US2199253A

US2199253A - Transfer mechanism for key-set

Info

Publication number: US2199253A
Authority: US
Publication date: 1940-04-30
Anticipated expiration: 1957-04-30

Description

April 30, 1940. G. J. BARRETT TRANSFER MECHANISM FOR KEY-SET ADDING MACHINES Filed May 6, 1938 5 Sheets-Sheet 1 INVENTOR Glenn Jflairez.

ATTORN EYS p i 0, 1940. G. .LBARRETT 2.199.253

TRANSFER MECHANISM FOR KEY-SET ADDING MACHINES Filed May 6, 1938 5 Sheets-Sheet 2 INVENTOR ATTORN EYS Ap 30, 1940. G. J. BARRETT 2.199. 53

TRANSFER MECHANISM FOR KEY-SET ADDING MACHINES Filed May 6, 1938 5 Sheets-Sheet 5 ATTO R N EYS April 30, 1940- G. J. BARRETT 2,199,253

I TRANSFER MECHANISM FOR KEY-SET ADDING MACHINES Filed May '6, 1938 5 Sheets-Sheet 4 April 30, 1940- G. J. BARRETT Z.1@9,253

I TRANSFER MECHANISM FOR KEY-SET ADDING MACHINES Filed May 6, 1938 5 Sheets-Sheet INVENTO R 6 /617121 Bwrat BY yam/Sim ATTORN EYS Patented Apr. 30, 1940 PATENT OFFICE TRANSFER MECHANISM FOR KEY-SET ADDING MACHINES Glenn J. Barrett, Syracuse, N. Y., assignor to L. C. Smith & Corona Typewriters,

Inc.,

Syracuse, N. Y., a corporation of New York Application May 6, 1938, Serial No. 206,378

11 Claims.

This invention relates to improvements in means for transferring the tens from one denomination to the next higher, in adding machines of the key-set classification having a keyboard of numeral keys arranged in denomina tional order, an oscillating main operating mechanism, oscillating actuating sectors, totalizer units periodically in engagement with said oscillating sectors respectively, a printing mechanism, a total key, and connections for positioning operative members to the end that the correct total as registered upon said totalizers may be recorded, governed by the rotation of said totalizers backwardly to the zero point,--features understood by those familiar with this art and illustrated in Patent No. 1,811,8 issued June The invention as illustrated in the drawings and described herein comprises a planetary connection between a driving member and its cooperating oscillating sector in each denominational column, as a means for effecting the transfer of the tens by the movement of a cooperating transfer lever. The invention alsoincludes a resetting means, and means for rendering said resetting means inoperative for the purposes hereinafter set forth. 1

One of the important objects of this invention is to provide means whereby change in the zone of adding movement of the sectors is effected at any point during addition when any one of the totalizers passes the 9 point, the final accumulation of the transferred unit being transmitted to the accumulators during the adding of the final unit. By positioning the zone of movement one space toward the rear the accumulators are rotated one space farther than normally in accumulating the actual number set up in the respective columns. By reason of the fact that in this invention the transferring of the tens is accomplished during actual additions, no portion of the movement of the main operating mechanism need be reserved for this purpose; nor is it necessary to have means for accurately timing the transfer mechanism with relation to the actual adding movement in order tosecure an accurate transfer of the tens.

The invention is illustrated as applied to a keyset adding machine of the type shown and described in Patent No. 1,811,840 dated June 30, 1931, wherein the totalizers are mounted in a swinging frame, the movement of which frame through the main operating mechanism shifts the totalizer units out of and into mesh with the actuating sectors, this being an operation common to machines of this class.

In the drawings,

Fig. 1 is a diagrammatic side elevation showing the main operating cam and the total keyand connections for controlling the total-taking operation;

Fig. 2 a diagrammatic sectional view showing the transfer mechanism associated with a keyboard of the type shown in Patent No. 1,811,840 for determining the extent of movement of the adding sectors;

Fig. 3 a detail view, partly in section, of the transfer mechanism with parts in normal positions before a transfer;

Fig. i an end elevation of the parts shown in Fig. 3;

Fig. 5 a view similar to Fig. 3 showing the position of the apparatus after the transfer operation;

Fig. 6 a detail side elevation of a totali'zer unit;

Fig. '7 a detail view of the transfer mechanism, the parts in position for adding 9;

Fig. 8 a detail side elevation, partly in section, of one of the adding sectors and its associated operating parts;

Fig. 9 a detail view of one of the drivers;

Fig. 10 a detail view of one of the transfer levers;

Fig. 11 a partial front elevation of the means for operating the resetting bail; and

Fig. 12 a partial plan view of the totalizer frame showing the totalizer units therein.

