▁sun ny ▁days ▁to ▁dry ▁the ▁br icks . ▁ ▁It ▁employed ▁ 2 3 ▁men ▁working ▁in ▁various ▁roles ▁focused ▁around ▁a ▁new ▁machine ▁in ▁ 1 8 7 4 ▁which ▁allowed ▁for ▁the ▁manufact uring ▁of ▁br icks ▁to ▁be ▁industrial ized . ▁The ▁machine ▁was ▁Graham ' s ▁pat ent ▁and ▁introduced ▁to ▁Washington , ▁DC ▁by ▁S . ▁E . ▁Hen kins ▁representing ▁the ▁National ▁Br ick ▁Machine ▁Company ▁based ▁in ▁New ▁Jersey ▁allowing ▁for ▁the ▁manufact uring ▁of ▁between ▁ 4 0 , 0 0 0 ▁and ▁ 6 0 , 0 0 0 ▁br icks ▁a ▁day . ▁This ▁machine ▁was ▁power ed ▁by ▁a ▁forty - hor se power ▁engine ▁( h oused ▁in ▁the ▁main ▁building ). ▁Bar rows ▁of ▁loose ▁cl ay ▁and ▁stones ▁were ▁thrown ▁in ▁a ▁ho pper ▁where ▁they ▁would ▁be ▁cr ushed ▁by ▁four ▁two ▁feet ▁in ▁diameter ▁roll ers . ▁The ▁pul ver ized ▁cl ay ▁pow der ▁would ▁then ▁drop ▁in ▁a ▁mixing ▁cyl inder ▁where ▁it ▁would ▁we ▁ste amed . ▁It ▁would ▁then ▁make ▁its ▁way ▁into ▁a ▁v at . ▁A ▁convey or ▁bel t ▁of ▁bu ckets ▁would ▁collect ▁just ▁enough ▁to ▁form ▁a ▁brick . ▁The ▁wet ▁cl ay ▁would ▁then ▁fall ▁into ▁a ▁m old ▁before ▁dro pping ▁on ▁a ▁convey or ▁bel t . ▁From ▁there ▁they ▁were ▁taken ▁off ▁by ▁men ▁and ▁transport ed ▁on ▁bar rows ▁to ▁a ▁dry ing ▁room ▁prior ▁to ▁being ▁fired ▁up ▁in ▁the ▁kil