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 páginas |
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Página 45
... acclivity down which the carriage will not roll of its own accord - down which it will not roll by its own gravity . On more steep accli- vities the carriage will roll down without any trac- tive power ; every acclivity under that limit ...
... acclivity down which the carriage will not roll of its own accord - down which it will not roll by its own gravity . On more steep accli- vities the carriage will roll down without any trac- tive power ; every acclivity under that limit ...
Página 60
... acclivity greater than 1 in 40 , there will be 20 per per cent . saving over one that rises 1 in 20 ; this is a fact not generally known , but it is quite certain ; that is to say , a road that has acclivities of 1 in 20 will cost 18 or ...
... acclivity greater than 1 in 40 , there will be 20 per per cent . saving over one that rises 1 in 20 ; this is a fact not generally known , but it is quite certain ; that is to say , a road that has acclivities of 1 in 20 will cost 18 or ...
Página 89
... acclivity are to be strictly adhered to , and it is expressly stipulated that the contractor is to satisfy himself by his own measurement , or in any way he may think proper , as to the heights and depths FORMING A ROAD . 89 Footpaths.
... acclivity are to be strictly adhered to , and it is expressly stipulated that the contractor is to satisfy himself by his own measurement , or in any way he may think proper , as to the heights and depths FORMING A ROAD . 89 Footpaths.
Página 323
... acclivity to what it would be if it was horizon- tal ; the comparison of the corrected draughts will show the friction arising from the surface in each case . Thus , suppose the average draught over a portion of the road , which has ...
... acclivity to what it would be if it was horizon- tal ; the comparison of the corrected draughts will show the friction arising from the surface in each case . Thus , suppose the average draught over a portion of the road , which has ...
Página 330
... the draught at every ten or twenty yards , it points out the distance run , and the rates of acclivity or declivity on every part of the road . ferent from the velocity of the axis up the inclined 8 330 APPENDIX , NO . I.
... the draught at every ten or twenty yards , it points out the distance run , and the rates of acclivity or declivity on every part of the road . ferent from the velocity of the axis up the inclined 8 330 APPENDIX , NO . I.
Outras edições - Ver todos
A Treatise on Roads: Wherein the Principles on which Roads Should be Made ... Sir Henry Parnell Visualização completa - 1837 |
A Treatise on Roads: Wherein the Principles on which Roads Should be Made ... Sir Henry Parnell Visualização completa - 1833 |
A Treatise on Roads: Wherein the Principles on which Roads Should be Made ... Sir Henry Parnell Visualização completa - 1838 |
Termos e frases comuns
2d Edition abutments acclivity Allesley arch axle bottom breadth bridge broken stones built carriage centre cloth coach coating commissioners considerable constructed contractor Coventry cross drains depôts depth draught drawing earth eighteen inches elasticity embankments engineer Engravings expense experiments fences foot footpath formed Foster's Booth foundation four inches gravel half hard Hartshill hill hind Holyhead Road horizontal horses improvement inches deep inches thick inches wide J. C. LOUDON John Kershaw labour laid length line of road London masonry materials ment miles necessary nine inches North Wales paved pavement placed Plate posts principle proper quicksets Rates of Inclination repair road-making roadway side channels side springs six inches slopes spirit level Stowe Hill surface surveyor Telford Thomas Baylis three inches tractive TREATISE trustees turnpike roads turnpike trusts velocity Vignette Titles vols waggon weight wheels whole wing walls Woodcuts yards
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