Patent GB-529574-A (GB)
Title: Improvements in and relating to machines for filling material into packages
IPC: B65B1/24
Filed: 1939-02-16
Abstract: 529,574. Packing. BALLARD, R., CECIL, C. E. R., and PHILLIPS ENGINEERING CO., Ltd. Feb. 16, 1939, No. 5195. [Class 94 (i)] Relates to a machine for filling packages with material such as tea, and of the kind in wluch a heavy loose hollow block, or box member, receives a funnel around the stem of which a packet has been wrapped. According to the invention, the box member is permitted, to slide upon the machine to a position clear of the funnel when a plunger enters the funnel to compress the material therein into a package. The machine comprises a number of openended boxes 5 each slidable vertically in guides 4 carried by a sleeve 2 rotatable about a vertical column 1. Each box serves to receive a filling- funnel 7 around the spout of which a packet has been wrapped. An arcuate table 11, which extends beneath part of the path of rotation of the boxes, is supported by a vertical sliding rod 10 upheld by a spring 12. A plunger 14, having a presser-foot 15, slides vertically in guides 13 secured to the column 1 and is reciprocated by a crank disc 22 fixed on a shaft 23. A rod 16 secured to the plunger 14 moves with the plunger and depresses the table 11 if a funnel 7 should not have been inserted in a box. A forked member 18, secured to the column, lies above the path of the boxes and receives a funnel when the box containing it arrives beneath the plunger 14. Another vertical sliding rod 19, for ejecting the completed packages, is arranged in advance of the plunger in the direction of rotation of the boxes, and is reciprocated by a cam 25 fixed on the shaft 23. This shaft is driven by a loose pulley 36 through a one-revolution clutch 26 which is operated at appropriate times by two stops 51, 61. The pulley 36 is also coupled by a chain 27 and an arc-revolution clutch 31 with a shaft 280 which is geared with a pinion 29a that rotates the sleeve 2 through part of a revolution. In operation, a funnel 7 to which a packet has been applied is placed in a box 5, and the operator depresses a pedal which operates the clutch 31 and causes the sleeve 2 to rotate and carry the box from one operating station to the next. The box is kept in its elevated position by a roller 40 that engages an arcuate rail 41. When the box arrives below the plunger 14, the funnel is engaged by a forked member 18. The plunger then descends and compresses the tea and in so doing forces the packet of tea and the spring-controlled table 11, downwards until a roller 43 on the table is retained by a latch 44. The box also is moved downwards with the packet by gravity. The plunger then rises, the funnel is removed from the fork 18, and the folding of the end of the package is completed while it still rests in the box on the table 11 in its lowered position. On the next movement of the sleeve 2 the table 11 rises, the latch 44 being released by depending plates 52 carried by the sleeve 2. The rear edges 55 of the plates are inclined, and these edges engage the roller 43 and allow the table 11 to rise steadily. The box comes to rest below the plunger 19, and the descent of the plunger ejects the contained package on to the table 11 when the table is again pressed downwards.