Referring to the various parts by numerals, i designates the main oscillating actuating shaft adapted to be operated by handle l indicated by dotted lines in Fig. 1, and 2 the main actuating cam mounted on the main shaft. 3 designates the total key and 4 a total-clearing lever pivotally mounted at 5 and connected to the total lever by pin 6, whereby said lever may be oscillated through the total lever. A spring I returns the total-clearing lever to normal position after actuation by the total key 3. Below the main operating cam is mounted a pivoted arm 8 on the forward end of which is mounted a rockable lever 9 having an upwardly eiitending arm carrying a roller i0 and a downwardly. extending arm carrying a roller II. On the arm 8 is arranged a pin i2, and the lever 9 is formed with a stop lug l3 which engages said pin to hold the roller H) in its normal operative position.- A spring l4 holds the stop lug I3 yieldingly in contact with the pin I2. The roller It is normally in position to be engaged by the high portion l5 of the main cam when the main operating shaft is rotated in an anti-clockwise direction by the handle operation as indicated by the arrow in Fig. 1. The portion l5 of the main operating cam 2, when it engages the roller l0, forces downwardly the arm 8 and, through the link It connecting said arm 8 to the lever swings the totalizer frame upwardly and demeshes the adding sectors from the totalizer wheels. The return of the main operating cam to its normal position permits the spring Hi to move the totalizer frame to return the totalizer wheels into mesh with the adding sectors.

When the total key 3 is moved rearwardly the lower end IQ of the total-clearing lever engages the roller ll of lever 9 and swings said lever on its pivot and moves the roller I out of the path of the high portion of the main operating cam. The oscillation of the main operating cam. then has no effect upon the accumulator frame and the totalizer wheels remain in mesh with the adding sectors.

Any suitable means may be employed for moving the totalizer frame to mesh and demesh the totalizer wheels with the actuating sectors, and any suitable means actuated through the movement of the total-taking key may be employed for disabling the totalizer-frame-moving means during the total-taking operation. The mechanism shown forms no part of this invention and is illustrated merely as indicating one form of the mechanism in a key-set adding machine for accomplishing the desired and necessary operations of the totalizer unit.

The adding sectors are connected by links 2!] to the stop slides 2| which are provided with stop ears or lugs 22 adapted to engage the tail stops 23 of the keys 24. The stop slides 2| limit the movement of the adding sectors in accordance with the depression of the keys 24 as described in connection with the operation of the adding sectors in the aforesaid Patent No. 1,811,840, and need not be more fully described herein. Any suitable form of key-set means for determining the extent of the movement of the adding sectors may be employed.

The actuating or adding sectors are positioned for additions and this positioning is determined and limited by the depression of the numeral keys in the various columns. During the forward movement of the main operating mechanism the totalizers are moved out of engaging relation,

with cooperating sectors, and the sectors positioned for adding movements. During the return movement of the main operating mechanism the totalizers are returned to engaging relation with their actuating sectors and the sectors forced back to normal position as illustrated in Fig. 3, these movements being well understood by those familiar with this art.

In the present invention adding sectors 25 are pivotally mounted at 26 upon a suitable cross rod mounted in the frame of the machine, and oscillate thereon; are arc-shaped and provided with gear teeth on their arcuate outer edges adapted to engage the teeth of the totalizer pinions. A sector driver 21 is provided for each sector 25, said drivers being pivoted axially with the sectors 25 on the same transverse pivot rod. Each driver 21 is connected by suitable linkage to cooperating type-positioning means through link 28 in order to position the type for printing.

