US2847163A - ellerbeck - Google Patents

Description

Aug. 12, 1958 c, ELLERBECK 2,847,163

CENTRALIZER FOR OUTBOARD TENS-TRANSFER MECHANISM Filed July 27, 1953 2 Sheets-Sheet 1 Aug. 12, 1958 G. c. ELLERBECK 2,847,163-

CENTRALIZER FOR OUTBOARD TENS-TRANSFER MECHANISM 2 Sheets-Sheet 2 Filed July 2'7, 1953 2,847,163 Patented Aug. 12, 1958 file Grant C. Ellerbeclr, ban Leandra, Calili, assignor to Friden, Inc., a corporation of California Application July 27, 1953, Serial No. 370,337

11 Claims. (Cl. 235 139) This invention relates to an improvement for an auxiliary tens-transfer mechanism of the gear train type, such as illustrated by the patent to Machado et al., No. 2,597,507, issued May 20, 1952, and entitled Auxiliary Tens-Transfer Control Mechanism.

A primary object of the present invention is to provide an automatic centralizing device for the outboard orders of an auxiliary tens'transfer mechanism of the type described in said patent, thereby avoiding errors due to accumulated inaccuracies in the gear train resulting in overthrow or loss of a carry in the outboard orders.

Another object of the present invention is to provide a centralizing mechanism for the outboard orders of the register dials which is operative only when a transfer into the outboard orders occurs.

Another object of the present invention is to provide an auxiliary, or full, tens-transfer mechanism of the gear train type, such as illustrated in the aforementioned patent, in which the very exact tolerances in the gear train required in that form of transfer may be avoided.

Another object of the invention is to provide an outboard order dial centralizing mechanism utilizing the sensing slides now used for automatically aligning the dividend and the divisor in the Friden fully automatic calculating machine commercially available, described in the patent of Anthony B. Machado et aL, No. 2,653,765, issued September 29, 195 3, and entitled Dividend Aligning Mechanism.

It is conventional in commercial calculating machines to utilize a keyboard having a capacity of eight or ten orders and an accumulator register having about twenty orders for the accumulation of values. In some commercial machines the respective orders of the accumulator are interconnected by planetary, or crawl-type, tenstransfer mechanisms which effect a full carry throughout the width of the accumulator. Other calculators, such as the commercial machine utilizing the gear train type of auxiliary transfer illustrated in the above-mentioned Patent No. 2,597,507, have cyclically operable, power driven tens-transfer mechanisms on the inboard orders of the machine. in such machines, the passage of an inboard register dial between the O and 9 positions, either additively or subtractively, sets a transfer gear in the next higher order of the machine in line with a tenstransfer actuator, the latter being power driven in timed relation to the actuating mechanism. Such a direct, power driven transfer terminates adjacent the highest order of the keyboard; in the Friden machine with which the above-mentioned patents are related, in the 12th order for a ten-order keyboard. In the auxiliary tenstransfer Patent No. 2,597,507 above mentioned, the higher orders of the register are provided with an auxiliary tens-transfer mechanism which includes a single tooth gear on each of the accumulator dial shafts, which gear engages an idler as the dial passes between the 0 and 9 positions. The idler gear in turn is meshable with a gear on the next higher order dial shaft. Thus when the dial of the lower order passes between the 0 and 9" position, the next higher dial is moved a single step in the same direction. The train of gears is continued throughout the outboard orders of the register, i. e., from the 13th to the 20th orders in a twenty-order register. It is obvious that a train of gearing of this extent must be very accurately manufactured and very closely adjusted in order to insure the complete carry order of a unit from the 12th order of the register to the 20th order thereof, and the problem becomes worse with wear on the various portions of the gear train. I have found that the extreme accuracy required in the full carry, or auxiliary tens-transfer, mechanism of the said patent can be avoided, and all of the gears and other parts associated therewith can be manufactured on the basis of ordinary manufacturing tolerances, if poweroperated means is provided for positively centralizing a dial approximately half way between the 12th and 20th order in a full-cycle position, every time the auxiliary tens-transfer mechanism is operated. Thus, my invention relates to an improvement in the transfer mechanism of the auxiliary tens-transfer Patent No. 2,597,507 above mentioned utilizing an automatic power operated centralizing mechanism for the 16th or 17th order dials.

l have found that gear trains manufactured according to usual manufacturing standards will be effective to effect a tens-transfer for four orders, without losing it or without overthrowing. if that higher order dial is then positively centralized accurately in the full-cycle position, the highest order dials are also held in accurate registration. Thus, a primary object of my invention is to provide an improved centralizing device for an interme diate outboard order of the register.

