Ejector

—An apparatus, consisting of a series of conical nozzles, whereby a jet of steam or compre ed air propels a stream of liquid or fluid. The principle is the same as that of the injector, but the ejector always delivers into a space with but little pre ure upon it. hence the differences in the design. Hjectors are fitted as emergency bilge pumps aboard ship, most warships having one in each compartment; and they are employed on railways to actuate the vacuum brake.