As shown in Fig. 2, link 28 is connected at its lower end to the forwardly extending arm of a type positioning lever 10 mounted for vertical swinging movement on a cross rod TI. The rear end of the rearwardly extending arm of said lever may be connected to a type bar 12 to position the type for printing. A spring 13 is connected to the forwardly extending arm of lever 10 and to a cross bar in the machine frame to assist in moving the lever on its pivot to pull down the links 28 and raise the type bar. A main operating bail 14 is mounted on the cross rod The cross rod 16 of the main operating bail normally engages the lower edge of the forwardly extending arm of the type positioning lever ill to normally position and hold said lever and the driver 21 connected to it by link 28, in normal at rest position. A spring 11 is connected to link 28 near its upper end, the lower end of said spring being connected to the cross rod 16 of the ball 14. It is to be understood that all of this mechanism, except the main operating ball, is repeated for each denominational order. The slide 2| is released for movement by the depresslon of its associated key 24, as is usual in machines of this type.

The main operating bail I4 is moved downwardly by suitable means (not shown) actuated by the main shaft on the forward stroke of the operating handle. As said bail moves downwardly it extends spring which then exerts a downward pull on link 28 and the connected driver 21. If a key 24 has been depressed, the stop slide 2| connected to the adding sector 25 will permit the driver to move the associated sector 25 until the slide 2| is stopped by the depressed key. The downward movement of the link 28 will swing the type-positioning lever and raise the type bar to printing position. On the return stroke of the operating handle the main operating bail is raised to normal position thereby returning the lever 10 to normal position, and through link 28 and the connected driver, moving the adding sector in adding direction and restoring the connected stop slide 2| to its normal position.

Each sector driver is in the form of a bell crank lever, one arm of which is connected to the link 28. The other arm of said bell crank extends substantially radially of the axis of the lever and carries a planetary gear 29, which is in effect a toothed lever, rotatably mounted thereon and arranged close to the side of its cooperating adding sector 25. tor 25 is provided with pins 30 arranged in an arc concentric with the axis of the sector and forming gear teeth which engage the teeth of the cooperating planetary gear 29.

Mounted co-axially with the adding sectors and adapted to oscillate on the same transverse pivot rod are transfer levers 3|. These levers are formed with fulcrum teeth 32 concentric with their axes, which mesh with teeth of the planetary gears 29. The free ends of the substantially radial locking arms 33 of these transfer levers are formed with looking notches 33 and catch-positioning surfaces 33 which are adapted to be engaged by suitable catches. Radially arranged resetting lugs 34 are carried by the transfer levers and are adapted to be engaged by a resetting ball, as hereinafter described.

It will be understood that there is an adding sector, a sector driver with its planetary gear. and a transfer lever for each denominational column, the number depending upon the capacity of the machine.

The totalizers are mounted in a swinging frame 35 pivoted on a transverse cross bar 36 suitably mounted and positioned in the frame of the Each adding secmachine. The frame is connected to lever I1 in such manner that it will be movedupwardly to carry the totalizer wheels out of mesh with the geared adding sectors 25 and into engagement with the stationary detent fingers 31, and then back into engagement with the adding sectors, through the operation of the main actuating mechanism, as hereinbefore described. The detents 5'! may be suitably supported in the frame'of the machine, there being one detent for each accumulator wheel mounted in the totalizer frame.

Each totalizer unit comprises a hub 38, a driving pinion 39 with ten teeth, a dial portion 40 carrying numerals 0 to 9 on its face, and a trigger 4|. There is a totalizer unit for each denominational column, the number depending upon the capacity of the machine. The totalizer units are mounted to rotate on a transverse rod 48 mounted in the swinging frame 35. The swinging frame 35 is divided longitudinally by plates 35 into sections or compartments, and in each of said compartments is arranged one totalizer unit as shown clearly in Fig. 12. The division plates 35 are mounted at their ends on the

cross rods

35 and 42. If it is not desired to have the total accumulated in the totalizer visible, the dials 41! may be omitted.

' Pivotally mounted on the cross bar 42 in th free end of the swinging frame 35 are transfertripping levers 43. Each transfer-tripping lever has a depending latch-releasing arm 44 extending substantially vertically downward from the pivot rod 42, and a trigger-engaging arm 45 extending into position to be engaged by the trigger 4| of the cooperating accumulator unit. There is one transfer-tripping lever for each accumulator unit. Each transfer-tripping lever is provided with a spring 46 to return it to normal position after it has been tripped or actuated by its cooperating trigger 4|. The springs 46 normally hold the tripping levers 43 in position against the transfer stop bar 41 mounted in the swinging frame 35.

