Twentieth century handbook for steam engineers and electricians, with questions and answers; a practical nontechnical treatise on the care and management of steam engines, boilers and electric machinery (1922)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & company · leaf 212
kers 199 made for the regulation of the supply of fuel according tothe demand upon the boiler for steam; also that the in-termittent opening and closing of the furnace doors^ as inhand firings thereby admitting a large volume of cold airdirectly into the furnace on top of the fire^ is avoided.… … Fig. 77cahall vertical boiler with chain grate stoker attached Firsts 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…
