Abstract: A tire molding matrix comprising a plurality of projections on the tread molding surface of the matrix, the projections being for molding a first, radially outer and a second radially inner, pattern in the tread of the tire incorporating at least one main drainage groove, the configuration of the projections changing distinctively at a predetermined level which is substantially parallel to the surface of the matrix for molding the tread ground-contacting surface of the tire and which is situated at a depth which is a predetermined amount less than the depth of the projection for molding the main drainage groove, the second pattern comprising a wholly radial extension of only a part of the first pattern.

Abstract: A pneumatic tire and wheel assembly containing an enclosing means for a lubricating material. The enclosing means will release the lubricating material into the tire when the tire becomes deflated.

Abstract: A pneumatic tire and wheel assembly containing an enclosing means for a lubricating material. The enclosing means will release the lubricating material into the tire when the tire becomes deflated.

Abstract: A pneumatic tire and wheel assembly containing an enclosing means for a lubricating material. The enclosing means will release the lubricating material into the tire when the tire becomes deflated.

Abstract: A pneumatic tire having a coating of lubricating material on the interior surface thereof to reduce friction between the contacting portions of the interior surfaces when the tire is used in a deflated condition. The coating may be on only the contacting portions of the internal surfaces which so come into contact, of which the following is a specification.

Abstract: A tire and a tire and wheel assembly in which the wheel rim has axially-outwardly-extending portions adjacent the bead seats and the tire has in the lower sidewall region a rubber buttress having a substantially axially-outwardly-extending radially inner face. This buttress is capable of tangential flexing relative to the wheel rim so that on deflation of the tire the radially inner face of the buttress contacts the axially-outwardly-extending rim portions to support the tire sidewall and accommodate relative movement between the wheel rim and the tire sidewall.

Abstract: A flexible article, such as a hose pipe, which comprises a body including polymeric material and having a surface layer of non-woven filamentary material applied to the body, the filamentary material being impregnated with a polymeric material.

Abstract: Flame-resistant polyurethane foams are obtained by a process in which a tolylene diisocyanate (T.D.I.) is reacted with a polymeric polyol in the presence of a substance which is normally effective for the polymerisation of T.D.I. and an anti-ageing additive such as a halogenated aliphatic phosphate, of which the following is a specification.

Abstract: A wheel having a pair of spaced-apart seats for tire beads and annular, axially extending rim portions extending from adjacent the bead seats and forming faces against which a sidewall of a tire can be deflected and supported when the tire is deflated.

Abstract: A pneumatic tire and moulding matrix therefore, the tire tread incorporating a traction pattern which changes distinctively when only a predetermined amount of tread rubber remains, thus warning the tire user that his tire is approaching the legal or safe limit and will soon have to be replaced or retreaded.