arted to l ; the radial arms are connected atthe other end with a centre, round which they are capable of revolving.Now, since the points abc, &c, which are the pivots on which the paddle-boards turn, are moved in the circumference of a circle, of which the centreis o, they are always at the… … round which it revolves lies precisely between it and the centre o, itsdistance from the former centre is less than in any other position. As itdeparts from that point, its distance from that centre gradually increasesuntil it arrives at the opposite point of it* revolution, where the centre ois…
Steam-engines · Steam-navigation · Locomotives
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