Patent GB-190828472-A (GB)
Title: Improvements in Machines for the Manufacture of Paper Vessels applicable for use in the Delivery of Milk or Cream to Customers and for Purposes.
Inventor: TAYLOR ELMER ZEBLEY
Filed: 1908-12-31
Granted: 1909-12-31
Abstract: 28,472. Taylor, E. Z. Dec. 31. Box-making machines.-In a machine for making paper vessels applicable for use in the delivery of milk and cream, paper tubes carried by an intermittently-rotating table have their upper and lower inside edges pasted and are then supplied with bottom pieces having downwardly-turned flanges. The lower edge of each tube is turned up and rolled out to enclose the flange on the bottom piece, and the upper edge of the tube is then rolled out to the desired shape, preferably with a groove to receive a flat disk lid, an internal shoulder to prevent the lid from being inserted too far, and an external shoulder to prevent jamming when the finished vessels are nested together. The vessels are completed by treating the lower outer parts with wax or other sterilizing and waterproofing material. The table 11, Fig. 1, which carries the pockets 12 for receiving the paper tubes, is rotated intermittently by frictional contact with a continuously-rotating toothed ring 3 driven from the main shaft 9. When the table 11 has moved almost far enough to carry a paper tube from one operating - station to the next, a camoperated lever 28, Fig. 2, applies a brake band 14 to the lower part of the table 11, thus retarding its motion. The table is brought to rest finally by a cam-actuated pawl engaging a single tooth on a wheel 19, which is secured to a toothed wheel 17 gearing with teeth on the periphery of the table 11. The wheel 17 may be made to assist in driving the table 11 by means of a friction clutch. Each of the pockets 12 for receiving the paper tubes is mounted on ball bearings, and is rotated continuously within the table 11 by means of the toothed ring 3. A paper tube to be operated upon is placed by hand in a pocket 12, at the station a, and, when this pocket arrives at the station b, a paster 80, carried by a vertically - reciprocating frame 34, descends into the paper tube. The arm 82 carrying the paster is moved by a cam to bring the paster into contact with the paper vessel, which rotates continuously with the pocket 12. When the paper tube reaches the station c, the operator places a downwardly-flanged bottom piece on a suction tube 86, which reciprocates vertically through the pockets 12. The tube 86 carries a pump barrel 91 at its lower end, and is reciprocated by a toothed pinion, which is carried by a verticallyreciprocating frame 35 and gears with a stationary toothed rack on the tube 86. The piston of the pump is carried by the reciprocating frame 35. When the suction tube 86 has deposited the bottom piece in the paper tube, the latter is moved to the station d, where the bottom edge of the tube is turned up by a shaped head on the frame 35, the paper tube being meanwhile pressed down in its rotating pocket by a weighted head on the frame 34. At the station e, the bottom edge of the vessel is rolled out, to make the parts adhere firmly, by means of a head carried by the frame 35. The head rises centrally below the vessel, and is then caused by an eccentric to move into contact with one side of the rotating vessel. During this operation, the vessel is retained in position by a head on the frame 34. When the vessel reaches the station f, the upper edge is turned in by a non- rotating head on the frame 34, the paper tube being meanwhile lifted out of its pocket by a gripper, which is carried by the head 35 and is arranged to rotate with the pocket. At the station g, the upper edge of the vessel is rolled oat to the desired shape by mechanism similar to that used for rolling-out the bottom edge of the vessel. The lower part of the vessel is treated with paraffin wax &c. at the station h by means of a head, which is carried by the lower frame 35 and may be formed of perforated metal covered with felt &c. The waxing- head is connected to a pump which supplies it with wax and removes any surplus from the paper vessel. The finished vessels are delivered at the station i by a reciprocating tube, which may be connected to a suction pump and may be operated in a similar manner to the suction tube 86. The delivering - tube raises the vessels out of their pockets and pushes them past retaining-fingers, which hold them in their elevated position and are arranged in a tube in which the vessels are stacked.