How Engineer Helps Railway 175 



A feed-water heater of an efficient un- 

 breakable yet easily cleanable type is fitted, 

 the feed pump is of the Duplex slow speed 

 type. For such a small locomotive the water 

 tank may be described as of generous 

 capacity. In addition to the usual man 

 and hand-holes an accessible, cleanable 

 strainer is provided in the delivery pipe; 

 each axle is driven by adjustable roller 

 chains from a cross shaft by the engine and 

 crankshaft through a pair of bevel spur 

 wheels. 



The axles are of high tensile steel, 

 accurately ground in the journals; for the 

 axle boxes cast steel, bronze bushed is 

 employed; these are automatically lubri- 

 cated. The driving wheels have centres of 

 mild steel with separate mild steel tyres; 

 the brake gear is operated both by hand 

 and steam power; sanding gear of a very 

 simple pattern is provided, whilst the buffing 

 gear is of standard design for work with 

 rolling-stock of the normal type. The sus- 

 pension gear is of the usual semi-elliptic 

 spring type. 



