Patent GB-445600-A (GB)
Title: Improvements in and relating to the manufacture of packets of cigarette papers
IPC: A24F17/00
Filed: 1935-01-29
Abstract: 445,600. Wrapping-machines. STRAUS, H. H., 345, West 40th Street, New York, U.S.A. Jan. 29, 1935, No. 2951. [Class 94 (i)] The machine makes openended packets of cigarette papers comprising stacks of plain or gummed papers enclosed in a thick paper cover having overlapping ends. A continuous strip is formed, which is severed at intervals to form the packets. A number of bars 17, Fig. 1, are pivoted at 16 and each carries a roller 19 on a stub axle 18. The bars are normally locked in the position shown in Fig. 1, by a bar 25, inserted into a groove 24. Each roller 19 carries a roll 26 of cigarette paper, which may have a line of adhesive extending along one edge. Each strip passes beneath an idler roll 28 and over a driving roll 29 co-operating with an adjustable pressure roll 62. At this point the webs are in parallel side-by-side relationship, and in order to provide a large bight to facilitate the operation of placing them in superposed relationship, a well 67 is provided, and each individual web is passed through one of a series of wire rings 68 and upwards between spaced bars 70. From these the webs pass to a plate 134 having a compound oscillatory movement and being formed with a series of slots 135, Fig. 9, through each of which a web passes. The slots are rather longer than is sufficient to accommodate the breadth of the rolls 26, which are thus arranged roughly in superposed spaced relation. In order to align the strips properly before arrival a spaced guide plates at the top of the machine a series of arms 94, 95, 104, 105, 113, 114, Fig. 7, are provided. The arms 94, 95 are horizontally reciprocated, to engage the edges of the webs from opposite sides, by means of a connecting rod 99 on a crank-pin 100, the other end of which is pivoted to a plate 93 carrying the arm 94, and connected to the plate 92 by a plate 97. The plates 92, 93 slide on a shaft 91. The arms 104, 105 are similarly actuated and are so arranged that the webs are engaged on opposite sides simultaneously by the arms 95, 104, and 94, 105 respectively. The arms 113, 114 are arranged to approach each other and recede simultaneously to effect the final adjustment. All the adjusting mechanism, including the plate 134 is operated from a shaft 75 by chain- and-sprocket mechanism connected to a motor 71 separate from the main drive. The material to form the covers or wrappers passes from a roll 145 to a driving roller 146 and thence downwardly in a bight in the wall 67 and to rollers 156, 157, and then to the right, Fig. 1, beneath the superposed strips 26 of cigarette paper. Guides 159, rollers 160, 251, and a guide 161 turn the edges of the cover strip into overlapping relation on the top of the cigarette papers. The feed is effected by means of spaced transverse bars 188 on chains 187, Fig. 11, cooperating with bars 204 on chains 203. The chains 203 pass round sprockets 201, 202 on axes 199, 200 resiliently and adjustably mounted in vertical guideways 189, 190. The bars engage the lower and upper surfaces of the strip and feed it towards a cutting device 232, Figs. 11 and 12, by means of which the strip is severed into individual packets. The blade 232 co-operates with an anvil 233, and, in order to ensure the correct position of each cut with relation to the printed matter on the covers, a guide plate 234 with a sighting aperture is provided. If the strip gets out of register the entire assembly of sprocket chains 187, 203 can be longitudinally displaced by rotating a hand wheel to correct the error. The sprockets are rotated from a shaft 41 by a worm 214, wheel 215 and adjustable crankpin 220 connected to a ratchet-and-pawl mechanism on the shaft 184.