US1874277A - A cobpobation of - Google Patents

Description

Aug. 30, 1932. F. L. FULLERH 1,874,277

CASH REGISTER -Filed May 21, 1926 4 Sheets-Sheet 1 Aug. 30, 1932. F. L FULLER 1,874,277

CASH REGISTER Filed May 2l, 1926 n 4 Sheets-Sheet 2 tro: nu;

Aug. 30, 1932. v F, L, FULLER 1,874,277

CASH REGISTER Filed May 21, 1926 4 Sheets-Sheet 5 UIL." v

(g1/Loekie@ F. L. FULLER 1,874,277

CASH REGISTER Filed lay 2l, 1926 4 Sheets-Sheet 4 INVEN TOR.

Fred eri ck L.`Fu11er Patented Aug. 30, 1932 UNITED STATES PATENT OFFIC FREDERICK L. FULLER, OF ILION, NEW YORK, ASSIGNOR, BY MESNE ASSIGNMENTS, T0 THE NATIONAL CASH REGISTER COMPANY, 0F DAYTON, OHIO, A CORPORATION 0F MARYLAND CASE REGISTER.

Original application tiled November 19, 1918, Serial No. 269,125, and in Great Britain September 19, 1919.

Divided and this application led May 21, 1926. Serial 110,615.

This invention relates to cash registers and particularly to transfer or carrying mechanisms used in connection with the totalizing devices.

5 This application isa division of the copending application of Frederick L. Fuller, Serial Number 263,125 filed November 19, 1918, Patent No. 1,742,701, January 7, 1930, to which reference may be had for a more complete description of one cash register to which the present-invention has been applied. However, while the improvements set Vforth in this application are shown applied to a particular type of cash register illustrated in the parent application, their utility is by no means limited to this specific embodiment. The improvements are of such a nature that they may be applied in various modifications to many other kinds of cash registers and accounting machines.

A board object of the present invention is to provide an improved mechanism for positively transmitting motion from each totalizer wheel of a lower order to the totalizer wheel of the next higher order wh en the lower order totalizer wheel has completed a full rotation.

More speciically it is an object of the present invention to provide a transfer mechanism comprisingl a tripping device actuated by a tripping member associated with the wheel of the lower order so as to set a trans fer trip tooth in its transfer position in order that the latter may be actuated during the continued operation of the machine to advance the totalizer wheel of the next higher order one step.

Other objects of the present invention are to provide improved means for preventing accidental displacement of the totalizer wheels when out ot engagement with their actuating segments and in connection therewith to provide an improved type of mechanism whereby the possibility of over-carrying of the totalizer Wheels is positively prevented whenever the machine is subjected to improper usage.

lVith these and incidental objects in view the invention consists of certain novel features of construction and combination 0f parts, the essential elements of which are set forth in the appended claims and a preferred form of embodiment of which is hereinafter described with reference to the drawings which accompany and form part of this specification.

Of said drawings:

Fig. 1 is a transverse sectional view of the machine to which the present invention is applied and shows the means for actuating the totalizers and the transfer operating arms for efecting transfers.

Fig. 2 is a transverse sectional view of the machine illustrating the devices whereby the multiple totalizers are selected for operation.

Fig. 3 is a detail v iew showing the mechanism under control of one of the totalizer selecting keys for disabling the engaging device associated with the undesired totalizer.

Figs. 4 to 8 are sectional views of the totalizer illustrating the transfer mechanism and associated devices and showing the position that the parts assume when transfers are being effected.

Fig. 9 is a view in perspective of the transfer spool.

Fig. 10 illustrates the means for preventing overthrow of the totalizer wheels when the machine is improperly operated.

Fig. 11 is a back view of the totalizer showing the totalizer wheels and pinions and their relation to the transfer devices. This view also illustrates part of the resetting mechanism for the totalizers.

Fig. 12 is a cross sectional view through the totalizer showing the turn-back pawls whereby the totalizers may be manually reset to zero.

Fig. 13 is a detail view of the resetting segment showing its co-operation with the resetting pinions attached to the totalizer resetting shafts.

Keg/s, key coupler and ZM/ving mechanism other devices.

The keys are pivoted upon a rod 21 and resting u on the rear ends of the keys 20 is a key coup er 22 pivoted at 23. When the outer ends of the keys are depressed the key coupler is rocked clockwise about its pivot and its nose 24 enters the notches 25 in the rear ends of the keys. The construction and purpose of key coupler mechanisms are well known in the art and need not be discussed herein in detail.

