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 43
... draught is 2. On a broken stone surface , or old flint road 3. On a gravel road - · · 4. On a broken stone road , upon a rough pavement foundation 5. On a broken stone surface , upon a bottoming of 33 lbs . 65 - 147 46 concrete formed ...
... draught is 2. On a broken stone surface , or old flint road 3. On a gravel road - · · 4. On a broken stone road , upon a rough pavement foundation 5. On a broken stone surface , upon a bottoming of 33 lbs . 65 - 147 46 concrete formed ...
Página 67
... draught , and considerably check the forward motion of a carriage . The mathematical illustration of the effect of collision in producing this resistance is given in note B. 2d . Friction has very great influence in checking the motion ...
... draught , and considerably check the forward motion of a carriage . The mathematical illustration of the effect of collision in producing this resistance is given in note B. 2d . Friction has very great influence in checking the motion ...
Página 73
... draughts of carriages ? — I am quite certain of its being perfectly correct , for we have tried it in some cases , and compared it with a weight hanging over a pully , and the results were the same . It is only in cer- It has been ...
... draughts of carriages ? — I am quite certain of its being perfectly correct , for we have tried it in some cases , and compared it with a weight hanging over a pully , and the results were the same . It is only in cer- It has been ...
Página 74
... draught on setting the body in motion , or when it is in motion ? -Both . " Then it would appear that your former calculations , as to different effects of different roads on the draughts of carriages , are correct ? —Yes , quite ...
... draught on setting the body in motion , or when it is in motion ? -Both . " Then it would appear that your former calculations , as to different effects of different roads on the draughts of carriages , are correct ? —Yes , quite ...
Página 79
... draught of a car- riage be much greater on a road which has a very soft foundation than on one which is of a rocky foundation ? —I think the difference would be very little indeed , because the yield of a good road on a soft foundation ...
... draught of a car- riage be much greater on a road which has a very soft foundation than on one which is of a rocky foundation ? —I think the difference would be very little indeed , because the yield of a good road on a soft foundation ...
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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