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:
Jan. 25, 1977
Filed:
Nov. 11, 1974
Applicant:
Inventor:
Roger Roch, Lausanne, CH;
Assignee:
J. Bobst & Fils S.A., Prilly, CH;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41F / ;
U.S. Cl.
CPC ...
101228 ; 73 955 ; 101232 ; 226 25 ; 318-6 ;
Abstract
In a printing machine, a device for introducing a continuous web of paper to the printing station, the device having apparatus to continually measure the coefficient of elasticity of the web and apparatus for developing a tension on the web as a function of the measured coefficient of elasticity. The web is fed against two tension measuring devices in conjunction with two traction rollers having slightly different radii from which the coefficient of elasticity can be calculated electronically.