US2658683A - Accounting machine for handling nondecimal entries - Google Patents

Description

No, 10, 1953 E. J. RABENDA 2,658,683

ACCOUNTING MACHINE FOR HANDLING NONDECIMAL ENTRIES Filed June 12, 1951 12 Sheets-Sheet l INVENTOR EDWARD J. RABENDA Y w. TTORN2 Y E. J. RABENDA Npv. 10, 1953 ACCOUNTING MACHINE FOR HANDLING NONDECIMAL ENTRIES l2 Sheets-Sheet 2 Filed June 2, 1951 ATTORNEY Nov. 10, 1953 E. J. RABENDA ,683

ACCOUNTING MACHINE FOR HANDLING NONDECIMAL ENTRIES Filed June 12, 1951 12 Sheets-Sheet 3 INVENTOR EDWARD J. RABENDA ATTO R N EY E. J. RABENDA Nov. 10, 1953 ACCOUNTING MACHINE FOR HANDLING NONDECIMAL ENTRIES l2 Sheets-Sheet 4 Filed June 12, 1951 FIG.3

INVENTOR EDWARD J. RABENDA B9 w K ATTORNEY Nov. 10, 1953 E. J. RABENDA ACCOUNTING MACHINE FOR HANDLING NONDECIMAL ENTRIES Filed June 12, 1951 12 Sheets-Sheet 5 FIG.5

FIG .6

INVENTOR EDWARD J RABENDA 1 fm ATTORNEY TENS OF SHILLINGS ORDER NovflO, 1953 E. J. RABENDA 2,653,683

ACCOUNTING MACHINE FOR HANDLING NONDECIMAL ENTRIES Filed June 12, 1951 v 12 Sheets-Sheet 6 POUNDS SHILLINGS ll PENCE |o PENCE FIG.8

0-9 PENCE l23456789 ll 13 TEN OF SHILLINGS UNITS OF SHILLINGS HOLES-TYPE 9 SAMPLE 9-4 H a 3. m0 5 F"; 9 PRlNTING POUNDS COLUMNS PENCE-COLUMN 3mm SHILLINGS COLUMNS EDWARD JRABENDA Gttomeg Nov. 10, 1953 E. J. RABENDA 2,658,683

ACCOUNTING MACHINE FOR HANDLING NONDECIMAL. ENTRIES Filed June 12, 1951 12 Sheets-Sheet 7 (Ittomeg Nov. 10, 1953 E. J. RABENDA 2,658,633

ACCOUNTING MACHINE FOR HANDLING NONDECIMAL ENTRIES Filed June 12, 1951 12 Sheets-Sheet 8 lib-E999 "99:888--- 81.)L I .D mgff S O z 3nventor m gfl EDWARD J.RABENDA ad-EB m fi I By L m3; 1

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28l- (Ittorneg Nov. 10, 1953 E. J. RABENDA ACCOUNTING MACHINE FOR HANDLING NONDEICIMAL ENTRIES l2 Sheets-Sheet 9 Filed June 12, 1951 CFIO3 INSULATION RvAo INSULATION msuumon 270 ooooooo (o o o oooooooooo 0006 INSULATION SECOND READING STATION [I LjRIl'l II FENCE RIO LEIRIO-I RIZ-I/ m PENCE lnventor EDWARD J RABENDA FIG. llo

(Ittomeg E. J. RA BEN DA ACCOUNTING MACHINE FOR HANDLING NONDECIMAL ENTRIES Filed June 12. 1951 l2 Sheets-Sheet 1O I LQ L TENS POUNDS SHILLINGSSHILLING FENCE I STERLING ACCUMULATOR ISnventor llb EDWARD J. RABENDA Gttomeg Nov. 10, 1953 E. J. RABENDA 2,658,683

ACCOUNTING MACHINE FOR HANDLING NONDECIMAL ENTRIES Filed June 12, 1951 l2 Sheets-Sheet l1 CR I06 266 I v n 274 CR I04 TENS u TS TENS UNITS PENCE POUNDS POUND SHILLING SHILLING I TRANS LATOR CONT ROL i MAGNETS I I ZSrwentor: EDWARD J. RABENDA- FlG.llc

Cittomeg Patented Nov. 10, 1953 ACCOUNTING MACHINE FOR HANDLING NONDECIMAL ENTRIES Edward J. Rabenda, Poughkeepsie, N. Y., assignor to International Business Machines Corporation, New York, N. Y., a corporation of New York Application June 12, 1951, Serial No. 231,112

7 Claims.

The present invention relates to improvements in fraction accumulating and printing devices and is more particularly concerned with means for accumulating and printing duo-decimal amounts, such as pence in the British monetary system. A preferred use of the present improvements is in its incorporation as a pence accumulator order in an accumulator which is modified in certain other orders to accumulate shillings and pounds, thus enabling the accumulator to function to receive entries according to the British monetary system.

The main object of the present invention is to dispense with the two columns or orders previously utilized to represent 1-11 pence and to have such control originate in a single control order, such as a single column of a perforated record, and to further provide a suitable control means exercised by the single column for setting a single printing member to print any of the digits 1-9, or 11 pence. In this manner any printing member of a bank is adapted to print not only decimal digits 1-9 but fractions or duodecimal figures 10 and 11 as well.

A further object of the invention is to provide control means exercised by the printing member to initiate the accumulator entry of either 1-9 pence, and upon entry of 10 or 11, slightly earlier in the cycle, to thereby enter the desired number of pence.

A still further feature of the invention is to provide a selective control, preferably obtained from the 10 or 11 pence designation on the controlling record to condition the machine so that the 10 or 11 entry is initiated slightly earlier in the cycle. A further selective control as to which pence 10 or 11 is to be entered is also exercised by the appropriate 10 or 11 pence designation.

