US2278409A - Graph printing tabulator - Google Patents

Description

J. w. A`RMBRUSTER GRAPH PRINTING' TABULATOR 8 Shee's--SheeTl l lFiled Aug. 30, 1932 vApril 7, 1942 J. w. ARMBRUSTER GRAPH PRINTING TABULATOR 8 sheets-sheet 2 ATTORNEY- April 1, 1942. J. w, ARMBRUSTLR 2,278,409

GRAPHPRINTING TABULATOR Filed Aug. 30. 1952 yes sheets-sheet 3 AT'TORNEY April 7 1942. .Jl w. ARMBRUSTER 278,409

GRAPH PRINTING TABULATOR Fild Aug. 3o, 19:52 a sheets-sheet.:

J; w. ARMBRUSTER 2,278,409

vGRAPH PRINTING TABULATOR- 8 Sheets-Sheet Filed Aug. 30, 1932 ATTORNEY- April -7, 1942.

J. W. ARMBRUSTER GRAPH PRINTING TABULATOR Filed Aug. 30, 1932 8 Sheets-Sheet 6 FIG. I0.

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5 5o MCM RED M4 40 BLUEGemnIg naald pl suffnagpm l lo L72 72 /750 STOCK N0. DATES Magirus vergat?" 1n-guus :Torn un nn: 12:: l nu a7' JAN 5270 7 :sa 973 v |7 FEB 5930 *f 55 z -96 le I7 MAR 6360 a 55 3 '931s |7 APR 6690 n 5a 4 as is I l1 MAY 6970* 53 5 a7 7 Ju 7450 a 53 e Ba 4 750 I7 JUL 7740 1f ss 7 841s n Ave 76 :o 1 5s e 84 :74 SEP 7290 f ss 9 824 I7 ocT 72:10 n 53 |o 83% I7 NOV 7330 lr :7 nec 7320 7 832m i F 26 JAN |680 r ze FEB lNvNToR FIGJZ,

'BY/d ATTORNEY April 7, 1942 J'. w. ARMBRUSTER 2,278,409

GRAPH PRINT ING TABULATOR Filed Aug. so, 1932 esmas-sheet 8 Patented Apr. 7, 1942 UNITED STATES PATENT OFFICE GRAPH PRINTING TABULATOR John William Armbruster, East Rockaway, N. Y.,

assignor, by mesne assignments, to International Business Machines Corporation, New York, N. Y., a corporation of New York Application August 30, 1932, Serial No. 631,038

9 claims. (ci. zas-61.9)

This invention relates to devices for automatically printing graphs or charts. The invention is illustrated as an attachment for a machine controlled by perforated records.

In the use of statistics for control of management, charts are often used as a means for comparing a plurality of related data or for noting the trend of variation in data.. The data used are gathered and usually treated with some calculation such as, addition, subtraction, multiplication, division, or Weighting, indexing, etc., before charting. Heretofore, accounting machines produced the data used in compiling statistics but did not arrange the data in a form easy tocomprehend. The arrangement of the data was left as a separate operation for someone to plot graphs or charts, using the gures supplied by accounting machines. The object of this invention is to provide a machine which not only carries on the accounting operations to produce the data but also places the data directly on a chart. The machine of the invention dispenses with the slow manual operation of charting data and furnishes a quick source of easily read information produced simultaneously with the accounting operation. The invention, therefore, widens the scope of the effectiveness of accounting machines to include'statistical work.

The primary object of the invention is to provide means for automatically plotting and indicating curved lines for illustrating variations or trends of datum values.

An object of the invention is to provide a machine adapted to adjust both a chart printing I member and a designating printing member which is associated therewith to identify by name, number or date the value of the chart point or line.

Another object of the invention is to provide devices for printing a chart under control of a calculating mechanism.

Another object of the invention is to provide graph printing devices which operate under group control. The amounts plotted are accumulated under control of a series of records h-avingsimilar or related designations and the total is plotted on a chart.

A feature of the ,invention is the printing of` a chart simultaneous with the accumulating and printing of the record data used in determining the chart values.

`The invention provides a chart printing member which though adapted to print a single point or line, is controlled by a plurality of devices L moved differentially.

The invention discloses means for giving a line printing member vaV primary adjustment under control of one order of a printing device, a secondary adjustment under control of a lower order printing bank, and a third adjustment under control of a still lower order printing device.

A feature of the invention is the printing of a plurality of different curves in different colors on a single chart for a comparison of trends or variations in data. V

Another object of the invention is to provide a device for plotting in Cartesian coordinates, various values of data as ordinates. The abscissa values of the data are spaced by paper feeding mechanism which moves the chart record sheet so that the ordinate markings are properly presented with respect to a datum line.

Another feature of the invention is the automatic plotting of a straight trend line under control of a set of perforated records.

Another object of the invention is to provide datum designating printing devices located in vertical alignment with a chart line printing member.

The mechanism embodying the invention comprises a line or point printing member and designating or chart datum identifying printing members. Both printing `devices are adjusted differentially under control of the record cards fed through the machine. The usual record printing devices are provided in addition to the chart printing devices. Two forms of record sheets or papers are printed inthe machine. The one ordinary form of record sheet is printed upon by the usual numeral or letter printing type.r 'I'he other record chart sheet may be made of ruled or plain paper and is printed upon bythe line printing or curve describing type member `and the chart datum identifying type members.

In addition to the usual horizontal platen for printing data handled by the machine, there is provided a vertical platen alongside the regular record sheet. The roll of chart record paper is mounted adjacentl the vertical platen and serves to supply the paper which is fed horizontally past the platen. The paper is usually fed a step on each operation of the machine. For certain operations, feeding and printing'is placed under group control so that operation is only caused on totals. Two inking devices arev provided. The one in the form of' the ordinary ribbon inking means cooperates' with designating typ'e. The other comprises a group of differently colored inking pads, with which the line printing member comes in contact when in the normal position. The padA carrier is adjustable to present any one of theA pads 4to the printing member. Between the Vcolored pads. are mounted cleaning pads for preparing the line printing member for receiving different colored inks.

When the' chart printing devices finish the printing of a curved line in one color representing the variations in data of one class, the inking devices may' be adjusted andthe chart paper returned to normal position ready to start the printing of another curved line in a different color representing the variations in data of another class.

The line printing member projects to the side of the printing bar upon which it is mounted, and reaches into the vertical plane of a series of designating type members associated with the same data used in printing the line on the chart. The line printing member also reaches over into the plane of a lower order print controlling bar for a secondary adjustment. A nal adjustment of the line printing member is caused by the differential movement of the still lowerV order print controlling bar. The three control bars are adjusted differentially under control of the sensing devices cooperating with a perforated record card. The designating data printing type members are also adjusted under control of sensing devices cooperating with a portion of the perforated record card. The chart printing adjustlng devices may also be connected to take readings from a totalizer. After a series of items are accumulated on the totalizer, the line printing member may be operated to print a graph line representing a total accumulated under control of group control devices.

The invention is illustrated by a set of drawings which accompany the description and form part of the disclosure.

In the drawings:

Fig. 1 is a sectional elevation View showing the printing control devices and the chart printing and record sheet printing mechanism.

Fig. 2 is a sectional plan View taken along lines 2--2 in Fig. 1, and showing the chart printing devices.

Fig. 2a is a sectional elevation view taken along the lines Zal- 2a in Fig. 2, and showing the chart printing devices.

Fig. 3 is a side elevation view of the chart printing devices adapted to plot a graph in polar coordinates.

Fig. 4 is a detailed view of a graph plotted in polar coordinates.

Fig. 5 is a side elevation view showing the two lower order chart printing banks. This view also shows the chart and record paper feeding devices.

Fig. 5a is a detail view showing the controlling mechanism for the paper feeding devices.

Fig. 5b is a side elevation view of an accumulator showing the accumulating mechanism and the total reading devices.

Fig. 6 is a side elevation view of the highest order chart printing bar.

Fig. '7 is a side elevation view ol the lowest order chart printing bar.

Fig. 8 is a side elevation view of the second order chart printing bar.

Fig. 9 is a side elevation view of one of the three chart designating bars.

