. A manual of marine engineering: comprising the design, construction, and working of marine machinery. Fig. 187. —Combined Syren and DoubleOrgan Whistle. Fig, Steven & StruthersAdmiralty Syren. whistle; second, by taking steam for the steering engine from the top ofthe whistle-pipe, thereby ensuring a constant flow of steam and no accumu-lation of water. Separator.—This, although not a boiler fitting, is intimately connectedwith them; it is almost unknown in the mercantile marine, although itmight be used sometimes with advantage there in order to free the steamfrom water mechanically
. A manual of marine engineering: comprising the design, construction, and working of marine machinery. Fig. 187. —Combined Syren and DoubleOrgan Whistle. Fig, Steven & StruthersAdmiralty Syren. whistle; second, by taking steam for the steering engine from the top ofthe whistle-pipe, thereby ensuring a constant flow of steam and no accumu-lation of water. Separator.—This, although not a boiler fitting, is intimately connectedwith them; it is almost unknown in the mercantile marine, although itmight be used sometimes with advantage there in order to free the steamfrom water mechanically mixed with it. All men-of-war were formerly fitted 484 MANUAL OF MARINE ENGINEERING. with separators, and, from the tendency to prime on the part of their boilerswhen working at full speed, and the danger to the engines when working ata high velocity of piston, from water getting into the cylinders, they werenecessary. Now, only ships with certain water-tube boilers have separators. The old separator consisted of a vertical cylindrical chamber, having adivision-plate extending from the top
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