COAL: Rumble of Revolution

In its Mathies Mine, Pittsburgh Consolidation Coal Co. put to work last week a machine that set up the rumble of revolution in coal mining. In 60 seconds, the "Continuous Miner" of the Joy Manufacturing Co. (TIME, April 5) ripped two tons of coal off the pitface and loaded it into a shuttle train.

Joy has already delivered 13 machines, expects to turn out 300 more for which it has orders by the end of 1949. Joy's president, J. D. A. Morrow, and many of his customers are confident that they will "create a new era in coal mining."

Would the new...

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