The Mechanical Handling and Storing of Material

i74 THE MECHANICAL HANDLING OF MATERIAL Fig. 229 is a general view of the machine looking towards the delivery end, which shows clearly a portion of the moulds as they are partly submerged. Fig. 230 is a view of the delivery end. Th$ two strands of moulds are driven from one shaft by spur wheels, and are fitted with friction clutches so that either one strand or both may be used. Fig. 231 represents two furnaces for drying and coating the moulds. These are mounted on wheels and can be withdrawn when the machine is out of work. The moulds as they leave the water tank travel up an incline sufficiently high to give easy discharge for loading into railway wagons, each being fitted with a pair of runner wheels, 8 in. in diameter, similar to the machine previously described. Fig. 229. “ Heyl and Patterson” Machine looking towards Delivery End. The chain consists of links of a 24-in. pitch which are joined together by .pins 2 in. in diameter. The conveyor is not so long as in the “Uehling” machine, and the power consumed is 14 H.P. The “ Ramsay” Casting Machine.—This machine was built for the Tennessee Iron and Railroad Co., Birmingham, Alaska, U.S.A., and varies considerably in form from those previously described, though the principle itself is very similar. The “ Ramsay ” machine consists of a girder of an annular shape, the sides being of sheet steel, and riveted together with angle irons. The intervening space is intercepted periodically by steel staiths. This circular girder rests upon eighteen pairs of wheels, the axles being supported by bearings bolted to the girder. A section through the girder itself with its supports is shown in Figs. 232 and 233. The moulds which receive the liquid metal are fitted with small trunnions which fit