Twentieth century hand-book for steam engineers and electricians, with questions and answers .. (1905)
Swingle, C. F. [from old catalog], Horstmann, Henry Charles, 1858- [from old catalog], Tousley, Victor Hugo, 1875- [from old catalog] · Chicago, F. J. Drake & co. · leaf 49
thescale, which is sure to form in the lower connection, tobe cleaned out. The best point at which to connect thelower pipe with the boiler is in the lower part of the 36 ENGINEERING head just below the bottom row of tubes, and near theside of the boiler on which the water column is tostand; \% or… … AUXILIAEY SPRING PRESSURE GAUGE. able valve which should be opened at frequent intervalsto allow the mud and dirt to blow out of the water col-umn and its connections. This is a very importantpoint, and great care should be taken to keep thewater column and all its connections thoroughly cleanat…
