Year: 1899

page_text: Improv
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I, HERBERT Fox STANDING, of Virginia Road, Leeds, in the County of York,
Schoolmaster, do hereby declare the nature of this invention to be as follows:-
The object of this invention is to construct a pneumatic tyre in such a manner
that on a puncture being formed, it closes and heals up immediately, without
exhausting the air contained in the tyre; whilst at the same time the tyre is more
resilient than pneumatic tyres hitherto made.
This result is attained by employing a number of separate air chambers which
are inflated slightly above the pressure of the atmosphere, and the said air
chambers are provided with retaining bands which may suitably be attached to
their sides or ends. The air chambers are arranged on the outer surface of a
puncture proof shield, the inner surface of which rests on an inflatable tube; and
the air chambers, shield and tube are inserted in the outer cover of a wheel, in
such a manner that the air chambers are in contact with the interior of the said
outer cover and the tube rests on the rim, whilst the shield separates the annular
row of air chambers from the tube.
The air chambers may be packed together on the shield so that a preliminary
end or circumferential pressure is obtained before the said air chambers are
inserted in the tyre.
The shield may be made in several sections if desired, and the retaining bands,
whilst permitting the air chambers to move circumferentially on the shield, retain
them in the required circle.
By inflating the tube, the shield presses on the air chambers and subjects them
all to an equal pressure, so that should one or several chambers become punctured
the adjoining chambers close up circumferentially, causing the collapsed chamber
to encase the thorn or other puncturing object, whilst the shield effectually
prevents the puncture extending to the inner tube.
Tyres constructed according to my invention are quicker in resilience than
where the air is contained in a single tube, as the elasticity is localized to the
point where it is most required.
י
53 1
1000

page_text: the same is to be performed, to be particularly described and ascertained in and
by the following statement:-
The object of this invention is to construct a pneumatic tyre in such a manner
that on a puncture being made, it closes and heals up immediately, without
exhausting the air contained in the tyre; whilst at the same time producing a
tyre of great resiliency.
In order that my invention may be readily understood, I will describe same
with reference to the accompanying drawing, in which Figure 1 is a cross section,
and Figure 2 is a longitudinal sectional elevation, of a tyre constructed accord-
ing to my invention. Figures 3 and 4 are detail views showing air chambers
having attachment devices fitted, thereto, hereinafter more fully described.
Referring particularly to Figures 1 and 2 of the drawing, a number of separate
air chambers A are employed, which are inflated slightly above the pressure of
the atmosphere, and sealed; the chambers A being provided with retaining
bands B, attached to their sides. The air chambers A are arranged on the outer
surface of a puncture proof shield C, the inner surface of which rests upon an
inflated tube D. The air chambers A, shield C, and tube D are adapted to be
received upon a felloe or rim E, and are retained in position by an outer cover F,
which may be fitted to the rim in any approved manner. The relative position
of the air chambers A is such that they are in contact with the interior of the
outer cover F, and the tube D rests on the rim E, whilst the shield C separates
the annular row of air chambers A. from the tube D.
The air chambers A may be packed together on the shield C so that a pre-
liminary end or circumferential pressure is obtained before the air chambers A
are inserted in the tyre.
Referring particularly to Figures 3 and 4 of the drawing, air chambers A are
illustrated showing two forms of attachment device for retaining the chamber
in position upon the puncture proof shield C. These attachment devices consist
of short sections of flattened tubing, of celluloid, ebonite or other suitable material
secured in position to the air chamber by means of the retaining band B, in the
manners clearly shown in the Figures 3 and 4. The flattened tubes are threaded
upon the puncture proof shield C, and enable the chambers A to be freely slidden
along same, and thereby adjusted before placing in position within the outer
cover, or as hereinafter described, in the event of puncture to enable the
chambers A to automatically adjust themselves into their new positions, con-
sequently upon the collapse of the punctured air chamber.
The shielt C, which is preferably made of vulcanised fibre, may be formed in
several sections, having overlapping ends arranged as indicated at Figure 2 of the
drawing. The retaining devices, in this case, whilst permitting the air
chambers A to move circumferentially on the shield C, retain the overlapping
ends in the required circle.
By inflating the tube D, the shield C presses on the air chambers A and
subjects them all to an equal pressure, so that should one or several of the
chambers A become punctured the adjoining chambers close up circumferentially,
causing the collapsed chamber to encase the thorn or other puncturing object,
whilst the shield C effectually prevents the puncture extending to the inner
tube D.
Having now particularly described and, ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is:-
1. A tyre consisting of an outer cover containing an inner air tube, located
near the felloe, surrounding which is a protective shield having a number of sealed
air chambers carried thereon and free to move circumferentially along the shield,
substantially as and for the purposes herein described.
2. A tyre consisting of an outer cover containing an inner air tabe, located
near the felloe, surrounding which is a protective shield formed in sections, a

page_text: number of sealed air chambers, each provided with a section of flattened tubing
attached to the chambers, the tubing forming means of attaching the air chambers
upon the shield and permitting of their circumferential movement thereon, sub-
stantially as and for the purposes set forth.
3. The particular arrangement, construction and combination of parts forming
my invention in pneumatic tyres, substantially as and for the purposes set forth
with reference to the accompanying drawing.
BREWER & SON,
London & Leeds, Agents for the Applicant.
BREWER & SON,
London & Leeds, Agents for the Applicant.