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.

Date of Patent:
Nov. 10, 1981

Filed:

Mar. 10, 1980
Applicant:
Inventors:

Hiromi Matsumoto, Kitakyushu, JP;

Toshio Kikuma, Fukuoka, JP;

Koe Nakajima, Nakama, JP;

Akira Ohnuki, Kutakyushu, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21B / ; B21B / ;
U.S. Cl.
CPC ...
72241 ; 72247 ;
Abstract

A rolling mill includes at least one roll carrying a sleeve loosely on the barrel, and a sleeve-supporting-and-guiding unit the restricting point of which, i.e. the point at which force for axially shifting or restricting the shifting of the sleeve is applied on the sleeve, is located somewhere along the second-half semi-circular portion of the sleeve as viewed in the rotational direction of a complete turn of the sleeve ending at the loading point where the sleeve and the associated roll are subjected to loading pressure. The mill has a powerful crown-controlling capacity for workpieces varying widths, and the sleeve-supporting-and-guiding unit is sufficiently durable to withstand high speed rolling for mass production.


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