Hutton, Frederick Remsen, 1853-1918 · New York, J. Wiley & sons; London, Chapman & Hall, limited · leaf 666
coils soas to keep them full of water,they will make steam whichwill escape through the check-valve into the boiler, leaving apart of the heater exposed tooverheating. (4) They require to becleansed from soot or tarrydeposit by careful scraping inorder to be kept efficient. Theformation of scale… … ZOWOFF Fig. 492^ 608 MECHANICAL ENGINEERING OF POWER PLANTS
Mechanical engineering · Steam power plants
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.