US1938907A - Calculating machine - Google Patents

Description

Dec. 12, 1933. F. A. HOSA CK CALCULATING MACHINE Original Filed Aug. 11, 1925 5 Sheets-Sheet 1 INVENTOR fiamrz'sfl ffas'azl BY HIS ATTORNEYS Dec. 12, 1933. F. A. HOSACK CALCULATING MACHINE Original Filed Aug. 11, 1925 5 Sheets-Sheet 2 INVENTOR fiazza'sflfifasadf BY H S ATTORNEYS MAW W Dec. 12, 1933. F. A. HOSACK 1 9385907 CALCULATING MACHINE Original Filed Aug., 11, 1925 5 Sheets-Sheet 3 Dec. 12, 1933. F. A. HOSACK 1,938,907

CALCULATING MACHINE Original Filed Aug. 11, 1925 5 Sheets-Sheet 4 iNVENTOR fianals A. [fasar/f' BY 0/; ATTOR N EYS NNQWH zl =FIE. 7 NR NMN nN EN ww Dec. 12, 1933. F. A. HOSACK CALCULATING MACHINE Original Filed Aug. 11, 1925 5 Sheets-Sheet 5 INVENTOR fidnals'fljfusarl BY 1W5 ATTORNEYS mwN Patented Dec. '12, 1933 CALCULATING MACHINE Francis A. Hosack, New'York, N. Y.

Original application August 11, 1925, Serial No.

18 Claims.

My invention relates to calculating machines and particularly to that class in which adding, subtracting and totalling operations are carried out in conjunction with listing operations.

Divided and this application August Serial No. 557,293

One object of my invention is to prevent the printing of ciphers to the left of the highest significant figure when a total or sub-total is taken.

A second object is to prevent the printing of ciphers to the left of the highest significant figure in adding'and subtracting operations.

A third object is to insure the printing of ciphers to the right of a significant figure in adding, subtracting and totalling operations.

A fourth object is to prevent the printing of ciphers when no keys are depressed or when no figures are registered and a total key is depressed and the machine operated. I

In carrying out my invention I provide recip- Y rocating actuator bars for operating printing segments and numeral pinions in accordance with the values of depressed keys. Each actuator bar is provided with a bar lock adapted to prevent its movement except when a key is depressed in the corresponding column or one of higher order. A zero lock is also provided for each actuator bar to limit its movement so that unless a key is depressed in the corresponding column the bar is capable of moving only enough to index a printing segment in zero printing position.

A total and sub-total key are provided which on depression release the bar locks and zero locks to permit actuator bar movements in accordance with the values registered on the numeral pinions. The total and sub-total keys also operate cipher locks to prevent any movement of actuator bars in totalling operations unless the corresponding numeral pinions are out of zero position. The numeral pinions also control the corresponding cipher locks for effecting their release when values are registered by the pinions.

Provision is also made for effecting transfers from one order to another in bath adding and subtracting operations.

. In the drawings:

Figure 1 is a sectional elevation at the left of the column of keys of highest denomination and shows the various parts in non-operated positions;

Figure 2 is a sectional view on the line 22 of 50 Figure 1 and shows the zero locks for the actuator bars;

Figure 3 is a sectional view on the line 33 of Figure 1 and shows the bar locks for the actuator bars; A

Figure 4 is a fragmentary sectional elevation at the right of the column of keys of lowest denomination; I

Figure 5 is a view similar to Figure 1, with some parts omitted for clearness, and illustrates the relation of parts when the total key is de- 60 pressed;

Figure 6 is an enlarged sectional elevation of the total and sub-total keys and shows the mechanism operated thereby for releasing the bar locks and zero locks;

Figure '7 is a fragmentary sectional view on the line 7'7 of. Figure 6;

Figure'8 is a plan view of the adding machine with some parts broken away'and others omitted to illustrate details of construction;

Figure 9 is a sectional view on the line 9-9 of Figure 8 and shows the manner in which the actuator bars are supported and guided by the key stems and also the relation of the bars to the key stem stops;

Figure 10 is an enlarged perspective view showing mechanism for releasing depressed keys; v

Figure 11 is a fragmentary sectional view corresponding to part of Figure 1 but showing the relation of parts when the sub-total key is depressed; Figure 12 shows the relation of parts when the operating lever provided for subtraction is operated;

Figure 13 is an enlarged view of part of Figure 1 and shows certain of the mechanism for controlling the actuator bars;

Figure 14 is;a sectional view on the line 14-14 Figure 13; Figure 15 is a sectional view on the line 15-15 .of. Figure 5 and shows the cipher locks for the actuator bars;

Figure 16 is a sectional view on line 16-16 of Figure 15 showing the positions of the cipher locks when no values are registered on the numeral pinions;

Figure 17 shows the positions of certain cipher locks when values are registered by the numeral pinions;

Figure 18 is a plan view of the printing and registering end of the machine with some parts omitted to more clearly illustrate details of con- V struction;

Figure 19 is an enlarged and exploded perspective view of mechanism for controlling the operative relation of the numeral pinions to the actuator bars in subtracting and totalling operations;

Figure 20 isa fragmentary view of mechanism for controlling latching devices associated with the numeral pinions; and

, ing in the prior application have been employed to designate the corresponding parts herein.

In Figure 1, I have shown a longitudinal section of a keyboard in which the respective keys 1 to 9, inclusive, of the various columns making up the keyboard are supported and guided in horizontally spaced plates 10, 11 and 12. Each key is held in its normal position by a compression spring 27 acting between plate 11 and a seat 28. Actuator bars 13, of which there is one for each column of keys, pass through cutout portions 32 adjacent the lower ends of the key stems as shown in Figure 9. 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 supporting the actuator bars. The portions of the actuator bars which pass through the aligned slots in the key stems are provided adjacent their top and bottom edges with laterally projecting stops 14, 15, 16 and 17, as indicated in Figures 1 and 8. 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 movements of the actuator bars. v Each stop on an actuator bar is adapted to cooperate with a projecting portion 35 or 36 (Figure9) 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 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. 1,823,859.

At one side of each column of key stems is a key stem lock 29 having trunnions 29a journalled in the plates 30 and 31, so that it can swing into and out of engagement with laterally positioned depressions or notches 29b and 290 (Figure 9), formed in the key stems adjacent their upper ends. The key stem lock 29 engages the notches 29b when all the keys are in raised position and is adapted to engage the notches 29c of depressed keys to hold the latter depressed.

Near the forward end of each actuator bar 13 is a slot 38 for receiving a bar lock for the actuator bar and a slot 39 for receiving a zero lock for the actuator bar as shown in Figure 4. Re-

ferring to Figure 3, the barlocks consist of a series of members 40, 41, 42, 43, one for each actuato'r bar, pivotally mounted on one side of the plate 30 at 44, 45, 46, 4'7. When no keys are depressed the bar locks depend perpendicularly, as indicated by the position of40, with solid portions of their lower ends in the slots 38 of 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, 49, 50, 51. Laterally projecting members such as pins 52, 53, 54, 55, are carried by the bar locks and are engageable by arms 56, 5'7, 58, 59, secured to the keystem lock tnmnion s 29a which. extend through the plates 30. The arm 5'7, for example, moves with the related keystem lock 29 on depression of a key in that column and acts against the pin 53 to move the bar lock 41 so thatslot 49 registers with actuator bar 13 for that column to permit its movement. The lower ends of all the bar locks are in abutment' 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 looking position. A single spring 60 associated with the right-hand bar lock 43 biases all the bar looks into locking relation with'the slots 38 or the actuator bars.

