Reports of the Inspectors of Mines of the anthracite and bituminous coal regions of Pennsylvania, for the year .. . k. I1 Off. Doc] Third Anthracite District. Ill of work performed than when he has to raise them to a height of fourfeet eight inches. Those cars, constructed similar to ordinary railroad cars, having thewheels inside the journals, are unavoidably high, because the bottommust be raised above the wheels, while those having the wheels outsidethe journals can be constructed having the bottom of the car resting onthe axles and thus a reduction in height equal to nearly one-half thedia
Reports of the Inspectors of Mines of the anthracite and bituminous coal regions of Pennsylvania, for the year .. . k. I1 Off. Doc] Third Anthracite District. Ill of work performed than when he has to raise them to a height of fourfeet eight inches. Those cars, constructed similar to ordinary railroad cars, having thewheels inside the journals, are unavoidably high, because the bottommust be raised above the wheels, while those having the wheels outsidethe journals can be constructed having the bottom of the car resting onthe axles and thus a reduction in height equal to nearly one-half thediameter of the wheels is effected. Much of the power expended in the haulage of the cars might also besaved if closer attention was given to a proper construction of thewheels with a view of providing a more perfect means of lubrication. Mine car wheels which rotate on the overnecks of the axles outsidethe sill-bearings almost universally have simply a hole in the hub intoor at which oil is poured at intervals, and oil thus applied is mostlywasted. Both ends of the hub being open allows it to drip along thetracks c
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectcoalmin, bookyear1889
