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 362
ssure of the aircontained in the upper chamber of the throttle, acting through this disk on the valve, opens it andadmits the compressed air of the reservoir into the lower chamber. It is evident that the pressuresin the upper and lower chambers must be in equilibrium; in other words, as the… … greater pressure in the lower chamber would compress the air in the upper chamber, acting on therubber diaphragm from the lower side, through the disk which moves the valve upward partlyclosing the opening At the Paris Exposition of 1878 two of these locomotives were exhibited. Onewas a car-motor,…
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