. The Cuba review. 26 THE CUBA REVIEW water or a loading station off shore; so the type of handling equipment decided upon was a cantilever projecting into the roadstead, with its foundation at the water's edge, and a conve3or discharging to the holds of a vessel anchored under the end of this cantilever. The ore of the Ponupo Manganese Co., which is of the character indicated by its name, highly magniferous, is won in open cuttings, and brought by a short line of rail- road to a bin at the inshore end of the cantilever. It is not, however, taken directly by the conveyor of the latter, but run
. The Cuba review. 26 THE CUBA REVIEW water or a loading station off shore; so the type of handling equipment decided upon was a cantilever projecting into the roadstead, with its foundation at the water's edge, and a conve3or discharging to the holds of a vessel anchored under the end of this cantilever. The ore of the Ponupo Manganese Co., which is of the character indicated by its name, highly magniferous, is won in open cuttings, and brought by a short line of rail- road to a bin at the inshore end of the cantilever. It is not, however, taken directly by the conveyor of the latter, but runs into a 5-ton skip, and is hoisted to the summit of a hill, just back of the cantilever. Here it discharges to a hopper which feeds directly to an Allis-Chalmers Gates breaker. This crusher delivers its product, through a chute, to a bin quarried out of the rock, which has a storage capacity of 11,000 tons. The axis of the bin is in line with the cantilever. Under the center of the bin is a tunnel, through which a 30-in. Robins belt conveyor runs, con>:-nuing on out over the cantilever, and returning on the under side of the latter to complete the circuit.' The cantilever rises in a gentle slope from the mouth of the tunnel, and then falls in a steep grade towards the discharge end. The conveyor belt is 410 ft. long and will handle ore at the rate of 900 tons or more hourly. Of the other companies above mentioned, all have thus far confined their efforts to exploration work, or at least what would be known by that name on the Michigan- Minnesota iron ranges; but further developments of considerable interest, including the location in Cuba of blast furnace plants and steel mills for export trade, supplied in part with South American ores, may be looked for in the not far distant future. The shipments of Cuban iron ore by the Spanish-American Iron Co. were 1,028,000 tons during 1913, an increase over 1912 of over 100,000 tons. Here there is a long stock yard equipped with tv/
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