Patent GB-191007071-A (GB)
Title: Improvements in Wrapping Machines.
Inventor: EDWARDS BRUCE VINCENT
IPC: B65B11/08
Filed: 1910-03-21
Granted: 1910-09-01
Abstract: 7071. Edwards, B. V. April 9, 1909, [Convention date]. Packeting by wrapping-up.-In a machine for wrapping cheese, soap, or articles of various shapes, the devices for folding the wrappers are operated by the carrier that convevs the articles to the folders. The articles -are fed to the machine by an endless conveyer 50, Fig. 4, and pass over rollers 58 to pivoted rests 4, Figs. 3 and 4. When the rests are withdrawn, the article is deposited on a carrier 2 mounted on the upper end of a reciprocating rod 8. A verticallymovable follower 14 is mounted above the carrier on the lower end of a bar 15, which is moved downwards with the carrier by a bar 18, Fig. 4, connected by means of a rod 19 with the rod 8. The end of a rod 15 is engaged by a dog 20, Figs. 4 and 10, pivoted to the bar 18 and held in line with the rod 15 by a spring 21. The dog is provided with a projecting arm 22 which engages a stop 23 at the lower limit of its movement, thus throwing the dog out of engagement with the rod 15 and allowing the follower to be lifted by a spring. The paper for the wrappers is fed on to the machine from a roll 27, Fig. 4, by rollers 30, 31, and is cut into blanks by knives 42, 43. The upper roller 30 is driven from a pulley 34, Figs. 3 and 10, by a clutch 36 which is thrown into action by a pivoted trip arm 41 operated from the rod 15. The paper is thus fed intermittently. The article and wrapper are conveyed by the carrier and follower to the folding-mechanism, where the sides of the wrapper are folded up by plates 65, 66, which are placed on opposite sides of the path of the carrier. At the same time, the ends are folded up by end folders 600, Fig. 4, which are fixed to rods 601 pivoted on a verticallymovable head 602 upheld by a spring. The carrier, as it descends, engages the inner ends of the rods 601 and causes them to turn the folders 600 to fold the ends of the wrapper. The plate 65, Figs. 3 and 10, is fixed, but the plate 66 is pivoted and is held in a vertical position by counterweights 68. It is also provided with supporting-arms 69. Each plate is provided with pivoted end folders 82, Fig. 17, which are secured to closing-cams 83, and are held open by springs 84. The top of the packet is folded by plates 75, Figs. 3 and 10, attached to the upper ends of arms 73 which are pivoted at their lower ends to the plates 65, 66. Adjusting screws 76 passing through the arms 73 engage the cams 83, Fig. 17, and close the end folders 82 when the arms are swung inwards by means of pivoted levers 77, Fig. 10, which engage the arms 73. A dog 79 pivoted to the lower end of the lever 77 is caused by a spring 81 to project in the path of the carrier 2 and is closed by the carrier on its downward movement but permits the carrier to pass on its upward movement. When the carrier commences its upward movement, dogs 95, Fig. 4, pivoted to the carrier, engage the undersides of the supporting-arms 69 and turn the plate 66 into the discharging position shown in Fig. 3. A slotted arm 94 engages a dog 92 on the downward movement, and assists the counterweights 68 to restore the plate to its normal position. The article is discharged into a delivery shoot 97 the sides of which complete the folding of the ends. Brushes 98, which are kept constantly moist, are arranged in the sides of the shoot and damp the ends of the wrapper to cause them to stick together. In order to hold the folds in place while the plate is turning to discharge the package, latches are fixed to the back of the plate 66 which lock the folders in the closed position and release them when the plate has completed its movement.