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 297
... hind wheels . The following observations , which were drawn up for the Commissioners of Inquiry into the Post Office , will explain fully what is proper to be done on each of these points . ON THE CONSTRUCTION OF COACHES . In order to ...
... hind wheels . The following observations , which were drawn up for the Commissioners of Inquiry into the Post Office , will explain fully what is proper to be done on each of these points . ON THE CONSTRUCTION OF COACHES . In order to ...
Página 298
... hind wheels . Extract from HUTTON'S Mathematical Dictionary . Article " Wheel . " " The height of the wheel is of material conside- ration , as the spokes act as levers ; the greater the length , therefore , of the spokes , or , what is ...
... hind wheels . Extract from HUTTON'S Mathematical Dictionary . Article " Wheel . " " The height of the wheel is of material conside- ration , as the spokes act as levers ; the greater the length , therefore , of the spokes , or , what is ...
Página 299
... hind wheels , as is usually the case . " It is accounted a great disadvantage in small wheels , that as the axle is below the bow of the horses ' breasts , the horses not only have the loaded carriage to draw along , but also part of ...
... hind wheels , as is usually the case . " It is accounted a great disadvantage in small wheels , that as the axle is below the bow of the horses ' breasts , the horses not only have the loaded carriage to draw along , but also part of ...
Página 301
... hind ones , many disadvantages attend this con- struction . A considerable force is lost that would be effectual if they were large . The carriage would go on much more easily if the fore wheels were as high as the hind ones , and the ...
... hind ones , many disadvantages attend this con- struction . A considerable force is lost that would be effectual if they were large . The carriage would go on much more easily if the fore wheels were as high as the hind ones , and the ...
Página 302
... hind wheels , although the fore wheels , being less than the hind ones , are with so much the greater difficulty drawn . 66 By throwing the greatest part of the load on the small wheels the draught becomes doubly severe on the horses ...
... hind wheels , although the fore wheels , being less than the hind ones , are with so much the greater difficulty drawn . 66 By throwing the greatest part of the load on the small wheels the draught becomes doubly severe on the horses ...
Índice
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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?