"The iron founder" supplement. A complete illustrated exposition of the art of casting in iron. Comprising the erection and management of cupolas, reverberatory furnaces, blowers, dams, ladles, etc.; mixing cast iron; founding of chilled car-wheels; malleable iron castings; foundry equipments and appliances; gear moulding machines; moulding machines; burning, chilling, softening; annealing; pouring and feeding; foundry materials; advanced moulding; measurement of castings; wrought iron, steel, etc. Also, the founding of statues; the art of taking casts, pattern modelling; useful formulas and tables (1893)
Bolland, Simpson · New York, J. Wiley & Sons · leaf 83
PPLEMENT. 66 clean, as any accumulation of dirt or scum upon its surface acts like a shield, and interferes with the direct action of the flame upon its surface ; this, of course, is as good as so much heat lost. Another very important operation which is readily accom¬ plished by means of the… … whole: this is done by thrusting down into the molten iron one or more green saplings. This, of course, creates a vio¬ lent ebullition throughout the mass, and usually effects the desired result; but this, as well as the other operations, must be done with the utmost dispatch, otherwise cold air…
Iron founding
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
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