23,749. Hadfield, R. A., and Jack, A. M. Oct. 30. Casting.-Relates to tram way and railway crossings of the kind in which rails or their equivalents, forming parts of the crossing, are connected by means of molten metal cast round their converging ends, and consists in using mild or cast steel or other suitable steel such as Hadfield's manganese steel, instead of cast iron. The central renewable piece of hard material, such as described in Specification No. 14,511, A.D. 1902, [Abridgment Class Railways &c.], may be dispensed with by casting the steel in a mould adapted to form the necessary connecting grooves for the wheel flanges.