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 749
lever E is operated backward the edge of 6, meeting one of the lugs d, causes the head F to revolve.The amount of its revolution is governed as follows : In F are provided the six holes denoted by g.h is a pin, which alternately (asthe slide D is moved) projectsinto or recedes from the hole…
Mechanical engineering -- Dictionaries
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