. As is shown in Fig. 1 each amount key 20 is formed with an upwardly extending arm' 26 carrying a roller 27 engaging a slot 28 in a -cam plate 29 rigidly mounted in a frame 30 loosely mounted upon the shaft 31. The slots 28 in the cam plates 29 are graduated so that each of the keys will impart a different degree of movement to the frame 30. The cam plates 29 are furthermore provided with arcuate slots 32 to permit the upward tilting ofthe cam plates without interfering with the rollers of the remaining unoperated keys. Secured to the frame 30 is a segmental rack 33 which is in continuous mesh with a pinion 34 rigid with its corresponding item type wheel 35. Upon the depression of any key a number corresponding to the value of the depressed key is thus set up on the type wheel 35. It will be understood that a frame 30, segment 33, pinion 34 and type wheel 35 are associated with the group of nine keys 20 of each decimal order.

Connected to the key coupler 22 is a rack plate 36 provided with oppositely facing rack teeth 37 adapted to alternately engage the teeth of a pinion (not shown) fast to an operating shaft 38. The result of this mechanism is such that as the key coupler is rocked by the keys the rack is raised and lowered and by the alternate engagement of the two sets of rack teeth with the pinion drives the shaft 38 in such a manner that a complete reciprocation of the key coupler will effect a Complete rotation of the shaft.

l The shaft 38 carries cams and other devices for operating various parts of the mechanism. The mechanism for effecting rotation of the shaft has not been shown or described in detail because it is so old and well known in the art.

Multiple totalizers Below the item type carriers are two totalizers of which the upper one, is, for convenience, designated as the A totalizer 39 and the lower as the B totalizer 40. These totalizers may be used for the purpose of registering amounts for separate depart` ments or clerks, or any segregated analysis desired.

In order to engage the registering wheels of the selected totalizer with the dierential- 1y moved segmental racks 33 any suitable type totalizer engaging devices shown in the parent application of Frederick L. Fuller, Serial No. 263,125 is employed, and for this reason is briefly explained hereinafter. v

Each totalizer (as shown in Fig. l1) comprises a frame 43 carrying a shaft 44 on which p arel loosely mounted a series of accumulating elements 45 each element having attached thereto a pinion 46 which is adapted to engage the teeth of the actuating racks 33. Each totalizer fame 43 is pivotally mounted between parallel supporting frames 47 (Figs. 1 and 1l)-by means of journal pins 48 and is adapted to be rocked about the journal pins as a pivot to bring the pinions into and out of engagement with the actuating racks 33.

In the present embodiment of the invention the upper totalizer has been appropriated to receive the amounts registered by the A clerk while the lower 'or remaining totalizer is placed under the control of the B clerk and in order to effect this result there are provided two clerks keys designated by reference characters 4l and 42 (Fig. 2). The devices for engaging the desired totalizer will now be described.

Totalz'zer engaging mechanism Pivotally mounted upon a transverse shaft 49 (Fig. 2) situated near the base of the machine is a lever 50 carrying rollers 51 co-operating with a pair of complementary cams 52 attached to the rotation shaft 38. The lever 50 is riveted by means of a pin 53 to a bail 54 and integral with the bail is a for- Wardly extending lever 55 secured to which is a pin 56. The profile of the complementary cams 52 is such that the bail 54 and lever 55 are given an oscillating movement during each operation of the machine and this movement is utilized to effect the engagement of the desired totalizer with the actuating racks.

Adjacent the left supportin frame 47 are totalizer engaging slides 57 and 58. rlhe A totalizer engaging slide 57 is provided with a cam slot 59 which engages the A totalizer supporting shaft 44. In a similar manner the B totalizer engaging slide 58 is provided with a cam slot 61 co-operating with totalizer wheel supporting shaft 44 of theBtotalizer. Both of the these slides are apertured at their upper ends to engage the item type wheel supporting shaft 63 while at their lower ends the slides are slotted at 64 to engage the stud 56 carried by the lever 55. Due to the above construction it will be evident that whenever a slide is reciprocated its cam slot co-operating with the associated totalizer wheel supporting shaft 44 will rock the related totalizer about its pivot to bring the pinions into and out of engagement with the actuating racks 33.

