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:
Nov. 16, 1976
Filed:
Dec. 10, 1974
Applicant:
Inventor:
Heinz Krakow, Hamburg, DT;
Assignee:
Blohm & Voss AG, Hamburg-Steinwerder, DT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21B / ; B21B / ;
U.S. Cl.
CPC ...
72 12 ; 72 49 ; 72135 ; 228145 ;
Abstract
In forming a metal plate or the like into a helical seam pipe, the plate is deformed by bending rolls each made up of individual forming rolls. The forming rolls are exposed to shearing forces if the plate varies its direction of travel toward the forming rolls. To prevent the continued presence of shearing forces, the forming rolls are pivotally mounted on a support which is displaceably guided within a holder and an adjusting mechanism is connected to the support and the forming rolls to adjust the setting angle of the forming rolls in accordance with the direction of travel of the plate toward the forming rolls.