US2166067A

US2166067A - Transfer mechanism

Info

Publication number: US2166067A
Application number: US81198A
Authority: US
Inventors: Francis A Hosack
Original assignee: Individual
Current assignee: Individual
Priority date: 1936-05-22
Filing date: 1936-05-22
Publication date: 1939-07-11
Anticipated expiration: 1956-07-11

Description

July 11, 1939- F. A. HosAcK TRANSFER MECHANISM Filed May 22, 1936 5 Sheets-Sheet l INVENTOR Zad f MORNE J July 11, 1939- F. A. HosAcK TRANSFER MECHANISM Filed May 22, 1956 5 Sheets-Sheet 2 LJ u Q Q INVENTOR IAKAM f AT RNi-:Y

/7/77 A el July 1l, 1939.

F. A. HOSACK 4TRANSFER MECHANISM Filed May 22, v1956` 5 Sheets-Sheet 5 INVENTOR AMM ATTORNEY-Sv July ll, 1939.

F. A. HOSACK TRANSFER IIECHANISM Filed May 22, 1936 5 Sheets-Sheet 4 1012 md ff //9 f INVENTOR iwi/ins 157. Hasan/ ATTO RNEYS Patented July 11,193

UNITED STATES PATENT OFFICE TRANSFER MECHANISM v mancia A. nosack, Rye, N. Y.

Application May z2, 193s, serial No. 81,198

1o claims.

My invention relates to calculating machines and particularly to that class in which totalling and listing operations are carried on in conjunction with the calculating functions. A principal object of the invention is to provide transfer mechanism adapted for use in association with devices for controlling the actuator-bars to prevent the printing of zeros to the left volf the registering values in adding, subtracting and totalling operations, such as are disclosed in my prior Patents No. 1,823,859, issued September 15, 1931, and No. 1,938,907, issued December 12, 1933.

A second object of the invention is to provide for the release of the actuator bars for orders to the left of a value-entered on the keyboard, after printing has taken place, to enable movement of these bars for effecting required transfer operations.

Another Objectis to provide individual restoring frames which permit a limited step motion of the actuator bars independently of the operating shaft thereby enabling transfers to be eifected when the actuator bars, on their way back to* normal positions, are in coactingrelation with the register pinions.

A further object is .to provide mechanism for bringing the register pinions into and out of coproper times. Other-objects and advantages of the invention will be apparent upon consideration of the iolacting relationship with the actuator bars at the lowing description and appended claims when read in conjunction with the appended drawings in which:

Fig. 111s a sectional elevation at the left of the column of keys of highest denomination and shows the various parts in non-operated position;

Fig. 2 is a sectional view on the line 22 of" Fig. 1 illustrating the`manner in which the actuator bars cooperate with the key stems, and also shows the side frames of the machine;

Fig. 3 is a sectional view on the line 3 3 of Fig. 1 and shows the bar locks for the actuator bars;

Fig. 4 is a sectional view on the line 4,-4 of Fig. 1 and shows the zero locks for the actuator bars;

Fig. 5 is a fragmentary' sectional elevation atc Figs. 8 to 12 are detail views showing various cooperative relations of a transfer lever associated with one numeral pinion and the actuator bar for the numeral pinion of next higher order;

Fig. 13 is a fragmentary View of the mechanism 5 for restoring the pinion frames;

Fig. 14 is a side view of a portion of the devicev including the bars for unmeshing the accumulator gear frames from the segmental gears, the parts being shown in the initial position of the 10 actuating handle; i Y Y Fig. 15 is a. side view of the construction disclosed in Fig. 14 with the parts in the positions assumed when the actuating handle is in its forward position; Y 15 Fig. 16 is a sectional View, partly broken away, taken on line IS-I of Fig. 1;

Fig. 17 is a perspective view of a detail of the device showing the key stem locks and the mech-r anism for operating the key stem locks; 20

Fig. 18 is a greatly enlarged side view of a portion of the device disclosed in Fig. 1; and

Fig. 19 is a perspective view of a portion of an accumulator gear frame and the slide associated therewith. 25

' This application is a-continuation in part of my copending application Serial No. 701,283, filed December 7, 1933, now abandoned, which is a continuation in part of application Serial No. 337,287, led February 4, 1929, now abandoned, and 80 337,284 was a continuation .in part of Serial No. 49,565 now Patent No. 1,823,859.

In Fig. 1, I have shown' a longitudinal section of a keyboard in which therespective keys I to 9, inclusive, of the various columns making up the 35 keyboard are supported and guided in horizontally spaced plates Il, II and I2. Each key is held in its normal position by a spring 21 acting bef. tween plate II and a seat 28. The seat 28 is a flange projecting. from the key which bears 40 against the upper end of the spring 21'. The lower end of the spring 21 is supported on the bar I I. When the key'is depressed, the spring 2"` is compressed. Actuator bars I3, of which there is one for each column of keys, pass through cut- 45 out portions l2 adjacent the lower ends of the key stems as shown in Fig. 2. The keys in each column are disposed when in assembled relation so that the cutout portions 32 in all the key stems of a column are in alignment for guiding and sup- 5o stops 14.15. ls mi n, as mamatedm Fig. 1.

These stops are adapted when brought into proper assembly with the slotted key stems of a column to be engageable with certain projecting portions of the key stems to limit the movement of the actuator bars.

Each stop on an actuator is adapted to cooperate With a projecting portion or @t (Fig. 2) of a certain key of the column with which the bar is associated so that when the key is depressed and the bar is moved the stop engages the projecting portion of the key to limit the operation of a'printing segment @d by the actuator bar to a number of increments of movement corresponding to the-value of the depressed key. The arrangement of the projecting portions on the various key stems and their relation to the stops on the actuator bar is more fully described in my prior Patent No. l,23,859.

At one side of each column of key stems is a key stem lock 29 hav trunnions 29a journalled in the plates 3d and iii, so that it can swing into and out of engagement with laterally positioned depressions or notches 2% and 29o (Fig. 2), formed in the key stems adjacent their upper ends. The key, stem lock 2i) engages the notches 29h when all the keys are in raised position and is adapted to engage the notches 2te ot the keys to hold them in depressed position.

