. Steel rails; their history, properties, strength and manufacture, with notes on the principles of rolling stock and track design . COMPRESSION TENSION Fig. 159. — Railroad Track Experiments, Boston and Albany R. R. it. A beam carrying a micrometer and an astronomical level bubble were usedin observing the depression of the rail (see Fig. 160), first measuring the height,using points on the outer flange, when the rail was unloaded, and repeating theobservations when the engine was standing on the track. It was found that the roadbed in the vicinity of the locomotives was sensiblydepressed and
. Steel rails; their history, properties, strength and manufacture, with notes on the principles of rolling stock and track design . COMPRESSION TENSION Fig. 159. — Railroad Track Experiments, Boston and Albany R. R. it. A beam carrying a micrometer and an astronomical level bubble were usedin observing the depression of the rail (see Fig. 160), first measuring the height,using points on the outer flange, when the rail was unloaded, and repeating theobservations when the engine was standing on the track. It was found that the roadbed in the vicinity of the locomotives was sensiblydepressed and that the bench marks were within the influence of that was possible to detect a depression of the roadbed as far as 91 inches from thelocomotive at the side of the track. A correction for the depression of the bench marks was obtained by meansof a cantilever supported 10 feet from the track, and the total depression of * House Executive Documents, 3rd Session, 53rd Congress, 1894-95, Vol. 30, Tests of Metals, etc. 220 STEEL RAILS. Fig. 160. —Railroad Track of Levehng Instrument for Measuring the Depression of the Track.
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Keywords: ., bookcentury1900, bookdecade1910, bookidsteelrailsth, bookyear1913
