A mechanism for rotating a cannister during the filling of the cannister with textile material from a carding machine or the like which includes a turntable rotatably mounted on a frame for supporting a cannister having a movable bottom including a plurality of flexible metal bands arranged on the frame for reciprocating movement between a retracted and an extended position with upper end portions in angularly disposed relationship, the upper ends of the bands secured together for underlying engagement with the cannister bottom and the adjacent side edges of the bands provided with releasable interlocking means engageable during the movement of the upper portions of the bands into the extended position to form a pillar together with drive means for moving the bands between the retracted and extended positions to permit downward movement of the cannister bottom during the filling of the cannister with textile material.