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 25
small diam-11 12 ENGINEERING eter (2 to 4 in.) extending from head to head throughwhich the hot gases from the furnace pass on theirway to the stack. This boiler, which comes in thethird class, is probably more extensively used in theUnited States for stationary service than any othertype. The… … STANDARD HORIZONTAL BOILER WITH FULL-ARCH FRONT SETTING. and having the lower ends of the tubes connected to amud drum, which is also connected to the opposite endof the steam drum, thus providing for a free circula-tion of the water. Of the latter type there have beenmany different kinds evolved…