Near the forward end of each actuator bar Il@ is a. slot 38 for receiving a bar lock for the actuator bar and a slot il@ for receiving a zero lock.

for the actuator bar as shown in lig. 5. Referring to Fig. 3, the bar locks consist of a series of members 4E, one for each actuator bar, pivotally mounted on one side of the plate 3@ at lili When no keys are depressed the bar locks depend perpendicularly, as indicated by the position of Ml, with solid portions of their lower ends in the slots 38 oi the actuator bars and consequently all the actuator bars are locked against movement. Each bar lock is provided at its lower end with a slot 48.l Laterally projecting members such as pins 52, are carried by the bar locks and are engage-v ment so that when a key in any column to the left of the first column is depressed the unlocking movement of the actuator bar lock in that column causes the locks for all columns to the right to move to' unlocking position, while the bar locks to the left remain in locking position. A single vspring 60 associated with the right-hand bar lock 40 biases all the bar locks into locking relation with the slots 38 oi the actuator bars. A bell crank 6| pivoted on plate 30 engages the bar lock 40 at the extreme left to effect simultaneous releaseoflall the bar locks, as will be described hereinafter. r

The zero locks for the actuator bars comprise members 64 (Fig. 4)', pivoted on the other side o( the plate 30 at '68. The zero locks are biased by individual springs 12 so that their lower ends rest in the slots 39 of the respective actuator bars. The slot 39 in each actuator bar is wider, as shown in Fig. 5, than the zero lock by an amount equal to the distance the actuator bar must travel to bring the printing segment iid, to be presently described, into position to print a zero.

greener The zero locks normally prevent the actuator bars i3 moving more-than enough to bring the printing segments to zero position. Adjacent their lower ends the zero locks are provided with projections such as pins Sil, adapted to be acted upon by arms lli, carried by the keystem locks 29 of the respective columns so that when a key is depressed in a column the zero lock for the corresponding actuator bar i3 is moved out of the slot 3S in the bar permitting the bar to be moved to index theprinting segment 8B in accordance with the value of the depressed key. Y

The operation of the zero locks differs from the operation of the bar locks in that the zero locks move independently oi each other and normally remain locked except when they are individually released by operation of the key stem locks- 29A as a result of depression of a key in the corresponding columns. l

The bar locks and zero locks, when released, are held out of -locking relation position by the arms 56, or 16, carried by the key stein locks acting against the

pins

52, or 80. This is because when a key is depressed the key stem lock 29 is moved out of the-notch 29h in the key stem and engages the notch 29o which is of lesser depth so that the key stem lock 29 does not return to its normal position until released from locking relation with the key stem.

A suitably guided bar 'i3 operable Aby a bell crank 'i3d pivoted to plate 30 and having slots lh, into which the pins 8u, etc., carried by the Zero locks extend. is provided for simultaneously releasing all the zero locks, as will be described hereinafter.

Below actuator bars i3 and the main shaft |5| which has an operating handle, not shown, is the restoring frame shaft |63. The restoring frame shaft has adjacent each end thereof an arm iib connected by links tiilc and lid to shaft 05|.

The shaft E03 is operable in one direction by the main shaft i5l and in the opposite direction by springs l5|e connected to pins liiif on arms ilb and to the frame of the machine at l5 lg. Mounted on the shaft |03 are the restoring levers i104, one for each actuator bar, having at their upper ends studs |05 which control the actuator bars i3. These restoring levers are keyed to the shaft by means of the keys |03a. fitting in keyways |86 which are enlarged as shown in Fig. 6, so that the restoring levers |04 and the shaft W3 are capable of limitedrelative movement for a purpose to appear hereafter; Passing around each leverY |04 is a spring lill the ends of which are secured to shaft |03 so that the spring acts as a resilient coupling between the shaft |83 and the restoring lever |04 within the limits of the key- Way |06 and normally urges the levers clockwise as viewed in Fig. 6.

The actuator bars which are horizontally guided in'the plates Il and i2 and vertically guided in the key stems, as above described, have lugs I3d projecting through elongated slots in the plate l2. The lugs are connected to one end of springs |30 for moving the actuator bars rearwardly, the other ends of the springs being connected to the plate at |3b. At their rearward ends the actuator bars I3 have racks 31 engaging toothed portions 85 of the printing segments 84, preferably mounted on a common shaft 84a with proper provision for retaining them in alignment with the actuator bars. 'Ihe printing segments 84 are illustrated as having printing portions 86 on their edges, the printing portions Cil sions, one blank and the other comprising type from to 9. A platen 88 and a ribbon 81 act inv conjunction with the type on the segments 84 to eiect printing.'

The platen 88 has a shaft 89 supported adjacent each end of frames 88a pivoted at 88b and connected by links 88e to arms 88d carried by the main shaft I|` In order that the platen and ribbon may be moved against and away from the type faces at the proper times the links 88e have a pin and slot connection to frames 88a, so that the frames are moved by the main shaft at the end-of the forward stroke of the operating handle. Springs 88j are provided to move the platen 88 away from segments 84. vShoulders 88r formed on slots 88e in links 88e are adapted to engage studs 88h to move the platen frames 88a to effect printing. 'I'he links 88o have cams 88s engaging a bail 88t for raising the links 88e so that the platen 88 may be moved away from type faces 86 by springs V88;f after printing has taken place, the studs 88h moving in the extensions 88u of the slots.

I'he bell crank 6|, Fig.' 3, for releasing the bar locks 40 is connected by a link Bla to one end of a lever Gib, Figs. 1 and 6, pivotally mounted on plate I2. I'he other end of 4lever SIb extends adjacent restoring frame shaft |03 which is provided with a cam or stud |03c. Stud |08c is positioned for engaging and rocking lever SIb to cause release of the bar locks after printing has taken place, to permit the previously locked actuator bars to be moved one increment rearwardly by springs I8c. 'I'his increment of rearward movement is provided to insure that all bars are positioned for effecting such transfer operations as may be necessary as will appear later.

Numeral wheel-pinions 90, each associated with a cam 9| so that a pinion 'and cam move together,'are mountedl on a shaft 84, which is supwith by a spring 82d for normallyholding the numeral pinions`90 out of engagement with the -toothed portions 85. As best shownin Fig. 15,

studs of two of the restoring levers |84, those adjacent the pinion frame 92, extend laterally from their levers I 04 and are adapted to engage and release the latches 82h to permit engage-l l ment of the numeral wheel pinions 88 and the toothed portions 85 of segments 8'4, as will be described later. Y- i A bar |88, slidably mounted on pins |81 projecting through slots therein. is adapted for engagement with the frame 82. A strong spring |89 connected at one end to one of the pins |81 and at the other end to a pin |88a on the bar |88 urges the latter toward the frame 82, but the bar is normally held retracted by' a latch |48 pivoted at |48a. and urged into engagement with a notch |48b. 'I'he latch |48 lies in the path of cam |88.

Pivotally'mounted on a shaft |0|a supported by an extension |00 of each frame 92 are transfer levers 10|, one for each numeral wheel pinion except that of the highest order (Figs. 16 and 18). gages the corresponding cam 9| so that when a numeral pinion passes from 9 to 0 position,-

the raised portion 9|a of the cam causes the lower end |0|c of the lever to be moved out of the path of movement of a stop |02 adjacent the rack 31 on the actuator bar I3 associated with the numeral pinion of the next higher order. The levers 0| are releasably^retained in either position by means of friction elements, such as for example, spring washers |0| (Figs.

