Patent ID: 8079309

Claim:
A device for controlling travel of a railcar along a set of rails, the railcar comprising wheels having treads that ride on the rails, the device comprising a railcar stop that is coupled to the set of rails and that is selectively movable between a first position wherein the railcar is free to travel along the rails and a second position wherein the railcar stop is configured to engage the tread of at least one of the wheels to thereby prevent travel of the railcar in at least one direction along the rails; wherein railcar stop comprises at least one wing; wherein the railcar stop comprises a pivotable pin coupled to the wing, wherein pivoting of the pin in one direction causes the wing to move from the first position to the second position and wherein pivoting of the pin in the other direction causes the wing to pivot from the second position to the first position; and wherein the pin and wing are configured to move parallel to the rails in first and second directions.