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 pages |
From inside the book
Results 1-5 of 5
Page 327
... dynamometer and brass cylinder are placed ; the dyna- mometer is connected by its arm to one side of the frame , and the cylinder is secured in the frame by trunnions , which are cast on it , and which turn in a circular hoop or belt ...
... dynamometer and brass cylinder are placed ; the dyna- mometer is connected by its arm to one side of the frame , and the cylinder is secured in the frame by trunnions , which are cast on it , and which turn in a circular hoop or belt ...
Page 328
... dynamometer , at which time the index will point out on the dial very nearly the weight or power which is equivalent to the draught . The divisions on the dial - plate of the dynamometer de- crease from zero upwards , in order to ...
... dynamometer , at which time the index will point out on the dial very nearly the weight or power which is equivalent to the draught . The divisions on the dial - plate of the dynamometer de- crease from zero upwards , in order to ...
Page 344
... dynamometer , which was liable to several objections ; for instance , it required some practice to be able to observe accurately the exact divisions marked by the hand , and to write them down with clear- ness and expedition ; also it ...
... dynamometer , which was liable to several objections ; for instance , it required some practice to be able to observe accurately the exact divisions marked by the hand , and to write them down with clear- ness and expedition ; also it ...
Page 345
... dynamo- meter ; but the direction of the motion of this bar being parallel to that of the paper , it is changed , by means ... dynamometer be pulled out one inch , the point will be carried across the paper nearly two inches . Even the ...
... dynamo- meter ; but the direction of the motion of this bar being parallel to that of the paper , it is changed , by means ... dynamometer be pulled out one inch , the point will be carried across the paper nearly two inches . Even the ...
Page 346
... dynamometer . Besides registration of every pull exerted by the horse , the instrument also registers the levels and diversities of the road it passes over ; this is effected by means of a heavy weight acting as a pendulum , the ...
... dynamometer . Besides registration of every pull exerted by the horse , the instrument also registers the levels and diversities of the road it passes over ; this is effected by means of a heavy weight acting as a pendulum , the ...
Contents
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 | |
Other editions - View all
Common terms and phrases
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
Popular passages
Page 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?