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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Resultados 1-5 de 70
Página 3
... hard , will there be a saving of horse labour , a cheaper description of horse may be employed , less food will be consumed , and fewer servants wanted . The expense of travelling , and the charges for the carriage of goods , will be ...
... hard , will there be a saving of horse labour , a cheaper description of horse may be employed , less food will be consumed , and fewer servants wanted . The expense of travelling , and the charges for the carriage of goods , will be ...
Página 46
... hard as can be , and a good class of carriage rolling upon it , I suppose , at a rough estimate , one in forty would be the angle of repose . I should advise the great roads not to be more steep than one in forty . " Hilly ground is not ...
... hard as can be , and a good class of carriage rolling upon it , I suppose , at a rough estimate , one in forty would be the angle of repose . I should advise the great roads not to be more steep than one in forty . " Hilly ground is not ...
Página 57
... hard . If it possessed all these qualities in absolute perfection , the consequence would be it would require no tractive power at all . An impulse given to a load at one end would carry it to the other by its inertia alone . This is ...
... hard . If it possessed all these qualities in absolute perfection , the consequence would be it would require no tractive power at all . An impulse given to a load at one end would carry it to the other by its inertia alone . This is ...
Página 63
... hard and solid as well as smooth . Dr. Lardner says , - " Until a compara- tively late period a very prevalent , indeed almost universal error obtained with respect to roads . All that people considered was what they conceived to be an ...
... hard and solid as well as smooth . Dr. Lardner says , - " Until a compara- tively late period a very prevalent , indeed almost universal error obtained with respect to roads . All that people considered was what they conceived to be an ...
Página 64
... hard- ness , the absence , in fact , of elasticity . " One of the most important and most obviously correct principles of road - making is that which requires a road to be made of a substance in due proportion to the weight and number ...
... hard- ness , the absence , in fact , of elasticity . " One of the most important and most obviously correct principles of road - making is that which requires a road to be made of a substance in due proportion to the weight and number ...
Índice
235 | |
241 | |
244 | |
251 | |
257 | |
263 | |
272 | |
295 | |
100 | |
118 | |
130 | |
156 | |
167 | |
173 | |
185 | |
187 | |
191 | |
203 | |
209 | |
231 | |
303 | |
310 | |
321 | |
338 | |
348 | |
360 | |
367 | |
385 | |
433 | |
436 | |
451 | |
458 | |
Outras edições - Ver tudo
A Treatise on Roads: Wherein the Principles on which Roads Should be Made ... Sir Henry Parnell Visualização integral - 1837 |
A Treatise on Roads: Wherein the Principles on which Roads Should be Made ... Sir Henry Parnell Visualização integral - 1838 |
A Treatise on Roads: Wherein the Principles on which Roads Should be Made ... Sir Henry Parnell Visualização integral - 1833 |
Palavras e frases frequentes
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
Passagens conhecidas
Página 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?