285,885. Burroughs Adding Machine Co., (Assignees of Pasinski, W. J.). Feb. 25, 1927, [Convention date]. Adding and subtracting apparatus with several totalizers; printing totals and sub-totals.-A bookkeeping machine of the Burrough's type as described in Specification 274,411 instead of having a single lower counter is provided with a plurality of such additional counters on which the amounts .deposited, the negative totals, and balances as well as the amounts withdrawn may be accumulated, the counters being selectively set for actuation by means under the control of the papercarriage. Additional counters. The pinions 70, Figs. 2<a> and 3, of these counters are arranged on a sleeve 71 carried by a shaft 72 in groups of denominational units the sleeve being adapted to be moved longitudinally to position a selected counter in alignment with the extensions of the actuator racks. An aligning plate 73 with slots 74 opposite the racks is provided to prevent actuation of the counters other than the one selected. A single transfer mechanism is provided for all these counters and its parts are similar to those described in the above mentioned Specification; the transfer segments 120, Fig. 18 are initially set by the trip lever 130 releasing the detent 123 so as to engage the arm 132 of the segments with a restoring bail 133. Subsequently the bail is lowered to effect the transfer movement, control being effected by latches 138, 139 and a projection 137 on an extension of one of the arms 135 carrying the bail 133. The bail 133 is .operated by a spring 149, Fig. 20, connected to an arm 150 secured to the shaft 136 carrying the arms 135 and to an arm of a bell-crank 148<a> loose on the shaft 136 and operated by a link 147 pivoted to an arm 145 rocked by an arm 143 on the shaft 100. The link 147 has a pin and slot connection with a bell-crank 148<a> normally made rigid by means of a dog 152 pivoted to the link at 153, a tail 156 engaging the. connecting pin 157. This connection is for the purpose of preventing movement of the bail during total-taking operations; an extension 159 on the shaft of the totalizers is adapted, when the shaft is moved to engage the selected totalizer with the actuators, on the forward stroke, to rock the dog 152 to free the pin 157 and permit an idle movement of the link 147. Additional counters, engagement and selection mechanism. The means for moving a counter into and out of engagement with the actuators in timed relation with the operation of the machine is similar to that described in the above mentioned Specification and comprises a yoke member 81, Figs. 2<a>, and 20 slidable on a shaft 80 with an extension having one-way pawls 85, 86, co-operating with cam-arms secured to a rock shaft 800, the arms being disposed in different planes. The shifting of the yoke 81 is effected by a bell crank 101 engaging the lower end of a lever 102 connected to a setting or control lever 104 and movable from a central adding position to a forward or rear position for total and subtotal operations. The longitudinal movement of the sleeve 71 to select a counter is controlled automatically by the paper carriage. Adjustably secured to the carriage is a stepped bar 230, Fig. 8, and in contact therewith is a roller on an arm 236 of a yoke member pivoted on a shall 237. To another arm 238 of said yoke is attached one end of a spring 239 connected at its other end to a lever 240 loose on the shaft 237 and in contact at its lower end with a roller on an arm 243 secured to a spring controlled shaft 75. Another arm on the shaft 75 is connected by a universal joint 76 to a clamp 77 adjustably mounted on the sleeve 71. The shaft 75 is normally locked by means of a dog 245 engaging a tooth of a sector 246 fixed to the shaft. At the beginning of a forward stroke the shaft 75 is unlocked by the cam surface 250 on the operating member 813 engaging the one-way pawl 248 pivoted to the dog. In the clockwise movement of the arm 236, i.e. on the movement of the totalizers from right to left the spring 239 is expanded whilst the shaft 75 is locked and upon it being unlocked the spring pulls the lever 240 to move the shaft to its new position. To prevent unlocking of the shaft 75 during total or sub-total taking operations the bell-crank 101, operated by the control lever 104 to set the yoke 81, is provided with an extension 253 carrying a stud operating in a slot on an arm of a bell-crank 255 the other arm of which is engaged by a pin on a pivoted cam plate 257. The cam 257 engages a pin on the pawl 248 and when the control lever 104 is moved to total or sub-total position is operated to withdraw the pawl 248 from the path of the