Patent GB-255006-A (GB)
Title: Improvements in or relating to record-card-controlled statistical printing machines
Filed: 1925-02-04
Abstract: 255,006. British Tabulating Machine Co., Ltd., and Campbell, C., (Tabulating Machine Co.). Feb. 4, 1925. Statistical machines. - A statistical machine having printing mechanism in which the type-carrier rotates continually in one direction (as for example in Specification 204,676) is adapted to record and accumulate items, utilizing novel counter-actuating and zeroizing means. Further, at total-printing, there is an interconnection between the counter and the printing mechanism whereby the number corresponding to any counterwheel is printed at the moment the counter-wheel reaches zero on being reset. The invention is described embodied in the machine of Specification 254,761, the " 9 " perforation index-points of the cards passing the brushes first. The bevel wheel 68, Fig. 2, pinned to the shaft 65 is driven continuously from the motor and drives through wheel 160 the printing drum shaft 161, which is constructed as in Specification 204.676. When any magnet 165 is energized it raises a wire 166, Fig. 22, to rock a pawl 167 so that the wheel 172 raises the parts 167, 168, and 174 to rock the hook 163 and elevate the appropriate type-lever 162 of the column corresponding to the particular magnet 165, the parts being subsequently restored by a bail 176 on a shaft 177 coacting with the plate 179, Fig. 4. which is rocked by a cam 181 on the shaft 161. To render the printing-lever wires 166 inoperative during part of the total-taking operations, the upper ends of these wires are moved to one side of the parts 167 by means of a plate 232, Fig. 19, through which they pass. Actuation of counters. When any plate 168 is raised it elevates a wire 240 which, through a bell-crank 266, moves to the right, Fig. 10, a frame 261 carried on studs 267 and 268 so that the wheel 262 carried by the frame meshes with the counter wheel 263. The drive for the counter is as follows :-Upon rotation of a. clutch magnet the sleeve 69, Fig. 2, is clutched to the shaft 65 and drives, through gearing 245, 247, and 248, shafts 249 and 250 for five upper and five lower counters, the gearing being mutilated and having Geneva stop mechanism so that these shafts onlv 'rotate when the cards are under the brushes. The shafts 249, 250 are used for grandtotals and sub-totals respectively. Any counter may be withdrawn individually and bodily for inspection &c. The shaft 249, Fig. 10. has gears 256 each of which drives a wheel 257b which is yieldingly coupled by a spring-held pawl 258, Fig. 11, with a coaxial wheel 257<a>. This wheel 257<a> does not mesh with the wheel 256 but with a wheel 260 carried on the frame 261 and in mesh with the said wheel 262. The wheels 257<a> and 257<b> are both loose on shaft 259. Integral with each counter wheel is a single-tooth transfer wheel 264. Normally each counter wheel is locked by a pawl 265, but these are rocked out of engagement by the frame 265 when the wheels 262 are rocked into mesh with the counter wheels. As stated above, when a magnet 165 is energized by a hole in a card the appropriate wheels 262 and 263 are engaged differentially and the amount added to the counter, all the wheels 262 being disengaged at a definite fixed time in the machine cycle. The shafts 272, Fig. 2, connected by a link 273, are rocked once per card cycle immediately after the leading edge of a card reaches the brushes by means of a cam on shaft 93 ; each shaft 272, Fig. 10, thus raises through links 274, an arm 275 about a roller 276 in a groove in cam 277, now stationary. This raises a slide 280 which in turn rocks the arm 269 carrying the stud 268, thereby rocking the frame 261 clockwise to disengage the wheels 262, 263. Subsequently the bell-crank 266 is rocked counter-clockwise by a bail 281 to restore the frame 261 to normal position, as shown in Fig. 10. Printing totals.-Geared to the printing drum shaft 161 is a wheel 312, Fig. 8, which in turn is geared to the total-taking shaft 315, Fig. 4; further, the wheel 312, which is loose on shaft 236, has dog teeth 317 adapted to engage similar teeth on a member 318 rigid with the shaft 236. Normally the parts 312, 318 are separated by a block 320, but upon energization of the totalclutch magnet 323 its armature 322 withdraws the block 320 and clutches the wheel 312 to the shaft 236. The printing drum, shaft 236, and shaft 315 therefore turn concurrently. The clutch 317, 320 is of the one-revolution type permitting shaft 236 to make one rotation only. Below the magnet 323 is a grand-total controlling magnet 908 the attracted armature 326 of which raises a splined clutch sleeve 327 so as to couple the shaft 315 through clutch 328 with the main-groupcounter cam-shaft 329. When this magnet is deenergized the sleeve 327 engages the clutch 330 to drive the sub-group-counter cam-shaft 331. The shafts 329 and 331 carry the cams 277 mentioned above. The automatic inter-action of the various magnets is as described in Specification 254,761. During total-taking from the upper counters the shaft 272 is stationary and shaft 329 rotates with cam 277 whereby the lever 275 is rocked about the point 275a elevating the slide 280, and rocking arms 269 clockwise together with the frames 261. At the same time a cam 332 on shaft 329 rocks a bell-crank 333 to move bell-crank 266 clockwise, further rocking the frames 261. Subsequently slide 280 is moved down by cam 277 and the frames 261 are rocked about the points of meshing of the wheels 260, 257a, thereby throwing the wheels 262 into gear with their counter-wheels. Meanwhile the counter-shaft 249 (or 250) is at rest. The sleeve 69 being next clutched to the shaft 65, Fig. 2, the counter-shaft 249 (or 250) rotates and re-sets the counter wheels to zero. The wheels are arrested at zero bv each single tooth 264 contacting with a pawl 335 which is moved into its path. This pawl is linked to a lever 338 operated from the cam-shaft 329, this lever 338 also, through a pin 390 and a yoke 391, carrying a bail 374 into position to look the appropriate transfer latch 303 against tripping. The lever 338 is also used to control contact devices in total-taking circuits. A link connected to the lever 338 normally presses upwards on a bail 343, Fig. 10, and raises a member 343<a> clear of the gear wheel 257<a>. The member 343<a> has an insulating finger 344 which when normally raised, opens contacts 345<a>. At totaltaking the member 343<a> is lowered and rests on the teeth of wheel 257<a>. In series with this are contacts 346, Fig. 18, controlled, by a wheel 349 on shaft 250, the two devices being slightly out of phase so that as the wheels rotate at zeroizing the circuit 350 is broken, but when the counter wheel reaches zero the two devices become in phase, contacts 345<a> and 346 are both closed and the circuit 350 energizes the appropriate magnet 165 to elevate the correct type lever 162 at the moment the counter wheel reaches zero. There is a wheel 257<a> for each counter wheel but only one wheel 349 for each counter unit of nine wheels. Specification 183,867 is referred to. Transfer mechanism.-The transfer tooth 264, Fig. 13, on each counter-wheel 263 wipes past the toe of a plate 300 pivoted at 301 so that a notch 302 in this plate releases an arm rigid with a latch 303 which thereby rises until arrested by a bail 374. Pivoted to each latch is a plate 305 having a tooth 306 co-operating with the next higher counter wheel and having also a slot coacting with a pin on a frame 308, so that, when the bail 374 is removed to permit all released latches to rise fully, each corresponding plate 305 is raised by its latch 303 and the pin on the frame 308 causes it to move out to the right and then in to the left so as to dear the teeth on the counter-wheel of next higher denomination and then to settle in between two teeth thereof. Subsequently the frame 308 is lowered from shaft 307 to draw down the plates 305, thus performing transfer. The bail 374 is operated by shaft 307, frame 308 and parts 371, 372, 372a.