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:
Mar. 29, 1977
Filed:
Nov. 06, 1974
Applicant:
Inventors:
Hans Gref, Cologne, DT;
Wolfgang Schweicher, Leverkusen, DT;
Hans Frenken, Leverkusen, DT;
Heinz Bussmann, Opladen, DT;
Karl Voss, Leverkusen, DT;
Helmut Schaffer, Opladen, DT;
Willi Junkersdorf, Monheim, DT;
Assignee:
AGFA-Gevaert, A.G., Leverkusen, DT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65H / ;
U.S. Cl.
CPC ...
226113 ; 226195 ;
Abstract
The tension level of moving webs of material is adjusted or measured and regulated by means of a guide roller mounted on parallel swing arms which include an angle 0 <.alpha. <90.degree. with the horizontal, .alpha. lying in an angular range of .+-. 15.degree. around the value .alpha..sub.M at which the traction applied to the web by the guide roller is at a minimum.