The Hackworth Valve Gear.

A Concise Explanation of its Merits and Manner of Operation. T HIS radial _valve gear is fitted to the Yorkshire steam wagon, and the simplicity of. the gear will readily he......

A New Range Of Tipping Gears.

A FULL range of single-screw, doublescrew, and telescopic-screw tipping gears of front 1-ton to a-ton, capacity have been developed by the Spenborough Engineering Co., 'of......