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Appletons' cyclopaedia of applied mechanics: a dictionary of mechanical engineering and the mechanical arts (1880)

D. Appleton and Company, Benjamin, Park, 1849-1922 · New York, D. Appleton · leaf 470

An illustration from Appletons' cyclopaedia of applied mechanics: a dictionary of mechanical engineering and the mechanical arts, 1880, leaf 470 — 3129. … is a similar core-box for a casting with circular mortises; this requires either pins or projections ateach end, as it cannot be opened obliquely. Core-boxes are sometimes made of plaster of Paris;wood is much better, and metal the best of all. Many works require core-boxes to be made expressly for…

Mechanical engineering -- Dictionaries

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