Pivotally mounted upon the pin 56 are two totalizer throwout plates, the one associated with the lower or B totalizer indicated by rac A reference character 65 and the one associated with the A .totalizer by referencecharacter 66. The throwout plate 66 is provided with' a cam slot 67 engaging a pin 68 carried by the A totalizer engaging slide 57. In a similar manner the B throwout plate 65 is likewise provided with a cam slot engaging.a pin'carried by the/B engagin g slide 58. The configuration of the cam slot in either the plates 65 and 66 is such that when either plate is rocked about its pivot 56, from the normal position (shown in Fig. 2) it will raise its associated slide. The purpose of this mechanism will appear later as the specification progresses.

Loosely mounted upon a shaft 69 are a plurality of throwout balls, 7 0 indicatin the one associated with the A totalizer an 71 indicating the one associated with the B\total izer. The bail has integral therewith a downwardly extending arm 72 bifurcated at its lower end to receive a pin 73 carried by the cam plate 66. In a similar manner the throwoutybail 71 has integral therewith a downwardly extending arm 74 co-operating with a pin similar to the pin 73, but attached to the throwout cam plate 65. Each of the bails 70 and 71 are provided with upwardly extending arms 75 and 76 respective] to which are attached sprin s 77 which ten to retain the bails and cam p ates in the position shown in Fig. 2.

Associated with B totalizer throwout bail 71 is a plate 78 provided with a. shoulder 79 normally engaging the underside of the bail 71. The plate 78 is further provided with a cam edge co-operating with a pin 80 attached to the A key 42. In a similar manner referring to Fig. 3 the B key is provided with a pin 81' engaging the forward cam edge of a cam plate 82 which is provided with an extension engaging the underside of the A throwout bail 70. From the above it will be noted that the A key, through its cam plate 78 operates with the B throwout bail 71, while the B key, through its pin 81 and cam plate 82, operates theA throwout bail 7 O.

A summary of the operation of the above described devices and the manner in which they operate so as to automatically throw in the B totalizer and to disable the A totalizer or vice versa, Will now be given.. To effect the engagement of the B totalizer i the B key 41 is operated and since the key coupler 22 rests upon the rear ends of the clerks keys the key coupler 22 will be rocked clockwise about its pivotal point, and the complementary cams 52 working upon the rollers 51 will rock the arm 50 and bail 54 clockwise and through the lever 55 will rock the pin 56 downwardly. Since the totalizer engaging slides 57 and 58 are connected to the lever 55 by their associated throwout plates 66 and 65 respectively,

both of the engaging slides 57 and 58 will be moved downwardly and since the totalizer wheel supporting shaft 44 of the B totalizer co-operates with the cam slot 61 of the engaging slide 58 it will rock the B totalizer frame clockwise about its pivotal point, bringing the totalizer pinions into engagement with the actuating racks so that upon a continued depression of the amount keys the item will be entered in the totalizer.

It will be noted that if no preventive means were provided the downward movement of the engaging slide 57 would also force the A totalizer into mesh with the actuating racks, 'but it will be noted that when the B key was depressed the pin 81 (Fig. 3) carried thereby operated upon the cam plate 82 so as to rock the A throwout bail 70 clockwise.A Clockwise movement of the bail 70 through the arm 72 and pin 73 rocked the A throwout bail 66 rearwardly at the same time that the A totalizer engaging slide 57 was being moved downwardly. The net result of the downward movement of the engaging slide by the pin 56, and the upward movement by the rearward movement of the cam plate 66, is that the A totalizer engaging slide 57 will remain substantially in the position shown in Fig. 2 and the A totalizer will, therefore, not be thrown into operation.

When itis desired to enter an amount in thel A totalizer, the operation of the mechanism is similar to that just described, with the exception that the A key 42 will be depressed so that the pin 80 working upon the cam plate 78 will rock the B throwout cam plate 65 rearwardly at the same time that the pin 56 is drawn downwardly, the result of this being that the B totalizer engaging slide will, in this case, remain substantially in the position shown in Fig. 2 and only the A totalizer will be engaged with the operating racks.

After the desired totalizer has been engaged with the actuating racks, the racks are then moved differentially so as to actuate the pinions differentially an amount commensurate with the value of the keys depressed. At the extreme end of the downward stroke, or, if desired, during the first part of the upward stroke of the keys the selected totalizer is disengaged from the actuators and remains disengaged during the time the keys are returned to their normal positions.

