. Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics . ws three views of the construc-tion of the valve. It consists of two parts, which are con-nected by telescopic sleeves, allowing each half to adjust it-self to its seat. The sectional view shows the manner of steamdistribution to the cylinder, and the operation of the double-faced valve is held in constant and steam-tightcontact with an upper and lower horizontal valve-face, whoseareas, in proportion to t
. Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics . ws three views of the construc-tion of the valve. It consists of two parts, which are con-nected by telescopic sleeves, allowing each half to adjust it-self to its seat. The sectional view shows the manner of steamdistribution to the cylinder, and the operation of the double-faced valve is held in constant and steam-tightcontact with an upper and lower horizontal valve-face, whoseareas, in proportion to the surface of the valve, are identical. The live steam enters the upper side of the valve, and, being inclosed by the telescopic shells,presses the faces apart with relation to each other, and against the port or passage-way sur-face, as shown. By this arrangement there is only a sufRcient percentage of the whole areaof each valve subjected to unbalanced pressure to insure steam-tightness. The Ball <£? Wood Cross-Compound Engine.—Fig. 30 shows a perspective view of a cross-compound engine built by the Ball & Wood Co., of Elizabeth, N. J., for the Newark Electric. Valve.
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Keywords: ., bookcentury1800, bookdecade189, booksubjectmechanicalengineering