On a cross rod 49 suitably supported in the frame of the machine are pivotally mounted a catch. 50 and a series of catches 5|. Catch 50 is formed with an arm 5|) having an inturned lug 5|! engaging the locking notch 33 of the locking arm 33 of the transfer lever 3| of the first column. Catch 5!] is also formed with an arm 5|] having an inturned stop finger 50 adapted to be engaged by a stop shoulder, formed by a notch 25 in the adding sector 25 of the first column, when lug 50 is in locking notch 33 This catch 50 serves to restrain or hold the transfer lever 3| against the tension of the spring 3P. A spring 52 holds the catch 50 in engagement with the transfer lever 3| with. stop finger 5n in position to be engaged in the notch 25* of the adding sector 25.

There is a catch 5| for the second column and for each column of higher denomination. Each catch 5| is formed with an arm 5| having at its lower end an inturned locking lug 5| adapted to engage the notch 33 of arm 33 of its cooperating transfer lever 3|. Each catch 5| is also formed with an upwardly extending arm 5l having at its upper end an inturned stop finger 5| adapted to engage a stop shoulder formed by the notch 25 in its cooperating adding sector 25. The arm 5| is also formed with an outwardly turned trip finger 5| which extends into the path of and is adapted to be engaged by depending catch-releasing arm 44 of the transfer-tripping lever 43 of the totalizer unit of the next lower denominational order. A spring 53 is connected to each catch 5|, said springs yieldingly holding said catches in engagement with their cooperating .transfer levers 3| with stop fingers 5V in position to be engaged by the stop shoulders formed by notches 25. Each adding sector 25 is formed with a notch or step 25 to form a stop shoulder which is adapted to engage the stop finger 5i of the cooperating catch 5|, when said catch is tripped to move 5| out of line with the stop shoulder of notch 25 and release the locking lug 5| from its cooperating transfer lever 3|. This construction permits the adding sector to move one space in adding direction when the catch is released through the operation of the cooperating transfer-tripping lever 43, as will be hereinafter described. When the locking lug 55 is released from notch 33 spring 3| swings the transfer lever on its pivot and locking lug 5l rides on the edge 33 and the stop finger 51 is held in position to be engaged by the shoulder formed by the notch 25.

The catch 50 of the first column is not provided with a trip-engaging finger corresponding to the fingers 5| of the catches 5|, because there is no transfer to the first column and obviously there is no transfer-tripping lever 43 for that column. A transfer lever 3| and catch therefor are provided for the first column in order that the planetary gear of the first column will be rotated about the teeth 32 of the transfer lever to give the adding sector a movement corresponding with the movement of the sectors in the higher denominational columns both in positioning the type for printing and in the adding operation. The trip lever43 of the last denominational column, whatever may be the capacity of the machine, functions only as a stop for the trigger 4| cooperating therewith in the totaling operation.

A transfer-resetting bail extends across th adding machine to which the invention is applied. This bail comprises two end plates 54 pivotally supported on a cross rod 55 suitably mounted in the machine frame. The free ends of these end plates are connected together by a rod 55 which is adapted to engage the resetting lugs 34 of the transfer levers 3|. as hereinafter described. A spring 5! normally holds the resett ng bail up against the fixed stop 58. The normal upper position of the rod 56 of the resetting bail is shown in Figs. 2, 3 and 5. Pivotally mounted on the rod 56 at one end of the resetting bail is a depending resetting bail operating arm 59. The lower end of this operating arm is formed with a hook 60. Pivotally connected to the total-clearing lever 4 is a link 5| formed with a slot 52 in its free end. The operatin arm 59 carries a pin 63 which extends into slot 52, as shown clearly in Fig. 1.

A rocking arm 84 is pivoted at 55 on a suitable mounting in the machine frame, and. a spring 66 connected to the lower end of the arm 64 and to a suitable mounting in the machine frame maintains the rocking arm 54 in its normal position. The arm 54 carries a roller 51 adjacent the periphery of the main operating cam 2; and said cam carries a projection 58 which extends below the lower edge of the cam 2 when said cam is in its normal or at-rest position. The projection 68 is adapted to enga ge the roller '61 when the cam is rotated in counterclockwise direction through the operating handle. This contact between the projection 68 and the roller 61 moves the arm 64 on its pivot and causes a pin 69, carried by said arm 84, to engage the hook 60 of the resetting bail operating arm 59. This .will result in a downward movement of the resetting bail, said downward movement being indicated in dotted lines in Figs. 3 and 5. In said downward movement of the resetting bail the cross bar 56 will engage the resetting lugs 34 of any transfer levers that have been released for the transfer of tens, and will restore said transfer levers to their normal position and interlock them with the catches 5(|5|, or 50 if the transfer lever of the first column has been pre viously released. This operation of the resetting bail will take place during the initial movement of the main operating cam.

