Patent GB-666225-A (GB)
Title: Improvements in or relating to machines for the manufacture of padded paper
IPC: B31F1/28
Filed: 1948-08-18
Abstract: 666,225. Laminating-machines for paper padding. FIRMA POLLUX TRUST VADUZ. Aug. 18, 1948 [July 28, 1948], No. 21832/48. Classes 96 and 140. In the continuous operation of an installation for the production of padded paper, Figs. 16-18, consisting of superimposed layers of smooth and embossed paper alternately arranged and pasted to each other, paper webs 5 and 7 run off rollers 2 and 4, are moistened by devices 8 and 10 by means of steam and drawn by rollers 12, 11 through embossing mechanisms 14, 13; a web 6 is run off a reel 3 by drawing rollers 15 through a gumming mechanism 16 wherein both sides are provided with adhesive in a predetermined pattern by relief rollers; the three webs are united in a regulating device 17 which positions and tensions the combined web; smooth paper webs 21, 22 running off rolls 23, 24 are fed through gumming mechanism 16<SP>2</SP> and 161 on to opposite sides of the combined web and the five layers pass through a stamping machine 20 wherein they are united under heat and pressure applied over selected areas forming the pattern, and the emerging single web 27 is cut into finished sheets 27<SP>1</SP> by longitudinal cutters 25 and a transverse cutter 26, the sheets being conducted over a conveyer belt 28 to a packing table 29. The stamping- machine has a pair of endless hands, running in unison through a presser device taking the padded paper between them, and provided with stamping elements having a line or spot pattern formed in relief. One modification shown in Fig. 2 comprises two pairs of driven rollers 30, 301 and 31, 31<SP>1</SP> over which bands or chains 32, 33 run, the chain links constituting the stamping elements consisting of hingedly-connected plates forming a flat surface and having patternforming projections and recesses 37 into which teeth 38 on the rollers engage to impel the chains which are maintained in register by the engagement of dowels 52 with corresponding slots in the chain 33. The presser device comprises ball-bearing rollers 42 and 44, the latter supported in brackets, as at 47, fastened to a, vertically movable support 46 which is pressed downwardly by adjustably tensioned springs 49. A heating device is provided and may comprise hollow bearings through which steam is supplied, or the links may be provided with electric heating elements connected to the supply through bus-bar rails by sliding contacts, pairs of which are so spaced that at least one pair is always in contact with the rails, Figs. 13-15 (not shown). Another modification of stamping press shown in Fig. 9 comprises endless bands 63, 64, one running over ball-bearing rollers 85 carried on ribs 86, the other running over rollers 84 carried on a frame 77 which is pressed upwardly under the .action of tensionsprings 81 and having its lower part pressed downwardly by a vertically-adjustable plate 87 on the underside of which rollers 88 are yieldingly mounted. The bands comprise stamping-plates attached to thin steel belts provided with apertures which register with recesses formed in the plates and into which teeth 100<SP>1</SP> on the driven rollers 65, 66 and the rollers 65<SP>1</SP>, 66 engage. Electric heating means, also as represented in Figs. 13-15 (not shown), comprise sliding contacts 104, 104<SP>1</SP> and busbars 106.