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 281
NE CO. Engines may be divided into two general classes,viz., simple and compound. A simple engine may be either condensing or non-condensing, but its leading characteristic is, that thesteam is used in but one cylinder, and from thence it isexhausted either into the atmosphere or into a con-denser.… … *::tf%