Collins, A. Frederick (Archie Frederick), 1869- · Boston, Small, Maynard and company · leaf 139
tted to theengine. A bought governor is shown at B. A Steam Force Pump.—For stationary boilersa steam force pump is generally used to pumpwater into it as needed. A simple force pump can be made of a coupleof check valves, as shown at A in Fig. 50, that 124 The Boys Book of Engine-Building is… … PISTON PLUNGER, JLJf P/PE /TOINTflKEOFBOILER8/PLL
Steam-engines
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