Patent GB-1065019-A (GB)
Abstract: 1,065,019. Calculating machines. ING. C. OLIVETTI & C; S.p.A. Sept. 25, 1964 [Oct. 2, 1963], No. 39165/64. Heading G4B.  A ten-key calculating machine comprises a multi-order, storing device 81, a set-up device  for setting an amount in said storing device order by order, a cyclically operating set-up . mechanism for operating said set-up device at the depression of a key of the keyboard and a normally effective zeroizing means operable by said mechanism for zeroizing said storing device before operation of said. set-up device, said zeroizing means being adapted to be rendered ineffective after setting-up the first order of a new amount.  Zeroizing the set-up carriage.-The, set-up carriage 81 (Fig. 2) consists of a number of toothed sectors 82 rockable on a vertically movable shaft 83 carried by a bail 84 slidable ; along a square shaft 85. After depression of a key 11 the bail 53 is rotated anticlockwise and moves a link 197, Fig. 3, forwards (to the right in Fig. 3) together with a horizontal slide 200 .and a vertical slide 206. Movement of the slide 200 rocks an arm 235 the end of which moves a slide 224 (carried by a lever 227) to engage a projection 222 on a sector 219. The lever 71 is then swung anti-clockwise by the cam 74 and pivots the sector 219 by means of a link 216 having a pin 214 which has been pulled into the path of the lever 71 by means of a cam slot 213 in the slide 224. Movement of the sector 219 swings the lever 227 which is fast on the shaft 83 to which is also fixed a pair of arms 229 carrying a bar 226. This engages a projection 233 on each sector 82 and thus zeroizes the amount previously stored, a locking device 237 having earlier been released.  Entering a digit into the carriage.-Depression of one of the ten keys 11 causes a slide 12 to rock a latch 14 which releases a corresponding lever 23. Each of the tenlevers 23 hits a bar 28 and through a link 33 eng ages -a clutch 36 for one cycle of a shaft 37. A lever 41 is rocked anti-clockwise by a cam 38 and thus rocks a bail 46 by means of a link 42 to push the displaced lever 23 to the rear of the machine (left in Fig. 1) together with a corresponding slide 26. The lever 23 is thus re-latched and the slide 26 moves rearwards until a projection 54 comes into the path of a corresponding stop 56 carried by a shaft 57. The shaft 57 also carries a disc 58 provided with a notch 59 engaged by the end of a slide 61 and a pinion 76 engaging a rack 78. The rearward movement of the slide 26 moves a bail 53 anticlockwise and thus withdraws the slide 61 from the notch 59. A cam 74 rocks a lever 71 thus rotating a sector 67 through a spring 72 and a pinion 66, also secured to the shaft 57 until the appropriate stop 56 abuts the projection 54 on the slide 26. The rack 78 is thus moved rearward through a number of steps corresponding to the selected key. Thereafter, the shaft 85 is rocked clockwise thus engaging the highest order sector 82 with a second rack 80 attached to the rack 78. The rack 78 is now returned to its forward position rotating the sector 82 clockwise by an amount proportional to the value of the depressed key, and the carriage 81 is swung anti-clockwise, disengaging the sector 82 from the rack 80. Indexing the carriage.-The bail 84 movable with the carriage 81 is connected to a rack 92 in mesh with a pinion 95 carried by a shaft 96. The rack 92 moves in unison with a slide 132 through the shaft 96, bevel gears 126, 127 and a rack-and-pinion 131, 129. The slide 132 has series of teeth 137 engaged by a control sector 138 sliding on a shaft 134 and rookable with that shaft into and out of engagement with the teeth 137. After depression of a key 11 the link 197 moves forward as described above and operates through further links 116, 171, 168, 163, Fig. 5, and by means of another cam 184 on the main shaft 37 an arm 157 which rotates the shaft 134 thus releasing the sector 138 from its engagement with the teeth 137. This is urged to the left into its zero position by a spring 139. The link 171 is then moved rearwards by the cam 184, returning the shaft 134 and the sector 138 into an intermediate position in which the sector engages one of the teeth 137 and also a lug 142 on a horizontal slide 143, Fig. 2. Near the end of a cycle, a clutch 100 is engaged and the shaft 96 is rotated thus moving the carriage 81 and the slide 132 to the left, together with the sector 138 and the slide 143. This engages an arm 148 which acts to disengage the clutch 100 after one step of the carriage 81. Thus the second sector 82 is now under the rack 80. It is held in this position by a lever engaging a toothed wheel secured to the shaft 96. When a key 11 is depressed to set up the following denomination, the zeroizing means are rendered ineffective as described above, but the linkage 177, 168, 163, Fig. 5,operates under the action of the cam 184 to disengage the sector from the first tooth 137. The slide 143 then moves into the position shown in Fig. 2, since the spring 146 is stronger than the spring 139, thus moving the sector in front of the next tooth 137, and these are engaged when the lower part of the cam 184 comes into action. The position of the sector 138 thus indicates which denomination the last number has been entered into.  Preventing the zeroizing of a number already set up in carriage.-The link 197 is pin-and-slot connected with a lever 116 which starts in the position shown in full lines, but is pulled into the broken line position during the forward movement of the link 197. Thereafter, it stays in this position and keeps the end of the link 197 out of the path of the bail 53, thus preventing the zeroizing operations taking place during the setting up of other denominations. Transferring a number into the totalizer.-To transfer a number into the totalizer, an actuating key 307, e.g. an adding key, is depressed. This moves a slide 304 rearwards which acts through a lever 310 to restore the lever 116 into the position shown in full lines in Fig. 5. The carriage 81 is now rocked clockwise to bring the sectors 82 into engagement with racks 88, Fig. 2. As before, the sectors are zeroized by the bar 226 and so move the racks 88 rearwardly through proportional distances. During this movement the number set up may be accumulated in the totalizer. Afterwards, the racks are positively restored to their original positions by a cam-operated bar. During this movement tens transfer takes place. Near the end of the cycle the sectors 82 are disengaged from the racks 88 and are locked in position by the latch 237. The carriage 81 is then released and returns to the right as shown in Fig. 2, moving also the slide 132 and the sector 138, which thus indicates the previous transverse position of the carriage 81. If repeated adding or subtraction is to take place the carriage may be prevented from returning to the right and if it is desired to use the same number again, the actuating key may be depressed without setting up a number. In this case the carriage 81 is moved leftwards, the clutch 100 having been engaged, until the sector 138 strikes the slide 143 to disengage the clutch. The carriage is then in its previous transverse position. Second set-up carriage.-The machine is provided with a second set-up carriage, 313, Fig. 1, which may be used alone, or with the first carriage 81, to register a number, a manual control being placed in one of three positions to determine which carriage is to be used. An arm 377, Fig. 5, controls the angular position of a shaft 136 to which is fixed a sector (not shown) similar to the sector 138 and used to control or indicate the position of the second carriage. The other apparatus controlling this carriage is mostly similar to that already described The position of the lever 167, Fig. 3, controls the vertical position of the slide 206 mounted on the horizontal slide 200 and a projection 207 can be moved to strike either one or both of two pins 208, 351 on forward movement of the slide 200. If the pin 351 is struck then the second carriage is utilized.