Hawkins, N. (Nehemiah), 1833- · New York : Theo. Audel · leaf 309
/^<yy?»^»»y^x?;»t»^^^ 310 rnui/s iXui HydrauUcs. To set the valves of this pump. Simply keep the valves inorder. The motion of the piston as it nears the end of thestroke opens and closes the valves. THE KNOWLES. In the Knowles pump a valve piston, G, Fig. 277, in thesteam chest moves the main… … B Fig. 276. alternately backward and forward by the pressure of steam,carrying with it the main valve, which admits steam to themain steam piston that operates the pump. The main valve isa plain slide whose section is of g form, working on a flat seat.
Hydraulic machinery · Pumping machinery
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