16 and 18).

Forward of each numeral lwheel pinion is a pinion lock pivotally mounted on a shaft 96 and having teeth adapted to mesh with the pinion 90 to retain the latter in its operated posi- 4the position shown in Fig. 1. The levers 98 are pivotally supported on the main frame by means of a shaft 98k. As shown in Figs. 16, 18 and 19 the levers 98 support bails |0|d and |0Ie, the bail |0|d acting on upward movement of levers 98 to move the end |0Ib of each adding trans- .fer lever |0| from contact with the cams 9| and the ends |8|c out of engaging relation with the stops |82 on the actuator bars I3. The bail |0 |e is normally positioned in the path of move.- ment of the ends |0|c of the transfer, levers |8| for restoring the latter after they have been tripped to eifect additive transfers. Springs 881' bias the levers 98h and the parts connected thereto tonormal position.

1d order that the adding pinions may be meshed with the toothed portions 85 of the printing segments 84at the proper time for effecting subtraction, the lever 88h isV operatively connected to slides v82 (Figs. 18 and 19), one of which is mounted on each of the vframes 82 andsuitably guided for vertical movement. 'I'he links 88d and 88g operable by shaft 98a are connected to bell cranks 98p, each pivotally mounted on a frame 92. The bell cranks 88p each have a slot 981' receiving anoating connecting stud 82d, also extending into a slot 82e in the corresponding slide 82. The connections 82d, 881?, permit movement of the frames 92 without actuating links 88d and 989, and the connections 52d, 82e permit movement of the slides without moving the links, whereas .the rocking of bell cranks 88p by the subtracting lever 98h through the links acts through slots 881, studs 82d, and slots 82e One end I0|b of each lever |0| ento raise the slides As shown in Figs. 1 and. 18, y

adjacent its lower end each slide carries a stud 82h adapted to engage the arin of a bell crank MAA-..

63a pivoted on the franie of the machine at 63h. The other arm 63e of each bell crank pivotally supports a latch tripping member 92j adapted on rocking of bell crank 63 to engage a pin 92g on the pinion frame latch 92h to move the latter about its pivot out of latching relation with the associated pinion frame 92. A spring 63d is connected to trip 92f and pivot 63h for restoring trip 92! and bell crank S9. Each frame 92 carries a stud 92h for also controlling the corresponding latch 921, as will be described.

In order that no printing can occur in the p totalling operations as to columns to the left of the amount so to be printed, I provide a cipher lock i3d for eachl actuator bar. Cipher lock levers |21 are pivoted on the shaft l @1a. At its upper end each cipher lock lever 126 has a cam surface |2411, normally engaging the raised portion Sla, of the corresponding cam 91 and at its lower end a bearing surface 126. Below each actuator bar i3 is acipher lock 194 pivotally supported on a shaft |29which is slidably mounted in guides on the side frames of the machine, as shown in Fig. 16. 'I'he ends of the shaft |29 are received in vertically disposed grooves in the blocks 129e on the main frame of the device, which allows vertical movement of the shaft |29. Each cipher lock |34 is held against the bearing surface |26 of the corresponding cipher lock-lever |21 by a tension spring iti while the superior` spring |32 tends to force the cam surface at the upper end oflever |2i against the pinion cam 9|. cut away to form shoulders |39 adapted to engage the upper ends of the cipher locks 134 when the latter are raised. Pivotally mounted on a shaft extending across the pinion frames 92 are a plurality of latches |35, one for each cipher lock, adapted to pass through slots in the cipher locks |34 to hold the locks rmly when they are raised and engage the shoulders |33 of the actuator bars. j

Each cipher lock is arranged to operate the next adjacent cipher lock to the right in theV series to insure that, when any one' of the pinions 99 with its cam 9i has moved from zero position, permitting thel cipher lock lever 12d to move off the raised portion 91a of the cam and to carry with it its cipher lock |34, those cipher locks to the right of said cipherlock will be carried rearwardly therewith as is shownrand described in my Patent .No. 1,938,907. In the position assumed by the cipher locks so moved about the shaft |29 their upper ends are displaced countei'clockwise as viewed in Fig. 18 from the path of movement of the shoulders |33 on the bars I3 when all the cipher locks are moved upwardly and the latches B95 cannot engage With the slots of the respective cipher locks |34 during totalling operations. l

The total key 14 and subtotal key 15 are guided in the plates l and ll. A key stem lock 14a, similar to locks 29 for the numerical keys is provided for engaging notches in the

keys

14 and 15 to maintain the latter in depressed position until the lock is released, whereupon the keys.

'I-'he bottom edges of the actuator bars are.

ed, as shown in Figs. land 18. The shaft 15e extends transversely of the machine and adjacent its other end carries an arm 15g (Fig. 5) connected by a link 15h to another arm |291) also mounted on the shaft |29 (Fig. 16). The arrangement is such that depression of the subtotal key, or depression of the total key acting through the lugs 14g and. 15e on thetotal and subtotal keys, causes a toggle movement of the links 15j and 15h forwardly. This causes the shaft |29 to move upwardly in its guides under the influence of the arms |291 and this upward movement of the shaft |29 carrying the cipher locks 134 causes the ends of the cipher locks |34 ders |33 on the actuator bars.

The links 15j and 15h are connected to bell cranks 15k, as shown in Figsl 1, 16 and 18, one of which is pivotally mounted adjacent each frame 92. This connection permits only substantially linear movement of the links 15j and 15h. Forward movement of the links 15j and 15h therefore causes a counterclockwise rotation of the levers 1291i and an upward movement of their upper ends. The upward movement of the upper ends of levers I29b causes the shaft |29 to move upwardly in the guides in blocks |29e. The bell cranks 15k are also connected to members 151 each having at their upper ends a seat 15u resting beneath one .of the levers 98 (Figs. l, 18 and 19). The members 151 are adapted on operation of the subtotal key, either directly or from the total key, toraise the members 751i and turn levers 98. This movement of levers 99 is only enough to cause moveions 99 with the toothed parts of segments 84. However, this movement of transfer levers |0| is not great enough to move the ends i0|b of the levers from the paths of the raised portions 91a of cams 9T and thus the transfer levers remain effective to serve as zero stops for the pinions 99. The links 15f and 15h are also provided with studs 'li for engaging the arms 63a of the bell cranks 63 to cause release of the frame latches 92h.

