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The Pamphlet Collection of Sir Robert Stout: Volume 62

Capabilities of Hydraulic Cranes

Capabilities of Hydraulic Cranes.

According to Mr Rawson, the Engineer to the Board, the hydraulic cranes at Greymouth load coal at a cost, for working expenses with interest and depreciation, of 2½d per ton. When, however, a number of cranes are worked at once this cost would be less, probably about 2d per ton of coal. Under favorable circumstances the hydraulic cranes can load 100 tons per hour.