Patent ID: 7926688

Claim:
A web processing assembly for a web processing module, the assembly comprising: first, second and third fixed spaced apart pairs of nip rollers moving the web at a first, second and third speeds, the first and third speeds being constant and similar, the second speed being variable with a mean speed similar to the first and third speeds; a first dancer mechanism including a first arm pivotally mounted at a first end thereof and a first bracket rotatably fixed to the first end of the first arm, the first arm including a first idler roller mounted at a second end of the first arm, the first idler roller engaging the web between the first and second pair of rollers; a second dancer mechanism including a second arm pivotally mounted at a first end thereof and a second bracket rotatably fixed to the first end of the second arm, the second arm including a second idler roller mounted at a second end of the second arm, the second idler roller engaging the web between the second and third pair of rollers; and an adjustment mechanism engaged with and supported only by the first and second brackets, respectively, the adjustment mechanism yieldably biasing the first and second brackets apart to apply tension to the web through the first and second arms and the first and second idler rollers, the first and second idler rollers moving with the first and second arms by action of the adjustment mechanism, such that the first and second idler rollers move along a restrained path perpendicular to an axis of the respective one of the first and second idler rollers to compensate for a difference between the variable second speed and the respective one of the constant first and third speeds.