The zero locksfor the actuator bars comprise members 64, 65, 66, 6'7 (Figure 2), pivoted on the other side of the plate 30 at 68,69, '70, '71. The zero locks are biased by individual springs '72 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 Figure 4, than the zero look by an amount equal to the distance the actuator bar must, travel to bring the printing segment, to be presently described, into position to print azero. i

The zero locks normally prevent the actuator bars 13 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 80, 81, 82, 83, adapted to be acted upon by arms '76, '7'7, 78, 79, 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 13 is moved out of the slot 39 in the bar permitting the bar to be moved a number of increments corresponding to the value of the depressed key. I r

The operation of the zero locks differs from the operation of the bar locks in that the zero locks move independently of each other and remain locked except when they are individually released by operation of the keystem looks 29 as a result of depression of a key in the corresponding colunms. r

The bar locks and zero locks, when released,

are held out of locking relation position by the 125 arms 56, etc., or '76, etc., carried by the key stem locks acting against the pins 52, etc., or 80, etc. This is because when a key is depressed the key stem lock 29 is moved out of the notch 29b in the key stem and engages the notch'29c which is of lesser depth so that the key stem lock does not return to its normal position until released irom locking relation with the key stem.

its

A bell crank filpivoted on plate 30 engages the bar lock 49 'at the extreme left to eflfect simultaneous release of all the bar locks, as will be described hereinafter; A suitably guided bad '73 operable by a bell crank 73a pivoted to plate 30 and having slots 73b, into which the pins 80, etc., carried by the zero locks extend, is provided for simultaneously releasing all the zero looks, as will be described hereinafter.

Referring to Figures 4, 6, and 10, a bar 29d having a slot 29a for each key stem lock 29 is provided for releasing the key stem locks from the key stems, so that the depressed keys may be restored by their springs 2'7, and for moving the arms 56, etc. and '76, etc., associated with the pins onthe bar locks and zero locks, respectively, to

permit locks which have been released to be rel stored to locking position by the springs associated therewith. The bar 29d is biased to normal position by a spring 29) so that the notches 29e are normally disposed to permit movement of any keystem lock'on depression of a key in the corresponding column.

Bar 29d is connected by a pin 29g to one end of a lever 29h pivotally mounted at 29i in the plate 11. Lever 29h carries at its other end a dog 29k, pivotally mounted at 291, extending into the path of movement of lug or cam 13a on actuator bar 13 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 13 the cam 13a engages and pivots the dog without operating lever 29h while on forward movement of the actuator bar cam 13a engages and cams the dog 29k outwardly away from the bar 13 thereby operating the lever 29h and moving the bar 29d to the right (Figure 10) 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.

Below actuator bars 13 and the main shaft 151 which has an operating handle 151a, is the restoring frame shaft 103. shaft has adjacent each end thereof an arm 151b connected by links 1510 and 15141 to shaft 151. The shaft 103 is operable in one direction by the main shaft 151 and in the opposite direction'by springs 151e connected to pins 151] on arms 151b and to the frame of the machine at 151g. Mounted on the shaft 103 are the restoring frames 104, one for each actuator bar, having at their upper ends studs 105 which control the actuator bars 13. These restoring frames are keyed to the shaft by means of the keys 103a fitting in keyways 106 which are enlarged as shown in Figure 13, so that the restoring frames 104 have a certain extent of movement independent of the shaft 103 for a purpose to appear hereafter. Passing around each frame 104 is a spring 107 the ends of which are secured to shaft 103 so that the spring acts as a resilient coupling between the shaft 103 and the restoring frame 104 within the limits of the keyway 106.

The actuator bars which are horizontally guided in the plates 11 and 12 and vertically guided in the key stems, as above described, have lugs 13d projecting through elongated slots in the plate 12. The lugs are connected to one end of springs 130 for moving the actuator bars rearwardly, the other ends of the springs being connected to the plate at 131). At their rearward ends the actuator bars 13 have racks 37 engaging toothed portions of printing segments 84, preferably mounted on a common shaft 84a with proper provision for retaining them in alignment with the actuator bars. The printing segments 84 are illustrated as having printing portions 86 on their edges, the printing portions 86, as shown, being provided with eleven divisions, one blank and the others comprising type from 0 to 9. A platen 88 and a ribbon 87 act in conjunction with the type on the segments 84 to effect printing.

The platen 88 has a shaft 89 supp rted adjacent each end by frames 88a pivoted at 88b and connected by links 880, to arms 88d carried The restorimg frame.

by the main shaft 151. Inorder that the platen and ribbon may be moved against and away from the type faces at the proper times the links 880 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 88f are provided to move the platen 88 away from segments 84. Shoulders 881- formed on slots 88s in links 880 are adapted to engage studs 88h to move the platen frames 88a to effect printing. The links 88c have cams 88s engaging a bail 88t for raising the links 880 so that the platen 88 may be moved away from type faces 86 by springs 88f after printing has taken place, the studs 88h moving in the extensions 88a of the slots.

Numeral wheel pinions 90, each associated with a cam 91 so that a pinion and cam move together, are mounted on a shaft 94, which is supported by a frame 92 adjacent each end. The frames 92 are pivoted on a shaft 93 and springs 92a, connected between the shafts 84a and 94, are provided to bias the pinions into engagement with the toothed portions 85 of the segments 84.

The bell crank 61 for releasing the bar locks 40 etc. is connected by a link 61a to one end of a lever 61b, pivotally mounted at 12a on plate 12 The other end of lever 611) extends adjacent restoring frame shaft 103 which is provided with a cam or stud 1030. Stud 103c'is positioned for engaging and rocking lever 61b 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 130. This increment of rearward movement is provided to insure that all bars are positioned for eifecting such transfer operations as may be necessary as will appear later.

A latch 92b pivoted at 92c is provided for' tions 85 of segments 84, as will be described later.

A lever 138 carrying a roller 128 normally engaging a frame 92 to maintain the pinions 90 engaged with pinion locks 95 is pivotally mounted at 137 adjacent each frame 92. The levers 138 are biased by springs 138a into engagement with cams 136 carried by and movable with the shaft 108 for controlling the frames 92.

Pivotally mounted on a shaft 101a supported by an extension of each frame 92 are adding transfer levers 101, one for each numeral wheel pinion except that of highest order. One end 101b of each lever 101 engages the correspond ing cam 91 so that when a numeral pinion passes additively from 9 to 0 position, the raised portion 91a of the cam causes the lower end 1010 of the lever to be moved out of the path of movement of a stop 102 adjacent the rack 37 on the actuator bar 13 associated with the numeral p'nion of next higher order. The manner in which additive transfers are effected during the operation of the machine is fully disclosed in my prior Patent No. 1,823,859, and in my application Serial No. 337,287, filed February 4, 1929. and will not be described at length in this application.

Forward of each numeral wheel pinion 90 is a, l

"pinion lock 95 pivotally mounted on a shaft 96 and having teeth adapted .to mesh with the pinion-90 to retain the latter in its operated position. A subtracting transfer lever 108 is provided for each numeral pinion, except that of highest order. One end 112 of each transfer lever 108 is adapted to contact the corresponding pinion cam 91 and the lever has a stud 113 normally lying within a slot 113a in the pinion lock of next higher order. Each pinion lock 95 also has a notch 97 engageable by a stud 113 as will ried on a shaft 114 supported by the frames 92.

The levers also have arms 114D adjacent. one end of which is pivotally mounted a member 119 carrying a roller 121. A spring 119a mounted between a stud onthe member 119 and the arm 114b causes an extension of the member 119 to engage a pin 122 carried by the arm 11412 to limit the movement of the member 119 in one direction about its pivot 120. Springs 117 connected between each arm 114a and abar carried by extensions 109a of frames 92 tend to rock the levers 114a, 114b, which act through the pin and slot connections 108a to rock the ends of the transfer levers 108 rearwardly into contact with the cams 91 as the studs 113 move downwardly out of the slots 1130. in the adjacent pinion locks.

