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:
Feb. 10, 1998
Filed:
Feb. 13, 1997
Michael Alexander Novick, New Durham, NH (US);
David Charles Burke, Portsmouth, NH (US);
Heidelberger Druckmaschinen AG, Heidelberg, DE;
Abstract
A web tension measurement and control device and method for a folding machine are provided. The tension of a web over a former board is transduced by a sensor mounted on a former board adjustment rod. The former board adjustment rod is coupled at a first end to a portion of the former board near the edge at which the web departs the former board, and at a second end to a frame. The sensor transduces a signal proportional to the strain to which it is subjected. The signal is provided to a gauge for visualization of a value of the web tension, and/or to an information processing device which generates one or more control signals functions of the measured value of the web tension. The one or more control signals may be fed back to a driven roller upstream of the former board and/or to a set of nip rollers downstream of the former board in order to actuate them so as to produce a desired web tension.