. Steel rails; their history, properties, strength and manufacture, with notes on the principles of rolling stock and track design . Fig. 83. — Pole Tie. 120 STEEL RAILS. ought to be laid upon the fact that ties cut according to this shape will all betreated) it will be possible to utilize a great many logs which now do not maketies, and also to cut a good many more ties out of the same amount of timberthan under the present specifications. The cutting of ties of this new form will be essentially a sawmill proposi-tion. Where now there is a great deal of waste in hewing, if the log were sawed,
. Steel rails; their history, properties, strength and manufacture, with notes on the principles of rolling stock and track design . Fig. 83. — Pole Tie. 120 STEEL RAILS. ought to be laid upon the fact that ties cut according to this shape will all betreated) it will be possible to utilize a great many logs which now do not maketies, and also to cut a good many more ties out of the same amount of timberthan under the present specifications. The cutting of ties of this new form will be essentially a sawmill proposi-tion. Where now there is a great deal of waste in hewing, if the log were sawed, it would mean the obtaining of severalboards on the side. The number ofboards to be sawed from a tree 16 inchesin diameter, making two ties, will dependlargely upon the value of the timber fromwhich the ties are made. For instance,it will pay to make as many boards aspossible out of a 16-inch, two-tie log ofred oak or gum, while with timber likeloblolly pine, the lumber of which has alow value, it will at present not pay tocut off many boards. In the case of suchtimber an extreme form of the half-roundtie will be applicable (Fig. 84).The influence which the new t
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Keywords: ., bookcentury1900, bookdecade1910, bookidsteelrailsth, bookyear1913
