Patent GB-621571-A (GB)
Title: Improved machine for making cigarette paper booklets
IPC: A24F17/00
Filed: 1946-05-24
Abstract: 621,571. Binding cigarette papers in booklet form. GOEPFERT, O. F. May 24, 1946, No. 15813. [Class 140] [Also in Group XV] A cigarette booklet-making machine comprises in combination means for feeding a plurality of cigarette-paper strips in superimposed relationship, means for folding a wrapper strip as a cover to the paper strips, means for applying adhesive to bond the cigarette papers in the wrapper, means for cutting the assembly into booklet length and means for conditioning the cut adhesive bond. Referring to the drawings, a plurality of superimposed strips of cigarette paper 23 enter the apparatus from the right (Fig. 1) while a strip of cover paper 24 from roll 27 enters in a position so that it is ready for folding over the paper 23 at folding station 31. As the cover paper 24 passes over guide 56 it is acted on by a scoring knife 108 to form scored lines 107, then passes to automatic valve element 55 where it receives spaced deposits of adhesive, then to folding station 31 where it is folded over the cigarette paper 23, and then to the severing device 32 for cutting into booklets 43 which are carried by collating device 45 into the collecting device 46. The automatic valve element 55 comprises a hollow body portion 62 and a nozzle fitting 65, while adhesive is supplied through pipe 68 and is metered by plunger rod 69. This rod 69 is reciprocated through a connection with severing device 32 and is arranged so as to apply a separate mounting for each booklet 43 formed by severing device 32. This connection comprises rocker arm 70 connected to rod 71 and thence to lever 72 pivoted at 73 and connected to rod 74 carrying an adjustment sleeve 74a. Rod 74 is further joined to lever 75 pivoted at 75a and joined to plunger rod 69. Racks 77 and pinion 78 operated by hand-wheel 87 allows adjustment of the spacing of the adhesive applying means from the severing device 32. The period for which the opening leading from pipe 68 is uncovered, may be regulated by means of collar 93 on thread 94. The adhesive is supplied to pipe 68, from an electrically-heated, totally enclosed jacketed container 85 by means of air pressure through pipe 87. The severing device 32 comprises two shafts 33 and 34, shaft 33 carrying a frame 35 with a platen 36. Secured to shaft 34 are eccentrics 37 on which are mounted straps 38 attached to shafts 39. These shafts 39 reciprocate in bores 40 and are connected to cross-head 41 carrying knife 42. As shaft 34 rotates, the knife reciprocates and severs the wrapped cigarette paper 25 into booklet length, simultaneously frame 35 oscillates and imparts a swinging motion to platen and knife so that the feeding motion of assembly 25 is not interfered with during the cutting operation. On reaching the collecting device 46, Fig. 11, the booklets pass two electric heating elements 124 with a pressing element 125 between them. The pressing element comprises a cam 126 actuating a pressure block 127 fitted on a spring mounting 128, the cam periodically shifting the pressure block inwardly so that the booklets are squeezed between the block and the opposing wall of the collecting device.