Patent GB-528273-A (GB)
Title: Listing mechanism for addressing machines
IPC: B41L47/24
Filed: 1939-05-02
Abstract: 528,273. Addressing-machines ; feeding webs. ADDRESSOGRAPH-MULTIGRAPH CORPORATION. May 2, 1939, No. 13101. Convention date, May 13, 1938. [Classes 100 (i) and 100 (ii)] A series-printing machine operating upon individual sheets is provided with a device clamped to a sheet P and positively. advanced  so as to control the feed of the sheet past a printing couple and with wind-up mechanism arranged to operate simultaneously with the controlling device to receive the printed sheet. Address-plates A are fed along a guide from a stack 12, Fig. 1, to an anvil 13 and thence to a stack 14, the impression being effected by means of a platen operating mechanism as described in Specification 470,291. The platen-carriage 31 is reciprocated by an eccentric 40 on the shaft 20, connected by a link 41 to a lever 42, which latter is connected by a link 43 to the platen carriage. A guideway 100 is held on the top  face of the frame' 10, adjacent the right-hand edge and having a base 101, Fig. 3, and ribs 102, 103 bearing longitudinal recesses 104. A bar 105 slidably mounted in these recesses 104 bears at its forward end a clamp comprising two spring- pressed members 108, 109 mounted on a shim adapted to pass between the ribs 102, 103 and extend higher than them, allowing the clamp to pass freely over the rib 102. A lever 118 holds the clamp open when required and also serves for manually moving the bar 105. The clamp is advanced by a thin metal strip 120 slidable in recesses 107 in the guideway 100 and attached by a screw 121 at its forward end to the guidebar 105. At the rear-end the strip 120 is received by and coils in a circular box 125. The strip 120 is advanced by two reciprocating pawls 142, 143, Fig. 1, pivoted at 144 to a carriage 145 slidably mounted on the guide 100 and reciprocated by a bell-crank 150, pivoted to the plate 152 rigid with the guide 100. A link 154 connects one arm of this crank to the pin 144 on the carriage 145, while the other arm is connected by the link 157 to an arm 158 rigid with the arm 42, Fig. 5, which latter is part of the platen reciprocating mechanism. The pawls 142. 143 are pressed down by springs, but can be raised manually by pins 148 thereon. The pawls engage perforations 140. 141, Fig. 1, in the strip 120, the effective stroke of the pawls being limited by an adjustable shim 160 with bevel 161 overlying the strip 120. The perforations 140, 141 on the strip 120 are in two rows to give greater strength to the strip, and strips with varying spacing of perforation can be used to suit different rulings of paper. A further row of perforations 130 in the strip 120 engage the teeth of a gear-wheel 131, Fig. 3, on a shaft 133 mounted in a bearing 135 on the plate 152 affixed to the guide 100. The shaft 133 aligns with a shaft 60 journalled in frame-brackets 61, 62, and these two shafts are each half-cut away and overlap to form a dogclutch coupling. A take-up roller 50 is loosely mounted on the shaft 60, but is coupled thereto by a spring-urged plate-clutch 64, 65 which permits of slip between the roller 50 and the shaft 60. The roller is adjusted to take up more paper than is fed forward by the clamp 108, 109 and the sheet is therefore kept taut, the clutch 64, 65 slipping. The rear-part of a shielded-plate 51, removably fixed to the frame by screens, is coiled up to form a partial tube 52 enclosing the roller 50 and open to receive the sheet, spring- urged friction rollers 53, 54 pressing the paper against the roller 50. The shim 160 is provided with a suitable scale coacting with a pointer. The mechanism is self-contained, the guide 100 forming a base and bearing a pin engaging a hole in the frame 10 ; the whole is then swung about this pin. as centre till the alignment pins 192 on the frame bracket 61 engage openings 193 in the block 135 of the attachment, when the latter is secured by thumb screws 195, the reduced shanks of which pass through ears on the block 135 and engage threaded openings in the frame 10. A pin 155 on the link 157 connects the latter to the rock-arms 158, the pin 155 being mounted in a boss on the link 157, and the shafts 60, 133 interlock. - To facilitate removal of address-plates from a full stack 14 when the sheet covers the top of the stack, the side walls 90 of the receiving receptacles are made unobstructed at the front except for lugs 91 at the top. Specification 528,307 also is referred to.