US919656A - Adding and listing machine. - Google Patents

Description

J. G. VINCENT & N. WHITE.

ADDING AND LISTING MACHINE.

APPLICATION FILED OCT. 5, 1908.

Patented Apr. 27, 1909.

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ADDING AND LISTING MACHINE.

APPLICATION PILED' OCT. 6, 1908.

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ADDING AND LISTING MACHINE.

APPLICATION FILED O0'I'.5, 1908. 91 9,656, Patented Apr. 27, 1909 s m 3 w m MIC qr M MW m m #L m w m w /Jw-mazu@ 1 L Q Ewm J. G. VINCENT & N. WHITE. ADDING AND LISTING MACHINE.

APPLICATION IILED OUT. 5, 1908.

919,656. Patented Apr. 27, 1909.

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ADDING AND LISTING MAUHINE.

APPLICATION FILED OCT. 5, 1908.

9 1 9 ,656, Patented Apr. 27, 1909.

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ADDING AND LISTING MACHINE.

- APPLICATION FILED OUT. 5, 1908. 91 9 ,656, Patented Apr. 27, 1909.

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'LJM 43 Jaw v fia UNI D. STATES P rENroFEicE JEssE-o. VINCENT AND NELSON WHITE, OF DETROIT, incnioAN, ASSIGNORS TO BURROUGHS ADDING MACHINE COMPANY, OF DETROIT, MICHIGAN, A CORPORATION OF MICHIGAN.

To all whom it may concern:

Be it known that we, JEssE G. Vi'NoENT and NELSON WHITE, citizens ofthe United States, residing at Detroit, in the county of Wayne and State of Michigan, have invented certain new and. useful Improvements" in Adding-and Listing Machines, of which the following is a specification.

The present invention relates to that particular type of adding and listing machine in which more than one accumulator or set of adding Wheels is employed so that successive totals can be struck and at the same time a grand total preserved. Reference may be, had to the Swalm patent No. 885,202, issued further made for transferring an accumula tion; at will from either accumulator to the ether, and in the same operation printing the transferred accumulation Then any total of successively transferred accumulations canbe printed with or without leaving the wheels at zero;

I In evolving the present invention it has been the constant aim to produce an entirely ractical arrangement for performing such notions as above referred to, and so the manipulat on required of the operator is made-very simple, plain and direct, While at the Sametime safe-guards are provided to. prevent improper manipulation such aswould be productive of anomalous results in calculation. Thus a single manipulative device is provided such as a simple lever to be thrown to one extreme or the other of its movement, which device determines which set of accumulating Wheels shall come into play under control of theusua-l manipulating devices of an adding and listing machine such as the depressible amount keys and the special keys which are usually designated total, sub-'total, elimination,correction and repeat keys. Then an additional manipulative device, for examplea simple depressible key, will be provided for. somodifying the Specification of Letters Patent. Application fil ed October 5, 1908. Serial No. 456,272.

ADDING AND LISTING MACHINE.

Patented Apml 27, 1909.

action of the accumulator controlling mechanism as to provide for transferrmg an accumulation from one accumulator to another.

The safe-guards referred to take the form of interlocking devices to prevent manipulation when an operation of'the machine is under way and to revent operating the machine with control ing devices only partially nianipulated.

The invention is here shown as applied to an adding and listing machine of the well-. A

known Burroughs type as in the case of the Swalm invention above mentioned but it is to be understood that the invention is not necessarily limited to this particular application of it as its essential features might be incorporated in adding and listing machines of this or modified types.

In the. drawings which accompany and fonn part of this specification Figure 1 represents the machine in sectionalized left 'side elevation with all. parts at normal; Fig. 2

shows a fragmentary top plan view of thekeyboard with a certain controlling, lever in cross section; Fig. 3 isa vertical section taken fromcfront to rear of a portion of the machine illustrating transfer or carrying mechanism; Fig. 4 is a cross section taken substantially sectionalized left side elevations illustrating various conditions of the working parts ac- GOIdlII to the accounting function being performed by the machine; 11 is a partial sectionalized right side elevation of the machine illustrating certain special printing devices; Fig. 12 is a horizontal section on line 1212 of Fi 11; and Fig. sample of wor mount keys 291 of the usual arrangement are adapted as usual to displace latches 415 and release segmental racks 610 which have slotflnd-pin-and-spring connections with levers 611 loose on a central rock shaft 600 which carries a restoring frame or bail 613 to lift the front ends of .the levers. The rear ends of the latter carry the usual segmental series of amount type plates 618 adapted to be driven against a roller platen 17 on a shifting carriage 17 The said amount keys set stops'to limit the downward movement of the racks so as to bring the proper types to the printing line and provide'for correspondingly advancing adding pinions. In the present instance there are two sets of pinions 'on line 44 of Fig. 1; Figs. 5 to 10 are similar 13 shows an ex- 618 and 6l8 arranged in tandem, and the roughs lever though in the present instance f the depending arm 18 extended farther.

notch co-acts with the stud 958.

branches of the pitman are also notched to' racks 610 are made longer than usual so as to cooperate. with the pinions 618 as 'well as the pinions 618.

