Patent GB-325873-A (GB)
Abstract: 325,873. Black, H. D. Nov. 14, 1928. Relay type-wheel machines; web feeding andcutting arrangements. - A ticket printing and issuing machine has a rotary printing-cylinder which is arranged to carry one or more type-wheels operable by setting-mechanism to be moved automatically into any selected position of a series of positions relatively to the printing-cylinder as the same rotates and prior to the wheels effecting a printing operation. A key 1 pivoted on shaft 2, when depressed, moves by means of its extension 4 a universal clutch bar 5 which is connected by links 6 to a rod 7 rigidly mounted in the arms of a stirrup member 8 secured to a spindle 9 mounted in bearings in the frame members 3, 3'. This movement of the spindle 9 causes a pin 23 on the arm 22 to close a switch 21 to complete the electrical circuit of a motor which drives the shaft 16 and the strip feed and ejector 122, 119. A printing- cylinder 17 pivoted on the shaft 16 has rotatably mounted on it two type-wheels 57, 58 fixed to stepped cylinders 59 which, by means of coiled springs 61 housed in the typewheels, engage radial stops 56 on sleeves 53 which are moved along shaft 16 by bell-crank levers 49 operated by bellcrank levers 47 pivoted on shafts 40 and having arms 44 to engage bars 45 integral with setting - bars 37, 38 also pivoted on shafts 40 and positioned by abutments 41, 42 on stems of the keys 1. The type - wheels carry pinions 62 engaging toothed quadrants 63 with arms 64 engaging stops 65 which are moved out of engagement with arms 64 when a key is depressed but which return under action of a cam 66 mounted on shaft 16 which engages an arm 67 mounted upon the stirrup member 8 to return the type wheels to their normal position. The free end of a web of material is initially fed by hand into the lower end of a guide 104, and thence into a guide 111 where it engages with the impressiom roller 25; depression of one of the keys then causes a guillotine 110 actuated by a pin 108 on a feeding disc 105 driven from the main drive to sever a ticket from the web. After a predetermined interval the disc 105 engages with the free end of the severed web and feeds the same forwardly by an amount equal to the length of one ticket, whilst the printing-cylinder 17 in co-operating with the roller 25 prints and feeds the severed ticket into engagement with the ejection roller 118. A stop member 26 pivotally mounted on the shaft 40 is arranged to extend above the universal clutch-bar 5 and prevent it from being raised unless a web of material is disposed in engagement with the roller 25. The rod 7 has connected to it a locking bar 30 which, upon the movement of the arm 11 to one end of which is secured the spindle 9, is moved into engagement with the underside of the extension 4 of a depressed key and maintains the same in the depressed position whilst at the same time engaging with the upper side of the extensions 4 of the remaining keys so as to lock the same against depression. In order to prevent more than one key at a time being depressed a row of balls 71 is arranged adjacent the lower edges of the keys 1 so as to permit only one key lever to move. An additional type-wheel 72 is rotatably mounted on the printing cylinder and is set by means of a pin 76 on the shaft 75 rotated by an exterior milled head 80, Fig. 4, on theshaft 79 of which is a notched disc 87 co-operating with a spring-pressed bolt abutting against the 'key-interlocking balls 71 so that actuation of the additional type wheel prevents depression of a key and depression of a key prevents actuation of the type wheel. Two counters 92, one serving as a check against the other, are provided for giving a record of the total number of tickets issued by the machine, and are operated from an eccentric 97, Fig. 3, on the shaft 16 which rocks a stirrup 96, Fig. 6, having a rod 95 engaged by the links 93 which operate the counters. A special key 1<1> is provided to test the operation of the machine and this key moves a plate 100, Fig. 6, to prevent registration on the counters when a test is made. According to the Provisional Specification inking arrangements are as described in Specifications 273,576, [Class 100 (ii), Printing processes &c.] ; 282,581; and 320,946, [Class 106 (iii), Fares &c.].