It is necessary to render the resetting mechanism inoperative during a total-taking operation. When the total-clearing lever 4 is moved through the operation of the total key 3 the link 6| is moved rearwardly and the end wall of the slot 62 engages the pin 63 and swings the resetting bail operating arm 59 rearwardly sufficiently to take the book 60 out of the path of movement of the pin 69 on the arm 64. The subsequent operation of the main cam will then move the arm 64 through an idle stroke and the resetting bail will not be moved for a resetting operation In the return movement of the oscillating main cam the arm 64 will be swung forward in an idle motion due to the contact of the projection 68 with the roller 61.

Operation The number to be added is set up by depressing the numeral keys in the keyboard of the proper denominational orders. The main operating handle is pulled forward in the direction indicated by the arrow in Fig. 1, to oscillate the main operating cam. The first part of the movement of the main operating cam swings the accumulator frame upwardly to move the accumulator pinions out of mesh with the teeth of the adding sectors and into engagement with the detents 37. The projection 68 on the main operating cam then engages the roller on arm 64 and swings it into position to bring pin 69 into engagement with hook 60 of the arm 59 of the resetting bail frame. The resetting bail will then be pulled downwardly to causethe bar 56 to engage the resetting lugs 34 of the transfer levers to reset back to normal any sectors that have been advanced by a transfer operation. The further movement of the main operating shaft brings about the movement of the adding sectors to the proper positions as determined by the depressed numeral keys in order to set up. through the type-positioning means connected to drivers 21, the numeral to be added, and recorded if the adding machine is provided with a printing mechanism. These operations are substantially the same as those described in the machine shown in Patent No. 1,811,840. Upon the return movement of the operating handle and the main operating cam carried by the main shaft, the accumulator frame is lowered to bring the accumulator wheels back into mesh with the teeth of the adding sectors and then, upon the return of the adding sectors to normal position, the number set up is added in the accumulator, all of which is common to key-set adding machines of the type herein described.

When the adding sector of any column moves forward to a position for adding "9 it rests in the position illustrated in Fig. 7. Because of the rotation of the gear 29 mounted on the driver 21 and meshing with the teeth 32 of the transfer lever, which during this operation is held stationary by its cooperating catch, the cooperating adding sector is moved a greater distance around its pivot than the driver. This is because the pinion 29 is also in mesh with the pins 30 on the sector and the rotation of the gear results in an added movement of the sector. As indicated in Fig. '7, when a sector moves forward to a position for adding 9 it moves through an arc of 6'7 while its driver moves only 50%, which relative degrees of movement are determined by the relative pitch diameters of the gear 29 and the teeth 32 upon the transfer levers 3|. It is obvious that each adding sector will move circumferentially a greater distance than its cooperating driver, in each operation of setting up a number to be added and in adding that number. This, of course, is due to the interposition of the planetary gear 29 which acts as a lever fulcrumed on the teeth 32 of the cooperating transfer lever. It is desirable, for accurate setting of the type, to give the type-positioning drivers a shorter arc of movement than the adding sectors receive when they move to position for setting up the number to be added.

As the parts are shown in Figs. 3 and 4 an accumulator wheel of a lower order is in the 9 position and its trigger 4| is directly under and almost in contact with the trigger-engaging arm 45 of the transfer-tripping lever 43 of the next higher denominational order. The rotation of the accumulator wheel of the lower denominational order one space for the purpose of adding 1 will cause its trigger 4| to swing the transfer-tripping lever on its pivot, causing its depending end 44 to contact the finger 5| of the catch 5| and thereby release the locking lug 5| from its cooperating transfer lever 3| and also move the inturned stop finger 5| from the path of the stop shoulder formed by notch 25 of its cooperating adding sector and place it in the path of the stop shoulder formed by the notch 25', lug 5| riding on surface 33 and holding the stop finger 5| in proper position. This will permit the spring 3| to move the transfer lever on its pivot until the resetting lug 34 contacts the bar 56 of the resetting bail. The driver 21 carrying gear 29 is stationary during this movement of the transfer lever. The movement of the transfer lever around its pivot will rotate the planetary gear 29 because the teeth 32 of that lever are in mesh with that gear. The rotation of the gear 29 in mesh with the pins 30 on the cooperating adding sector will move the adding sector one space in adding direction and correspondingly move the totalizer wheel in mesh therewith.