Fig. 10 is a sample sheet oi a graph plotted under tabulating control. The graph is shown with four curved lines which may be printed in different colors.

Fig. 1l is a view showing a sample graph sheet which is plotted under listing or item entering control. The graph shows a single curved line and a straight trend line which is plotted by a pre-arranged set of cards.

Fig. 12 shows a record sheet which is printed in the tabulator at the same time that the graph sheet shown in Fig. l0 is printed therein.

Fig. 13 shows a record sheet which is printed simultaneous with the printing of the graph sheet shown in Fig. 1.1.

Figs. 14a and 14h when taken together comprise the wiring diagram of the machine.

The illustrative machine The invention is illustrated as employed in a system adapted for use by a large statistical service organization. The object of the organization is to keep or produce records showing and comparing past performances of listed securities. In order to render investment service, comparisons of diierent combinations of records and trends of various values must be studied. To keep an upMto-date record of each security, perforated record cards are used. A card is provided with index points representing information concerning a certain security for a period of time. For example, the card may show the number of shares sold cn certain day; the. open, high, low, and closing prices, class designation, sub-class designation, period designation, security designation and other data.

Another form of record card representing a longer period-say a month or quarter year could show the earnings and dividends of a certain security. These cards are then filed or grouped according to any of the many classications ap pearing in the form of perforated index points. When a chart showing the trend of any of the characteristics of certain security is desired, the related group of cards is placed in the tabulator where a tubulated record and a chart is produced simultaneously. The plugboard of the machine permits a very flexible arrangement whereby any data on the card may control the chart print and any other data control the designating type in line with the chart print. In the charting of security values the date designation would be the one used most. A chart 'l2 illustrating such use of the machine is shown in Fig. 1l. There the opening prices of a certain stock are charted with respect to the days of a month. The trend line indicated on the bottom of the chart may be printed from a prearrangcd series of cards, grouped with the stepped values to outline a certain trend such as 10% rise or a 15% rise, etc.

At times it is desired to chart values which are the result of a calculation, such as the result of earnings added up over a period, the result of number oi shares sold over a long period, or any other totaled ligure. In order to do this, the machine is conditioned to operate under group control and take automatic totals. The machine employed does not print or feed record material during the accumulation of items, the group control making the same eiiective only in total taking; the said control may serve to control chart feeding and printing. A sample ol such an operation is shown in Fig. 10 where the number of shares of a certain stock sold during certain months are accumulated by days and plotted by months. The group control devices in the instance given, are placed under control of the month index points on the record cards.

In compiling statistics, at times it is desired to weight the iigures to present conditions not revealed by the cold facts gathered. In one instance it may be necessary to correct for seasonal variation. It is simple to do this in the record controlled machine for charting. A series of record cards graduated in value to furnish the weighting of the values to be charted, may be interspersed between the'cards containing the plain fact figures. Each Weighting card .should have a groupnumber corresponding to the card with which it is to be associated, so that during tabulating under group control the Weighting figure is added to the true Afigure and the result is charted, f

When two or more lines of charted values are to be compared they are placed on the same chart sheet and printed in different colored ink. As shown the machine is adapted to print in four diiferent colors. In Fig. 10, the number of shares sold of four diierent stocks are charted and distinguished from each other for easy comparison by presentation in colored lines.

Before describing the chart printing devices it is advisable, first, to consider the regular accumulating, record sheet printing, group control, total taking and paper feeding devices in the tabulating machine.

The tabulator in combination with which the present invention will be disclosed, is well known and is generally of the kind described in the Patent No. 1,757,123 to C. D. Lake, et al., and Patent No. 1,762,145 to G. F. Daly, et al., so that for a detailed explanation notv especially concerning the present invention, reference may be made to those patents.

The circuit diagram of the tabulator equipped according to the present invention is schematically shown in Figs. 14a and 14h. Power may be applied to the tabulating circuits through the main switch 33. It is customary to provide for a reset cycle before starting tabulating or adding so that any data which may be standing on the accumulator from a previous machine operation will be cleared. During the reset cycle the machine is driven by the reset motor RM, the resetting devices being driven by this motor through a one revolution clutch of well-known type which is controlled by the clutch magnet 51 wired in series with the motor, The circuit through the motor and clutch magnet may be closed through a reset key 56 whereupon a single reset operation will occur. The clutch magnet 51 is short-circuited shortly after the start of the cycle by cam contact P--|, whereupon the stick circuit controlled by the magnet is opened and the motor RM is stopped on the reopening of contacts P-I at the end of the cycle. The motor and reset clutch stop in their home position in the well known manner. During this reset cycle the magnet 36 is energized through a circuit including a stick magnet 35 and lower cam contacts P-3. The operation of the reset motor closes and then opens lower cam contacts P-3, the closure of which energizes relay magnet 36 through a circuit extending from the left line, through magnet 36 and stick magnet 35 to lower contacts P-3 and thence tothe binding posts in the right line. The opening of the lower contacts P-3 will not deenergize magnet 36 as the energization of magnet 35 has closed a supplementary circuit for it. The stick magnet 35 prepares an additionalcircuit for the magnet 36 extending through the cam contacts C| and the automatic control circuit 42, so that as is well understood and will be briefly ydescribed hereinafter, the magnet 36 when once energized remains energized until the automatic control circuit breaks to initiate another reset and total taking operation.

When magnet 36 is energized, it closes contacts 34 whereupon the tabulating motor TM which drives the machine during tabulating operation may be started by depressing the start key 38.

This establishes the starting circuit for the tabulating motor extending through the card feed clutch magnet 6,'magnet 39, start key contacts 38, contacts 34, stop key contacts 40 and cam contacts P-3.

A net work of circuits is provided in shunt with the start key contact 38 so that the tabulating motor will be kept in operation as long as cards are feeding and contacts 34. remain closed. The operation of `these circuits vis well known and will not be dwelt upon further.

The cards are fed from a stack 2, Fig. 14a, by means of a picker I, one card being delivered each machine cycle. The picker delivers them forth to transport rolls 3 which conduct each card in succession between upper or control brushes 1 and cooperating contacts 8, and exactly one cycle later between lower or adding brushes 9 and their cooperating contacts |0. These contacts cooperating with the lower brushes terminate yin triple sockets 2| (Fig. 14h) to which the several accumulator magnets 46 of the totalizers may be plugged through sockets 22, this plugging arrangement permitting any accumulator magnet to be coordinated with any 4lower brush. As the cards feed past the lower brushes, the perforations therein permit the lower brushes to engage the cooperating contacts at differential times, causing differentially timed impulses to be applied to the accumulator magnets to enter the data represented by the perforations.

Although the accumulating and printing mechanism is well known in the art and fully described in the patents referred to hereinbefore, these operations will be briefly explained in the way that they concern the present invention.

Referring to Fig, 5b, a driving shaft 260 is driven by the tabulating motor whenever the latter is in operation. Through trains of gearing designated generally at 400, this shaft drives individual accumulator-driving gears 40| which are slidable on a shaft 402. Each of the accumu later-driving gears 40| cooperates with an accumulator gear 403 which drives a rotatable accumulator element 404 and a total taking gear 405 to which a stepped cam is attached. A pivoted lever 406 at one end projects into va circumferential groove in the driving gear 40| and tends to shift the latter on shaft 402 to force a clutch element on the driving gear into driving engagement with a clutch element on the accumulator gear 403; this tendency being due to the pressure of spring contacts 29- on the other end of the lever. This engagement is normally prevented by an extension on the armature 146 of the accumulator magnet 46 which engages a lug 401 on lever 406. The magnet 46 is energized at a differential time according to the location of a perforated index point on the controlling card and when energized it attracts its armature, moving the extension thereon out of engagement with the lug 401 and permitting spring contacts 29 to swing the lever 406 and shift the driving gear 40| into driving relationship with the accumulator gears 403. Thereupon, the accumulator gears 403 are rotated until at a given point in the cycle, suitable kick-out mechanism shifts them back to their original position, permitting the extensions on the armatures 146 to engage lugs 401 to hold'the mechanism out of operative position. In this manner, the gear 403, as well as the accumulator wheels 404 and the total gears 405, assume positions corresponding to the numbers represented by the perforated index points on the controlling records.

