Patent GB-317811-A (GB)
Abstract: 317,811. National Cash Register Co., Ltd., (National Cash Register Co.). May 23, 1928. Cash registers; printing on inserted material; statistical machines.-In a cash register, or a statistical, embossing, perforating or calculating machine, wherein an inserted card is moved at each operation by the machine to the printing point and back again, line-spacing is automatically effected by the cardmoving mechanism after the first line has been manually selected. The invention is describel as applied to the machine set forth in Specification 272,547, wherein a card is printed on consecutive lines by successive operations of the machine. The card carriage consists of a plate 60, Figs. 1 and 2, slidable along a shaft 61 and, to facilitate the insertion of the card, face downwards, the plate can be lifted about the shaft into the vertical plane to receive the card in a clip formed by a spring-controlled plate 67 adapted to clamp the card over positioning studs 64. Connected with the carriage through a yoke is a rack 98, Fig. 4, engageable by a stop-lever 96 loose on a shaft 97 and sleeve-joined to an arm 94 bifurcated to embrace a yoke 93. When the carriage is swung up, as shown in Fig. 6, a link 82, cam-slotted lever 84 and link 90 rock the yoke 93 upwardly to disengage the lever 96 from the rack. The lever 96 may then be shifted along the card to the desired line and the carriage and card turned down again, the lever in this movement again engaging the rack. When the card carriage is raised, connections between the lever 84 and a shaft 110, Fig. 1, lift a shutter 111 from covering an opening to allow insertion of other record material to be printed by the lower set of type wheels. The card having been inserted in the carriage and the line selected as described above, the carriage is slid to the right until the stop-lever 96 abuts against an arm 103, Fig. 4, fixed to the shaft 97 and a hole 101 in the lever engage a stud 102 on the arm. The carriage cannot be raised after it leaves its extreme left-hand position owing to an extension of the carriage entering a channel in the fixed frame member 75. When the machine commences its operation a cam 126, Fig. 4, rocks the shaft 97 through connections 124, 122, 121 to raise the stop-lever 96 from engaging the rack 98 so that the carriage may be shifted to the printing position by the machine through the gearing shown in Fig. 9. This carriage-traversing mechanism includes a loose sector 141 rocked by a cam 147 on the main printer shaft 128. Pin-and-slot connected to the sector is a plate 148 slidable on the shaft 139 and having an ear 149 to form a driving-connection with a spur-wheel 140 fast with the gear-wheel 138. The position of the plate is controlled by another cam on the shaft 128 through a cam-slotted member loose on the shaft 139 and engaging a pin 151 carried by the plate. At the beginning of the cycle this member raises the plate to complete the drive to the carriage which is then shifted to printing-position. After impression the sector 141 performs its return stroke but before it reaches home position its connection with the spur-wheel 140 is broken by the lowering of the plate 148 so that the carriage rests at a point one line short of its previous position. In the next operation of the machine therefore the carriage will be traversed farther into the machine and the card will in consequence receive the imprint on the next line. To prevent release of the machine unless the carriage is manually moved fully to the right to bring the stop-lever 96 against the arm 102, a sector 187, Fig. 15, co-operating with the supporting arm 189 of the usual detent plate 166 of the release bank is linked with a parallel-motion bar 190. When the carriage is slid fully to the right an arm-connected with the stop-lever 96 engages the lug 201 to carry the bar with it and thus free the release keys. The notch 202 ensures the restoration of the bar 190 when the carriage is moved back again. In order to prevent a further cycle of operation after the last line of the card has been imprinted the following mechanism is provided. Co-operating with a lug 212 on the usual release-shaft locking-arm 177, Fig. 13, is a pawl 210 controlled by a lever 214 connected with a lever 221, Fig. 16, pivoted on a fixed stud 222. When the carriage occupies such a position that the yoke connecting the carriage with the rack 98 is under the enlarged portion 226 of the lever 221, this lever by being thus displaced permits rocking of the pawl 210 to the left. The machine being at this time still in operation, the lug 212 is not blocked by the pawl but at the end of the operation the arm 177 returns to home position and is then obstructed by the pawl thus preventing a further release of the machine until the carriage has been withdrawn from the lever portion 226.