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 sivua |
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Sivu 42
... increased . The experiments detailed in Mr. Telford's Seventh Report of the Parliamentary Commissioners of the Holyhead Road , made with a newly invented machine for measuring the force of traction re- quired to 42 A TREATISE ON ROADS .
... increased . The experiments detailed in Mr. Telford's Seventh Report of the Parliamentary Commissioners of the Holyhead Road , made with a newly invented machine for measuring the force of traction re- quired to 42 A TREATISE ON ROADS .
Sivu 43
... force of traction re- quired to draw carriages over different roads , fully establish this fact . * The following is a table of the general results of the experiments made with a stage coach , on the same description of road ; but on ...
... force of traction re- quired to draw carriages over different roads , fully establish this fact . * The following is a table of the general results of the experiments made with a stage coach , on the same description of road ; but on ...
Sivu 44
... Force required . 1 in 20 6 miles per hour 268 lbs . 1 in 26 6 213 lbs . 1 in 30 6 165 lbs . 1 in 40 6 160 lbs . 1 in 600 6 111 lbs . 1 in 20 1 in 26 1 in 30 1 in 40 1 in 600 ∞∞∞∞∞ 8 miles per hour 296 lbs . 8 219 lbs . 8 196 lbs ...
... Force required . 1 in 20 6 miles per hour 268 lbs . 1 in 26 6 213 lbs . 1 in 30 6 165 lbs . 1 in 40 6 160 lbs . 1 in 600 6 111 lbs . 1 in 20 1 in 26 1 in 30 1 in 40 1 in 600 ∞∞∞∞∞ 8 miles per hour 296 lbs . 8 219 lbs . 8 196 lbs ...
Sivu 45
... force down- ward . Now , acclivities which are less steep than the angle of repose give a compensation in descend- ing for the excessive tractive force they require in ascending ; that is the case with acclivities between the perfect ...
... force down- ward . Now , acclivities which are less steep than the angle of repose give a compensation in descend- ing for the excessive tractive force they require in ascending ; that is the case with acclivities between the perfect ...
Sivu 54
... avoid crossing parks , or demesnes , and , to a certain extent , no doubt it should ; but this mo- tive ought not to be allowed to have much weight , where the consequence is to force the road over an 54 A TREATISE ON ROADS .
... avoid crossing parks , or demesnes , and , to a certain extent , no doubt it should ; but this mo- tive ought not to be allowed to have much weight , where the consequence is to force the road over an 54 A TREATISE ON ROADS .
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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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Sivu 21 - Fcp. 8vo. 10s. cloth; bound in roan, 12s. MAUNDER.-THE BIOGRAPHICAL TREASURY; Consisting of Memoirs, Sketches, and brief Notices of above 12,000 Eminent Persons of all Age. and Nations, from the Earliest Period of History; forming a new and complete Dictionary of Universal Biography.
Sivu 13 - Visits to Remarkable Places : Old Halls, Battle-Fields, and Scenes illustrative of Striking Passages in English History and Poetry. By WILLIAM HOWITT. 2 vols. square crown 8vo. with Wood Engravings, 25s. The Rural Life of England.
Sivu 25 - Guide ; containing ample Descriptions of all the fine leading varieties of Roses, regularly classed in their respective Families ; their History and Mode of Culture. Fifth Edition, corrected and improved. Fcp.
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Sivu 22 - Murray's Encyclopaedia of Geography ; comprising a complete Description of the Earth : Exhibiting its Relation to the Heavenly Bodies, its Physical Structure, the Natural History of each Country, and the Industry, Commerce, Political Institutions, and Civil and Social State of All Nations. Second Edition ; with 82 Maps, and upwards of 1,000 other Woodcuts. 8vo. price 60s. Neale.
Sivu 4 - A New Recension of the Text, with a carefully amended Punctuation- and copious NOTES, Critical, Philological, and Explanatory, almost...
Sivu 3 - Modern Cookery in all its Branches, reduced to a System of Easy Practice. For the use of Private Families. In a Series of Receipts, all of which have been strictly tested, and are given with the most minute exactness. By ELIZA ACTON. New Edition : with Directions for Carving, and other Additions.
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Sivu 12 - Edition, with Additions and Corrections ; and numerous Figures illustrative of the Umbelliferous Plants, the Composite Plants, the Grasses, and the Ferns.