Patent · US Expired

Cage-roll unit for metal pipe forming

US4299108A · kind A · utility

20Cited by
6References
6Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 6, 1979
Grant dateNov 10, 1981
Priority date
Expiry dateSep 6, 1999

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB21C37/08
  • WIPO fieldMachine tools
  • WIPO sectorMechanical engineering

Abstract

A metal pipe forming mill progressively forms a flat metal sheet into a circular form along the mill axis by forming rolls including pairs of cage rolls. A cage-roll unit in this type of mill has a pair of movable bases disposed on both sides of the mill axis, with the space between the two movable bases being freely adjustable, and a pair of stands mounted on the movable bases, one on each. The stands rotatably support, on their surfaces facing the mill axis, two or more pairs of cage rolls, one pair following another along the mill line.

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