Patent · US Expired

Steel pipe rolling mill

US4449386A · kind A · utility

2Cited by
3References
6Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 1, 1982
Grant dateMay 22, 1984
Priority date
Expiry dateJul 1, 2002

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB21B31/08
  • WIPO fieldMachine tools
  • WIPO sectorMechanical engineering

Abstract

In an apparatus for changing the rolling mill rolls and/or disk shoes of a steel pipe rolling mill, the top and bottom rolls vertically movably mounted in the housing are individually placed on a supporting bed positioned below the bottom rolling roll and moved in and out of the mill by way of rails laid in the lower part of the housing, and each of the disk shoes is mounted on a supporting arm which is movable vertically and rotatable thereby making it possible to change the disk shoes even during the operation.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.