Improvements in and relating to economisers and such like plant for recovering the waste heat from gases issuing from steam boiler flues and the like

摘要

233,494. Brown, D. March 29, 1924. Feed-water, heating.-Waste gases from a steam boiler &c. A on their way to the chimney E are passed through a pipe or pipes B of ogee formation submerged in water in tanks C supplied from a cistern F.