CHAP. vni. 



KENDAL TURBINE. 



761 



are thus two sets of buckets, the lower set being of stamped steel cast 

 into the above-mentioned central tube and an outside ring. This wheel 

 is capable of developing a larger horse-power than any of the other 

 wheels of the same diameter. The comparatively small diameter of 

 wheel required for a given power and fall is in most cases an advantage, 

 as the high speed thereby obtained reduces the cost of the gearing, and 

 there is also some saving in space and smaller structural alterations are 

 needed. The guides, which are of cast iron, can be adjusted to suit the 



Fig. 327. Gilkes & Co.'s Kendal Turbine. 



quantity of water available or the power required, consequently the 

 turbine works very efficiently with a reduced quantity of water, the best 

 result being obtained at about seven-eighths of the maximum opening. 

 The guides are practically balanced and are therefore easy to operate, 

 and hand-gear can be supplied for working them in any convenient 

 position. 



The fact that 'the water is only discharged below the wheel frequently 

 very greatly lessens the masonry alterations necessary when a water- 



