Patent GB-191206183-A (GB)
Title: Improvements in Paper-winding Machines.
Inventor: WARING STEWART
IPC: B65H19/22
Filed: 1912-03-12
Granted: 1912-08-01
Abstract: 6183. Waring, S. March 20, 1911, [Convention date]. Feeding and winding webs.-A machine for severing pieces of wall-paper &c. of predetermined length from a web and winding them into separate rolls comprises a reciprocating cutting-knife for severing the web transversely. a series of continuously rotating roll-forming members arranged annularly about a central space occupied by the paper roll while it is being formed, and means for delivering the completed rolls on to an endless travelling belt. The web is fed from main feed rolls through an open top receptacle or boat, and a reciprocating gripping-device feeds the severed end of the web to auxiliary feed-rolls which feed theweb to the winding-device. The web passes from the primary feed-rolls (not shown), over a receptacle 10, Fig. 1, over tensioning- rolls 15, 13, 14, and through an aperture 12<b>, Fig. 3, in a plate 12<a> on which the cutting- knife is fixed. Auxiliary rolls 16, 17 then feed the web to the winding-rollers 22, 23, 24, 25, 26, which preferably rotate faster than the feed rolls. The rolls 16 17 are slotted to receive guides 16<y>, 17<y>, which direct the web through the rolls 16, 17 and into the space between the rolls 22, 26. The upper roll 17 is mounted in bearings on guide rods 17<c> controlled by springs 17<c> adjustable by screwed thimbles 17<f> through which the rods pass. A cutting-knife 60, actuated from a shaft 45 in a manner to be described, severs a predetermined length from the web, and the leading edge of the web is then fed forwards by a pair of grippers 98 which press the paper upon a movable plate 80 fitted at its front with a guide 85 formed of parts 85<a>, 85<b> mounted on spring-controlled rods 84 guided in supports fixed to the plate 80, the parts 85, 80 moving together until the part 85 is stopped by fixed abutments; the part 80 then moves relatively to the part 85 so as to protrude the edge of the web between the rolls 16, 17. The grippers 98 and plate 80 are actuated by means of a pair of rock-arms 92 on a shaft 90 mounted in bearings on the plate 80, the arms 92 being connected to links 93 pivoted to arms 94 on a shaft 95 which is oscillated by a cam 97 on the time shaft 45. The arms 92 are first oscillated so as to permit coiled springs to bring the freely - mounted grippers 98 into engagement with the paper: arms 105 integral with the arms 92 then engage the plate 80, and the plate is moved forwards to feed the severed end of the web. The plate 80 returns with the arms 92, but the grippers are previously opened to free the web. The winding-rollers 22 ... 26 are each formed with annular flanges which fit into similar notches in the adjacent rolls, but the rolls 25, 26 are arranged so that the flanges are tangential. The flanges of all the rolls are formed with transverse notches. The rolls are driven by gearing from the feed rolls 16, 17 which are driven by a pulley 20 and belt 19<a>. The rolls 24, 25, 26 are directly geared together, and the rolls 22, 23 which are mounted in pivoted arms 29 are driven from these by belt gearing comprising a belt which passes over a double pulley arranged concentrically to the pivot of the arms 29. The rolls are arranged to move in the same direction and at the same peripheral speed, and they act as shown in Fig. 3, to coil the paper about its inner end. The arms 29 are normally pulled towards the right in Fig. 1 by means of a weak spring 39 acting on an arm 37 on a shaft 38 connected by a link 35 to rod 36 connecting the arms 29. As the roll gets longer, the arms 29 move outwards and a stronger spring 42 acting on a freely-mounted arm 40 is brought into action to oppose the movement of the arms 29 and to cause the rolls 22, 23 to exert a greater pressure on the web roll. When the roll is completed, a cam 46 acts on an arm 47 on the shaft 38 and moves the arms 29 to such a position that the roll drops on to constantly driven belts 50 supported above a table 55. A guide 56 directs the roll into position and the roll comes to rest against upright plates 57. The motion of the belts 50 tends to keep the finished roll wound up. The speed at which the rolls 16, 17 are driven is controlled by a roller 110 on rockarms 111, which, if the tension of the web becomes too great, move a pulley 115 so as to slacken the driving-belt 19<a> by means of a link 112 and swinging arms 113.