Patent GB-348105-A (GB)
Abstract: 348,105. Calculating-apparatus. ELLIS ADDING-TYPEWRITER CO., 388, Elizabeth Avenue, Newark, New Jersey, U.S.A.-(Assignees of Ens, E. J.; 240, Sunset Avenue. Newark, New Jersey, U.S.A.) Dec. 2, 1929, No. 36864. Convention date, Dec. 1, 1928. [Class 106 (i).] Adding and subtracting apparatus with several totalizers; printing totals.-In a machine with a plurality of totalizers and a travelling carriage the control of addition in the totalizer is effected automatically by the tabulating movement of the carriage and the operating mechanism for taking totals is conditioned by the operation of total keys individual to the totalizers. Bv this means the number of operation keys controlling the different functions of the machine is reduced to a minimum comprising a total key for each totalizer, an error key, a repeat key, a subtraction key, a subtotal key, and a non-add key. The taking of a subtotal from any totalizer is controlled by the depression of the subtotal key and of the corresponding totalkey. Means are also described for transmitting the amount standing on a particular totalizer to another totalizer and for printing a distinctive mark against the totals and subtraction items printed. The invention is shown applied to an Ellis machine as described in Specification 28253/08, [Class 106, Registering &c.], and comprises two additional totalizers, Fig. 1, mounted on a frame 2 detachably connected to the frame 1 of the main totalizer and actuated by auxiliary racks 8 detachably connected by pins 9 and flat springs 10 to the main racks 5 the whole being guided on bars 11 and plates 12. The totalizer engaging mechanism comprises the usual connecting-rods, flying levers, and operating plates, the operating plates being interconnected by a cross-bar. The latches controlling the addition operation are operated by hanging-bars 45 .. 48, Fig. 9, mounted on levers 49 .. 52 pivoted to the machine frame, the levers having upstanding ends for engagement with the adjustable stops on the carriage rack-bar. A stop on the carriage is adapted to co-operate with a lever 60 connected by a cross-bridge 61, lever 62, link 63, and arm 64, to a shaft 65 having an arm 66 which operates to lock and unlock the starting-bar when one of the stops is in position to co-operate with the levers 49 .. 52. In addition to the sets of total cams and cam levers associated with the main totalizers, sets of similar parts are provided for the auxiliary totalizers. On operation of the machine after the depression of one or other of the total keys 77 .. 80, Fig. 10, a total is taken by the usual mechanism from the corresponding totalizer. In subtotal taking operations the subtotal key 82 as well as one of the total keys must be depressed the release bars associated with these keys being operated at the end of the forward stroke through the action of a pin on the operating plate to free the depressed total key and permit the totalizer to remain in engagement during the return stroke. By depression of the subtraction key 81 the upper main accumulator is set for subtraction regardless of whether addition is being performed in any or all of the remaining totalizers. The repeat key 76 co-operates with a latch 108 associated with a pair of bars 103, 106, which when the key is depressed are displaced to position a pin x under a latch bar 114 and prevent its operation to release the depressed keys. The auxiliary bar 106 has an angular part 106A for engagement with a pin 110, Fig. 14, on the total cam for the No. 1 totalizer and is provided on the rear end with a pin 113 extending under the total cam of No. 2 totalizer. This pin 113 engages a slot in the forward end of a lever 111 having a floating pivotal mounting on a pin 112 and connected at its rear end to the hanging-bar 46 of the lower main totalizer. Depression of the total key 77 for the upper main totalizer after depression of the repeat key 76 rocks the lever 111 to free the controlling latch 26 under which condition when the machine is operated the total taken from the upper main totalizer will be transmitted to the lower totalizer. The floating mounting allows the lever 111 to shift to prevent similar action on depression of either of the total keys 78 or 79. By this arrangement the totalizers may be used in a variety of ways. Thus, e.g. with a No. 2 stop in position and the total key 77 depressed the total on No. 1 totalizer will be transferred to No. 2 totalizer ; with No. 4 stop in position and total key 78 depressed No. 3 totalizer will be cleared and the amount transferred to No. 4 totalizer; with stops No. 3 and No. 4 in position the taking of a total from No. 1 will result in the amount from No. 1 totalizer being added in Nos. 3 and 4 totalizers ; with a No. 1 and No. 4 stop in position and total key 80 and subtract key 81 depressed, the total on No. 2 totalizer will be cleared and subtracted from No. 1 totalizer and added in No. 4 totalizer. Distinguishing marks.-The total keys and subtraction key as shown in Fig. 8 co-operate with a differentially movable cam bar 109 operatively connected to a symbol printing sector 124 mounted on an arm 125. An alining latch 126 pivoted on a frameplate 127 co-operates with a pin on an arm 129 pivoted to the plate 127 and carrying a pivot 130 for the links 122, 123. An arm 133 on the operation of the printing shaft 134 frees the latch 126 which under the action of spring 131 moves to receive the pin on the arm 129.