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:
Aug. 27, 1985
Filed:
Oct. 25, 1982
Erkki Koski, Jyvaskyla, FI;
Valmet Oy, , FI;
Abstract
A supporting beam for a paper machine foil or the like is constituted by a horizontal box-type beam, the height of which is in the range of about 1.3 to 2.5 times the breadth of the beam and the side walls of which extend substantially perpendicularly to the run of the paper machine wire which passes over the foil supported by the beam. According to the invention, to reduce the vibrations of the supporting beam, stiffener members are disposed in the rearward upper and forward lower quadrants of the interior of the beam extending parallel to the longitudinal axis thereof. The stiffener members function to incline the principal axes of inertia of the beam at a small positive angle to the vertical and horizontal planes passing through the center of gravity of the beam relative to the direction of run of the paper machine wire. The stiffener members are situated on the inwardly facing surfaces of the vertical side walls of the beam and preferably extend substantially over the entire length of the beam. The stiffener member situated in the rearward upper quadrant is located proximate to the top side wall of the beam and the stiffener member situated in the forward lower quadrant is located close to the lower corner of the beam.