The movement of the adding sector one space in adding direction to accomplish the transfer changes the zone of adding movement one space. This transfer movement of the adding sector is in addition to the adding movement of said adding sector. However, the zone of the adding movement will be shifted one space to the rear or in adding direction. The movement of the adding sector one space for transfer does not affect or alter the position of the associated driver 21 and the printing instrumentalities connected to said driver, so that when the printing instrumentalities and the connected driver return to normal position in the adding operation the adding sector will have been moved the required number of spaces to accumulate in the totalizer the number set up for adding and recording.

- When a transfer lever has been released for transfer and its resetting lug 34 is in contact with the resetting bail bar 56 the transfer lever will be held stationary during the adding movement of its associated adding sector. The trans fer levers are held stationary at all times either by the locking lug 5 I engaging the locking notch 33 of the transfer lever, or by the resetting lug 34 engaging the resetting bail bar 56, except for the instant of transfer movement when catch 5| is tripped by the tripping lever.

As shown in Fig. 5 the adding sector has completed its adding movement after its transfer movement and the stop shoulder formed by the notch 25 is in engagement with the stop finger 5| of the associated catch 5!. The notch 25 permitted the adding sector to move the one extra space in adding direction which was necessary for the adding movement of the sector. For the next adding operation the resetting bail bar 56 will be moved downwardly to reset the transfer levers, and the resetting of these levers will move the adding sectors one space forward to their normal position, and the stop finger Bi of the catch ill will move into engagement with the stop shoulder formed by the notch 25 The locking lug 5t will engage the locking notch 33 of the transfer lever.

The total may be taken at any time after an adding operation by merely pressing the total key and then moving the operating handle in the usual manner for an adding operation. In taking a total it is necessary to disable the resetting bail and that is accomplished through the link connection between the total-taking lever and the resetting-bail-operating arm 59. In a total-taking operation the accumulator wheels and the adding sectors remain in mesh and the backward rotation, or return, of the accumulator wheels to zero will result in setting up, through the typepositioning means connected to the adding sectors, the correct total to be printed. It will be unnecessary to perform any special operation of any part of the mechanism in order to prepare the total-taking means for operation because, as previously described, the Zone of adding movement will have been moved one space in the direction of addition, which in no manner affects the positioning of the type for, printing a total. By reason of this change of zone of movement of the sector it is obvious that when totaling, a return of any totalizer to zero causes a movement of its cooperating sector a number of adding spaces equal to the numeral representing the accumulation upon said totalizer, there being no pick-up of the transfer movement necessary for correct total positioning of type as in said Patent No. 1,811,840 referred to herein. It is only necessary to operate the total-taking key before moving the handle for the operation of the mechanism.

What I claim is:

1. In a calculating machine of the class described having pivoted oscillating adding sector concentric with its axis, an oscillating driver for the adding sector pivotally mounted co-axially therewith, a planetary gear carried by the driver in mesh with the teeth of the transfer lever, gear teeth on the adding sector meshing with the teeth on the planetary gear, a pivoted catch holding the transfer lever against movement and adapted to be engaged by the transfer tripping means of the accumulator unit of the next lower order to release said catch from the transfer lever, means to move said transfer lever on its pivot when released from the said catch and thereby to move the adding sector one space in adding direction, the adding sector being formed with two stop shoulders, one of said shoulders being adapted to engage the said pivoted catch at the limit of the normal adding movement of the sector and the other stop shoulder being adapted to engage said catch at the limit of the additional one space adding movement of the sector when actuated for transfer, and means to hold the catch in position to be engaged by the last mentioned shoulder after it has been released from the transfer lever.