In some forms of accounting machines it is generally preferable to initiate accumulator entries under control of the printing mechanism when it is started to its digit representing position, thereby effecting and insuring a correspondence between the digit printed and digit to be entered. The present arrangement, as far as the entry of pence is concerned, also has this advantageous feature.

At times it is desired to omit printing in which case the present arrangement also provides for entry of amounts according to the sterling note.-

2 tion directly into the sterling accumulator, without entries being controlled by the printing mechanism.

A feature of the invention in the above type of direct entry is to subdivide the entry of 10 and 11 pence into two entries, the first of which is a first entry of 9, and a second entry of 1 or 2, depending upon the entry of 10 or 11 pence. This second entry is determined by the pence designation on the perforated record, and is selectively effected under control of the 10 or 11 pence designations.

Other objects of the invention will be pointed out in the following description and claims and illustrated in the accompanying drawings, which disclose, by way of example, the principle of the invention and the best mode, which has been contemplated, of applying that principle.

In the drawings:

Figs. 1a and 11) when assembled together with Fig. 1a on the top disclose in side elevation one order of the printing mechanism and associated translator mechanism which are adapted to translate and print the values of pounds, shillings and pence.

Fig. 2 is a view in side elevation of the operating gears for the drive shafts of the printing and translator mechanisms.

Fig. 3 is a detail view in side elevation of any decimal order of the accumulator for adding pounds and units of shillings.

Fig. 4 is a view of some of the parts shown in Fig. 3 but in operated position.

Fig. 5 is a view of the accumulator order which is adapted to accumulate pence values.

Fig. 6 is a view of the accumulator order which is adapted to accumulate tens of shillings or halves of pounds.

Fig. '7 represents the code for selecting type.

Fig. 8 is a view of a portion of a card which is adapted to be perforated to represent pence, shillings and pounds.

Fig. 9 is a view showing a sample of printing adapted to be effected by the present printing mechanism for printing pounds, shillings and pence.

Figs. 10a and 10b comprise a timing diagram.

Figs. 11a, 11b, 11c, and 11d when assembled in the named order constitute the wiring diagram.

Card punching The form of card which is preferably employed to control entries and printing in the present machine is shown in Fig. 8, columns 9-13 being appropriated to receive hole punchings representing pounds, shillings, and pence in the sterling or British monetary system.

Columns 10 and 9 are allocated to represent respectively units and tens of pounds by holes at -9 in each of these columns. Columns 11 and 12 are allocated to represent shillings 1-19, by a hole at 0-9 in column 12 to represent units of shillings and a hole in column 11 to represent 1 in the tens of shillings order. Thus, one or two columns are punched to represent 0-19 shillings. Only a single column, column 13, is necessary in the present machine for representing 1-11 pence. Index points 0-9 are punched to represent 0-9 pence. A hole at X represents pence, and a hole at R represents 11 pence.

Translator and printing mechanism The present machine is provided with a printing mechanism which is adapted to print, as shown in Fig. 9, the entered amounts in pounds, shillings and pence. The units pence order of the printer has a type wheel 69 which not only prints the pence 0-9 but on the same wheel (as shown. in Fig. 1a) the numbers 10 and 11 are provided to print these pence amounts. The pence type 9-9, as well as the units and tens of shillings and all pounds orders, are selected by the holes at 9-9 index point positions, but 10 and 11 type are not directly selected by the X R holes since, as will be made clearer on, such holes select an impulse transmitting means which transmit impulses 9-& or 9-3, and through a translator the pence printing wheel is rotated to a position to print the 10 or 11 pence type (see code of Fig. '7).

Reference character 22 in Fig. 2 represents a main drive shaft which is rotated one revolution for each machine cycle. The customary card feed shaft which drives the card feed mechanism is driven by shaft 92, and interposed between the card feed shaft and shaft 22 is the usual card feed clutch which is engaged, as is well known, by the energization of the usual CF clutch magnet (not shown).

In Figs. 1a and 2 reference numeral 39 designates the printing impression drive shaft which is driven with a uniform speed of rotation for each cycle of the operation of the machine. The main drive shaft 22 has secured thereto a gear 59 (Fig. 2) which drives a gear l! secured to the printing impression drive shaft 33 to rotate the latter at a uniform speed of rotation one and a half revolutions for each revolution of drive shaft 22. Reference numeral 99 designates the type selecting drive shaft which rotates two and one-twelfth revolutions for each operating cycle. At times shaft 99 is driven with a uniform speed of rotation substantially synchronous with the drive shaft but at other times the speed of rotation given to shaft 99 is decreased or increased with respect to the drive shaft 98.

In the columns where 0-9 is perforated such holes are analyzed when t. e card is in the second analyzing station, as will be described. For each card column a printing control magnet 9i is energized and in accordance with such holes a setup is made in the translator and interpreted as a delayed mechanical impulse which consists of the movement of an operating link 93 (Fig. id) at differential times. For the selection of type 1-9 determined by the holes 1-9 the operating link 99 is shifted to the left at differential times between l35-279 of the operating cycle as is shown in the timing diagram (Fig. 10a). During this time shaft is being rotated at a uniform speed of rotation. The shifting of the op erating link 93 at differential times is provided herein to transmit a differentially timed me chanical impulse to trip the type selecting clutch shown in Fig. la, now to be described in detail.

For each printing order there is pivoted on a rod 66 a triple arm member consisting of arms G l, t5 and a clutch release arm 6?.

