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:
Jan. 28, 1986
Filed:
Jun. 28, 1984
Hiroshi Koyama, Hitachi, JP;
Keiji Saito, Katsuta, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
In a rolling mill having a pair of upper and lower work rolls, defining a pressure gap therebetween through which a material is passed to be rolled, a method and apparatus for controlling the rolling mill under the different peripheral-speed rolling operation in which one of the rolls is driven at a predetermined peripheral speed by controlling the speed of a motor for driving the one roll, and the other roll is controlled to generate a torque corresponding to a difference, between a total torque required for the rolling operation and a torque generated by the one roll by controlling the torque of the motor for driving the other roll on the basis of a torque command corresponding to the torque difference.