'I'helug 175e on subtotal key 15 is adapted to engage and operate the bell crank 13a associated with the zero locks 69, etc. (Fig. 1i). Key 15 also has a lug 15a. for operating bell crank 6| which pertains to the bar locks 49, etc. (Fig. 3). Thus, operation of subtotal key 15, directly or from total key 14, effects simultaneous release of the bar locks and zero locks for all the actuator bars.

Other elements which would be embodied in a complete machine to operate in conjunction with the subtracting lever 9817, and total

and'subtotal keys

14, 15 for registering and listing functions are disclosed in my Patent No. 1,938,907 but are omitted herein to simplify the present disclosure.

Referring to Figs. 2, and 17, a bar 29d having a slot 29e for each key stem lock 29 is provided for releasing lthe key stem locks from the key stems, so that the depressed keys may herestored b'y their springs 21, and for moving the arms 56, etc., and 16, etc., associated with the pins on the bar locks and zero locks, respectively, to permit locks which have been released to be restored to locking position by the springs associated therewith. The bar 29d is biased to normal position by a spring 291 so that the notches 29e are normally disposed to permit lmovement of any key stem lock on depression of a key in the corresponding column.

Bar 29d is connected to one end of a lever 29h pivotally mounted in the plate Il. Lever 29h carries at its other end a pivotally mounted dog 29k, extending into the path of a movement of a cam |3a having an inclined 'forward edge on the actuator bar I3 of lowest denomination. The dog 29k carries a pin 2911. adapted to limit the movement of the dog about its pivot on lever 29h, the arrangement being such that on rearward movement of the actuator bar I 3 cam 13a engages and pivots the dog Without operating lever 29h while on forward movement of the actuator barcam |3a engages and because of its inclined edge cams the dog 29k laterally away from bar I3, thereby operating lever 29h and moving the bar 29d to the right (Figs. 2 and 17) for causing release of the key stem locks 29. This arrangement may be duplicated for as many actuator bars as deemed desirable.

In any event the above described mechanism is provided for the actuator bar associated with the column of lowest denomination since this bar moves, at least one step in each direction, whenever a key is depressed in any column. The key stem locks for the total and subtotal keys are operatively associated with the locks 29 for the numeral keys so that they are released in conjunction with release of the latter as disclosed in my Patent No. 1,938,907, The operation is as follows:

When the key in any column is depressed the key stem lock 29l for that column is moved out of engagement with the notch 29h of the key stem. 'I'he arm 55, for example, moves with its key stem lock and acts on pin 52 on the bar lock 40 moving the slot 43 into alignment with the actuator bar i3 to permit its movement. The release of the bar lock in any column also effects the release of the bar locks for all of the columns to the right since the actuated bar lock is in abutment with the adjacent bar locks. This is illustrated in Fig. 3, Wheredepression of a key in the iiith column from the right has caused the key stem lock 29 of that column to move arm 55 releasing bar lock 40 for the actuator bar I3 ofthe fifth column. The 'bar lock 40 has `caused the release of the bar locks for the actuator bars of all columns to the right. It should be noted that the bar locks 40 for the columns to the left of the fifth column remain in locking p0- sition. It should alsobe noted that unless a key is depressed in a particular column the re- Ilated key stem lock 29 is not released, the pin,

52 on the bar lock moving therewith away from the arm 5B, carried by the key stem lock.- 'This is illustrated in the rst, third and fourth columns, while the position of the arm 5,6 indicates that a key has been depressed in the second column also.

The arm 13 also moves with the key stem lock 29 for the fifth column and acts on the pin 80 on the zero lock 84 for that column moving .zero lock 04 out of the notch 39 in the actuator bar I3. As the key is depressed, the key stem portion between notches 29b and 29e acts on key stem locks-` 29, to cause the bar locks and zero locks to be moved slightly beyond released position by arms 55 and 13. Springs 00 and I2 act on the right bar lock and the released zero locks to move

arms

59 and 13, through studs 52- and 80 to move the Vkey stem locks sufllciently to engage. notches 23C to hold the keys in depressed position,

When the operating handle secured to the main shaft |5| 'is moved forwardly, the restoring lever shaft |03 is moved counterclockwise (Fig. l), carrying the restoring levers |04 and permitting the actuator bar springs |30 to move the actuator bars rearwardly. The actuator bars for columns in which keys have been depressed, having their bar and zero locks released, move rearwardly until stops, such as |4, on these actuator bars engages projections 35 of the key stems for limiting the movement of the printingA segments by racks 3l to an amount corresponding to the value of the depressed keys;

' The combination of the bar locks and the zero locks insuresv the printing of zeros to the right of any key which is depressed and inhibits the movement of any actuator bars to the left of that key. This is for the reason lthat any bar lock which is thrown out carries all of its right hand neighbors with it to permit the actuator b ars for these columns to move at least enough to index the printing segments in zero printing position while the zero locks normally release individually and only on depression of keys in the corresponding columns. The actuator bars for columns to the right of a column in which a key has been depressed move rearwardly a single step to move the printing segments dei for these columns tu zero printing position, the movement or' these bars being limited by their zero locks. This is illustrated in Fig. 9, the bar i3 having moved rearwardly one increment lpositioning this bar stop |02 one step away from the end itic of the transfer lever 90E of next lower order, in which position the bar is held by its zero lock 64; Bars I3 for columns in which keys have been depressed have their zero locks released and move rearwardly beyond the position indicated in Fig. 9 a number of increments corresponding to the value ofthe key depressed, as in Fig. l1 ready for a return movement in the direction of the arrow. 'Ihe actuator bars to the left of the amount entered 0n the keys are held by their bar locks in the position shown in Fig. 8 and do not follow the movement of the restoring levers |04.

shown in Figs. l and 15. Subsequent return of links |5|c and |5Id.' and theirpin |5lh allows,

Release of frame 92' by the bar |30 in its aforementioned movement to the right, permits numeral pinions 90 to be moved by spring 92a. from engagementwith pinion locks 95 and into engagement with the toothed portions 05 of printing segments 84. However, pinions 90 do not engage the toothed portions during'the rearward movement of the actuator bars in addition, inasmuch as the pinion frames arestill held by the latches 92h.

l After the ksegments 84 have been indexed in printing position the studs |05 oi restoring levers` itransfer levers.

has been effected by the power stored in spring |01, the cams |38 on shaft |03 engage pawls |40 to disengage them from the notches |40b in the corresponding bars |38 to release them for sudden movement to the left, as seen in Fig. 13, by their tensioned springs |39. 'I'he bars |38 accordingly strike the corresponding frames. 92, rocking the latter to move pinions 90 from engagement with the toothed portions 85 and into engagement with the pinion locks 95. As the pinion framesare moved rearwardly the transfer levers are carried therewith and all actuator bars which have been held from normal position, as in Fig. 10,l are moved forwardly by the springs |01 of the restoring levers to the position shown in Fig. 8, as the stops |02 on the actuator bars follow the movement of the ends |0|c of the The ends |0|c of the transfer levers |0| which have been tripped, Fig. 12, to

effect a transfer, engage the bail |0|e carried by the levers 98 and are restored .to normal position in abutment with the stops |02 on the actuator bars of next higher order.

