By these arrangements in the play of the three cranes, masses weighing five tons may be transported and laid down with the greatest precision upon any point whatever in the interior of the three circles traced upon [fig. 467.] with the points c, d, e, as centres.
c, d, e, are the steps, upon which the upright shafts of the three cranes rest and turn. Each shaft is 16 feet high.
f, f, is the drying stove, having its floor upon a level with that of the foundry.
f′, f′, is a supplementary stove for small articles.
g, g, g, are the coaking ovens.
h, is the blowing machine or fan.
i, is the steam-engine, for driving the fan, the loam-edge stones,
k, and the charcoal mill.