Patent GB-190317458-A (GB)
Title: Improvements in Machinery for Setting up Cartons or Boxes and the like
Filed: 1903-08-11
Granted: 1904-01-21
Abstract: 17,458. Lake, H. H., [Pneumatic Scale Corporation]. Aug. 11. Making paper boxes.- Relates to a machine for setting up folded paper boxes, of which the side flaps are sealed and the end flaps project, as shown in Fig. 4, and for pasting and closing the end flaps. The folded boxes are stacked in the hopper 1, and are withdrawn one by one through an opening by a shoulder on the sliding carriage 2, mounted beneath the hopper on sliding rods 3, 4, 5, 6, and connected by the link 7 to the lever 8 on the rocking shaft 9, actuated through the lever 12 by the cam 10. Each box is held on the carriage 2 by the suction pipe 13 acting through holes 14 in the carriage. The pipe 13 is connected with the air chamber 15 partially exhausted by the pump 16. The two-way valve 17, controlling the action of the suction pipe, is operated by the cam 19 on the shaft 21. Two rods 25 slide vertically in bosses 24, and are attached to the crosshead 26, on which are mounted the pivoted lifting-arms 28 carrying the sucker 29. The sucker 29 consists of a perforated plate, around which is a flexible rubber lip, and is connected by pipes 30, 31 to the vacuum chamber 15, through the valve 32 operated by the cam 20. The arms 28 form bell-crank levers, and are raised from the horizontal to the vertical position by the rods 34 connected to the lever 36, which has a roller 38 engaging the cam 39 on the shaft 11. While the box is still held on the carriage 2, the sucker 29 descends and seizes the upper panel of the box. The box is held on the carriage until the sucker has risen a short distance, by which means it is partially opened. Then, as the arms 28 rise to the vertical position, the box is opened or squared by the guide-plate 64. As soon as the arms 28 are vertical, the block 42, Fig. 5, mounted in front of, and between, the arms, on rods 4], is caused to rise by the rod 46 pivoted to the lever 47, and is carried up through the box until the pointed ends of the rods 41 engage holes 55 in one of a number of blocks 44, carried by arms 69. The bosses 56 press against the lower end of the block 44, and further motion of the rods 41, 46 causes the studs 53 to press against the lugs 54, and to open the fingers 43, as shown in Fig. 4. The fingers 43 spread open the flaps 57, and prevent them from engaging the lower end of the block 44. During the upward movement of the rod 46, the finger 58 engages the tail 59 of the latch 40, which has hitherto prevented the arms 28 from rising. The latch 40 is thereby thrown off, and the sucker 29, holding the box, rises and slips the box over the block 44, the arms 28 being prevented from turning beyond a vertical position by the pawl 60 engaging a notch in the plate 61 attached to the crosshead 26. The block 42 descends, and the fingers 43 close, as soon as the flaps 57 have passed over the block 44. The finger 67, on the pivoted lever 66 operated by the cam 68, pushes in one of the bottom flaps 103 under the block 44. The sucker 29 then releases the box, and the arms 28 descend. The arm 69 carrying the block then revolves, carrying the box over the rail 75, which holds up the flap opposite to the one folded by the finger 67. Intermittent motion is given to the arms 69 by the pin 74 on the rotating disc 71 engaging, successively, with slots in the disc 72 mounted on the shaft 70. The side flaps are opened out horizontally by the guide-plates 76, 77, and are passed over the glue roller 78. They are then closed in turn by the guide-plates 79, 80. The box is brought over the plate 81 attached to the lever 85, operated by the cam 87, by which the flaps are pressed, and then slides over the table 88. The box is thrown off the block 44 by the descending hookshaped fingers 92 on the block 91 connected by the rod 94 to the lever 93, which is operated by the roller 97 on the lug 98 on the lever 47. The glue roller 78 is revolved intermittently in the pan 100 by means of bevel gearing 101 from the shaft 70. The machine is adapted to set up boxes which have a lining of paper &c. pasted inside. The lining 102, Fig. 19, is folded with the end flaps 103, 104, leaving triangular flaps 107 which are glued and folded with the side flaps 105, 106. A depression is preferably formed in the carriage 2, to allow for the extra thiokness where the panels overlap to form the seam.