Patent GB-541447-A (GB)
Abstract: 541,447. Cash registers; calculating-apparatus. SVENSKA KASSAREGISTERAKTIEBOLAGET. April 11, 1940, No. 6575. Convention date, April 22, 1939. [Class 106 (i)] The individually settable wheels 52a-i, Fig. 3, of each totalizer of a waiters' cash register, or of a calculating or accounting machine have their axes arranged in a circle and preferably on a disc 51 which is rocked in one direction to engage the wheels with pinion shafts 55a-c geared with actuating racks, transfer being effected after the disc has been rocked back to the disengaged position shown in Fig. 3. The machine described has a single bank, 21, Fig. 1, of amount keys a row of keys 22 for the several waiters, other rows 23, 24 for classes of goods such as food, wine &c. ; and a further row 25 of waiters' bill keys. The waiter before serving an order obtains a control slip from the machine by depressing amount keys 21, his identity key 22, and a class of goods key 23 or 24. When the customer pays the waiter depresses only the amount keys and the bill keys 25, the amount then being registered only in his bill totalizer. Actuating-racks.-Depression of a key 21 positions a pin 26, Fig. 2, on a movable carriage 27 in the path of a lug 34 on a rack 28 movable under the action of a spring 31, lever 32 and lug 33. The rack is coupled in the manner described in Specification 378,931 with an amount indicator rack 35 which transmits the value to a numeral wheel 39 behind a window 40 and through a wheel 38 actuates printing mechanism. Totalizer construction; transfer mechanism- The wheels 52a -i of the totalizer are locked when in the disengaged position shown in Fig. 3 by pivoted spring dogs 53 which are displaced by fixed pins 54 as the disc 51 is rocked to engage the wheels with the pinion rods 55a - i, as shown in Fig. 11a. Transfer levers 57 pivoted at 58 have lugs 57a in the path of broad transfer teeth 56, and are pivoted to transfer arms 59 guided between the pivots 58 and movable pins 60. When a transfer is to take place the arm and lever are first moved into the path of a lug 65 on a rotary shaft 50, (on which the discs 51 are free to move), and the arm is moved into engagement with the higher order wheel to advance it one tooth. Selection and engagement of totalizer.-Each of the keys 22-25 through a lever and link system 66, 71, Fig. 3, serves to actuate a hammer member 73 and thereby displace a slide 76 mounted in a trough-shaped rocker bar 75. Projections 83 on the several totalizer discs normally rest in slots in frame members 85, and when the trough is rocked through a link 80 and arm 79 the selected hammer displaces the corresponding projection 83 and moves the disc 51 clockwise to engage the totalizer wheels with the pinion rods. Other projections 86 on the discs engage other frame members 87, and restoring springs 88 are provided. A cash drawer release is actuated by a rod 89. The amount racks 28 have teeth 28a, Fig. 2, permanently in mesh with pinions 90ah engaging spaced toothed discs 91a-h, Fig. 4, gearing with pinions 92a-h on the several pinion rods 55ah. The right-hand rack, however, gears directly with a pinion 92i on the pinion rod 55i. The totalizer discs are moved to bring their wheels into gear with their pinion rods after the racks have finished their movement to the left, Fig. 2, and the wheels are turned while the racks are being restored, after which the totalizer discs are rocked back to their normal disengaged positions and transfer is then effected. The key levers 69, Fig. 3, are adapted to engage spirally set projections 93 on shafts 94 carrying pinions 95, Fig. 4, meshing with racks transmitting the symbol identifying the selected totalizer to indicator wheels analogous to the numeral wheels. Driving; taking Oatals and sub-totals. - The main shaft 44, Figs. 2, 4 and 14, is driven through toothed gearing from a hand crank or motor, and the shaft 50 is driven through a maltese cross and toothed quadrant to provide idle periods. The shaft 44 is fitted with an adding cam 216 and a total-taking cam 217 engaging respectively levers 219, 221 pivoted on pins 223, 224 on arms 225, 226 which are pivoted on a frame rod and have their free ends engageable in slots in an angle bar 230, where they are held by hooks 209, 210 controllable by the total key Z and sub-total key X. The link 80 for releasing the totalizer discs is connected with the arms of the cam levers 219, 221, and in normal addition operations the hook 209 locks the arm 225 to permit the arm 219 to move the link 80 ; the hook 210 is disengaged and permits the arm 226 to rock idly. When the total key Z is depressed the hook 210 locks the arm 226 and the link 80 is pulled down by the cam 217 to engage the totalizer wheels with their pinion rods, while the racks 28 are in their zero position. As the cam 217 rotates the racks are moved to the left to take up the values stored in the totalizer wheels, which are zeroized. As the cam continues to rotate the link 80 is restored, the totalizer is disengaged, and on the return of the racks to their forward position the total is registered on the numeral wheels 39. The release of the key Z releases the hook 210 and replaces the hook 209 to set the machine for normal addition. Sub-totals are taken by first accumulating the total in the racks as above described and then restoring it to the totalizer while the racks return to their forward position, by actuation of the key X. The Specification as open to inspection under Sect, 91, states that the wheels of the totalizers may be set. along a helical or other non-circular line. This subject-matter does not appear in the Specification as accepted.