The present invention is concerned with these and other objects which will become apparent from the following description of the preferred embodiment of the invention, which is shown in the accompanying drawings, in which: 1

Fig. l is a plan view of the outboard orders of the register of a conventional calculating machine embodying the Machado patents above mentioned, and particularly Patent No. 2,597,507, with my invention applied to the 17th order thereof.

Fig. 2 is a side view of the mechanism of my invention, such as applied to the 17th order of Fig. 1, such as taken along the plane indicated by the line 2-2 of Fig. 1.

Fig. 3 is a left side view of the operating mechanism of my invention, which preferably is mounted on the left side control plate, and shows a portion of the auxiliary transfer mechanism of said Machado Patent, No. 2,597,507.

My invention is shown, for purposes of illustration, as embodied in a calculating machine of the kind described in the patent to Friden No. 2,229,889, as modified by the auxiliary tens-transfer mechanism of the patent to Machado et al., No. 2,597,507, and the division aligner mechanism of Machado et al. No. 2,653,765. The mechanism of the aforesaid patents are now well known and will not be described except insofar as is necessary for a full and complete understanding of my invention.

The machines of said patents include a shiftable carriage 10 which comprises a main frame bar 11 and a front carriage rail 12 interconnected by a suitable spacing plate 13. The accumulator register is mounted in the carriage frame bar 11 and includes substantially vertical accumulator shafts 15 rotatabiy journalled therein. An accu mulator gear 16 is atfixed to the lower end of the dial shaft 15 (see Fig. 3) and an accumulator dial 17 (Figs. 1 and 2) is mounted on the upper end of the shaft. The accumulator dial and shaft is driven by plus or minus gears carried by a digitation control spool (Fig. 3) that is slidably but nonrotatably mounted on a square 3'5 shaft 19, the square shaft being given increments of ro tation as described in said patents. Each of the dial shafts is provided with a detent in order to hold it in proper ordinal position. This detent can be of any suitable construction, such as the star wheel 26 rigidly mounted on the shafts 15 and the cooperating spring pressed ball 27 engaging the same.

Each dial shaft 15 is provided with a single tooth transfer cam 29 mounted on the lower end thereof, adjacent the accumulator gear 16. A transfer lever 21 is rotatably mounted on the lower face of the frame bar 11, and is rocked by the passage of the cam 24) between the O and 9 positions, in either direction of rotation. The transfer lever 21 is provided with a downwardly extending ear 2?, which lies between a pair of flanges 23 mounted on the hub of a transfer gear 24', which is also slidably but non-rotatably mounted on the square shaft 19. Thus, when the accumulator dial 17 and shaft 15 passes between the and 9 positions, in either direction of rotation, the transfer lever 21 is rocked to translate the transfer gear 24 and associated flanges 23 forwardly on the square shaft 19. In this position the inboard transfer gears 24 are engaged by a single tooth transfer actuator gear (not shown), after which the transfer gears are returned to their normal position. This main transfer mechanism, being operated through the square shafts 19, extends only through the inboard orders of the machine, which in the machine of said patents comprises a ten-order keyboard and ordinally associated actuators, and an additional actuator shaft 19 serving the llth and 12th orders of the register. These transfer mechanisms can be referred to as the inboard, or main, transfer mechanisms and are effective throughout the orders of the carriage aligned with the ten orders of the actuators and two additional orders.

In order to extend the transferring of units from one order of the register to the next higher order thereof, in the outboard orders (higher than the 12th in the above-mentioned machine) an auxiliary transfer mechanism is provided, as shown and described in the Machado auxiliary tens-transfer Patent No. 2,597,507 above mentioned. This mechanism briefiy comprises a single tooth transfer gear rigidly mounted on the dial shaft 15 in the 12th order of the register, and a unitary transfer tootn and gear assembly for the 13th and all higher order dial shafts 15'. These assemblies include the single tooth gear 4d and a IO-tooth gear 43 formed on a single hub which is affixed to the dial shaft 15. As explained in said last-mentioned patent, in order to conserve space, the gear 43 is placed above the single tooth gear 40 in alternate orders and in the others the single tooth gear is placed above the lO-tooth gear 43. The single tooth gears are adapted to mesh with the teeth of a lO-tooth coupling gear 41 mounted on a spindle 42 mounted in the forward side of the carriage frame bar. Thus, whenever the dial passes between the 9 and 0 positions the single tooth of the single tooth gear 4t meshes with the teeth of coupling gear 41, giving it a single increment of rotation. The coupling gear 41 in turn meshes with the gear 43 on the next higher order dial shaft 15, whereby rotation of the coupling gear 4-1 efiects a similar rotation of the next higher order dial shaft. Thus, a transfer between one order and the next is accomplished through the single tooth gear 4t), coupling gear 41 and driven gear on the next higher order. It is explained in said auxiliary tens-transfer Patent No. 2,597,507 that the gears if. and 43 are of sufiicient width to enable the gear to mesh with the driving gear it in one order and the driven gear 33 in the next higher order. Normally, the gear 4-1 is biased into the plane of both the driven and the driving gears of the register, but are held in a disengaged position by means of a comb 44 in all operations of the machine except where operation of the extending shoulder 56.

