Abstract: This invention improves upon my Pat. Nos. 3,483,829 and 3,484,002 and on my pending patent application titled CONTAINER OVERHEAD TRANSFER AND STORAGE SYSTEM Ser. No. 269,239, filed July 5, 1972, wherein the improvement comprises a cam track dip and container carrier for operating thereon to vertically transfer loads to and from a moving train. The cam dip serves to lower and raise a hook or load frame on the carrier to transfer one or more containers or cages to and from a train running parallel below. The hook or load frame is secured on double parallelogram linkage to the frame of the carrier and has outboard wheels for running on the cam track for parallel level movement of the frame down and up along the transfer dip.