2. In a calculating machine of the class described, the combination of a transfer lever pivoted axially in association with a pivoted adding sector and formed with gear teeth in an are concentric with its axis, an oscillating driver for the adding sector pivotally mounted co-axially there with, a planetary gear carried by the driver in mesh with the teeth of the transfer lever, gear teeth on the adding sector meshing with the teeth on the planetarygear, a pivoted catch holding the transfer lever against movement and adapted to be engaged by the transfer tripping means of the accumulator unit of the next lower order to release said catch from the transfer lever, means to move said transfer lever on its pivot when released from the said catch and thereby to move the adding sector one space in adding direction, the adding sector being formed with two stop shoulders, one of said shoulders being adapted to engage the said pivoted catch at the limit of the normal adding movement of the sector and the other stop shoulder being adapted to engage said catch at the limit of the additional one space adding movement of the sector when actuated for transfer, and means formed on the transfer lever adapted to be engaged by the catch to hold the catch in position to be engaged by the shoulder on the adding sector after the said catch has been released from the transfer lever.

3. In a calculating machine of the class described having pivoted oscillating adding sector racks and accumulator registering units consisting of actuating pinions and transfer tripping means associated with the adding racks in denominational order and a main oscillating operating cam, the combination of an oscillating driver, means connecting said driver to an oscillating adding sector to impart to said sector a normal adding movement in an arc in excess of the arc of movement of the driver, said means comprising a planetary gear rotatably mounted on the driver and in engagement with gear teeth on the adding sector, an oscillatable transfer lever axially mounted with reference to said sector and having fulcrum gear teeth concentric with its axis and in engagement with the planetary gear, a movable stop for retaining the transfer lever in normal operating position and adapted to be moved out of engagement with said transfer lever by the transfer tripping means of the next lower order, a spring for moving said transfer lever when released from said retaining stop and thereby to move the adding sector one space in adding direction, means operated by the main operating cam for re-positioning said transfer lever for engagement with the movable stop after the movement of said transfer lever by said spring, a total lever, and means connected thereto for disabling the transfer lever re-positioning means by the actuation of said total lever.

4. In a calculating machine of the class described having pivoted oscillating adding sector racks and accumulator registering units consisting of actuating pinions and transfer tripping means associated with the adding racks in denominational order, the combination of a transfer lever pivoted axially in association with an adding sector and formed with gear teeth in an arc concentric with its axis, an oscillating driver for the adding sector pivotally mounted co-axially therewith, a planetary gear carried by the driver in mesh with the teeth of the transfer lever, gear teeth on the adding sector meshing with the teeth on the planetary gear, a pivoted catch holding the transfer lever against movement and adapted to be engaged by the transfer tripping means of the accumulator unit of the next lower order to release said catch from the transfer lever, and means to move said transfer lever on its pivot when released from the said catch and thereby to move the adding sector one space in adding direction, the adding sector being formed with two stop shoulders, one of said shoulders being adapted to engage the said pivoted catch at the limit of the normal adding movement of the sector and the other stop shoulder being adapted to engage said catch at the limit of the additional one space adding movement of the sector when actuated for transfer.

5. In a calculating machine of the class described having pivoted oscillating adding sector racks and accumulator registering units consisting of actuating pinions and transfer tripping means associated with the adding racks in denominational order, the combination of a transfer lever pivoted axially in association with an adding sector and formed with gear teeth in an arc concentric with its axis, an oscillating driver for the adding sector pivotally mounted coaxial- 1y therewith and adapted to be connected to cooperating type-positioning means, a planetary gear carried by said driver in mesh with the teeth of the transfer lever, gear teeth on the adding sector meshing with teeth on the planetary gear, a pivoted catch normally holding the transfer lever against movement and forming a stop to limit the adding movement of the adding sector and adapted to be engaged by the transfer tripping means of the accumulator unit of the next lower order to release said catch from the transfer lever, and means to move said transfer lever when released from its catch and thereby move the adding sector one space in adding direction for the transfer of tens, the adding sector being formed with two stop shoulders, one of said shoulders being adapted to engage the said pivoted stop at the limit of the normal adding movement of the sector and the other stop shoulder being adapted to engage said pivoted stop at the limit of the additional one space adding movement of the sector when actuated for transfer.

6. In a calculating machine of the class described having pivoted oscillating adding sector racks, the combination of a transfer lever pivoted axially in association with an adding sector and formed with gear teeth in an arc concentric 'with its axis, an oscillating driver for the adding sector pivotally mounted co-axially with the sector and adapted to be connected to co-operating type-positioning means, a planetary gear carried 4 by said driver in mesh with the teeth of the transfer lever, gear teeth on the adding sector meshing with the teeth of the planetary gear, a pivoted catch normally holding the transfer lever against movement and formed with a trip finger adapted to be engaged by the transfer tripping-' means of the accumulator unit of the next lower order to release said catch from the transfer lever, and a spring to move the transfer lever when released from its associated catch and thereby move the adding sector one space in adding direction for the transfer of tens.

