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:
Nov. 30, 1976
Filed:
Feb. 24, 1975
Karl Wolf, Heidenheim-Schnaitheim, DT;
Dieter Egelhof, Heidenheim (Brenz), DT;
J. M. Voith GmbH, Heidenheim (Brenz), DT;
Abstract
A headbox for a papermaking machine or the like in which material, such as supension, flows from the headbox between upper and lower lips and through a discharge slot defined by the lips to a wire or a like receiver. The upper lip is reinforced by a beam extending along the upper lip on top of the lip while a detector is provided for detecting deflection of the upper lip due to the forces exerted thereon by material flowing between the lips. The detector is arranged to emit signals in conformity with deflection of the upper lip and correcting influences can be initiated in conformity with the emitted signals to compensate for the aforementioned deflection. In particular, the detector includes an element stationary with the upper lip in about the center of the lateral length of the lip and another element which is stationarily mounted and which elements cooperate upon relative vertical movement therebetween to bring about the emitting of signals which represent a measure of the amount of deflection of the upper lip.