Patent GB-1182662-A (GB)
Title: Accounting carriage control and drive mechanism
Inventor: SCHUBERT FRITZ
IPC: B41J11/54
Filed: 1967-02-22
Abstract: 1,182,662. Typewriters &c. BUCHLINGSMASCHINENWERKE KARL-MARX-STADT VEB. 22 Feb., 1967, No. 8499/67. Heading B6F. An accounting machine having a divided platen 65, Fig. 1, and a hopper 3 which is mounted on pivotal arms 2, 2<SP>1</SP>, Fig. 2, for selective insertion of front and rear cards 4, 5 associated with a ledger sheet, (not shown), on the platen 65, is provided with line spacing means comprising a line spacing lever 42, 42<SP>1</SP>, Fig. 3, which is mounted pivotally on a spindle 76 and carries line space pawls 64, 64<SP>1</SP> for selective line spacing of portions of the divided platen as well as pawls for line spacing of feed rollers (23, 24, Fig. 4), for the front and rear cards, respectively. Paper, card, web feeding clamping and guiding arrangements.-The divided platen 65, (Fig. 6), is associated on the one hand with feed rollers (101, 103) which are mounted on a lever (100) and on the other hand with a leaf spring which is unstressed to disengage the rollers from the platen when the lever is pivoted anticlockwise and a cam (102) releases the distal end of the leaf spring. The card hopper 3, Figs. 1 and 2, which is mounted on the pivotal arms 2, 2<SP>1</SP> is pivoted clockwise about a shaft 1 to bring its card feeding end adjacent the card feeding rollers (23, 24, Fig. 6) which are moved away from fixed but rotatably mounted card rollers (21, 22). The pivotal movement of the card hopper 3 is initiated by longitudinal displacement of one or both of keys 8, 9 which cause pivotal movement of control levers 12, 13 provided with lugs 10, 11 co-operating with lugs 6 on the pivotal arms 2, 2<SP>1</SP>. The pivotal movement of the control levers 12, 13 also rocks a lever 15 articulated to toggle levers 19, 20 which cause the card feeding rollers to be moved relative to one another, on pivoting of the card hopper 3 into its card feeding position. The card hopper is arrested by a lug 38 fast with an arresting lever 37 which engages a detent 39 on the pivotal arms 2, 2<SP>1</SP>. The card hopper 3 is restored to its inoperative position on depression of a motor key (not shown), which causes a control slide 30 to be displaced upwardly to release the card hopper 3 which is restored by a spring 34 into abutment with a stop 36. The toggle levers 19, 20 in turn restore the card feed rollers (23, 24) into contact with card rollers (21, 22). Line-spacing arrangements.-The line spacing of the ledger sheet by rotation of the platen 65, Fig. 3, and line spacing of the cards 4, 5 is is effected by pawls 64, 64<SP>1</SP> carried on a line spacing lever 42, 42<SP>1</SP> and co-operating with ratchet wheels 74, 75 on the platen 65 and ratchet wheels 77, 78 on the card feed rollers (23, 24), respectively. Depression of a line spacing key (not shown) causes a control bar 31, Fig. 5a, to raise levers 91, 86, 95 to set the line spacing cams 69, 69<SP>1</SP> and 79, 80 through respective arms 92, 84, 94 to present cam portions 70, 70<SP>1</SP> adjacent the pawls 64, 64<SP>1</SP> which are normally out of engagement with thier associated ratchet wheels 74, 75 and 77, 78. Subsequent and consequent pivotal movement of a bar 43 causes the line spacing lever 42, 42<SP>1</SP> to be rocked clockwise, whereby the pawls engage their associated ratchet wheels to effect the selected line spacing. The line spacing ratchet wheels are displaced selectively under the control of the disposition of the bar 31. In one position of control bar 31 the insert cards and the righthand portion of the platen are line spaced and in another position of the bar only the lefthand portion of the platen is line spaced. Blanking feed arrangements.-To find a subsequent printing line on the cards 4, 5, the latter are provided with a notched mark effected by a notched lever (60, Fig. 4), which is actuated by bellcrank levers (52, 56), the former of which when released by the nose (50) of a pivotal lever (45) follows the bias of a spring (53). The pivotal lever is rocked anticlockwise by a pin 26, Fig. 2, on a lever 25, which pin is also engaged by a driving arm 33 of a fulcrum lever 32, when the control slide 30 is moved upwardly.