The springs 117 also tend to move the rollers 121 35 into the path of bars 123 one of which is associated with each lever. The bars 123 have camming surfaces 123a and are operable by. a bail 123b carried by arms 1230 mounted adjacent the ends of shaft 103 and movable therewith. A ball 114d carried by extensions 9812 of links 98d, 98g, one of which extends adjacent each frame 92, engages the lever arms 11% and is normally positioned to inhibit the action of the springs 117.

The raised portion 91b of a cam 91 is adapted when the associated transferlever engages the cam and the associated numeral wheel passes from 0 to 9 (substractively) torock the transfer lever 108 moving the latter'forwardly as permitted by the pin and slot connection to arm 114a. The transfer lever 108 acts on its forward movement to position stud 113 beneath the notch 9'] of the pinion lock 95 of next higher order.

Each frame 92 is connected near its upper end by a link 92c to one arm ofa bell crank 99. The bell cranks 99 are pivotally mounted on a shaft 99a and their other arms support a bail 95a normally positioned above and out of engagement with the pinion locks 95.

A subtracting lever 98b projecting through the casing is secured to a shaft 980 and is connected to the link 98d. The shaft 980 extends transversely of the machine and has fixed thereto adjacent' its other end an arm 98f connected to a link 98g. As best shown in Figure 19, the links 9811 and 98g have slots 98k engaging studs98h, on extensions 98f of levers 98, pivotally mounted at 98e adjacent each frame 92. Springs 98a bias the levers 98 to the position shown in Figure 1. The levers 98 support bails 101d and 101e, the bail 101d acting on upward movement of levers 98 to move the end 1011) of each adding transfer lever ,101 from contact with the cams 91 and the ends 1010 out of engaging relation with the stops 102 on the actuator bars 13. The bail 101e is normallypositioned in the path of movement of the ends 1010 of the transfer levers 101 for restoring the latter after they have been tripped to effect additive transfers.

Springs 9813 bias the levers 98b and the parts connected thereto to normal position.

In order that the adding pinions may be meshed with the toothed portions 85 of the printing segments 84 at the proper time for effecting subtraction, the lever 98b is operatively connected to slides 62, one of which is mounted on each of the frames 92 and suitably guided at 62a for vertical'movement. The links 98d and 98g operable by shaft 980 are connected to hell cranks 98p, each pivotally mounted ona frame 92. The bell cranks 98p each have a slot 981' receiving a stud 62d, also extending into a slot 62c in the corresponding slide 62. The connections 62d, 981', permit movement of the frames 92 without actuating links 98d and 98g, and theconnections 62d, 62c permit movement of the slides without moving the links, whereas the rocking of bell cranks 98p by the subtracting lever 98b through the links acts through slots 981; studs 62d, and slots 62a to raise the slides. Adjacent its lower end each slide carries a stud 62b adapted to engage the arm 63a of a bell crank 63 pivoted on the frame of the machine at 6312. The other arm 6300f each bell crank pivotally supports a latch tripping member 92] adapted on rocking of bell crank 63 to engage a pin 92g on the pinion frame latch 92b to move the.- latter about its pivot out of latching relation with the associated pinion frame 92. A spring 63d is connected to trip 92 and pivot 63bvfor restoring trip 92f and bell crank 63. 1

Each frame 92 carries a stud 92h for also controlling the corresponding latch 92f, as will be described. Y

Referring particularly to Figure 19, each of the slides 62 has a cutout portion 620 which 5 normally registers with a cutout portion 922' on the adjacent frame 92. When the pinions are in engagement with the toothed portions 84 of sectors 85. the slots 620, 922', normally permit ,thefr'ee movement of studs 88g carried by the links 88c connecting the platen frames 88a to the main shaft l5l. When the slides 62 are raised the cutout portions 620 move from registration with the cutout portions 922' of frames 92 and extended by contact of studs 88g with slides 62 to move frames 92 to disengage pinions 90 from the toothed portions 85 at the end of the printing operation and to maintain the pinions demeshed until latches 92b become effective to hold the frames against movement in subtracting 1'. I

and totalling operations, as will be described.

In order that no printing can occur in the totalling operations as to columns to the left of the amount so to be printed, -I provide a cipher lock 134 for each actuator bar.

pivoted on the shaft 101a which is also the pivot of the adding transfer levers 101. At its upper end each cipher lock lever 124 has a cam surface 124a normally engaging the raised portion 91!) Referring also to Figures 15 to 18, cipher lock levers 124 are ,solid portions of the slides align with the cutout 125 s the cipher locks 134 to move into position to be of the corresponding'cam 91 and at its lower end a bearing surface 126. Below each actuator bar 13 is a cipher lock 134 pivotally supported on a shaft 129 slidably mounted in guides 129a on the side frames of the machine. Each cipher lock 134 is held against the bearing surface 126 of the corresponding cipher lock lever 124 by a tension spring 131 while the superior spring 132 tends to force the cam surface at the upper end of lever 124 against the pinion cam 91. The bottom edges of the actuator bars are cut away to form shoulders 133 adapted to engage the upper ends. of the cipher locks 134 when the latter are engage the shoulders 133 of the actuator bars.

Each cipher lock, except that at the extreme left, is provided with a laterally offset projection 134a which is adapted to overlap the next adjacent cipher lockin the series. This arrangement insures that, when any one of the pinions 90 with its cam 91 has moved from zero position permitting the cipher lock lever 124 to move off the raised portion 91b of the cam to the position shown in Figure 11 and to carry with it its cipher lock 134, those cipher locks to the right of said cipher lock will be carried rearwardly therewith by means of projections 134a. In the position assumed by the cipher locks so moved about the shaft 129 their upper ends are displaced from the path of movement of the shoulders 133 on the bars 13 when all the cipher locks are moved upwardly and the latches 135 cannot engage with the slots 135a of the respective cipher locks during totalling operations.

The total key 74 and subtotal key 75 are guided in the plates 10 and 11. Referring also to Fig ures 6 and 7 key stern lock 74a is provided for engaging notches in the keys 74 and 75 to maintain the latter in depressed position until the lock 74a is released, whereupon the keys may be raised by their springs 75b and 741). Key stem lock 74a is provided with trunnions for pivotal movement in a bracket 74d on plate 30. An arm 74c on'the lock 74a is connected by a link 74c to an arm 74f on one of the keystem locks 29, so that the lock 74a is released therewith to permit the total and subtotal keys-being restored by their springs.

The total key has a lug 74g positioned above a lug 750 on the subtotal key, so that depression of the total key also effects depression of the subtotal key. The subtotal key is connected to one arm of a bell crank 75d fixed to a shaft 75a. The other arm of bell crank 75d is connected by a link 75! to an arm 12% on the shaft 129 on which the cipher locks 134 are pivotally mounted. The shaft 75c extends transversely of the machine and adjacent itsother end carries .an arm 759 (Figure 4) connected by a link 75h to another arm 12% also mounted on the shaft 129. The arrangement is such that depression of the sub-total key, or depression of the total key acting through the lugs 74!) and 750 on the total and sub-total keys, causes movement of the links 75f and 75h forwardly. This causes the shaft 129 to move upwardly in the guides 129a under the influence of the arms 12% and this upward movement of the shaft 129 carrying the cipher locks 134 causes the ends of engaged by the shoulders 133 on the actuator bars.

The links 75) and 75h are connected to bell cranks 7510, one of which is pivotally'mounted adjacent each frame 92. The bell cranks 751:: are also connected to members 751 each having at their upper ends a seat 7511 resting beneath one of the levers 98. ed on operation of the sub-total key, either directly or from the total key, to raise the members 75n and turn levers 98. This movement of levers 98 is only enough to cause movement of the ends 1010 of adding transfer levers 101 sufficiently to disengage them from the stops 102 on actuator bars 13 and thereby permit movement of frames 92 to cause engagement of pinions with the toothed parts of segments 84. However, this movement of transfer levers 101 is not great enough to move the ends 101b of the lever from paths of the raised portions 91b of cams 91 and thus the transfer levers remain effective to serve as zero stops for the pinions 90. The links 75) and 75h are also provided with studs 75i for engaging the arms 63a of the bell cranks 63 to cause release of the frame latches 92b.

