Patent GB-159652-A (GB)
Title: Improvements in machines for making packages
IPC: B65B9/06
Filed: 1919-12-09
Abstract: 159,652. Marks, E. C. R., (Ivers-Lee Co.). Dec. 9, 1919. Packeting by wrapping-up.-Consists of a packeting-machine provided with means for depositing articles, such as tablets, pills, cap. sules, or candies, in spaced relation upon a moving strip of waxed or otherwise moisture-proofed package-forming material, means being provided to fold the strip into a tube, and also means for pressing adjacent walls thereof into adhering contact between the spaced articles to form isolating portions alternating with the containers, through which isolating portions the strip mav be cut to form separate packages. The strip 3, Fig. 1, is mounted on a spindle 2 and passes over a guide-roll 4 to a table over which it is fed by chains 7, 8 on sprockets 9, 10, 11, 12, the chains being spaced and also pressed together by platens 89, 90, 91, 92, one of which 91, is controlled by a cam 94 to regulate the feeding pressure. Between the roller 4 and the feed chains is a shoot 13 and a picker 14, followed by a series of folding-members 15 positioned to effect a gradual folding of the strip and mounted in under-cut slots 76, Fig. 2, in a plate 75, in which they are adjustable by collars 78 on screws 77 engaging recesses 79 in the plate. The spindle 2 is driven by a motor 25, also connected through a clutch 29 to a gear-wheel 32 which is geared to the driving-pinions of the feed-chains, and to a pinion 36 on the shaft 37 of a rotary picker 38, the arms 74 of which displace articles fed from the shoot 13 on to the bolts 3. The shaft 36 also drives a worm gear 40, Fig. 12, on a collar 41 which receives slides 43 engaging threads of a screw 44 in a tube 45 and carrying the false bottom 47 of the hopper 16. A detent engaging a slot 46 in the screw prevents its rotation and the worm causes the gradual lifting of the bottom 47 to discharge the contents. To vary the feed for articles of varying sizes, different screws may be used, and the slides 43 may be disengaged by operating a knob 57, Fig. 1, to turn a disc 50 having curved slots 51 in which engage lugs 52 on the slides 43. The hopper 16 discharges into a receiver 17 which narrows at the bottom to receive a single row of articles which are fed one by one into an under cut slot 61 in a shoot 13 curved at the bottom to bring its discharge end adjacent the picker 38, where a support overlying the web receives articles one at a time for picking. The shoot 13 is agitated about its fixed lower end by the connection of an expansible collar 62 thereon to a spur 65 oscillated by a cam 69 on a shaft 66. The cross-members 88 of the chains are positioned to grip the web between the article receiving portions, and from the chains the web passes to crimping-rolls 18, 19, Fig. 10, driven from the feeding-means and synchronized therewith, whereby the web is crimped by the alternating crimping-segments 20 between the article receiving portions. Severing-blades 21, Fig. 10, may be mounted on opposite segments 20 to cut the webs through the crimped part, the blades being mounted on collars splined on the shafts of the rolls and oscillated to give a cutting stroke by a cam on the frame and a spring within the roll. The roll 19 is mounted on a spring-pressed bell-crank lever 108 to allow of disengaging the rolls by the operation of set screws. From the rolls 18, 19, the severed packages fall into a rotatable hopper 23, which may be turned to present another compartment 24 after the severing of a predetermined number of packages. The hopper is loosely mounted on a shaft 118 driven from a chain shaft 84, and one end engages a spring-pressed friction disc 139. A ratchet 121, Fig. 14, on the hopper engages a pawl 122 on a member 123, while a ratchet-wheel 125 loose on the shaft 118 is under control of a spring and is engaged by a push-pawl 128 operated from a cam on the shaft of a crimping-roller, to advance the ratchet-wheel one tooth against its spring for each package severed. A pawl 124 serves as a latch until an adjustable trip pin 129 engages the pawl 122, thus releasing the ratchet 121 and displacing the pawl 124, whereon the ratchet-wheel 125 returns to its darting position, .and the hopper 23 is turned by the friction disc 139 to present a new compartment.