Patent GB-357299-A (GB)
Title: Improvements in or relating to addressing and like series-printing machines
IPC: B41L47/46
Filed: 1930-07-05
Abstract: 357,299. Addressing and like machines.; stencil-printing machines. ELLIOTT, H. P., 272, School Street, Watertown, Massachusetts, U.S.A. July 5, 1930, No. 20453. Convention date, July 24, 1929. [Class 100 (ii).] In a machine for printing addresses &c. from stencils or printing-plates fed in succession, two consecutive stencils &c. are moved into two sideby-side printing positions where the whole of the data on the stencils is printed on a single sheet, both stencils being moved out of the printing positions prior to printing from a succeeding pair of stencils. The machine described is particularly adapted for printing tax lists, the first stencil of each pair corresponding to a name and address and the second to particulars of property associated therewith, the names &c. being printed on one-half of the sheet and the particulars on the other half : when these particulars require more than one stencil, a blank stencil is interposed before each additional stencil, whereby the particulars are printed all in one column. As shown, stencils are removed in succession from a magazine 20, Fig. 2, and are fed along a guideway 18 by a pusher 24 reciprocated by a rod 26 connected to one arm of a bell crank 32 the other arm of which carries a pin 38 engaging a cam slot 40, Fig. 4, in an arm 42 rocked about a pivot 44, Fig. 3, by a power-actuated rod 48. A list sheet a, Fig. 3, is supported by two side-by-side platens 50, which are carried by pivoted arms 52 and are raised into operative positions by cam-levers 53 fixed to a shaft 44 rocked by a lever 58 connected to the arm 42. Printing is effected by two side-by-side inking- rollers 60 carried by arms 64 fixed to a yoke 66, which can rock about a pivot 70 and is adjustably connected by a screw 74 to a link 76 connected to the lever 58. The sheet a is fed step-by-step at right-angles to the guideway 18 by discs 184 which engage the same half of the sheet and are fixed to a shaft 180 driven by a gear 188 rotated intermittently by a ratchet actuated by a rod provided with a long slot to receive a pin 204 on the yoke 66 : the pin 204 engages between the end of the slot and the end of a screw, which may be adjusted to vary the amount of feed. Discs 216 coacting with the discs 184 are carried by spring-pressed arms 218, a pivot lever 230 being provided for lowering the discs 216 out of operative position. Tripping-arrangements.-The lever 58 for raising the platens 50 and lowering the rollers 60 is coupled tc the stencil-feed arm 42 by a pivoted spring- pressed latch 110, Fig. 4, which is disengaged at each alternate cycle. The latch 110 is disengaged by a lever 118 rocked anticlockwise about a pivot 122 at each upward movement of the arm 42 by a cam 138 on the arm and detained by a weighted catch 132 unless this is raised by a lever 146 actuated by an electromagnet controlled by the stencils. The second stencil of each pair is provided with selection perforations, the selecting- device comprising a pin-bar 150, Fig. 2, carried by arms 152 on a rocking shaft 154, which is raised by means of a cam 168 on the arm 42, and is depressed by a spring. Inking-apparatus.-Ink is applied to each roller 60, Fig. 3, by a roller 78, which is carried by pivoted arms 82 and engages an axially-reciprocated roller 88 in contact with an ink-containing roller 96. The roller 88 is mounted on a rotary shaft 90 carrying a worm gear 98, Fig. 1, engaging a worm wheel 100 rotatably mounted in a frame 102 provided with lugs engaging the opposite faces of the gear 98, rod 104 pivoted to the machine frame being connected to a crank-pin on the wheel 100.