Each set-of pinions is supported in a rocking frame, the numeral 910 designating the left side piece of the-frame supporting the upper pinions 618 and 910 designating the left side piece of "the frame cumulator frame being designated 914".

Each of these pitmen is branched at the forward end somewhat similarly to the usual pitman employed in Burroughs machines,

ut the formation for, co-actionwith "the frame stud differs. Thus the lower branch of each pitman'instead of being simply hookshaped to engage over the front side of the lower frame stud is notched: so as to engage over both sides of the stud.

The reference letter w designates the notch of the pitman 914 adapted to co-act withthe stud 958 and the reference letter a; designates the notch of thepitman 914 ,.which co-act with studs 958 and 958 respectively, the reference letter y designating the notch of the pitman 914 and the reference letter the notch of the pitman 914 lneach case the rear side of the notch is made higher than the front side so that although the front side may be out of line with the stud the rear side.

can still cooperate with the stud.

The two pitmen above described are pivotally connected on a common center 914 to the depending arm of a three-armed lever 918 quite similar to the usual Burdownward and given a ii-formation along its lower edge to cooperate with a detannng arm 914 pivoted upon a stud on the main frame and ield to active position by a spring 914". The three-armed lever 1s rocked as usual byan arm 813 which carries at its upper end a springheld wipe pawl or plate 821 for cooperating alternately with studs 961 and 961 on. the forwardly and rearwardly projecting arms of said lever. in

the present instance besides the usual I downwardly-projecting portion of said arm 813 which cooperates with the locking lever 917, there is secured to the rock shaft 800 an additional arm or plate 813 which co The frame-piece 910 has inwardly The upper equipped for manipulation.

operates with a similar lever 917 the latter co-acting with the accumulator frame-piece 910 in the same .manner that the lever 917 co -act's with the accumulatorframe-piece 910*. .In :each case the frame-piece is "formed with the usual V-end 910 andthe looking lever has a similar formation and is g kept in engagement with the framepieces by springs 917 either of which will yield when the corresponding accumulator frame is rocked: Said locking levers aot as usual to frames and, to prevent rebound or undue movements thereof.

The it'men are connected by springs 914 with t e, three-armed lever 913, which springs tend'to' engage the notched upper branches" with the studs 958 and 958 respectively but normally, 2'. 6., when the upper accumulator is to be used for itemizing purposes, only the notch y embraces its stud enforce full movements of the accumulator 958, the pitman 914 being prevented from rising far enough to cause .its' notch uto embracethe stud 958 whichcondition is illustrated in Fig. 1 where the 11 per accumulator pinions 618 appear'in mes with the racks as the usual addin pinions of a Burroughs machine normafly stand. The

lower accumulator pinions 618 are on the contrary disengaged from they racks and so long as the p'tman 914 maintains the intermediate position shown in Fig. 1 said pinions 618 will remain so disengaged, the front side of the notch 12 being prevented from operating upon the stud 958 and the notch 23 being wholly above the stud 958. These conditions can be rever'sed by permitting the pitman 914 to rise and constraining the pitman 914 to assume the intermediate position as illustrated in Fig. 6.

Which pitman shall be free to engage its pinion frame and .rock the pinions back and forth while the other pitman occupies the -.intermediate position, is determined by the position of a lever 10 which projects through a'slot in the keyboard preferably to the left i of the amount keys where it is suitably .This lever is pivoted intermediate its ends upon a stud 11 which projects from the left hand side frame of the machine, said stud also supporting and guiding a slide iece 13 lying against the inner side of t e lever and drawn downward by a spring 20 which connects a stud 21 on the slide piece with a screw stud 17 entered through the lever and engaging a slot in the lower art of the slide piece as shownin dotted ines in Fig. 1.

(See also Fig. 5). At its lower extremity said slide piece carries a roller 19 long enough to extend over the upper edges of both the pitmen and these upper edges are so formed that when the lever is at one extreme position the roller will permit one pitman to maintain the elevated position and will hold the other depressed to the intermediate position, the spring being stronger than either of the springs 914 Thus the, pitman 914 is formed in its upper edge with a depression a and just in rear thereof with a raised portion u and the pitman 914* is formed'with a raised portion t in lateral alinement with the depression a of the pitman 914.

