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 32
axes, and intersects at /, their common perpendicular, dividing it into segments proportional toA G, G H, and therefore to EG, GH: by revolving around A B it will generate one surface,and by revolving around C D it will generate another, tangent to the first, which will be the pitch-surfaces of the…
Mechanical engineering -- Dictionaries
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