| 摘要 |
772,332. Feeding webs. GARTEMANN, G. Nov. 15, 1955 [Nov. 20, 1954], No. 32571/55. Class 100(1) A machine for manufacturing multiplewall paper tubs for paper bags wherein one feeding device and one perforating device is arranged for each width of paper is characterized in that the feeding devices c, c1, c2, c3, c4, c5 and the perforating devices d, d1, d2, d3, d4, d5 are aranged vertically one above'the other and all widths of paper b, b1, b2, b3, b4, b5, are so guided by adjustable guide rollers g, from the perforating devices until they unite to form a tube, that all the widths of paper have the same length of travel. The individual bags are formed by tearing the tube at the perforations. |
