Patent GB-195040-A (GB)
Abstract: 195,040. Morell Akt.-Ges., W., (Assignees of Kuhrt, E.). March 17, 1922, [Convention date]. Adding and subtracting apparatus.-Machines of the multiplebank, independently-operated type are provided with means cooperating with the differentialactuating members for storing up an item set on the keyboard and this item can be subsequently transmitted, as many times as desired, to the totalizing-counter or printing-meehanism. As applied to a machine of the type described in Specifications 150,970 and 175,581, in which the differential-actuating members are formed as slides 2, Figs. 1 and 2, controlled by springs 3 and adapted to be reciprocated by a cam 4 on on the main operating shaft 5 and levers 6, 7, the slides are each provided with a toothed rack portion 14 with which is adapted to co-operate a corresponding spring controlled wheel 15 mounted on a shaft 17. This shaft is carried in stirrups 20 fixed on a shaft 21 adapted to be rocked by means of a lever 24, the free end of which bears on a cam 25 on the main shaft 5. The cam 25 is so arranged with respect to the cam 4 that the engagement and disengagement of the wheels 15 and racks 14 are effected at the end of the forward movement of the slides 2 and before they begin their return movement so that no rotary movement of the wheels 15 is effected. To store up an item, the wheels 15 are maintained in engagement with the racks 14 by means of an arresting device 26 which, when the stirrup 20 is rocked by the cam 25, is adapted to pass behind an arm 22 on the stirrup and prevent the same being lowered. The arresting device is pivoted at its upper end and its lower end engages the hub 30 of a pin 29 to which is secured an arm 32 connected by a tie rod 34 to an operating-knob 35. When the knob is pulled out the hub 30 is rotated so that a recessed portion 31 thereon allows the device 26 to rock to its operative position. The hub 16 of each wheel 15 is provided with a lug 18 which engages a corresponding stop 37 to ensure the wheel 15 remaining in a normal position, and is arranged in such a manner that the lug 18 is freed at the instant the teeth of the wheel 15 engage the rack 14. When it is desired to transmit the item set up on the wheels 15 to the totalizing-counter or printing mechanism, each stop 37 is raised into the path of the lugs 18 against the action of a spring 39 by pulling a knob 46 on a tie rod 45 so as to rock a shaft 43 having angular recesses in which rest slotted plates 38 guided in lateral incisions in the stops 37. An operation of the main shaft allows the slides 2 to move until the lugs 18 are arrested by the stop 37 the value of the item being transmitted by the adjustable teeth 11 to the totalizing-counter 12 or in known manner to the printing- mechanism. The parts are restored to normal position by pushing-in the knobs 46, 35. The plates 38 are adapted to be pulled out of engagement with the recesses of the shaft 43 to render the stops inoperative, and thus prevent unimportant decimal figures of the item being transmitted. By increasing the number of wheels 15, knobs 35, 46, and associated mechanisms for each denomination, several items may be stored up. The Specification as open to inspection under Sect. 91 (3) (a) described also an arrangement comprising a stepped projection 47, Fig. 4, (Cancelled) on each differential-actuating member 2 and a corresponding arm 48 frictionally mounted on a shaft 49 on which is fixed an arm 50 connected by a pin and slot to a bar 51 reciprocated by a cam 52 on the main shaft. In operation the shaft 49 is moved longitudinally to bring the arms 48 into the path of the projections 47, whereby, on the rocking of the shaft 49, relative angular movement takes place between the arms 48, 50, in accordance with the movement of the members 2. The shaft 49 is returned to inoperative, position so that the setting of the arms 48 is retained until the item is to be transmitted to the totalizing-counter &c., whereupon the shaft is again moved and the bars 51 are pulled out by knobs 54 and locked by notches 55 to set the arms 48 to limit the movement of the members 2 on an operation of the main shaft. The arms 48 are returned to normal position by a bail 61 mounted on an arm 60 on a shaft 58 adapted to be rocked by a tie rod 57 and knob 56. In a modification, the arms 48 may be replaced by stepped sectors and the stepped projections 47 by uniform projecting stops. This subject-matter does not appear in the Specification as accepted.