17,386. Parr, S., [executrix of Parr, J.]. Aug. 30. Tyres, pneumatic &c.-Relates to means for protecting pneumatic and other elastic tyres. In the form shown in Figs. 1 and 2, a network B of metallic rings is embedded in rubber or similar material C, which is placed between the inner and outer surfaces A of a cover adapted to surround the tyre. In modifications, the rings may be replaced by springs; the parts which are not metallic may be dispensed with ; the protector may be constructed in sections ; and it may be employed outside an ordinary cover.