Show LATE DISCOVERY engineers of the united states go ge survey express tile tho opinion that it Is possible po seible to double or treble tile the capacity of a steaming plant out making any radical changes in furnaces or boilers the increase requiring that about double or treble the quan quantities titter of air be put through the fuel beds bed and boilers the oasis fol foi this opinion Is set form in a report by walter T ray ana henry Kr elsinger which I 1 has just been pun pui lis bushed lied I 1 I 1 tifis bulletin is announced as the first arst of a series or of two or taree oliree on the significance of drafts in steam practice the succeeding bulletins to follow the same lines out but to bo be te be of more advanced advance d character tho the conclusions presented are tentative and are the result of a study or of ono one ot the many problems growing out or ol the general plan of the survey to increase the efficiency with which the coals of tho the country are being used greater efficiency requires better boller boiler and furnace design and means tt a conservation of th the e fuel resources resource es of tile the country As a result of these investigations the authors believe it may oe do possible to raise the rate of working me boiler heating surface to three or even tour times its present value lucli an increase would undoubtedly mean now new designs of grates stokers smokers sto kers ru macos and boilers especially fitted for high lates of working fan equipments prents de to supply three or times as much air under several times the pressure would be provided with more efficient engines an additional lac tor favoring high capacity working |