auxiliary tens-transfer mechanism is necessary. It is explained in said auxiliary tens-transfer Patent No. 2,597,507 that the bail 44 is rocked to a disabling position shown by a rail as the carriage is shifted inboard, so that there can be no interference between the main transfer mechanism and the auxiliary transfer mechanism. It is also explained in said patent that the bail 44 normally is rocked to the disabling position shown by means of a cam, not shown herein but shown in Fig. 5 of said patent, on power shaft 70 operating through a follower linkage which blocks rocking of the comb 44 in all positions of the drive shaft except immediately before the end of a cycle. At this point the main transfer mechanism is timed to effect a tens-transfer into the highest order (conventionally the twelfth) of the main transfer mechanism, hereby the operation of the auxiliary transfer mechanism occurs only at the end of a cycle, when the main transfer mechanism is effecting a transfer into the highest order controlled by the main transfer mechanism. This controlled engagement is desirable in the commercial calculating machine, but as it is has no effect upon the operation of my invention, a description thereof will be omitted.

The auxiliary transfer mechanism of said Patent No. 2,597,507 is normally associated with a division aligning mechanism shown and described in said Machado Patent No. 2,653,765. Included in the division aligner mechanism are single notched cams (see Figs. 1 and 2) rigidly secured to each of the outboard order dial shafts 15. A sensing finger 51 having a nose 57 adapted to engage the notch 58 of the cam 50 is associated with each of the outboard order dials. These sensing slides 51 are provided with guide slots 52 which embrace pins, screws, or other projections 53 mounted on the spacing plate 13 and the forward ends are held against lateral displacement by extending through suitable slots (not shown) formed in the front carriage rail 12. The sensing fingers are moved into meshing engagement with the cams 50 by means of a cyclically operated sensing arm 54, the operation of which at the beginning of a carriage shift cycle controls the termination of the aligner mechanism as described in said aligner Patent No. 2,653,765. The sensing fingers 51 are provided with rightwardly extending shoulders 55 which abut against leftwardly extending shoulders 56-of the next lower order sensing finger, so that whenever any one of the sensing fingers engages the periphery of the cam 50, all of the sensing fingers 51 to the right thereof are held in their forward position. The centralizing mechanism of my invention in no way effects the operation of the aligner mechanism of said dividend-divisor aligner Patent No. 2,653,765, or the normal operation of the sensing fingers 51. However, I do utilize the sensing finger 51 of the 17th order to centralize the 17th order shaft and dial, by a power driven means, in order to centralize the register dials both above and below that order.

In the preferred form of my invention I provide a slightly modified sensing finger for the 17th order, although this could be placed in the 16th order just as well. The modified sensing finger of the 17th order comprises a sensing finger 151, generally of the same configuration as the sensing fingers 51 except that it does not have the rightwardly extending shoulder 55 or the leftwardly Immediately overlying the sensing finger 151, and in contact with it, is a second sensing finger 152 which is of the same shape as the sensing fingers 51 except that the nose 57 has been deleted. Both fingers 151 and 152 are nested in slots in the front carriage rail 12 and are provided with slots 52 which embrace an elongated stud 153 (as shown in Fig. 2). In all of the other sensing fingers the heads of the studs 53 are close to the upper face of the sensing fingers 51, in order to prevent vertical displacement of the sensing finger from engagement with the cam 50. However, in