The lug 750 on sub-total key 75 is adapted to engage and operate the bell crank 73a associated with the zero locks 64, etc. (Figure 2). Key 75 also has a lug 75a for operating bell crank 61 which pertains to the bar locks 40, etc. (Figure 3). Thus, operation of sub-total key 75, directly or from total key 74, effects simultaneous release of the bar locks and zero locks for all the actuator bars.

A shaft-74h extends transversely of the machine and adjacent one end has an arm 74: (Figure 4), and adjacent the other end a bell crank 741:. One arm of bell crank 74k is connected to total key 74 so that depression of the latter rocks the shaft 74h. The other arm of the bell crank and the arm 742' are connected by links 741 and 7471 to links 74p which are pivotally mounted on the slides 62. The links 741 and 74n have pin and slot connections 741' to the links 7411, so that movement of links 741 and 7412 by depression of key 74 causes the slides 62 to be raised, whereas upward movement of the slides 62 by subtracting lever 98b through links 9801 and 98g and levers 98p does not cause movement of the links 741 and 74n connected to shaft 74h and total key'74.

The operation is as follows:

The adding operation will be described first. When a key in any column is depressed the key stem lock 29 for that column is moved out of engagement with the notch 29b of the key stem. The arm 57, for example, moves with its key stem lock and acts on pin 53 on the bar lock 41 moving the slot 49 into alignment with the actuator bar 13 to permit its movement. e 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 Figure 3, where depression of a key in the fifth column from the right has caused the key stem lock 29 of that column to move arm 57 releasing bar lock 41 for the actuator bar' 13 of the fifth column. The bar lock 41 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 position. It should also be noted that unless a key is depressed in a particular The members 751 are adapt- The arm 77 also moves with the key stem lock 29 for the. fifth column andacts on the pin 81 on the zero lock 65 for that column moving zero lock 65 out of the notch 39 in the actuator bar 13. As the key is depressed, the key stem portionbetween notches 29b and 290 acts. on key stem locks 29 to cause the bar locks and zero locks to be /of moved slightly beyond released position byarms 57, 59a and '77, 78. Springs 60 and '72 act on the right bar lock and-the released zero locks to move arms 57, 59a, and 77, 78, through studs 53, 55a, etc. and 81, 82 to move the keystem locks sufficiently to engage notches 290 to hold the keys in depressed position. 7,,

When the operating handle151a secured to the main shaft 151 is moved forwardly, the restoring frame shaft 103 is moved counter-clockwise (Figures 1 and 5), carrying the restoring frames 104 and permitting the actuator bar springs 13o to move the actuator bars rearwardly. The actuator bars for columns in whichvkeys have been depressed move rear'wardly until a stop, such as 14,

on these actuator bars engages a projection of the key stem for limiting the movement of the printing segments by racks 3'7 to an amount corresponding to the value of the depressedkeys.

The combination of the bar locks and the zero locks insures 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 that any bar lock which is thrown out carries all of its right hand neighbors with it to permit the actuator bars 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 84 for these columns to zero printing positiomthe movement of these bars being limited by their zero locks.

\ The actuator bars to the left of the amount en-- term. on the keys are held by their bar locks ing frames 104.

and do not follow the movement of the restor- As the restoring frame shaft is rotated the cams 136 turn therewith, permitting springs 13811 to turn the arms 138 moving the rollers 128 from contact with the pinion frames92 to permit numeral pinions 90 to be moved by springs 92d from engagement with pinion locks 95 and into engagement with the toothed portions 85 ofprinting segments 84. However, pinions 90 do not engage the toothed portions during the.

rearward movement of the actuator bars'in addition, inasmuch as the pinionkframes are held .by

the latches 92b. a

After the segments 84 have been indexed in printing position the studs 105 of restoring frames 104 move rearwardly therewith away from the actuator bar-s 13 which are held by the key stem stops, bar locks, or zero looks, as the case The platen frames 88a are brought forwardly by the main shaft 151 through the arms 88d .and links 880 subsequently to the termination of the rearward movement of the actuator bars the platen 88 and the ribbon 87 engage the type portions 86 of the segments 84 which have been adjusted to the printing line in accordance with the movement of the actuator bars.

After links 880 have moved the platen again the type faces the forward movement of the links 880 causes the cams 88s to engage the bail 88t raising the links so that the offset parts of slots 88c register with the studs 88h on the platen frames springs 881 then act on the platen .frames to" move the platen away 1 from the type faces as studs 88h move intheparts 8814,

the slots 88c. After the printing has been effected the studs 1030 moving with restoring frame shaft 1013 move lever 61b about the pivot 12a andacting through link 61a turn bellcrank 61. This movement of .bell crank 61 moves all the non-released barlocks 7 ed by the engagement bf-the rearward end of slots 39 with the zero locks, this arrangement insuring that all bars are movable at least the one increment that may be required to effect additive transfers.

At the end of the forward stroke of the operat- I ing handle the studs 105 on the restoring frames adjacent pinion frames 92 contact the latches 92b, disengaging the latter from the pinion frames, which are then' moved rearwardly by the springs 92a so that the pinions 90 move from engagement with the pinion locks 95'a'nd into engagement with the toothed portions 85 of the printing segments. As the pinions 90 move into l0l are carried with the pinion frames 92 so that the ends'101c of the transfer levers are moved rearwardly into juxtaposition with the stops 102 on all actuator bars which have not been released by their zero locks, all stops 102 having been moved rearwardly at least one increment during the movement of bars 13, as described above. The movement of'theframes 92. also carriesthe sub- I tracting transfer levers 108 therewith and the studs 113 move downwardly in the slots 113a in the pinion locks.

rearward movement of the restoring frames 104, turn restoring frame shaft 103 carrying frames 104 therewith to engage the actuator bars for moving actuator bars forwardly. The studs 105 on the restoring frames adjacent the pinion When the operating handle is. released the main springs 151e, which were tensioned during the frames 92 move from engagement with the latches 92b and the springs 92d move these latches into Figure 5. I

engagement with the pinion frames, as shown in latter are moved forwardly. During the forward movement of the actuator bars the racks 37 there on restore the printing segments 84 and the toothed portions 85 thereof, being engaged with the pinions 90, operate the pinions in accordance with the numerals entered on the keyboard. As the actuator bars move forwardly the stops 102 engage the ends 1010 of transfer levers 101 which hold the actuator bars one step from normal position} In the event that any numeral pinion has been rotated from thenine position through the zero position, the raised portion 91a of the cam 91 associated with that pinion rocks the corresponding transfer lever 101 rearwardly, moving the. end 1010 of the transfer lever out of the path of the stop 102 on the actuator bar of next higher order. The restoring frame 104 for this actuator bar is moved relatively to the restoring frame shaft 103 by its spring 107 while the pinions 90 are engaged with the toothed portions 85, so that the actuator bar is restored to normal position and the corresponding numeral pinion is rotated an additional step to efiect an additive transfer. All of the actuator bars for orders into which transfers are not'efiected are maintained one step from normal position by the engagement of the stops 102 with the corresponding transfer levers. This transfer mechanism and its operation is more fully described in my prior applications, as stated above.

At the end of the rearward movement'of the operating handle the cams 136 on shaft 103.move the rollers 128 .on levers 138 into engagement with pinion frames 92, rocking the latter to move pinions 90 from engagement with the toothed portions 85 and into engagement with the pinion locks 95. During this movement of the frames 92, the bail a moves out of engagement with the pinion locks. As the pinion frames are moved rearwardly the transfer levers 101 are carried, therewith and all actuator bars which have been held from normal position are moved forwardlv by the springs 107 of the restoring frames, as the stops 102 on the actuator bars follow the move-' ment of the ends 1010 of the transfer levers. The ends 1010 of the transfer levers 101 which have been tripped to effect 'a transfer engage the bail 101a carried by the levers 98 and are restored to normal position in abutment with the stops 102 on the actuator bars of next higher order.