Shaft 39 has secured thereto a tube 93 which is fluted transversely along its periphery to provide clutch notches E59. Tube constitutes the driving clutch member. Encircling the clutch tube 69 is a plurality of gears there being one gear for each order of the printing mechanism. For mounting the gears it on the clutch tube 96, each gear has inte ral therewith a T2. To provide for the lateral spacing between the gears it the gears are guided by guide slots l 2 formed in guide blocks 53, M and By such spacing members the gears 59 are separated to allow independent rotation and to also locate a clutch pawl it which is pivoted on the related gear to cooperate with the clutch release arm 9?. The clutch release normally holds the clutc pawl F9 in such position that its tooth ll is out of engagement with any of the clutch notches 69 of the clutch tube {355. when the clutch release arm El is rocked as a result of the actuation of operating link at differential time, the clut h. is engaged because a spring 38 attached to clutch pawl will rocl; the latter in order that clutch tooth ll will engage a clutch notch 69 determined by the differential time the operating link 93 is actuated. The above described clutch is the printing type selectin clutch and causes the diilerential rotation of the printing wheel since the car '59 and the printing teeth of the type carrying wheel are intergcared.

Figs. 1a and lb show the arrangement or" the printing devices for a single order and chine is preferably provided with duplicate devices for print n a plurality of characters.

If the operating link was shifted at about 138 as a result hole at the 9 index point position of the controlling column, the clutch release arm 6? would be rocked at this time and pawl would be released and rocked by spring it so that clutch tooth ll engages a clutch notch 69 and printing wheel will thereafter continue to retate to such position as to present numeral type 9 to the printing line. The diilerential time at which the operating linl: is actuated dctermines the extent of counterclockwise rotation of the printing wheel 99 from a rest position necessary to select the type 1-9 for printing. After the predetermined extent of rotation of the printing wheel has been effected and the printing impression has been effected, with the type selecting clutch still engaged, the printing wheel 99 will continue to rotate until the free end of the clutch pawl strikes the clutch release arm 8? which, in the meantime, has been brought to its normal position, by means of a compression spring (Fig. la). When such disengagement is effected the printing wheel 69 is at the normal position shown in Fig. 1a.

Each printing wheel 6!} is carried by an arm 8| loosely pivoted upon a rod 82 and provided with a rearwardly extending follower extension 84 which is operated by a cam projection 83 of a cam disk 85 which constitutes a driven member of a printing clutch.

Shaft 38 rotates a clutch tube 86 fixed thereto and likewise encirclingthe clutch tube 88 is the driven clutch disk 85 upon which is pivotally mounted a clutch pawl 81. Clutch disk 85 and parts carried thereby are guided similarly to gear 18. Associated with the clutch pawl 81 is a clutch release arm 88. When the clutch engagement is efiected between the clutch pawl 81 and one of the clutch notches of the clutch tube 86, the disk 85 will be rotated in a clockwise direction, whereby the cam projection 83 will cooperate with the follower extension 84 to rock arm 8| about the rod 82 against the action of the return spring 89. The engagement of the printing clutch now being described is effected when the print control magnet SI for each order is again energized for numeral printing by an "N impulse, as will be described.

When the printing clutch engagement has been effected, each cam 85 will cooperate with the related follower extension 84 to rock the associated printing arm 8| to force the printing wheel 68 against the usual inking ribbon and platen 98 around which platen is positioned the paper strip to be imprinted. As each arm 8| is rocked against the action of the spring 89, the printing wheel 68 is being rotated counterclockwise but since the printing Wheel is now rolling over the gear I8, this rolling action will cause an equal and simultaneous rotation in a clockwise direction. Both of these opposite rotations will, in effect, cause the printing wheel to be immobile with respect to its rotation when it moves to the right to strike the platen 98, the type striking the platen squarely and firmly to cause a legibile impression.

After the printing operation, when cam extension 83 of the cam disk 85 passes by the follower extension 84, spring 89 will now be effective to return the type wheel carrying arm 8| to normal position and the extension 84 now bears against the circular peripheral edge of the cam disk 85.

After the printing operation, since the type selecting clutch is still engaged, the printing wheel 68 continues to rotate as previously stated until the clutch pawl I6 strikes the clutch release arm 61 which, in the meantime, has been positioned to normal, thereby disengaging the type selecting clutch when the printing wheels are at normal position.

The printing clutch continues its engagement for a complete rotation of the cam 85 and the clutch disengagement is efiected by the engagement of the clutch pawl 81 with the clutch release arm 88.

As the free end of the clutch pawl I6 strikes the clutch arm 61 there is a tendency to cause the gear I8 to rebound counterclockwise. This action is prevented by the cooperation of a spring-pressed detent arm 96 with a shoulder 91 of a plate 98 secured to each gear I8. When the normal position of the clutch is obtained, the detent arm 98 will engage the shoulder 91 to prevent such rebound and retain the clutch parts in their normal position.

A somewhat similar rebound preventing mechanism is also provided for the printing clutch which consists of a spring-pressed detent arm 9| cooperating with the shoulder 99 of the cam disk 85.

Cams I88A, I88B, I880 and I88D (Figs. 1a

6 and 1b) are driven by driving means to be subsequently described one revolution for each cycle of operation of the machine. It will be noted that these cams difier in their cam contours and the particular cam portion which is effective in each point of the operating cycle is shown in the timing diagram of Fig. 10a. Each of the cams is provided with cam heights which are identified by three dotted circles associated with the cam |88A (Fig. 1b), which circles are of three different diameters and represent the heights of the cam contours as Low, Medium and High. The corresponding designation is shown in the timing diagram of Fig. 10a for such cams to identify the particular cam portion effective in each point of the operating cycle. The cams 188A, I88B, I88C and I88D may for convenience in construction be extended longitudinally to provide fluted cam rods having the configuration and outline in Fig. lb to cooperate with a plurality of orders.

