Patent GB-355735-A (GB)
Title: Improvements in and relating to addressing and like series printing machines
IPC: B41L45/00
Filed: 1930-05-26
Abstract: 355,735. Printing-machines. ADDRESSOGRAPH CO., 901, West Van Buren Street, Chicago, U.S.A., ELEY, A., 8, Cecil Road, The Hyde, Hendon, and HODGKINSON, E. J., 137, Churchill Road, Willesden Green, both in London. May 26, 1930, No. 16230. [Classes 100 (ii) and 100 (iv).] Addressing and like machines.-In addressing or like series-printing machines of the kind in which the printing devices are fed along a guideway to printing position, mechanism arranged in the line of the guideway is provided for printing an auxiliary impression or impressions on a sheet in spaced relation to the matter printed thereon from the variable devices. As shown, the direction of feed is at right-angles to the lines of type, and an auxiliary printing device is carried on a bed arranged above the guideway. In one form, address plates 11, Fig. 1, are fed in succession along a guideway 10, and an auxiliary printing-plate D is removably mounted in a carrier supported adjacent to and at a slightly higher level than the guideway 10. Printing is effected by means of rollers P, A arranged in tandem in a carriage 37 mounted on an impression head 34 carried by an arm 32 rocked about a pivot 20 by a cam groove 23 formed in an arm 24 connected to a driving member 19 rocking about a pivot 18. The carriage 37 is pivoted to a bell crank 30 connected to a bell crank 27 rocked about the pivot 20 by connection with the arm 24, whereby when the head 24 is lowered, the platens P, A are rolled over the address plate and the plate D respectively. In the machine shown in Fig. 5, an impression head 70 mounted on a rocking arm 69 carries a central platen 71, for printing from address plates 11, and removable platens 72, 73 for printing from auxiliary plates removably mounted on inclined beds 83, 84. The address plates are fed in succession by dogs 76 carried by bars 75 reciprocated by rocking arms 79 connected to the arm 69 by links 81, 82. Fig. 7 shows a machine of known construction comprising a platen P carried by an arm 131 rocked about a pivot 116 by a rod 113 actuated by a rotary crank disc 111, and in which address plates D are fed from a magazine M by dogs 126 on bars 125 reciprocated from the rod 113 through links 122, 119, 132, 133, and are discharged over a guide 128 to a delivery packer 129. An auxiliary printing plate A is supported on an inclined bed 134 forward of the address plate guideway, and a platen 157 correspondingly inclined is provided on the arm 131. Printing-surfaces.-The printing-plate A, Fig. 7, is mounted in a holder 136 consisting of a rectangular sheet-metal plate having three of its edges folded over to receive the plate A. Ink-ribbon mechanism.-Three constructions of ink-ribbon mechanism are described. (1) A ribbon S, Fig. 2, unwinding from a spool 40 passes over the auxiliary printing plate D, then around a guide roller 45 and back under itself to a take-up spool 41, and a ribbon R from a spool 47 passes over an address plate 11 and back to a spool 48. The spools 41, 48 are rotated intermittently by pawls 51, 60 pivoted to interconnected arms 50, 56 rocking about pivots 49, 55, the arm 55 being actuated by an arm rocking about the impression-arm pivot 20, Fig. 1. The pawls 51,60 may be moved by hand or by automatic mechanism of known kind into engagement with ratchets on the spools 40, 47 to reverse the ribbon, over-centre springs retaining the pawls in either position of adjustment. (2) A broad ribbon T, Fig. 6, covering auxiliary printing plates 85, 86 in addition to an address plate 11, is carried by spools 87, 88 acting alternately as unwinding and take-up spools. Each spool is rotated by a pawl 92 carried by a pivoted arm 93, the arms being connected by a link 94 ; one of the arms is oscillated by a rod 99 connected to an arm 96 carrying a roller 97 engaging a cam 95 integral with a link 81 oscillated by the impression arm 69, Fig. 5. A shroud is arranged over each pawl 92, and, by means of a link connecting the shrouds, either pawl may be thrown into and the other out of action to reverse the ribbon feed. (3) An ink-ribbon 139, Figs. 7 and 8, is unwound from a spool 40 rotatably mounted on a shaft 144, and, after passing over bevelled edges 138 so as to travel over the auxiliary printing plate A, is rewound on a spool 140<1> at the opposite end of the shaft 144. The shaft 144 is rotated intermittently by a pawl 150 carried by an arm 149 rocked about a pivot 148 by a rod 153 connected to the rocking impression arm 115. To reverse the ribbon feed, the shaft 144 is moved axially to disengage a cap 145 from teeth on the spool 140 and to engage a cap 145<1> with the spool 140<1>.