The Iron and steel magazine . opper a, with its lowersides b converging and having a central discharge opening. Theopening is closed by the bell c, which is of the usual shape andconstruction and fits closely into the opening in the distributing bell d has its upper end cut away so as to forman opening into which the main bell will fit, closing the openingin the distributing bell. The edges of the opening in the upperend of the distributing bell rest upon a seat e, formed in theperiphery of the main bell, the opening in the distributing bellbeing at least equal to the opening of the
The Iron and steel magazine . opper a, with its lowersides b converging and having a central discharge opening. Theopening is closed by the bell c, which is of the usual shape andconstruction and fits closely into the opening in the distributing bell d has its upper end cut away so as to forman opening into which the main bell will fit, closing the openingin the distributing bell. The edges of the opening in the upperend of the distributing bell rest upon a seat e, formed in theperiphery of the main bell, the opening in the distributing bellbeing at least equal to the opening of the discharge hopper. * The Iron Age, February 8, iqo6. Metallurgical Notes and Comments 349 The main bell is connected by a rod / t(> the bell-operatingmechanism. The distributing bell d is similarly connected byroils g to a raising-and-lowering mechanism independent of it,which operates the main bell. It it is desired thai the charge be deposited in the middle of the furnace the mam bell is lowered, as shown by dotted lines. The IRON AQC Fig. 1. Fig. 2. Blast-Furnace Charging Apparatus in Fig. i, so that the entire contents of the hopper will pass downthrough the opening in the hopper and also through the distrib-uting bell. As the charge strikes against the lowered bell it isthrown outwardly, but the outward movement will be checkedby the curtain wall h on the lower end of the distributing bell,and thus the charge will be directed in straight lines to the middleof the furnace. On the other hand, if it is desired to direct thecontents of the hopper to the sides of the furnace, both bells are 350 The Iron and Steel Magazine lowered simultaneously, as in Fig. 2, and the contents of thehopper are directed by the sloping sides of the two bells to thesides of the furnace. It will be noted that the main bell c isthe sole means of closing the hopper. A Low-Resistance Thermo-Electric Pyrometer and Com-pensator. — At a recent meeting of the American Society ofMechanical Engineers, P
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Keywords: ., bookcentury1800, bookdecade1890, bookidironsteel, booksubjectiron
