exiting from the apparatus this fiber interlocking is further increased as belts 3 and 4 pass around the upper periphery of roller 8 and between oscillating compression roller 9 which is driven by bell crank drive 17 oscillating roller 9 which is parallel to and adjacent roller 8 oscillates back and forth rapidly as belts 3 and 4 pass their point resulting in a thorough massaging action on the tufts and fibers between belts 3 and 4 belts 3 and 4 then pass between driving roller 8 and a second compression roller 11 where the belts separate and discharge the fiber and tufts composition 1 which is now in the form of a lap 21 ready for further processing belt 3 then follows the under periphery of roller 8 and then around the under periphery of roller 6 and back to the starting point at roller 5 belt 4 follows the under periphery of roller 11 and then to tensioning roller 12 and around adjustable roller 10 lap 21 is weight changeable by moving adjustable roller 5 and 10 toward and away from center of chute the tension in belt 4 is maintained by tension roller 12 wall 2a and 2c of.