An apparatus comprising: a frame defining a machine direction; a first transport member operatively engaged with the frame; a second transport member operatively engaged with the frame; a first carriage drive mechanism comprising a first carriage drive belt, a first drive shaft, and a first sprocket drive belt operatively engaged with the first drive shaft, wherein the first carriage drive belt is operatively engaged with the first carriage drive mechanism and operatively connected with the first transport member such that the first carriage drive belt moves the first transport member in the machine direction about an endless loop, wherein the first sprocket drive belt engages the first drive mechanism in a position of the first drive mechanism not connected with the first carriage drive belt; and a second carriage drive mechanism comprising a second carriage drive belt, a second drive shaft, and a second sprocket drive belt operatively engaged with the second drive shaft, wherein the second carriage drive belt is operatively engaged with the second carriage drive mechanism and operatively connected with the second transport member such that the second carriage drive belt moves the second transport member in the machine direction about an endless loop, wherein the second sprocket drive belt engages the second drive mechanism in a position of the second drive mechanism not connected with the second carriage drive belt, characterized in that each carriage drive mechanism comprises a carriage drive sprocket and each sprocket drive belt is operably engaged with said carriage drive sprockets at a position on the carriage drive sprocket that is not engaged with the carriage drive belt. a frame defining a machine direction; a first transport member operatively engaged with the frame; a second transport member operatively engaged with the frame; a first carriage drive mechanism comprising a first carriage drive belt, a first drive shaft, and a first sprocket drive belt operatively engaged with the first drive shaft, wherein the first carriage drive belt is operatively engaged with the first carriage drive mechanism and operatively connected with the first transport member such that the first carriage drive belt moves the first transport member in the machine direction about an endless loop, wherein the first sprocket drive belt engages the first drive mechanism in a position of the first drive mechanism not connected with the first carriage drive belt; and a second carriage drive mechanism comprising a second carriage drive belt, a second drive shaft, and a second sprocket drive belt operatively engaged with the second drive shaft, wherein the second carriage drive belt is operatively engaged with the second carriage drive mechanism and operatively connected with the second transport member such that the second carriage drive belt moves the second transport member in the machine direction about an endless loop, wherein the second sprocket drive belt engages the second drive mechanism in a position of the second drive mechanism not connected with the second carriage drive belt, characterized in that each carriage drive mechanism comprises a carriage drive sprocket and each sprocket drive belt is operably engaged with said carriage drive sprockets at a position on the carriage drive sprocket that is not engaged with the carriage drive belt.