Patent · US Expired

Unit for scoring webs of paper in the lengthways direction

US4416652A · kind A · utility

3Cited by

3References

5Claims

0Family size

Assignee

Albert-Frankenthal Aktiengesellschaft · DE

Inventors

Rudolf Fischer · Erding, DE
Rudolf Stab · Bischofswerda, DE

Key dates

Filing date	Jul 20, 1981
Grant date	Nov 22, 1983
Priority date	—
Expiry date	Jul 20, 2001

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T83/0393
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

For the purpose of helping in the making of a second lengthways fold in a web of paper in a folder having a folder blade for producing this fold, the paper is firstly scored at the desired fold position in the long direction by a sharp-edged wheel pushing the paper against a turning back-up part, which is let into the face of one of the nipper or guiding rolls of the folder. The wheel with the sharp edge is placed on the other, opposite roll between separate roll parts or wheels thereon gripping the web against the other roll.

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