the 17th order the head of the stud 153 lies a considerable distance above the upper sensing finger 152 so that both fingers may be rocked in a vertical plane. The upper sensing finger 152 is provided with the shoulders 55 and 56, as in the conventional sensing fingers 51. However, the cooperating shoulders on the adjacent sensing slides are provided with ears so as to engage the elevated shoulders on the upper slide 152, such as ear 155 on the rightwardly extending shoulder 55 of the next higher order and ear 156 on the leftwardly extending shoulder 56 of the next lower order. Thus, the shoulders of the upper sensing slide 152 cooperate with the shoulders of the adjacent sensing fingers, and is controlled by the sensing of a nonzero condition to the left thereof although the lower sensing finger 151 is free to move forwardly without regard to the adjacent sensing fingers. It will be noted, particularly in Fig. 2 that the sensing fingers 51 and 151 and 152 are provided with-a sloping face 60 which is necessarily formed in the sensing fingers so that they may lie upon the spacing plate 13 and pass through the slots in the intermediate section of the front rail 12. As both sensing fingers 151 and 152 are provided with these sloping shoulders 60, it is obvious that rearward motion of the upper sensing finger 152, as by rearward movement of the sensing finger 51 in the 16th order when a zero condition exists in all higher orders, will be operative to also move the sensing finger 151 rearwardly to sense the zero condition of the cam 50 in that order.

' The sensing finger 151 carries a downwardly extending pin 160 (see particularly in Fig. 2). A tension spring 161 tensioned between the lower end of the pin 160 and a spring seat formed in the front carriage rail 12 biases the pin forwardly, and the sensing finger 151 downwardly (counter-clockwise in Fig. 2). In this position the sensing finger 151 will engage the cam 50. Associated with the pin 160 is the nose 162 of a bail 163 which is pivotally supported on a pair of brackets 164 spanning the separator plate 13 and the front carriage rail 12, by any suitable means such as rivets 165. Rocking of the bail, by a means to be presently described, will be effective to cause the nose 162 to rock the pin 160 and sensing finger 151 (clockwise in Fig. 2), whereby the nose of the sensing finger will lie in the plane of a centralizing wheel 166 rigidly mounted on the 17th order dial shaft 15, immediately above the cam 50. The rockl ing of the bail 160 is also operative to force the sensing finger 151 rearwardly into engagement with the centralizing wheel 1166, even though movement of the upper sensing finger 152 is blocked as by means of the car 155 on the next higher order sensing finger being blocked against operation. As shown in Fig. 1, the peripheral ends of the teeth on the centralizing wheel 166 are angularly disposed to complement the sharply pointed nose of the sensing finger 151, so that if the dial shaft and wheel are displaced angularly up to 18 from a true posir tion the force of the movement of the sensing finger 151 is suflicient to cam the wheel 166 and the other parts mounted on the shaft around to the true angular position, thus centralizing this dial shaft and also the dial shafts of the higher and lower adjacent orders. It can be noted at this point that the translation of the sensing finger 151 is very brief but forceful, and takes place while the auxiliary transfer mechanism is inoperative condition so that the positive centralizing of the one intermediate dial is sufficient to centralize all of the others of the outboard orders that are connected thereto at the time, such as through the gear train includingsingle tooth gear :0 and gears 41 and 43. It is important that this positive centralizing be effected at the time the auxiliary transfer mechanism is in operative position (the three gears are in the same plane), for it can be effective only when the various dials are interconnected through the auxiliary transfer gearing. It is obvious that this centralizing is an idle operation when the transfer does not extend so far, but it has been found to be very 8 effective to prevent loss of a transfer or overthrow in the higher order dials when the gears are manufactured with conventional tolerances.

The bail 163 is rocked immediately before the termination of a cycle, when a transfer becomes effective in any of the outboard orders, from the main drive of the machine. The mechanism for rocking the bail is shown particularly in Fig. 3. In its preferred form this mechanism comprises a sharp-nosed cam 71 mounted on the left end of the drive shaft 70, immediately adjacent the left side auxiliary frame plate 35. A cam follower roller 72 is mounted on a bellcrank 73, and is adapted for cooperation with the cam 71 when a transfer takes place in the outboard orders. The bellcrank is mounted upon a long stud shaft, or spindle, 74, the bellcrank being biased toward the right (toward the frame plate 35) by a compression spring 75 seated between the hub of the bellcrank and a collar 76 on the outer end of the spindle 74. Normally the roller 72 lies to the right of the plane of the cam 71, but when projected to the left against the bias of spring 75 will lie in the plane of the cam 71. The parts are shown in the full-cycle position, the drive shaft and cam rotating in a counter-clockwise direction. It is thus apparent that immediately before the end of a machine cycle the sharp nose of the cam '71 will engage the roller 72 (assuming the bellcrank has been projected to the left) to rock the bellcrank 73 sharply.

