Patent ID: 7249472

Claim:
Apparatus for treating, where applicable, strip-form textile material, non-woven fabric, woven fabric or paper in a continuous stream using a gaseous agent, which is circulated in the apparatus, having a permeable drum as the conveying member, which drum has base portions on its end face and is subject to an induced draught, wherein a metal drum-jacket, which is securedly connected to the base portions, extends between the base portions of the drum, characterised in that the metal drum-jacket is connected substantially over its entire circumference to the associated base portion in a uniformly secured but detachable manner by a circular clamping connection, the circular clamping connection comprising, on the side facing the centre of the drum, an annular groove formed in the base portion at the radial location of the metal drum-jacket, which is to be secured there, in which annular groove the metal drum-jacket is securedly clamped around the drum, the annular groove forming two clamping jaws, at least one of the clamping jaws being tapered in the direction of the centre of the drum, and a ring-shaped clamping member for clamping the metal drum-jacket between the ring-shaped clamping member and one of the clamping jaws, wherein a conically aligned side wall of the ring-shaped clamping member is adapted to the inclination of the at least one tapered clamping jaw of the clamping groove.