Patent GB-699815-A (GB)
Title: Improvements in statistical card controlled machines
Inventor: WOCKENFUSS WILLIAM
Filed: 1950-12-19
Abstract: 699,815. Typewriters &c. BURROUGHS ADDING MACHINE CO. Dec. 19, 1950, No. 30962/50. Class 100(iv) [Also in Group XIX] In a tabulating machine including a transfer unit for transmission of statistical card data from an analyzer to recording or registering members, the unit comprises a carrier containing elements (e.g. movable pins, each including first and second cooperating sections, the first sections extending through vari-sized openings in a set-up plate which is arranged to determine which of the first sections are located in normal and operative positions respectively. General arrangement. The tabulating machine described comprises a card analyzing section including two sensing stations 79, 81, Fig. 4, for detecting a change in group designation, the second station 81 controlling actuating bars 136, 137, Fig. 21, which operate type-bar-control bars 146, 156, through pins 134, 135 of upper and lower transfer units 132, 133 respectively in a printing and accumulating section, Fig. 8, separated from the analyzing section by a wall 35. Each type bar 147 has a lower extension 325 carrying racks for actuating group total and grand total accumulator units 191, 192 from which totals are taken upon a group change, and at the end of a run of cards respectively. Each accumulator unit may be set to an add, subtract or neutral position through pins 209 of an auxiliary section of lower unit 133 (see Group XIX). The unit 132 also has an auxiliary section including pins 185 whose functions are described below. Transfer units. Each unit 132, 133, Fig. 8, may be slidably removed from the machine. Fig. 22b shows part of the auxiliary section of the lower unit 133; the unit comprises upper and lower sets of apertured plates 187a, 187b, which support upper and lower sections respectively of the transfer pins such as 209. The lower pin sections are normally inclined, due to the elongated openings in the upper plate 187b, and are brought to the vertical operative position or not according to the size of the openings in an exchangeable set-up plate 187. The upper unit 132 is of similar construction comprising a set-up plate 177. Card feed. Cards are fed from a magazine 66 and discharge into a compartment 36 in a manner generally similar to that described in Specification 694,881 (see Group XIX). Sensing and analyzing mechanism; card control of transfer units. At each sensing station 79, 81, Fig. 4, pins 110 or 111 are raised through pins 104 of a vertically reciprocating pin box 103 or 103a respectively in a manner generally similar to that described in Specification 694,881, and the raised pins 111 control the rocking of pawls 223 to actuate slides 225, levers 226 and actuating bars 136. The station 81 also includes shorter pins 112, corresponding to the " X " positions in a card, Fig. 20, which control bars 137 only, the extensions 113 rocking bail-operated interposer levers 145. The presence of a card at a station 79 or 81 is detected by mechanism (not shown) which operates a switch 131g or h, Fig. 26. Group control mechanism. If the designations of the cards at stations 79, 81, Fig. 4, are different in any column, pawls 223, 222 will operate slides 225, 239 and levers 226, 241 successively. Thus a double rightward movement is imparted by pawl-carrying bell-cranks 243, 244 to a slide 247, Figs. 4 and 21, having recesses 250, 251 for receiving spring-urged levers 252, 253 normally held away by a rocker member 267 engaged by a projection 266 on a manually operated slide 262. If slide 262 is moved to the left by its key 263 the lever 253 is allowed to engage the recess 251 and the double movement of the slide 247 will rock the lever-carrying arm 255 and shaft 257 thus closing a switch 237, Fig. 26, to initiate a total-taking cycle. Similarly, rightward movement of a slide 262 will release the corresponding lever 252 for operating a switch 238. The provision of two switches and the selective operation of slides 262 enables totals to be taken independently for separate card fields (called A and B totals) at times when the designations in selected card columns change. Printing section; type bar control. As a bar 136, Fig. 21, is moved leftward at a time determined by the position of a raised pin 111, it raises, through links 139, an associated bar 140; and as a bar 146 is raised through an operative pin 134 it releases a spring-urged pawl 148 which then engages a tooth 150 to arrest the associated vertically moving type bar 147. Each bar 146 is connected by links 151 to a spring-controlled restoring bar 152. The bars 137 similarly cause bars 156 to release pawls 157 at such a time as to prevent any upward movement of the type bars. This upward movement is effected by spring-urged arms 328, Figs. 8 and 22, engaging extensions 325 and controlled by a bail 351 connected by links to a shaft 334 which is rocked through link work 338-340, Fig. 