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:
Dec. 04, 1984
Filed:
Oct. 15, 1982
Stephen Martin, Sheffield, GB;
Roy Clegg, Rotherham, GB;
Davy McKee (Sheffield) Limited, Sheffield, GB;
Abstract
A rolling mill having hydraulic cylinders in each housing to adjust the roll gap is provided with a control system whereby a workpiece is kept on a central path through the mill and is prevented from wandering from this path towards one of the mill housings. The system includes a pair of circuits and a connector between the circuits for averaging the load on each housing and controlling the roll gap in accordance with a certain mill stretch factor. The difference between the loads is also obtained and a signal, in accordance with a different stretch factor, is applied to the housing with the heaviest load and a signal of the same magnitude, but opposite polarity, is applied to the other housing.