Patent GB-191509738-A (GB)
Title: Improvements in Calculating Apparatus.
Inventor: SIMONE MICHELE GUGLIELMO DE
Filed: 1915-07-03
Abstract: 9738. Simone, M. G. de. July 3, 1914 [Convention date]. Calculating - apparatus; adding - apparatus. - Apparatus for analysing the items of a wages list into certain specified coins, namely, ten, five, two, and single dollars, and fifty, twenty-five, ten, five, and single cents, comprises three sets of indicators 3, 4, 6, Fig. 1, the first set showing the coins corresponding to the value of the keys depressed and being brought back to zero afcer each operation, the second set showing the total number of the coins indicated on the first set, and the third showing the total value of the coins indicated by the first two. Four steps of movement are allowed for the unit-cents indicator, and two for the tencents and two-dollars indicators, the others being allowed one only. The keyboard is provided with nine keys for the unit-cents, tens of cents, and unit-dollars, and with five for the tens of dollars. Printing-means may be provided, and the second and third indicators can be set to zero when desired. Interlocking means between the keys of each set are provided, comprising angular projections 22, 25 arranged as shown in Figs. 15 and 16, and adapted to co-operate with slotted spring-retracted slides 29, 30. Normally, the projection 22 is engaged in a slot 28 in the bar, but, when depressed, the projection 25 first moves the slide 29 and then the slide 30 to the right, the latter being retained in that position to lock all undepressed keys by moving under the projections 22, and the former returning to lock the depressed key down. All depressed keys are released after the rotation of the operating- handle 5 through a cam 450, Fig. 52, on the operating-shaft 341, which rocks a lever 451 bearing a link 453 held in engagement with a lug 454 on a shaft 456. Movement of this shaft causes a series of lugs 457 thereon to move the slides 29. A repeat key 9 disables the link 453 by lowering it through a link 461, which rocks a bell-crank lever 463 and depresses the link 453. An error key 19 connected by a link 466 to the lug 454 moves all the slides 29 when depressed. Analysis mechanism. Motion is communicated from the keys to bell-crank levers engaged by pins on the keys, these levers being arranged in linked groups, and keys of higher value being adapted to actuate two or more of the lower linked groups. In the unit-cents bank, the levers 53, 47, Fig. 10, of the one and two cent keys and the levers 65, 66, Fig. 11, of the three and four cent keys are connected by links 53, 69 respectively. The six and seven cent keys operate respectively levers 90<1>, 91<3>, Fig. 10, connected to the link 55 of the one and two cent keys, and levers 90<5>, 91<5>, Fig. 12, pivoted to the link 92 of the five-cent lever 80. Similarly, the eight and nine cent keys operate levers 92<3>, 93<4>, Fig. 11, and 92<5>, 93<5>, Fig. 12. Corresponding arrangements are made for all the other banks of keys. Differential actuation between two linked keys is produced by varying the slope of the upper arms of the levers, thus causing part of the movement of the lower key to be inoperative and the lever of the higher key to have a greater throw, One lever of each linkage is provided with a notched extension adapted to engage one of a number of levers in the analysis mechanism, which is so arranged as to cause the proper indication to be exhibited, no matter in what order the keys of different banks are depressed. In the case of the unit-cents keys, the notched part 49, Fig. 10, acts on a lever 51, Fig. 40, capable of movement into two positions 51<1>, 51<2>, and the notched part 71, Fig. 11, engages a lever 73 moving in the positions 73<3>, 73<4>, both of these levers being connected by pin-and-slot devices to a slide 58 adapted to move the indicator through four steps, giving indications of from one to four cents. The slotted part 81, Fig. 12, engages a lever 83, capable of one movement only to operate, through a spring catch 84 and a pin 86, the five cent indicator operating slot 87. In the tens of cents bank of keys, the six, seven, eight, and nine keys are connected to the five key, and to the keys one, two, three, and four respectively, their bell-crank levers being so connected that the keys one and six, and two and seven operate levers 103, 112 serving to move the tencent indicator slide 106 through one and two steps respectively. The three and eight keys rock a lever 119, which is connected by a link 120 to a lever 121 serving to operate