Patent for a new and improved coupling for railroad cars. This design "has relation to that class of car-couplings in which the open ends of a coupling bar or link are engaged by hooks in the draw-heads; and it consists in the improved construction and combination of parts of such a coupling, in which the hooks are projecting from the under sides of arms pivoted upon the draw-heads and dropping down by their gravity, and in which the said hooks project into registering recesses in the upper side of the draw-head" (lines 23-33).