This was how the Great Lakes iron ore boats were unloaded.

Before the ships were built with conveyors and self-unload systems, they were unloaded with Huletts. Huletts were late 19th century technology, built into the early 1910s and the last ones used (seen in this video) into 1992. The bucket did not rotate but only moved up/down and fore/aft. The bucket operator's cab… » 10/23/14 8:46pm Thursday 8:46pm