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 99
n thecase of single-actim: hammers thai have fixed anvils. The same rule applies in the back stroke ofthe hammers, as the links which move them are connected together at the centre, where the power isapplied at right angles to the line of the hammer movement. The links connecting the two…
Mechanical engineering -- Dictionaries
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