the twenty-five cents indicator slide 124. A pivoted catch 125 also serves to connect the lever 119 to the five-cent indicator slide 87. The four and nine keys rock a lever 133 connected by a link 134 and a lever 135 to the twenty-five cent slide 124, by a link 138 and a lever 139 to the ten-cent slide 106, and by a pivoted catch 145 to the five-cent slide 87. In addition, the five to nine keys rock the fifty-cent slide through a lever 153. The operation of the analysing - mechanism, supposing the keys for twenty-five cents to have been depressed, is as follows. The lever 112 is first moved to show two on the ten-cents indicator. Such a movement rocks, through a link 253, a floating lever 250 to bring the bottom of a slotted arm 255 against a pin 256 on the twenty-five cent slide, and also lifts a pin 251 on the other end of the arm 250 to the top of the slot 252 in a link 245 carried by the five-cent lever 83. The movement of the lever 112 in moving the ten-cent indicator to show two also lifts a pin 247 carried by the catch 113 to the end of a slot 246, so that when the five key in the cents bank is depressed to rock the lever 83, the catch 113 is withdrawn from the pin 115 to allow the ten-cent indicator to return to zero, and the lever 250 is rocked to move the twenty-five cent slide 124 to the indicating position. Actuation of the five-cent indicator is prevented by a slotted arm 240, which is lowered by the lever 112 through links 244, 243, thus bringing the top of the slot against a pin 242 on the catch 84, so that on the movement of the lever 83 due to the depression of the five-cent key, the catch 84 is moved away from the pin 86 of the indicating-slide 87. This result is achieved in whatever order the keys are depressed, and similar arrangements are made for all the keys. Actuation of indicators. The various indicatoractuating slides are pivoted to bell-crank levers 320 connected by links 324 to spring - retracted indicating-disks 343, Figs. 45 and 49, mounted on sleeves loose on a shaft 326. The disks are held in the indicating position only so long as their respective actuating-slides are raised, and return to zero as soon as these are lowered, whether during the process of analysis or by the release of the keys on the rotation of the handle 5. Totalizers for coins required. Whatever indication is shown on the first series of indicators is conveyed to the totalizers on the operation of the handle 5 mounted on the shaft 341. To each indicator is secured a disk 325 having steps equal in number to the indications thereon. Rotation of the cam shaft 341 allows fingers 332 carried by pivoted spring-controlled sectors 333 to descend until stopped by the disks 325, the movement being conveyed by teeth on the sectors to pinions 342, Fig. 45, which drive counters 356 through ratchet gearing. Total-value counter. The total value of the various coin indicators is shown on a single counter operated by toothed sectors 383, Fig. 49, bearing fingers 380, which co-operate with stepped disks 355 carried by the pinions 342, the movement of these sectors being also controlled by the cam shaft 341. Teeth on the sectors engage pinions driving, through ratchet gearing, sleeves which also operate the corresponding drums of the total-value counter through ratchet gearing. The sector 383, Fig. 45, of the unit-cents drum rotates a pinion 386 driving, through ratchet and spur gearing, a sleeve 393 bearing a wheel 395, Fig. 46, engaging the wheel 395 of the unit-cents drum 397. Similar arrangements are provided for the remaining drums, two sectors being operated in the case of the twenty-five cents drum. Transfer mechanism.-The disks 356 of the coin totalizers bear wheels 359, Fig. 45, engaging similar wheels 360 loose on a shaft 363, on which are formed projections 361 engaging star-wheels 362 on the higher disks. Spring - controlled arms engaging the star-wheels are provided for positioning purposes. In the value totalizer, a similar mechanism is employed, except that ratchet devices are inserted between the star-wheels and the drum to allow independent rotation during the summation process. Zeroizing - mechanism. - The coin and value totalizers may be set to zero by means of milled heads 7, 8 mounted on the transfer-pinion shafts 363, 394. Secured to the shafts are collars 365, Fig. 50, on which are mounted pawls 367 normally forced outwards by springs 368. On rotating the shafts, the pawls engage pins 369 on the transfer pinions and through these return the drums to the zero position, which is defined by springs 371 engaging flats on the shafts.