The means for shifting the bellcrank 73 to the left against the force of spring 75 will now be described. A lever arm 80 is pivotally mounted on the left frame plate 35, adjacent the tens-transfer gear 24 in the high est inboard order of the machine. In Fig. 3 the arm 80 is shown as pivotally mounted on a screw stud 81. The arm 80 is provided with a stud 82 riveted on the upper end thereof, which stud lies between the flanges 23 on the transfer gear 24 of the highest inboard order of the machine. Thus, the operation of the transfer lever 21, by the transfer cam 20 in the next lower order, will move the gear 24 forwardly to transfer position, and simultaneously therewith rocks the arm 80 (clockwise in Fig. 3). The arm 80 is connected by means of a link 83 to a cam arm 84, likewise pivotally mounted on a frame plate 35, as by means of screw stud 85. The lower end of the cam arm 80 is provided with a laterally extending cam face 86 normally lying immediately behind the vertical arm of the bellcrank '73. Thus, when the arm 80 is rocked by the tens-transfer in the highest inboard order, the cam arm 84 is also rocked, whereupon the cam face 86 engages the vertical arm of bellcrank 73, pushing the bellcrank to the left so that the follower roller 72 lies in the plane of cam 71. Such operation of the camming linkage shown and described takes place close to the end of a machine cycle, as the transfer in the highest inboard order takes place at this time. Thus, the follower roller will be projected into the path of the nose on cam 71 only immediately before the rise of the cam' approaches the position of the roller 72. Thereupon, and immediately before the end of the cycle, the bellcrank arm 73 is rocked sharply (counter-clockwise in Fig. 3). When the tens-transfer gear 24 is returned to its normally inactive position by conventional means not shown, the cam arm 84 is returned to the normal position shown and the spring 75 returns the bellcrank 73 to its normally inoperative position.

The upper arm of the bellcrank 73 is provided with a slot 77 which embraces a pin 9 rigidly mounted on a bifurcated slide 91. The slide @1 is bifurcated, as at 92, to embrace a pin 93 rigidly mounted on an actuating slide lift). A relatively strong spring 94 is tensioned between the pins 99 and 93 so that reciprocation of the bifurcated slide 91 (which must reciprocate cyclically with the oscillation of bellcrank 73) is normally transferred to the actuating slide 100 on which the pin 93 is mounted. However, if some part blocks operation of the slide 109,

7 the spring 94 can yield to prevent-breakage of the machine.

The actuating slide l'ttltl is provided with a pair of slots 101 which embrace the stud 85 previously mentioned and a second stud 102 riveted, or otherwise rigidly secured, to the frame plate 35. Normally this actuatng slide 109 will reciprocate synchronously with the bifurcated slide 91, due to the force of spring 94. Normally the actuating slide 1% is biased to the forward position shown in Fig. 3 by means of a relatively light spring 193 tensiened between the stud and the stud 194 on the actuating slide 100. The actuating slide 1% is provided with a rearward extension terminating in a shoulder 105 normally lying adjacent the forward edge of the bail 163. Thus, rotation of the cam 71, when a transfer is conditioned to occur from the inboard to the outboard orders, is effective to rock bellcrank 73 which, in turn, reciprocates slides 91 and in unison to cause the shoulder 105 to engage the bail 163, rocking the latter (clockwise in Figs. 2 and 3).

It will be noted that the bail 163 extends from adjacent the 12th order of the register to the 17th order of the register, so as to be operated whenever the 13th to 17th orders, inclusive, lie outboard-of the machine. However, the auxiliary centralizing device of my invention is unnecessary when the 17th order of the machine lies inboard, for in that event the conventional auxiliary transfer mechanism of the Machado Patent No. 2,597,507 above mentioned is sufficient to carry a transfer accurately throughout the remaining length of the register, regardless of tolerances used in construction of the parts.

