. The roads and railroads, vehicles, and modes of travelling, of ancient and modern countries; with accounts of bridges, tunnels, and canals, in various parts of the world .. . LOCOMOTIVE CARRIAGES. 30] In Hancocks toilers the water is contained betweena number of upright plates of iron, as in the followinglateral view. The water is thus distributed into thin Fig. 11. sheets, between which the flame and smoke pass up fromthe fire below to the chimney. The plates are connectedtogether by tubes at the bottom and top, the former forthe water and the latter for the steam. In all steam-carriages, e
. The roads and railroads, vehicles, and modes of travelling, of ancient and modern countries; with accounts of bridges, tunnels, and canals, in various parts of the world .. . LOCOMOTIVE CARRIAGES. 30] In Hancocks toilers the water is contained betweena number of upright plates of iron, as in the followinglateral view. The water is thus distributed into thin Fig. 11. sheets, between which the flame and smoke pass up fromthe fire below to the chimney. The plates are connectedtogether by tubes at the bottom and top, the former forthe water and the latter for the steam. In all steam-carriages, either for rail-roads or commonroads, and in almost all steam-packets there are two dis-tinct engines working two cranks on the main axles,which bear the driving-wheels in carriages, and the paddle-wheels in vessels. The chief object of this is to obviate adefect in the crank, which we will explain. Let the fol-lowing figure represent a crank with its rod in differentparts of its revolution. AVhen the crank is at B, suppos-ing it to revolve in the direction indicated by the arrow,the rod is exerting its full force to pull it round; andwhen it is at the opposite point the rod will be acting on 302 LOCOMOTIVE CARRIAGES. it in a similar manner. But it is obvious that there aretwo parrs of its revolution, where neither direct pullingnot pnshing trill tend to make i
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Keywords: ., bookcentury1800, bookdecade18, booksubjectrailroads, bookyear1839