As the pinions 90 are demeshed the frames 92 and latches 92h move clockwise and studs 92h move with frames 92 to permit the springs 63d to position trip members 921. above the pins 92g on the latches (Fig. 1). Latches 92h, biased by springs 92d, engage frames 92 and lock the pin` pins 29u prevent pivotal movement of dogs 29k by cams |3a on forward movement of the bars |3 the dogs are cammed sideways away from the bars and act to rock the lever 29h .about pivot 291'. As a lever 29h is turned about its pivot it moves the bar 29d so that the shoulders of the notches 29e engage the key stem locks 29 moving the latter'from engagement with the notches 29e of the key stems. 'I'he springs 21 associated with the depressed keys return the latter vto normal position.

As the cam |3a moves beyond and from engagement with the dog 29k the bar 29d is returned to normal position by the spring 29j. On return of the bar 29d the shoulders of the notches 29e move away from the key stem locks 29. The spring 60 associated. with the bar lock of lowest denomination, acts to pivot alLthe released bar locks so that the slots 48 ar moved from registration with the actuator bars and the solid portions of the bar locks are moved into the notches 38 of the actuator bars to lock the latter in normal position. The individual springs 12 associated with the released zero locks move the zero locks so that their ends are positioned in the notches 39 in the actuator bars. The key stem locks again engage the key stem notches 29h as the arms 56, and 1'6, are moved by the pins on `the bar locks and zero locks.

In the event that the bar locks and zero locks are released before all of the actuator bars have moved to normal position, the springs associated with these locks biasthem againstthe actuator bars so that when the actuator bars have moved to position the

notches

38 and 39 in alignment with the bar locks and zero locks the latter will enter the notches to lock the bars in normal position.

When subtraction is performed it is to be understood that the operating sequence is.somewhat different from that in addition, as described above; for example, the numeral pinions 90 are in engaging relation with the toothed portions 85 of the printing segments during the rearward movement of the actuator bars and are in disengaged relation during the forward movement of the actuator bars.

' When a number is to be subtracted the subtracting lever 98h is movedl to and held in operative position. It is to be lunderstood that latching means of any desired form may be provided for retaining the lever 98D in operated position if it is desired to render it unnecessary to manually hold it in operative position. Lever 98h acts through the links 98d and 98g to move the levers 98 about their pivots. The levers 98 act through the bail |0|cZ to move the ends |0lc of the adding transfer levers |0| upwardly from engagement with the stops |02 on the actuator bars so that the ends |0|c by engagement with stops |02 of bars |3a which do not-have their bar locks released, because no'key has been depressed in the corresponding column or one to the right thereof, may not act to prevent meshing of pinions 90 with toothed portions 85 during the rearward movement of released actuatorbars. The ends |0|b of the transfer levers are moved from engagement with the pinion cams @la` and out of the paths of movement of the raised portions 9|b thereof to permit subtractive movements of pinions 90 through zero position if required.

The movement of links 98d and 98g by subtracting lever 98h also rocks bell cranks 98p.. On rocking of bell cranks 98p the slides 62 are moved upwardly on pinion frames 92. The studs B2b vadjacent the ends of the slides engage the arms 53a of bell cranks E3 and turn the latter to move the latch trips 92f which contact the pins 92g on the latches 92h, moving the latches out of engagement with the pinion frames 9 2, so that springs 92e may act to mesh the pinions 90with toothed portions 85 for operation during the rearward movement of released actuator bars from blank to zero printing position.

The depression of numeral keys controls the actuator bars in movement as previously described; that is, actuator bars for ycolumns in which keys have been depressed have their bar locks and Zero locks released so that the bars may move the printing segments in accordance with the value of depressed keys; the bar locks for lcolumns to the .right of a depressed key are released to permit the bars toindex members 84 in zero printing position, the movement of the bars being limited by their zero locks, which have not been released; and both the bar locks and the zero locks for columns to the left of the amount are maintained in locking position so that these actuator bars do not move and no figures, including zeros, will ybe Printed in these columns.

When the operating handle is moved rearwardly, the shaft |03 turns and the cams |36 release their pawls |40 for engagement in the notches 4.017 of bars |38 as the latter are retracted by levers |4| to release thecorresponding frames 92 in the manner described. Since the latches 92h have been released from engagement with the pinion frames by the trips 92j the springs 92a act to move the numeral pinions 90 from engagement with pinion Vlocks 95 'and into engagement with the toothed portions 85 of the printing segments.

The restoring levers Mld are carried with the shaft ldd to permit certain actuator bars to move in accordance with the values of depressed. lreys and others to move as far as the zero printing position.

During the movement of frames but prior to meshing of pinions ilo, the released actuator bars index the zero printing portion oi segments il@ to the printing line. Some slight movement of the frame @2 in a countercloclrwise direction will result on release of the elements above described. Then, as the actuating handle is pulled forward, the main drive shaft itil will be rotated clockwise and the bar i353 will be retracted or moved iorwardly by the pivoted lever lill. The frames Q2 move counterclockwise with the bars Utili and the actuator hars will also move rearwardly. The early movement of the actuator bars is extremely short. IlFhis iirst rearward nuovementA of the released actuator bars BS is equivalent to the displacement or only one numeral position on the printer. 'llhat is, those segmental gears Bil which are permitted to move, move only from blank to Zero position before the accumulator gears engage the segmental gears dll. Due to the fact that the teeth or both the segmental gears @d and the accumulator gears Si@ are large, they will mesh sucently accurately during the rearward movement or frame Q2 to prevent any inaccuracy in. the position or" the accumulator gears relative to the segmental gears. lihus, the 'teeth on the accumulatorgears il@ will be disposed somewhere between the proper teeth on the segm mental gears @d and will be correctly positioned when these gears come into iull mesh. 'Upon continued forward movement or the actuating han= die, the parts associated therewith will move to the positions shown in Fig. lo and the actuator bars itl will move rearwardly a sumcient distance to properly index the segmental gears 8G and the accumulator gears till. As the lower ends or the pinion frame move forwardly the pins @2h thereon move to swing the trips @2f away from' the latch pins 92g. The latches are operated by their springs 92d to again engage, but not lock, the pinion frames 92. During the rearward movenient of the actuator bars, as the restoring levers Mld turn with shaft l t3, the printing 4segments @il are. moved to printing position and the numeral pinions 30 are operated subtractively in accordance with the values of the keys depressed.

