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 755
ROPELLER. d-ll etc., equivalent parts of the pitch, corresponding to the same parts of the circle in the endview. Evidently the verticals drawn through the points 9, 8, d\ 11, etc., represent the positionsof the generatrix in its progress, if revolved into the plane parallel to the paper. Now/ a 6… … In order to find the true positions of these points, we proceed as follows : Let us take the point a!and try to find its true position in the end view and side view. <- being the position revolved into aplane parallel to 9 i i, its position if revolved in the end view will he somewhere in CD.…
Mechanical engineering -- Dictionaries
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