Patent GB-172612-A (GB)
Abstract: 172,612. American Sales Book Co., Ltd., (Assignees of Hagemann, L. F.). Dec- 8, 1920, [Convention date]. Feeding, winding, and registering webs.-Relates to autographic registers of the kind desscribed in Specification 136,116, [Class 16, Books &c.], wherein a number of printed webs with interposed carbon paper is employed and accurate registration of the superposed webs is effected by providing the webs with apertures at intervals and forming the feed roller, which draws the webs from the supply rolls, with a portion of its periphery of such a width as to enter the apertures to cause periodic interruption of the feed. The invention consists in the provision of a rewinding device for one of the webs, which device is driven by a motor in such a manner as not to interfere, with the proper feeding and registration of the webs. Three supply rolls 4, 5, 6 rest upon the bottom 7 of the casing 2 and on inclined plates 8 and the webs pass together over a plate 13<1> and between narrow feed-rollers 14 and a co-operating spring-pressed roller 15. The webs have apertures 17, Fig 5, between each printed form 16 and when these apertures reach the feed-rollers 14, the feed is interrupted. This occurs shortly before the engagement of a spring pin 30 in the operating handle 13 with a stop 27 on the casing. Further rotation of the handle brings side plates 40 on the rollers 14 into feeding engagement with the webs. The cover 18 of the casing is pivoted at 19 and is formed as a housing 23 to enclose the roller 15, the front edge 44 of the housing forming a tearing edge for the upper webs. The lowest strip is wound on a spool 57 access to which may be obtained by turning down the pivoted end 1 of the casing. The spool 57 is connected to an inner sleeve 71 by means of a coiled spring 72 the ends of which are connected at 72<1> and 73<1> to the spool and sleeve and the sleeve is engaged frictionally with a removable shaft 62 geared to the shaft 12 of the feed-rollers 14. The shaft 62 has its central part slit and expended to grip the sleeve 71 and has a bearing collar 65 engaging a seat 68 in the casing 2 and provided with a. flange 66 engaging the side of the casing. The shaft is held in position by an arm pivoted to the casing and engaging the flange 66. The web is wound over a bar 73 having arms 74 passing freely through the spool 57 and bearing against the shaft so as normally to hold the bar spaced from the spool. When the shaft 62 is removed the bar may move into contact with the spool to permit ready removal of the wound web. A ratchet wheel 75 is secured to one end of the spool 57 and is adapted to be operatively engaged by a stop pawl 76, the free end of which is adapted to be operatively engaged by one or more pins 81 on the face of the gear 42 on the shaft 12 so as to release the spool periodically to allow the spring 72 to wind the web. While the pawl 76 is in engagement with the ratchet wheel 75, the spring is wound up by the continued rotation of the shaft 62 and sleeve 71, the web accumulating in a loop between the feed-rollers 14, 15 and the spool. This slackness of the web occurs when the feed-rollers 14, 15 engage the apertures 17 allowing all the webs to be registered by the tendency of the webs to retract. When the webs are being threaded through the machine the upper webs are registered by means of fixed pins 43 on the casing which are passed through the apertures 17. The carbon sheets are carried by rolls in a receptacle 50 and their free ends are secured in place at the opposite side of the machine.