Caption: Book - Mining Engineering Overview (1913)
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A pi\ 1 bucket nicr travels horizontally bcl the floor in lit < 1 b\ movable plat< . ri alon the : the 'uikli tnd returns overhead, dumping aul tically int ns, :h holdin na ol il 01 It) toi he re\ ing i rccn and th< ihak i n n.i III ,l ; " " ' '"• inclo <\ and delivi i i bin underneath vibrating a i n it u I foi i i\ f < ma I .1 m 1 tWv> \
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