surface 250. In the machine shown the bar 230 is provided with four steps for the totalizers Nos. 1, 3, 4 and 6, the totalizers Nos. 2 and 5 being for negative totals. When a negative total is taken the subtraction lever 30 is moved to subtraction position and the rear end of the link 55 connected thereto rocks, by means of a pin and slot connection 260, an arm 261 pivoted on the shaft 262, Fig. 1. The pin 260 extends into an opening in an arm 263 of a yoke 264, Fig. 14, having an upwardly extending bifurcated portion with cam surfaces 265, 266, adapted to cooperate with a stud 267 on a lever 268 pivoted on the shaft 237. A stud 269 on the opposite side of the lever 268 extends between the arms 238, 240, Fig. 8. The Nos. 1 and 6 totalizers are used for " old " and " new " balances respectively and when the carriage is in one or other of these positions the stud 267 is in contact with one or other cam surface 266, 265, so that when the subtraction lever 30 is moved to take a negative total off the upper totalizer the rocking of the yoke 264 effects a movement of the lever 268 and thereby a. movement of the lever 240 to move the totalizer shaft to align the No. 2 or No. 5 totalizer with the actuator racks. If the No. 3 or No. 4 totalizer is in alignment and the subtraction lever 30 is moved this has no effect on the control since the stud 267 is in the space between the cam surfaces. The yoke 264 is also under the control of a " withdraw " key 280, Fig. 28, which overlies the starting bar 281 and when depressed rooks a shaft 283 one arm 284 of which operates the link 32 associated with the subtraction lever, and another arm 287 of which by means of a link 288 operates the yoke 264 and controls the movement of the lever 268. If the lever 268 is in any of its intermediate positions a subtraction operation on the upper totalizer will cause the amount to be added to the corresponding lower totalizer; if however, the lever 268 is in the No. 1 or No. 6 position depression of the key 280 will shift the lever and the amounts subtracted will be added to the No. 2 or No. 5 totalizer. Printing characteristic symbols. The arm 268, Fig. 8, is provided with an extension 298 engaging a projection on a link 299, Fig. 27, pivoted to a lever 300 connected by a link 301 to a yoke member loose on a shaft 303. The yoke member carries a stepped segment 296 co-operating with a special type bar 290 operated under the control of an arm 294 on a rock shaft 600. The shaft 800 through a link 306, arm 307, and stud 308 actuates the lever 300 to effect the return of the stepped segment to normal position. If it is desired not to print a special character when an item is non-added in a lower totalizer the lever 183, Fig. 27, associated with the non-add key through a link 311 operates a yoke 313 to position a pin 315 thereon beneath the branch 317 of the link 301 to prevent its downward movement. Total and sub-total-taking on lower totalizers. When taking a total on any of the lower totalizers the control lever 104 is used in conjunction with the usual total-key and sub-total key means being provided for disabling the control of the upper totalizer by said keys. As shown in Fig. 23 the lever 104 has a pin working in the slot of a bellcrank 211 to the arm 212 of which is connected a link 213 co-operating with the link 63, associated with the totals key 60 and sub-totals key 65 in such a manner that when the lever 104 is shifted the link 63 is moved to position the long slot therein in the path of the pin 62 on the totals key bell-crank 61 and render the keys ineffective. Interlocks. When it is desired to take successive totals from the different lower totalizers a spacing stroke is necessary between successive depressions of the totals key. The bell crank 61 carries a pin 222 adapted to move downwardly on either side of a projection 221 on the link 213. Pivoted on the link is a locking dog 222 cooperating with a latch 224 the two members being connected by a spring. With the lever 104 in total-taking position depression of the key 60, through the pin 220, will effect the release of the dog 222 so that when the key is released the end of the dog will move under the pin 220 and prevent a second depression. The control lever 104 is then shifted to central position and the carriage shifted to select another totalizer. The lever 104 in its central position permits the total and sub-total keys to control the upper totalizer as in this position the link 213 has been moved so as to place the projection 221 in rear of the pin 220. During the spacing stroke an arm associated with the usual restoring bail effects the return of the dog 222 to engage the latch 224.