'The Mountaineer,60 cubic yard shovel: the Mountaineer is the world's largest shovel; it is the largest unit of mobile land machinery ever constructed in this country. It will be used to remove earth and rock overburden, with a maximum average of 90 feet in depth (under favorable contour conditions, the machine will be able to go to a top maximum of 120 feet of overburden), from the 4 1/2 foot Pittsburgh coal seam in Eastern Ohio. Although the four large machines which Hanna has had in service for several years at its open-cut mines are among the largest ever built, they are not capable of removing overburden averaging as much as 90 feet in depth. The Mountaineer makes possible the recovery of millions of tons of coal not recoverable with the smaller machines.'
'50 Cubic-Yard Shovel at Georgetown No. 12 Mine of Hanna Coal Company, Division of Pittsburgh Consolidation Coal Company: These electric shovels are used to remove the earth and rock overburden from the coal seam. In a month's time, they will each remove as much as 1,600,000 cubic yards, or some 2,400,000 tons. If this material were to be loaded into open railroad cars, it would fill some 48,000 of them.'
'The nature of Hanna Coal's surface mining operations is illustrated here. Among the company's seven strip shovels for removing the overburden and uncovering the 52-inch vein of coal, are four giants weighing in the neighborhood of 1,800 tons each, equipped with booms up to 120 feet long, and with scoops having a capacity up to 50 cubic yards. Each of these large shovels can move enough stone and earth per year to cover a football field more than a mile high.'
'The nature of Hanna Coal's surface mining operations is illustrated here. Among the company's seven strip shovels for removing the overburden and uncovering the 52-inch vein of coal, are four giants weighing in the neighborhood of 1,800 tons each, equipped with booms up to 120 feet long, and with scoops having a capacity up to 50 cubic yards. Each of these large shovels can move enough stone and earth per year to cover a football field more than a mile high.'
Truck Parked in a 50 Cubic Yard Shovel at Georgetown No. 12 Mine
Description:
'Close-up view of dipper on 50 cubic-yard shovel at Georgetown No. 12 Mine of Hanna Coal Company, Division of Pittsburgh Consolidation Coal Company. These electric shovels are used to remove the earth and rock overburden from the coal seam. In a month's time, they will each remove as much as 1,600.000 cubic yards, or some 2,400.000 tons. If this material were to be loaded into open railroad cars, it would fill some 48,000 of them.'
