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. 13, 1984
Filed:
Jun. 10, 1981
Teruo Sekiya, Takahagi, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A roll changing device for rolling mills, in which the roll are changed through roll exchange between the work roll changing rails and intermediate roll changing rails which are mounted in a housing, and delivery rails placed in front of the rolling mill. The improvement comprises a vertically movable floor device carrying the delivery rails. The vertically movable floor device is adapted to move vertically to bring the delivery roll into alignment with the work roll changing rails and the intermediate roll changing rails to permit an easy and prompt roll change without any restriction in the space, even when the work rolls and the intermediate rolls are mounted at large depths from the floor level.