US2274053A - Tabulating machine - Google Patents

Description

Feb. 24, 1942. v J. T. FERRY 2, 7

'I'ABULATING momma Filed Aug. 26, 1937 8 Sheets-Sheet 1 .mveuro JOHN T. FERRY Feb. 24, 19421 J. 1'. FERRY 2,274,053

momma mama Filed Aug. 26, 1937 8 Sheets-Sheet 2 I 5 Q P- mvzm'on JOHN T. FERRY adj/44h Feb. 24, 1942. J. TqFERRY TABULATING MACHINE Filed Aug. 26, 1 937 8 Sheets-Sheet 3 I) M N JOHN T. FERRY BY Q4 I h A TORNEY Feb. 24, 1942.

J. 'r. FER R Y TABULATING MACHINE 8 SheetS -Sheet 4 Filed Aug. 25, 1937 IN VENTO R JOHN T. FERRY ORNEY J. 'r. FERRY TABULATING MACHINE Feb. 24, 1942.

Filed Aug. 26, 1937 8 Sheets-SZhept 5 INVENTOR JOHN T. FERRY ATTORNEY v F 24, 1942- J. 'r. FERRY 2,274,053

uauwrmc MACHINE Filed Aug. 26. 1937 a Sheets-Sheet 6 nae ' INVENTOR JOHN T. FER RY 1942- J. T. FERRY TABULATING MACHINE Filed Aug. 26, 1937 8 Sheets-Sheet 7 FIG.7.

mvzmon JOHN T. FERRY A ORNEY Feb. 24, 1942. J. T. FERRY 2,274,053

TABULATING MACHINE Filed Aug. 26, 1937 8 Sheets-Sheet 8 MAN NO.- GROSS SOCIAL SECURITY EARNINGS DEDUCTION lzao |zo.|o L204F3I I23! 135.50 ucIooI TOTAL I CONTROL 12 32 00.59 I pop oo:

I233 00.40 SADDEDIN THIS ORDER I .00 0 o: la 00.00 on PRELIMINARY LOOII I TOTAL- STROKE. FINAL 4 I 0 was: commas TOTAL uo-r PRINTED- FIGJI.

FIG.8.

mvzu'roa JOHN T. FERRY Iav Patented Feb. 24, 1942 'ranom'rmo MACHINE John T. Ferry, Ilion, N. Y., a sslgnor to Remington Rand Inc., Buffalo, N. Y., a corporation or Delaware Application August 26, 1937 Serial N0. 161,081

7 4 Claims. This invention relates generally to tabulators capable of performing successive minor and major.

total taking operations automatically from a single change in designating matter, and more particularly to a machine of this type wherein a minor total taking operation may be rendered ineffective to control the computing mechanism of 235-61.!5) I I field 2 with the amount of wages due the employee for the day. At the end of the week, the

the machine for total taking, and instead cause I the entry of an unchanging definite amount into a predetermined accumulator during the machine cycle in which the minor total taking operation would normally take place.

An accounting problem which may be carried out on the machine of the present invention is the problem of computing the tax to be paid by employees under the provisions of the Social Security Act and of computing the total wages paid by an employer for the purpose of determining the tax to be paid by the employer under the provisions of the same act. -This act provides that each employee shall be taxed to the extent of one per cent of his wages over a certain period and that his employer shall also be taxed one per centtof the gross earnings of his employees. A further provision of the act requires that when an employees salary is composed of a certain number of dollars and an additional fraction of a dollar the employee shall pay a tax based upon the next higher even dollar wage only if the fraction of a dollar be fifty cents or more. For example an employee who earned a taxable wage of $15.80 would pay a tax based upon a wage of $16.00 and would have sixteen cents deducted from his wage, but if he earned only $15.20 he would pay a tax based upon a wage of $15.00 and would pay only fifteen cents tax. It is evident that in the case of large corporations or firms having a great number of employees the preparation of a report stating the wages paid to each individual employee for a certain period, the tax to be deducted from such wages, and the gross earnings of all the employees would necessitate a great amount of labor and the expenditure of a considerable amount of time when done by hand.

The machine of the present invention p'rovides a means of mechanizingthe preparation of the above report through a system of punched card accounting. Assume for the sake of illustration that the company applying this system pays its employees on a piece work or hourly basis. At the end of each day a record card ispunched for each employee with the perforations therein divided into two fields,

Field I is punched with the social security number of the employee and cards representing the daily wages earned by all of the employees during that week are assembled and run through a mechanical sorter thereby arranging the cards in groups according to their various social security or designating numbers. The cards are now ready to be placed in the tabulator which produces a report sheet on which will be printed on a single horizontal line, the employees social security number, his total wages for the week and the exact amount of the deduction to be made. Ther will likewise be printed on the report sheet the total wages earned by all of the employees during the week from which the tax to be paid by the employer may readily be determined by inspection.

The mechanism of the invention disclosed herein is mounted in a standard Powers type tabulator similar in its general construction and operation to machines disclosed in numerous patents and-"previous applications owned by the assignee of the present application. The card feeding and analyzing mechanisms of the Powers machine,

for example, are disclosed in the patent to William W. Lasker, No. 2,044,119 issued June 16, 1936. An original form of the adding and printing mechanism used herein is disclosed in the patent to James Powers, No. 1,245,502 issued Nov. 6, 1917, and earlier still in the patent to Hubert Hopkins, No. 1,039,130 issued Sept. 24, 1912.

The machine of the present invention is, like the standard Powers tabulator, equipped with a plurality of computing units, each comprising a printing unit and an associated standard accumulator. In carrying out the present invention, three of the usual seven computing units of the standard Powers tabulator'are employed, and,

though any desired three units may be used, it will be assumed for convenience of description that units I, II, and III are utilized in carrying out the invention. Each of these three units is provided with a front or group total accumulator while unit II is also provided with a rear or grand total accumulator. All of these accumu- One lators are normally conditioned to add. computing unit, preferably unit I, is actuated directly from field l of the cards and serves to print the designation number of each separate group of cards or, what is the same thing in the present instance, the social security number common to each employees group of cards. By a method of non-print control, unit I is permitted to print only on the first machine operation following a total-taking operation, or a grand total taking operation, and accordingly each employees social security number isprinted from the first card of the employees group of cards.

The social security number from each oi the remaining cards in the group is accumulated by the front or group total accumulator of unit I, but printing of the accumulated numbers is suppressed. When the cards of a particular employee for a weekly period have been tabulated, the machine enters upon a group total taking operation. During this operation ,'a total is taken from the front or group total accumulator of unit I and the accumulator i'sthen cleared, but the printing of the total thus taken is suppressed. At the end of the group total taking operation, the front or group total accumulator of unit I is conditioned to receive the social security number from the first card 'of the 'following group of cards and to print this number on the report sheet. ,Field 2 is connected, by a method of Y wiring in the translator, to computingunits II and III so that the data in this field, that is,

the daily wages of each employee, is entered.

simultaneously into these two separate units. The weekly wages of an employee are thus accumulated in the front or group total accumulator of units II and III and in the rear or grand total accumulator of unit II. The daily wages of the employee received from each card of an employees card group are not printed by units 11 and III, for, by a method of non-print control, printing of the amounts received from the individual cards of a group is suppressed. But when the cards of a particular employee for a weekly period have been tabulated and the weekly wages of the employee have been accumulated in the front or group total accumulators of units II and III and in the rear or grand total accumulator of unit II, a group total taking operation is,initiated during which a total is taken from the front or group total accumulators of units II and III but not from the rear or grand total accumulator of unit II. The non-print control for units II and III is set to permit the totals thus taken to be printed, but th printing hammers of the two lowest denominational orders in unit 111 are prevented from printing with the result that printing of the two lowest denominational orders of the total from the front or group total accumulator of unit III is suppressed. As a result of the suppression of the printing of the two lowest denominational orders of the total representing the weekly wages of the employee, the total actually printed from unit III represents one per cent of the employees weekly salary or the amount of his social security deduction for the week. Thus, if an employees weekly salary, as accumulated in the front accumulator of unit III, is $25.10 and the printing of 'the two lowest denominational orders of this figure is suppressed,

an amount of $.25 is total printed from unit III.

