▁col lapsed , ▁while ▁the ▁French ▁occupation ▁of ▁the ▁Ru hr ▁destroyed ▁the ▁chance ▁to ▁profit ▁from ▁the ▁re par ations ▁contract ▁that ▁had ▁been ▁made ▁with ▁the ▁French ▁industrial ist ▁Guy ▁Louis ▁Jean ▁de ▁Lub ers ac . ▁With ▁the ▁help ▁of ▁several ▁banks , ▁the ▁company ▁( now ▁known ▁as ▁Ho cht ief ▁Akt ien gesellschaft ▁für ▁Hoch - ▁und ▁T ief baut en ▁vorm . ▁Geb r ü der ▁H elf mann ) ▁avoided ▁ins ol ven cy . ▁In ▁the ▁after math ▁of ▁the ▁St inn es ▁collapse , ▁the ▁major ▁utility ▁R WE ▁and ▁elect rical ▁equipment ▁producer ▁A EG ▁became ▁major ▁share - hold ers ▁in ▁Ho cht ief , ▁and ▁Hans ▁We id mann ▁stepped ▁down ▁in ▁ 1 9 2 7 . ▁ ▁A ▁series ▁of ▁major ▁construction ▁projects ▁en su ed , ▁including ▁the ▁E ch els bach ▁Bridge ▁( then ▁Germany ' s ▁largest ▁single ▁span ▁rein for ced ▁concrete ▁bridge ), ▁the ▁Schl uch see ▁dam ▁and ▁work ▁at ▁the ▁Z oll verein ▁col li ery . ▁The ▁Z oll verein ▁architect s ▁Fritz ▁Sch upp ▁and ▁Martin ▁K rem mer ▁seem ▁to ▁be ▁influenced ▁by ▁the ▁Bau haus , ▁one ▁of ▁the ▁reasons ▁the ▁complex ▁became ▁a ▁UN ES CO ▁World ▁Heritage ▁Site . ▁ ▁The ▁icon ic ▁Sh aft ▁ 1 2 ▁at ▁the ▁col li ery ▁was ▁named ▁after ▁Albert ▁V ög ler , ▁CE O ▁of ▁the ▁Verein igte ▁St ahl werke ▁AG , ▁which ▁was ▁owner ▁of