After the actuator bars have indexed the printing segments in printing position, platen 38 is moved against the type faces to eilect printing,

as previously described. After printing has taken place, studs 88g carried by links 88c move toward and engage-the slides 62 on the frames 92 to move the frames to carry the pinions 92 from toothed portions and into engagement with pinion locks 95 as is more fully described in my Patent No. 1,938,907. As the pinions are demeshed the pins 92h on frames 92 permit the springs 63d to move the latch trips 92f rearwardly against pins 92g on latches 9217, which, however, are held away from frames 92 by the studs |05 on the rearwardly positioned restoring frames.-

After printing has occurred and the pinions 90 have been disengaged, all the bar locks for actuator bars which have not moved to or beyond zero indexing position are released by stud |03c on shaft |03 acting through lever 6|b as previously described, and these bars move one step rearwardly and are held by their zero locks, as previously described.

When theoperating handle is vreleased and arcaoov moves rearwardly, the main springsV ldlc act to move the restoring levers lil@ forwardly. The

studs Hilti move away from the latches @2b which printing line, but they do not effect operation of the numeral pinicns Q@ `which are held in disengaged relation by the latches 92h.

if, during the rearward movement of the actuator bars, any oi the numeral pinions il@ move from zero through the nine 4position (subtractively), the pinion o higher order is operated to eiect the transfer by suitable mechanism such as disclosed in my Patents Nos. 1,938,907, or l,957,96o. v

The cams H36 turn with the restoring lever shaft lo@ and release the hars ld@ for moving the pinion frames 92 at the end of the rearward stroke of the operating handle for further locking the numeral pinions in engagement with the pinion locks The restoring levers itl/l move the actuator bars to restore all of the actuator bars to their normal position. The

tuated by the operation of cams lila on the acm tuator bar or bars, and the bar loclrs, Zero locks and depressed keys are restored to normal posi-i tion, all as previously described. l

llt the end oi the subtracting operation the subtracting lever 98h is released.

@n release oi thesubtracting lever @Gb it is restored by springs @Si and operates links cod and 98g to permit springs 98a to rock levers Siti downwardly so that the bail lille carried by the levers engages the adding transfer levers lill moving their ends. lille into engagement with the stops Go2 on the actuator bars and theirends lllb into engagement with pinion cams Levers @dal and @do also turn bell cranks @8p to move the slides 62 downwardly moving the studs @2b away from the arm @3a of the bell cranks S3. The bell cranks @Si are restored and the latch members 92) are again positionedbyspring 63d above the pin 92g on the latches 92h?. The springs 92d of latches 92o restore the latches with pins 92g in contact with the ends of trip members 92f.

heystem locks, released har locks, and zero locls are ac- After aseries of adding or subtracting operationshave been performed, some of the numeral pinions 90 have been moved to various positions. The numeral orders in which the pinlons have moved away from the zero position, either by the entry of amounts through operation of keys in corresponding columnsor as a result of transfer operations, have their cams 9| positioned so that the raised portion 9|a of cam 9| is out of engagement with the corresponding cipher lock lever |34. The springs |32 associated with these cipher lock levers turn the levers about the shaft |0|a to maintain the upper end of the levers in contact with the cams 9| and the lower end |26 14h is turned and acts through links 141 and 14n to move the slides 62 upwardly. This upward movement of the slides 62 does not affect the lever 98h because of the pin and

slot connection

62d, 62e. The pins 62h near the end of slides 62 also act on the bell cranks 63 for operating the latch tripping members 92f and releasing latches 92D to permit operation of frames 92 by springs 92a for meshing pinions 90 with toothed segments 84 during the rearward movement of the actuator bars.

It will be remembered that the totalkeyhas lug 14g which overlaps a lug 15e on the subtotal key 15, so that depression of the total key also effects depression of the subtotal key. Consequently, when key 14 is operated the links 15j and 15h are operated through shaft 15e and act on the arms |2973 on shaft |29 to move the cipher locks |34 upwardly so that their upper ends are positioned adjacent the shoulders |33 on the actuator bars. Those cipher locks corresponding to numeral-pinions which have been moved from zero position have been turned about the shaft |29, as described above, so that their upper ends are positioned out of the path of -movement of shoulders |33 on the corresponding actuator bars.

The cipher locks |34 for all denominations to the right of any column in which a numeral has been entered are also swung about the shaft |29 'so that their ends are out of the path of the shoulders |33. v This is effected by cooperative relation of the cipher locks to permit the printing of ciphers to the right of a column having a numeral therein, as disclosed in my Patent No. 1,938,907.

The movement of links 15J and 15h also causes the studs 15i to engage the arms of bell cranks' 63 moving the latch tripping members 92) for releasing the latches from engaging relation with the pinion frames. 92. Pins 62D on slides '62 also perform this function on depression of the totalkey itself. Although there is a seeming duplication of function, it may be stated that pins 62?) are provided especially for effecting release of the latches on subtracting operation as previously described. y

The movement of links 15j and 15g also turns bell cranks .15k raising the members 151. Since the seats 15u at the upper ends of these members rest beneath the levers 98, the latter are turned about their pivots. As a result, the bail I0 Id acts to move the ends |0|c of transfer levers |0| away from the stops |02 on the actuator bars so that frames 92 may move for meshing pinions 90 with members 85 although some bars I3 are locked against movement by the related cipher locks |34. The ends |0|b are moved away from cams 9| but the movement of levers 98 by members 151 is not sufficient to'move the ends |0|b of the transfer levers from the paths of movement of the raised portions 9|b of cams 9|. As a result. the transfer levers |0| remain effective to serve as zero stops for pinions 90.

Depression of subtotal key 15 by total key 14 also acts through studs 15e and 15a on the subtotal key to move the bell cranks 6| and 13a (Figs. Y 3 and 4) so that all of the bar locks and -all of the v zero locks are simultaneously released to permit the actuator bars to move in accordance with the amount entered ln the numeral pinions 90.

When the operating handle connected to the main shaft is moved rearwardly the restoring lever shaft |03 is turned and the' cams |36 carried therewith to permit the bars |38 to be`re^-.

in the corresponding columns.

tracted and latched from engagement with the pinion frames 92. The pinion frames 92 are `thereupon moved by the springs 92a so that the numeral pinions 90 move from engagement withv the pinion locks 95 into engagement with the toothed portions of the printing segments 84'.v

As frame, 92 moves the latches |35 engage those cipher locksv |34 having their ends positioned in the path of shoulders |33 in order to hold the locks firmly in raised position. The latches |35 cannot engage the corresponding cipher locks |34 which have been moved aboutA shaft |29 by levers |24 since either figures or zeros are to be printed As the frames 92 move the pins 92h swing the trips 92j from engagement with pins 92g and latches 92h are operated by springs 92d lto engage the frames.