This amount obviously represents the employee's social security deduction for the week.

to be printed from the front accumulator of unit.

To enable the proper social III during a group total operation, it is necessary to carry 5 to the tens denominational order of this accumulator before the total from this accumulator is printed. Thus, if the total of an employees weekly wages, as accumulated by this accumulator, is $25.80, a 5 must be added to the tens denominational order of the accumulator, leaving a total of $26.30 standing therein, or ii the total is $25.10, a 5 must be added, leaving a total of $25.60 standing therein. Then when the first group total is printed from the front or group total accumulator of unit III, an amount of $.26 will be printed, which is the proper social security deduction for a weekly salary of $25.80, and when the second group total is printed, an amount of $.25 will be printed, which is the proper social security deduction for a weekly salary of $25.10.

The operation of carrying this additional amount of 5 into the tens denominational order of the front or group total accumulator of unit III is efiected in the following manner. The Powers machine is provided with an automatic total taking control mechanism, the operation oi which is initiated automatically upon a change in designation. A means is provided whereby this mechanism may be caused to perform either a single operation or two successive operations upon a change in designation. During the first of two successive operations. this mechanism initiates a grouptotal operation and during the second of such operations it initiates a grand total operation. In the present machine, this means is set to cause two successive operations of the total taking control mechanism upon a change of designstion or social security number. Instead of initiating a group total operation, however the first operation of the total taking control mechanism causes the entry of a "live" into the tens denominational order of the front or group total accumulator of unit III, thereby conditioning said unit to print the proper social security deduction during a group total operation, as has been previously explained. The second operation of the total taking control mechanism, instead of initiating a grand total taking operation, initiates a group total taking operation during which a group total is taken from theiront or group total accumulators oi. units I, II, and III and during which these accumulators are cleared. As previously explained, printing of the'total taken from unit I is suppressed, and printing of the two lowest denominational orders of the totals taken from unit III is suppressed, but the balance of the total taken from unit III and the total taken from the front accumulator of unit II are printed. It will thus be evident that the employees weekly wage is printed from the front accumulator of unit IIand the employees social security deduction is printed from the front accumulator of unit III during the group total operation initiated by the second operation of the total taking control mechanism, while the employees designation or social security number is printed from unit I during the cycle in which the first card of the group representing the employees wages for a weekly period was sensed. The machine is provided with the usual line-space mechanism for spacing the report sheet. This mechanism is set so that it does not operate to advance the report sheet when the employee's social security number is printed, but operates to advance the report sheet only after printing has been eflected during a total or grand total taking operation. It is thus evident that the designation or social security number printed from unit I, the employee's total weekly wage printed from unit It and the total ployees is accumulated in the rear or grand total accumulator of unit II. A grand total is taken from this accumulator under control of a special control which initiates a single operation of the previously mentioned total taking control mechanism during which a grand total taking operation is initiated instead of the usual group total operation.

After each group of cards representing the week's work of each employe has been tabulated it is evident that the amount contained in the accumulator associated with unit 111 should be the amount of his total social security deduction, and that the amount contained in the front accumulator associated with unit II will be his total wages for the week. If, however the amount present in units 11 and 111 includes a fraction of a dollar and that. fraction exceeds forty-nine cents then the amount printed in unit III would not be the true social security deduction. For example the amount $25.80 would be printed in this unit as 25 (last two orders being blank) which would be incorrect,

The mechanism of the invention, although operable by the total control mechanism is mounted in the translator unit of the machine. A simple manipulative means is provided whereby the mechanism for carrying a five" into the tens denominational 'order of the front or group total accumulator of unit III may be disabled or, if desired, the entire translator may be removed and replaced by one of a different construction if the machine is to be used for a different work. For convenience in referring to the carry mechanism of the present invention, it seems desirable to term it a total carry mechanism to distinguish it from the usual tens carry or tens transfer mechanism which operates during tabulating cycles of the machine.

One object of this invention is to effect automatically, and through entirely mechanical means, the entry of an unchanging definite amount into an accumulator after each group listing operation of a tabulator.

Another object of this invention is the proin right-hand cross section through unit II of I the entire machine.

Fig. 4 is ,a view of the rear of the translator showing the arrangement of wires therein and the position of the several machine units.

Figs. 5 and 6 comprise a composite view in exploded isometric of the total control mechanism.

Fig. 7 is a view in right-hand cross section of the mid portion of the machine showing the chain'of mechanism operable to effect the total carry operations. The section is taken through unit III of the translator just in front of the column of second lowest denominational order.

Fig. 8 is a detailed view of the head of the total link.

Fig. 9 is an enlarged detailed view in righthand side elevation of the rear of the translator.

Fig. 10 is a detailed view of the adjustment plate on the head of the total link.

Fig. 11 is a view illustrating a typical report sheet with certain explanatory notes and dia- In the structural description to follow, reference is made at several points to the act of automaticall initiating an operation of the total taking control mechanism. For purposes of brevity, this act is frequently referred to as tripping a total. It will be understood, therefore. that in the following description each occurrence of the phase "tripping a total, or its equivalent, indicates the automatic initiation of the total taking control mechanism.

Maonrm: OPERATION ception of the. above mentioned alterations in the total control unit and incidental changes necessary to permit theus'e of -column cards in the present machine, the mechanism of the base herein is the same as that disclosed in the Lasker Patent 2,044,119. The present invention is aimed at a method of executing an automatic total carry so that the major portion of the description will be devoted to that. operation. Before entering into a detailed discussion of the above mechanism, however, a brief summary of the general features of construction and operation of the well known Powers machine will be given.

The machine itself is generally considered as being dividedinto three cooperating sections or parts. First of all the base (Figs. 1 and 2) where the card feeding, analyzing, and total tripping operations occur; then the intermediate section (Fig. 2) comprising chiefly the translator which is a unitary removable structure containing wires arranged in any suitable mannerto transmit the data on the cards into the desired computing units; and lastly the head section (Fig. 3) in which is mounted the adding and printing mechanism of the machine. The machine is power drivem usually through an electric motor (not shown), and contains a pair of constantly rotating shafts i and 2 (see Figs. 1 and 3 respectively). The shaft I may be called the mainbase shaft since it controls all of the positively driven operations in the base. while shaft 2 performs a similar function to some extent in the head of the machine.

