Twentieth century handbook for steam engineers and electricians, with questions and answers; a practical nontechnical treatise .. (1916)
Swingle, Calvin F. (Calvin Franklin), b. 1846 · Chicago, F.J. Drake & company · leaf 212
Fig. 77cahall vertica boiler with chain grate stoker attached First, that the cost of properly installing them is sogreat that their use is practically prohibited to the smallmanufacturer. Second, that in case of a sudden demand upon the boilersfor more steam the automatic stoker cannot respond…
