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. 28, 1991
Filed:
Nov. 02, 1989
Applicant:
Inventor:
Kenneth T Lawson, Yorkshire, GB;
Assignee:
Dave McKee (Sheffield) Limited, Yorkshire, GB;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B21B / ;
U.S. Cl.
CPC ...
72 12 ; 72 14 ; 72 17 ; 72205 ;
Abstract
When hot rolling metal strip, it is usual to apply tension to the strip and then a contact-type strip tension detector is employed to detect variations in tension across the width of the strip. The signals are used to adjust the rolling mill in the sense to reduce shape variations across the width substantially to zero. Until tension has been applied to the leading end of the strip, the contact-type detector cannot be used. Consequently, the strip may be of bad shape. The invention resides in employing a non-contact type strip shape detector to detect variation in shape and adjust the rolling mill until tension has been applied to the strip.