Patent GB-563081-A (GB)
Title: Printing machines
IPC: B41L47/58
Filed: 1942-10-24
Abstract: 563,081. Addressing and like machines. ADDRESSOGRAPH-MULTIGRAPH CORPORATION. Oct. 24, 1942, No. 14961. Convention date, Sept. 8, 1941. [Class 100 (ii)] A multiple column listing attachment for an addressing or like series printing machine whereby different parts of the matter on a printing plate may be printed in alignment in different columns of a list sheet, comprises a frame for fixing to the addressing &c. machine, a lister carriage reciprocable on the frame transversely of a printing position, a sheet holder mounted on the carriage for transverse movement therewith to position the columns with respect to the printing position, and movable on the carriage in a direction at right angles to the transverse movement for line spacing and for back spacing to align the matter in the different columns, means mounted entirely on the frame and carriage, and operable in response to the reciprocation of the carriage, being provided to effect the line spacing during a stroke of the carriage in one direction and the back spacing during the stroke of the carriage in the other direction, the extent of the back spacing and line spacing movements being independent of one another. In the twocolumn lister shown in Figs. 2 and 3, a lister frame 205 is detachably secured to the back 208 of an addressing machine 40 by studs 225 engaging key hole slots 228 and by locking screws 234. Rails 210, 212 on the frame 205 form guides for rollers 218, 219 and 213, 215 secured to a lister carriage 44 which is thus movable transversely of the machine 40. The list sheet F is gripped by spring closed clamps 280 carried by a holder 43 slidable, for linespacing, along a bar 250 which is itself slidable, for back spacing, on the carriage 44 in a direction at right angles to the transverse movement. The line spacing movement of the holder 43 is effected by one or the other of a pair of pawls 387, Fig. 6, mounted side by side in a pawl carrier 380 and adapted respectively to engage rows of feed openings 320, Fig. 24, in a flexible steel rack 310 secured by a slot 311 at one end to the sheet holder 43, the other end of the rack engaging and coiling up, as the line spacing continues, in a receiver 317 secured to the bar 250. The pawl carrier 380 is slidable in a slot 374 in the carriage 44 and carries a roller 382 engaging a slot 381 in a cam 350 pivoted at 356 on a plate 352 fixed to a rail 211 on the frame 205 and adjustable by means of a screw 359 engaging an arcuate slot 358 in a second plate 354 fixed to the rail 211. As the carriage 44 reciprocates transversely, the pawl carrier 380 thus reciprocates in a direction at right angles to effect a line spacing feed to the rack 310. A cam 351 similar to the cam 350 engages a roller 372 on a bracket 373 extending through the slot 374 and secured to the bar 250, so that the bar is also reciprocated with the movements of the carriage 44, the extent of the reciprocation of the bar 250 depending upon the angular adjustment of the cam 351. The lister is particularly for use with an addressing machine having platen mechanism as described in Specification 555,033, in which different platen faces are brought into operation to print from different parts of the printing plate alternately the same plate remaining in printing position for two cycles of operation of the machine. In the second half of the first cycle of operation. the matter at the upper part of the printing plate D, Fig. 2, is printed in column 90, the carriage 44 being at the left-hand position. During the first half of the second cycle the carriage 44 moves to the right to bring the column 91 over the printing plate and at the same time the cam 351 moves the bar 250 downwardly, as viewed in Fig. 2, to bring the printed impression in column 90 into alignment with the matter on the lower part of the plate D, and the pawl carrier 380 is moved through its idle stroke. During the second half of the second cycle of operation, the impression from the lower part of plate D is made in column 91, and in the first half of the next cycle, the carriage 44 moves to the left, the bar 250 being raised to its original position and the holder being raised an additional line space by the feed movement imparted to the rack 310. At the end of the movement of the carriage 44 to the right, the pawls are raised clear of the rack by engagement with an adjustable plate. This allows the holder 43 to be pulled forward by a handle 400 to permit removal of the sheet F and the insertion of a new sheet. The forward movement of the holder 43 is limited by the engagement of a stop pawl 402, Fig. 6, with an opening 403, Fig. 24, in the rack 310, this opening being spaced from the first feed opening 320-1 by a distance corresponding to the heading space on the list sheet. A further opening 431 in the rack is spaced from the last feed opening 320-L a distance corresponding to the bottom margin desired on the sheet so that when the sheet has been fed a line space by a pawl engaging the opening 320-L, a pawl 410, Fig. 6, registers with, and is raised by a spring 405 into engagement with, the opening 431. An arm 412 on the pawl 410 normally holds a switch 416 in the open position, but when the pawl enters the opening 431, the switch closes and causes stoppage of the machine driving motor. The transverse movements of the carriage 44 are effected by a link 202 adjust. ably connected to a lever 201 oscillated by a cam in the form of a drum 450 which receives one complete revolution for each two cycles of operation of the machine, by gearing from a shaft driven through a one-revolution clutch. The addressing machine may be of the construction described in Specification 558,793, in which the plate feed mechanism and the platen operating mechanism are driven through separate one-revolution clutches, the closure of which is effected by the depression of respective pedals or automatically for continuous operation of the machine, the closure also being subject . to control for duplicate, triplicate, &c. printing, or for skipping certain plates. The mechanism for controlling the clutch of the platen operating mechanism is interconnected with that of the clutch operating the cam drum 450 so that when a plate is skipped the lister is rendered inoperative. The plates 352, 354 carrying the cams 350, 351 are interchangeable with each other so that the inclination of the cam slots may be reversed, to provide for the first impression to be made in column 91 and the second in column 90 if such order is desired. The modification shown in Fig. 27 allows one or more lines on the list sheet to be skipped if desired. This is effected by widening the slot in the cam 350 to enable the pawl carrier 380 to be operated manually by a sliding link 562 and finger lever 570. By making the slot tapered as shown, the manual operation can be effected only when the carriage 44 is in the right-hand position after the complete double impression from a printing plate has been made. Fig. 29 shows a modification for three column listing. The cam drum 450<1> is driven so as to make one revolution for three cycles of operation of the machine. In the first cycle, the frame 44 moves to the left to bring column 91 to printing position, in the second cycle it moves further to the left to bring the column 90 to printing position. During the latter part of the second cycle, before the printing operation, and during the first part of the third cycle, the carriage 44 moves to the position shown to bring column 92 into printing position, and the groove in the cam drum 450<1> is appropriately formed to effect these movements. The grooves in the cams 750, 751 are also modified to produce the requisite line and back spacing movements of the list sheet holder 43. Specifications 489,390 and 560,570 also are referred to.