpose.
And in order that my said invention may be particularly described aud
ascertained reference is hereby made to the accompanying drawings, in which
similar figures of reference indicate corresponding parts.
Fig. 1 is a sectional diagram illustrating one method of carrying out my
invention, the ordinary pneumatic cover being shown fitted to my improved rim
and arrangements for securing the same.
Fig. 2 is a sectional diagram showing the cover fitted with my improved puncture
resisting appliances.
Fig. 3 illustrates another method of fitting the cover.
Figs. 4, 5, 6 and 7 are detail views of the combination shown in Fig. 3.
Fig. 8 is a sectional view illustrating my improvements in valves for pneumatic
tyres.

page_text: I form the rim 10 as shown in the drawings or made in more pieces and add.
thereto annular ribs or tubular projections 11, 11, by brazing or riveting or I form.
such ribs or their equivalents as part of the rim itself while manufacturing the rim ;.
the ribs in some cases are formed of wood or other analogous material.
The cover 12 is moulded at 13, so as to surround or partly surround the ribs or
tubular projections 11. In order to retain the curved edges of the cover in close:
contact with the projections 11, so as to form an air-tight joint, a rubber shape.
band with wings 14 is fitted inside the cover, as shown.
This band is held in its place by another band 15 formed of woodite wire or
other suitable material. The two ends of the band 15 are fitted with lugs 16,..
whereby the ends may be drawn together by a small screw bolt and nut or nuts.
In some cases I dispense with the winged band 15, and use a modified form of
the band 14 shown in Figs. 1 and 2, as shown in Figs. 3 and 6. This band is
thickened at 17 while the winged portions 14 are similar to those in Figs. 1 and 2,
the part 17 acting as a strut to retain the ends of the cover 12 in a locked position
upon the projection 11.
Fig. 2, 3, and 5, illustrate my improvements in reducing the liability to
puncturing. The cover 12 is formed of the usual materials, rubber and canvas.
Inside this cover I apply a layer of wool or wadding, or a combination of such
materials with horsehair (woven or otherwise) at 18. either moulded with the
cover 12, or formed as a separate band, and protected by a rubber band 19, or by
canvas or other suitable material.
The outer cover 12 is provided with thickened or wedge shaped edge 20,.
preferably made with an insertion of canvas or other fabric, woven or otherwise.
Referring to Fig. 8, the valve is shown attached to the rim 11 and winged
band 17 by a screw 21 and nut 22. 23 is the usual nozzle for attaching the pump.
24, 25, are two balls or other suitable valves both fitting on seats as usual. Each
of the two valves has side passages or by-passages 26, 27, for the passage of
compressed air. In case one of the valves should happen to become leaky,
the other would be available, thus affording double security against loss of
compressed air after inflation. 28 is a passage which is covered and closed by the
screwed collar 29 when the tyre is inflated.
By unscrewing the collar 29 a few turns, without removing it entirely, the
passage 28 is uncovered to allow of deflation, when required.
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 improvements in or relating to pneumatic tyres and rims, and valves for
cycles and other road vehicles, substantially as and for the purposes herein before
described and illustrated by the drawings.
2. In a pneumatic tyre for the purposes aforesaid, the application and use of an
outer cover, having an inner layer or inner layers of wood or wadding, or the
like, and horsehair (woven together or otherwise) either moulded with the tyre or
formed as a separate band, protected by rubber, canvas, or other suitable material,
substantially as herein before described and illustrated by the drawings.
3. In a pneumatic tyre for the purposes aforesaid, the application and use of an
outer cover provided with thickened or wedge shaped edges arranged so as to
partly enclose annular tubular projections or corrugations formed upon or attached
to and running in a direction longitudinally with the rim, substantially as herein
before described and illustrated by the drawings.
4. In combination with a pneumatic tyre for the purposes aforesaid, the applica-
tion and use of tubular projections 11 formed one on each side of the bottom of the
rim on the concave side substantially as herein before described and illustrated by
the drawings.
5. In combination with a pneumatic tyre for the purposes aforesaid, the applica-
tion and use of a U shape winged band of rubber 14 with thickened edges, the

page_text: wings of the band being caused to overlay those portions of the outer cover which
partly enclose the tubular projections, the winged band 14 being held in position
by woodite or other segments 15 or by wire so as to form air-tight joints,
substantially as herein before described and illustrated by the drawings.
6. In combination with a pneumatic tyre for the purposes aforesaid, the applica-
tion and use of a band 17 combining the functions of the band 14 and segment 15
and in substitution thereof, substantially as herein before described and illustrated
by the drawings.
7. In a pneumatic tyre for the purposes aforesaid, the application and use of a
double check valve, substantially as herein before described and illustrated by
Fig. 8 of the drawings.
8. In a pueumatic tyre for the purposes aforesaid, the application and use of a
perforation or port 28 arranged to be closed by the collar 29, and opened for
deflation by partially unscrewing the same, substantially as herein before described
and illustrated by Fig. 8 of the drawings.
Dated 4th Mount 1007
GEO.
DOWNING,
8 Quality Court, London, W.C., Agent.