hen the handle end of the lever is rear- Ward as in Fig. 1 andthe lower end of the lever forward the roller 19 bearing upon the raised edge if of the pitman 914 holds the latter to the intermediate position hereinbefore described Whereas said roller being then over the depression a of the pitman 914 the latter is free. to rise and embrace the stud 958. On the other hand when; the handle end of the lever is forward as shown in Figs. 5 and 6 the roller 19 engages the raised edge u of the pitman 914 holding the latter to the intermediate position and said roller'having passed to the rear of the raised portion t of the pitman 91st the latter may rise to embrace the stud 958 as illustrated in Fig. 6. In either case itemizing operations can be carried on inthe. same manner as with an ordinary Burroughs machine, the set of pinions normally engaged with the racks being first moved out of engagement and so held while the racks descend and then being reengaged' and so held while the racks rise. The edge of the pitman 914 is rounded off andinelined where it rises from the depression to to the raised part a, and the edge of the pitman 914 is similarlyformed where it rises'to the portion i, so that the roller 19 will have an easy action when the lever is shifted to depress either pitman. A friction spring 12 is preferably mounted onfthe lever 10 just under the keyboard and by pressure on the lower keyboard plate is adapted to retain the lever in either adjusted position and guard accidental displacement, said lower keyboard plate being preferably recessed for engagement of the curved extremities of the spring. Provision is furthermore made for positively locking the lever in either of its adjusted positions oncean operation of the machine has started :mdamtil'such operation concludes. To this end a link or bar 14 is pivotally connected to the lower extremity of the lever and extends rearu ard above the shaft 800 and beyond the same where it is slotted to embrace a fixed stud 14 on'the frarw-work. This link 0' bar carries a curved locking block 15 adapted to cooperate with a roller 16 on a branch of the rocking arm 81.3. Normally the upper squared edge of the block is just below said roller so that the hand lever 10 can be moved back and forth. The rear curved edge of the blot-Isis normally ust forward of said roller and it results that '-.=-:hen an operation of the' lmtt'lllllO starts, the arm S13 rocklng rearvbe moved forward.

- key lever with the pitman.

ward, the roller 16 will pass behind the block 15 and so remain until just at the close of the operation hen the roller resumes its normal position. It follows that during the maehines operation the hand lever 10 cannot Neither can it be moved rearward during such operation after having been previously adjusted to the forward position shown in Figs. 5 and 6, because then the block 15 has taken up a position to the rear of the rol1er.16, the -atter passing down in front of the block uillprevent movement of i the hand lever.

The taking of a total from either of'the accumulators is done much as in an ordinary Burroughs machine, that is to say the pitman which has been moving the pinions hack and forth for itemizing purposes will l; e fully lowered so as to engage it with the lower stud of the accumulator frame with the result that the pinions remain engaged with the racks during the descent of the latter and are then disengaged by reason of the action of the pit man on the lower stud unless the wipe pawl 821 is disabled as hereinafter explained for the purpose of keeping the pinions engaged throughout the operation as when taking a sub-total. The means for so depressing either pitman are dependent as to adjustment upon the adjustment of the hand lever 10 and the pitmen are especially formed to provide for such depressiorrof either pitman without affecting the other. A li-ell crank total key lever 227 is employed of much the usual kind and there is a thrust ar 911 which performs the function of the link ordinarily used to connectthe bell crank total This thrust bar is slotted at its upper end to en'ihrace a screw stud s on the lever 227 and at its lower end carries a roller 9 which is long enough to extend over the upper edges of both of the pitmen. The pitman 914 has a raised portion a just forward of the depression a over which raised portion the roller 9 normally stands as shown in Fig. 1 and depression of the total key under such circumstances results in thrusting said pitman downward to the position shown in Fig. 9 which it will l-e noted brings the lower l-ranch of the pitman just forward of the notch 10 t bear upon the stud 958. The stud s has t on moved to the lowerend oi the slot in the thrust bar 911 and a flat spring 8, secured to the lever 22 7 and bearing upon a pin of the thrust ,lar; 1s flexed so that when the pitman moves for- Ward and the notch w is carried over the stud 958 the pitman will lie-thrust farther down, said flat spring being superior to the spring 914. he notch w being thus forced to embrace saidstud it is obvious that unless the disabling means heretofore referred to should come into play. the rearward movement of the pitman at the time the operating handle starts back, will cause the pinions 618 to be disengaged from the racks. The upper edge of the other pitman 914 drops off aliruptly in front of the raised portion t so that the roller 9 moves down without touching said pitman 91 However, if the total is to he taken from the lower accumulator the said roller 9 should of course act upon said pitrnan 914. Therefore means are provided for swinging the thrust bar 911 rearward when 10 the lower end of the lever 10 moves rearward. Said lever has abranch 22 with a roller stud projecting into a longitudinal slot of the tar 911. Consequently when the handle end of said lever is drawn forward and the roller-bearing end correspondingly swung rearward the thrust bar 911 will also he swung rearward. This is of course done while the total key is elevated and results in carrying the roller 9 over the raised portion 15 of the pitman 914E as shown inl ig. 6 and the movement is sufficient to take said roller above the depression u of the other pitnian 9 14. Consequently depression of the total key 2 5 will then result in lowering the pitman 91' without affecting the pitman 914 as illustrated in Fig. 5 and the same cooperation then takes place between the notched lower branch of said pitma'n 914 and the stud 958 as previously descrihed with refcronce to the notched lower branch of the pit man 914. and the stud 958*. Of course when the handle lever 10 is again moved rearward the roller 9 resumes position over the raised portion a of the pitman 914.

