Page:The Steam Turbine.djvu/69

 Gearing is also applicable to warships of the largest size (Fig. 51). It is also finding a place in cross-channel boats, and two such vessels for the South Western Railway Co. are being fitted with all geared turbines like the "Vespasian." The greatest material gain, however, will be found in extending the use of turbines to vessels of slow speed.

ARRANGEMENT OF MACHINERY (WITH GEARED CRUISING TURBINE) FOR 60,000 SHAFT HP CRUISER Fig. 51.

Half a century ago nearly all screw vessels had mechanical gearing, one element being composed of wooden teeth, because the screw revolved at too high a speed for the