Bulletin, Utgave 347U.S. Government Printing Office, 1931 |
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Resultat 1-5 av 6
Side 6
... Colorado , and Their Effect on Mining Bull . 317 , Bureau of Mines , 1930 , 66 pp . GASES IN TIMBERED MINES 7 tected only once and then 6 GASES THAT OCCUR IN METAL MINES Cripple Creek district, Colo- rado_ Rock-strata gases-
... Colorado , and Their Effect on Mining Bull . 317 , Bureau of Mines , 1930 , 66 pp . GASES IN TIMBERED MINES 7 tected only once and then 6 GASES THAT OCCUR IN METAL MINES Cripple Creek district, Colo- rado_ Rock-strata gases-
Side 9
... Bull . 188 , Bureau of Mines , 1922 , 50 pp . Harrington , D. , Pickard , B. O. , and Wolflin , H. M. , Metal - Mine Fires : Tech . Paper 314 , Bureau of Mines , 1923 , 20 pp . 11 Gregory , F. C .. Fires and Fire Prevention in Lake ...
... Bull . 188 , Bureau of Mines , 1922 , 50 pp . Harrington , D. , Pickard , B. O. , and Wolflin , H. M. , Metal - Mine Fires : Tech . Paper 314 , Bureau of Mines , 1923 , 20 pp . 11 Gregory , F. C .. Fires and Fire Prevention in Lake ...
Side 11
... , Robertson , I. W. , and Oberfell , G. G. , Black Damp in Mines : Bull . 105 , Bureau of Mines , 1916 , 88 pp . Under certain conditions unconsciousness is the result , and when Properties of gases- Nitrogen ____ Carbon dioxide Oxygen.
... , Robertson , I. W. , and Oberfell , G. G. , Black Damp in Mines : Bull . 105 , Bureau of Mines , 1916 , 88 pp . Under certain conditions unconsciousness is the result , and when Properties of gases- Nitrogen ____ Carbon dioxide Oxygen.
Side 13
... Operations : Bull . 48 , Bureau of Mines , 1914 , 50 pp . wise safeguarding of transportation and of storage of explosives in Carbon monoxide Oxides of nitrogen_ Precautions against gases found in metal mines_ Fire precautions.
... Operations : Bull . 48 , Bureau of Mines , 1914 , 50 pp . wise safeguarding of transportation and of storage of explosives in Carbon monoxide Oxides of nitrogen_ Precautions against gases found in metal mines_ Fire precautions.
Side 15
... Bull . 204 , Bureau of Mines , 1923 , 131 pp . Rice , G. S. , and Sayers , R. R. , Review of Safety and Health Conditions in the Mines at Butte Bull . 257 , Bureau of Mines , 1925 , 29 pp . 17 Richardson , A. S. , Ventilation Problems ...
... Bull . 204 , Bureau of Mines , 1923 , 131 pp . Rice , G. S. , and Sayers , R. R. , Review of Safety and Health Conditions in the Mines at Butte Bull . 257 , Bureau of Mines , 1925 , 29 pp . 17 Richardson , A. S. , Ventilation Problems ...
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Vanlige uttrykk og setninger
activated iodine pentoxide adequate amounts asphyxial asphyxial gases atmosphere Bull Bureau of Mines burning candle carbide lamp carbon dioxide carbon monoxide cent of carbon cent of oxygen Circ circulation of air coal mines combustible material decidedly dangerous deficient in oxygen dioxide and nitrogen dry-bulb temperatures efficiency electric arc explosive gas extinguished fire hazards flame safety lamp found in metal gas mask GASES FOUND gases high GASES IN METAL Gilpin County Harrington high in carbon hydrogen sulphide ignitions of methane inflammable inhaled Investigations killed metal mines metal-mine blasting metal-mine fires miners numerous open light oxides of nitrogen oxygen breathing apparatus oxygen content palladium chloride percentage of carbon poisonous gases PRECAUTIONS AGAINST GASES Pyrotannic Acid Method quantities relative humidity Rept respiratory protection result rock Rock-Strata Gases Sayers SCOTT TURNER shallow shafts strata sulphur dioxide sulphur gases Tech tested tion tunnel type N gas underground United States Bureau unventilated winze workers Yant
Populære avsnitt
Side 5 - ... are a result of the action of atmospheric air and mine water upon the sulphides and carbonates in the fissured rock.
Side 9 - Some of the heaviest losses of life in metal-mine fires have resulted from the burning of less than a railroad freight car or only a few cords of timber.