The operation of the mechanism of my invention is believed obvious from the previous description. However, it can be briefly summarized by pointing out that when the transfer mechanism of the next to the highest inboard order is conditioned for a transfer into the highest inboard order (there being no digitation in these orders of the machine shown) the setting of the transfer gear 24 in the 12th, or highest, order is also effective to rock the cam arm 34 (counter-clockwise in Fig. 3). The rocking of the arm $4 cams the bellcrank 73 outwardly (to the left), whereupon the follower roller 72 lies in the plane of the sharp-nosed cam ll-this translation of the bellcrank 73 to the left taking place shortly before the end of a cycle. The nose of the cam 71 immediately contacts the roller 72, rocking the bellcrank 73 and reciprocating the bifurcated link 91 and actuating slide 100 in all normal conditions. However, if something blocks operation of the bail 163, the spring 94 can yield to avoid breakage of the parts. tuating slide ltlil causes the shoulder 105 thereof to engage and rock the bail 163. Thus, rocking of the bail will take place whenever any one of the first five outboard orders (orders 13 to 17 in the embodiment shown) lie outboard of the machine, but is ineffective to rock the bail when all of these orders are inboard. The rocking of the bail 163 causes the nose 162 to engage pin 16%, rocking it and the'sensing finger 151 (counterclockwise in Fig. 2) so that the nose of the sensing finger lies in the plane of the centralizing wheel 166, and then pushes the slide rearwardly so as to forcibly engage the nose of the sensing finger in the valleys between the teeth on the centralizing wheel 166. By this means the 17th order dial assembly is positively centralized in a correct angular position whenever that order dial lies outboard of tie machine. As mentioned above, the centralizing of this dial is effective to properly centralize the dials both above and below it so as to avoid loss of a carry, or to avoid overthrow in any part of the auxiliary transfer mechanism. Parenthetically, it can be noted that the operation of the sensing arm 54 of the division aligner mechanism, previously mentioned, will not interfere in any way with the operation of the finger 151 in cen tralizing the outboard orders during a tens-transfer operation. The sensing finger 54 is operated under the con- The translation of the act trol of a positively operated cam to cause operation of the sensing arm at the beginning of a carriage shift cycle, while the centralizing mechanism of the present invention is operated only at the end of a cycle in which a tenstransfer is made into the outboard orders. Therefore, the-two operations of the sensing finger 151 occur at different portions of entirely different operating cycles so that no conflictis possible between them (see Patent No. 2,653,765, column 21, lines 14 to 43).

it will be understood that the machine shown and described herein is a preferred embodiment of my invention and that the mechanisms shown are capable of considerable modification by persons skilled in the art without departing from the spirit and scope of this invention.

1 claim:

1 in calculating machine having an ordinally ar- :tualing mechanism, a motor for driving said mechanism,- a carriage shiftable with respect to actuating mechanism, a plurality of ordinully r 'iged re ister wheels in said can 2, certain of said wheels lying inboard of said actuating mechanism and others of said wheels lying outboard thereof, a main transfer mechanism adjacent said actuating mechanism for effecting transfers in the register wheels cooperating with said actuating mechanism, and an auxiliary transfer mechanism for each of the re ster wheels lying outboard when the carriage in its end position and including normally disenga ed gearing positionable to interconnect said outb d reg" ter wheels for effecting tran therein and means open-.ed by the highest order regis. wheel operated by said main transfer mechanism for operating said auxiliary transfer mechanism, a motoroperated means for centralizing an outboard predetermined intermediate one of said register associated with said auxiliary transfer mechanism during operation of said auxiliary transfer mechanism.

2. In a calculating machine having ordinally arranged and differentially operable drive means, a shiftable carriage, a plurality of ordinally arranged register wheels in said carriage, a lower order group of said wheels lying inboard of said drive means and a higher order group of said wheels lying outboard thereof when the carriage is in its end position, a main transfer mechanism for effecting tens-transfers in the register wheels aligned with said drive means, and an auxiliary transfer mechanism mounted on said carriage for effecting tens-transfers in the outboard higher order group of register Wheels, the combination which comprises a member mounted in said carriage for centralizing an intermediate one of said higher order group of register Wheels, a motor-operated means for operating said centralizing member, means for rendering said motoroperated means ineffective whenever said member is shifted into alignment with said drive means, and means operated by the highest order of said main transfer mechanism for conditioning said motoroperated means for operation.