If the upper pinions (318 happen to be in .mesh with the racks at a time when it was desired to take a total from the lower set of pinions then disengaged from the racks, it would of course be necessary to disengage the upper 40 pinions and engage the lower pinions with the racks at the outset of the operation before the racks started to descend. The positioning of the hand lever 10 forward re sults in depressing the pitman 914 to the intermediatc position as already described, in which position the high rear side of the notch y is still behind the stud 958. Consequently the upper pinions will be moved out of mesh with the racks the same as in an itemizing 5O operation. Now the lower pinions being disengaged from their racks the stud. 958" would be standing directly in line with the notch a" in the lower .branchof the pitman 914. key would cause said pitman to embrace said stud with the result that the forward thrust of the pitman would not only disengage the upper pinions from the racks but rock the frame 910. so as to engage the pinions 618 with the racks at the outset of an operation and of course under these conditions the rearward movement of the pitman would disengage the lower pinions'from the racks at the middle of the operation. SoIin the case of desiring to take a total from the up- Consequently, depression of the total per accumulator when it happens to be disengaged from the racks and the lower accuinulator engaged with the racks as in Fig. 5, the rearward movement of the handle lever causes the pitman 914 to take up the intermediate position in which the rear side of its upper notch is still behind the stud 958 so that as the operation starts the lower accumulator frame will be rocked to disengage the pinions from the racks. The lower notch'w, of the pitman 914 is in line with the stud 958 so that lowering of the pitnran by the total key engages it with said stud and the upper accumulator will be rocked into engagement with the racks at the outset of the operation and out of engagement before the racks start to return.

when a sub-total is desired the total key lever 227 is not depressed by means of its key 265 but a second bell crank lever 227 is operated by finger pressure on a key 265 This has the same effect asrocking of the lever 227 by finger pressure on the key 265 for there is connected to the lever 227 a bar 216 which extends forward along the lever 227 and has a lug g which acts rearwardly against a stud on said lever 227. But operationof the ever 227 also has the effect of disabling the wipepawl 821 in its rearward position. To this end said bar 216 is formed with'a second lug 19 carrying a roller stud to act upon the upper end of a lever 32 which is pivoted intermediate its ends on the shaft 600. The lower arm of this lever is formed to swing against the stud 961 when the lever is rocked by the bar 216, and present an edge to the wipe pawl 821 which prevents said pawl ccoperating with said stud 961 see Fig. 8. A spring 34 normally upholds said lever 32 and a spring 216 normally holds the bar 216 forward and the key 265 elevated. It will be obvious that the disablement of the wipe pawl 82] at the rear position prevents forward movement of the pitmen and consequently when either set of pinions has remained in mesh with the racks during their descent it will not be disengaged when the racks ascend. I

' Elimination of an item from either accumulator when it is desired to print without adding, as when using a clorks designating number or the like, is also done by disabling the pawl 821 at its rear position and the same lever 32 is utilized to this end. The elimination koy265 is mounted on the upper end of a stem 34 which is suitably guided by slots in the keyboard plates and by a frame stud 34 engaging a slot insaid stem. Said key is normally upheld by a spring 32' connecting its stem with the same frame stud which supports one end of the spring 34 A stud 34 on the stem 34 extends above the spring-supporting arm of the lever 32 and when the key is depressed said stud will rock the said lever to effective posit ion. In

this case the adjustment of the machine is.

