feeding of web 13 to turret winder 1 wrinkles are removed from web 13 by bowed roll 96 as in conventional practice bowed roll 96 is curved slightly along its longitudinal axis so that the center of this roll is not concentric with its ends in conventional practice bowed roll 96 is driven by web 13 as it passes over bowed roll 96 this results in tension variations in web 13 especially when there is a change in the velocity of web 13 as it responds to change in the speed of chuck drive motor 23a or 23b due to the fact that bowed roll 96 must be sped up or slowed down by forces exerted through web 13 in the present invention bowed roll 96 is driven through an adjustable bowed roll clutch 97 to which it is connected b bowed roll clutch belt 98 the inclusion of bowed roll clutch 97 permits bowed roll 96 to be adjusted to rotate at a speed that matches the speed of web 13 and also follows variations in the speed of chuck drive motor 23a or 23b as the speed of feed rolls 95 and 95 39 respond to core chuck speed control 100 this ability to drive bowed roll 96 substantially improves the.