Abstract: Apparatus for rapidly cooling elongated products during the movement thereof in longitudinal direction mainly comprises an elongated tube, a cooling water feed head communicating with one open end of the tube and a separator communicating with the other open end of the tube. The cooling water feed head and the separator are respectively provided in walls facing the opposite ends of the tube with openings aligned with the tube axis through which the product passes surrounded by a cooling water jet during its passage through the tube into the separator. A first device is located in the separator for reducing the diameter of the cooling water jet, and a second device, preferably in form of a secondary water jet, extends transverse to the axis of the tube spaced from the first device, is provided in the separator for shearing the water jet of reduced diameter surrounding the product.

Abstract: An apparatus for cooling an elongated product during its movement through the apparatus comprises an elongated tube having a cooling fluid inlet at one end and a cooling fluid outlet at the other end so that the cooling fluid will flow from the one to the other end through the tube. The product to be cooled passes through the tube either in the same or in a direction opposite to the direction of flow of cooling fluid through the tube. At least one centralizing element is provided in the tube spaced from the opposite ends of the latter and having a central passage coaxial with the tube and a diameter smaller than that of the tube for the passage of the product therethrough, and a plurality of channels uniformly distributed about the central passage to facilitate flow of cooling water from one to the other end of the tube.