Biennial Report, Volúmenes1-21883 |
Dentro del libro
Resultados 1-5 de 92
Página 6
... feet , in mine number three , Consolidation Coal Company's mine at Muchakinock , Iowa , on June 15 , 1882 , and died of his injuries on June 22 , and that said accident was due entirely to his own carelessness . W. P. TODD , W. B. ...
... feet , in mine number three , Consolidation Coal Company's mine at Muchakinock , Iowa , on June 15 , 1882 , and died of his injuries on June 22 , and that said accident was due entirely to his own carelessness . W. P. TODD , W. B. ...
Página 13
... feet , and a drill hole two hundred feet in depth will test the coal in any por- tion of the county , as the lower seam of coal rests directly upon the concretionary limestone , with only from three to six feet of clay and shale between ...
... feet , and a drill hole two hundred feet in depth will test the coal in any por- tion of the county , as the lower seam of coal rests directly upon the concretionary limestone , with only from three to six feet of clay and shale between ...
Página 14
... feet , while the coal measures are about one hun- dred and fifty feet ; and as the coal lays near the limestone , a drill hole would test the coal any place in the county at three hundred feet . WAPELLO COUNTY . The Des Moines river ...
... feet , while the coal measures are about one hun- dred and fifty feet ; and as the coal lays near the limestone , a drill hole would test the coal any place in the county at three hundred feet . WAPELLO COUNTY . The Des Moines river ...
Página 15
... feet in diameter , giving a volume of air of fifty - one thousand cubic feet per minute ; there was considerable delay in getting the ventilation of this mine in proper shape . On my last visit , before the fan was put in , I found only ...
... feet in diameter , giving a volume of air of fifty - one thousand cubic feet per minute ; there was considerable delay in getting the ventilation of this mine in proper shape . On my last visit , before the fan was put in , I found only ...
Página 16
... feet per minute . As this was the first fan in the What Cheer district , there was considerable interest manifested by other operators to know what the volume of air would be if the fan was run at two hundred revolutions per minute ...
... feet per minute . As this was the first fan in the What Cheer district , there was considerable interest manifested by other operators to know what the volume of air would be if the fan was run at two hundred revolutions per minute ...
Otras ediciones - Ver todas
Términos y frases comunes
accident air-way Albia Angus appointed bituminous coal Bituminous shales black-damp Blue sand shales Boone county Boonesboro cage carbonic acid cause charge Coal and Mining Coal Company coal measures coal mines comply condition Coroner court creek cubic feet Dark death district dollars Drift deposit duties engine entry escape shaft examination feet per minute five furnace furnish Governor Gray clay shales hoisting shaft hole hundred feet Impure inches inspection inspector of mines jurors Kalo Keokuk county Kirkville labor Light limestone located Lucas county machinery Mahaska county map or plan MCELHANY miles miners mining boss Mining Company mining law Moines river oaths do say opening Oskaloosa Ottumwa owner or agent persons employed Polk county pressure proper railroad rock roof safety safety-lamp sandstone shaft or slope side superintendent therein thereof thickness thousand tion underground ventilation volume of air Wapello county William