41. The fire, which began early Sunday, was triggered by an electric cable igniting in the main shaft , Xinhua said. 42. The next section is the middles and goes from top fork down the main shaft to the bottom fork. 43. An extreme rock-climb ( graded E3, 5c ) is possible up the main shaft which requires very dry conditions. 44. In 1892 the main shaft was 501 feet deep, and production was reported to be 334, 552 tons of pyrite. 45. It is covered in conical rooftop that rotates, made of wood, from which springs the main shaft and sail axis. 46. Channel One television said the site of the blast was five 5 kilometers ( 3 miles ) from Taizhina's main shaft . 47. Finley, team engineer and shock specialist on Jimmy Spencer's team, built a set of shocks with a much larger main shaft . 48. By 1900 the main shaft was deep and selective mining methods were being used and two Wilfley Concentrators were in operation. 49. It gained its name as it allowed the Gaping Gill system to be entered even when the Main Shaft was in flood. 50. Rescuers could hear hammering behind rock that sealed the main shaft of Heye mine, in Hunan province, said the official, reached by telephone.
