490. Ordinary steering apparatus. Plan view. On the shaft of the hand-wheel there is a barrel on which is wound a rope which passes round the guide-pulleys and has its opposite ends attached to the “tiller” or lever on the top of the rudder; by turning the wheel, one end of the rope is wound on and the other let off, and the tiller is moved in one or the other direction, according to the direction in which the wheel is turned.