Fig. 22. 



and passes over the edge of the 

 drum between it and the steam 

 jacket in a thin film 3 milime- 

 ters back to the front part 

 where it is elevated through a 

 pipe to the right by the centrifu- 

 gal force of the wings on the 

 drum. The steam enters the 

 jacket through the other pipe. 

 This gave me the idea of con- 

 structing a heater for A. H. 

 Barber & Co., of Chicago, sec- 

 tional cut of which is shown- 

 in Fig. 23. 



It consists of a cast iron base 

 I, in which a turbine flyer f is 

 inserted and driven by steam 

 from pipe fs. It has also pipe T 

 for the exhaust, but this is, as a 



rule, closed by the damper K, when not less than 1,000 

 pounds per hour is treated. Fig. 23 is a cross section of the 

 heater where G is a galvanized cylinder riveted to the base 

 and provided with an annular tin gutter H. D is a slightly 



conical tin drum soldered ~to a 

 tinned brass or malleable iron bottom 

 with a spindle which fits in the cup 

 C revolved by the turbine flyer f . The 

 drum D is strengthened by a hoop 

 at the top, into which is riveted a 

 cross (r) of four rods which again 

 brace the 1-inch pipe P that acts as 



. spindle for the drum. The cylinder 



Fig. 23. G has a flat cover with a cross bar 



B, which is held in position by two thumb screws m. In the 

 center of this bar is the upper bearing. 



The milk enters at P through a regulating cup such as 

 used for separators, and is thrown out of four small holes at 



3 



