Improvements in the Tubes of Apparatus for Superheating Steam and the Feed-water of Steam-generating Plants.

摘要

191014,334. Brunner, E. June 14. Drawings to Specification. Metal tubes.-In steam-superheating or feedwater heating tubes having internal spiral baffles, the baffles are formed with serrated or notched edges in order to prevent erosion of the sides of the tubes by overheating . The baffles may be made with knife-edges.