This action is accumulative in that after several items have been entered, the position of the accumulator wheel 404 and the total gear 405 are positioned according to the total of the several entered items. The contacts 29. as may be seen from the circuit diagram in Fig. 14o, consist of two pairs of Contact points one of which is in series with an accumulator magnet 46 and another of which is in series with printer magnet 41, the former contacts being normally closed and the latter normally opened. As soon as an accumulator magnet is energized, the closed contacts 29 open, deenergizing the accumulator magnet and the open contacts close energizing the printing magnet to effect printing, as will be described hereinafter, to list the items entered on the accumulator wheel.

The manner of printing for a listing opera'- ticn may be understood from Fig. l. During the listing operation, the shaft 294 also constantly driven by the tabulating motor, drives a boxcam 3| I having a groove to accommodate a roller on arm 309, freely journalled on a shaft 305. Fixed to this shaft 305 is a two-arm member 304, one arm of which, as shown in dotted line to the right of the shaft in Fig. l, has an extension projecting beneath a set screw fixed on arm 309, whereupon as the latter is rocked by the box-cam 3|I, the member 304 and consequently shaft 305 to which it is aihxed rock clockwise and then counterclockwise. An arm 306 is also xed to shaft 305 and attached by link 21| to a type bar operating cross-head- The type bars 261 are slidably mounted in this cross-head. An arm 268 for each type bar is pivoted to a bracket extending from the crosshead and has a suitable spring indicated at 4I0 which serves to hold this arm upwardly. The free end of the arm engages the lower end of the type bar and raises it with the cross-head. The type bar at the upper end carries the printing head 265 having type 266 slidably mounted therein which successively pass printing position opposite the platen 263 as the printing crosshead rises.

The type bar may be arrested in position to select any type for printing by energizing the related printer magnet 41. Whenever one of these magnets is energized, it attracts an associated armature 210 and pulls a call rod 211 to the right, thereby releasing a latch 213 and permitting a pawl 212 to engage in ratchet teeth on the type bar to arrest further upward movement of the bar. This stopping of the type bars does not affect the motion of the cross-head, because the springs 4I0 yield so as not to interfere with the upward movement of the cross-head. After all the type have been placed in the proper printing position, a printing bail 283 is tripped by a trip lever 500 (Fig. 1) pivoted at 50| on arm 306. A shoulder on the upper end of lever 500 engages a depending arm on bail 203 and serves to rock the bail in a clockwise direction to tension spring 204 when arm 306 is lii'ted. The crossbar 502 of the bail contacting the lower left side of the hammers, is lowered and suddenly released when the shoulder on lever '500 releases the arm on bail 203 and allows spring on the record sheet 150 carried by the platen 263. After the printing operation, the counterclockwise motion of shaft 305 lowers the arm 306, allowing the cross-head to restore through the action of spring 280. A shoulder on the lower Dart of the cross-head engages a lug or projection 4II on each type bar to restore it to normal home position.

When a total is to be taken, the reset motor RM, (Figs. l. and 14a) drives the shaft SI5 through a worm 333 and a worm wheel 340. The worm wheel is loose on this shaft but carries a clutch element consisting of a disk (not shown) provided with ratchet teeth. The shaft 3 I 5 carries a disk having a pawl pivoted thereon, said pawl being normally held out of engagement with the ratchet teeth under control of total printing magnet 51. When the printing magnet is energized, it serves to release the pawl which goes into engagement with the ratchet teeth and drives the total taking shaft 3I5. After a single revolution of shaft 3I5, the pawl is withdrawn from the clutch and out of engagement with the driving means, thus limiting the movement of shaft 3I5 to a single revolution. The shaft 3|'5 (Fig. l) carries a cam 30| which cooperates with a roller on an arm 302 freely jcurnalled on the rock shaft 305. This arm carries a lug 303 engaging with a set screw on one arm of member 304 whereupon the raising and lowering of arm 302 by cam 30| will in turn cause rock shaft 305 to rotate first clockwise and then counterclockwise to raise and lower the type bars 261 for total printing.

In order to print a total the printing magnets 41 are energized in accordance with the accumulator or totalizer position. It will be recalled that during accumulating operation the ,stepped cam III (Fig. 5b) is positioned according to the reading on the accumulator wheel 404. This reading is taken off by a Contact assembly consisting of a frame 359 fixed to a shaft 358 which is rocked by a suitable cam and linkages from the total taking shaft 3I5 during the total taking operation. A contact arm 360, of which one is provided for each total cam II I, is pivoted to shaft 358 and a spring 362 is provided to yieldingly hold this arm in engagement with frame 359.

An arcuate extension I I2 carried by the arm 360 but insulated therefrom, is in engagement with a fixed stationary contact 366 mounted on the frame. The contact frame 359 carries a contact 355 adapted to coact with the arcuate eX- tension |I2 and normally spaced therefrom as shown in Fig. 5b. The printing magnets are in series with contacts 365 and 330. During the rocking motion of shaft 358, as long as the arm 360 is free to follow frame 359 there is no electrical connection between contacts 365 and 366, but when set screw 36| engages the stepped total taking cam I I I, further motion of the arm 360 is prevented and movement of the frame 350 causes contact 365 to engage arcuate extension II2, thereby establishing electrical connections between contacts 365 and 355. The stepped II'I is so shaped that this electrical connection between contacts 365 and 306 occurs at a time in the machine cycle corresponding to the reading on the accumulator' wheel, whereupon the printing magnet 41 is energized at the proper time in the cycle to arrest the type bar 261 with the printing type corresponding to the total on the accumulator, opposite the printing point on the platen.

The machine shouldremain' in tabulating operation after it is once started'as longxas the group designating perforation onl the successive cards agree. Thev circuit for motor control magnet 36, Fig. 14a, established by magnet `35mcludes the cam contacts C-l and the automatic control circuit 42 in parallel. Before the end of each cycle, cam contacts C| open instantaneously and tend to break this circuit. When the group designations on successive cards agree, however, the circuit is held through the automatic control circuit 42. This ycircuit includes a plurality of contacts 28 wired in series, any number of which may be placed in series in the control circuit by means of a plug 30 which can be plugged into suitable sockets provided between the pairs of contacts 28.

The upper analyzing brushes 1 cooperating with the group designating column are plugged from the sockets 20, Fig. 14D, to the sockets 23 of auto control magnets 21 and the latter, through sockets 26, are pluggedto sockets 2| of the lower brushes 9 cooperating with the control columns. A magnet 21 is thus wired in series between the upper and lowerv brushes of each group designating card column and the corresponding contacts 28 are plugged in series in the automatic control circuit 42 by plug 30. When the group designating perforations in the cards under the upper and lower brushes agree, the magnet 21 coordinated with each of these columns is energized instantaneously at some time during the cycle. This instantaneous energization causes its associated contacts 2B to close and remain closed until near the end of the cycle. If the cards under the upper and lower brushes agree, then all the contacts 28 and the auto control circuit 42 are closed. In this case, the opening of the contacts C-I, which occurs once each card cycle after the adding portion thereof, will be ineffective to deenergize the motor control magnet 36 and the machine is conditioned for another tabulating cycle. As soon as the control perforations on the cards under the upper and lower brushes do not agree, one or more of the magnets 21 fail to energize during the cycle and the corresponding contacts 2B remain open; thereafter the opening of the cam contacts C-I deenergizes the motor control relay magnet 36, permitting contacts 34 to open, causing the tabulating motor TM to cease operation at the end of the cycle whereupon the tabulating mechanism of the machine vcomes to rest in normal position at the end of the cycle.

The data entered into the accumulators or totalizeis may be listed through printer magnets 41, Fig. 14h, which are controlled by contacts 29 which in turn are controlled by accumulator magnets 46. When the accumulator magnets are energized the inner contacts 29 are closed, thus energizing the printing magnets 41 simultaneous with the accumulator magnets 46. The printing magnets are therefore energized differentially with the same timing as the accumulator magnets and select the printing type for operation in the well known manner to print the item.