an itemizing one so that when the arm 81 3 reaches its rearward position neither accumulator is in mesh with the racks. ll-.e dlsablement of the wipe pawl by depression of said key will obviously cause the accumulater, which otherwisewould reengage the racks, to remain disengaged andthe item other it is necessary that the former shal remain engaged with the racks-during their descent and the other set of pinions then engage with 'the racks so as to be turned forward to the same extent that the first set of pinions has been turned backward and the atter should be disengaged from the racks before the return movement of the same sets in. To bring about such result a special key 265 is provided, the same surmounting the upper end'of a stem 40 which slides through the keyboard plates and at its lower end is pivotally connected to a lever 41 mounted on a suitable frame stud and branched in front of the same, the lower branch 42 extending under a stud 43 on th slide-piece 13 so that depression'of the key will result in lifting said slide-piece against the stress of the spring 20. branch 44 of said lever carries a stud 45 which extends in front of a nose 46 of the total hey bell crank lever 227, all as shown in Fig. 1, so that depression of said hey 265 also results in operating the total hey lever. Now'the lever 10 must be set to the lower accumulator position when the transfer is to be made from that to the upper end, and vice versa, must be set to the upper accumulator position when the reverse operation is to be performed. In Fig. 7 the parts are shown relatively positioned as when said hey 265 has been depressed at a time when the lower accumulator pinions were in mesh with the racks and the handle lever 10 forward. With said handle lever so positioned prior to depression of the hey 265 the pitman 914 would be held by the roller 19 to the intermediate position as illustrated in Fig. 6. But depression of said hey lifts said roller 19 and frees said pitman so that upon moving forward its notched upper branch may spring up into engagement with the stud '958 and draw the upper set of pinions into mesh with the racks when the handle of Depression the machine starts rearward. of the hey 265 by operating the total hey lever 227 has depressed the pitman 914 so as to disengage its upper branch altogether from the stud 958 and bring its lower branch to bear upon the stud 958 as shown in Fig.

7. Consequently, when this pitman 914 moves forward the lower pinions are not disengaged from the liLCliS but measure the downward movement of the same, and the' roller 9 over the pitman The upper lower notch of this pitman becomes engaged with the stud 958 so that said lower pinions will be disengaged from the racks as the handle of the'machine starts rearward. Obviously this results in the accumulation which was on the lowerpinions being passed to the upperpinions and the lower pinions being left at zero. If at the time it was desired to ass the accumulation from the lower, to tie upper set of pinions the latter happened to be in mesh, with the racks the lever 10 would first be thrown to the lower accumulator position and this would have 4 the effect of releasing the pitman 914 and moving the pitman 914 to the intermediate position, of course bringing the total key 914. Then when the key 265 was depressed the retraction of the roller 19 would release the pitm'an 914, thereby permitting it to relngage the stud 958, so that in the ensuing operation the upper set of pinions would first be disen gaged with the racks and then rengaged as in an itemizing operation, whereas the lowering of the thrust bar 911 would engage the lower branch of the pitman 914 with the stud 958 and cause the pinions 618 to be first engaged with the racks and then disengaged leaving them at zero and causing the accumulation to pass to the upper pinions.

Transfer of accumulation from the upper to the lower pinions comes about in much the same way. Assuming said upper pinions to be already in mesh with the racks and the lever 10 to be in the position for itemizing on said upper pinions depression of the hey 265 releases the pitman 914 and disengages the upper branch of the pitman 914 from the stud 958.with the result that the forward movement of the pitman 914' does not rock the upper accumulator frame so its pinions remain engaged with the racks during their descent, but as in .the regular totaling opera tion said pinions will be disengaged as the handle starts rearward. The other pitman 914 having been released its upper bfanch will engage the stud 95S when the pitman moves forward and so upon rearward movement will engage the lower pinions with the racks. In case the lower pinions happen to a be engaged with the racks at the time it is desired to transfer an accumulation from the upper pinions to the lower pinions movement of the handle lever 10 to the upper accumulator position would result in depressing the pitman 914 to the intermediate position and moving the total key roller 9 over the edge u c of the pitman 914. pression of the key 265 would release the 'pitman 914 permitting it to reengage the stud-958 and would depress the pitman 914 into engagement with the stud 958*, with the result that the lower pinions would first be rocked out of engagement with the racks and the upper pinions into engagement with the racks and then when the racks had descended distances measured in extent by the upper pinions, the latter would be left at zero and the accumulation transferred to the lower pinionsi In order to prevent depression of the subtotal key either when the total key has been directly depressed or drawn down by depression of the transfer key 265 the bar 216 is formed with an upstanding finger 216 in rear of which a pin 227 c on the total key bell crank lever passes whenever said lever is operated either directly or by the transfer key.

In order to prevent depression of the transfer key when either the total or subtotal key has been directly depressed the total key lever is connected by a link 52 with a curved locking arm 50 pivoted on a rock shaft 51. Depression of the total key rocks this arm rearward and downward and the upper branch 44 of the lever 41 has a stud 45 in rear of which said locking arm is adapted to pass.

here the accumulator controlling lever 10 projects through. the keyboard there is secured upon the latter a slotted index plate 60 (Fig. 2) which is suitably inscribed as with the words Upper counter and Lower counter alongside opposite ends of the slot. Whenever itemizing is to be done in the upper counter or accumulator or a to,

tal or sub-total taken from that counter or an accumulation passed from that counter, the lever should be positioned opposite the inscription Upper count-er. Correspondingly whenever itemizing is to be done in the lower accumulator or counter or a total or sub-total taken therefrom 01' its accumulation passed to the upper counter the lever should be positioned opposite theinscription Lower counter.

