3-in-Line Messenger Balls

Three Messenger Balls arranged in a line — a Captive Ball assembly in which the ball-in-play strikes the first captive ball, which relays its momentum through a second to reach a third. IPDB catalogs a single machine with this configuration: Combination Rotation by Gottlieb. The three-ball chain extended the Newton’s cradle principle, demanding an even firmer shot than the 2-in-Line Messenger Balls variant to transmit enough force through two intermediaries to register the final scoring switch.