The Economic Theory of the Location of Railways: An Analysis of the Conditions Controlling the Laying Out of Railways in Effect this Most Judicious Expenditure of Capital |
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Page 3
... force has been the keen com- petitive struggle to bring the first cost of every bridge as low as possible , and yet do nothing which shall injure its permanent efficiency and compel it to be speedily rebuilt ; nothing , in other words ...
... force has been the keen com- petitive struggle to bring the first cost of every bridge as low as possible , and yet do nothing which shall injure its permanent efficiency and compel it to be speedily rebuilt ; nothing , in other words ...
Page 32
... force in certain individual cases is universally recognized by intelligent men , can be made against the reten- tion by the individual of all such " unearned increment , " but in the general judgment of mankind the argument on the other ...
... force in certain individual cases is universally recognized by intelligent men , can be made against the reten- tion by the individual of all such " unearned increment , " but in the general judgment of mankind the argument on the other ...
Page 256
... force from one side to the other alternately . On a curve every truck in the train tends rather to hug the outside rail with the front outer wheel - in a manner shown in Fig . 17 , of which we shall speak more fully shortly - both the ...
... force from one side to the other alternately . On a curve every truck in the train tends rather to hug the outside rail with the front outer wheel - in a manner shown in Fig . 17 , of which we shall speak more fully shortly - both the ...
Page 257
... force in detail . 260. The truth is that nothing but a standing miracle keeps either curvature or any other of a dozen causes of accident from being a fruitful source of disaster . The marvellous safety of railway travel in the face of ...
... force in detail . 260. The truth is that nothing but a standing miracle keeps either curvature or any other of a dozen causes of accident from being a fruitful source of disaster . The marvellous safety of railway travel in the face of ...
Page 268
... force becomes so great that either the speed must be checked , or the additional pressure against the outside rail becomes objectionable . 269. In the days of hand - brakes and iron rails this necessity of checking speed on sharp curves ...
... force becomes so great that either the speed must be checked , or the additional pressure against the outside rail becomes objectionable . 269. In the days of hand - brakes and iron rails this necessity of checking speed on sharp curves ...
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Common terms and phrases
actual additional adhesion American amount assumed average axle boiler brakes cars cause centrifugal force cents per train-mile Class coal coefficient of friction computed considerable consumption curvature curve resistance cylinder decrease degree of curvature difference distance drivers effect engine repairs estimate expenditure fact feet flange freight trains friction fuel given gradients greater haul heavy important increase labor length less limits load locomotive long ton loss maintenance maximum mile run mileage miles per hour nearly number of trains operating expenses passenger trains Pennsylvania Railroad percentage practice pressure probably profit proportion pusher radius railway rate of grade ratio receipts reduce revenue rise and fall rolling friction ruling grade ruling gradient Southern Railway speed station statistics steam superelevation Table tangent tender tion tons total cost track tractive power traffic train resistance train wages train-load truck vary velocity vertical wear weight wheel-base wheels
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