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Show A Motor Shovel. In unloading ore or coal from the holds of vessels on the Great Lakes there is always a certain amount of material in corners and between hatches that cannot be reached by the unloading buckets. The dock superin-1 tendent at Buffalo has designed a mo- j tor-driven scraper shovel that moves . such material much faster than it can be moved by hand. The machine car-1 ries a shovel that can be raised and . dumped automatically, but whenever i possible the ore or coal is pushed underneath un-derneath the hatch openings, where j the unloading buckets haul it out of j the ship. The power-scraper shovel is said to do the work of from 12 to 40 shovelers, according to the type of boat; and to save from one to five hours' time In the unloading process. |