educational game selection trajectories travelled from balls

摘要

A board (20) of an educational toy is inclined to the horizontal. The highest level of the board has a space (25) containing a number of balls, with a device to release one at a time so that they roll under gravity through a series of passages. The passages have a number of bifurcations with a mechanical switch each to control the passage of the ball into one of the two branches. The switches are controlled by a binary code of 0 for one path and 1 for the other path. By setting the control device to the binary equivalent of the number of the required outlet, i.e. 0 to 15, the ball can be made to to that outlet.