Each cam I 88 cooperates with a related releasing and blocking member H8. The reason that the member I I8 is also called a releasing member is that when elevated a predetermined distance by the Medium or High cam portion of the related cam I88 it will release the operatin link 63 for movement but when in its normal lower position (due to the Low cam portion) it will block the link 83 against movement. Each member I|8 is slidably mounted in a slot I8I of a guide block I82 and is further guided by a rod I 84 which receives a guide slot I93 of the related member H8. Also pivoted on a rod 58% carried by the block I82 is a latch pawl I88. Interposed between the pawl I89 and the associated member H8 is a compression spring I81, the spring I8'I functionin to urge the member 8 downwardly so as to always press against and contact with the cam contour of the related cam I88. Each member H8 is provided with a shoulder I88 cooperating with a lug I89 formed as an integral part of the link 63.

The link 63, referring to Fig. la, is slidably mounted in guide slots formed in a support plate III to support the link 63 at one end and guide its movement, and referring to Fig. 121 the other end of the link 83 is dependently hung by arm 5 it, which arm has a cam follower extension H8. A compression spring I I 4 fitting in a spring support and guide block for arm I Iii urges the link 83 to the left and when such spring is effective for action under control of a cam IE5 it serves as the source of a delayed mechanical impulse transmitted to link 63 at a differential time to rock the clutch release arm 6? to initiate rotation of a type wheel.

Recalling now that each cam I 88 has cam contours of three diiTerent heights, it should be observed that when member I I8 is at a position determined by the low portion of the earn 488, the shoulder I88 abuts lug I89 to block the link 83 from movement to the left, urged compression of the spring i i. In attempting to do so lug I 89 will bear against the shoulder I88 and urge the member H8 clockwise, which movement is restrained by the cooperation of an upstanding hooked portion H2 of member H8 against the latching end of the pawl I86. Assuming now that a cam has been rotated so that the Medium cam portion of the cam contour has raised th member IE8, such difference in cam height with respect to the Low cam height will elevate shoulder |88 slightly further above the related lug 89 and by the continued cooperation of the hooked extension 2 of the member H8 with the extremity of the pawl &5, clockwise movement of the pawl l ill will be still restrained.

Assuming now that the High cam portion has positioned the member 6 i c to its maximum height, the shoulder 5223 will be still further above the lug lfifi and the member is now in such position that the compression spring it? will be effective to rock the member 5 i cl ckwise so that a hooked extension 8 it will catch over the latch end of pawl Hi5, provided that at this time the pawl lGG is rocked counterclockwise due to the concurrent analysis of a hol in the card at the time the member 5 is in its hichest position. If the pawl lt-fi is not recited s ghtl counterclockwise, no latching of the member i it will take place. Sumportion of a cam marl/ting, "he-never the Hi h i t to the highest position,

has elevated Ylc such member be latched if the related pawl to lat h'l a position.

N is concurrently rocked If there is no rocking of the pawl at this time, member l ill will not be latched, and will be subsequcntly free to move up down in accord ance with the successive cam contour as the related can". rotates.

The above descri operation oi the parts under control of th ifiilA but it should b noted that identica cams i260 and For this reas description of operation not be repeated for duplicate parts,

For the purpose of roc latch those members iii which are at t highest position at the tine hole is ,.ense the card it will be seen that reierr each prir. ing magnet iii when energized an armature i and rocks t-.e same so o r a related connected link i it to the left. Eaten ing" from the link; i l 6 are four integral extensions each of which cooperates with the related pawl The result this construction is that the impulse directed to the magnet ill will attract its armature M5 to shift the link rock the four pawls H353 concurrently but only that pawl 55363 is effective for latching the related meniber MB if said member Hi3 has been elevated. to its highest position. Therefore, one or more of the pawls i may be rocked idly at the same time without latching the related members l To prevent the armature MS from sticking to the core of the magnet 5? due to residual magnetism, it is desirable to provide means to positively restore the link lit armature 6&5 to normal by mechanical means times. with the i tation of earns ill'i. To his end there 5 pi video. a magnet knockoff earn a (Fig. 1a) notched as shown. A follower arm iii of a clut release cooperating with the cam has a mechanical connection with the link iEB. At the time the iii is energized it will be observed that follower arm 52% cooperates with a notch lfiiic of the cam Thereafter, such arm cooperates with the following cam portion itch to rock arm R24, linl: H 5 and armature iii-3, restoring the armature i E ii to normal it should remain attracted to the core under the above cir cumstances.

Referring now to Fig. 9a, it is obvious that the time the card holes 91 are analyzed one or more cams will have their High portions in cooperation with the latching members Hi. At the time the 9 card hole is analyzed the High portions of cams 585A and will) will be effective. At the time the 8 card hole is analyzed, only cam MBA will have a High portion effective at this King the pawls n time. For all of the cards holes 9-1, this condition may he represented by the following table:

TABLE I Members 110 Loiched It is obvious from the above table that members H8 are latched singly or in predetermined combinations, so that at the tern ination of the analysis of the card holes 9-1, some of the storm bers lit will be latched others will not be latched and therefore free to be positioned according to the contour of their cams during their subsequent rotation. it is explained that once a member 5 it is latched it is not free to thereafter inove upwardly and downwardly in accordance with the subsequent cain contour of the related. cam, but remaining unlatched members can do so. After latc ing 01"- members Hit in predeterinined combinations the contour or" the cams 5536A, iStC and its D which are thereafter effective will determine the time in the operating cycle that the operating link will be moved to the left in a oer now to be described in detail:

more m mbers Eiii are latched oles analyze e, the further on of the cams will raise lower re aining unlatched rosin. i553 according to the cam contours of the respective cams, but during said further rotation of the earns the one more of such unlatched members uh '9 int is reached in the operatingcycle when 'he related to the un atched ineinbers oncurrently present cain operations of Medium -eight the unlatched members. It will be called that since the latched nie ers ii?) are positioned that they do not restra n the niove rocnt of the link under the in. use of the spring 6-, and further, the elevation of any u-latched member by a cam portion of Meheight will also unlock the linl obvious that when both of these condi for four of the latches lit link is l to move under the influence of the spring cain This will be made clear y reference to a particular example.

