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 539
uired pressure isproduced by the spring and itsmate at the right. At the rightand left of the front are seenthe ends A of the mutes belong-ing to two full registers of reeds.On the top, back of the keys, is the stop-board B, with its knobs in front. It is made wide so as to afford a firm bearing…
Mechanical engineering -- Dictionaries
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