therein the card magazine 3 in which is placed the stack of cards to be tabulated. The cards are adapted to be fed seriatim from the magsline into position for sensing by a picker knife and block 4, controlled by acam 200 fixed to the shaft I, and a pair of power driven feed mils 5. The picker knife and block 4 is connected by a link 20! to an arm 202 which is fixed to a rock shaft 203 (Figs. 1 and 6). The shaft 203 is rocked cyclically by the cam 200 through an arm 204 (Fig. 5) connected by a link 205 to an arm 20!; fixed to shaft 203. The arm! carries a follower 201 which cooperates with cam 288 with which it is held in engagement by a strong spring 208 connected between arm 206 and the frame. In sensing position the card lies between a pair of perforated plates 6 and limits against a reciprocating card stop 1 controlled by a cam 2G9 fixed to shaft I. The card stop I is controlled by the cam 209 through linkage now to be described. A pivoted arm 2 I (Fig. carrying a follower 2II cooperating with cam 209, is connected by a link 2I2 to an arm 2I3 fixed to a rock shaft 2I4. Also fixed to the shaft H4 is an arm 2I5 (Fig. 6) connected by a link 2I6 with a lever 2|! which has its free end projecting into an opening in a bracket supporting the card stop I. It will be understood that the linkage consisting of elements 2I5, 2 I6, and 2H, showninFig. 6, is duplicated at the other side of the card stop I. From the description of the linkage controlled by cam 209, it will be evident that the card stop I is cyclically lowered and raised by the cam 208, thereby arresting each card in the sensing chamber just before the data recorded on the card is sensed and permitting the card to be ejected from the sensing chamber after the sensing operation has been completed. The card is adapted to be read by a plurality of pins 8, arranged in 45 columns of I2 pins to the column, all of the pins being supported in a vertically reciprocal pin box 8. The means for effecting the vertical reciprocation of the pin box 8 (Fig. 1) includes a pair of eccentrics II (only one shown) fixed to the shaft I and a pair of eccentric straps IIa (only one shown), each of the latter having one end surrounding a corresponding eccentric II and another end connected to a pin (not shown) pivoted in a casting (not shown) attached to one side of the pin box frame. At those points of the card which are perforated the pins 8 associated with these perforated points pass through the card during the upward travel of the pin box 8 and elevate a corresponding intermediate pin I2. The pins I2 are equal in number and arrangement to the pins 8 and there is assodiated with each column a pair of locking slides I3 and a pair of change of designation slides I4. The function of the slides I3 is to lock in raised position all of the pins I2 which have been elevated by corresponding sensing pins 8. The slides I3 are retracted once for each machine cycle by a bail I5 controlled by a cam 2I8 (Fig. 5) fixed to shaft I. Cooperating with the cam 2I8 is an arm 2I9 pivotally mounted on a stud 228 and carrying a follower 22I. Connected to the free endof arm 2I9 is a vertical arm 222 cooperating with a horizontal arm 223 which is fixed to shaft 224. Also fixed to shaft 224 is a pair of bail arms 225 (Fig. 6) carrying the bail I5 which abuts against the rear end of each of the locking slides I3. The slides I3 are normnally urged towards their looking position or towards the rear of the machine by the individual leaf springs 226 which form part of a comb spring extending across the rear of the slides I3. It will be evident from the foregoing description that once during each machine cycle, the cam 2! effects the actuation of the bail I5, thereby retracting the slides l3 against the action of the leaf springs 226 and releasing any intermediate pins I2 which may previously have been locked by the slides I3 in their elevated position. The retraction of slides l3 ocdescend. The slides I4 cooperate with each column of pins I2, in a well known manner, to trip a total whenever a change of designation occurs in a manner later to be described. Positioned just above the intermediate pins I2 is a translator I6 which supports a plurality of Bowden wires Il one of which may be associated with each pin I2. The translator of the present machine contains certain novel mechanism necessary to the operation of inserting a predetermined amount in the tens denominational order accumulator wheel in the front accumulator of unit III during the total cycle preceding a grand total cycle and will be described in considerable detail further on. For the present it may be merely said that the elevation of a pin I2 will press its corresponding Bowden wire IT to cause the elevation of the proper digit stop I8 (Fig. 3) in whichever of the various units the actuated wire II extends. The present machine operates on 90-column cards through the use of the familiar six point two hole code so that six pins 8, six corresponding pins I2 and six wires I'I represent one column of a card. The sixth point of each column, however, is used only as a control hole so that five translator wires per column are suflicient to represent the numerals 1 to 9. The above mentioned digit stops I8 of each unit are arranged in a basket I9 supported in a common stop tray or frame 2|. One stop basket I8 usuallysupports 10 columns of stops I8, each column being composed of five digit or numeral stops and a normally effective zero stop 22. The present, invention requires three such units. A stop basket of the 90-column type used herein is disclosed in the patent to Lasker No. 1,780,621 issued Nov. 4, 1930. Each of the zero stops 22 is resiliently connected to a bell-crank 23 spring tensioned to move in a clockwise direction (Fig. 3) and so hold its associated zero stop elevated. Th stops 22 are adapted to be lowered at the start of the machine cycle either individually during tabulating operations, through a slide 24, or as a group during total taking operations by a bail 25 supported between a pair of arms 26 (one shown) secured to a shaft 21. The shaft 21 is adapted to be rocked, in a manner later to be described, only during total taking operations. The stop basket illustrated herein and that disclosed in the above patent are generally the same in principle of. operation. There are, however, a. few points of structural difference between the two baskets. In the present construction, the nine", or left-hand stop I8 in each column is formed with a laterally extending pin I8A which normally rests in a notch cut in a fixed arm I8B. Elevation of a nine" stop will dislodge the pin IIA from its notch and permit that column of stops to 7 shift a short distance forwardly when contacted by an associated actuating rack. A spring pressed arm I8C operates upon another pin on each of the nine" stops I8 and serves to restore its associated nine stop to normal. Positioned just above each column of stops I8 is an actua-ting sector 28 which, along with its associated type sector 28, is pivoted on a shaft 3| supported between the side frames of the machine. The type sectors 23, and the actuating sectors 28 secured thereto, of each unit are tensioned to move in an upward clockwise direction about their pivot 3| by springs 32 but are normally retained in retracted position by a bail 33 supported between a pair of arms 34 also pivoted on the shaft 3|. The bail 33 is normally held in retracted position by a link 35 connected to one of the arms 34 and extending towards the rear of the machine where its far end is resiliently connected to a lever 36 secured to a rock shaft 31. A strong spring 38 tensioned between the framework of the machine and the link 35 holds the link retracted. Two links 36 are provided for each computing unit, each link being connected to one of the arms 34 which carry the ball 33 for the unit. The shaft 31 is given a reciprocable rocking motion once for each cycle of the shaft 2, 'so that during the first 180 of rotation of the shaft 2 the bail 33 is driven forward positively thus permitting all of the sectors 28 and 29, which are not retained at zero by the stops 22, to follow under tension of their springs 32.. During the second 180 of rotation of the shaft 2 the ball 33 returns to normal, under tension of the spring 38, thereby restoring all of the released sectors to normal. The shaft 31 is rocked by the shaft 2 through a linkage which has long been employed in Powers tabulators in commercial use. This linkage is disclosed in Fig. of the application of J. M.-McDonnell, S. N. 156,304, filed on July 29, 1937. As this linkage forms no part of the present invention, it is not illustrated herein. Each of the type sect'ors 29 has ten type elements 39 mounted'thereon, which, during listing operations are variably positioned at the printing line according tothe setting of the associatedcolumn of-digit stops l8. The type elements 39 are adaptedto be struck by hammers 4 I, released by an extension 42 on one of the pair of links 35, to effect printing against a platen 43. The extension 42 is connected to an arm 221 fixed to a rod 228 which carries the usual hammer latch releasing bail (not shown). At the proper point in the cycle, the link 35 and its extension .42 rock the rod 226 in' a clockwise direction,

thereby releasing the printing hammers 4| in a well known manner.

Pivotally mounted on a. rod 229 above the printing hammers 4| of each computing unit are a plurality of non-print latches 236 individual to the printing hammers 4| of the unit. Pivotally mounted on the outside of the end printing hammers 4| of each computing unit is a pair of bail arms 23| (only one shown) carrying a bail 232. The bail III are spring-biased in a clockwise direction the bail 232 "normally resting against the. end of the non-print latches 230, as shown'in Pig. 3. .To disable any-printing l hammer of a pamticular computing .unit, the

bail 232 is moved'in a counter-clockwise direction manually and the corresponding non-print latch 230 is moved manually in the same direction to position its end 233 in a notch 234 of the printin hammer u. The bail 232 is then released to hold the non-print latch in-e'ifectiveposition. when the printing hammers of this particular computing unit are released by. the rocking of rod 228, the effective non-print latch 236 prevents the printing hammer from striking the type which is then in printing position. From the foregoing description. it will be evident that printing in the two lowest denominational orders of unit III may be suppressed by manual manipu- The cam arms 46 are adapted to be rocked at variable points in the machine cycle so that the, wheels 44 may engage the sectors 28 either on the return stroke of .the sectors or on their forward stroke. During listing or adding operations the wheels engage their racks at the-beginning of the return stroke and are turned away from zero a number of tooth spaces proportionate to the distance required for the sectors to return to normal. During total taking operations the wheels engage the racks 28 at the beginning of the forward stroke and rotate in the opposite direction until they clear by reaching zero. The cam arms 46 receive their actuation from a rock shaft 48 through a chain of mechanism comprising arm 49 on shaft 48, link 5| connected to arm 49, arm 52 As previously explained, each of the units I, II

and III is provided with a front or group total accumulator 44, while unit II is also provided with arearorgrand total accumulator 59 (Fig. 3). The accumulator timing may best be described in. connection with Fig. 3 which illustrates the front and rear accumulator of unit II, for the front accumulators of units I and III are similar in their timing to the front accumulator of unit II.

