Patent GB-372633-A (GB)
Abstract: 372,633. Multiplying and dividing machines. SCHUBERT, E., 20, Ludwigering, Rastatt, Germany. July 29, 1931, No. 21663. [Class 106 (i).] In an Odhner machine provided with a grand totalizer for receiving the products from the laterally movable product totalizer a lever is operated to effect the transmission the sign of which is determined by reversing gearing controlled by a manual setting member. The transmission from the product totalizer 6 through the pinions 7 and the reversing train 11, 12 to the grand totalizer 20 is effected by pulling the hand-lever 33 geared with the zeroizing spindle 9. The reversing gearing is controlled by a cam 40 lying adjacent the ends of the shafts 13, 14 carrying the reversing gear wheels 11, 12. If the cam is slid upwardly the drive takes place through both wheels but if it is lowered wheel 11 is removed from contact with pinion 7 and the transmission passes from the latter to wheel 12 directly. The cam is shifted by the operation of the main lever 33 and the direction of its shift is controlled by the finger lever 54 connected by members 60, 73 with a link 37 adapted to be slid forwardly or backwardly by a lever 69 linked with a bell crank 36 rocked through a one-way dog 62 by a cam fixed to the main lever 33. According to the setting of the finger lever therefore the connections at 71, 70 between the lever 69 and the link 37 are selectively rendered operative to produce the raising or lowering of the cam 40. During a subtraction transmission a latch 82 pivoted at 29 and adapted to enter a notch 82<1> in the link 60 retains the lever 54, link 37, and cam 40 set until at the end of the operation the latch is raised by a hook 81 suspended from a lever 83 which is held throughout the cycle by a cam 79 rotated from the main lever but is permitted to rise at the end by a notch in the cam. For effecting transfers in the grand totalizer the shaft 42 is driven in one direction or the other during the return stroke of the main lever. Gearing with the shaft is a rack 43 raised or lowered by the finger lever to control the direction of rotation. The rack is driven in the return stroke by a pawl 50 carried by an arm rigid with the main. lever and adapted to engage a notch 50<1> in the rack until the pawl rides up a surface 51 to free the rack for spring return. To allow amounts on the grand totalizer to be transmitted back to the product totalizer a key may be set to slide the cam 40 to additive position prior to zeroizing the grand totalizer. To lock the lever 54, the main shaft 107 and the carriagespacing control key 88 during a transmission operation, a disc 96, Fig. 5, fast with lever 33 co-operates with a lever 94 so that during such transmission a detent 106 is raised to lock the main shaft and a lug 94a on the lever obstructs. the carriage-locking detent 104 linked at 90 with the control key 88. The lever 54 is also locked by a lug 97 on the lever 94 moving in front of a pin 98 on the link 60. Moreover, locking discs on the spindles 9, 22 of the two totalizers may also raise the lever 94 so as to lock the above parts as well as the main lever 33 during zeroizing of either totalizer.