Tuhia he tohutoro mō tēnei wāhanga - Mo te 1904 St. Louis World's Fair
, I whakauruhia e Lewis te rama rapu waro nui rawa atu o te ao ki runga ake o te kopu, 135 waewae i runga ake i te taumata o te huarahi. E waru taranata, 80 inihi te marama i hangaia e General Electric i te tau 1903, i hangaia e te rama rapu te iti rawa 1 piriona rama rama. E whitu-waewae te roa o te aranga waro o te rama, e whakaarahia ana e nga tokotoko waro, e whakaatahia ana ki roto i te whakaata karaihe paraihe e whakanui ana i te marama.