Hutton, Frederick Remsen, 1853-1918 · New York, J. Wiley & sons; London, Chapman & Hall, limited · leaf 679
WER PLANTS jet of high-pressure steam or air directed upon the surface tobe cleansed from a nozzle (Fig. 497). The tube brush or scraperis passed through the tube and scrapes the surface clean, butthe steam-jet acting at high velocity seems to have a specialcleaning effect, and is used either… … Fig. 497. means of a simple short-length of pipe coupled to the steam-space in the boiler by means of a flexible hose. The settingsof sectional boilers usually have openings made through theirwalls in which pipes are built, and through which pipes thecleansing jet of steam can be inserted at…
Mechanical engineering · Steam power plants
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