Mbiri ya zoyezera zowoneka bwino zachuma zitha kutumizidwanso kumayambiriro kwa zaka za m'ma 1900, ndipo zakonzedwa bwino kwambiri zaukadaulo {{1}
Zochitika Zoyambirira
Lingaliro la oyeretsa owongoka ku Rusuum itha kutumizidwanso ku 1901, pamene Injiniya wa ku Britain Hooth adapanga zoyeretsa zoyambirira zamagetsi} ngakhale oyeretsa oyambilira agwiritsidwa ntchito, adayika kubala kwamakono
Kusintha kwaukadaulo ndi kutchuka
Popita nthawi, mapangidwe a oyeretsa a vacuum pang'onopang'ono adayamba kuwalandira. oyeretsa {{3}
Mapangidwe amakono ndi magwiridwe antchito
Oyeretsa amakono owongoka adapangidwa ndi kutsindika kwa ogwiritsa ntchito ndi magwiridwe antchito ambiri, monga madera ena owoneka bwino, omwe ali oyenera kuyenda bwino, zomwe zimakulitsa zotsatira zoyeretsa komanso zosavuta {{}}