If, for example, the 9 hole is sens-ed, n ers USA and Mil-C are latched due to t ain portion or" their respective Cains and such latching of members i itC occurs about 7 or" the operating on of the arm I I 3 will cooperate with the notch I25b designated 9" in both Fig. 1b and the timing diagram of Fig. 10a. Operating link 63 is now unlocked at four points and the movement of the link to the left is effected at about 133 by spring H4. The link will now operate the clutch release arm 61 and therefore engage the type selecting clutch to initiate the rotation of the printing wheel 60 to select the numeral type 9.

The type selecting clutch will be engaged at about 150 of the operating cycle and from the timing diagram (Fig. 10a) the type carrying wheel 60 will rotate 4, 4, 4, 4, 4, 4, 4, 4, 4, 3 or thirty-nine teeth, and at about 345 of the operating cycle the 9 type will now be in position to print.

Reverting now to Fig. lb, when the operating link 63 is moved to the left to effect the engagement of the type selecting clutch the cam follower extension I I8 is in the bottom of the notch I25b of the cam disk I25 and further rotation of the cam I25 in a clockwise direction will, through the following inclined cam portion i250, oooperate with the cam follower extension II8 to positively restore the operating link 63 to the right without, however, causing the unlatching of any latched member H0. At about 330", an extra high cam portion I25d will shift link 33 to the right beyond the Fig. 1?) position, and in so doing for those members I I3 which have been latched lug I39 will engage the shoulder I23 of the respective member III] to rock the same counterclockwise to unlatching position, spring I01 being compressed during this operation to rock the pawl I06 to normal position shown in Fig. 1b. With respect to any unlatched member I I0, movement of the operating link 53 to the right at this time may also effect movement of such members I I but the operation of such is ineffective.

It is desirable to provide means to insure that the clutch release arms 61 are at their normal position and will remain so when engaged by the extremity of the clutch pawls I6 to unlatch the latter from the ratchet teeth 69. Such means now to be described is independent of the springs I9. Referring to Fig. lb there is pivoted on a shaft I28 a plate which has fixed thereto a comb plate consisting of spring-formed fingers I29 which bear against the lower extensions 65 of the clutch release arms 61. Attached to shaft I28 is a follower arm I30 carrying a roller I31, cooperating with a cam I32 secured to a drive shaft I43. From Fig. 1011 it will be seen that a cam rise I32a operative at about 306 of the operating cycle is effective to cooperate with the follower roller I3I to rock the shaft I 28 counterclockwise, pressing the spring fingers I29 against the related extensions 85 of the clutch release arms 61, positively retracting them to the normal position shown in Fig. 1a. Thus, it is insured that clutch release arms 6? will be in such position that they will be in the path of the free ends of the clutch pawls I6 to move them to unclutching positions.

A low portion I32b of such cam I32 is effective to enable the follower arm I30 to be rocked by a spring I33 to cooperate with such low portion I32b which releases the spring pressure on the clutch release arm 61 to free the latter for rocking to engage the type selecting clutch.

Upon transmission of the N impulse through circuits to be described, the second energization of the magnet 6| again attracts its armature H and shifts link H6. The latter thereupon rocks the clutch release arm I24 to unlatch the clutch release arm 83 of the printing clutch. At this time a low portion i200 (see Figs. 1a and a) of cam I23 cooperates with 5 the cam follower extension I2! so as not to restrain the rocking of clutch release arm H4. When the clutch release arm 83 is unlatched, a depending extension I27 moves in a clearance portion I26 of said arm I24. Cain disk 83 will now rotate clockwise and the cam extension 83 will strike the follower extension 8d at the time the selected type is at the printing line to effect the printing impression.

It is undesirable to have the clutch release arm 88 released whenever arm I24 is rocked by link H5 the first time due to the analysis of card holes 1-9 and to this end a high portion I3'Ia of cam I31 cooperates with arm 88 to block it against movement to release the printing clutch during the analysis of holes 1-9. When the N impulse is transmitted, as will later be described, the low portion of cam I312) (see Fig. 1%) will cooperate with clutch release arm 83 to permit its rocking to engage the printing clutch. After this the cam rise I370 of cam 53? will function to positively retract the clutch release arm 88 to normal position to cause disengagement or" the clutch release pawl 8'? after a complete revolution of the printing clutch. At the termination of the operating cycle a cam rise IZild of cam I28 functions to rock the clutch release arm I24 clockwise to again position it beneath the extension it? of the clutch release arm 88, which previously been elevated to the position shown in Fig. la. The cam rise I2Id also shifts link its to restore armature H5 to normal if it should stick to the core of magnet 6 I.

while the operation of the machine has been described in connection with the selection of the 9 type under control of the 9 card hole, the same principle of operation for effecting the above results is involved for other holes as is evident from the following table:

TABLE II Cams 100 at Medium Cam Portion Hole Members 110 Latched 100B, 100D. 100B, 100C, 100D. 100A It will be recognized from this table that the concurrent position of cams its at a Medium height cam portion for those cams which have not previously latched members He, will determine the time the mechanical impulse is trans mitted.

Gear drive for printer ating cycle. The shaft 39 is driven at times with a uniform speed of rotation synchronous with the drive shaft, but at other times the speed of rotation given to shaft 39 is decreased or increased with respect to drive shaft 38, in order to select the desired alphabet type of a selected group of alphabet type. This means to effect the variable drive of shaft 39 is disclosed in full detail in Patent No. 2,439,445, issued to H. S. Beattie, and since the alphabet printing is of no concern here it need not be described nor necessary to understand the present invention. With such variable speed drive the shaft 38 will rotate the type wheel at a decreased. speed to present the selected numeral type to the platen at about 330 of the cycle, at which time the previously clutched printing earn as will have its cam projection 33 in position to strike the projection 85 to impress the selected numeral type against the platen lit.

