"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 168
hes was decided on ; these boxes were supported by frames spanning the scale and resting on the ground, as seen at Fig. 5? ; each box was fitted with a loose bottom, which rested on the scale platform. The plunger used for ramming fitted its box loosely enough to avoid serious friction, and was… … inch on the under face of the box. (This is about the density of the average mould surface.) We began with the 4-inch square box as follows: 2} inches of loose sand was put in and compressed to 1}-} inches to give a density equal to 10 pounds on the under side, and it required a pressure of 12£…
Iron founding
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.