A Manual of the Principles and Practice of Road-making: Comprising the Location, Consruction, and Improvement of Roads (common, Macadam, Paved, Plank, Etc.) and Rail-roads |
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Common terms and phrases
advantages amount ascent bottom break of gauge bridge broad gauge broken stone calculation carriages cars centre cents clinometer common roads construction cost cross-section cubic yard curve depth descent diameter direction distance ditches draught draw earth embankment employed engine equal excavation and embankment expense filled foot formula Franklin Institute friction Gayffier given grade gravity ground height hill Holyhead horizontal horse inches inclination increased iron John Macneill ken stones labor laid length less lessen load materials McAdam ment method middle miles per hour narrow gauge oblique obtained Parnell pass pavement perpendicular plank road portion prismoidal profitable proportion radius railroads rails Railways resistance ridge road-bed sand side side-slopes sleepers slope solid speed square station steep straight edge straight line surface tangent thalweg thickness timber tion tons track usually vehicles velocity versed sine vertical wagons wear wheels width
Popular passages
Page 28 - Direct it flies and rapid, Shattering that it may reach, and shattering what it reaches. My son ! the road, the human being travels, That, on which BLESSING comes and goes, doth follow The river's course, the valley's playful windings, Curves round the corn-field and the hill of vines, Honouring the holy bounds of property ! And thus secure, though late, leads to its end.
Page 211 - All the irregularities of the upper part of the said pavement are to be broken off by the hammer, and all the interstices to be filled with stone chips, firmly wedged or packed by hand, with a light hammer ; so that when the whole pavement is finished, there shall be a convexity of 4 inches in the breadth of 15 feet from the centre.
Page 261 - ... that nothing could do more harm towards the adoption of railroads than the promulgation of such nonsense, as that we shall see locomotive engines travelling at the rate of 12, 16, 18, and 20 miles an hour.
Page 35 - ... man, owing to its anatomical formation and great weight. Though a horse on a level is as strong as five men, on a grade of 15 per cent, it is less strong than three...
Page 342 - Every overseer of highways shall have power to require a team ; or a cart, wagon or plough, with a pair of horses or oxen, and a man to manage them ; from any person having the same within his district, who shall have been assessed three days or more, and who shall not have commuted for his assessment ; and the person furnishing the same upon such requisition, shall be entitled to a credit of three days for each day's service therewith.