Patent GB-377957-A (GB)
Abstract: 377,957. Book-keeping machines. ACCOUNTING & TABULATING CORPORATION OF GREAT BRITAIN, Ltd., Aldwych House, Aldwych, London, and CAMPOS, F., 4, Rue Dufrenoy, Paris. Jan. 30, 1931, No. 3020. [Class 100 (iv).] Type-bar machines; index setting-arrangements.-In a machine of the type described in Specifications 364,612 and 364,640, [Group XIX], wherein the segregating of any one of a large number of account storing devices is effected by the operation of a selecting mechanism and booking means is provided for entering debit or credit items in order to modifv the account and a double entry mechanism whereby the transactions are totalized, a printing mechanism is provided to record the balance of the selected account, the amount debited or credited, the.account number, an identification characteristic, the date, and a serial number. The mechanism comprises type bars connected by cams, coaxial shafts, and gears with the various mechanisms of the machine and is operated by cams on the main operating shafts 27, 29. For printing the balance old and new the gear wheels 110, Fig. 29, that co-operate with the account storing devices and the reading means therefor engage toothed sectors 701 pivoted to spring-controlled plates 703 themselves pivoted at 704 to the frames 111. Each plate 703 has a tail engaged by a bar 708 secured at its ends to two arms 709 pivoted on the axis 704 and co-operating with cams 711 on the shaft 27. To the arms are attached links 713 which co-operate with cams 715 on the shaft 29. By this means the rotation of the adding wheels is transmitted to the sectors 701 ; if the balance is altered by the addition of an item booked the shaft 27 is rotated and the sectors 701 are disengaged by the action of the cam 711 and the sectors are restored to their normal zero position and re-engaged with the pinions 110. The shaft 29 then completes its movement and the new balance is transmitted to the sectors 701. During this movement the sectors are again withdrawn, this time by the cam 715 and restored to normal position. The sectors 701 constantly engage pinions 706 on nested sleeves 707 terminating in bi-directional cam plates 717, Figs. 31 and 37, with cam slots 730, 731 engaging pins 732, 733 on type bars 734. The cam plates 717 are engaged by a roller 720 on levers 718 pivoted to links 722, 723 that co-operate with cams on the shafts 27, 29 whereby the zeroizing of the sectors 701 is effected. The type-sets 739 on the bars 734 are doubled on each side of a central " O " position, one for the old balance, the other for the new balance, the types being alternately upright and sloping for positive and negative amounts respectively. The selection of the kind of type for effecting the record is determined by the type bar of highest denomination which on movement beyond one or other of its limiting positions rocks a lever 755 that displaces a link 753 and lever 751 pivoted at 750 to a bridge member carrying a number of type punches 743 whereby the punches are displaced from their normal vertical position so as to underlie the sloping type elements. The amount entered on the booking wheels is transmitted through the shaft 67 and tubes 68, 69 to cam plates 762, Fig. 33, with cam slots 763, 764 in different planes as shown in Fig. 37 cooperating with credit and debit type bars 766, 768. The printing of the account number is effected as described in Specification 377,988, [Group XIX]. The identification characteristics are set by means of levers 779, Fig. 34, on tubes 790 to the other ends of which are connected links 781 attached to quadrants 782 engaging pinions 782b on tubes 791 carrying bidirectional cam plates 783 with cam slots cooperating with type bars 786. For printing the serial number type bars 792, Fig. 35, are provided ; each bar carries a plate 811 having a roller bearing on a cam 797 integral with a ratchet wheel 795. The ratchet wheels are loose on a spindle 796 and are actuated by stepped pawls 800 pivoted on arms 798 transfer being effected in the usual manner as by the provision of deep notches. The pawl carrying arms 798 are actuated by a lever 804 controlled bv a cam 807 on the shaft 27. Fixed type bars 970, 971 are provided for printing special signs to distinguish old and new balances and plus or minus accounts. These special type elements are actuated through displaceable punches as described for the type bars 734; the punches for the other bars are not displaceably mounted. During the actual printing operation the type bars are held aligned by a bar 861 actuated by an arm 870 on a shaft 869 controlled by a spring link 873, 874, Fig. 36, pivoted arms 877, 879, and cams 882, 883 on the shafts 27, 29. The different groups or columns of data are separated by a longitudinal line printed by means of an edge 932, Fig. 36A, formed on bars 928 pivoted to intermediate plates. When totals or sub-totals are printed a zeroizing control lever of the totalizing mechanism through a Bowden cable 934 displaces the bars 928 on their pivots so as to bring beneath the platen a double edge 935 on the bars thereby distinguishing totals and sub-totals from ordinary entries. Hammer-impression mechanism.-Each rack bar is associated with a punch 743 and an impression hammer 742. The hammers are pivoted to a shaft 830 are normally held against spring action by pivoted latches 823 each carrying a trip arm 822 with a hooked end 828. Each trip arm has attached thereto a link 821 co-operating with an arm 818 on a shaft 819 which arm normally engages a notch in the rack bar when in its zero position. When a rack bar is displaced the link 821 is depressed and the end of the trip arm is moved into the path of a bar 827 secured to arms 815 on a shaft 814. The arms 815 co-operate with cams 817 on the shaft 29 so that when the shaft is rotated the operated trip arms are displaced to release the hammer latches. The hammers are put under tension by means of a bail 853 attached to levers 850 mounted on a shaft 851 and carrying rolls engaging cams 858, 859 on the shafts 27, 29. The trip arms 822 are provided with projections 829 overlapping the adjacent arm of lower denomination. By this zeros to the right of the highest significant figure are printed. Line - spacing mechanism ; web - feeding arrangements.-The platen 740, Fig. 36, is carried on an arm 889 secured to a shaft 890 and is adapted to be lowered when printing is effected by rotating the shaft 890 through its arm 892 a pin 886 on which engages a link 885 connected by a spring to an arm 884 secured to the arms 877, 879 that co-operate with the cams 882, 883. The paper-strip, which passes between a rubber roll 741 and a spring-pressed roller, is fed by ratchet mechanism the pawl of which is mounted on a bell crank 912 operatively connected to a link 909 carried by a lever 901 with arms 902, 903, controlled by cams 906, 907 on the shafts 27, 29. To facilitate introduction of the paper-strip the operator manipulates a lever 917a which effects the disengagement of the link 885 and pin 886 through a rod 922 and through a rod 916 and lever 914 pivoted on the shaft 890 raises the arms 896 carrying the roll 741 by contact with the pin 915 on one of the arms. Specification 364,638, [Group XIX], also is' referred to.