| 摘要 |
RICHARD J. MOLL ROLLER FOR GLUE APPLYING FOLDING MACHINES A roller for glue applying folding machines is disclosed which grips paper sheets to be advanced for folding, and which sheets have had one or more lines of glue applied thereto, which roller includes a plurality of spaceable segmented roller elements, detachably secured to a metal shaft, which elements have a resilient outer layer bonded thereto with an end to end helical groove, providing for advancing the paper sheets, and which grooves expel debris picked up from the surfaces of the advanced paper sheets. |
