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Author: Admin | 2025-04-28
The doors, bratticing and stoppings maintains efficient ventilation.[23] The first firemen, covered by sackcloth soaked in water, crawled into the area where gas was present on their bellies holding a long pole with a candle attached to explode the firedamp before the miners began their shift. They were sometimes called the “penitent” because of their ragged appearance.[24][25]Furnace: used in the 19th century to ventilate the underground workings. The furnace was usually at the bottom of the upcast shaft, which acted as a chimney, creating airflow throughout the workings.[15]GGannister Gannister is hard, compact, siliceous fireclay found in the floor of some coal seams which can be used to make firebricks.[26][27]Gate A gate is a tunnel serving the coal face, the maingate is where fresh air enters and the tailgate is where spent air exits.[27]Gin A gin or horse ginHorse-driven engine used in lead and shallow coal mines. is a drum and framework with pulleys used to raise coal from shallow depths. A gin pit is a shallow pit shaft worked by a gin.[28]Goaf The goaf, gove, gob, shut or waste is the void from which all the coal in a seam has been extracted and where the roof is allowed to collapse in a controlled manner.[2][27]Gob fire A gob fire occurs by spontaneous combustion caused by the oxydisation of iron pyrites by moisture in the goaf. [29]HHeadframe The headframe, headstocks or headgear is the framework holding the winding wheel over the shaft.[30]Heave Heave refers to the floor of a roadway lifting as a result of ground stresses, reducing the roadway height.[15]Hewer A hewer is a coal face worker who digs coal, loosening it with a pick.[31]Hoppet A hoppet is a large bucket attached to the winding rope that was used to remove spoil during shaft sinking and in place of the
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