10, by cam 335 on a shaft 50, Fig. 4, coupled to the main shaft 44 through a one-revolution clutch 51 operated by a print solenoid 51a, Fig. 26. The type is aligned by pawls 327a rocked into engagement with the bars 147 after they have been raised to the printing position. The pawls are carried by a bail 325a on a shaft 326a, Figs. 8 and 10, rocked by a cam on a shaft 176a geared to shaft 162 which is driven by shaft 50. The shaft 162 is also geared to a cam shaft 321 which controls print contacts 323a-f, Figs. 26 and 27. The paper feed mechanism associated with platen 468 is controlled by a solenoid 540. Printing mechanism; controlling printing of zeros. A spring-urged hammer 466, Figs. 8 and 21, for each type bar 147, is normally held by the extremity 486 of a plate 485 on which is pivoted a zero elimination control lever 484 carrying a spring latch which engages one of three teeth on the plate, normally the middle one as shown. The hammers are released by a bail 478, operated by bell-cranks on a rock shaft 476 controlled by a cam on shaft 176a, Fig. 10. Provided a bar 147 has been raised to allow a spring-urged lever 481 to rock clockwise and pull down an interposer 480, the bail engages the interposer to cause its projection 483 to move plate 485 rightward by engagement with either the lever 484 (for the zero printing position) or a plate projection 489 (for other type bar positions). The hammers are restored by a cam-operated bail 470, and the plate 485 by a bail 487 attached to spring-returned bail 478. If zero elimination to the left or right of a significant digit is required the levers 484 are manually set in their lower or upper positions respectively relative to the plates 485 thus bringing them out of line with the projections 483 and, at the same time, bring- ing into register co-acting lugs such as 491, 492 on consecutive levers and plates so that zero printing is effected automatically on the other side (right or left) of the significant digit. To prevent the release of a hammer, the downward movement of the associated interposer 480 is prevented by a detent 495 moved into a recess 497 against a spring by the oscillatory movement of a bail 499 if the associated freely mounted key 498 has been manually operated to engage its pin 500 in detent notch 501. The bail 499 is connected by links to a rock shaft 502, Figs. 8 and 10, controlled by a cam 504 on shaft 176a through clutch mechanism including the cam follower 505 which carries a pawl 512 connected by a spring to a plate 508 fixed to the shaft 502. Normally the pawl engages the plate to rock the shaft but, during total-taking, a solenoid 514, Figs. 10 and 27, rocks a bell-crank 515 to trip the pawl, thus preventing operation of the bail 499 and allowing all the hammers to be fired. Auxiliary control section of upper transfer units. The transfer unit 132, Figs. 8 and 28, has, in addition to the main portion controlled by a card such as 178, an auxiliary section comprising pins 185 actuated by special function bars 179-184 through associated bars 186 (similar to 140, Fig. 21). The bars 179, 180 and 182-184 are actuated by a cam 280 on the shaft 162, Fig. 10, which rocks follower lever 283 and a plate 287 supported on parallel links 288 which plate directly operates the bar 182 at the beginning of each cycle to eliminate certain type bars 147 pre-selected by set-up plate 177. Bars 180, 183 are normally operated by the plate 287 by interposers 317, 318 to suppress other type bars for printing A and B group code designations except during the first cycle following a group total-taking when the or each interposer is withdrawn by the associated solenoid 315, 316, Figs. 10 and 27. Bars 179, 184 are operated only during an A or B group total-taking cycle to suppress the unwanted type bars (B or A), normally inoperative interposers being raised into alignment with the bars by solenoids 308, 309, Fig. 27. The bar 181 which is used to control the printing of " T " or " G " beside a group and grand total respectively is actuated by cams 282, 281 and follower levers 285, 284. The levers rock a bar-engaging arm 291 through.interposers 297, 296 slidable thereon which are raised to operative position by group and grand total solenoids 305, 301 respectively, Figs. 10 and 26. Operation; circuit diagram. To start operations, switch 516 is closed to operate drive motor 47, Fig. 27, and start key 131a, Fig. 26, is depressed and held down for two machine cycles during which cards are fed to station 79, 81, Fig. 4, thus operating switches 131g and h and reversing the contacts shown. Key 131a energizes relay 521, and feed solenoid 59a through cam-controlled contacts 65a, which solenoid is held after the key is released through two circuits comprising contacts 521a, 521b, the latter circuit comprising also contacts of stop key 517. As a result of comparing a card at station 79 with no card at station 81, the group control switches 237, 238 will be operated to energize relays 523, 530 and 524, 529 thus initiating a tota