7. In a calculating machine of the class described having pivoted oscillating adding sector racks and accumulator registering units consisting of actuating pinions and transfer tripping means associated with the adding racks in denominational order, the combination of a transfer lever pivoted axially in association with an adding sector and formed with gear teeth in an arc concentric with its axis, an oscillating driver i for the adding sector pivotally mounted co-axially therewith, a planetary gear carried by said driver in mesh with the teeth of the transfer lever, gear teeth on the adding sector meshing with teeth on the planetary gear, a pivoted catch normally holding the transfer lever against movement and adapted to be engaged by the transfer tripping means of the accumulator unit of the next lower order to release said catch from the transfer lever, and means to move said transfer lever when released from its catch and thereby move the adding sector one space in adding direction for the transfer of tens.

8. In a calculating machine wherein an accumulator registering unit having an actuating pinion and a transfer tripping means are associated with an oscillating adding sector rack, the combination of an oscillating driver for an adding sector adapted to be connected to a type positioning means, oscillating means connecting the driver to the adding sector to impart to the sector its movement, means connecting the said oscillating means to the adding sector, spring actuated means adapted to be released by the transfer tripping means of the accumulator unit of the next lower order and engaging the oscillating means connecting the driver to the adding sector to move the said adding sector independently of its driver one space in adding direction for the transfer of tens.

9. In a calculating machine of the class described having pivoted oscillating adding sector racks and accumulator registering units consisting of actuating pinions and transfer tripping means associated with the adding racks in denominational order, the combination of a transfer lever pivoted axially with an adding sector, oscillating driver for the said adding sector pivotally mounted co-axially therewith and adapted to be connected to co-operating type-positioning means, gear teeth formed on the transfer lever concentric with the pivot thereof, an oscillating pinion carried by the driver with its teeth in mesh with the teeth formed on the transfer lever, gear teeth formed on the adding sector and adapted to be engaged by the teeth of the oscillating pinion, a catch normally holding the transfer lever against movement and adapted to be engaged by-the transfer tripping means of the accumulator unit of the next lower order to release said catch from the transfer lever, means operating upon the release of the transfer lever to move the adding sector one space in adding direction for the transfer of tens, and stop means adapted to engage and stop the adding sector when said sector has moved one space in adding direction for the transfer of tens.

10. In a calculating machine of the class described having pivoted oscillating adding sector racks, the combination of an oscillating driver for actuating an adding sector through means imparting to the latter a normal adding movement in excess of the arc of movement of said oscillating driver, said means comprising a planetary gear rotatably mounted on the driver, gear teeth on the adding sector concentric with the axis of movement of said driver and in engagement with the teeth of said planetary gear, an oscillatable transfer lever axially mounted with reference to said adding sector and having fulcrumed gear teeth concentric with its axis and in engagement with the planetary gear, a movable stop for retaining the transfer lever stationary in normal operating position, spring means for moving said transfer lever when said stop is released, means adapted to be operated by the transfer tripping means of the accumulator unit of the next lower order to release said stop to permit the transfer lever to actuate the planetary gear to move the adding sector one space in adding direction for the transfer of tens, and stop means adapted to engage and stop the adding sector when said sector has moved one space in adding direction for the transfer of tens.

11. In a calculating machine of the class described wherein an accumulator registering unit having an actuating pinion and a transfer tripping means are associated with an oscillating adding sector rack, the combination of an oscillating driver for the adding sector, an oscillating pinion carried by the driver, gear teeth on the adding sector adapted to mesh with the teeth of the said oscillating pinion and connecting the driver to the adding sector to impart to the sector its adding movement, a spring actuated transfer lever formed with teeth engaging with the teeth of said pinion, a latch holding said transfer lever stationary during adding movement of said sector and adapted to be released by the transfer tripping means of the accumulator unit of the next lower order to permit the transfer lever to actuate said pinion to move the said adding sector one space in adding direction for the transfer of tens, and stop means adapted to engage and stop the adding sector when said sector has moved one space in adding direction for the transfer of tens.

GLENN J. BARRETT.