Handbook of Railroad Construction: For the Use of American Engineers. Containing the Necessary Rules, Tables, and Formulæ for the Location, Construction, Equipment, and Management of Railroads, as Built in the United States ... |
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Common terms and phrases
abutment amount angle applied arch axle blast pipe boiler borrow pits bottom boxes braces bridge cables cars cast-iron cement cent centre coal coke compression contractor cost cubic feet cubic foot curvature curve cylinder D. K. Clark degree of curvature depth diameter dimensions distance driving wheels earth embankment engine Erie Railroad excavation feet grade feet span five flange foot formula freight fuel gives grate area heat horizontal hundred feet inclined increase joints laid leading wheels length load locomotive lower chord machinery material miles per hour mortar motion passenger piers pile pile bridging piston placed plate pounds pressure radius rail railroad resistance rivets road rock rods side slope speed square inch steam stone strength surface tension thickness timber tons trains truss truss bridges tubes twenty velocity vertical weight wheels whence whole width wood wrought iron yard
Popular passages
Page 417 - All subordinates should be accountable to, and directed by, their immediate superiors only. Each officer must have authority, with the approval of the general superintendent, to appoint all persons for whose acts he is held responsible, and to dismiss any subordinate when in his judgment the interests of the company
Page 416 - through a system of daily reports and checks that will not embarrass principal officers nor lessen their influence with their subordinates. Sixth. The adoption of a system, as a whole, which will not only enable the
Page 401 - The apparatus consisted of a bent axle, which was firmly fixed up to the elbow in timber, and which was subjected to torsion by means of a cog-wheel connected with the end of the horizontal part. At each turn the angle of torsion was twenty-four degrees. A shock was
Page 456 - opposite directions, whilst the telegraph may be used effectually in preventing them, either from trains moving in an opposite, or the same direction; and it is a well established fact deduced from the history of railroads, both in Europe and in this country, that collisions
Page 77 - to be thrown over the bank, leaving the track and road-bed in a neat and workmanlike shape. DELIVERY OF MATERIALS. The ties and sills to be delivered at some point on the road as near as possible to the places where they are to be used, in no case requiring more than one thousand feet of
Page 81 - On the acceptance of a proposal, the chief engineer will give notice thereof to the person proposing, by letter directed to his stated address; and in twenty days from the date of such notice, provided there be no impediment on the part of the company, or in twenty days after such impediment is removed if there be,
Page 275 - without being too loose. And with all this there should be interposed between the rails and the solid ground, some medium sufficiently elastic to absorb the effect of the blows of the wheels, without being crushed or forced down into the ballast, and yet stiff enough to keep the upper surface of the rails in a uniform plane.
Page 80 - for estimating any changes as above mentioned is understood to be the schedule exhibited at the letting. NO LIQUOR, AND GOOD ORDER. The contractor shall not sell, or allow to be sold or brought within the limits of his work any spirituous liquors, and will in every way discountenance their use by persons in his employ. He will do all
Page 6 - that the diminished cost of transport by railroad invariably augments the amount of commerce transacted, and in a much larger ratio than the reduction of cost. It is estimated by Dr. Lardner, that
Page 456 - A single track railroad may be rendered more safe and efficient, by a proper use of the telegraph, than a double track railroad without its aid,— as the double track can only obviate collisions which occur between trains