SLOAN'S PATENT HYDROSTAT FOR STEAM BOILERS. Figure 1. Figure 3. Figure 2. … steam connections, d' and e'. The dotted line likewise the bell and whistle pins. The above are engravings of the 'Hydrostat' until the supply-valve, »•, is wide open, when, across the float, f, shows the water-level, if the water still continues to fall, the cam, c, for the prevention of steam…
Patents · Iron · Air · Steamships · Engine · Hot air · Planing · Three miles · Steam boiler · Scientific American · Patent office · York city · Caloric engine · Screw blank · Steam engine · Patent planing
Internet Archive · Public domain (published before 1931). Free to use for anything.