The front accumulator 44 *(Fig. 3) is normally in add condition. When the front group total shaft 56 is in unrocked position, a spring (not shown) holds the bell-crank 51 rocked in a counter-clockwise direction with the front edge of the upright arm of the bell-crank limiting against a pin in an arm 235 fixed to the front group total shaft 56. When the bell-crank 51 is in this position, the link 236 holds the pitman in its raised position wherein the upper pin in the crank arm '54 engages a notch in the upper edge of the pitman. The front accumulator 44 remains in add condition as long as the upper pin in the crank arm 54 remains in engagement with the upper notch of the pitman 55. With the front accumulator 44 in add condition, the shaft 48 is rocked in a counter-clockwise direction before the ball 33 is advanced to permit the forward movement of the type sectors 29 and the rack sectors 28. Through the previously described linkage, the

rocking of shaft 48 rocks crank arm 54 in a clockwise direction, thereby shifting the pitman 55 rearwardly and disengaging the front accumulation of the non-print latches 236 in the two lowest denominational orders of this unit. J

The actuating sectors 28 cooperate in a well lator 44 from .the rack sectors 28.- After the disengagement of the front accumulator 44 from the rack sectors 26, the bail 33 is advanced thereby permitting the type sectors 29 and the rack sectors 28 to be moved forward until they are arrested by the engagement of a heel on the rack sectors 28 with a raised stop i8. At the end of the first half of the cycle, after the type sectors 29 have been set, the extension 42 rocks rod 228, thereby releasing the printing hammers 4| and permitting printing, unless printing is otherwise suppressed. Before the rack sectors 28 and the type sectors 29 are returned to their normal position by the bail 33, the shaft 48 is rocked in accumulator 44. It will be understood that the,

usual tens transfer mechanism is associated with the front accumulator 44 whereby a tens carry is made to an accumulator wheel of higher denominational order when the accumulator wheels of the next lower denominational order pass through zero. The tens transfer mechanism em- 1 ployed may be the same as that disclosed in the previously mentioned Hopkins Patent No. 1,039,130, in the Powers Patent No. 1,245,502, or in the Lasker Patent No. 2,151,406.

To condition the front accumulator for totaltaking the front total shaft 55 is rocked in a clockwise direction and held rocked during the total cycle. Upon the rocking of shaft 55, the arm 255 rocks the bell-crank 51, thereby causing the spring 58 to move the pitman 55 into a lower position in which the lower pin on the crank arm 54 engages the notch in the lower edge of the pitman. 7

At the time the pitman 55 is lowered by the rocking of the front total shaft 55, the pitman is in its extreme forward position and the lower pin on the crank arm 54 is behind the notch in the lower edge of th pitman. When the shaft 45 is rocked in a counter-clockwise direction before the bail 33 begins its advance, the crank arm 54 is rocked in a. clockwise direction but the pitman 55 remains in its extreme forward position, for the lower pin on the crank arm. 54 does not engage the notch in the lower edge of the pitman until the end of the clockwise movement of the front accumulator 44, unless the printing of the total is otherwise suppressed. Before the type sector 29 and the rack sectors 25 begin their return movement under control of the bail 55, the shaft 45 is rocked in a clockwise direction, thereby shifting the pitman 55 rearwardly and disengaging the front accumulator 44 from the rack sectors 25. The rack sectors 25 and the type sectors 29 are then restored to their normally'retracted position by the ball 53, while the front accumulator 44 remains out of engagement with the rack sectors. At the end of the total cycle,

the shaft 55 is restored to its normal unrocked position whereupon the link 255 raises the pitman 55 to its normal position. During the first half of the following accumulating cycle, the pitman 55 remains in its extreme rearward position, thereby retaining the front accumulator 44 dis engaged from the rack sectors 25 during that half 54 shifts the pitman 55 to its extreme forward po- 'sition thereby engaging the front accumulator 44 with the rack sectors 25 in the same manner as in other accumulating cycles.

During the taking of a grand total from the rear accumulator 59 of unit II, the front accumulator 44 of this unit must be conditioned to non-add to prevent the grand total taken from the rear accumulator from being transferred to the front accumulator. To condition the front accumulator 44 of unit 11 to non-add when the front grand total shaft I15 is rocked to initiate a grand total taking operation, an arm 251 is fixed to the shaft I15 in alignment with the bell-crank 51 of unit II. Upon the rocking of the grand total shaft I15, the arm 231 rocks the bell-crank 51 in a clockwise direction, thereby causing the link 234 to move the pitman 55 into an intermediate position in which neither the upper nor the lower notch in the pitman is engaged by a pin on the crank arm 54. The arm 231 corresponds to the arm I21 shown most clearly in Fig. 19 of the patent to W. W. Lasker 2,151,406. As explained in this patent the arm I21 lowers the pitman, which controls the front or group total accumulator, at the beginning of the grand total cycle to retain the front accumulator disengaged from the associated (rack sectors during the taking of a grand total from the rear or grand to-. tal accumulator, and thereby prevents the trans- Referring to Figs. 6 and 8 of this patent, a"-

shaft l4 corresponds .to the main head shaft 2 of the present application. Fixed to the shaft I4 is a disc 450. having on its inner face a cam 45 which cooperates with two pivoted bell-cranks 4| and Ma. The lower bell-crank 4| conditions the rear or grand total accumulator 54' for adding and the upper bell-crank 4Ia conditions it for total-taking. The control of the rear accumulator 34' is effected through an arm42 carrying at its free end a stud 422 adapted to engage a shoulder the vertical arm of either bellcrank 4| or Ia and having its other end connected to anarm II9 which is fixed to shaft 45. A iixedto shaft 45 is an arm 44 resiliently connected to a cradle 45 which supports a rod carrying the rear accumulator 54. A strong spring I25 connected to an arm |15 which is fixed to shaft 4: tends to rock shaft 45in a counterclock wise direction and thereby retain the rear accumulator in engagement with the rear actuating racks. Another spring tends to move the stud 422 on arm 42 into engagement with the shoulder on the upper bell-crank 4Ia but an arm 41 fixed to the rear grand total shaft I54 bears on an extension 421 of. stud 422 and holds this stud in engagement with the lower bell-crank 4|, thereby conditioning the rear accumulator 54' to add as long as the rear grand total shaft I54 remains unrocked. The shaft I54 in Fig. 8 of Patent No. 2,151,406 corresponds to th rear grand total shaft 54 shown in Fig. 3 of the present application. When the arm 42 is controlled by the lower bell-crank 4|, the rear accumulator 54 is disengaged from the associated rear racks during the first half of each cycle and engaged with these racks during the last half of each cycle, thereby being conditioned for adding.

The rear or grand total accumulator 54' is conditioned for total taking by shifting the stud 422 in the arm 42 into engagement with the upper bell-crank 4Ia. As shown in Figs. 8 and 19 of Patent No. 2,151,406, this is effected by rocking the front grand total shaft I. Through a link I23 the rocking of the front grand total shaft I I causes the rear grand total shaft I64 to rock. Upon the rocking of the rear grand total sh'aft I64, the previously mentioned arm 41 is rocked in a counter-clockwise direction, thereby permitting the spring-biased arm 42 to be raised to bring its stud 422 into engagement with the shoulder on the upper bell-crank 4Ia. When the arm 42 is in this position and is controlled by the upper bell-crank 4Ia, the cam 40 actuates the hell-- crank He in the second half of the cycle, thereby permitting the rear accumulator 24' to remain in engagement with its actuating racks during the first half of the cycle, and to be disengaged from these racks during the second half of the of Patent No. 2,151,406, and, as previously stated,

the rear grand total shaft 64 of the present application corresponds to the rear grand total shaft I64 of the patent. In the machine disclosed in the present application, the front'and rear grand total shafts I16 and 64, respectively, are rocked individually by separate means. Accordingly, no link I23, as shown in Fig. 19 of the Patent No. 2,151,406, is provided in the machine dis.- closed in the present application.

