396,679. Cash registers. LINDVALL, S. E. and BILDE, T. E. D., 4, Karlsviksgatan, Stockholm. Nov. 5, 1931, No. 30683. Convention date, Nov. 6, 1930. Void [Published under Sect. 91 of the Acts]. [Class 106 (i).] Tablet indicators.-In a key set and operated machine the tablets of each denominational group are selected and raised by mechanism common to the group. The amount keys 6, 7 pivoted at 8 are adapted when depressed to lower a respective stop-rod 23 against the action of its spring 22, and thus place its lower end in the path of a stepped plate 17 urged rearwardly by a spring 19 when a common bail 10 on the shaft 11 is lowered by any of the keys. Extending from the stepped plate is an arm 25 engaging between flanges on an axially slidable rod 29 bent at right-angles at its rear end to form a selecting and elevating arm for the tablets of the corresponding group. Upon full depression of the key therefore the rod is shifted axially to an extent depending on the key value, and the bail 10 at the end of its descent then depresses a rack 40 to rotate a pinion 32 and through a slotted bail 35 engaged by a pin 37 on the rod, rotate the latter to lift the selected tablet. Axial movement of the rod is prevented by a bar 43 engaging a groove in the rod unless a key in the group is actuated. Keys may be depressed only half-way and then held by a detent 65 pivoted with lost motion on a shaft 63. In this position the stop-rods are lowered to effective position so that when a key finally is fully operated the stepped plates will be correctly stopped. In this complete key depression a pin 74 on a common bail 71 slides down a groove 75 in a lever 64 fast on shaft 63 and on the return stroke rocks the lever clockwise to release the keys from the detents 65. The shaft 63 may also be rocked by use of an error key 76. The tablets are shouldered at 55 to be held raised by a detent bar 56, one for each group. If it is desired to release the exposed tablets a drawer-release key may be depressed to rock an arm 62 and thereby push the link 58 to the right to remove all the bars. To prevent too rapid an operation of the indicators, the rod 29 may receive its rotation on the return stroke of the bail 10, a hook on which seizes a pin on the bail 35 to rock this on the up stroke. Full stroke of the shaft 11 is insured by an arm 77, Fig. 6, carrying a spring-controlled pin 80 bevelled to engage the axle of a roller 82 running on an arcuate track 83. The end of the arm is curved to lock against the roller if reversal is attempted during the stroke, the pin passing to the other side of the axle only when the ends of the track are reached. The differential movements of the stepped plates 17 may be transmitted to a totalizer through sectors 86 and the shaft 11 and nested sleeves thereon.