The machine includes a driving means driven by the shaft 22 for rotating the cams UNA, i993, 8360 and IMD, lZil, 525, l3? and l32 in synchronous relationship and such cams are driven one complete revolution for each operating cycle.

The driving means for driving cams iEQA, ifiliC and liltl) will now be described. Secured to shaft 22 is a gear Mil (Fig. 2) which, through a gear Mil, drives a gear M2 secured to the drive shaft it for the cam IWD. Shaft 22 is extended to directly drive the cam ItilC. Referring to Fig. 2 gear Mil, through a gear its, drives a gear H35 secured to the drive shaft M5 for cam iiiiiB. Gear I45, through an idler gear i l-"i, drives a gear Hi8 secured to the drive shaft M9 for the cam Hit-3A. By such driving means the cams icca, EWB, ldiiC and 190D are driven synchronously. Referring to Fig. 2 gear i ls has rotatable therewith a gear I59 which, through an idler gear I59, drives a gear H52 attached to the shaft E53 to which the cam I25 is secured.

Gear its also meshes with a gear i5 2. secured to a shaft N55 to which shaft the cam I is se cured.

Also referring to Fig. 2 to drive shaft 38 there is secured a gear H56 which meshes with a larger gear l5? secured to a shaft i553 to which shaft the cam 13? is secured.

Thus, through the intergearing last described, the operating cams i253, E25, l32 and it? are driven synchronously with the operating cams liillA, IEIBB, BBC and lililD.

Accumulator The form of accumulator fully shown and described in the Patent to Lake et al., No. 2,328,653

is shown in Figs. 3-6 and modified to accumulate r amounts representing pence and shillings. The accumulator orders which are adapted to receive amounts in pounds and units of shillings are un modified decimal orders as shown in Figs. 3 and l. The order adapted to receive tens of shillings is a units receiving wheel receiving a unit carry from the units of shillings wheel, and adapted by its carry mechanism to effect a unit carry to the units of pounds wheel when it goes from 1-0. The pence accumulator wheel is adapted to receive l-ll pence. Upon addition of a unit pence to 11 pence the units carry mechanism thereof eifects a unit carry to the units of shillings wheel.

In Figs. 3 and 4 the driving shaft H3 is suitably geared to the card feed drive shaft so as to make one revolution for each cycle of operation. For each denominational order of the accumulator shaft H3 has a gear H4 secured thereto which drives the accumulator wheel clutch mechanism. Each decimal order of the accumulator has a ten-toothed ratchet H5 which is free on a post H6 and integral with a tentoothed gear ill driven by gear H4. Rotatably carried by post H6 is a spoked wheel or disk also having ten teeth 52cc. adapted to be engaged by a tooth 725a on the long arm of a clutch lever Hi to hold the disk against rotation in a counterclockwise direction.

At the side of disk 12:; is an accumulator wheel 526 for the pounds orders and the units of shillings order which is rotatable on post 116 and provided with ten peripheral notches "E2411. Wheel for each decimal order may take any of ten rotative positions for the digit values 0, 1 9. A spring-pressed lever engages with a notch 524a of wheel 52:3 to hold the accumulator wheel impositively and to align it in the value position into which it has been rotated. A transfer cam 726 is fixed to the side of wheel F24 and a stud in wheel 724 extends through an opening in disk 52% to pivotally carry a clutch dog 5%. A spring urges the tooth of dog E30 to engage ratchet H5. In the position shown in Fig. 3 the clutch lever '32! is in declutching position, its tooth l'fzl is restraining rotation of disk 52d counterclockwise and dog T38 is clear of ratchet H5. The dog :39 is being held clear of the ratchet by coaction of a pin will) on the dog with a cam edge Mel: of disk 720.

When the clutch lever 'l2i is rocked clockwise to cause its tooth l 21a to release the disk 12!) for counterclockwise movement, the spring MI is effective to rock the dog T39 into engagement with ratchet lit. During this movement of the dog ltd its pin loch rides along the cam edge 32% and cams the disk counterclockwise until its tooth 'l previously engaged by tooth 'I'Zla is to the right of the latter tooth. The parts are then in the clutching position shown in Fig. 4, and the accumulator wheel 22s is coupled to the driving device H5, ill for rotation. Through engagement of the pin 63% of the dog 13!] with cam edge 12% the disk T26 is forced to rotate counterclockwise together with the accumulator wheel.

When the clutch lever '52! is rocked counterclockwise to a declutching position its tooth l 21a intercepts a tooth l2ca of disk 72B and stops the disk. Accumulator wheel 1% and dog continue rotating while cam edge 72% of disk I20 earns the pin with outwardly until it is again in its outer position. As the pin 73% is cammed outwardly clutch dog 7'36 moves clear of ratchet H5 and declutches the accumulator wheel from the driving means. The accumulator wheel is then held and centered in its new value position by lever A spring-urged latch i 35 serves to hold lever Hill in either clutching or declutching position.

The clutch lever '52: has a short arm swiveled to the lower end of an armature which is disposed between an advance magnet AM and a stop magnet SM. Energization of magnet AM rocks armature "E36 clockwise to lower the free end of lever lfzl, and energization of magnet SM rocks armature 736 counterclockwise to raise the free end of lever l2i. Concurrent energization of the AM and SM magnets, as will be described, will retain lever 52! in the position shown in Fig. 3 which inhibits rotation of the accumulator wheel fi l.

