Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics (1892)
Benjamin, Park, 1849-1922 · New York, D. Appleton · leaf 27
Fio. 2.—Rand compressor. … Fig. 3.—Kand Compressor. the air-pressuro, and closed at the proper time—the end of the stroke—by a positive movingmechanism. This mechanism being released when the valve is open, the valve is freed fromany influence tending to close it. and it hence opens to its full width and stays open.…
Mechanical engineering
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