When the converter is filled, it is borne by the crane into a convenient position for blowing, and if the basic method is followed for removing the slag, the converted metal is cast into ingot moulds, which are manipulated by a small ingot crane of the ordinary pattern.

Father Bear let the boy watch the gorgeous spectacle until the blowing was over and the flowing and sparkling red steel had been poured into ingot moulds.

In 1859, 3,000 tons were landed in Detroit, producing from 60 to 70 per cent of ingot copper, being among the purest ores in the world.

The causes of the difference between the two kinds of steel the author attributes to differences in the structure of the ingot due to the agent used in "chemical consolidation," which may be either manganese or silicon, which structures are illustrated by photographs of ingot fractures.

In the case of small existing blast-furnaces, which usually have their tap holes near to the ground, it may be necessary to have a shallow ingot pit (20 to 24 inches deep); but with cupolas this will not generally be necessary, and the whole of the operations may be carried on at the ground level.