As the pinion frames 92 move forwardly the subtracting transfer levers 108 are carried therewith and the studs 113 move upwardly'to normal position in slots 113a in the adjacent pinion locks 95 (Figure 1). As the pinions 90 are demeshed the frames 92 move latches 92b downwardly and studs 92h move with frames 92 to permit the springs 63d to position trip members 92 above the pins 92g on the latches (Figure 1).

On rearward movement of the actuator bars to index the printing segments the cams 13a thereon engage the dogs 29k pivoting the latter about the pivots 291 without effecting movement of the levers 29h and bar 29d. However, as the actuator bars 13 which have cams 13a move forwardly to normal position each cam engages the related dog 29k. As pins 291i prevent pi otal movement of dogs 29k by cams 13a on forward movement of the bars 13 the dogs are oammed sideways and act to rock the lever 29h about pivot 29i. As a lever 2971. is turned about its pivot it moves the bar 29d so that the shoulders of the notches 29c engage the key stem locks 29 moving the latter from engagement with the notches 29c of the key stems. The springs 27 associated with the depressed keys return the latter to normal position.

As the cam 13a moves beyond and from engagement with thedog 29k the bar 29d is returned to normal position by the spring 29). On return of the bar 29d the shoulders of the notches 29c move away from the key stem locks 29. The spring 60 associated with the bar lock of lowest denomination, acts to pivot all the released bar looks so that the slots 48 etc. are 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 72 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 29b as the arms 56, etc., and 76, etc., 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 movedto normal position, the springs associated with these locks bias them against the 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 98b is moved to and held in operative position. It is to be understood that latching means of any desired form may be provided for retaining the lever 98b in operated position if it is desired to render it unnecessary to hold it in operative position. Lever 98b acts through the links 98d and 98gto move the levers 98 about their pivots. The levers 98 act through'the bail 10111 to move the ends 1010 of the adding transfer levers 101 from engagement with the stops 102 on the actuator bars and to move the ends 101b of the transfer levers from engagement with the pinion cams 91 and out of the paths of movement of the raised portions 91b thereof.

As the bail 114d is moved rearwardly on the extensions 9812. of the links 9811 and 989, the springs 117 act on the lever arms 114a to move the subtracting transfer levers 108 downwardly and rearwardly so that their ends 112 engage the pinion cams 91, and to move the rollers of the members 119 downwardly into position to be engaged by the camming surfaces of the bars 123. The slots 110 in the transfer levers 108 permit the latter to move downwardly on the shaft 109 and the studs 113 move downwardly out of the slots 113a in pinion locks 95 (Figure 12).

The movement of links 98d and 93g by subtracting lever 98b also rocks bell cranks 98p. On rocking of bell cranks 98p the slides 62 are moved upwardly in guides 62a on pinion frames 92. On upward movement of slides 62 the cut out portions 62:; move from registration with the notches 92i in the frames 92 and solid portions move into alignment therewith.

The pin and slot connection 74r between the links 74p, carried by slides 62, and the links 741 and 7411., permits movement of slides 62 without effecting movement of the links 742 and 741:.

which are connected to total key 74. The studs 62b adjacent the ends of the-slides engage the arms 63a of bell cranks 63 and turn the latter to may move the printing segments in accordance;

with the value of depressed keys; the bar locks for columns to the right of a depressed key are released to permit the bars to index members 84 in zero printing position, the movement of the bars being limited by their zero lacks 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 be printed in these columns.

When the operating handle is moved forwardly the shaft 103 turns and the cams 136 permit the springs 138a to act on levers 138 to move the rollers 128 from engagement with the ,pinion frames 92. Since the latches 921) have been released from engagement with the pinion frames by the trips 92f the springs 92a act to move the numeral pinions 90 from engagement with pinion 'locks 95 and into engagement with the toothed portions 85 of the printing segments (Figure 5). The restoring frames 104 are carried with the shaft 103 to permit certain actuator. bars to move in accordance with the values of depressed keys and others to move as far as the zero printing position.

During the movement of frames 92, but prior to ,meshing of pinions 90, the released actuator bars index the zero printing portion of segments 84 to the printing line. pinion frames 92 move forwardly the pins 92h thereon move to swing the trips 92f away from the latch pins 92g. The latches are operated .by their springs 92d to again engage the pinion frames 92 (Figure 5). During the "rearward movement of the actuator bars, as the restoring frames 104 turn with shaft 103, the printing segments 84 are moved to printing position and the numeral pinions areoperated subtractively in accordance with the values of the keys depressed.

After the actuator bars have indexed the printing segments in printing position, platen 88 is' moved against the type faces to effect printing, as previously described. After printing has taken place, the studs 88g carried by links 880 move toward the notches 921' in the pinion frames and since these notches are now closed by the slides 62 the studs 88g engage the slides 62 on the frames 92. n

In the arrangement described, the studs 88g are carried on members 88k to which springs 89m are connected. Consequently, on engagement of studs 88g with slides 62 the springs 8811 are further tensioned by the pins 88p moving with links 88c while studs 88g are temporarily held byen-' gagement with slides 62. On tensioning of the springs 881i, which are stronger than springs 92a associated with frames 92, they act to move the frames to carry the pinions 92 from toothed portions 85 and into engagement with pinion locks 95. Studs 88g may be fixed to'links 88c and act As the lower ends of thegaged relation by the latches 92b.

directly on the frames but are preferably resiliently mounted thereon for a purpose which will hereinafter become apparent. As the pinions 90 are demeshed the pins 92h on frames. 92 permit the springs. 63d to move the latch trips 92] rearwardly against pins 92g on latches 921), which, however, are held away from frames 92 by the studs 105 (Figure 21).

After printing has occurred and the pinions 90 have been disengaged, all the bar locks for ac-' 85 tuator bars which have not moved to or beyond zero indexing position are released, and these bars move one step rearwardly and are held by their zero looks, as previously described.

When the operating handle is released and 90 moves rearwardly, the main springs 151e act to move. the restoring'frames 104 forwardly. The studs 105 move away from the latches 92b which are moved by their springs 92d to engage the pinion frames92 for holding the pinions 90 out v of engagement with the toothed portions 85 and in engagement with the pinion locks 95. As the links'88c are moved rearwardly the studs880 move from engagementwith the slides 62 on pinion frames 92, the arrangement being such that 106 the studs move more rapidly than the studs 889, so that the latches 92b may maintain the pinions demeshed during the return of the bars 13. The springs 88? act to maintain the studs 88g against the slides 62 on the frames 92' as the 105 pins 88p move with links 880 until the,latches- 92h engage the frames 92 after the studs 105. have. moved away from the latches. As suge gested above, thestuds 88g might be fixed to links 880 and act directly on the frames. The resilient 11L mounting of studs 889 is provided as a precautionary measure, in addition to the difference in rate of movement of studs 105 and links 880, to insure engagement of latches 92b when links 880 move rearwardly and studs 105 move, away from the latches. I

As the restoring frames 104 turn with the shaft 103 they drive the actuator bars forwardly to- 'ward normal position and restore the printing segments to position their blank portions at the printing line, but they do not eifect operation of the numeral pinions 90 which are held in disen- If, during the rearward'movement of the ac-.- tuator bars, any of the numeral pinions 90 move from zero throughthe nine position (subtractively),'the raised portion 91b of the associated cam 91 engages the corresponding transfer lever 108 rocking the latter forwardly to position stud 113 in the notch 97 of the pinion lock of next highest order. During subtraction operations the rollers 121 'of the members 119 arepositioned to be engaged by camming surfaces 123a of the bars 123 which move forwardly and rearwardly on corresponding movements of the 13;

actuator bars but not necessarilyat the same time nor to the same extent. On the rearward movement of the bars the camming surfaces of the bars engage all the corresponding rollers 114a, 114b, and the transfer levers 108 connected to the arms 114a thereof. The transfer levers 108 for those columns in which numeral pinions have not moved from zero to nine have their studs 113 positioned beneath the slots 113a in the adjacent pinion locks and the studs move in these slots without eifecting movement of the pinion locks. In those orders in which a transfer has been initiated the stud 113 of the associated transfer lever 108 has been moved from beneath slot 113a and is positioned in the notch 97 of the adjacent pinion lock. On upward movement of the members 119 and transfer levers 108 by the camming surfaces of the bars 123 the studs 113 moving upwardly turn the pinion locks 95 about the shaft 96. Since the numeral pinions are now in engagement with the pinion locks the corresponding pinions are moved an additional step by the pinion locks to effect a subtractive transfer.

