A Treatise on Practical and Theoretical Mine VentilationJ. Wiley & Sons, 1904 - 141 sivua |
Kirjan sisältä
Sivu 94
... dust floating in the air when compared with bituminous mines : however , we are not sure but that it may apply in ... coal - dust as it travels on its course , or from the force and flame assisted by an instantaneous emission of ...
... dust floating in the air when compared with bituminous mines : however , we are not sure but that it may apply in ... coal - dust as it travels on its course , or from the force and flame assisted by an instantaneous emission of ...
Sivu 95
... powder or fire - damp is much increased when coal - dust is present . " 4. That , on any partial vacuum being formed in an underground coal - working , fire - damp will instantly issue in dangerous quantity ; and there are fair grounds ...
... powder or fire - damp is much increased when coal - dust is present . " 4. That , on any partial vacuum being formed in an underground coal - working , fire - damp will instantly issue in dangerous quantity ; and there are fair grounds ...
Sivu 96
... coal - dust ; that in blasting with charges not exceeding twelve ounces , accompanied by the proper preparation of holing and side - cutting , there is little liability of this taking place . " To discard all shot - firing means , in ...
... coal - dust ; that in blasting with charges not exceeding twelve ounces , accompanied by the proper preparation of holing and side - cutting , there is little liability of this taking place . " To discard all shot - firing means , in ...
Sivu 136
... Coal - dust explosions , 94 . Co - efficient of friction , 47 . ' Colliery Guardian , " 94 . Colliery warnings , 108 . Comparative economy of furnace and fan , 117 . Comparison of fans , 111 . of air and gases , 4 . Composition of air ...
... Coal - dust explosions , 94 . Co - efficient of friction , 47 . ' Colliery Guardian , " 94 . Colliery warnings , 108 . Comparative economy of furnace and fan , 117 . Comparison of fans , 111 . of air and gases , 4 . Composition of air ...
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Yleiset termit ja lausekkeet
100 cubic feet air circulating air gave air in mines air passing air-column air-course air-current airway amount anemometer asphyxia atmosphere barometer brattice carbonic acid Clanny coal coal-dust Colliery column cubic foot cubic inches Davy Davy lamp diameter discharge districts double downcast drifts Engineering equal explosion feet of air feet per minute feet square fire-damp flame formula furnace gallery gases gauze hence horse-power inches of mercury inches water-gauge increased inflammable ksv2 length Manual marsh-gas measured mechanical ventilators Mechanics mercury method miners morocco motive-column Mueseler lamp multiplied number of revolutions oxygen perimeter piston pounds per square pressure per square pressure required proportional quan quantity of air regulators resistance revolutions per minute rubbing-surface safety-lamp sectional area shaft shutter smaller airway splitting square feet square foot Suppose temperature Text-book tion tity total pressure Treatise tube upcast velocity ventilating pressure volume of air water-gauge
Suositut otteet
Sivu 149 - Manual of Elementary Problems in the Linear Perspective of Form and Shadow T 2iIi0, i oo Plane Problems in Elementary Geometry I2mo, i 23 Primary Geometry i2mo, 75 Elements of Descriptive Geometry, Shadows, and Perspective 8vo, 3 50 General Problems of Shades and Shadows 8vo, 3 oo Elements of Machine Construction and Drawing 8vo, 7 so Problems, Theorems, and Examples in Descriptive Geometry 8vo. 2 50 Weisbach's Kinematics and the Power of Transmission.
Sivu 147 - Fuertes's Water and Public Health 12mo, 1 50 Water-filtration Works 12mo. 2 50 Ganguillet and Kutter's General Formula for the Uniform Flow of Water in Rivers and Other Channels.
Sivu 143 - Blowpipe. i2mo, morocco, i 50 Furman's Manual of Practical Assaying 8vo, 3 oo Lodge's Notes on Assaying and Metallurgical Laboratory Experiments .... 8vo, 3 oo Miller's Manual of Assaying i2mo, i oo O'Driscoll's Notes on the Treatment of Gold Ores 8vo, 2 oo Ricketts and Miller's Notes on Assaying 8vo, 3 oo "Dike's Modern Electrolytic Copper Refining.