When the accumulator wheel 72% of each decimal order is in its 0, 1 8 positions, the cam i726 holds a carry lever l3! pivoted at F38 in the position shown in Fig. 3, where a contact blade I39 (insulated from lever 131) takes a midposition between contact elements I40 and Ill. When the wheel is in its 9 position a tooth on lever 131 is dropped into a cut 126a of cam I26 and blade i353 contacts element I4I. When the wheel I24 passes from the 9 to position a rise i262; rocks lever 131 to cause blade I39 to engage contact element I46. When the lever is so rocked an arm I42 integral therewith is engaged and held by a spring-urged latch I43 which maintains the contact engagement between contact elements I39 and I40 until a pin I44 in gear H4 strikes an arm I45 integral with the latch I43 to release lever M2. The point in the cycle at which such unlatching occurs is indicated in the time chart of Fig. 10a.

The accumulator is also provided with a mechanical knockoff or declutching mechanism which comprises three pins I5I, I52 and 153 secured to the side of gear H4 and adapted during rotation of gear IE4 to ride in succession under an edge of clutch lever I2l. Assume the clutch lever to be in lower position, when either pin I5I, I52 or I53 engages lever I2I, it cams it upwardly into the position of Fig. 3. The knockoff pins I5I, I52 and I53 are effective at fixed points of the cycle as indicated in the timing diagram of Fig. a.

Fig. 5 shows the modification of a decimal order made for entering and receiving pence. In general, the ratchet wheel II5P has twelve teeth so that a complete revolution of the associated accumulator wheel I24P represents the entry of twelve pence. The usual drive gear H4 and driven gear Ill are also modified as to pitch diameter so as to provide the proper gear drive to ratchet wheel 115?. The transfer cam I26 is modified in respect to its notch 126a and cam portion E2622 to provide a long or short carry. The tooth on lever I31 drops in notch 126a at the II position of the accumulator wheel E241 and when wheel I24P passes from 11-0 the rise 12Gb rocks lever 131 to cause blade I39 to engage element Mil. Pence accumulator wheel I24P is provided with twelve aligning notches 124a. The pin I52 has the same time of operation as the pin I52 for a decimal order to effect the clutch disengagement after the entry of pence 1-11 (see Fig. 10a). The knockoff pin I53, effective after a units carry, also has the same time of operation as the pin I53 for a decimal order. There is no knockoff pin corresponding to the pin I5I which is provided in a decimal order.

Fig. 6 shows the modification of the usual deci mal order for entering and receiving the tens of shillings, or halves of pounds. The gear drive and clutch are the same as for any decimal order, the major change being the alternating arrange ment of notches 126a and cam portions $262) which make up the transfer cam I26. The accumulator wheel (248 is arranged to effect a carry whenever cam portion 126?) rocks lever I37 to close contacts 739, I40, and this is effected at alternate and successive positions of accumulator wheel I245. Thus, this order represents 1, or tens of shillings or 0, no tens of shillings. When the wheel goes from 10 a units carry is effected, as is well known, to the units of pounds order accumulator wheel. Knockoif pins I52 and I53 are arranged so as to effect a clutch disengagement after each step of operation, whether the units is entered under control of a hole in the associated column of the card, or by a carry from the next lower order pence wheel I24P.

Initiation of accumulator entry It is preferable to derive the start impulses directed to the AM magnets under control of the type wheel clutches, each of which it will be recalled is engaged under control of the analyzer or translator, so that the engagement of the printing wheel clutch to rotate the printing wheel to a selected digit position is substantially concurrent with the transmission of the start impulse sent to the AM start magnet. Reverting to Figs. la and it it will be recalled that the analyzer or translator causes a movement of the link 63 at differential points in the cycle, as is indicated in Fig. 10a. This causes the engagement of the printing wheel clutch at a differential time and after the engagement is effected type wheel contacts 82 (Fig. la) are closed at differential points in the cycle to transmit a start impulse to the accumulator start magnet AM of the same order.

Referring to Fig. la the plate 98 has an inclined cam edge 580 which cooperates with and rocks the detent arm 96 shortly after the clutch engagement has been effected. The lower arm I83 of detent arm 96 bears against the top blade of contacts I82. Thus, it is evident that after the engagement of the printing wheel clutch the slight clockwise movement of double arm 96 will close contacts I82. This closure occurs, of course, after the printing wheel clutch has been engaged and the times that contacts I82 are closed to transmit differentially timed impulses 0-9 are shown in Fig. 102;.

Card analyzing mechanism The card analyzing or reading mechanism utilized to control entries in the form of accumulator shown herein is shown only diagrammatically in Fig. 11a since the details of the analyzing mechanism are fully shown and described in the patent to G. F. Daly et al., No. 2,510,559, issued June 6, 1950.

Two reading stations are provided so that when the card is at the first reading station column 13 of the card can be analyzed to determine the presence of an X or R hole to enter 10 or 11 pence. The card is analyzed again at the second reading station to determine the presence of holes at 0-9 in the entry controlling columns 9-13.

In general, a reciprocating frame carries a plurality of insulated metal strips 26I to which are secured analyzing brushes 252 which encounter the perforations and complete the electrical circuit. For each card column the set of brushes 262 makes contact through the perforations in the card column to extensions 263 of commutator contact points 264. A brush readout 255 driven by a shaft rotatable synchronously with the other drive shafts makes successive contact with the contact points 264 to transmit impulses in the order 9, 8, '7, 6, 5, 4, 3, 2, 1, 0, X, R at differential times, as shown in the timing diagram of Fig. 101) for GB.

The above described arrangement of analyzing brushes and readout commutator is duplicated for each card column and the assembled arrangement is duplicated for both reading stations.