When the shaft |03 turns the restoring levers |04 move therewith, permitting the actuator bars I3 to be moved rearwardly by their springs |3c. As the levers |04 move and prior to engagement of pinions the released bars |3 index the corresponding printers in zero printing position` This insures printing of zeros to the right of pinions having gures therein.

The actuator bars |3 for columns in which numbers have been entered move rearwardly to an extent determined by the number entered in and the indexing of the printing segments being limited by the engagement of the raised portion y 9|a of cams 9| with the ends |0|b of the transfer levers 10| which act as zero stops for the pinions. The actuator bars I3 for columns to the left of the amount on the numeral pinions are held against any movement as the related cipher locks |34 have their upper ends positioned in the paths of movement of and are held firmly against the shoulders |33 on these actuator bars as a result of' operation of the total key.

After the amount on the numeral pinions 90 has been transferred to the printing segments 84,

- the platen 88 is moved through links 88o against the printing segment to effect printing of the total. After printing has taken place in a totalling operation the studs 88g on the links 88e engage the slides 62 land rock the pinion frames forwardly so that the pinions 90 demesh from the toothed segments 85 and engage the pinion locks 95, as described for subtraction. At this time the studs |05 on the restoring levers |04 prevent full upward movement of the latches 92a into engagement ,with the pinion frames, as in subtraction.

When the operating handle on the main shaft is released and moves forwardly the studs |05 on the restoring levers |04 move away from the latches 92h, which engage the pinion frames 92 to hold the pinions demeshed during the forward movement of the actuator bars by the `restoring levers |04, as in subtraction. Y

As the restoring levers |04 move the actuator bars I3 to normal position the racks 31 move the printing segments 84 so that the blank spaces are again presented at the printing line. Cams |36 release bars |38 to further lock pinions, 90 engaged with their locks 95. In the final movement of the actuator bars, key stem locks, bar locks and zero locks are restored to locking relation withV the actuator bars, all as previously described. The movement' of the bar 29d to release the key stem locks, bar locks and zero locks also effects releasing of the key stem lock 14a for the total key and subtotal key which are restored to normal position by'their springs 14h and 15b.

A and the cipher lock levers also act to restore the latter to their normal position.

When the subtotal key is depressed to take a subtotal, the operation is as described above, except as stated hereafter. The slides 62, being connected to the total key, but not to the subtotal key, are not moved upwardly and the studs 88g on the links 88e cannot act to demesh the numeral pinions 00from the toothed portions 05 of the sectors 84 after printing has taken place. Consequently, during the restoring operation ofv bars I3, the printing sectors and the adding pinions are operated by the racks 3l, the printing segments being restored to blank position and the numeral pinions being operated to reinsert the amount in the pinions. At the end of the return stroke of the operating handle the bars |38 engage the pinions frames 92 and eect demeshing of the pinions from the toothed portions 85` of segments 84, as in addition.'

It should be noted that the transfer mechanism disclosed herein is particularly adapted for use in conjunction with locks controlling the actuator bars to inhibit the printing of ciphers to the left of the highest significant figure by preventing movement of the corresponding actuator bars and yet permitting cipher printing in ycolumns to the right in which keys have not been depressed or values registered.

As disclosed herein the restoring levers E04 actuate the pinion frame latches 92h, after printing has taken place, in order to unlock frames 92 for movement to mesh pinions 90 with the toothed portions of segments 84'to effect registration. ',Ihe automatic release, after printing has taken place, of all previously unreleased bar locks 40 by restoring lever shaft |03 acting through lever 6|b permits the actuator bars for 4columns to the left of the highest signicant gure to be'moved rearwardly so that the stops |02 thereon by engagement with the locking ends |0Ic of transfer levers |0l may not prevent movement of frames 92 to .mesh the pinions 90 in preparation for theregistering operation. 'Ihe rearward movement of `these bars is limited to one step' by their zero locks 64 as in the case of bars for columns to the right of a depressed key. l

The one step movement of the bars for co1- umns having no depressed key also insures that all bars are positioned rearwardly so that they may have the forward movement required to effect necessary transfers. p

The action of vthe locking ends llc of the transfer levers to hold actuator bars for columns in which keys have not been depressed one step from restored position until after the restoring lever shaft |03 has ceased to move the actuator bars forwardly causes the related restoring levers |04 to be held fromA full forward movement while shaft i 03 continues to move and thus stores power in the springs |0'l to effect delayed transfers and to restore nonand total keys act through levers 98 and member 1511., respectively, to raise the parts |0|c Aso that actuator bars held in normal position against movement, by their zero locks in subtraction or by the cipher locks |34 in totalling and subtotalling, do not act. through bar stops |02 to prevent rearward movement of frames 92 to carry pinions 90 to operative relation with printing segments 84. y

It should be understood that many of the parts -illustrated are shown in a form chosen purely for simplicity of illustration and to provide a complete showing of related parts and do not necessarilyrepresent preferred embodiments. For example, the mechanism for moving the platen framel to effectprinting and for moving it away from the type faces after printing is illustrated only for completeness of description and may be replaced by various well known types of printing mechanisms.. The frame latching mechanism for maintaining the pinions demeshed during rearward movement of the actuator bars in adding operations and during forward movement of the bars in subtraction and totalling operations, together with the releasing devices therefor, is another instance in which the details of the arrangement shown should not be considered a preferred nor final form.

As there are many changes and variations which may be made in the form of my invention without departing from the spirit thereof, I desire to include all such variations and changes within the scope of the appended claims.

I claim:

1. In a calculating machine, a calculating pinion; a movable actuator bar operatively associated with said pinion to drive the latter; means for urging the bar rearwardly; a series of depressible keys cooperating with said bar to limit rearward movement of said bar to one increment more than the number of increments corresponding to the value of a depressed key; a bar lock for locking said bar in normal position against movement; means actuated by the depression of any of said keys for releasing said lock to permit said bar to move rearwardly; a shaft; a restoring lever carried by said shaft and movable therewith for engaging said bar tor move the latter forwardly; a stop on said bar; a transfer lock forengaging said stop r'to limit the movement of said bar forwardly to a number of increments corresponding to the value of a depressed key; a calculating pinion of lower denomination; means associated with thelatter calculating pinion for releasing said transfer lock to permit said restoring lever to move said actuator Bar one increment more than the incremental value of a depressed key while said actuator bar is in operative relation to said rst calculating pinion; and means connecting said restoring lever and said shaft for resiliently opposed relative movement thereberelatively to said shaft to move said actuator bar one increment more than the incremental value of said key for effecting a transfer operation.

