LOSSES AT ELBOWS 



257 



Loss OP HEAD IN COMMEKCIAL ELBOWS AND TEES (continued). 



by Professor E. W. Schoder, Messrs. D. H. Daley, P. Bain, and G. J. 

 Davis, 1 on common cast-iron and malleable -iron short turn, screw end 

 elbows and tees in wrought-iron pipe lines give the results shown in the 

 following tables. The range of sizes is from f inch to 6 inches diameter. 

 In these fittings the inside " burr " at the ends of the pipes, caused by the 

 wheel pipe cutter, had been reamed out. Two sets of experiments were 

 carried out with each tee pipe. Tn the one, a short length of pipe with a 



The Cornell Ciril Engineer, Vol. 20, No. 3, December, 1911. 



H.A. 