When a total is taken from the front or group total accumulator 44 of the unit 11 in the present application, the rear or grand total accumulator 59 of the same unit must be conditioned to nonadd in order to prevent transfer of the total to the rear accumulator. The mechanism provided for this puropse may be understood from an examination of Figs. 8 and 19 of Patent No. 2,151,406. Fixed to the group total shaft 2 is an arm III connected by a link II8 to a lever I" which in turn is connected to a link 49. Resiliently connected to the link 49 is a bell-crank 48 which is adapted to cooperate with a shoulder on the arm H9 which is fixed to the shaft 3. At the time a total is taken from the front or group total accumulator, the rear or grand total accumulator is in add condition with the stud 422 of arm 42 in engagement with a shoulder on the lower bell-crank 4I. Accordingly, at the beginning of .the first half of the cycle during which a total is taken from the front accumulator, the cam 40 rocks the bell-crank 4| in a counterclockwise direction, rocking shaft 43 in aaclockwise direction and disengaging the rear accumulator from its actuating racks. When the shaft 42 is rocked clockwise, the bell-crank 48, which has been moved into effective position by the rocking of the group total shaft I, engages the shoulder on the arm 9, thereby preventing the spring I from rocking the shaft 42 in a counter-clockwise direction at the beginning of the second half of the total cycle to engage the rear accumulator 34' with its actuating racks. Accordingly, the bell-crank 48 prevents the rear accumulator from en g g its racks during the second half of the total cycle, and thus condiaccumulator to non-add. when tions th rear the front group total shaft 8 is restored to its unrocked position, the bell-crank 48 releases the arm IIS, thereby permitting the shaft 43' to rock in a counter clockwise direction under the influence of spring I20 to bring the rear accumulator 34' into engagement with its actuating racks, a position assumed by the accumulator at the end of a normal adding cycle.

From the foregoing description, it will now be clear how the rear or grand total accumulator '59 (Fig. 3) of unit II in the machine of the present application is controlled. During normal tabulating cycles of the machine, this rear accumulator is maintained in add condition so that it receives the same entries as the front or group total accumulator 44 of the same unit. When a group total operation is initiated, and the front group total shaft 56 is rocked, the rear or grand total accumulator 59 is conditioned to non-add, thereby preventing the transfer to this accumulator of the group total taken from the front accumulator. But when a grand total operation is initiated, and the rear grand total shaft 64 is rocked, the rear or grand totalaccumulator I! is conditioned for total-taking.

The zero stops The control of the zero stops :2 (Fi '3) is to be considered from three points of view, namely, their control during accumulating cycles, during group total-taking cycles and during grand totaltaking cycles. The method of controlling the zero stops 22 during the three different types of cycles just mentioned is well known in the art and is fully disclosed in the previously mentioned patent to W. W. Lasker, No. 2,151,406.

Referring to Fig. 28 of this patent, there are shown a plurality of zero stops 2| associated with the rack sectors of a single computing unit.

The zero stops 3!! shown in this figure correspond to the zero stops 22 shown in Fig. 3 of the present application, the'bell-cranks 3| shown in this figure correspond to the bell-cranks 23 shown in Fig. 3 of the present application, the bail arms 32 shown in this figure correspond to the bail arms 26 shown in,Fig. 3of the present application, the shaft I24 sliown in this figure corresponds to the shaft 21 shown in Fig. 3 of the present application, the shaft I4 in this figure corresponds to the shaft 2 shown in Fig. 3 of the present application, and the shaft I64 shown in this figure corresponds as previously stated to the rear grand total shaft 64 shown in Fig. 3 of the present application.

The zero stops 30 (Fig. 28 of the Patent 2,151,406) are held normally in raised podtion by springs ll (Fig. 2 of this patent). As previously explained in connection with Fig. 3 of the present application, a particular zero stop 22 is lowered by a bar 24 which is cammed to the right inFlg. 3whenastop pin II israised. Toassure that the bar 24 will be capable of lowering the corresponding zero stop 22, the zero stops are automatically lowered during each tabulating cycle before the rack sectors 26 begin their forward movement, and if a stop pin II associated with any zero stop 22 is then raised, the cam bar 24 retains the zero stop in depressed position. But those zero stops 22 associated with the columns of stop pins It in which no pin is raised are again elevated before the rack sectors 22 besin their forward movement.

The mechanism for lowering the zero stops before the stop pins I8 have been raised is shown in Fig. 28 of Patent No. 2,151,406. Fixed to the shaft I 4 is a cam I66 with which there cooperates a follower carried by an arm I63 loose on the rear grand total shaft I64. The arm I63 is provided with a gear sector which meshes a similar gear sector on an arm I51 fixed to the rear group total shaft I24. Also fixed to shaft I24 is an arm I68 cooperating with a stud I14 carried by one of the bail arms 33. The arrangement is such that the cam I66 rocks the bail 33a counter-clockwise to lower the zero stops 30 and subsequently, when .the follower on arm I63 leaves the high dwell on cam I66, the bail arm 33a is rocked in a clockwise direction, permitting the zero stops 30 which are not held down by cam bars 24 (Fig. 3 of the present application) to be elevated before the rack sectors begin their forward movement.

During th taking of a group total from the front or group total accumulator, the zero stops must be lowered. For this purpose, a link I22 (Fig. 7 of the present application) similar to the link I23, shown in Fig. 19 of Patent No. 2,151,406, is connected between an arm fixed to the front group total shaft 56 (Fig. 3 of the present application) and an arm I23 fixed to the rear group total shaft 21 (Fig. 3 of the present application). Accordingly, when the front group total shaft 56 is rocked, the shaft I24 rocks the bail 33a (Fig. 28 of Patent No. 2,151,406) or the bail 25 (Fig, 3 of the present application) in a counter-clockwise direction, thereby lowering the zero stops during the group total operation.

The zero stops must likewise be lowered during th taking of a grand total from the rear or grand total accumulator 59 (Fig. 3 of the present application) in unit II. In the present application, it will be remembered, the rear grand total shaft 64 (Fig. 3) is rocked independently of the front grand total shaft I16 (Fig. 3). Fixed to the rear grand total shaft 64 is an arm similar to the arm I69 shown in Fig. 28 of Patent No. 2,151,406. When the rear grand total shaft 64 is rocked, this arm bears against the bail 25 (Fig. 3 of the present application), which is similar to bail 33a (Fig. 28 of Patent No. 2,151,406), thereby lowering the zero stops 22 in unit II.

The nonprint controls Thenon-print controls must be set to condition unit I to non-list the designative data, that is, to print the designation or social security number from the first card of an employees group of cards, but to suppress printing from the remaining cards of the group, and to suppress printing during group total-taking and grand total-taking operations. They must also be set to condition units II and III to non-list the quantitative data, that is, to suppress printing of the items entered from the individual cards, and to print group totals and grand totals.

The method of non-print control utilized in the machine of the present invention is well known in the art and has been in use for some time on commercial Powers machines. The nonprint control of each computing unit is actuated by a pair of push buttons I11 and I'IIA (Fig. 3). In general, to set the non-print controls of computing unit II to non-list quantitative data, the push button Hill is pulled out and the push button I" is pushed in. The similar push buttons IIIA and I1! associated with computing unit III are operated in a similar manner to condition unit III to non-list quantitative tive data, both push buttons "IA and I11 associated with this unit are pulled out.