When a raised portion of the cam surface of the bars 123 moves beyond the rollers 121 the springs 11'? act on the arms 114a to move the transfer levers 108 downwardly so that the studs 113 of transfer effecting levers move out of the notches 97 of the pinion looks. The tripped transfer levers are again brought rearwardly with their upper ends in contact with pinion cams 91 and studs 113 positioned in alignment with the slots 113a in the pinion looks as a result of the camming action between shaft 109 and slots in these transfer levers, thus preparing for a succeeding upward movement of levers 108 35 by bars 123 acting through rollers 121 and members 119.

The cams 136 turn with the restoring frame shaft 103 and operate the levers 133 to move the rollers 128 into engagement with the pinion 10 frames 92 at the end of the rearward stroke of the operating handle for locking the numeral pinions in engagement with the pinion locks 95.

After the pinion frames are locked by the rollers 128 on the arms 138, the springs 107 turn restoring frames 104 relatively to the shaft 103, moving the actuator bars an additional increment to restore all of the actuator bars to their normal position. The key stem locks, released bar locks, and zero locks are actuated by the operation of the cams 13a on the actuator bar or bars, and the bar locks, zero locks and depressed keys are restored to normal position, all as previously described.

At the end of the subtracting operation the subtracting lever 98b is released. When latching means are provided for this lever, as suggested above, the release of such latches may be effected automatically in any desired manner.

On release of the subtracting lever 98b it is restored by springs 98i and operates through links 98d and 989 to move the bail 114d forwardly raising the lever arms 114a, 114b, thus moving the transfer levers 108 forwardly out of engagement with the pinion earns 91 and upwardly so that the studs 113 enter and are positioned near the upper end of the slots 113a in the pinion locks 95 (Figure 1).

Links 98d and 989 also act to rock levers 98 downwardly so that the bail 101e carried by the levers 98 engages the adding transfer levers 101 moving their ends 1010 into engagement with the stops 102 on the actuator bars and their ends 1011) into engagement with pinion cams 91. Levers 98d and 989 also turn bell cranks 98p to move the 5 slides 62 downwardly positioning the slots 62c therein in registration with the slots 921 in the pinion frames 92 and also moving the studs 62b away from the arm 63a of the bell cranks 63. The bell cranks 63 are restored and the latch members 92] are again positioned by springs 63d' above the pins 92g on the latches 92b. The springs 92d of latches 92b restore the latches with pins 92g in contact with the ends of trip members 92f.

When other subtracting operations are to be performed the subtracting lever 98b is again operated and the operations described above again take place.

After a series of adding or subtracting operations have been performed, some of the numeral pinions 90 have been moved to various positions. The numeral orders in which the pinions have moved away from the zero position, either by the entry of amounts through operation of keys in corresponding columns or as a result of transfer operations, have their earns 91 positioned so that the raised portion 91b of cam 91 is out of engagement with the corresponding cipher lock lever 124. The springs 132 associated with these cipher lock levers turn the levers about the shaft 190 101a to maintain the upper end of the levers in contact with the earns 91 and the lower end 126 of each lever acts on the corresponding cipher lock 134 to move the latter rearwardly about the shaft 129, the force of the springs 131 associated 135 with the cipher locks 134 being overcome by the superior springs 132 associated with the cipher lock levers. Thus, certain of the cipher locks 134 have been moved about the shaft 129 to inoperative position (Figure 11).

When total key '74 is depressed the shaft 74h is turned and acts through links 741 and Mn to move the slides 62 upwardly, so that the recesses 921' in the pinion frames are closed, as previously described. This upward movement of the slides 62 does not affect the lever 98b because of the pin and slot connection 62d, 62c (Figure 19). The pins 62b near the end of slides 62 also act on the bell cranks 63 for operating the latch tripping members 92f and releasing latches 92b (Figure 11).

It will be remembered that the total key has a lug 749 which overlaps a lug 750 on the subtotal key 75, so that depression of the total key also effects depression of the subtotal key. Consequently, when total key 74 is operated to take a total the links 75f and 75h are operated through the shaft 75c and act on the arms 12% on the shaft 129 to move the cipher locks 134 upwardly so that their upper ends are positioned adjacent 130 the shoulders 133 on the actuator bars. Those cipher locks corresponding to numeral pinions which have been moved from zero position have been turned about the shaft 129, as described above, so that their upper ends are positioned 135 out of the path of movement of shoulders 133 on the corresponding actuator bars.

The cipher locks 134 for all denominations to the right of any column in which a numeral has been entered are also swung about the shaft 129 so that their ends are out of the path of the shoulders 133. This is effected by the overlapping relation of the extensions 134a on the cipher locks, it being apparent that when any cipher lock is moved about the shaft 129 all the cipher looks to the right thereof are moved therewith through the action of the extensions 134a (Figures 16 and 17). This arrangement permits the printing of ciphers to the right of a column having a numeral therein.

leasing the latches from engaging relation with the pinion frames 92 (Figure 11). Pins 62?) on slides 62 also perform this function on depres sion of the total key itself. Although there is a seeming duplication of function, it may be stated that pins 62b are provided especially for effecting release of the latches on subtracting operations as previously described.

The movement of links and 759 also turns bell cranks 75k raising the members 751. Since the seats 7511 at the upper ends of these members rest beneath the levers 98, the latter are turned about their pivots. As a result, the bail 101d acts to move the ends 1010 away from the stops 102 on the actuator bars so that frames 92 may move although some bars 13 are locked against movement by the related cipher locks 134. The ends 1011) are moved. away from cams 91 but the movement of levers 98 by members 151 is not suflicient to move the ends 1011) of the transfer levers from the paths of movement of the raised portions 91b of cams 91. As a result, the transfer levers 101 remain effective to serve as zero stops for pinions 90.

Depression of subtotal key '75 by total key 74 also acts through studs 75c and 75a on the sub-- total key to move the bell cranks 61 and 73a (Figures 2 and 3), so that all of the bar locks and all of the zero locks are simultaneously released to permit the actuator bars to move in accordance with the amount entered in the numeral pinions 90.

thereupon moved by the springs 92a so that the numeral pinions 90 move from engagement with the pinion locks 95 into engagement with the toothed portions of the printing segments 84.

As frame 92 moves the latches 135 engage the cipher locks adjacent notches 13511 of those cipher locks 134 having their ends positioned in the path of shoulders 133 in order to hold the locks firmly in raised position. The latches 135 cannot engage the corresponding cipher locks 134 which have been moved about shaft 129 by levers 124 since either figures or zeros are to be printed in the corresponding columns.

As the frames 92 move the pins 92h swing the trips 92 from engagement with pins 92g and latches 92b are operated by springs 92d to engage the frames (Figure 5) 1 When the shaft 103 turns the restoring frames 104 move therewith, permitting the actuator bars.

