D21GCALENDERSACCESSORIES FOR PAPER-MAKING MACHINES winders or rewinders for finished products, means for adjustment of wrinkles or lateral extensions B65HIn this subclass non-limiting references (in the sense of paragraph 39 of the Guide to the IPC) may still be displayed in the scheme. D21G1/00 D21G1/00Calenders if restricted to the treatment of particular materials see the relevant class, e.g. B29C43/24, D06Smoothing apparatus D21G1/0006Driving arrangements D21G1/0013for controlled deflection rolls D21G1/002Opening or closing mechanisms; Regulating the pressure D21G1/0026Arrangements for maintaining uniform nip conditions D21G1/0033by offsetting the roll axes horizontally D21G1/004Regulating the pressure D21G1/0046depending on the measured properties of the calendered web D21G1/0053using magnetic forces D21G1/006with extended nips D21G1/0066using a special calendering belt D21G1/0073Accessories for calenders D21G1/008Vibration-preventing or -eliminating devices D21G1/0086Web feeding or guiding devices D21G1/0093Web conditioning devices D21G1/02RollsTheir bearings in general F16C13/00 D21G1/0206Controlled deflection rolls D21G1/0213with deflection compensation means acting between the roller shell and its supporting member D21G1/022the means using fluid pressure D21G1/0226Bearings D21G1/0233Soft rolls D21G1/024formed from a plurality of compacted disc elements or from a spirally-wound band D21G1/0246Hard rolls D21G1/0253Heating or cooling the rolls; Regulating the temperature D21G1/026using the hydraulic fluid in controlled deflection rolls D21G1/0266using a heat-transfer fluid D21G1/026 takes precedence D21G1/0273on the exterior surface of the rolls D21G1/028using electrical means D21G1/0286Regulating the axial or circumferential temperature profile of the roll D21G1/0293Provisions or constructions to facilitate the removal of the rolls D21G3/00Doctors D21G3/005Doctor knifes D21G3/02for calenders D21G3/04for drying cylinders D21G5/00Safety devices D21G5/005for calenders D21G7/00Damping devices D21G9/00Other accessories for paper-making machines D21G9/0009Paper-making control systems D21G9/0018controlling the stock preparation D21G9/0027controlling the forming section D21G9/0036controlling the press or drying section D21G9/0045controlling the calendering or finishing D21G9/0054details of algorithms or programs D21G9/0063Devices for threading a web tail through a paper-making machine D21G9/0072using at least one rope D21G9/0081Apparatus for removing samples from travelling web material D21G9/009Apparatus for glaze-coating paper webs