Operating Concessions Recommended In Argentina.

By a Bill recently presented to the Argentine Congress, it is proposed that all interstate lorry and bus traffic shall be placed in the " common-carrier " class. Under its......

A New Design Of Clupet Piston Ring.

The latest product of the Clews Petersen Piston Ring and Engineering Co., Ltd., West Heath Works, Mill Lane, West Hampstead, London, N.W.6, is a slotted scraper-ring, which......