Worthen, William Ezra, 1819-1897, [from old catalog] ed · New York, Appleton · leaf 195
the parts will shrink unequally, and there will be a strain inducedwhich will materially weaken the casting, and it may even break in the mold. Thedraughtsman, in his design, should make the parts of as uniform thickness as possible. Castings cool from the outside inward, in annular crystals…
Mechanical drawing
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