Abstract: A chain making plant for the manufacture of two chains at a time by means of a series of operating stations arranged along a substantially straight course. Two conveyor units are provided, each of which successively presents a depending portion of one chain to the operating stations. Each of the conveyor units comprises a carriage running on a track extending along the course and a transverse chain conveyor supported by said carriage, said transverse chain conveyor being arranged to feed the chain outwards step by step and being capable of being shifted transversely as a unit with respect to the carriage.