In describing the machine two conditions must be considered; the first or tabulating condition makes records of group identification or designation data and totals only; the second or listing condition serves to print the individual items with the group data and then print the totals of tioned above, so that only totals and group data are printed upon the record sheet 150 and chart sheet 12, provision is made for initially printing the group data upon the sheets. Subsequently, when a total has been accumulated by the machine, this total amount is indicated on the chart or graph sheet 12 and entered upon .the record sheet 15|) in alignment with the previously printed group data as shown in Figs. 10 and 12 on the drawings.

The second or listing condition involves a different operation. The group data and item are printed concurrently, a printing operation being effected for each item, as shown in Figs. 11 and 13. Finally, a total is printed without the accompanying printing of the group data.

The devices for bringing these operations about, so far as the mechanism of the machine is concerned, are directed particularly to construction involving the operation of the listing cam and the parts controlled thereby and also the operation of the paper feed devices.

It is noted hereinbefore 'that the rising of the type bar 261 (Fig. l) is brought about by the operating shaft 294 through the instrumentality of listing cam 3|| when the machine is set for listing, and when total taking operations are to be affected, the type bars are raised by means of total cam 36|. It was assumed that the listing lcam 3|| is driven at all times when the tabulating machine is operated. However, referring to Fig. 1, it is noted that cam 3| is clutched to shaft 294 by a clutch dog 5|2 connected to the cam, engaging a disk 5|0 on the shaft. The connections may be disabled for certain operations of the machine.

By shifting a tabulating leverin the machine from the listing position to the non-listing position, an arm 508, Fig. 1, is rocked from a position removed from the clutch, to the position shown in Fig. y1 with the end of the arm on top of the short arm of the clutch dog 5|2. At this time the clutch dog is not disengaged from the notch in disk 5|0. It, therefore, follows that upon the rst machine cycle, the listing cam 3| will make one revolution and at the completion of this revolution the dog 5|2 will be thrown out of engagement. This single revolution of the listing cam 3|| is utilized for printing the group data f from the cards on the record sheet 150 and graph sheet as shown in Figs. 10 and 12.

As shown in Fig. 12 the total is later printed on the record sheet 150 in alignment with the previously printed group identification data. It is, therefore, necessary to provide means for pre- -venting the paper feed from operating after the group data is printed until the total printing operation is completed. The mechanism about to be` considered is fully described in Patent No. 1,762,145.

After the listing cam 3| l has made one revolution, the clutch dog is disengaged as already explained and remainsdisengaged until a total is taken. Upon the taking of a total, magnet 51 is energized and actuates connections to rock shaft 520 counterclockwise, thereby rocking arm 508 and releasing dog 5|2, allowing it to reengage the disk 5H] to place the parts in condition for printingduring the next operation.

The construction and operation of the paper feeding mechanism is now taken up with reference to Figures 5 and5a.

A link 336 (Fig. 5) is connected at the upper end to a ratchet and pawl paper feed device 399 of the usual type and at the lower end is connectcd to a lever 334 (Fig. 5a) which is pivotally mounted at 60| on a fixed supporting plate 335. Secured to lever 334 are two L-shaped members 333 and 331 rigidly connected at their right hand ends to 334 at points 60| and 605. The other ends are adjustably secured to lever 334. Members 334, 333 and 331 after being once adjusted, always operate as a single unit. This unit is actuated either by rocking of shaft 305 or operation f lever 330.

Shaft 305 always operates the paper feeding mechanism when it must feed the paper on the upward stroke of the type bars, as for every revolution of cam 3|| (Fig. 1) when listing is being performed and also for one revolution during the first card cycle when tabulating operations are being performed. As explained hereinafter, lever 330 actuates lever 334 on the down stroke of the type bars to draw down on link 330 only during the latter part of a total printing and reset cycle when the machine has been previously set for listing.

When the machine is set for listing, the operation of the paper feeding mechanism is as follows: Shaft 3|1 is shifted manually to listing position and block 603 attached rigidly to the shaft abuts against a projection 604 on a latch 331i; which is pivotally mounted at 606. The block 603 holds latch 3311 in such a position that it cannot engage block 331a xed to member 331. Thus, parts 331a and 331b are inoperative while the machine is set for listing. While listing, shaft 305 rocks first in a clockwise and then in a counterclockwise direction for each revolution of cam 3|| (Fig. 1). At the end of shaft 305 is an arm 338 (Fig. 5a) having at the upper end a pin 600. As shaft 305 is rocked in a clockwise direction, this pin 600 contacts against a shoulder on member 331, rocking the unit comprising parts 333, 334 and 331 about the pivot 60| and drawing down link 336 and feeding the paper one line space. This occurs while the type bars are being raised. It is noted that during listing operations, the paper is fed one line space for each cycle of operation of the machine, or each revolution of cam 3| On the down stroke of the type bars, shaft 305 is rocked in a counterclockwise direction and allows lever 334 to resume the normal position.

At the end of the listing of a group of cards, a total is taken. When the machine takes a total, cam 3|| cornes to a stop and shaft 3|5, on which are mounted cam and a gear 318, makes a complete counterclockwise revolution, as previously described. Cam 30| rocks shaft 305 (Fig. 1) through the same arc as described above for cam 3| I, so that the paper is fed the usual one space before printing a total. Early in the second half of the total printing cycle shaft 305 completes its rocking motion and link 33E rises to normal position as units 333, 334 and 331 return to the position shown in Fig, 5a.

After a total is printed it is desirable to leave a blank space on the paper before listing the first item of the next group. The paper is fed this extra space during the last part of the total printing cycle in the following manner: A pin 329 on gear 328 contacts with lever 330 which is pivoted loosely on shaft 305, rocking 330 in a clockwise direction. Lever 330 has an upwardly extending arm 330a to which is connected a slotted link 602. As lever 330 is rocked by pin 329, the lost motion in link 602 is taken up, stretching a spring 603, and link 002 then acts on a pin fixed in part 333 of the unit consisting of parts 333, 334 and 331.

This rocks the unit in a counterclockwise direction, thus drawing down link 336 a second time during the total printing and reset cycle to feed the paper an extra space after total printing. This slot in link 602 and the spring 503 above mentioned are provided in order to hold lever 330 normally in a counterclockwise position to provide clearance While parts 331a, 331D and 604 are operative as later described.

If it is desired to perform tabulating, instead of listing operation on the machine, it is necessary to shift shaft 3|1 to a tabulating position. As pointed out hereinbefore, when the machine is set for tabulating, the listing cam 3I| will turn one revolution (during the first card cycle) starting from the position shown in Fig. l, being stepped by the arm 508 after the completion of one revolution. During this revolution the shaft 305 will be rocked and the paper fed one line space. Since the shifting of shaft 3|1 to tabulating positicn has moved block 603 out of contact with projection 604, block 331a becomes locked by latch 3312) which is actuated by a spring 601. The spacing of the paper takes place during the early part of this cycle. During the same cycle after the spacing takes place, printing is effected. For tabulating operation this printing from the first card will be of the group designation data only, or identification data, such as, JAN, FEB, or MAR on the record sheet as shown in Fig. 12 and the same month identifications on the record chart 12 as shown in Fig. 10. As the listing cam 3H is locked against operation at the end of the first card cycle, there will be no further printing during the continued operation of the machine until a total is taken. In the meantime as the operation of the paper feed mechanism is suppressed by the latching of block 331a by latch Sillb, the line on which the group data is printed remains in printing position so that when a total is eventually printed it is on the same line with the group data, as for example, the number 5270 which is a total printed on the first line in alignment with JAN in Fig. l2. And turning to Fig. if) it is noted that a line 1| is plotted to represent the number 5270 in vertical alignment with the January column on the record chart 12.

