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 sider |
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Resultater 1-5 af 28
Side 112
... axles . According to this , a horse of great power would be able to draw on such a road , if horizontal , six tons and three quarters ; and if with no greater inclination than 1 in 50 , two tons and a quarter . The same experiments show ...
... axles . According to this , a horse of great power would be able to draw on such a road , if horizontal , six tons and three quarters ; and if with no greater inclination than 1 in 50 , two tons and a quarter . The same experiments show ...
Side 123
... axles are frequent and violent . But when a paved street is properly made , the surface of it will be comparatively smooth , and then both the number and force of the strokes of the axles on the boxes , and conse- quently the noise made ...
... axles are frequent and violent . But when a paved street is properly made , the surface of it will be comparatively smooth , and then both the number and force of the strokes of the axles on the boxes , and conse- quently the noise made ...
Side 258
... axles of iron . cubic yard of earth . Hammers . Two descriptions of hammers , which are the most useful in road works , are represented in Plate VII . figs . 15 and 16. The handles should be flexible and made of straight grained ash ...
... axles of iron . cubic yard of earth . Hammers . Two descriptions of hammers , which are the most useful in road works , are represented in Plate VII . figs . 15 and 16. The handles should be flexible and made of straight grained ash ...
Side 298
... axles , it is evident that small wheels , by turning oftener round , and swifter about their axles than large ones , must have much more friction . Again , if we consider wheels as they sink into holes , or soft earth , the large wheels ...
... axles , it is evident that small wheels , by turning oftener round , and swifter about their axles than large ones , must have much more friction . Again , if we consider wheels as they sink into holes , or soft earth , the large wheels ...
Side 299
... axle . " If the wheels were always to roll on smooth or level ground , it would be best to make the spokes perpendicular to the naves or to the axles , because they would then bear the load perpendicu- larly . But because the ground is ...
... axle . " If the wheels were always to roll on smooth or level ground , it would be best to make the spokes perpendicular to the naves or to the axles , because they would then bear the load perpendicu- larly . But because the ground is ...
Indhold
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Almindelige termer og sætninger
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
Populære passager
Side 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?