2. In a calculating machine, a calculating pinion; a movable bar operatively associated with said pinion to drivethe latter; means normally urging said bar rearwardly; a series of depressible keys cooperating with said bar for limiting rearward movement of said bar to one more increment than the number of increments corresponding to the incremental value of a depressed key; a bar lock for locking said bar in normal position against movement; means controlled by the depression of any of said keys forreleasing said lock to permit said bar to move rearwardly; a shaft; a restoring lever carried by said shaft and movable therewith for engaging said bar to move the latter forwardly; a stop on said bar; and a lock for engaging said stop to limit the movement of said bar in said one direction to a number of increments corresponding to the incremental value of a depressed key.

3. In a calculating machine; a calculating pinion; a movable bar operatively associated with said pinion to drive the latter; means normally urging said bar rearwardly; a series of depressible keys cooperating with said bar for limiting the movement of said bar to one more increment than the number of increments corresponding to the incremental value of a depressed key i a bar v lating pinion fromoperative relation to said acpinion thereby; a stop on said bar; a 7lock for tuator bar and for freeing said bar stop from its lock after said bar has moved forwardly a number of increments corresponding to the incremental value of a depressed key.,

4. In a calculating machine, a calculating pinion; a movable actuator bar for operating said calculating pinion, said calculating .pinion being movable into and out of operative relation to said bar; means normally urging said bar rearwardly; a series of depressible keys cooperating .with said bar for limiting the movement of said bar to one more increment than the number of increments corresponding to the value of a depressed key; a bar lock for locking said bar in normal position against movement; means controlled by said keys for releasing said bar lock; a zero lock cooperating with said bar to limit the movement of said bar to one increment when a .key corresponding to said bar has not been depressed; a shaft; a Vrestoring lever carried by said shaft and movable therewith for moving said bar forwardly to normally cause operation of said calculating engaging said stop to prevent forward movement of said bar by said restoring lever beyond a one increment rearward displacement while said calculating pinion is operatively associated with said bar; and a resilient connection between said restoring lever and said shaft for moving the lever relatively to said shaft to restore said bar to initial position when said calculating pinion is out of operative engagement with said bar.

5. In a calculating machine having a calculating pinion and a segmental gear member; a movable actuator bar. for operating said calculating pinion and said segmental gear member, said calculating pinion being movable into and out of operative relation to said segmental gear member; means normally urging said bar rear'- wardly; a series of depressible keys cooperating with said bar for limiting the rearward moven ment thereof to one increment more than the number of increments corresponding to the value of a depressed key; a bar lock for locking said bar in normal position against movement; means actuated by said keys for releasing said bar lock; a zero lock for limiting rearward displacement of said bar to one increment from initial position to advance said segmental gear member to zero position when a key corresponding to said bar has not been depressed; a shaft; a restoring lever carried by said shaft and movable therewith for moving said bar forwardly; a stop on said bar; a transfer lock for engaging said stop to limit forward movement of said bar by said restoring lever beyond said one increment rearward displacement; aV calculating pinion of lower denomination; means associated with said latter pinion for releasing said transfer lock to permit said actuator bar to move one increment while said segmental gear member operatively engages said pinion; and a resilient connection between said restoring lever and said shaft resiliently urging said lever to move relatively to said shaft and to move said bar one increment to effect a transfer from said pinion of lower denomination to said other pinion.

6. In a calculating machine having a calculating pinion and a segmental gear member; a movable actuator bar for operating said calculating pinion and said segmental gear member, said calculating pinion being movable into and out of operative relation to said member; means normally urging said bar rearwardly, a series of depressible keys cooperating with said bar for limiting the movement thereof to one increment more than the number of increments corresponding to the value of a depressed key; a bar lock for locking said bar in initial position against movement; means controlled by said keys for releasing said lock; a zero lock for limiting rearward displacement of said bar to one increment from normal position to advance said segmental gear member to zero position when a key corresponding to said bar has not been depressed; a shaft; a restoring lever carried bysaid shaft andmovable therewith for moving said bar forwardly; a stop on said bar; and a lock for engaging said stop to limit forward movement of said bar by said restoring lever beyond a one increment rearward displacement while said calculating pinion is operatively associated with said segmental gear member so that the single increment of movement given to said bar for moving said segmental gear member to zero position does not cause operation of said calculating pinion.

7. In a calculating machine having a calculating pinion and a segmental gear member; a movable actuator bar for operating said calculating pinion and said segmental gear member, said calculating pinion being movable into and out of operative relation to said segmental gear member; means normally urging said bar rearwardly; a series of depressible keys cooperating with said bar, for limiting the movement thereof; a bar lock for locking said bar in normal position against movement; means controlled by said keys for releasing said lock; a zero lock for limiting rearward displacement of said bar to one increment from normal position to advance said printing member to zero position although a key corresponding to said bar has not been depressed; a shaft; a restoring lever on said shaft engageable with said bar to move the latter forwardly; a stop on said bar; a transfer locl for engaging said stop to prevent movement of said bar by said restoring lever forwardly beyond said one increment rearward displacement; a calculating pinion of lower denomination; means associated with the last named pinion for releasing the transfer lock of said actuator bar when a transfer is to be effected; a resilient connection between said restoring lever and said shaft whereby the restoring lever can move said bar 4an increment to effect the transfer when the transfer lock is released; and means controlled by said shaft for moving the calculating pinions out of operative relation with said segmental gear member and for moving the transfer lock forwardly with the stop on said actuator when it has not been released to effect a transfer.

8. In a calculating machine, a reciprocating actuator bar, a calculating pinion, means engaging and movable by said actuator bar for rotating said pinion, means for bringing said pinion into. operative engagement with said first mentioned4 means, a rotatable shaft extending transversely of said bar, a restoring lever mounted on said shaft and engageable with said actuator bar, means resiliently connecting said restoring lever to said shaft for relative resiliently opposed movement therebetween whereby the shaft may rotate without moving said actuator bar, and-means responsive to the movement of said shaft for disengaging said pinion from said first mentioned means. y l- 9. In a calculating machine; movable actuator bars having toothed portions engaging toothed segments; individual restoring levers engaging the respective actuator bars to move them forwardly to determined positions, said restoring frames having a limited relative movement with respect to each other; means for limiting the forward movement of said actuator bars to positions rearwardly of said determined positions by the respective restoring levers; means for releasing said restraining means; andI resilient means interposed between said levers for effecting limited independent movement of the restoring levers to move the related actuator bars to said determined positions.

10. In a calculating machine, movable actuator bars having toothed portions engaging toothed segments, means normally urging said bars rearwardly, a shaft, individual restoring levers mounted on the said shaft for engaging the respective bars to move the latter forwardly, accumulating means movable into and out of engagement with said toothed segments, and means responsive to movement of said shaft for moving said accumulating means into and out of engagement with said toothed segments.

FRANCIS A. HOSACK.