Transfer mechanism As shown in Fig. 11 each adding wheel 45 has secured thereto at one side a disk 83 carrying a trip tooth 84 and to the left of 125 the disk is secured the totalizer pinion 46 carrying ten teeth. It will be evident, if, for example, the units wheel is moved during an item entering operation so that it passes from its nine to its zero position, a

` unit must be transferred from the units to the tens wheel in order that the adding wheels will indicate the true amount. In general, provision must be made to transmit a unit to any higher denominational order each time the next lower denominational order adding wheel passes from its nine to its zero position.

At times it is necessary to effect transfers by transfers. For example, assume that 929 stands on the totalizer and 71 is to be added.

At the end of the *'Operation the totalizer`r wheels should indicate the total 1000. The units pinion during the operation will be moved one step by its actuator to its 0 position, and a unit should be carried to the tens wheel. The tens pinion, however, by the movement of its actuator and the carrying mechanism will have passed from the 2 position to the 0 position and it will be necessary to car a unit to the hundreds totalizer wheel. n the same manner since the hunred totalizer wheel now stands at 07 a unit must be transferred to the thousands totalizer wheel in order to represent the correct total. lt will be evident that if l is added to any wheel by the transfer mechanism simultaneously with the actuation of the same wheel by the actuators, a unit will be lost and an incorrect total will result. For this reason it is necessary in order to accumulate correct totals, that some provision be made to prevent such loss of a unit. This may be accomplished by having the transfers eected upon the 11p-stroke of the keys, that is, when the totalizer pinions are out of mesh with the actuators. Furthermore, in order to eEect transfers by transfers it is necessary to actuate the transfer mechanism successively, first the transfer mechanism between the units and tens order, then the transfer mechanism between the tens and hundreds order, &c.

With the above in mind, the improved means for effecting transfers between successive orders will now be described. The mechanisms for eecting transfers between successive denominational orders are alike and in view of this fact the transfer mechanism of one totalizer between the units and tens order only will be described.

As stated before each totalizer wheel 45 has attached to it at one side a transfer disk 83 which carries a trip tooth 84. Journaled in the totalizer supporting frame 43 is avshaft 85 (Fig. 11) which is the supporting means for most of the elements comprising the transfer devices. Loosely mounted on the shaft 85 are a plurality of transfer spools, oneof which is shown in perspective in Fig. 9, and as will be noted consists of a square shape retaining member 86, a spider 87 and a star wheel 88, which may be formed of one integral piece or may be joined together by any suitable means t'o properly space each element. l As is shown in Fig. 11, each s ool is so arranged on the shaft 85 that the spider 87 is in the plane of the transfer tripping projection 84 and the starwheel 88 of the same unit is in the plane or opposite the pinion 46 attached to the next hi her order totalizer wheel 45. Also journale in the totalizer supporting frame 43 is a shaft 89 (Fig. 4) which is parallel to the shafts 85 and 44 and which carries a series of retaining pawls 90, each provided with adjacent notches 91 and 92. These pawls are aligned with the retaining members 86, and urged toward the retaining members by springs 93, the notches 91 and 92 co-operating with the square corners of the retaining members.

It will be observed that each star wheel 88 is in the plane of the totalizer pinion of the next higher denominational order so that a point will engage at times one of the teeth of the pinion to advance the totalizer wheel a unit when the transfers are to be eected.

Loosely mounted upon the shaft 31 ig. l) are transfer operatingarms 94 having recessed forward edges 98 to clear the totalizer pinions, and provided with rearward extensions 95 carrying at their rear ends oppositely disposed anti-friction rollers. The rotation shaft 38, which as stated before is given a complete rotation upon each operation of the machine, has secured thereto a series of complementary cams 96 and 97, the peripheries of which are in contact with their associated anti-friction rollers. The cams 96 and 97 are spirally arranged about the shaft so that in a cycle of rotation of the shaft 38 the cams will actuate the transfer arms successively, first the tens transfer arms, then the hundreds, etc. It is, of course, necessary that a transfer arm be provided foreach transfer device, and in the illustrative embodiment six transfer arms are necessary, but it is evident that if the registering capacity of the registering totalizer be altered, a corresponding change in the number of transfer arms must be made.

The sequence of operation of the transfer devices is illustrated in Figs. 4 to 8, inclusive, Fig. 4 showing the normal position of the parts,-the totalizer having been rocked to engage the totalizer pinions 46 with the racks 33 the latter being for the sake of clearness omitted in this figure. If, for example, 9 has been standing upon the units totalizer wheel and a unit is added thereto the segmental rack will advance the units pinion one step and in so doing the units wheel will pass from 9 to 0. The trip tooth 84 will, during the time it passes from 9 to 0, engage an arm of the spider 87 and rock the spool slightly clockwise from the Fig. 4 position to the Fig. 5 position, wherein it will be noted that the square corner of the retaining member 86 co-operates with the upper notch 92 of the aligning pawl 90. It Will be seen that this partial rotation of the spool has brought a point of the star wheel 88 into a notch 99 formed in the transfer operating arm 94 the transfer operating arm at this time being stationary.

