A Treatise on Roads: Wherein the Principles on which Roads Should be Made are Explained and Illustrated, by the Plans, Specifications, and Contracts Made Use of by Thomas Telford, Esq. on the Holyhead RoadLongman, Orme, Brown, Green, and Longmans, 1838 - 465 sider |
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Resultater 1-5 af 82
Side 65
... six inches in thickness . * Whereas , instead of this weak and defective system , it may be laid down as a general rule , that on every main road where numerous heavy waggons and stage coaches heavily laden are constantly travelling ...
... six inches in thickness . * Whereas , instead of this weak and defective system , it may be laid down as a general rule , that on every main road where numerous heavy waggons and stage coaches heavily laden are constantly travelling ...
Side 71
... six inches of broken stones is sufficient when laid on a pavement , and the pavement may be made with any kind of common stone . If the stones in making the bottoming are laid with their broadest face downwards , and the inter- stices ...
... six inches of broken stones is sufficient when laid on a pavement , and the pavement may be made with any kind of common stone . If the stones in making the bottoming are laid with their broadest face downwards , and the inter- stices ...
Side 73
... six inches of broken stone of great hardness , laid on a foundation of large stones , set in the form of a pavement , the power required is 46 lbs . ; on a road made with a thick coating of broken stone , laid on earth , the power ...
... six inches of broken stone of great hardness , laid on a foundation of large stones , set in the form of a pavement , the power required is 46 lbs . ; on a road made with a thick coating of broken stone , laid on earth , the power ...
Side 75
... inches of surface , but that is carried to a large pitching stone below , which rests on the soil , and the weight is distributed over a large surface at the bottom ; that is to say , over a surface a foot or nine inches long , and six ...
... inches of surface , but that is carried to a large pitching stone below , which rests on the soil , and the weight is distributed over a large surface at the bottom ; that is to say , over a surface a foot or nine inches long , and six ...
Side 90
... six feet ; viz . thirty feet for the carriage way , and six feet for the ... inches thick , evenly laid , and closely jointed . " The slopes of the ... inches thick . " The surface of the bed for the materials of the carriage way is to be ...
... six feet ; viz . thirty feet for the carriage way , and six feet for the ... inches thick , evenly laid , and closely jointed . " The slopes of the ... inches thick . " The surface of the bed for the materials of the carriage way is to be ...
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Almindelige termer og sætninger
Allesley arch Archway Road axles bottom breadth brick bridge broken stones built carriage centre coach coating commissioners constructed contract contractor Coventry cross drains DAVIES GILBERT depôts depth draught dynamometer earth eighteen inches elasticity embankments engineer expense experiments feet wide fences foot footpath fore wheels formed foundation four inches friction gravel ground half hard Hartshill height hill hind wheels Holyhead Road horizontal horses improvement inches deep inches thick inches wide instrument John Kershaw John Macneill labour laid length line of road manner masonry ment miles mortar mound necessary nine inches paved pavement placed Plate VII proper quicksets rails rates of inclination repair road-making roadway ruts side channels side springs six inches slopes specification spirit level springs square streets surface surveyor Telford theodolite Thomas Baylis three feet three inches trustees turnpike roads turnpike trusts upper velocity waggon whole wing walls
Populære passager
Side 20 - They will here meet with rutts which I actually measured four feet deep, and floating with mud only from a wet summer; what therefore must it be after a winter?