ENGINE No. 17. 



Simple Condensing Engine. 



Kind of engine ... 



Number of cylinders .'.... 



Diameter of each cylinder 



Diameter of piston-rod 



Stroke of piston 



Clearance 



H.P. Constant for one Ib. m.e.p. one rev. per min. . 

 Condition of valves and pistons regarding leakage . . . 



Data and Results of Feed -Water Tests. 



Four valve 



1 

 18 ins. 



21 

 30 



ins. 

 ins. 



5 % 



.031 H.P. 



Fairly tight 



Measurements Based on Sample Diagrams. 



Engine No. 17 has balanced slide valves. The condenser is 

 of the siphon pattern supplied with injection water under a 

 natural head. Steam is taken from return tubular boilers, and 

 it is presumed to be commercially dry. The valves were prac- 



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