When the total is printed, shaft 305 is rocked again in a clockwise direction, this time by cam 30|, but no movement of 334 or 335 takes place on this upstroke of the type bars due to lever 331 being held by block 331a and latch 33119. The result is that the paper is not fed this time and the total is printed on the same line as the group number during the first tabulating cycle. Near the end of the revolution of shaft 3|5, after shaft 3535 has returned to its normal position, pin 320 on gear 328 makes contact with lever 330 and causes it to rock about pvot 305 in a clockwise direction, the slot in link B02 attached to the upper end allowing it to move freely. As lever 330 nears the end of a Clockwise rocking movenicht, the upward projection 330e acts against projection 304 of latch 331D, releasing block 331a and allowing 331 and attached members, including link 335, to resume normal position with the older of member 331 against pin 500. As soon spring as n n 320 has passed the end of lever 330,

draws lever 330 to the normal position. The foregoing section of the specification is rned with the usual tabulating devices. The po u.ons of the description about to be set forth concern `the chart printing devices of the present invention.

Referring to Fig. 14h, it is noted that the No. 41x. These magnets control three designati ing printing bars such as the bar shown in Fig. 9. These bars print the date or numeral designations shown on the top of the graphs in Figs. l and 11.

Referring again to Fig. 14h, it is noted that in line with each printing magnet 41 are plug sockets and 5|. These sockets furnish means whereby the various orders of the accumulators may be cross plugged, or the special printing magnets may be plugged to any orders of the regular accumulator banks. A connector may be placed between adjacent sockets 5D and 5| in any order to put that order of the accumulator in condition for regular operation. Plug wires from the sockets 5| of the special magnets in accumulator 4 may connect these magnets to the sockets 5I) o1' 5I in any of the accumulator banks in the regular accumulators I, 2, and 3. Thus, the three special magnets 41a, 41b and 41c controlling chart printing, may be connected to the three highest orders, or the three lowest orders of an ordinary accumulating unit such as accumulator 2 to control the printing of a line differentially on the chart in Fig. 10, so as to represent the value in the three highest orders or the three lowest orders of the accumulator. When special magnets are plugged to sockets ,5U in regular accumulator orders, the magnets are in series with the total reading contacts ||2 and only the total readings thereof are effective to control chart printing. Connections to sockets 5| in ordinary accumulator orders, from sockets 5| associated with the special magnets, place the special magnets in parallel with ordinary vprint control magnets 41 and under control for item entering operations only. Then a graphical representation cf each item is printed rather than a representation of a total. If the special magnets are connected to either of the sockets 50 or 5I in the orders of the regular accumulators I, 2, or 3, when a plug connection is placed between the two adjacent sockets in the regular orders, the special magnets will be controlled under both total taking and item entering operation of the regular accumulator mechanism just as the regular print magnets 41 are controlled ordinarily.

Of course, the accumulating devices in accumulators 4 and 5 controlled by the magnets 46 directly associated with the special printing magnets may be made effective to control chart printing on total and item entering operations by placing plug connections between adjacent sockets 5|) and 5I in accumulators 4 and 5.

As explained hereinbefore, printing magnets 41a, 41h, 41e, 41m are effective to control barsA 261a, 2611), 261e andv 26111:, shown in Figsj, 8, 'l

and 9, respectively. The special bars 261a, 261b and 261e are stopped in differential position in the same manner as the regular type bars 261 as explained in connection with Fig. 1. However, the special bars are not provided with type, nor are they directly effective in moving the chart printing devices. They are out oil at the top,

just above the guiding blocks. Three chart printing control members 52, 53 and 54v (Figs. 6, 8 and 7) are slidably mounted adjacent the bars and connected to the bars by gearing proportioned so as to increase the range of vertical movement of the chart line printing member 60 carried by member 52. The gearing between the bars and members is the same for each order, so that a description of one applies to the others. Turning to Fig. 6 it is noted that the lower portion of the bar 261a is provided with a rack section 6I. This rack section meshes with a pinion 62 loosely mounted on a shaft 63. Attached to the pinion 62 is a gear 64 in mesh with a rack 65 on the lower end of the graph printing member 52. By means of these connections the upward movement of bar 261a is multiplied in transmission to the movement of member 52.

Another form of driving connection is used to position the designating type |05. Referring to Fig. 9 it is noted that the upward motion of bar 261x is reduced in transmission to the chart designating type member 55. The means for transmitting the motion comprises the rack 66 extending from the lower end of bar 261x and in engagement with the gear 61 loosely mounted on shaft 63. Attached to the gear 61 is a pinion 69 in engagement with a rack 10 on the lower end of the type member 55.

The motion of the designating member 55 is held within a narrow range so that the chart designation may be printed in vertical alignment with the chart graph line without taking up too much room between the upper limits of the graph plotting area and the top of the sheet of the graph paper. The spacing may be noted in Figs. 10 and 11.

Turning now to the explanation of the manner in which several banks or denominations of a data receiving device may position a single line printing member and place a single mark on a graph at a distance from the datum line representative of the value of the data. Noting the first value 5270 plotted at 1I on the sheet 'I2 in Fig. l0, it is seen that the figures in the three highest orders of the value must be taken into consideration when charting the same. Fewer or more orders of numbers could be used, but it is thought that the use of three orders is ideal in giving 999 increments of chart line spacing. The highest order calls for a movement of the chart line to the center of the graph. The second order calls for a further movement two tenths of the distance between the main divisions on the graph, and the third order requires a further movement of seven thousandths of the height of the graph. The result is the line which is marked 1I shown in Fig. 10.

Before describing the devices for charting a multidenominational figure it is well to point out that the graph sheet 12 (Fig. 2a) is printed in an upside down position. The reason for this is because the regular Hollerith form of analyzing mechanism is used. In such mechanism the record cards are analyzed with the index point representing 9 appearing iirst beneath the reading devices with the other values down to 0 being presented in subsequent succession. The type bars coordinated with the system are arranged with 9 type on top and the other type ranging in order down the bars.

In order to print a 9, the bar is lifted one step, and in conforming with this system, the graph is'printed with the higher values at the bottom of the machine, a 9 value being charted by a short movement of the operating bar. When the graph sheet is removed from the machine it may be turned around and then appears in ular form as shown in Figs. l() and It is apparent that the graph may be printed vin upright position in a machine il the type bars are arranged to move in proportion to the value of the numbers (i. e., nine steps of movement `to present a nine type, eight sets oi movement to present the eight type, and so on) as id in the mechanism of many adding and acco machines.

The line printing member GB (Figs. 2, 2a and 6) is pivoted at 13 on a crank 14 which is piu Oted at 15 on the bar member 52. The for d arm of the printing member 69 is provided with a. type face in the shape oi a short horizontal line. A rearwardly extending arm on th meniber carries a pin 16. A roller may be substituted for the pin 16 since this part is cammeo. on most operations of the graph printing mechar' The member 60 may be rocked about pivot but is held in a normal horizontal position by a leaf spring 11 which is fastened on the beneath the pivot 13 and is slidable in a d 1. mounted on crank 14. A spring 'i9 attached to the lower arm on crank 14 normally holds the crank in a position wherein the printing member 60 is held out of printing position. A vertical link 80 is pivoted at 9| to an arm on crank 14, and at the lower end the link is pivotally mounted at 82 on one end of an arm B3 which is iulcrumed at 84 on the member 52.

Cooperating with the link 80 is a hammer 35 pivoted at 86. Because of the parallel linkage comprising link 80, arm 83 and crank 14, the hammer 85 is eiective to push the link B and operate the member B to the right (Fig. 2a) when said member is in any of the various vertical positions. The hammer 35 is guided by slots in a xed crossbar |01 and is shaped with a rearwardly projecting head which is in alignment with link 80, Fig. 2. When the hammer strikes the link, crank 14 rocks clockwise, Fig. 2a, bringing member 60 against the chart paper 12 which is backed up by a platen |23. Member t may be rocked about pivot 13 so as to print a line higher or lower on the graph. The hammer 85 is operated by the bar 502 (Fig. l) on bail 283 in the same manner that the ordinary hammers 280 are operated as explained hereinbefore.