3. In combination Withfl calculating machine having a frame, a motor, a shiftable carriage, a plurality of ordinally arranged register wheels in said carriage, a lower order group of said wheels lying inboard of said frame and a higher order group of said wheels lying outboard thereof when the carriage is in its end position, an ordinally arranged main ransfer mechanism for effecting transfers in the register .vheels from time to time lying inboard of said frame and an auxiliary transfer mechanism mounted on said carriage for effecting transfers in the outboard higher order register wheels, said last-named means including a transfer tooth connected for move ment with the highest order of the lower order group of wheels and each of the higher order wheels, a transfer gear on each of the higher order wheels, and a series of coupling gears for operatively connecting each transfer tooth with the transfer gear in the next higher order of the register so as to enable the transfer of a unit from one order to the next to be effected throughout ranged register Wheels in said carriage,.a lower order group of said wheels lyinginboard of said drive means and a higher order group of said wheels lying outboard thereof when the carriage is in its end position, a motoroperated main transfer mechanism for effecting transfers in the register wheels aligned with said drive means, and an auxiliary transfer mechanism mounted on said carriage for effecting transfers in the higher order register wheels, the combination which comprises a toothed centralizing wheel on a predetermined intermediate one of the higher order Wheels, a reciprocable centralizing finger adapted to engage the valleys between the teeth of said centralizing wheel, and an outboard motor-operated means for reciprocating said finger.

5. In a calculating machine having a frame, an ordinally arranged and differentially operable drive means mounted in said frame, a motor for driving said drive means, a shiftable carriage, a plurality of ordinally arranged register wheels in said carriage, certain of said wheels lying inboard of said drive means and others of said wheels lying outboard thereof, motor-operated main tens-transfer mechanisms for effecting transfers in the inboard register wheels, and an auxiliary tens-transfer mechanism mounted on said carriage for chatting transfers in the register wheels outboard of said drive means when the carriage is in its end position, the combination which comprises a centralizing wheel on a predetermined one of the wheels associated with the auxiliary transfer mechanism, a reciprocable centralizing finger adapted to engage the said centralizing wheel, a normally inoperative motor-operated means for reciprocating said finger, and means operated by the main tens-transfer mechanism associated with the highest inboard order wheel for controlling operation of said motor-operated means.

6. In a calculating machine having ordinally arranged and differentially operable drive means, a motor for operating said drive means, a shiftable carriage, a phzrality of ordinally arranged register wheels in said carriage, the lower orders of said wheels lying inboard of said drive means and the higher orders of said wheels lying ontboard thereof when the carriage is in it main transfer mechanisms for effecting I register wheels lying inboard of said d i an auxiliary transfer mechanism mounted on d riage for effecting transfers in the higher orde wheels, said last-named means including a lTIlllSfLi tooth connected for movement with the highest order of the lower order wheels and each of the higher order wheels, a transfer gear on each of the higher order wheels, and a series of coupling gears for operatively connecting each transfer tooth with the transfer gear in the next higher order of the register so as to enable the transfer of a unit from one order to the next to be effected throughout the entire array of register wheels, the com: bination which comprises a toothed centralizing wheel on an intermediate higher order wheel, a reciprocable centralizing finger adapted to engage the valleys between the teeth of said centralizing wheel, and an outboard motor-operated means for reciprocating said finger substantially simultaneously with operation of the transfer tooth of the then highest inboard order wheel.

7. In a calculating machine having a frame, an ordinally arranged and differentially operable drive means mounted in said frame, a motor for operating said drive means, a shiftable carriage, a plurality of ordinally arranged register wheels in said carriage, the lower orders of said wheels lying inboard of said drive means and the higher orders of said wheels lying outboard thereof when the carriage is in ,its end position, a motor-driven main transfer mechanism for effecting transfers in the register wheels lying inboard of said drive means, and an auxiliary transfer mechanism mounted on said carriage for effecting transfers in the higher order register wheels, said last-named means including a transfer tooth connected for movement with the highest order of the lower order wheels and each of the higher order wheels, a transfer gear on each of the higher order wheels, and a series of coupling gears for operatively connecting each transfer tooth with the transfer gear in the next higher order of the register so as to enable the transfer of a unit from one order to the next to be effected throughout the entire array of register wheels; a centralizing gear on an intermediate one of said higher order wheels, a reciprocable centralizing finger having a nose adapted to engage said gear, a normally inoperative motor-driven means for reciprocating said finger so long as the wheel with which such finger is associated lies outboard of said drive means, and means controlled by the main transfer mechanism for operating said power-operated means.

