277,323. National Cash Register Co., (Assignees of Goldberg, M. M.). Sept. 7, 1926, [Convention date]. Statistical machines. - Relates to record-controlled machines of the type described in Specifications 184,824, 185,071, 221,134, 221,162, 221,163, and 221,167, wherein a detail record is analyzed, a printed and perforated summary record is obtained from the data accumulated on the totalizers, the summary records are analyzed and a printed grand summary record is compiled. According to the present invention, means are provided for analyzing data divided into a greater number of groups than the number of totalizers. The record-strip is adapted to be fed through the machine several times in opposite directions without being removed, one of said groups being manually selected for each direction of movement. In this manner the machine is enabled to deal with a classification of 2 groups each subdivided into 10 groups each of 100 classes; it may, however, be set to deal with a single group of 70 classes. The machine is provided with 100 totalizers so that after each complete traverse of the record-strip the totalizers must be cleared by the operation of the machine after the manual .adjustment of a timing control shaft thereby producing a summary record of the data thus analyzed. The totalizers can be cleared in a predetermined order or any one at a time by the adjustment of a mechanical selector. In order to save time in operation a long and short cycle control mechanism is provided by means of which the record-strip is continuously fed past the analyzer unless the data belongs to the group selected, when it is stopped to permit the data to be analyzed. A modified form of machine in which cards are employed is also described, the cards for a particular selection being sorted from the remainder after being analyzed so that they are not fed through the machine again. The digits are represented by a combination of perforations according to a code, Fig. 3, and a transaction by four rows of perforations as shown in Fig. 2, the columns A-0 to A-9 representing quantities and amounts and columns P, Q, R, S. C. X, Y, Z representing sales division, department such as mens and ladies, and article, colour, and size. If the machine is set to analyze, the transactions as a single group the seven columns on the right, Fig. 2, will be utilized to select seven groups of totalizers, the perforations selecting the particular totalizer of each group to be actuated. A summary record produced in this manner is shown in Fig. 4, an S being printed to indicate this. Setting controls. The columns Q, X of the record-strip select the hundreds of the groups for each department, the columns R, Y select the totalizer group and the columns S, Z select the particular totalizer. The control knobs are shown in Fig. 1, the key 1150 energizes the motor driving means, the knob 1280 is set to the departmental group or single group, the knob 762 is adjusted to the particular group of 100 classes to be analyzed or to neutral, and the knob 742 is adjusted to feed the record-strip in the proper direction. After each cycle of operation the totalizers are cleared, the handle 1595 on a shaft 450 being moved from the " add " position to the " total " position and the knob 1759 setting the dial 1735 to the totalizers to be cleared and the knobs 742. 762 and handle 1595 are then readjusted. The column C controls the operating circuit to stop the machine. Analyzing mechanism. The analyzer consists of seventeen groups of insulated contacts 1010 - - 1013, Figs. 92 and 96, two sets of contacts 1014, 1032 co-operating with the C column, and two sets of control contacts 1028, 1030 and 1029, 1031, Fig. 86, co-operating with the Q and X columns respectively. The contacts 1010 - - 1013 are carried by arms on a. shaft 606 and rocked intoengagement with the detail-record on the analyzer drum 645 by means of a lever 1019 having a roller engaging a cam-race 1021 on a gear 554 on a shaft L, the circuit being completed through the perforations. the drum 645. and contact 1025. The sets of contacts 1030 - - 1032 and 1028, 1029, 1032 are carried by arms 1035, 1046 respectively loose on the shaft 606, the arms being connected to pitmen 1037, 1048 each having a roller engaging a cam-race on cams 1040, 1051 secured to the shaft 741 carrying the knob 742. Adjustment of knob to reverse direction of travel of record-strip thereby effects the setting to operative position of one or other set of contacts. Detail record carriage. The carriage, Figs. 80, 81, and 82, comprises a framework 592, 593 loosely mounted on a shaft 591 and provided with two spools 673 and an analyzer drum 645. The spools are formed by slotted tubes provided with flanges 672 engaging notches 671 formed on the hubs of short shafts 665, 668, 675, 676 supported in the frames. The shafts 668, 676 are slidably mounted but are held in position by pivoted spring-controlled members 680 adapted