A Manual of the Principles and Practice of Road-making: ...and Rail-roadsA.S. Barnes & Company, 1852 - 372 pages |
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A Manual of the Principles and Practice of Road-Making: ...and Rail-Roads William Mitchell Gillespie No preview available - 2016 |
Common terms and phrases
advantages amount ascent bottom break of gauge broad gauge broken stone broken-stone roads calculation carriage carried cars centre cents clinometer common roads construction cost cubic yard curve depth descending diameter direction distance ditches draught draw earth embankment employed engine equal excavation and embankment expense feet filled foot formula Franklin Institute friction Gayffier grade gravity ground height hill Holyhead horizontal horse improvement inches inclination increased iron John Macneill labor laid length less lessen load locomotive longitudinal materials McAdam ment middle miles per hour narrow narrow gauge obliquely obtained Parnell pass pavement perpendicular plank road portion principles prismoidal profitable proportion radius railroads rails railway resistance ridge road-bed side side-slopes sleepers slope speed square station steep straight edge straight line streams surface thalweg thickness timbers tion tons track train usually valley vehicles velocity versed sine vertical 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 340 - 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...
Page 146 - ... quantity of the several kinds of work which are to be paid for under this contract, and he shall determine all questions in relation to said work and the construction thereof, and he shall in all cases decide every question which may arise relative to the execution of this contract on the part of the said Contractor, and his estimate and decision shall be final and conclusive...
Page 220 - ... with their joints parallel and perpendicular to the direction of the road, they wear away most rapidly upon the edges which run across the road, since these receive most directly the shocks of the wheels, and that the stones thus become convex. To prevent this, and Fig. 112. to secure equal wear, they should be laid so that the joints cross the road obliquely, making an angle of 45° with the axis of the roadway.
Page 33 - ... great weight. Though a horse, on a level, is as strong as five men, yet on a steep hill it is less strong than three...
Page 209 - Upon the level bed prepared for the road materials, a bottom course, or layer of stones, is to be set by hand, in form of a close firm pavement ; the stones set in the middle of the road are to be 7 inches , in depth: at 9 feet from the center, 5 inches; at 12 from the center, 4 inches; and at 15 feet, 3 inches.
Page 339 - At many turnpikes, it has been said, the money levied is more than double of what is necessary for executing, in the completest manner, the work, which is often executed in a very slovenly manner, and sometimes not executed at all.
Page 146 - Leading along he knows not whence or whither. Yet through its fairy course, go where it will, The torrent stops it not, the rugged rock Opens and lets it in ; and on it runs, Winning its easy way from clime to clime Through glens locked up before.
Page 285 - ... way, in the cost of locomotive power, or in the other annual expenses, any adequate reduction to compensate for the additional first cost.
Page 209 - The paved spaces, on each side of the eighteen middle feet, are to be coated with broken stones, or well cleansed, strong gravel, up to the footpath or other boundary of the road, so as to make the whole convexity of the road six inches from the centre to the sides of it. The whole of the materials are to be covered with a binding of an inch...