The carrying of tens is effected in each accumulator either when itemizing or receiving an accumulation from the other accumulator, through the same character of means as employed in the regular Burroughs machine though in the present instance one set of transfer pawls is utilized for both accumulatorsI The racks 610 carry studs 651 as usual normally engaged by laterallyturned portions 413* of, transferpawls 413 (Fig. 3), the latter being pivotally mounted and drawn forward against a stop shaft 295 by springs 413 which connect them with the usual latches 411. Said pawls are elongated to extend in rear of'both sets of pinions, there being a pawl for each vertically alined pair of pinions of the two sets. The pinions 618 carry disks f with "laterallynojecting studs f to act against inclined lugs f onthe.

forward sides of the pawls -113 somewhat above their lower ends. At their lower eX- trernities said pawls have inclined projections 9 to be acted upon by laterally-pro jecting pins 9 of disks g secured to the whichturning when disengaged from the racks by reason of their engagement with teeth of plates 926 mounted upon cross rods 926*, there being teeth at both ends of the plates, one set to engage with the upper pinions and the other with the lower pinions. rocking of the upper accumulator frame is limited by the abutment of a bifurcated portion 910 of the side plate 910 against the cross rod 205 and the vibrations of the lower accumulator frame are limited by one of the cross rods 926 which extends between a bifurcation of the frame side piece 910 as shown in Fig. 1.

' Listing of items and printing of totals is effected through the usual impression means which need not be described, being fully disclosed in the Swalm patent heretofore mentioned and in other prior patents re' ferred to in the specification of the Swalm patentf In the present instance provison is made for characterizing totals, sub-totals, transferred accumulations and eliminated items taken from one counter to distinguish the same from totals, sub-totals, transferred accumulations and eliminated items taken from the other counter. To this end as shown in Fig. 11 a special type carrier 70 is mounted on the shaft 600 to the right of the regular amount type carriers, this special type carrier having a segmental series oftype plates 618 each with two type faces, du licates of each other except that a line is below the character on one type face and above it on the other. Thus the upper type plate which is used to designate a total has two type faces each with a star and one with The a line below the star and the other with a line above the star as clearly shown in Fig. 11. So the next lower type plate has two type faces each with the capital letter S but the upper one having a line below the S and the lower one having a ine above the S. The next lower type plate has type faces, each with the letter T and the upper one with the line below the letter and the lower type face with the lineabove it. The lowermost type plate has two type faces eachhaving a number sign but the upper one'having a line below the number sign and the lower one having a line above the same. The types having the lines above the symbols come into play in connection with the upper accumulator and the types with the the. type carrier held up against spring 81.

"jeet laterally a series Furthermore when itemizing is going on the type carrier is prevented from moving by reason of the engagement of a stop pin on with the lower edge of a pivotally mounted upon a said plate being normally another cross shaft 207 by a The stop pin 75 is not mounted directly on the type carrier but on a sliding bar 76 slotted to embrace the shaft 600 and also slotted to embrace. a stud 77 on the type carrier. The position of this slide bar-determines whether or not in an operation other than itemizing, the special types having the lines above the symbols shall come into play or those having the lines below the symbols. When the slide bar is rearward the former come into play and when the slide bar is forward the symbols having the lines below them come into play. 'The position of the slide bar is determined by the adjustment ofthe hand lever 10. Said lever is connected by a link 90 (Fig-1) with an arm 91 which is seeuredto arock shaft 200, the latter at its right hand end having plate which is cross shaft 601 secured to it another arm 92 (Fig. 11') which at its lower end is pivotally connected to a link 93 which is slotted to engage the shaft 600 (Fig. 12) and is formed with a trans versely extending arc-shaped slot 94- to receive a roller 78 on the forward end of the slide bar 76. This arc-shaped slot provides for the up and down swingof the type carrier 70. It will be obvious that through the above-described connections the slide bar will be shifted whenever the lever 10 is shifted. 7

