Trolley wazachipatala (Carcher Cart) amatchula kusintha kwa zida zamankhwala m'mabwalo omwe amagwiritsidwa ntchito m'zipatala zazikulu, zamankhwala zamankhwala komanso kugwiritsa ntchito bwino tsiku ndi tsiku. Kukula kwakukulu, kumatha kuchepetsa nkhawa kwa osamalira.