Remote uncoupling mechanism

A model railroad remote uncoupler mechanism connected to a signal-receiving mechanism and a self-centering coupler, wherein the coupler is mounted, for swinging movement within a pre-defined arc in a substantially horizontal plane, on a unit of model railroad rolling stock, and is shiftable between a coupled condition, wherein the coupler engages a coupler on another unit of rolling stock, and an uncoupled condition, which rolls on spaced-apart rails, wherein the coupler includes a coupler shank, a coupler head having a head dog formed thereon, a coupler knuckle mounted on the coupler head for pivoting movement relative thereto between an open position and a closed position, and having a knuckle dog formed thereon;

• and a biasing mechanism extending between the head dog and the knuckle dog to bias the knuckle to its closed position, comprising:
• an electromotive actuator which is activated by the signal-receiving mechanism, including a prime mover effectuating the uncoupling action, an elongate pivot arm connected to said prime mover wherein said arm has a pivot point near the center thereof, and wherein said prime mover is operable to shift said pivot arm to a first, uncoupling position, and which further includes a spring biasing mechanism for biasing said pivot arm to a second, coupling position;
• a power supply for said electromotive actuator;
• and
• a connector extending between said pivot arm and the coupler for shifting the knuckle between its closed position and its open position.