The operation of the push buttons IIIA and I'll, associated with unit I, in the manner mentioned, will move a non-print bail 238 in that unit to open" position during the first cycle following a group total or grand total cycle and to closed position during other cycles of the machine, When the non-print bail 238,is in open position and the printing hammers II are, released by the hammer latches 238, .the non-print bail 238 is so positioned that it cannot engage the shoulders 240 of the printing hammers, and accordingly cannot prevent printing by the hammers. But when the non-print bail 238 is in closed position and the printing hammers 4| are released by the hammer latches 239, the nonprint bail is so positioned that it engages the shoulders 240 of the printing hammers 4|, thereby preventing printing by the printing hammers.

As the non-print bail 238 of computing unit I is moved to open position during the first cycle following a group total or a grand total cycle, and to closed position during other cycles, it will be evident that the designation or the social securlty number is printed from the first card of an employees group of cards during that cycle, while printing of the social security number is suppressed during other tabulating cycles and during group total and grand total cycles.

The operation of the push buttons "IA and I'I'I associated with unit II, in the manner mendata. But to condition unit I to non-list designationed, will move the non-print bail 238 in that unit to closed" position during tabulating cycles and to open position during group total and grand total cycles. It will thereby be evident that in computing unit II, printing of the daily wages of an employee, which are read from the individual cardsof that employee, will be suppressed, but printing of the weekly total of each employees wages, taken from the front or group total accumulator ll of the unit and printing of the total of all the employees wages, taken from the rear or grand total accumulator 59 of the unit, will be permitted.

It will likewise be evident that in computing unit III, printing will be suppressed during tabulating cycles, but printing of the weekly social security deduction from each employees wages will be permitted. The non-print bail 238 of unit III will be moved to open position during grand total cycles of the machine, but printing will be suppressed during such cycles by the zero stops 22 of this unit which are not lowered during grand total cycles.

The foregoing general description of the nonprint controls affords a sufficient explanation of their functions in the present machine and of the manner of setting them to perform these functions. It is believed that this general description of these controls is sufiicient in this application, as such controls form no part of the present invention. For a detailed description of the mechanism by which the non-print controls are set to perform the functions described above, reference may be made to the patent to William W. Lasker, No. 2,255,670, issued September 9, 1941.

The digit stops I8, the actuating sectors and racks, the accumulators, and the mechanism for controlling the engagement and disengagement of the accumulator and the actuating racks is considered, in the present case, as constituting the accumulating mechanism of the machine.

Keeping in mind the general statements of the construction and operation of a standard Powers will turn now to a more detailed study of the arrangement 'of wires in the translator, the

means for instituting the various grades of total takingoperations and'the relation ofthe mechanism of my invention to the machine as a whole. Referring to Fig. 4 there is shown therein the translator It with the wires 'l'l thereof extending into the several units. The wires II are indicated as extending from two separate fields of the card with the wires associated-with field I extending directly into unit '1. The translator wires actuated from field -II of the cards end in a joining cup 68' (see Patent 2,107,184 to W. W.

Lasker, dated February 1, 1938) from each of which extends two separate wires ll one going into unit II and the other into unit 111. Field 2 therefore is Y wired into two separate units of the machine and data present in this field will be entered simultaneously into both units. For thesake of clearness of illustration only one wire I1 is shown extending from each of the two fields but it should be understood that more are used in the machine itself.

TOTAL OoN'raoL Msorrsnrsu mally inactive cam and ratchet unit controlled by a pair of cams 66 and 61 (Fig. mounted on the main shaft l of the machine. This total control unit is positioned at the upper left-hand side of the base section and is'the same as the total control unit described in the patent to William W. Lasker, No. 2,237,908, issued April 8, 1941. An original form of this total control mechanism is disclosed in the previously mentioned Patent 2,044,119. The mechanism of the above patent is, however, adapted to institute a single total taking operation only, whereas in its modified form, as employed in the above and present applications it is possible to institute either a single total taking operation or two sue cessive operations, according to whether the change of designation occurs in a minor or major control field. In a standard type tabulator the first total operation causes a group total to be taken from all of the front or group total a-ccumulators, while the second operation serves to cause a grand total to be taken from the rear or grand total accumulators. The present machine contains a simple adjustment means which enrear or grand total accumulator of unit II either through the use of a special control card or by resetting the adjustment means to normal.

. For a detailed description of the modified total control unit, including the means for instituting successive total operations from a single changein designation, reference is hereby made to the previously mentioned Patent No. 2,237,908. Figs.

5 and 6 of the present application illustrate substantially the same subject matter in the same :manner as comparable views Figs. 6 and '7 respectively of the above patent. As shown in Figs. 2

and 6 hereina plurality of settable slides 50 are positioned directly in-frontof and slightly above the pin box which supports the intermediate pins l2. The slides 68 are equal in number to the columns of the card and each is providedwith a pivoted dependent interponent 69, the lower end of which normally lies just above and in front .of the nose of an associated slide H. A pair of bail rods II and 12 supported respectively between a pair of arms I3 and" (Fig. 6), secured toshaft's I5 and I6, are positioned in front of all of the slides ll but lie out of the path of movement of the slides. The slides 68 are hand settable and each has three vertical positions. First with the lower end of its interponent 69 above the slides II and the bail rods H and I2, second with the end of the interponent lying between the nose of its associated slide it and the bail rod II, and third with the interponent betweenthe slide I4 and the bail rod 12. It is evident that in the first of the positions noted ables it to operate either in the above manner or,

as will be presently described, it may function in such a manner as to prevent the initial total operation from ever reaching the computing section of the machine and instead cause such operation to effect the entry of a five into the tens denominational order of the front or group total accumulator of unit III. The same adjustment means renders the following or second total operation ineffective to take a grand total from the rear or grand total accumulator of unit II and instead causes it to take a roup total from the front or group total accumulators of units I to III, inclusive. A grand total maybe taken from the nose of a slide it and the upper bail rod 1 I.

above, the slide H in the same column as the raised interponent may reciprocate freely in re-' sponse to movements of the pins i2 and will be ineffective to rock the interponent 69 oreither of the bail rods II or 12. In the second and slightly lower position of a slide 68 the lower end v I of its interponent 69 lies directly between the The elevation or descent of a pin l2 in this column, therefore, will cam the slide I4 leftward (Fig. 2) or rightward (Fig. 6) and through interponent 69 will cause bail rod H to rock in a clockwise direction to rock its associated shaft 15 through a short are in the same direction. In the third position of slide 68 the lower end of the interponent 69 lies directly opposite the bail rod I2 so that operation of the corresponding slide ll will rock bail rod 12 and bail II also, through arms H, to rock both shafts 15 and 16 in a clockwise direction as shown in Fig. 2. The slides 68, therefore, may be set to control two operations. Either the shaft 15 may be rocked alone or shafts I5 and 16 may be rocked together. As is fully described in the above patent and briefly described hereafter the rocking of shaft 15 alone causes the initiation of a single total taking operation, whereas the rocking of bothshafts I5 and 16 together causes two successive total operations. When the machine is used for the purpose outlined in the early part of the description all of the slides 68 associated with field I of the cards (social security number) are depressed to the third position described above so that any change in designating number will immediately be reflected in a movement of one or more slides H to rock both shafts l5 and I6 to trip of! two successive total operations in the following manner.

