Patent GB-674822-A (GB)
Abstract: 674,822. Cash registers. ERICSSONS KASSAREGISTER AKTIEBOLAG, L. M. March 11, 1946 [April 20, 1945], No. 7558/46. Class 106 (i). A cash register for selectively printing amounts on a continuous paper strip (receipt printing operation) or on a separately inserted slip (note printing operation) by means of one and the same printing mechanism, is characterized in that a table serving as a common support for said paper strip and said inserted slip is shiftable between two extreme positions, viz. an extreme outer position in which only the continuous paper strip is in position for printing an amount thereon (receipt printing position) and an extreme inner position in which the paper strip is removed from the printing mechanism and a separate slip placed on the table is in position for printing an amount thereon (note printing position). Just inside an end plate 1 Fig. 1, of the cash register there is a slidablymounted table 3 positioned beneath the type wheels 83 and the type plate 88. The table 3 is provided on its underside with a fork member 5, Fig. 2, which encloses a journal 6 on a lever 7 pivoted on a stationary shaft 8 on which is rotatably mounted a feeding arm 9 which carries a feeding pawl 10 normally held by a spring 12 so that a pin 13 thereon engages the arm 9, which is normally urged outwardly by a spring 14. The feeding arm 9 has a toothed segment meshing with a corresponding segment on a rotatably mounted retracting arm 16 which carries a roller 18 which co-operates with a cam 20 adapted to perform one revolution at each machine cycle. The cash register normally prints vouchers or receipts from a strip in known manner by the type wheels 83 and the plate 88 but a slip may be placed on the table 3 which can then be pushed inwardly until the slip is under the type wheels 83 and the plate 88 whereupon operation of the machine causes the printing of a slip. The outer and inner positions of the table 3 are determined by a .spring-pressed pawl 23 which engages one of two incisions in the lower end of the lever 7. If the table 3 is manually pushed to its inner slip printing position the fork member 5, Fig. 2, rocks the lever 7 clockwise. Depression of the starting button 26 now starts the machine, the cam 20 through the roller 18 and arm 16 forces the feeding arm 9 clockwise to the full line position in Fig. 2. The pawl 10 will grip the top of the lever 7 and at the end of the rotation of the cam 20 the spring 14 forces the lever 9 anticlockwise and this movement is transmitted by the pawl 10 to the lever 7 which moves the table 3 to its outer position. A paper retainer 78 during the inward and outward strokes of the table 3 is spring urged into contact with the voucher strip to move said strip, with the table, away from or back to position under the type wheels 83 and the type plate 88. Normally the cash register operates as follows: The starting button 26 is depressed, the table 3 being in its outer or inner position, and transmits clockwise movement to a lever 36 which movement is transmitted by a spring 39 to a pivoted lever 37 the forked top end 41 of which engages a roller 42 on a starting arm 43 which is thereby displaced to the right until a recess 49, Fig. 5, thereon engages a roller 50 on the machine frame. In this position the arm 43 removes a stop member 44, Fig. 1, from a disc 51 and a shaft 45 is turned clockwise to start the driving motor. The starting arm is restored to its initial position by a pin 52 on the disc 51 after one machine cycle. The lever 7 is connected by a link 29, Fig. 1, to an arm 31 fastened to one end of a shaft 32 to the other end of which is attached an arm 33. The arrangement is such that if the table 3 is not in its correct outer or inner position the arm 33 abuts a pin 27 on a lever 37 which prevents the lever 36 from moving clockwise, as above described, and so prevents starting. Means is provided to ensure that when the slip table 3 is in its inner position the cash register will only operate if there is a slip on the table when by depression of the starting button the lever 36 is rocked clockwise as above described. A pivotally mounted arm 54 which because of a spring 55 participates in any movement of the lever 36 co-operates with one arm of a four-armed member 57 another arm of which co-operates with one arm of a bellcrank 59 the other arm 59a of which acts as a feeler member. The arrangement is such that when the lever 36 imparts clockwise movement to the arm 54 through the spring 55 the bellcrank 59 is rocked clockwise by the member 57. If the arm 59a of the bell-crank 59 is arrested by a slip on the table 3 the member 57 is arrested with its third arm 57a out of the path of the pin 27 and the arm 36 is thereby allowed to continue its motion so, as above described, starting the cash register. If, however, no slip is present on the table the tip of the arm 59a passes through a slot in the table 3 and thereby allows the arm 57a of the member 57 to come into contact with the pin 27 to prevent a printing operation. The slip table 3 may be locked in its inner slip printing position if it is desired to print a succession of slips. To this end the table 3 is pushed in slightly further from its in position, whereupon a pin 69 on a lug 68, secured to the underside of the table 3, Fig. 5, rocks a member 62 out of engagement with a pawl 66 which then moves to engage the lug 68 thereby locking the table. If, when the table 3 is in this locked position, no slip is on the table and the starting button 26 is depressed. The member 57 is rotated anticlockwise, as previously described, and its fourth arm 57b rotates a coupling element 70 into contact with a lever 73, Fig. 5, which is connected by a pin and slot connection to the pawl 66. Continued depression of the starting pin causes the element 70 to rock, through the lever 73, the pawl 66 clockwise and so release the lug 68. Specification 493,638 is referred to.