3 records  
Number  Name Description (tasks and duties) Unit Groups 


Miners and QuarrymenWorkers in this unit group extract solid minerals from underground or surface mines and quarries. Their functions include: extracting coal, ores and other solid minerals from underground or surface mines; extracting granite, limestone, slate, flint or other kinds of stone from quarries; setting and operating machines which cut channels in mine workface, drill holes into mine or quarry workface for blasting or extract coal automatically from coal seam; determining positions and force of explosions required, and charging and firing explosives, to dislodge solid mineral from mine or quarry workface; cutting, fitting and installing wood or steel props, pillars and arches to support walls and roofs of underground workings; collecting samples of coal or ore for laboratory analysis; extracting chalk, clay, gravel or sand from open pits; performing other tasks related to the foregoing.


Mineral and Stone TreatersWorkers in this unit group prepare ores, stone and other minerals for distribution or further processing. Their functions include: drilling holes and driving wedges into quarried stone to break it into slabs or blocks; operating machines which crush and break lumps of mineral (except chemicals) to required size; operating grinding mill to pulverise stone and mineral-bearing ores; operating batteries of jigs or flotation machines to separate mineral from gangue; tending equipment which precipitates gold or silver from cyanide solution onto zinc; tending gravity device to separate slate and rock from coal; performing related tasks.


Well-Drillers, Borers and Related WorkersWorkers in this unit group erect and operate drilling plant and perform related tasks in the sinking and operation of wells. Their functions include: preparing and operating derrick pipe-handling devices and slush pumps; operating rotary or percussion drilling plant to drill oil or gas wells; cementing openings in walls or casings of oil or gas wells; cleaning and servicing oil or gas wells and repairing and replacing pumping rods, casings and tubings; treating oil and gas wells with acid to increase their production; setting up and operating drilling plant to drill wells or bores other than for oil or gas; performing related tasks.
  3 records  

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