▁in ▁diameter ▁at ▁a ▁point ▁ ▁below ▁the ▁top . ▁The ▁fl ue ▁is ▁ 2 ▁feet ▁ 6 ▁inches ▁in ▁diameter . ▁The ▁main ▁entrance ▁is ▁on ▁the ▁front ▁of ▁the ▁building . ▁The ▁vest ib ule ▁is ▁ ▁by ▁, ▁and ▁on ▁either ▁side ▁of ▁it ▁are ▁the ▁office ▁and ▁to ile t ▁room , ▁both ▁ ▁by ▁, ▁the ▁three ▁forming ▁a ▁projection ▁from ▁the ▁main ▁building ▁ ▁by ▁. ▁ ▁P ump ing ▁equipment ▁The ▁All is - Ch al mers ▁Company ▁furn ished ▁the ▁p ump ing ▁equipment , ▁which ▁was ▁a ▁horizontal , ▁cross - comp ound , ▁fly w heel ▁engine ▁fitted ▁with ▁Cor l iss ▁val ve ▁g ear , ▁and ▁operating ▁two ▁horizontal , ▁outside ▁pack ed , ▁pl ung er ▁p umps . ▁The ▁high ▁and ▁low ▁pressure ▁steam ▁p ist ons ▁were ▁ 1 4 ▁inches ▁and ▁ 2 8 ▁inches ▁in ▁diameter , ▁respectively , ▁and ▁the ▁p ump ▁pl ung ers ▁ 8 % ▁inches ▁in ▁diameter , ▁all ▁having ▁a ▁stroke ▁of ▁ 1 8 ▁inches . ▁The ▁capacity ▁of ▁the ▁engine ▁at ▁ 6 5 ▁revolution s ▁per ▁minute ▁was ▁ 1 , 5 0 0 , 0 0 0 ▁gall ons ▁in ▁twenty - four ▁hours . ▁The ▁engine ▁which ▁was ▁ere cted ▁by ▁the ▁Bla ke ▁& ▁Know les ▁Ste am ▁P ump ▁Works ▁was ▁of ▁the ▁horizontal , ▁cross - comp ound , ▁direct - act ing ▁type , ▁operating ▁two ▁outside ▁pack ed ,