Report ... |
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Resultados 1-5 de 12
Página 55
... their duties . I The Inspectors are giving special attention to the subject of underground ventilation , which so intimately affects the health of the miners , and their reports deal with Annual Report of the Chief Inspector of Mines.
... their duties . I The Inspectors are giving special attention to the subject of underground ventilation , which so intimately affects the health of the miners , and their reports deal with Annual Report of the Chief Inspector of Mines.
Página 56
... ventilation and sanitation of our mines are fairly good ; one or two exceptions as regards venti- lation are engaging attention , and a remedy is being sought . In one or two respects the necessity has been disclosed for amendations of ...
... ventilation and sanitation of our mines are fairly good ; one or two exceptions as regards venti- lation are engaging attention , and a remedy is being sought . In one or two respects the necessity has been disclosed for amendations of ...
Página 72
... Ventilation . The underground mines in the divisions under my supervision are of two kinds , viz . , metalliferous and coal . Of the former the number that are now working is 22 , with varying depths below the surface of the ground from ...
... Ventilation . The underground mines in the divisions under my supervision are of two kinds , viz . , metalliferous and coal . Of the former the number that are now working is 22 , with varying depths below the surface of the ground from ...
Página 73
... Ventilation in Use . - The metalliferous mines depend almost entirely on natural ventilation , aided in some few cases by small " blowers or by the exhaust from the machine drills worked by compressed air . The result , on the whole ...
... Ventilation in Use . - The metalliferous mines depend almost entirely on natural ventilation , aided in some few cases by small " blowers or by the exhaust from the machine drills worked by compressed air . The result , on the whole ...
Página 74
... ventilation is complete , as all upcast must then be at the west end of the mine , where the tem- perature is , on account of the limestone belt and pyritic for- mation , always much higher than at any other part . From the foregoing it ...
... ventilation is complete , as all upcast must then be at the west end of the mine , where the tem- perature is , on account of the limestone belt and pyritic for- mation , always much higher than at any other part . From the foregoing it ...
Términos y frases comunes
12 feet 20 feet 31st December accident acres adit alluvial arsenopyrite Beaconsfield boundary bruises cage carrying channel City of Hobart Coal Company copper Cox's Bight Creek crosscut east crushed depth district Ditto Ditto drive dwts east reef explosives feet feet further feet west feet wide flat fractures further west Gate reefs gelignite gold-bearing Golden Gate gossan granite ground Grubb's shaft Gully hill Hobart inches injured intersected Loane's reef lode Lyell main reef main shaft Mangana Married Mathinna Miner's Dream mineral Mount Cameron Name of Sufferer north and south north-west occur outcrop passed payable prospecting pyrites pyrrhotite quantity quartz quartz veins quartzite reef formation reef-channel Renison Bell rock sandstone schist Section shoot slate sluice South Gate stone stope strata sunk surface Tasmania Gold Tasmanian Consols tion tons truck tunnel underground underlay ventilation west reef western reef width winze Zeehan zone