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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 802

An illustration from Appletons' cyclopaedia of applied mechanics: a dictionary of mechanical engineering and the mechanical arts, 1880, leaf 802 — ture is liberated from the magnet, the stop P being no longer a supportto the finger D, the latter then is free to fall. The armature p is liber-ated from its magnet only by the action of an electric current which,passing through the bobbins, weakens the magnetic force ; and this cur-rent can be…

Mechanical engineering -- Dictionaries

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