13 to be moved rearwardly by their sprigns 130. As the frames 104 move and prior to engagement of pinions the released bars 13 index the corresponding printers in zero printing position. This insures printing of zeros to the right of pinions having figures therein.

The actuator bars 13 for columns in which numbers have been entered move rearwardly to an extent determined by the number entered in the numeral pinions, the movement of the pinions and the indexing'of the printing segments 1 being limited by the engagement of the raised portion 91b of cams 91 with the ends 101b of the transfer levers 101 which act as zero stops for the pinions. The actuator bars 13 for columns to the left of the amount on the numeral pinions are held against any movement as the related cipher locks 134 have their upper ends positioned in the paths of movement of and are held firmly against the shoulders 133 on the actuator bar 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 880, 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 880 engage the slides 62 and 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 105 on the restoring frames 104 prevent full upward movement of latches 92a into engagement with the pinion frames as in subtraction, Figure 21.

When the operating handle on the main shaft is released and moves rearwardly the studs 105 on the restoring frames 104 move away from the latches 92b, which engage the pinion frames 92 to hold the pinions demeshed during the forward movement of the actuator bars by the restoring frames 104, as in subtraction.

As the restoring frames 104 move the actuator bars 13 to normal position the racks 37 move the printing segments 84 so that the blank spaces are again presented at the printing line. Cams 136 move levers 138 to 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 with 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 74a for the total key and subtotal key which are restored to normal position by, their springs 74b and 751). On restoration of the subtotal key the links 75fand 75h move the cipher. locks and members 751 to normal position.

Springs 981 restore levers 98b and cause the bail 101a to move the ends 101b of transfer levers 101 against cams 91 and the ends 1010 into engagement with the stops 102 on the bars 13.

On restoration of total key 74 the slides 62, latch trip 92], etc., are restored to normal position on movement of the links 751 and 7512. The springs 131, 132, associated with the cipher locks and the cipher lock levers also act to restore the latter to their normal position (Figure 1).

. 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 to close the notches in the pinion frames and the studs 88g on the links 880 cannot act to demesh the numeral pinions 90 from the toothed portions 85 of the sectors 84 after printing has taken place. Consequently, during the restoring operation of bars 13, the printing sectors and the adding pinions are operated by the racks 3'7, 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 rearward stroke of the operating handle the rollers 128 engage the pinion frames 92 and effect demesh ing of the pinions 90 from the toothed portions 85 of segments 84, as in addition.

' It will be seen that in addition and subtraction 15.

the bar locks are effective to prevent printing of ciphers to the left of a significant figure, since the bar locks normally hold the actuator bars against movement unless keys are depressed inthe corresponding columns. Further, the release of the bar locks to the right of a column in which a key is depressed is efiected by release of the bar locks in the column having a depressed key and hence the actuator bars to the right are movable at least one increment in order to cause cipher printing in these columns. Such movement of bars for columns in which no keys are depressed is limited by the zero locks which are releasable individually and only on depression of keys in the corresponding columns. Thus, the movements of these bars are no greater than necessary to cause cipher printing and undesired figures are not printed. At the same time the bar to the right may move the proper distance to print figures corresponding to key values if keys are also depressed in the columns to the right of the highest significant figure.

It should be notedthat unless a numeral pinion has been additively or subtractively moved from zero position, the corresponding actuator bar is normally held from movement in totalling operations by the related cipher lock 134 since the end of its cipher lock lever 124 remains in engagement with the raised portion of the cam 91. Thus, a cipher is not printed in the corresponding column. However, if a numeral pinion to the left of any pinion has been moved from zero position the cipher lock related to the pinion at the right is released by the cipher lock of higher denomination acting on the extension 13411 of the cipher lock of lower denomination. Consequently, the corresponding actuator bar is movable at least sufficiently to cause printing of a cipher in the column to the right of a significant figure.

It will be apparent from the above description that operation of operating handle 1510, when keys are not depressed does not result in movement of the actuator bars which are held by their bar locks. Under these conditions, a row of ciphers is not printed since the printing segments are not moved and their blank portions remain at the printing line.

It should also'be noted that if the total or subtotal key is depressed and the handle 151a operated at a time when'no values are registered by the numeral pinions 90 the cipher locks 134 prevent movement of all of the actuator bars. Consequently, the printing segments 84 remain with their blank portions at the printing line and neither zeros nor any other figures are printed.

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 necessarily represent preferred embodiments.

For example, the mechanism for moving the.

platen frame to effect printing 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 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: I

1. In a calculating machine having printing members, accumulating pinions, actuator bars for operating said members and said pinions, and means for engaging said pinions with said printing members to limit the operation thereof by said bars during totalling operations; cipher locks movable into engagement with said bars; a total key; means-controlled by said total key for moving said cipher locks into engagement with said bars to prevent movement thereof during totalling operations; and means operable by each accumulating pinion on actuation thereof from zero position, for moving its related cipher lock to render it ineffective for engaging and locking the corresponding bar to permit movement of said bar for effecting operation of the corresponding printing member.

2. In a calculating machine having printing members, accumulating pinions, actuator bars for operating said members and said pinions, and means for engaging said pinions with said printing members to limit the operation thereof by said bars during totalling operations; cipher locks movable into engagement with said bars; means for moving said cipher locks into engagement with said bars; latching means for retaining said cipher locks in locking engagement during totalling operations; and means operable by each accumulating pinion on actuation thereof from zero position, for moving its related cipher lock out of position to engage with said latching means and thereby permit movement of the correspond-, ing bar for effecting operation of the corresponding printing member.

3. In a calculating machine having printing members, accumulating pinions, actuator bars for operating said members and said pinions, and means for engaging said pinions with said printing members to limit operation thereof by said bars during totalling operations; pivoted cipher locks movable into engagement with said bars; a total key; means controlled by said total key for moving said cipher locks into engage-' member by said bar during totalling operations;

a shoulder on said actuator bar; a pivoted cipher lock adapted to engagesaid shoulder for locking said bar to prevent operation of said printing member; a total key: means controlled by said total key for moving said cipher lock into locking engagement with said bar; and means operable by said accumulating pinion on actuation thereof from zero position, for turning said cipher look about its pivot to render said lock ineffective for engaging and locking said actuator bar to permit movement of said bar for eifecting operation of said printing member.

5. In a calculating machine having printing members, accumulating pinions, actuator bars for operating said members and pinions, and in which said pinions are operative to limit the operation'of said printing members by said bars during totalling operations; shoulders on said bars; cipher locks adaptedto bear at one end against said shoulders to lock said bars against movement, said ends of said locks being normally out of the path of movement of said shoulders to permit operation of said printing members and said accumulating pinions by said bars; means for moving said cipher locks into engagement with said bars to prevent movement thereof during totalling operations; and means operable by each accumulating pinion on actua-r tionthereof from zero position, for rendering its related lock inefiective for engaging and locking the corresponding bar to permit movement of said bar for effecting operation of the corresponding printingmember.

