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 625
THE LEAVIIT PUMPING ENGINE. PUMPING ENGINES. 595 cross-heads give motion to two vibrating levers, one of which actuates the air-pump and the otherthe boiler feed-pump. Two main connecting-rods, attached to these swinging levers, with a leveragetwice that at the point of connection with the pump…
Mechanical engineering -- Dictionaries
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