| 摘要 |
An assembly for identifying and separating a cue ball, on a single file ball return run of a billiard table, from a group of object balls with the cue ball being substantially identical in weight and size to the object balls. The assembly includes a cue ball having a metallic core encapsulated by a phenolic resin shell. An electrically produced field (static or electromagnetic) is located in the path of all balls moving along the single file return run. Sensing apparatus is connected to the field-producing element to detect when the field is distorted or otherwise interrupted by passage of the metallic core ball. A signal is produced in the circuitry in response to interruption of the field by the metal core ball. The produced signal is utilized to operate a relay which in turn, completes a circuit to a kicker solenoid. The solenoid is positioned along the return run opposite the opening of a separate cue ball return run. The kicker solenoid operates to move its plunger against the cue ball and push it through a gate onto the cue ball return run.
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