6. In a calculating machine having printing members, accumulating pinions, actuator bars for operating said members and pinions, and in which said pinions are operative to limit the operation of said printing members by said bars during totalling operations; shoulders on said bars; cipher locks adapted to bear at one end against said shoulders to lock said bars against movement, said ends ofsaid locks being normally out of the path of movement of said shoulders to permit operation of said printing members and said accumulating pinions by said bars; a total key; means controlled by said total key for moving said cipher locks to position said ends thereof in the path of movement of and in engagement with said shoulders to lock said bars against movement during totalling operations; and means operable by each accumulating pinion on actuation thereof from zero position, for moving its related cipher lock to render it ineifective for engaging and locking the corresponding bar to permit movement of said bar for effecting operation of the corresponding printing member. 7. In a calculating machine having printing members, accumulating pinions, actuator bars for operating said members and pinions, and in which said pinions are operative to limit the operation of sai printing members by said bars during totalling operations; shoulders on said bars; pivoted cipher locks adapted to bear at one end against said shoulders to lock said bars against movement, said ends of said locks being normally out of the path of movement of said shoulders to permit operation of said printing members and said accumulating pinions by said bars; a total key; means controlled by said total key for moving said cipher locks to position said ends thereof in the path of movement of and in engagement with said shoulders to lock said bars against movement during totalling operations; and individual means operable on actuation of each accumulating pinion from zero position to turn the related cipher lock aboutits pivot for positioning said end of said lock out of the path of movementof; the shoulder on the corresponding bar. p f

8. In a calculating machine having-printing members, accumulating pinions, actuator bars for operating said members and said pinions, and means for engaging said pinions'with said printing members to limit the operation thereof by said bars during totalling operations; shoulders on said actuator bars; cipher locks adapted to bear against said shoulders to lock said bars against movement; a total key; means controlled by said total key for moving said cipher locks into engagement with the shoulders on said bars;

latching means for engaging said cipher locks to retain said cipher locks in engagement with the shoulders on said bars to lock said bars during totalling operations; and means operable by each accumulating pinion on actuation thereof from zero position, for moving its related cipher lock out of position to engage with said latching means and thereby permit movement of the corresponding bar for eflecting operation of the corresponding printing member.

9. In a calculating machine having printing members, accumulating pinions, and actuator bars for operating said members and pinions; shoulders on said actuator bars; cipher locks each provided with a slot and adapted to bearat one end against said shoulders to lock said bars against movement; latching means for engaging said cipher locks adjacent said slots to retain the ends of said locks against the ,shoulders on said bars; and means for engaging said accumulating'pinions with said' printing members for operation by said actuator bars, said ends of said locks being normally out of the path of movement of said shoulders to permit movement of said bars, and said latching means normally extending freely through the slots in said locks without engaging said cipher locks to retain the latter in looking engagement with said bars.

10.' In a calculating machine having printing members, accumulating pinions, and actuator bars for operating said members and pinions; shoulders on said actuator bars; cipher locks each provided with a slot and adapted to bear at one end against said shoulders to lock said bars against movement; latching means for engaging 115- by said actuator bars, said ends of said locks being 120 I normally out of the path of movement of said shoulders to permit movement of said bars, and said latching means normally extending freely through the slots in said locks without engaging said cipher locks to retain the latter in looking 1.25

engagement with said bars; a total key; and means controlled by said total key for moving the ends of said cipher looks into the path of movement of said shoulders on said bars, and for causing said latching means to engage said cipher locks to retain the ends thereof against the shoulders of said actuator bars for preventing movement thereof during totalling operations.

ii. In a calculating machine having printing members, accumulating pinions, and actuator bars for operating said members and pinions; shoulders on said actuator bars; cipher locks each provided with a slot and adapted to bear at one end against said shoulders to lock said bars against movement; latching means for engaging said cipher locks adjacent said slots to retain the ends of said locks against the shoulders on said bars; means for engaging said acciimulating pin ions with said printing members for operation by said actuator'bars, said ends of said locks being normally out of the path of movement of said shoulders to permit movement of said bars, and said latching means normally extending freely through the slots in said locks without engaging said cipher locks to retain the latter in looking engagement with said bars; a total key; means controlled by said total key for moving the ends of said cipher looks into the path of movement of said shoulders on said bars, and for causing said latching means to engage said cipher locks to retain the ends thereof against the shoulders of said actuator bars for preventing movement thereof during totalling operations; and means operable by said accumulating pinions on actuation thereof from zero position to turn said cipher locks about their pivots for moving the slots in said locks away from said latching means to render said means ineffective to latch said cipher locks and to permit movement of said bars during totalling operations.

12. In a calculating machine having printing members and numeral pinions, and actuator bars associated with said printing members and said numeral pinions for operating said members and said pinions bar locks engaging said bars for preventing movement of said bars and operation of said members and pinions thereby; zero locks for limiting movement of said bars to prevent operation of the printing segments beyond zero printing position; a total key; means controlled by said key for releasing the bar locks and zero looks when a total is to be taken to permit movement of their associated actuator bars; and cipher locks controlled by said key for selectively locking the actuator bars associated with those numeral pinions to the left of the pinion representing the highest denomination that is to take part in the totalling operation against movement during the totalling operation.

13. In a calculating machine having printing members and numeral pinions, and actuator bars associated with said printing members and said numeral pinions for operating said members and said pinions; bar locks engaging said bars for preventing movement of said bars and operation of said members and pinions thereby; zero locks engaging said bars to limit movement thereof to prevent operation of the printing segments beyond zero printing position; a total key; means controlled by said key for releasing the bar locks.

and zero locks when a total is to be taken to permit movement of their associated actuator bars; cipher locks controlled by said key for locking the said actuator bars, associated as aforesaid with said printing members and pinions against movement during .the totaling operation; and means controlled by the numeral pinions adapted on displacement of any pinion from zero position to cause the cipher lock for the corresponding actuator bar to be moved from operative position to permit movement of said bar and operation of the corresponding printing members during total taking operations in accordance with the displacement of said pinion.

- 14. In an adding machine having printing members, movable actuator bars for operating said printing members, numeral pinions and means for moving said numeral pinions into engagement with said printing members; locking means for normally maintaining said numeral pinions from engagement with said printing members; bar locks for preventing the movement of said actuator bars and operation of said members thereby; zero locks for limiting movement of said bars toprevent operation of said members beyond zero printing position; normally inoperative cipher locks adapted to prevent movementof saidactuator bars; a total key; means controlled by said key for releasing saidbar locks and zero locks to permit movement of said actupinion; a shoulder on said bar; a shaft guided for movement toward and away from said bar; a cipher lock mounted on'said shaft; a total key; means operable by said total key for moving said shaft to cause said cipher lock to engage said shoulder for locking said bar against movement during totalling operations; and means operable by said pinion on actuation thereof from zero position, for rendering said cipher lock ineffective for engaging said shoulder and locking said bar.

16. In a calculating machine having a printing member, an accumulating pinion and movable actuator bar for operating said member;

a shoulder on said bar; a shaft guided for movement toward and away from said bar; a cipher lock pivotally mounted on said shaft; a total key; means operable by said total key for moving said shaft to cause said cipher lock to engage said shoulder for locking said bar against movement during totalling operations; a cipher lock lever engaging said cipher lock and operable by said pinion to pivot said cipher lock on said shaft for rendering said lock ineffective to prevent move- 1 ment of said actuator bar; and means for engaging said member and pinion to cause the latter to limit the operation of said member by said bar.

17. In a calculating machine having a printing member, an accumulating pinion and movable actuator bar for operating said member and pinion; a shoulder on said bar; a shaftguided for movement toward and away from said bar; a cipher lock mounted on said shaft, said cipher lock being provided with a slot; a latch normally extending freely through the slot in said cipher lock to permit pivotal movement thereof; a total key; and means operable by said total key for moving said shaft to cause said cipher lock to engage the shoulder of said bar and for causing said latch to engage said cipher lock adjacent said slot to hold said lock against pivotal movement in engagement with said during totalling operations.

18. In a calculating machine having printing members, accumulating pinions, and movable actuator bars engaging said members to operate shoulder for preventing movement of said bar them; shoulders on said bars; a shaft extending transversely of said bars and guided for movement toward and away from said bars; a cipher lock for each bar pivotally mounted on said shaft and movable therewith to position one end thereof in the path of movement of the shoulder on the corresponding bar; overlapping projections on said cipher locks; individual means operable by each accumuating pinion on movement thereof from normal position for pivoting the corresponding cipher locks about said shaft means operable by said key for moving said shaft to cause said ends of said cipher lock to engage said shoulders to lock said bars against movement, the ends of the pivotally moved cipher locks being displaced from the paths of movement of the shoulders on the corresponding actuator bars and inefiective to lock said bars; and

means for engaging said accumulating pinions

Images