The plate 80 constitutes an indexing device for variously positioning the special type carrier, said plate having a segmental forma tion with a series of steps82, 83, in its rear edge alternating with each other. A bar 84 is pivotally connected to an upper part of the plate 80 and extends forward and is pivotally connected at its front end to an arm 85 swung from a shaft 200. On this bar there roof roller studs 86, 87, 88, 89. On the rock shaft 204 to which the total key lever 227 is secured there is also fastened at the right hand end a depending arm which is adapted to operate against the stud 86. on the shaft 206 to which the sub-total key lever is secured there is also fastened on the right hand. end a depending arm 9]. adapted (Fig. 1) which works in a slot 93 of an arm 94 to act against the roller stud 87., The transfer key stem 40 carries a stud 92 play in secured to a rock shaft 200 A right hand end a depending l I l i 1 carrying on its arm 95 adapted to act against the stud 88. The elimination key stem 34 has a cam rise 34 (Fig. 1) which operates against a roller stud 96 on a link 98 which is coupled to an arm 99 secured to a rock shaft 200*, which on its right hand end carries a dependin arm 99 for acting against the stud 89. Sai link 98 is suitably guided by a frame stud n projecting into a slot of the link and a spring 98 normally holds the link forward. The various arms 90, 91, 95 and 99 are graded in normal distances from their respective studs, the arm 90 being farthest away and the distanceslessening by degrees between the other studs and their arms, Consequently the said arm 90 moyes the indexing plate 80 the least distance and the other arms move said plate increasing distances. vfith the stop pin slide bar 76 forward as in Fig. 11 the arm 90 moves the plate 80 just far enough to bring the first step or shoulder 82 in line with said stop pin. i ith the stop pin slide bar moved rearward the same movement of the indexing plate will bring the first step or shoulder 83 in line with the stop pin. Of course it will be understood that when the machine is operated the type carrier is relieved from the restraint of the arm ,72 and will move upwarduntil stopped bycontact of its pin 75 with the plate 80. The effect thereforeof operating the machine to take a total when the stop pin slide bar 76 is forward would be to position the special type carrier with the upper,- most type at the printing line. has an accumulator identifying mark below-.- the symbol which would indicate that the total was taken from the lower accumulator. Shifting of the lever 10 to take a total from the upper accumulator thrusts the stop pin bar 76 rearward and so in then striking a total the type carrier would move far enough to bring the second type to the printing line.

. his type has the accumulator identifving mark above the symbol. The sub-total key arm 91 swings the plate 80 a st ep farther so as tobring either the upper or the lower type of the second type plate to the printing line, according to what position the stop pin bar 76 occupies. Depression of the transfer key causes the arm 95 to act a ainst the stud 8S and move the indexing p ate another step and depression of the elimination key causes the arm 99 to act against the stud 89 and move, said plate still farther, it being understood of course that the movement of the plate is the extent of two of the steps or shoulders which may be said to comprise two sets, those of one set alternating with those of the other.

- It will now be seen that the construction here'shown and described is well adapted to fulfil the objects primarily stated, though it is at the same time to be This type understood that combination of difiierentially reciprocatory racks; two sets of accumulating pinions independently engageable with and disengageable from said racks; plural means for ena in and disen a in the racks andint) o a a; r;

10 ions, said means severally adjustable to vary the periods of engagement and disengagement betweenra'cks and pinions; and means common to said plural means forchanging the adjustment of either.

2. In a machine ofthe class described, thev combination of differentially reciprocatory racks; two sets of. accumulating pinions independently engageablewith and disengageable from said racks; plural means for engaging and disengaging the racks and pinions, said means severally adjustable to vary the periods of engagement and disengagement between racks and pinions; and each means adjustable to disable it from engaging its setof pinions with the racks; and means common to said plural means for changingtheir adjustment.

3. In amachine of the class described, the combination of dn'ierentially reciprocatory 3O racks; two sets of accumulating pinions 1ndependently engageable with and disengageable from said racks; plural means for e'ngaging and disengaging the racks and pinions, sard means severally ad usta ole to vary gageable from saidracks; plural means for i engaging and disengaging the racks and pinions, said means severally adjustable to vary the periods of engagement and disengagement between racks and pinions and each means adjustable to disable it from engaging its set of pinions with the racks and one nor mally so disabled; means for enabling that one to engage its pinions with the racks and disabling the other from engaging its pinions with the racks; means for disabling the lastmentioned element of means to permit pinion-engaging action of the normally disabled member of the plural means; and means common to the said plural means for changing the adjustment of either of the latter to vary the periods of engagement and disengagement of its pinions and the racks.

' 6. In a machine of the class described, the combination of d-ifierentially reciprocatory racks; two sets of accumulating pinions independently engageable' with and disengageable from said racks; plural meansior engaging and disengaging the racks andpinions, said means severally adjustable to vary the periods of engagement and disengagement between racks and pinions and each means adjustable to disable it from engaging its set of pinions with the racks and one normally so disabled; means for enabling that one to engage its pinions with the racks and disabling the other from engaging its pinions with the racks; and means controlled by said enabling 'means and common to the the periods of engagement and disengage- 65' dependently engageable with and disensaid plural means for changing the adjust 100 ment of either ofthe latter to vary the periods of engagement and disengagement of its pinions and the racks.

7. In a machine of the class described, the combination of diiierentially reciprocatory racks; two sets of accumulating inions independently engageable with an disengage able from said racks, one set of pinions being normally engaged with the racks; means for disengaging said set of pinions prior to advance of the racks and reengaging them for the return movement of the racks; similar means applied to the other set of pinions which are normally disengaged from the racks; and a controlling device normally disabling said latter means from engaging its pinions with the racks but adjustable to permit said means to perform such function said device by such adjustment disabling the first-mentioned means from reengaging its pinions with the racks.