For the purpose of giving the graph printing 60, Fig. 2a, a finer adjustment than that imparted by the nine vertical positions of the highest order member 52, a cam cooperates with the member to rock it as it moves to the right toward the graph sheet 12. In cooperation with the pin 15, Fig. 2a, is a sliding cam plate 81 which is slotted at the lower end to move on a stud 88 mounted at one side of a pair of side frames 92, Fig. 2, and at the upper end the plate slides on a rod 89. Fig. 1, fastened between the two side frames 92. The side frames 92 (Fig. 2a) are slotted to gage a rectangular bar 93 extending across the machine. The frames are also secured by means of screws which enter the rectangular space bar 94. The cam plate 81 slides between the frames and is used to control the positioning of the line printing member 6l). The plate is adjusted un der control of the two lower order members 53 and 54, Fig. 5. A series of cam `faces 99, Fig. 2a, and locating notches 9| are formed in the side of plate 81 for the purpose of adjusting the printing member 60. If the plate is not raised or lowered under control of the lower order members,

the notches 9i are in a position to guide the pin 15 and position the printing member 69 when it moves to the right to print a line coinciding with one or' the nine main subdivisions on the chart.

For example, ii the chart printing devices are controlled to print a mark representing the number 900, the first motion of the pin 16 will be to locate it in the position 16. Then, as the member 60 is pushed to the right by the printing hammer 85, the pin 1B enters the groove 9| towards the end of the printing operation, and the member is thereby located to print a graph mark in an accurate 9 position on the chart sheet 12.

The cam plate 81 is adjusted Linder control of a pair of bell cranks 95 and 95, Figs. 2, 2a and 5, which cooperate with the cam members 53 and 54, respectively. The bell crank 95 is connected to plate B1 by a pin and slot connection 91 and is pivoted at 98 on a floating center mounted on bell crank 96. The Vertical arm of the crank 95 is provided with a roller 99 which cooperates with a slot lill in member 53. The cam slot IDI (Fig. 5) is designed to rock crank 95 in a clockwise direction about pivot 98 as the member 53 is raised to a differential position under control of the record card during item entering or an accumulator during total taking. As the crank 95 is rocked, the plate 81 is lowered gradually to bring one of the cam faces 90, Fig. 2a, into position opposite the pin 16 wherever it may be in any of its ten vertical positions. For example, if the pin is in the nine position 15', the particular cam face 902, which is the second face from the bottom, may be positioned at opposite pin 16 at the position 16', If the member 53 is operated to be positioned in the nine position, the plate 81 is lowered a small amount, but enough to cause the pin 15, wherever it may be, to engage the next higher cam face 90 and notch 9| and thus affect the printing member 60 to rock in a clockwise direction when moved to print, to lower the printing face thereof, and raise the chart line on the graph. For example, if the chart printing devices are conditioned to print a line indicating the number 990, the pin 16 is first raised to the position 16', Fig. 2a, then simultaneous with this motion, the plate 81 is lowered under control of the second order member 53 to move the cam face 992 into the position 9U.

Then as the printing member 5D is urged to the right, the pin 16 is cammed up on the second cam face 992 to raise the rear end of the member 69 and lower the front end to print a line lower on the graph which it will be remembered is placed upside down in the machine, thus, presenting a higher graph indication. Il the member 53 is set to represent a number less than nine, the plate E1 is lowered further and the pin 16 is not camined as far in a clockwise direction about pivot 13, and the effective end of member 60 is lowered accordingly.

The oating center 98 mentioned hereinbefore furnishes a means whereby the lowest order chart printing member 54 may adjust the second order of the devices to raise the plate 81 small dii-fer-` ential amounts so that the lower order values are indicated on the chart. When the floating center 98 is raised under control of the lower order member 54, the crank is rocked in a counterclockwise direction because of the upward movement of the roller 99 in the cam slot lill, Fig. 5. Through the pin and slot connection 91 the plate 81 is lifted through small differential distances to raise the pin 16 in the actuation of the line printing member 60. The bell crank 9S carrying they floating center 98 is pivoted at |02 on the right side frame 92 (see Fig. 2). The vertical arm of crank 96, Fig. 5, carries the roller which cooperates with a slot |03 cut into the lower order member 54. Although the configuration of the slot |03 in member 54 may be designed to indicate regular tenths of a graduation on the graph, the member 54 shown in the disclosure is designed for controlling the lowest orderof graph printing in fractions to indicate eighths. For the graphical representation of tenths, the lower part of slot |03 which inclines to the left (Fig. '1) is extended up further in bar 54 to become active for the first two steps of movement of the bar. Then bar 261e may be equipped with ten stopping teeth as shown'on bars 261a and 26117, in order to give the bar 54 ten diiferential stopping positions rather than eight such positions as shown.

When the member 54 is lifted to the seven position and roller |00 is cammed to the left, Figi 5, the graph printing devices are set to indicate seven-eighths. This movement of the cam slot |03 (Fig. 5) produces a clockwise motion of the crank 96. If the member 54 is moved upward a greater extent, the crank 96 is rocked back in a counterclockwise direction towards the home position because of the change in the angle of the cam slot |03 below the seven position. The farther the member 54 is raised upward beyond the seven position, the more the crank 95 is rocked counterclockwise back towards the normal position, so that when the member is in the upper zero position, the bell crank 96 stands in the normal position. Assuming that thev number 99% is to be plotted, the rst motion of pin 16 is to the position 16', Fig. 2a, under control of member 52, then plate 81 is lowered under control of bell crank 95 which is rocked by the second order member 53, Fig. 5, so that cam face'992, Fig. 2a, assumes the position 90', and then the plate 81 is raised slightly by the rocking of crank 96 by the lowest order member 54, Fig. 5, so that the cam face 902, Fig. 2a, finally assumes the position 90". Thus it is seen that the portions 90, 9 and 'Z/B of the number to be plotted are taken care of by the adjustment of member 50 and cam plate 81 by the members 52, 53 and 54, respectively. After lthese adjustments are made, the printing member 60 is moved to the right by action of the hammer 85, the pin 16 is cammed upward by the cam face 902 in position 99, and the effective end of member 60 is lowered as it approaches the chart sheet 12 so that a mark is placed near the bottom of the sheet in a position to represent the number 99% when sheet is held right side up. An example of the plotting of 'numbers and fractions is shown on the graph in Fig. 11.

From the above it may be gathered that the line printing member 60 is positioned according to the setting of three banks of chart printing devices under control of perforated recorder under control of a total reading device. The highest order bank adjusts the member through a large increment of movement by the lifting of member 52. The second order bank gives the member 60 a secondary adjustment under controlof the cam plate 81. And the lowest order bank gives the member a third increment of movement by the shifting of the floating center 98 and consequent movement of plate 81.

The movement of all three members 52, 53, and

A!! takes place simultaneously, so that an adjustment is prepared previous to the movement of member 60 to the right (Fig. 2a). The differ- I ential positioning of members 52, 53 and 54- is under control of magnets 41a, 41h and-41o which in turn are energized diierentially by plug connections to the lower brushes 9, Figs. 14a and 14h, or connections to total reading contacts ||2, 365 in any bank of the sensingdevices or any order of the totalizers.

In Fig. 2 it is noted that the type carrying heads` |04 on the chart designating members 55 are located directly under and in line with the eifective end of the line printing member B0. Reference to Fig. 2a shows that clearance is provided between the two printing devices so that the line designating a value on the chart may be placed in direct vertical alignment with a name, number, or date identifying the line. The three columns of type |05 may be adjusted to represent data designating the values plotted or data related thereto. It is noted that in the rst column on the chart in Fig. 10 the month designation data JAN is printed in alignment with the chart line. When a single curved line is plotted on a graph, the designating data may identify the value plotted, thus in column lof Fig. 10 instead of printing JAN, the number 521 could be printed to identify the value plotted, or in Fig. Il1, in the iirst column, instead of printing 001, the numeral 97% could be printed. Such arrangements are brought about by Varying the plug wiring described hereinbefore with reference to Fig. 14h. The plug sockets 5| associated with magnets 41x could be connected by plug wiring to the sockets 5| associated with the magnets 41a, 41h and 41e, related to the chart printing devices. However, usually the magnets 411: are lcontrolled by designating perforations on the cards, through plugging from the related sockets 22 to the sockets 2| and the lower brushes.

