| 摘要 |
For a row of bowling type games, a ball return device which assures the return of the proper number of balls to each individual game regardless of where in the row the balls are rolled. A ball collection trough delivers the thrown balls to a ball lift serving a ball return rail with a gate at each individual game. Each gate is controlled by a counting circuit to allow only the correct number of balls to return, through a chute, to each individual game.
|