Referring now to Fig. 5,it will be seen that an arm 11 is secured to the shaft 15 and that a similar arm 18 is secured to the shaft 16. The arms 11 and I! are positioned directly in front of the the outer end of the arm 82 is a feed pawl 88 which is adapted to cooperate with a ratchet I88 (one of which is also provided for the pawl whe l 85 securedto a sleeve which is keyed to a shaft 86. Pivoted to the arm 83 is a feed pawl 81, similar to the pawl 88, which is adapted to cooperate with a second ratchet wheel 88 secured to another sleeve which is loosely mounted on the shaft 86. Ratchet wheel 88 is on part of an assembly which further comprises a detent cam 88 and a shifting cam 8| All three of the above members are secured to the above mentioned sleeve which is loosely mounted on the shaft 86. Ratchet wheel 85 is one member of a second assembly, comprising a third ratchet wheel 82, a cam 83 a detent cam 88 and three additional cams, shown in Figs. 5 and 6, numbered 85, 86, and 81, this second assembly being secured to the other of the above mentioned sleeves which is fixed to the shaft 86. The function of pawl arm 83 is to advance the ratchet wheel 88 and thereby the assembly of which it is a part in a series of step-like motions under the control of cam 61, through the medium of push rod 88. The push rod 88 is connected to the push rod 88, and like the push rod 88, it is controlled by the cam 61.. The pawl arm 88 is, however, normally latched upward out of the path of movement of the rod 88 by the latch 8|; The rocking of shaft 16 will, however, release the arm 83, through arm 18, and on the next upward movement of the rod 88 the assembly 88, 88, and 8| will be fed one tooth space in a clockwise direction, as viewed from the left-hand side of the machine. The pawl arm 82 is also adapted to be controlled by cam 61, through push rod 88, and after shaft has been rocked will alvance the ratchet wheel 85 and thereby the shaft 86 one step simultaneously with the advancement of ratchet 88. The third ratchet wheel 82 is adapted to be controlled by the previously mentioned cam 66 through a push rod MI and an associated pawl arm I82. There is no latching means connected with the pawl arm I82 so that it rises and falls with the push rod |8| with each cycle of the cam 66. Because of the arrangement of teeth on the ratchet wheel 82, however, the pawl is prevented from rotating the shaft 86 while th control unit is in rest position. As soon as the shaft 15 i rocked though, the shaft 86 will receive one step of rotation, through the ratchet wheel 85, thus bringing the teeth on ratchet 82 into cooperative relation with the feed pawl on the arm I82, thereby permitting the shaft 86 to receive two more steps of movement under the actuation of cam 66. Through means illustrated but not completely described herein the pawl arm 82 i normally engaged by an auxiliary latch I83 after the first actuation of ratchet wheel 85. Then upon the second step of rotation of the shaft 86, pawl arm 82 is reengaged by its regular latch 18, so that, after the third step of rotation of shaft 86 and the assembly secured thereto, both pawl arms 82 and I82 are ineffective and the control unit is normalized. The above condition of operation wherein the control unit is normalized after only three steps of operation occurs only when the shaft 15 has been rocked alone. When shafts 15 and 16 have been rocked together, however, the cam 88, of the assembly 88, 88, and 8|, will, upon its first step of movement, prevent the auxiliary latches arm 85) from engaging their arms 82 and 88 and will also hold ineffective the regular latches 18 and 8|. The disabling mechanism operated by the cam 88 remains effective until the fourth cycle of operation of the cam 61 by which time the cam 88 has advanced four steps and the shaft 86 has advanced fivesteps, at which time the latches 18 and 8| are permited to reengage their pawl arms 82 and 88 to again normalize the control unit. The auxiliary latches I88 are disengaged from the arms 82 and 88 after the shaft 88 has been advanced six steps, which occurs near the end of the fourth cycle of operation of the total control unit. After the third step of movement of the shaft 86, therefore, the mechanism is prevented from normalizing and is instead caused to index immediately into a second series of operations at the end of which second series it is relatched and normalized. The two successive total operations, then, require six steps of movement of the shaft 86, but because of the arrangement of the cams 66 and '61 these six steps of movement are performed in four cycles of the shaft or four machine cycles. The functions performed during these several steps of operation are as follows:

Upon the first step of movement of shaft 86. the following operations 'occur. Associated with cam 85 (Fig. 5) is a lever 28| carrying at one end a follower which cooperates with cam 85 and connected at its other end to a link 282 (Fig. 6)

which is connected to an arm 288 fast on a rock shaft 288. Fixed to the other end of shaft 288 is an arm 285 which has at its free end a shoulder normally retained out of engagement with a notch in the link 285 by a spring. When the shaft 86 takes its first step, the roller on lever 2 is raised by the high dwell on cam 85, and through the linkage just described, the shoulder on arm 285 is brought into engagement with the notch in link 285, thereby holding the picker blade 8 in retracted position, and preventing card feeding.

Associated with cam 81 (Fig. 6) is an arm 286 which is fixed to shaft 2 I8 and has at its free end a, follower cooperating with cam 81. Upon the first step of shaft 86, the follower on am 286 is moved onto the high dwell of cam 81, thereby rocking shaft 2 I8 clockwise, and through arm 2 I5, link 2|6, and lever 2I'I, lowering the card stop 8, thereby retaining the card in the sensing chamber.

Also associated with cam 81 is an arm 281 which is fixed to shaft 228 and carries at its free end a follower cooperating with the cam 81. Upon the first step of the shaft 86, the follower on arm 281 moves onto the high dwell on cam 81, thereby rocking shaft 228 counter-clockwise and through ball I 5 moving the locking slides I8 towards the front of the machine to unlock any pins l2 which may previously have been locked in elevated position.

During this time the machine goes through an idle cycle, thereby permitting the trip transfer pawls to be reset to condition the machine for a total taking operation. Just before the end of the idle cycle, the shaft 86 is again advanced (by cam 66). Th: cycle following the idle cycle is normally the total cycle of the machine and the only operation In the control unit during the total cycle is to place a high point of the cam 86 beneath a roller I88 on an arm I85, thereby pulling downward an operating ilnk I86. When the machine of the-present invention is used for standard tabulating work, the operation of the link I88 during this cycle causes the rocking of total shafts 21 and 88 in the head of the machine (Fig. 3) to initiate a group total taking operation. When used for total carry operations, however, this flrs t operation of the link I88 will not rock the shafts 21 and 88, but will instead cause the previously mentioned entry of five into the second lowest or -tens denominational order of the front or group total accumulator 88 (Fig. 8)

of unit 111 in a manner soon to be described.

\ onto the low dwell of the cam thereby disengagins the shoulder on aim 288 from the -notch in arm 288. During the interval between e third and fourth steps of shaft 88. the cam 288 holds the card picker 4 (Fig. 1) in retracted position, thereby, preventing card feeding during the interval in which arm 288 is unlatched. Upon the normalization of cam 88 at the end of the third step of shaft 88, the follower I88 on arm I88 moves-onto the lower dwell of cam 88, thereby raisins the T-link I88. Upon the normalization of cam 81 atthe end of the third step of shaft 88. the followers on the arms 288 and 281 ride onto the low .dwell of cam 81, thereby tending to restore the bail I8 to ineffective position and to raise the card stop ,1. But during the interval between the third and fourth. steps of the shaft ,88, the shaft 228 is rocked in a counter-clockwise direction by the cam 2 I8 and the shaft 2 I8 i held rocked in the same direction by the cam 22 8,-

thereby holding the locking slides I8 in ineflective position and the card stop 1 in lowered position until theyare again placedunder control of the total control mechanism upon the fourth step of the shaft 88.

Inasmuch as the latches 18, 8|, and l88 con- "tinue to be held disabled after this third step of movement the assembly 88, 88, and II is advanced a third step under the control of cam 81 at approximately of mainlshaft travel-after -the previous operation of shaft 88 by cam 88.

