11. In late 2003 Coalpower went into administration, in part due to geological problems at the coal face affecting production. 12. Someone who is " at the coal face " of an activity is personally involved in doing that activity. 13. As the coal face burns and the immediate area is depleted, the oxidants injected are controlled by the operator. 14. Grierson's boss at the EMB moved to the Harry Watt, 1936 ) and " Coal Face " ( dir. 15. The machine works by " shearing " coal from a longwall coal face as it moved along the face. 16. This mine boasts of a regular underground train service to ferry workers from the mine shaft to the coal face . 17. The explosion had been planned to open new coal faces , but unexpectedly released lethal amounts of methane and coal dust. 18. All the districts in Dennis were worked by the longwall system where the coal face was mined in single blocks. 19. They would often work 12-hour shifts, making several runs down to the coal face and back to the surface again. 20. The Barnsley seam was worked until 1934 by hand-got tub stalls when mechanical conveying was introduced at the coal face .
