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 302
to produce no sensible effect. Even were the forma-tion of steam to stop for a short time, the want of thisprime mover would not be felt, because the momentum ofthe fly-wheel would continue to bear it round with appa-rently undiminished velocity. This simple regulator isnot, however, found… … In the upper part of this axle is a fixed collar, to which arehung by joints the pendulums cc, of which there are twoand sometimes four. These are furnished with balls of brassor iron; which, when the engine is at rest, hang down andtouch the upright axle: but when the axle a b revolves^ o 290…
Roads · Railroads · Bridges · Vehicles
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