The three members 55 carry sets of type suited to the nature of the statistical workA to be accomplished by the graph printer. All three sets of type may be digital, or one of the three may be fractional, or the three may represent the various letterswhich comprise the months abbreviations shown at the top of the ,sheet in Fig. l0. When a change is desired from one to the other of the three different forms of designation print,

the operator may either substitute members 55 containing the desired type or replace the entire graph printing unit with another unit containing the required designation type.

The fraction and letter types assembled in members 55 are selected by the ordinary digit perforation positions on the record cards, and they are placed in any of the ten regular positions on the member which is controlled in the usual way. The relative arrangement of selecting perforation positions and type positions may be illustrated diagrammatically as follows:

Fraction type Month letters A N E B P R U Y C L O G P T V C From the foregoing diagram it is apparent that abbreviations of any of the twelve month designations may be printed under control of a card properly perforated in three month control columns of index points. For example, to print SEP it is required that the three card columns controlling the three type members 55 be perforated at the 4, I and 6 index point positions, respectively, from left to right.

Referring to Figs. 2 and 2o, it is noted that a series of hammers are provided to strike against the type |05 and impress the same against the chart sheet 12. These hammers |00 are pivoted at 86 (Fig. 2a) and are operated in the same manner as the regular tabulator hammers. The hammers |06 and 85 are guided at the upper end by a slotted plate |01 tted across the chart printing devices between the side frames 92.

A device is provided to ink the chart printing member 60. Mounted on a hub |09 (Fig. 2) on the left side frame 92 is a cylinder |08 containing a plurality of sectors containing pads ||0, H2 for retaining inking fluid. As shown in Fig. 2a, four of the pads are saturated with different colored inks. The cylinder may be rotated in a clockwise direction (Fig. 2a) by the knob ||3 (Fig. 2) to bring one or another of the segments ||0 into cooperation with the effective end of the printing member 50. When the member is in the home position the type face projects into the pad in one of the sectors. Plain pads I I2 may be interspersed between the colored pads in order to wipe the member 60 clean as the cylinder passes from one position to the other. The knob 3 is provided with designations indicating to the operator what color is selected by the positioning of the cylinder |03. By printing the graph line in different colors, a plurality of curved lines may be plotted on the same graph and distinguished from each other. Thus a comparison may be made between a plurality of charted values such as the example shown in Fig.

wherein the fluctuations in the sales of four different kinds of stocks are shown on the same graph sheet. The graph sheet 12 may be brought back into the initial printing position after the plotting of one series of values to start a secondI curved line. The rewind mechanism affording a means for doing this is described hereinafter.

The chart record sheet 12 is mounted on a frame ||4 (Figs. 2 and 2a) which is removably secured to the main frame ||5 of the machine. The frame ||4 is shaped with a single flat side and two projecting ears IIE, ||1 (Fig. 5) between which the chart paper is carried. A series of slots ||8 in frame I|4 (Fig. 2a) fit into shoulder studs ||9 on the main side frame ||5 and serve to hold the paper frame against the main frame. A latch in the form of a bell crank pivotally mounted on the main frame I I5 is adapted to be operated by hand and swung counterclockwise, Fig. 2a, about the pivot, positioning a horizontal projection on the lower arm of the latch to engage in a slot |2| in frame II4, thus holding the frame down on the shoulder studs.

The chart paper 12 is drawn across the ma chine horizontally in front of the member 60 f and the designating type |05. The sheet 12 (Fig. 2) is drawn from the paper roll |22 and passed in front of the platen |23 and then is brought back between a paper feed roll |24 and a pressure roll |25. bar |26 against which it may be forced to tear it along a vertical line. The paper roll |22 is mounted on a shaft |21 and frictionally connected thereto. The shaft |21 is mounted in hubs fastened to the ears ||5 and ||1 (Fig. 5) and The paper passes a notched carries a knob 36 which may be turned by hand to rewind the graph sheet 12 into position for graph plotting in different color. A pressure roller |28 bears against the side of paper roll |22 and holds the paper taut against the platen |23. The roller |23 is mounted between the bell cranks |29, one of which is shown in Fig. 2 pivoted at |30 on the portion ||6 of the paper frame I |4.

The yielding portion of the vertical platen |23 is mounted in front of a supporting bar |3| which is secured at the ends to the upper and lower portions IIE, ||1 of the paper frame. A casing |32 holds the portion |23 against the bar |3I.

The pressure roller I 25 which bears against the feeding roller |24 is mounted on the end of arms |33 pivoted at |34 on the paper frame portions H5, A spring |35 is connected between the crank |23 and arm |33 to hold the pressure rollers against the paper. The feeding roller |24 is fixed to a shaft |38 which is rotated by ccnnections reaching to the link 336 (Fig. 2a) which, as noted hereinbefore, is lowered and raised by means of the usual paper feeding devices illustrated in Fig. 5a. I'ihe link 336, Fig. 2a, is attached to an arm |39 pivoted at |40. A slot |46 in the arm cooperates with the usual ratchet and pawl devices 309, Fig. 5, associated with the regular record printing platen 263. A link |4| attached to the arm, connects the regular paper feeding devices to the chart paper feed mechanism. At the upper end of link |4I, Fig. 2a, there is attached the horizontal arm of crank |42 which is pivoted at |43 on the main frame ||5. The vertical arm of the crank |42 (Fig. 2) cooperates with one arm of a bell crank |44 pivoted at |45 on the portion ||5 of the paper frame |I4. The other end of the crank |44 carries a feeding pawl |41 pivoted at |40 and cooperating with a ratchet gear |53 connected to the shaft |38 carrying the paper feed roller |24, A spring |52 holds the pawl against a pin |58 in normal position, and also holds the pawl retracted with the crank |444resting against a stop pin |49 on the frame H3. An alignment roller |55 in cooperation with the teeth on ratchet gear |53 is mounted on an arm |54 pivoted at |56 on the frame portion IIii. A spring |51 holds the aligning roller against the ratchet gear. As the gear is rotated in a counterclockwise direction 2), the roller |55 acts to align the feeding roller and limit the feeding motion to a. uniform amount.

If it is desired to disable paper feeding, the pawl I 41 may be moved out of cooperation with the ratchet gear |53. A lever cooperating with the side of pawl |41 is pivoted at |5I and may be rotated in a clockwise direction and frictionally held in a position to force pawl |41 out of operative position. The feed roller shaft |38 extends beyond the top of the frame and ends in an adjusting knob |31, Fig. 5, which may be turned manipulatively to feed the graph sheet.

An inking ribbon |30 (Figs. 2 and 2a) is mounted between the type |05 and the platen |23. The ribbon is wound on a pair of spools |02, supported on shouldered studs |63 mounted on the top of frame portion H5. A pair of guide studs II on the frame, position the inking ribbon with respect to the chart record sheet 12. Any of the many well-known forms of ribbon feeding arrangements may be used to revolve the spools |02 or they may be turned by hand to bring a fresh portion of the ribbon adjacent the type |05.

In Figs. 3 and 4 there is shown a modification for the use of the devices of the present invention in the plotting of polar coordinates. The printing devices are similar to those described hereinbefore, the difference in structure residing y in the rotation of a circular graph sheet, instead of the linear motion of the rectangular chart sheet. The circular chart |65 is secured to a disk |66 which is pivotally mounted on a bracket |61 secured to the top of frame portion I I6 similar to the frame portion H6. A ratchet gear |53', similar to the ratchet gear described in the foregoing section of the description, is secured to the lower end of a vertical shaft |38 which at the upper end terminates in a bevel gear |68.

The gear meshes with a gear |69 mounted on a horizontal shaft |10 secured to the disk |66. The connections between the paper feeding link 336 (Fig. 2a) and the ratchet wheel |53 (Fig. 3) are similar to the connections already described i with reference to Figs. 2 and 2a. Thus, for each feeding motion of the link 336, the disk |66 is revolved with uniform angular spacing, the major divisions of said spacing being shown in Fig. 4. As the chart |65 is turned into position in front of the chart printing member 60, the markings 1|' may be imprinted thereon to represent the variations in data registered on perforated record cards, or contained in a series of totalizer wheels.

