Guard for the nips of rolls in calenders
AssigneeKleinewefers GmbH
InventorsEgon Hutter, Gerhard Hartwich
Life of this patent
Estimating the term…
Abstract
A guard at the inlet side of the nip of two rolls in a calender or a like machine has an elongated support which is mounted in the machine frame for movement toward and away from the rolls at the inlet side of the nip. The support carries two elongated strips each of which is adjacent one of the rolls and has several sections. The support carries discrete moving mechanisms for the sections of each strip regardless of whether the sections are discrete sections or such sections form parts of a one-piece strip. This renders it possible to select and alter the width of the entire clearance between each strip and the periphery of the respective roll regardless of eventual deformation of the support and/or of the rolls.
Claims16
An apparatus for treating a running web of paper, textile material or the like, comprising first and second elongated rolls defining an elongated nip having an inlet side for admission of the running web and an outlet side;
- and a guard at the inlet side of said nip, including a support, a first substantially strip-shaped elongated blocking device mounted on said support adjacent said first roll and extending longitudinally of said nip, and a second substantially strip-shaped elongated blocking device mounted on said support adjacent said second roll and extending longitudinally of said nip, at least one of said blocking devices having a plurality of sections arranged in a row extending longitudinally of the respective roll and each being movable toward and away from the respective roll independently of at least some of said sections, said guard further comprising means for moving each of said sections relative to the respective roll independently of at least some of said sections so as to select the distance of the moved sections from the respective roll.
Dependencies are inferred from the claim text.