In 1912, for example, the Hoadley Knight Machine was developed for mining coal. Primitive by modern standards, it used an electric motor, hydraulic swings and water sprays to breakdown rock faces.

Gov. Patrick Morrisey said the efforts by crews about three-fourths of a mile into the Rolling Thunder Mine remained a rescue ...

Western Coalfields Limited is driving this expansion across Chandrapur, Yavatmal, Nagpur, and Amravati districts. Advanced ...