superheated to from 86 to 1 13 degrees Fahrenheit (30 to 45 degrees centigrade). 

 Professor Schroter, in 1895, conducted a series of tests on a boiler and engine 

 especially designed and built for use with superheated steam by William Schmidt. 

 This engine, utilizing steam at 156 pounds pressure, superheated to 235 degrees, 

 while developing approximately 75 horse power showed a steam consumption 

 of 10.4 pounds per indicated horse power or approximately 1.3 pounds of coal per 

 indicated horse power. The published results of these tests aroused considerable 

 interest through Europe and a number of Schmidt superheaters and engines were 

 installed. Interest in the whole subject of the use of superheated steam revived, 

 particularly in Europe, and a number of designs of superheaters, both integral 

 and separately fired, were brought out. Babcock & Wilcox, Limited, built its first 

 superheaters in 1895 and their success was immediate. 



The Babcock & Wilcox Co. began building superheaters in 1898 and 

 this company was the first to commercially market apparatus of this type in 

 this country. 



