Patent GB-1076027-A (GB)
Abstract: 1,076,027. Selective printing. SOABAR CO. Aug. 18, 1964 [Aug. 30, 1963], No. 33712/64 Headings B6C and B6F. Ticket printing machines; type-bar machines; index-setting arrangements; fixed printing plates; aligning for impression.-Price ticket printer comprises a housing having side walls 1, 2, supporting between them a transverse plate 5 which in conjunction with partitions 9, 10 defines three channels, two of which are provided with a plurality of juxtaposed slide bars 15, 16 and one of which is provided with a type-bar 14 having fixed matter thereon. Bars are slidable for character selection and aligned for impression by detents 32, engaging in notches 20. Visual indication of characters selected.- Selected characters are shown on the surface opposed to that carrying the type characters. Platen impression arrangements; adjustable impression.-A platen 48 (Fig. 7), is mounted on a pair of levers 38, 39, Fig. 1, pivotally supported on a shaft 36 and the platen is rocked for impression on rotation of shaft 50 (Fig. 7), by manual or power-driven operation of wheel 54, Fig. 1. To adjust the impression pressure of the platen levers 38, 39 are provided with recesses 42 in which are received the ends of platen drive shaft 43 which are constrained by set-screws 44 against pressure of springs 45. Adjustment of set-screws varies the impression pressure. Platen construction.-Platen 48 (Fig. 14) comprises a flat surface 69 having three upstanding bosses 66, 67, 68, which coincide with the surfaces of selected characters on slidebars 14, 15, 16, Fig. 1. Ticket clamps; grippers; ticket feeding, guiding and cutting arrangements.-Tickets 25, Fig. 1, are supplied from a reel mounted on a spindle 206 and guided over the surface of the platen by means of a guide 86 (Fig. 16), on which it is retained by lugs 88, 102 received in platen groove 95 and by a lug 104 on the platen, respectively. Guide is provided with staggered openings 81, 82, 83 (Fig. 9), to permit impression of selected characters, further openings 115, 116, 118 being obturated by thin brass plates to prevent impression of adjacent, but unselected characters. Tickets are fed by a pivotal pawl 93 (Fig. 14) whose teeth 135, 134 engage recesses 138 (Fig. 15) and feed the tickets in succession after each impression when the pawl 93, which is slidably mounted on a rod 121 which extends below the platen and between sides 46, 47 is oscillated by 141, 150 (Fig. 11) during rocking movement of the platen. Printed tickets which following advance from the platen 48 overhang a shearing edge 188 (Fig. 14) are severed by the edge in cooperation with a fixed cutting edge 191 (Fig. 6). Serial printers.-Following setting of the type bars 14, 15, 16 (Fig. 4), any number of tickets may be sequentially imprinted with the same matter and the number is indicated on a counter 194. Pad inking arrangements.-Type-bars are inked by an oscillatable inking pad 157 (Fig. 6), which is articulated through levers 170, 182 to the platen 48, so that it is moved into contact with the type-bars on downwardly-rocking movement of the platen and vice versa. Inking pad 157 comprises a base plate 156 (Fig. 25) which in conjunction with ribs 160, 165 defines three reservoirs which are covered by an upper plate 166, terminating at one end flush with inking pad portions 26a, 26b, 26c and provided at the opposite end with ink-filling holes 168. Ink reservoirs may be filled with coloured inks. Type surfaces.-Type-bars 14, 15, 16 (Figs. 19, 20) are provided with vinyl strips 19, carrying the type characters or fixed printing matter.