Patent for a new and improved coupling for railroad cars. This design consists in "[t]he combination of the draw-head provided with a flange upon one of its sides, ways for securing said draw-head in place and allowing it a longitudinal movement, an abutment which is secured to said ways upon one side, a hook which is pivoted in the draw-head on the side opposite to the flange, which hook is provided with a weight for keeping it normally closed, and which has a notch formed upon its pivotal end, and a latch which is pivoted to one side of the draw-head" (lines 64-74).