Patent GB-443432-A (GB)
Abstract: 443,432. Registering accounts &c. KRUPP AKT.-GES., F., Essen, Germany. Aug. 27, 1934, No. 24621. Convention date, Aug. 31, 1933. [Class 106 (i)] In an accounting-machine intended for the execution of series of book-keeping operations each consisting of several correlated machine operations, independently-operable selecting-keys 1, 2 are provided respectively for the positive and negative registrations, the operation of which keys determines the machine operation not only as regards its sign (e.g. by selection of the appropriate side of the balance mechanism) but also as regards its nature (e.g. by selection of certain totalizers and designation-printing members) which varies in accordance with the registration to be made. The machine is provided with the usual banks of amount keys, positive and negative banks of transaction keys 36, Fig. 2, positive and negative motor bars 1, 2, Figs. 1 and 7, and a total-taking control lever 45, Fig. 3. In addition to the usual transaction totalizers, totalizers are provided for summing the old positive and negative balances, the entries and deductions, and the new positive and negative balances. These totalizers are controlled by two groups of blank keys OC, En, NC and OD, De, ND, Figs. 1 and 7, the credit group being associated with the positive motor bar and the debit group with the negative motor bar, the arrangement being such that a selected key is depressed with its associated motor bar in every machine operation other than that involving the reading or resetting of an individual totalizer, for which latter purpose detachable key heads are applied to the keys. In operation the old balance is set up with the control lever in " Add " position, and is entered into the positive or negative old balance totalizer by the depression of the appropriate motor bar, the motor bars being in normal connection with keys OC, OD. The items are then entered one at a time and characterized by depression of transaction keys, which keys serve to select the keys En, De for connection with their associated motor bars and to lock the inappropriate bar. Finally, the control lever is moved to " Balance " position to couple the blank keys NC, ND and transfer the amount of the new balance into the appropriate totalizer, the inappropriate motor bar being locked during the operation by means under the control of the balance totalizer. In a modification, the keys En, De are selected automatically after an old balance entering operation. Operation of blank keys by motor bars. The T-shaped inner ends of the motor bars 1, 2, Fig. 1, are connected by links to arcuate plates 9, 10 respectively, which plates are coupled for circumferential movement by a pin-and-slot connection 7, 8 that permits individual radial movement. The plates are each provided with three hooks 28 ... 30, 31 ... 33, adapted upon the circumferential adjustment of the plates to four possible positions, to take over pins on the blank keys and thus couple with their associated motor bars the keys OC, OD, or En, De, or NC, ND, or uncouple all the keys. In the normal position of the plates, hooks 28, 31 connect the bars to the old balance keys OC, OD, in preparation for entering an old balance. Selection of blank keys by transaction banks. Associated with each transaction bank is a slotted plate 37, Fig. 2, that, upon depression of a key, moves downwardly and through a link 38 and disc 41 rocks a shaft 18 counterclockwise. This rocking of the shaft 18 is communicated through an arm 17, Fig. 1, and bell-crank to the plates 9, 10 which move one step clockwise to disengage the keys OC, OD and engage the keys En, De in readiness for entering an item. The movement of the slotted plates 37, Fig. 2, also serves through arms on a shaft 48 to shift one of two locking plates 51, 51<1>, Fig. 3, downwardly to present a projection 52 or 52<1> in looking position relative to the inappropriate motor bar. Selection of blank keys by control lever. Upon the adjustment of the control lever 45, Fig. 3, from " Add " to " Balance " position, the plates 9, 10, Fig. 1, are shifted to their extreme right hand position to couple the keys NC, ND to their associated motor bars, in readiness for entering the new balance into the appropriate totalizer. For this purpose, the shaft 18, Figs. 1 and 3, is connected to the control lever by a cam slot 44 and arm 42. At the same time, the inappropriate motor bar is locked by one of two slotted plates 56, 56<1>, Fig. 4, controlled by projections 67, 671 on a shaft 68 that is angularly set in accordance with the sign of the amount on the balance totalizer. In add and subtract operations, both plates 56, 56<1> are free to move and serve merely as an interlock between the motor bars. However, upon the movement of the control lever to " Balance " position, a cam 74, Fig. 3, acts through a lever 70 and links 69, 69<1> to swing a pair of connecting links 60, 60<1> to the right and thus couple the slotted plates to levers 64, 64<1>, the outer ends of which cooperate with the projections 67, 67<1>, respectively, so as to lock one of the plates and hence one of the motor bars. Automatic selection of blank keys. In a modification, Fig. 7, the depression of a motor bar to initiate an old balance entering operation selects the keys En, De for all subsequent operations in which the control lever remains in " Add " position. For this purpose a slide 76 is connected to the plates 9, 10 by a spring 77 and is provided with inclined projections 80 by which it is cammed upwardly upon the depression of a motor bar. The slide is held in its upper position by a pawl 83 and urges the plates upward to a position in which a stud 79 thereon again contacts with an abutment 78 on the slide, in which position the keys En, De are coupled to their associated bars. This movement is delayed until the end of the first or old balance entering operation by a latch 88 that takes over an arm 86 of the shaft 18. However, towards the end of the operation, the latch is tripped by a cam 93 and the plates released. Upon the movement of the control lever to " Balance " position, the plates are adjusted as previously described and the pawl 83 disabled by the cam 74, Fig. 3, acting through arms 100, 97. Thus, upon the readjustment of the control lever to " Add " position, the slide 76 and plates 9, 10 take up their original positions. Specification 368,117 is referred to.