The transfer device is now positioned to advance the tens wheel a unit since the point of the star wheel forward of the one engaging the notch 99 has been advanced to a positlon in which, upon further rotation it will enage the pinion 46 of the'tens order wheel. Fear the extreme down-stroke of the key, or during the first part of the upstroke," the totalizer will be moved out of engagement with the se mental racks, as hereinbefore described, an in so doing will assume, with respect to the transfer operating arm 94 the position shown in Fig. 6, wherein it will be noted that the point of the star wheel 88 is still in co-operation with the notch 99 of the transfer arm. The transfer arm 94 is now moved downward by its controlling cams 96 and 97, rotating the star wheel 88 and associated parts thru the Fig. 7 position, another point of the star wheel 88 co-operating with the pinion of the tens order and advancing the tens order wheel one step. Further downward movement of the transfer operating arm 94 brings the transfer spool to the position shown in Fig. 8 wherein the spool is again in normal position, with the next corner of the square retaining member 88 engaging the notch 91.

In the event that the spool has not been carried far enough in a clockwise direction in the transferring operation, the cam face 100 of the transfer operating arm 94 will engage the rear edge of the point of the star wheel 88 and by a camming action adjust it to its proper position. On the other hand,-

if the transfer spool has been over rotated,

the projection 101 of the transfer arm cooperating with the next point of the star wheel will adjust the transfer spool to the proper position.

In actual use machines of this character may be subjected to improper usage and abuse, and to deliberate attempts on the part of the operator to cause them to mis-function or register incorrectly. The keys are frequently operated with considerable force and violence. Under these conditions the operations of totalizer engaging, totalizer actuation, transfer setting, totalizer disengaging and transfer completion are performed in rapid sequence. The totalizer wheel to which a transfer is made being rapidly turned may tend to over-rotate, with the result that an incorrect registration would be indicated. To preclude the possibility of such overcarrying, and to prevent accidental displacement of the totalizer pinions from their proper positions when disengaged from their actuators, the following devices are provided.

A series of paw'ls 102 (Fig. 11) are pivotedon the shaft 89. Each pawl is pressed toward its totalizer pinion by the spring 93, which it will be remembered also controls the aligning awl 90, and is provided with a downwar extension 103 (Fig. 10) havinga concave face 104. LooselyI mounted upon the shaft are a series of arms 106 each provided with a nose 105 for engagement with the face 104 of the aligning pawl 102, and a stud 107 fitting in the notch 99 of the related transfer operating arm 94. Normally the transfer arm 94 holds the arm 106 in the position shown in Fig. 4 wherein it will be noted that the projection or nose 105 1s out of engagement with the downward extension of the aligning pawl 102. It will be noted that in Fig. 7 if the transfer arm 94 4was actuated rapidly the point of the star 88 engaging the totalizer pinion would probably impart such a rotation to the totalizer wheel as to over-carry, but it will be noted that when the point of the star wheel leaves the tooth of the pinion 46 the nose 105 is moving towards the concave face of the aligning pawl 102 so that at the proper point in the transferring operation the nose 105 engages the cylindrical face 104 of the aligning awl 102 (Fig. 10) and since the latter is he d against movement the pinion is locked against overthrow due to momentum.

From the foregoing description it will be evident that during each operation of the machine the transfer arms are actuated successively irrespective of Whether the transfers are to be effected. When no transfers are to take place none of the points of the star wheel 88 will be rocked into engagement with the notch 99 of the transfer arm, and as the transfer arm moves downwardly the forward edge will pass in back ofthe trip points preventing the transfer spool from being turned accidentally.

