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:
Sep. 12, 2000
Filed:
Dec. 23, 1996
Toshiyuki Kajiwara, Tokyo, JP;
Takashi Norikura, Hitachi, JP;
Kenichi Koyama, Takahagi, JP;
Hidetoshi Nishi, Hitachi, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A cluster type multi-roll rolling mill with 20 rolls provided in a mono-block housing has 4 backing bearing shafts for supporting rolls on each of two, upper and lower, sides of a travelling path of a rolling material, and is characterized in that the 4 backing bearing shafts on at least one side of said two, upper and lower sides consist of two outside backing bearing shafts and two central backing bearing shafts, the two outside backing bearing shafts each are fixed to the housing through a saddle, the two central backing bearing shafts between the two outside backing bearing shafts are movable in a vertical direction and a drive mechanism is provided for moving vertically the two central backing bearing shafts.