The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 18, 1999
Filed:
Jul. 10, 1997
Georg Engel, Dusseldorf, DE;
Paul Josef Mauk, Dusseldorf, DE;
Hans-Jurgen Nowak, Kamp-Lintfort, DE;
Ulrich Svejkovsky, Wuppertal, DE;
SMS Schloemann-Siemag Aktiengesellschaft, Dusseldorf, DE;
Abstract
A method of rolling finished sections from a preliminary section by initially carrying out five or more passes and reversing passes between a universal stand and a horizontal stand, wherein profiled horizontal rolls of the universal stand form in the section two indentations located opposite of each other and offset relative to a longitudinal center of the section. Subsequently, head and flange projections of an emerging rail section are preshaped and the indentations are laterally reduced by one of alternative grooves of a horizontal stand of a preliminary rolling group. The emerging rail section is rolled in a reversing operation after three or more passes in the universal stand and in two alternative grooves of an intermediate upsetting stand. The section is finish-rolled into a rail section in an additional pass through the universal stand.