Calenders Smoothing apparatus

DTEXTILES PAPER D21Papermaking D21GCALENDERS ACCESSORIES FOR PAPER-MAKING MACHINES

D21G1/00Calenders Smoothing 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 D21G1/02Rolls Their bearings 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 D21G1/0273on 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