Resettz'ng devices In order to reset the totalizer to zero the following mechanism is employed. As best shown in Fig. 11 the shaft 44 of each totalizer is provided with a series of notches 110 which are normally out of co-acting relationship with turn back pawls 111 (Fig. 12) carried by each of the totalizer elements 45. Attached to the end of the shaft 44 is a pinion 112 (Fig. 11) which is normally out of the plane of the teeth 113 of the resetting lever 114 loosely mounted on the shaft 31. The shaft 44 also carries at one end a knurled knob 115. In order to reset either totalizer, the associated knurled knob 115 is moved laterally so as to engage the resetting pawls with the associated notches 110 and the pinion 112 with the segment 113 and by drawing the handle of the resetting lever downwardly the shaft 44 will be rotated and the notches 110 will pick up the variously positioned pawls 111 of the totalizer wheels 45 and return the latter to zero. The transfer tripping projections 84 of each of the transfer disks 83 will therefore be rotated in a clockwise direction, as viewed in Fig. 8, so that the transfer tripping projection 84 will, at the end of the rotative movement of the totalizer wheel tozero position come in contact with an arm of the spider 87 preventing further reverse movement of the totalizer wheel past zero position. At this point all the totalizer elements willl stand at zero and the resetting segment may be returned to its normal position without eect-I ing the position of the zeroized totalizer wheels.

'Io prevent overthrow of the wheel of the highest order while resetting it will be noted that the arm 102 at the extreme right has attached thereto a pin 116 engaging a disk 117 loosely mounted upon the sha t 85. Integral with the disk 117 is an element havinga projection 118 similar to the transfer tripping projections 87. By engagement ef the transfer to'oth 84 of the wheel of the h1ghest order with the projection 118 this wheel will be prevented from being moved beyond its zero position during the resetting operation.

In order to permit the engagement of the pinion 112 with its segment 113 only when the segment is in its home position each pinion 112 is provided with a large tooth 119 engaging a correspondingly wide recess formed in the resetting segment. It will be seen that the pinion cannot engage the segment except whenthis wide tooth is in alignment with the large space of the segment, and theI only time that this can occur is when the resetting lever is in its normal position.

rIhe nature of the improved mechanism is such that in order to make the foregoing description as clear as possible, it was necessary to state the operation considerably in detail as an incident to explaining the various features of construction, and a complete restatement of operation here is believed to be unnecessary.

Although this type of transfer mechanism has been shown in connection with a particular type of cash register it is readily evident that with minor changes it may be applied to other forms of cash registers, and accounting and adding machines.

While the form of mechanism herein shown and described is admirably adapted to fulfill the objects primarily stated it is to be understood that this embodiment is merely illustrative, as the invention is susceptible of embodiment in various other forms all c omng within the scope of the claims which folow. l

What is claimed is:

1. In a machine of the class described, the combination with a series of keys, a shaft, a segmental rack mounted on the shaft, means operated by the keys for moving the seg-- mental rack differentially, a pivoted totalizer frame carrying a plurality vof pinions, means for moving the frame to effect the engagement and disengagement of the segmental rack and its related pinion, transfer iwheels carried by the totalizer frame for effecting transfers from lower to higher order pinions, transfer arms mounted co-axially with the shaft for rotating the transfer Wheels, and cams for operating the transfer arms seiiatim.

2. In a machine of the class described, the combination with a series of keys, a shaft, a segmental rack mounted on the shaft, means operated by the keys for moving the segmental rack differentially, a pivoted totalizer frame carrying a plurality of pinions, means for moving the frame to e'ect the engagement and disengagement of the segmental rack and its related pinion, transfer devices for the registering pinions carried by the frame having a projection, a transfer arm mounted on the shaft having a notch extending radially with respect to the shaft, said notch being adapted to be received by the projection of.

its related transfer device, and a cam for operating the transfer arm.

3. In a totalizer, a series of registering units of different denominational orders comprising a registering wheel and a pinion connected therewith, a transfer spool spanning adjacent units provided with a star wheel adapted to mesh with the pinion of the wheel of higher order, a transfer arm, means for causing a partial actuation of the spool when a registering wheel of lower order passes from 9 to 0 whereby the star wheel is positioned to be actuated a full step by the transfer arm, and spring urged means normally engaging said totalizer pinions and means controlled by the transfer arm for positively locking said spring urged means against the pinion of the higher order Wheel after it 'has received a transfer.

4. In a machine of the class described, a totalizer comprising a plurality of pinions of different denominational orders, item entering means for said totalizer, a series of transfer devices for transferring from lower to higher order pinions, means for operating all .of the transfer devices seriatim following each operation of the item entering means, a series of elements lying normally in ineffective position for locking the totalizer pinions for preventing overthrow by the transfer devices, and means operable on each operation of the `item entering means for moving all of said locking elements to effective position when the transfer devices have been operated.

FREDERICK L. FULLER.

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