Patent GB-190415211-A (GB)
Title: Improvements in Paper Tube Rolling Machines.
Inventor: HURD HOBERT JAMES
Filed: 1904-07-07
Granted: 1904-08-25
Abstract: 15,211. Hurd, H. J. July 7. Paper tubes.-A machine for making papar tubes, such as are used in ammunition shells, is arranged so that, as one tube is being formed, another completed tube is being ejected from the apparatus, so that the action is continuous ; also the wiper, paste scraper, and tube presser are combined in one apparatus. Fig. 2 shows a side elevation, and Fig. 4 an end elevation of the machine. The paste rolls 9, 10, to which the paper is fed from the table 87, are corrugated and are fed with paste from a tube 16. They are driven from the auxiliary shaft 6 through gearing 11, 12, 14, 15. The lower and larger roller has a part of its periphery cut away, so that the paper is released as soon as it is properly engaged on the tube-winding arbors. After passing the rods, the paper is conveyed over a bridge, formed of strips of metal 107 resting in grooves in the rollers, to the tube-winding arbors 18, 19, shown in the sectional elevation, Fig. 5. These arbors are secured in rotatable journals 20, 21, Fig. 6, by means of screws 22, 23, which, together with the collars 20<a>, 21<a>, hold the arbors in place. By the use of the journals, arbors of various sizes may be fitted. The journals are rotatably mounted in the head 24, which also rotates in the casing 25 secured to the side-frame of the machine. The pinions 26, 27, mounted on the journals, gear alternately with the wheel 53 driven from the shaft 6. The head 24 is mounted on the spindle 32 and is rotated by reason of the pawl 37 engaging the notches 36 in the plate 35, Figs. 2 and 6, which is rigidly connected to the spindle 32. This pawl is mounted on a stud 34 carried by the arm 33<a> of the segmental pinion 33, the latter being rotated by the toothed segment 43, which is carried on a lever 40, 42 operated by the cam 38. While the arbors are thus located in vertical alignment, the head 24 is temporarily locked by means of a bolt 44, which engages notches in the bead. This locking-bolt is timed to operate by means of connection with the sliding bar 47 worked by a face-cam on the wheel 50. A spring 52 carries the bolt up to engage the notches, independently of the sliding bar 47. The outer end of the arbor engaged in tube-rolling is supported by a sliding centre 57, which is operated by pivoted lever controlled by a cam on the face of the wheel 14, as shown in Fig. 8. The combined wiper, tube presser, and paste scraper 62 is provided with a number of flexible fingers or brushes 63, and is mounted on a shaft 64, which is oscillated by means of the arm 71 actuated by a cam 66 on the shaft 6. The shaft 64 is rotated until the last and most-rigid finger 63<a> bears on the tube, in which position it is held to press the tube and remove all surplus paste When a tube is completed, the head 24 is rotated until the finished tube is in the upper position. Collars 72, 73 are then moved by a finger 76 to remove the tube from the arbor. This finger is operated by a rack 74 gearing with a wheel 85 which receives its motion through rack-and-pinion gearing, the rack 81 being mounted on the pivoted lever 79 operated by the face-cam 78. The paper, when placed upon the table 87, is gripped by a finger 90 pivoted on the slide 89 working in the table. The finger and slide are operated by a cam 101 through the lever 96, 98 and the link 93. The slide is always under spring tension by means of transverse rods mounted in the table, which bear on the side of the slide and tend to prevent its motion. By this means, when the link 93 commences to operate the slide, the finger 90 is raised or forced down, according to the direction of motion, before the slide is moved.