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:
Mar. 27, 1979
Filed:
Feb. 24, 1978
Isao Imai, Yokohama, JP;
Hiroyuki Shiozaki, Yokosuka, JP;
Ishikawajima-Harima Jukogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A rolling mill capable of rolling a sheet metal into a final product under a low rolling pressure without the need of wrapping the sheet metal around a pair of work rolls. The pair of work rolls are rotated at different peripheral velocities, and the tensions exerted to the sheet metal entering and leaving the pair of work rolls as well as the degree of reduction are so controlled that the ratio of the peripheral velocity of one of the pair of work rolls which is rotated faster than the other work roll to the peripheral velocity of the other work roll may be substantially maintained equal to the elongation ratio of the thickness of the metal sheet entering the pair of work rolls to the thickness of the metal sheet leaving the work rolls.