The current supply comprises line wires 266 and 261, and current to each commutator (Fig. 11a) is supplied by a circuit from line side 266, through circuit breaker contacts CB, wires 269 to the current supply ring 268 or" each readout commutator. Thus, according to the perforation a timed impulse is transmitted by the readout Entries in accumulator under control of type wheel contacts 182 There will now he described the manner of effooting entries the sterling accumulator under control he type wheel clutches. lhe plug sockets associated with columns 9-13 have plug connections Eli (Fig. 11a) to plug sockets 2'52. lhe operation for columns 9, l0, l1 and 12 will now be described. ll'npulses transmitted according to the perforations in columns 9, 10, 11 and i2 are directed over the plug connections ill to sockets thence through the normally closed relay contacts LCb-e and DEbe to plug sockets from which plug connections 2163 are made to plug sockets For column 13 the circuit when 1 pence are to be entered is from plug socket and through the following relay contacts now in the position shown RE 5-3, B l J3, R849, Ric-272 P to plug socket 2H3. Thence for all orders from 1 -ug sockets 2Y3 oy plug wires 2 ml, plug sockets Elli through the normally closed PCCa-e 'elay contacts, the normally closed RNue relay contacts, to the translator control magnets iii, to line side 26's. The relay contacts are designated H2 and pertain to the five denominational orders, a pence; I; and c=units and tens of shillings; d and e units and tens of pounds.

Thus, impulses are transmitted to energize the magnets iii, and in the manner previously described the printing type wheels Gt will take positions representative of the digits designated by the card holes.

Printing is efiected f om the type wheels by a second impulse transmitted to the magnets E! by the following circuit. The C329 contacts (Fig. 11d) energize the RH relay between l80-295 to transfer the Ella-e contacts (Fig. 11c). t about 183 CRiii l contacts close to transmit an impulse by a circuit from line side CRlihl cani contacts (Fig. lie), the Rita-e contacts now transierred, thence to magnets ti, to line side 213?. As is well known in the iorrn of p inter shown this second impulse will cause the printing clutches to he engaged to effect printing from the selected numeral type.

As was previously described contacts Hi2 will be closed at differential times shown in the timing diagram so tht impulses will be directed. to the accumulator start magnets AM to engage the accumulator clutches to receive and accuinulate the printed amount. 'lhese impulses are tran mitted. between 130-285. Between 150 to 285 SE59 cam contacts close to energize the PCC relay (Fig. lie) to transfer the PCCa-e relay contacts.

At 150 of the cycle CRlil cam contacts (Fig. lib) close to complete a circuit from line side 2%, CR'ES earn contacts, JEN normally closed relay contacts, coil of LC relay, to side 2651. A hold circuit is effected through the LC? relay contacts, CR5 i5 cam contacts, back to line side 265. CRHS cam contacts transfer the LCb-e contacts between 150 and 350. Thus, individually timed impulse circuits are completed from line side CB circuit breaker contacts (Fi 11a), CRlilE cam contacts (Fig. 110), the associated contacts E32, relay contacts PCCa-e now transferred, plug sockets over the same plug connections 2M to plug sockets 2E3. For the shillings and pounds order, thence through the normally closed contacts DEb-c, the transferred LCb-e contacts, wires 2%, to the AM start magnets of such orders to line side Z'Fi'l.

In the above example, it is assumed. that only pence 1-9 are entered, and not 10 or 11 pence, in which case for entry of 1-9 the impulse is directed from pence order type bar contacts 62 (Fig. plug socket 29c, plug wire connection 286, plug socket 285 (Fig. 11b), the now transferred Bil-l relay contacts, as will be described, Rid-'2 relay contacts now normal, thence through Bil-2 relay contacts now transferred as will he described, and wire 2% to the pence order All l accumulator start magnet. lhe impulse circuit to this start magnet is the same when either 10 and 11 pence are to he entered, as will be presently described.

When CR'iii cam contacts close at the impulse will also be directed through DEi2 contacts now closed, through Rio-2 and Putt-fl contacts now in the position shown, through DIJ-l contacts now closed, pickup coil of Rt relay to line side 25'1. The E8 relay is held through its RS4 hold contacts, and CRi it cam contacts to nearly the end of the cycle. By such means relay is energized to operate its Rt-Z and Bil-3 contacts to enable the l-9 impulse from pence order type bar contacts 82 to be sent to pence order accumulator start magnet AM to enter 1-9.

Circuits for printing 10 or 11 pence when designated by X or R in column 13 Sensing of the X or R holes which represent 10 or 11 pence respectively is effected at the first reading station, one machine cycle prior to the 10 or ll entry effected in the second machine cycle. To this end the plug socket 21c (Fig. 11a) pertaining to column 13 has a plug wire connec tion 2'51 ending at a plug socket Eli thus directthe impulse at X or R time to this socket to selectively energize the RIB relay, or all relay which are set up to represent 10 or 11 pence, as will now be described. It will be seen from the timing diagram of Fig. 101) and the circuit oi Fig, 11d that the R13 relay is energized by Chi t2 earn contacts when both X and impulses are being transmitted, and Hi2 relay is energized by Chi i i cam contacts only when the R impulse is transmitted. If both relays are energized at the R impulse time the R impulse from plug s c (Fig. 11a) is directed through the Rlil-l relay contacts now closed, the 35 2-5 relay contacts now transferred, the Bi 5 relay, to line side 28 W hen the X impulse is transmitted the 3352-! contacts will not be transferred at this time so that the X impulse will be directed through the Rl3-l relay contacts, Rl2-i normally closed relay contacts, to pick up coil of Hill relay, to line side If either me or R! i relay is energized a hold circuit is provided through the respective 1 hold con tact, cam contacts CFiiit, hack to line side 2%. [is is well known CF contacts are closed only during card feed and card sensing cycles. Thus, either the are or RH relay or both are maintained energized from the me of their cnergization to 330 of the same cycle. In the meantime,

the card is transported to the second reading station.

CRZlZ cam contacts (Fig. 1101) close to energize the RM relay between 308 and 330 oi": the cycle which relay closes its Hi l-2 and Rid-t relay contacts (Fig. 11d). With either R164! or R5 5-2 relay contacts now closed, depending upon whether 10 or 11 pence is to be entered, a circuit to pick up either Hi5 or RIG relays is closed when CFlM cam contacts close at 315, from

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