From the description appearing hereinbefore, it may be gathered that the record sheet 150 and graph sheet 12 are fed simultaneously to receive the graphical impression and the numeral printing impression from the recording devices in the machine. If the machine is operating under tabulating control, the record sheet and graph sheet are both held from being fed While accumulation takes place. Then, during the printing of the total, both sheets are in position to` present a plain space for the recording of the totalized information.

Because of the flexible nature of the control for the chart printing devices, many useful methods of plotting in various forms may be evolved. These results are brought about by arranging the control cards, placing special perforations in the cards, exercising group control under control of such special perforation, and also by wiring the control magnets 41a., Hb and 41o in various Ways to the different denominational orders of the accumulators, or direct to the columns of sensing devices cooperating with the record card. A few illustrations of the various uses of the device are given hereinafter The characteristic bell-shaped graph of a frequency distribution curve may be plotted under control of the perforated records with the tabulator set for group control. For such charting control, the record cards are all perforated toI represent unity in one column on the card. The cards also carry record characteristic perforations which cooperate with the group control devices. The cards of the related characteristics are counted on an accumulator, and then, upon change of characteristic, the total number representing the frequency of some occurrence is printed on a record sheet with a numerical notation and represented on a graph sheet with a portion of a curved line.

The chart printing devices may be controlled by the record cards to print a trend line. To do this, the record cards are perforated with successively higher Values and arranged in ascending or descending order, each card differing from the next byan 4equal increment of value, the lowest or highest value of the series beginning or ending the series of records. When the machine is operated under control of such a group of records, a straight line such as the trend line illustrated in Fig. 1l is plotted on the graph sheet 12.

The devices may be used to chart the variation of an index number over a period of time. The index number may be a result of a plurality of commodity prices. The control is secured by perforating a separate card for each commodity with the value of the commodity for a certain period. The period is taken as the group number and the group control devices are set to total the various commodity prices. The total may be made up of the values of ten or one hundred items comprising the index. The index number may be arrived at by dividing the total by ten or one hundred, by shifting the plugging one or two banks towards the higher order of the accumulators. Thus, after totaling and dividing the totals of the values of various periods, a curved line may be plotted representing the variation of the index number over a period of time.

It may be desired to weight the values to be plotted before they are placed on the graph sheet. A seasonal variation is sometimes taken into consideration in the plotting of actual values. To do this, the cards containing the actual values are interspersed between cards containing the Weighted values and group numbers similar to the group number on the card with the actual values. The machine is adjusted for tabulating, and the group control devices serve to total the actual values with the weighted values before the plotting of the composite items in a curved line on the graph.

A mathematical equation may be plotted by the chart printing devices under control of perforated and blank record cards. In such equations the point on the curved line is usually indicated by a certain spacing along the horizontal line called the abscissa and another spacing in a vertical direction called the ordinate. To get such spacing, according to the devices described, blank cards may be used to secure idle operations of the machine accompanied with horizontal chart spacing operations. After moving the chart sheet in a horizontal direction. the vertical spacing of the point is secured by the value perforated in a record card under controll of the chart printing devices described hereinbefore. Thus, to get a change in plotting position, extra blank cards are inserted before the card containing the perforated value; and idle paper spacing operations feed the chart sheet over to the vertical column for recording the value by a marking at a differential distance from the datum line.

Thus, to indicate the point, efe, F2, in rectangular coordinates, four blank cards may be inserted before the card containing the value two in the form of a perforation. The result will be a plottedline five spaces to the right and two spaces above the origin on the chart.

Balances may be charted by the use of cards perforated with complements of amounts to be subtracted from other amounts added in the accumulators. The complementary and actual value cards are accumulated in the accumulator under group control, and then when a total is taken, a chart line is plotted representing the balance resulting from the accumulation of the negative and positive amounts on the plurality of cards.

Since the basic novel features of the invention are shown and described, it will be understood that various omissions, substitutions and changes in the form and details of the device illustrated, and changes in operation may be made by those skilled in the art without departing from the spirit of the invention. It is the intention, therefore, to be limited only as indicated by the scope of the following claims.

What is claimed is:

1. In a device for printing graphical records. a plurality of differentially adjusted print controlling elements, a coordinate mark printing member mounted on one of said elements, a cam for adjusting the position of said member on said element to put it in one of several printing positions according to the differential adjust ment of the other of said elements, and means for moving said cam under control of the other of said elements.

2. In a device for printing a graph record, a plurality of different denominational order print controlling elements, means for adjusting said elements to represent numbers, a line printing member pivoted on the highest order element, means for feeding said record in front of said member, means for impressing the member against the record, means for adjusting said member about its pivot before impressing it against the record, and means for operating said adjusting means under control of the lower order elements.

3. In a record controlled machine for printing a graph sheet with a horizontal datum line, a plurality of means for sensing indicia on said records representing numbers and related designation data, devices under control of the record sensing means for entering the numbers and items of designation data associated with said numbers, a line printing means, means under control of certain of said entering devices for printing said line printing means to print a line on said sheet to represent each sensed num ber graphically, said line being located vertically a differential distance from said horizontal datum line and thus representing a number, other printing means under control of other of said entering devices for printing the items of designation data in vertical alinement with the related graph lines and in xed relationship to the datum line, and means for producing a feeding movement of said sheet between item printing operations.

4. In a machine of the class described, devices for entering three parts of related data, a movable bar, means under control of one of said entering devices for adjusting said bar, a mark printing member loosely mounted on said bar, a second means under control of another of said entering device for adjusting said member on said bar, a third means under control of the third of said entering devices for adjusting part of said second adjusting means to give said member a further adjustment, and means for impressing said member against a record sheet to print a mark which is representative of all of said data by virtue of its position on said sheet.

5. In a record controlled accounting machine, means for sensing said records and initiating a plurality of differentially timed electrical impulses representative of a plurality of characters, a member for printing graphically on a graph sheet, instrumentalities for adjusting said member, and a set of devices each under control of one of said electrical impulses for cont: lling said instrumentalities to cause said printing member to print a mark located to be a graphical representation of said plurality of characters.

6. In an accounting machine for printing a graph sheet, means for initiating a plurality of differentially timed electrical impulses representative of predetermined data composed oi a plu rality oi characters, a plurality of devices each adjusted under control of one of said electrical impulses to extents representative of said characters. a printing means for making on the graph sheet a single graphical mark representative of said characters, means under control of said devices lor positioning said printing means differentially to locate said printing means in a printing position which is representative ol said data, and means for actuating said printing means while it is located diii'erentially.

7. In a machine for printing a graph sheet, devices for automatically entering separately the denominational digits of a plural ordered number, other devices for automatically entering data related to said number, a mark printing member with an extending end, means coupe"- ating with said extending end of said member for printing graphically on said sheet, character printing devices mounted in alinement with said extending end of said mark printing member, means under control of seid number entering devices for adjusting said mark printing member according to the value of the plural ordered number to position the member so that a mark printed thereby will be located to be representative of said plural ordered number, means under control of said other data entering devices for adjusting said character printing devices according to said related data, means for operating said positioned member to print, and means for op erating said character printing devices. whereby each item of said related data is printed on said graph sheet in a position indicating an association with a graphical mark representation of the plural ordered number printed by said mark printing member.

8. In a record controlled machine for printing on a graph sheet provided with a horizontal datum line, devices for sensing indicia on said records representing numbers and associated designation data, devices under control of said sensing devices for entering a plural ordered number and an item of designation data associ ated with said number, means for printing a graph line on said sheet, character printing devices mounted in alinement with said line printing means, means under control of said number entering devices for adjusting said graph line printing means vertically a diflerential distance from said horizontal datum line according to the size of the plural ordered number entered to locate the graph line vertically a diiierential distance from said datum line, means under control of said data entering devices for adjusting said character printing means according to the designation data entered, means for impressing the graph line printing means against the graph sheet, means for taking an impression from the character printing means on said graph sheet, means for feeding said sheet once for each number and data entering operation, after operation of the graph line printing means and character printing devices, whereby a series of graph lines are printed on said sheet to represent the num-

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