to engage recesses in the shafts. The drum 645 is formed of two flanges 646 and a cylindrical member insulated therefrom. The flanges are keyed to a shaft 620 and have teeth thereon for engaging perforations in the edge of the record-strip. The strip is pressed against the drum by rollers 652, 656 in spring-controlled arms 650, 654, Fig. 84, and stripper plates are provided to loosen the record from the drum. To lock the carriage in position bell-cranks 607 loose on the shaft 606 engage pins 605 on the frames. A link 608 connects each bell-crank to an arm 609 on a shaft 610. Also secured to the shaft 610, Fig. 58, is a lever 611 having a latch 612 adapted to engage notches 613 in a disc 614 carried by the machine frame. To free the carriage the latch is disengaged and the lever 611 raised to rock the shaft 610 to disengage the bell-cranks 607 from the studs 605. At the same time the roller 656, by the connection of its arm with the shaft 610, is moved out of the path of the drum 645. When the carriage is freed the drum 645 is held against movement by an aligning pawl 621 and notched disc 624, the pawl being rendered operative by the removal of a stud 628 on one of the bellcranks. A flange 629 on the pawl normally engages a stud 630 on the machine frame to prevent movement of the carriage until the pawl engages the notched disc. Projections 595 on the lower cross-member of the carriage frame are screw-threaded to receive screw-threaded members 596 with hubs carrying a coiled spring 637 surrounding a sleeve on the shaft 591. The members are threaded in opposite directions so that after a certain movement of the carriage the compression of the spring is sufficient to overcome its weight. The tension of the spring can be adjusted by manually setting the shaft 591. Feeding mechanism. The drum shaft 620 carries a wheel 690 connected to a train of gears 691, 693, 695. In one direction of rotation the gear 691 through a clutch 701 - - 704 rotates a gear 697 in mesh with a pinion 699 loose on the shaft 675; in the opposite direction of rotation the gear 695 through a similar clutch rotates a gear 698 in mesh with a pinion 700 loose on the shaft 665. The pinions 699, 700 are each clutched to a friction disc 706, and each pinion and disc is pressed by a spring 708 against friction discs 709, 707 secured to the shafts 675, 665 to be rotated thereby. This friction allows for the variable amount of feed due to varying diameter of record-strip in winding. To apply a braking effect on the spool being unwound, the gears 697, 698 have hollow hubs 715 in which are inserted springs 717 that bear against shoulders on the shafts 692, 696. The wheel 690 meshes with a gear 732, Fig. 96, connected through a reversible gearing 726, 727, 730 and clutch 725 to a shaft 724. The shaft 724 has secured thereto a Geneva plate 723 actuated by pins 701 supported between a disc 720 and gear 718 secured to a shaft S, Fig. 89. When it is desired to reverse the direction of feed the knob 742, Figs. 89 and 96, is turned 180‹ until a shoulder on a disc 745 engages a stop 746 on an arm 747. At the same time a gear 740 rotates gears 738, 736 to shift the shaft 724 to the right, Fig. 96, to throw the clutch 725 into engagement with the reversing pinion 727, the gear 736 being carried by a screwthreaded member supported in a bracket 737. Totalizer selecting and actuating mechanism. The totalizer pinions 220, Figs. 11 and 22, are arranged on ten shafts the common denominational elements being grouped in the known manner. The group of elements are separated by a space to which blank position any shaft will be moved if no totalizer of that group is selected. The differential mechanism for setting the totalizer shaft is similar to that described in Specification 221,134, and comprises a set of driving members 260, differentially movable members 261, latch members 263, and the wellknown " minimum movement " beam actuators 290 - - 293. The drivers 260 are operated from a shat 213, Fig. 15, through cams 252 and rollers on arms of a toothed segment 249 in engagement with a segment 248 on the driver shaft 245. Each differential unit, Fig. 12, is provided with a set of ten key-like members 280 adapted to be selectively released to position their lower ends into the path of the latch member 263 just prior to the return or clockwise movement of the driver 260. The keys are slidably mounted in a frame 284 and are controlled by four notched slides 316 adapted to be moved in combination by corresponding electromagnets 320 to select keys representing the ten digits, the slides being notched according to the diagram, Fig. 14. The keys co-operate with the four slides 316 through projecting pins 324 on each side of the keys and are under the action of springs 331. Studs 330 on the keys to which the springs are attached engage the cam surfaces 340 of bars 339 reciprocated by an arm 350 on a shaft 347 to effect the release and return of th