. First series of Railway practice: a collection of working plans and practical details of construction in the public works of the most celebrated engineers comprising roads, tramroads and railroads, bridges, aqueducts, viaducts, wharfs, warehouses, roofs, and sheds, canals, locks, sluices, & the various works on rivers, streams, &c., harbours, docks, piers and jetties, tunnels, cuttings and embankments, the several works connected with the drainage of marshes, marine sands, and the irrigation of land, water-works, gas-works, water-wheels, mills, engines, &c. &c. . motion while they are in mot
. First series of Railway practice: a collection of working plans and practical details of construction in the public works of the most celebrated engineers comprising roads, tramroads and railroads, bridges, aqueducts, viaducts, wharfs, warehouses, roofs, and sheds, canals, locks, sluices, & the various works on rivers, streams, &c., harbours, docks, piers and jetties, tunnels, cuttings and embankments, the several works connected with the drainage of marshes, marine sands, and the irrigation of land, water-works, gas-works, water-wheels, mills, engines, &c. &c. . motion while they are in motion, which is not without inconvenience. One mode which appears very convenient under many circumstances for passing over curves of small radius, and in temporary ways where the loads do not require to be conveyed in large wagons or to great distances, has been applied by M. Serveille, senior, at Mendon, forthe working of a quarry,and is described in thebulletin of the Societyfor Encouragement (year1842, page 401). Itconsists in the use ofcarriages running upona narrow line of way,(see cuts.) The carriagerests crossways upon therails, and on points at equal distances from the centre between the two large conical rollers forming the wheels. It becomes displaced laterally at the curves, and rests upon points more or less distant from the base according to the nature of the curve, and in such a manner that the wagons naturally follow the curve of the road. The motion of the wheels is precisely similar to that of two distinct cones rolling upon the way. Fig. 171 The effect produced when M. Servcilles wagons enter a curve is analogous tothat whicli i)revails, under the same circumstances, with the couiiuou wagons andseparate wheels, on the ordinary lines of railway. Rut the length of the conical jxirtions lieing so much greater in M. Scr-veilles system,the lateral displacement can therefore act upon a greater width, andthe wagons, consec[uently, are enabled to pass over curves o
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Keywords: ., bookauthorbreesscs, bookcentury1800, bookdecade1840, bookyear1847