8. In a calculating machine having a frame, an ordinally arranged actuating mechanism mounted in said frame, a motor for operating said actuating mechanism, a shiftable carriage, a plurality of ordinally arranged register 'wheels in said carriage, the lower orders of said wheels lying inboard of said actuating mechanism and the higher orders of said wheels lying outboard thereof when the carriage is in its end position, motor-operated main transfer mechanisms for effecting transfers in the inboard register wheels, and an auxiliary transfer mechanism mounted on said carriage for effecting transfers in the higher order group of register wheels said auxiliary transfer mechanism including a transfer tooth connected for movement with the highest order of the lower order wheels and each of the higher order wheels, a transfer gear on each of the higher order wheels, and a series of coupling gears for operatively connecting each transfer tooth with the transfer gear in the next higher order of the register so as to enable the transfer of a unit from one order to the next to be effected throughout the entire array of register wheels, the combination which comprises a centralizing gear on a preselected one of said higher order wheels, a reciprocable centralizing finger having a nose adapted to engage the interdental spaces of said gear, a motor-operated and cyclically operable cam on said frame, a cam follower normally disengaged from said cam, interponent means on said carriage operated by said follower and operating the finger, and means operated by the main transfer mechanisms for causing said follower to engage said cam.

9. In a calculating machine having an ordinally arranged actuating mechanism, driving means for operating said actuating mechanism, a register having a plurality of ordinally arranged register wheels shiftable with respect to said actuating mechanism, main transfer means cooperating with said actuating mechanism and severally operated by said drive means for effecting transfers in the register Wheels aligned therewith, an auxiliarytransfer mechanism cooperating with the register wheels not aligned with the main transfer means when the register is in an end position for effecting transfers in the register wheels not aligned with the main transfer means, said auxiliary means including normally disengaged gearing positionable to interconnect their respective register wheels and positioning means for positioning said gearing in connecting relationship, and means operated by the highest order register wheel aligned with said main transfer mechanism for operating the auxiliary transfer mechanism in the orders not aligned with said main transfer means, the combination which comprises a centralizing means controlled by operation of the main transfer means in the highest order and operated by said drive means for centralizing a predetermined intermediate. one of said register wheels associated with the auxiliary transfer mechanism during operation of said auxiliary transfer means, said centralizing means being rendered inoperative whenever said intermediate register wheel is aligned with said main transfer means.

10. in a calculating machine having a motor, frame, an ordinally arranged actuating mechanism men ted in said frame, a shiftable carriage, a plurality of ordinally arranged register wheels in said carriage, a lower order group of said wheels lying inboard of said frame and a higher order group of said wheels lying outboard thereof when the carriage is in its end position, a main transfer mechanism mounted in said frame and driven by said motor for effecting transfers in the inboard group of register Wheels and an auxiliary transfer mechanism mounted on said carriage for effecting transfers in the higher order group of register wheels, said auxiliary transfer mechanism including normally disengaged gearing positionable to interconnect said higher order group of register wheels, positioning means for positioning the outboard portion of said gearing in connecting relationship, and means operated by the highest order inboard register wheel for operating each auxiliary transfer mechanism: a centralizing member adapted to centralize a predetermined intermediate one of said higher order register wheels, and a motordriven operator effective to operate said centralizing memher during operation of the auxiliary transfer mechanism whenever said member lies outboard of said frame.

11. In a calculating machine having a motor, a frame, an ordinally arranged actuating mechanism mounted in said frame, a carriage shiftable with respect to said frame, a plurality of ordinally arranged register Wheels in said carriage, certain of said wheels lying inboard of said actuating mechanism and others of said wheels lying outboard thereof, a main transfer mechanism mounted in said frame and driven by said motor for effecting transfers in the register Wheels cooperating with said actuating mechanism, and an auxiliary transfer mechanism for the group of register Wheels lying outboard when the carriage is in its end position, said auxiliary transfer mechanism including normally disengaged gearing positionable to interconnect said register Wheels for effecting transfers therein, positioning means effective upon the orders lying outboard from time to time for positioning said gearing in connecting relationship, and means operated by the highest order register wheel operated by said main transfer mechanism for operating said auxiliary transfer mechanism: a centralizing member mounted on said carriage and adapted to centralize a predetermined intermediate one of said register wheels associated with said auxiliary transfer mechanism, and a motor-driven operator for operating said mem her so long as said member lies outboard of said actuating mechanism.

References Cited in the file of this patent UNITED STATES PATENTS 362,219 Koch n7 May 3, 1887 809,075 Rechnitzer Jan. 2, 1906 1,341,995 Pitman June 1, 1920 2,597,463 Ellerbeck May 20, 1952 2,597,487 Hopkins et a1. May 20, 1952 2,597,488 Hopkins et al. May 20, 1952 2,597,507 Machado et al. May 20, 1952 2,653,765 Machado Sept. 29, 1953

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