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 .. (1839)
London : J.W. Parker · leaf 297
In each figure let a represent the induction-pipe, orthat by which the steam enters from the boiler; b theeduction-pipe, or that which conducts to the chimney; andc and d the passages to the bottom and top of the cylinderrespectively. During the upward stroke of the piston,the cock, which is a…
Roads · Railroads · Bridges · Vehicles
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