US Patent 7374516 Weight lifting power cage with slave rack

A weight lifting power cage for use by a weight lifter includes a frame assembly including a pair of side frames and a rear lateral frame interconnecting the pair of side frames. A carriage is carried by the side frames and is movable simultaneously vertically and front to back. The carriage retains a weight bar mount for retaining a weight bar spanning between each side frame. The weight bar is movable by the carriage vertically and front to back. The movable carriage also carries a pair of vertical weight rack bars. An engagement mechanism enables the weight lifter to rack the weight bar from a weight lifting position without stepping forward or backward.