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 307
e horizontalpump p, which is worked by having its rod attached tothe triangle at k. At n are the handles of two levers, by which thecourse of the steam may be so altered as to reverse theaction of the engines, and consequently of the wheels, 294 LOCOMOTIVE STEAM-ENGINE. so as to move the engine… … the valve-box, consisting of a cylindrical tube, ratherlonger than the cylinder of the engine, and having withinit a smaller tube c, which slides up and down by a rodpassing out at the top; near each end of this tube is aprojecting rim, or collar, which fits air-tight in the largertube. The passage…
Roads · Railroads · Bridges · Vehicles
Internet Archive · Public Domain Mark 1.0. Free to use for anything.
![An illustration from One thousand processes in manufactures and experiments in chemistry / [Colin Mackenzie]. (1825)](https://img.insideoutlibrary.com/img/200/wellcome-wellcome_b29307867-176-1.webp)
