Patent · US Expired

Device for changing mandrels in tube rolling mills

US3955392A · kind A · utility

3Cited by

5References

8Claims

0Family size

Assignee

Vallcurec (Usines a Tubes de Lorraine-Escaut et Vallourec Reunies) · FR

Inventor

Maurice Prevot · Le Touquet-Paris-Plage, FR

Key dates

Filing date	Jan 6, 1975
Grant date	May 11, 1976
Priority date	—
Expiry date	Jan 6, 1995

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB21B25/06
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

Tube rolling mill of the STIEFEL type comprises a feed trough and a member etween the trough and mill rolls over which the tube and plug pass. This member is movable between a first position in which it supports the tube and plug in alignment with the feed trough and a second in which it directs the plug into a discharge chute.

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