Simultaneously with the advancement of the above assembly the shaft '88 is also advanced one step. thereby rendering cams 88 and 81 and disc 88 a ain effective. Upon this, fourth step of the shaf 88, the card feed is again disabled under the control of cam88, and the locking slides I8v are disabled and the card stop is held in lowered position under control of cam 81. Upon the next or fifth actuation of shaft 88, cam 88 will again pull down the operating link I88. Upon the third step of the assembly 88, 88, and 8|,

however, which occurs simultaneously with the fourth step of the shaft 88, the cam 8| effects the depression of a link I81, through leverl88,

thereby shifting the operating linki88 (see Figs. 8

5 and 7) a short distance laterally in a manner soon to be described. Thus, when the link I88 is pulled on the following machine cycle, 'itoccupies a slightly diflerent position than when it was first pulled. When the machine is set for stand-' ard tabulating work this second operation of the link I88 serves to rock the previously mentioned front grand total shaft 118 and rear grand total shaft 88, thereby initiating a grand total taking the shaft 88 and shortly after the beginning of the fourth machine cycle, the follower on the arm I88 tends to move onto'the low dwell of the T-link shift cam 8I, but, as will be explained in more detail later, since the T-link I88 is held pulled at this time by the cam 88, the T-link cannot be returned into its normal, position. After the fourth step of the cams 88, 88, and 8I,

the cam 88 permits the latches 8|, 18 and I88 to reengage the arms 88 and 82, thereby preventing further actuation of these arms by the cams 81. The sixth and last step of the shaft 88 normalizes the cams 88, '88, 88, and 81 and conditions the machine for a new set of listing operations. The

normalizing of cam 88 disengages the auxiliary latches I88 from-the latches I82 and I88 which ar now retained by the latches 18 and M.

reenabling the card feeding mechanism. The normalizing of cam 88 permits the T-link I88 to be raised into its normal position. When the T-link I88 is raised, it is returned into normal position or shifted by the spring II2 (Fig. 7). The normalizing of cam 81 raises the card stop 1 and returns the bail I8 into ineffective position, thereby rendering locking slides I8 again effective- At this time, the card which initiated the two total taking operations has been sensed, and after the intermediate pins I2, which have been raised by the sensing of the card, are locked up by the locking slides I8, the card is fed out of the sensing chamber.

OPERATION or Tom. LINK Ami HALF CENT CARRY MacnAnIsM i As shown in Figs. 2 and 7 the operating link I88 extends upwardly and forwardly in the machine and is formed with a rearwardly extending head or shoulder I88 in the lower left-hand edge of whichiscutanotch III (see alsoF'ig.8). The

I through a collar (not shown) surrounding the stud, is another arm H1. As-shown in Fig. 2 the arm II1 extends forwardly of it pivot H8 and is connected at its front end to an upwardly extending link III which is in turn connected through an arm II8 to the previously mentioned front group total shaft 88. Anything which rocks the arm II8 downward, or counterclockwise as viewed in Fig. 7, therefore, will rock the shaft 88 and. through arm I2I on shaft 88, link I22, and arm I28, will alsorock the rear group total shaft 212 The only means for rocking the arm II8 resides in the total pull link I88. Returning now to the construction and function of the linkI88 it willbe seen (Fig. '1) that in the normal position of the link the notch III thereof lies directly above the stud I I8 and that if the link is pulled in this position the arm II8 will not be rocked due to lost motion between the notch'and stud. The

In total carry work, however, this The normalizing of cam 88 disengages the shoulder on arm 288 from the notch in link 288, thereby' first total operation, therefore, is ineffective to rock the shafts 56 and 21 and the mechanism of the head goes through its usual accumulating operation during this cycle. Formed integrally with the link I86 and positioned on its inner surface is a stud I24 adapted to cooperate with the forward end of arm I25. The arm- I26 is secured at its rear end to' a collar (not shown) loosely mounted on a shaft I21 supported by the auxiliary frame II6. Also secured to the collar on shaft I21 is another arm I28 extending rearwardly and downwardly and connected at it lower end to an upwardly extending link I29 guided near its far end in a bracket I3I secured to the inner side of the'left-hand side frame of the machine. As shown in Figs. 4, 'I, and 9 the free end of the link I29 normally lies just beneath a bent over ear formed at the lower end of alever I32 pivoted at I33 to a bracket I34 secured to the rear of the translator I6 at it right-hand side (see Fig. 4). Member I34 is one of a pair of brackets secured to opposite ends of the translator and between which is rotatably supported a pair of shafts I35 and I36. Secured to theextreme right-hand end of the shaft I35 (as viewed in Fig. 4) is an arm I31 connected by a pin and slot connection to the lever I32. It is evident, therefore, that on the first of the two downward pulling motions of the link I06 before the If-link III6 has been shifted from its'original position as shown in Fig. 7, the stud I24 thereon will depress the arm I25 thereby pushing the link I29 upward, through arm I28, to rock the lever I32 in a counterclockwise direction (Fig. 9) and impart, through arm I31, a slight clockwise rocking motion to the shaft I35. Secured to the shaft I35 to the rear of unit III of the machine is an arm I38 (see Figs. 7 and 9) in the rear edge of which is cut two detent notches or'indentations I39. Normally seated in the lower notch I39 is a stud I4I integral with one arm of a bell-crank lever I42 pivoted on the shaft I35. The other arm of the lever I42 extends downwardly and is connected through a pin and slot to one arm of a second bell-crank lever I43 pinned to the shaft I36. The other arm of th lever I43 extends forwardly through an opening in the rear translator frame and is formed with an open cup-like member I44 at its front end. Positioned inside the member I44 is one end of a Bowden wire I45, supported, through its outer sheathing, by a bracket I46 secured to the translator frame I6. As shown in Fig. 7 the opposite end of the Bowden wire I45 extends into a joining cup I41. Also extending into the joining cup I41 is the regular translator wire I1 representing the numeral in the second lowest denominational order of unit III. Extending out of the cup I41 is a single wire which i adapted to elevate an associated pin I48 thereby raising the number 5 digit stop I8 in the second lowest or tens denominational order stop p ns associated with the front of group total accumulator 44 of unit III. Th pins I48 which elevate the digit stops I8 are standard equipment on all Powers tabulators employing Bowden wires in the translator and are provided merely to insure a definite elevation of the digit stops and to simplify the assembly of the translator. The pins I48 are supported between a pair of plates I 48, a set of which is provided for each unit of the machine. A clockwise rocking motion of the shaft I35, therefore, will be transmitted through member I39, lever I42 and lever I 43 to the special Bowden wire I45 to elevate the number five digit stop of the desired forward to printing position under the control of bail 33. As the front group total shaft 56 and the rear group total shaft 21 are not rocked dur-.

ing the first of the two total taking operations initiated by the total taking control unit, the zero stops 22 in each of the units 1, II, and III are momentarily lowered by the previously mentioned cam carried by the main head shaft 2, but all of the zero stops 22 are again raised except the five stop in the tens denominational order in unit III which is retained in depressed position by the associated cam bar 24 (Fig. 3). Accordingly, the rack sector 28 and the type sector 29 of the tens denominational order in unit III are alone free to advance under control of ball 33, while all of the other rack and type sectors in units I, II, and III are retained in retracted position by their zero stops. Since the rack sectors 28 and type sectors 29 of unit I and H are retained in retracted position by their zero stops 22, printing from these two units is obviously suppressed, for the printing hammer latches 239 can be released only when the type sectors 29 have advanced beyond their zero position. Though the rack sector 28 and the type sector 29 of the tens denominational order in unit III moves forward to its "5 position, and the printing hammer latch 239 corresponding to this type sector is released, the operation of the corresponding printing hammer H is blocked by the non-print bail 238 of unit III. It will be remembered from the preceding description of the operation of the non-print-controls, that the non-print bail 238 of unit III is positioned to permit the operation of the printing hammers 4I only during group total and grand total operations. But since the front group total shaft 56 is not rocked during the first of the two total taking operations initiated by the total takin control mechanism, the non-print bail 238 is retained in' a position to block the printing hammer 4| of unit III during this operation and accordingly printing is suppressed when the rack sector 28 and the type sector 29 of the tens denominational order of unit III advance to its "five" position. 0n the return stroke of the sectors the accumulator wheels 44 will engage the sectors 28 and a 5" will be added into the wheel of second lowest order. It is evident that if an amount equal to or greater than the amount being added in is already present in this wheel, then a tens carry of one digit will be effected into the wheel of next higher order. If an amount less than five is in the wheel, however, no carry will be made. Upon the completion of the above operation the amount contained in the accumulator of unit III is a representation of the true social security deduction and the machine is now in condition to print a total.

It will be recalled that immediately following the raising of link I86 after the first operation there is an intervening idle cycle during which the trip transfer pawls are reset and the link I96 shifted laterally to a new pulling position. Referring to Fig. 7 it will be seen that the previously mentioned link I81 (controlled by cam 9I of the total control unit) is connected at its upper end to an arm I49 secured to a shaft I5I sup- Ported between the side frames -of the machine. Also secured to the shaft I5I is an arm I52 con-

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