Patent for a new and improved coupling for railroad cars. This design consists in "[t]he combination . . . of the laterally and vertically movable draw-head having the hook at its outer end, the keeper depending from the lower side of the car, and in which the draw-head is confined, the spring connected to one side of the draw-head and bearing thereon, and the arm pivoted in a slot in the draw-head, and having the head projecting in rear of the lip or shoulder of the hook, and the lever fulcrumed to the end of the car and connected to the car" (lines 87-97).