Patent ID: 6298705
Filing Date: 2001-10-09
Classification: B21B

Abstract:
Apparatus for hot rolling a round bar into a concrete reinforcing element, said apparatus comprising: first and second pairs of driven work rolls arranged in succession along a rolling line, the work rolls of each of said pairs having cylindrical rolling surfaces with notches therein extending transversely and obliquely with respect to the rolling line, the roll axes of said second pair being offset by 90.degree. with respect to the roll axes of said first pair, said first pair of work rolls being arranged to configure said round bar into an intermediate process section having flat parallel first sides with first ribs protruding therefrom, and said second pair of work rolls being arranged to reconfigure said process section into a finished concrete reinforcing element having a core with flat parallel second sides which are perpendicular to said first parallel sides and which have second ribs protruding therefrom.