8. In a machine of the class described, the combination of diiierentially reciprocatory racks two sets of accumulating pin ons independently engageable with and disengageable from said racks, one set of inions being normally engaged with the rac s; means for disengaging said set of pinions prior to advance of the racks and reengaging them for the return movement of the racks; similar ment between racks and pinions and each means adjustable to disable it from engaging its set of pinions with the racksand one nori 'nially so disabled; and means for enabling 40 that one to engage its pinions with the racks and disabling the other from engaging its pinions with the racks.

4. In a machine of the class described, the combination of differentially reciprocatory racks; two sets of accumulating pinions independently engageable with and disengageable from said racks; plural means for engaging and disengaging the racks and pinions, said means severally adjustable to vary the periods of engagement and disengagement between racks and pinions and each means adjustable to disable it from engaging its set of pinions with the racks and one normally so disabled; means for enabling that one to engage its pinions with the racks and disabling the other from engaging its pinions with the racks and means common to the said plural means for changing the adjustment of either of the latter to vary the pcriods of engagement and disengagement of its pinions and the racks.

5. In a machine of the class descriaed, the

r combination of differentially reciprocatory racks, two sets of accumulating pinions inmeans applied to the other set of pinions.-

- ions with the racks; and means for adjusting either of thebefore-mentioned means to vary the order of engagement and disengagement between racks and pinions.

9. In a machine of the class described, the combination of differentially reciprocatory racks; two sets of accumulating pinions independently engageable' with and disengageable from said racks, one set of pinions being normally engaged with the racks; means for disengaging said set of pinions prior to ad- Vance of the racks and rengaging them for the return movement of the racks; similar means applied to the other set of pinions which are normally disengaged from the racks; a controlling device normally disabling said latter means from engaging its pinions with the racks but adjustable to permit said means to perform such function, said device by such adjustment disabling the first-mentioned means from rengaging its inions with the racks; and means controlled y said device for adjusting either of the beforementioned means to vary the order of engagement and disengagement between racks and pinions. s

10. In a machine of the class described, the combination of differentially reciprocatory racks; two sets of accumulating pinions inde pendently engageable with and disengageable from said racks, one set of pinions being normally engaged with the racks; means for disengaging said set of pinions prior to ad Vance of the racks and renga'ging them for the return movement of the racks; similar means applied to the other set of pinions which are normally disengaged from the racks; a controlling device normally disabling said latter means from engaging its pinions with the racks but adjustable to permit said means to perform such function, said device by such-adjustment disabling the first-mew tioned means from reengaging its pinions with the racks; means for adjusting either of the before-mentioned means to vary the order of engagement and disengagement be tween racks and pinions; and means for dis-' abling said controlling device to permit reengagement of either set of pinions for receiving the accumulation of the other set.

11. In a machine of the class described, the combination of difi'erentially reciprocatory racks; two sets of accumulating pinions independently engageable with and disengageable from said racks, one set of pinions being normally engaged with the racks; means for disengaging said set of pinions prior to advance of the racks and reengaging them for the return movement of the racks; similar means applied to the other set of pinions which are normally disengaged from the racks; a controlling device normally disabling said latter means from engaging its pinions with the racks but adjustable to permit said means to perform such function, said device by such adjustment disabling the first-mentioned means from reengaging its pinions with the racks; means controlled by said device for adjusting either of the beforementioned means to vary the order of engagement and disengagement between racksand pinions; and means for disabling said of either set of inions for receiving the accumulation of t 1e other set. 12. In a machine of the the combination of differentially reciprocatory racks; two sets of accumulating pinions inde endently engageable with and disengageab fe from said racks; rocking supports for the sets of pinions respectively; a pitman for each support adapted to engage the same on either side of its pivot; a movable controlling member adapted to hold either pitman in an intermediate position while permitting the other to engage its pinion-support on one side of the latters pivot; and a second movable controlling member adapted to disengage such other pitman from its pinion-support on the one side of the latters pivot and engage it therewith on the opposite side of the pivot.

13. In a machine of the class described, the combination of differentially reciprocatory racks; two sets of accumulating pinions independently engageable with and disengageable from said racks; rocking supports for the sets of pinions respectively; a pitman for each support adapted to engage the same on either side of its pivot; a movable controlling member adapted to hold either pitman in an intermediate position while permitting the othento engage its class described,

pinion-support on one side of the latters pivot;

and a second movable controlling member connected with the first adapted to disengage such other pitman from its pinionsupport on the one side of the latters pivot and engage it therewith on the opposite s de of the ivot.

' 14. n a machine of the class described, the combination of differentially reciprocatory racks; two sets of accumulating pinions inde endently engageable with and vdisengageabe from said racks; rocking supports for the sets of pinions respectively; a pitman for each support adapted to engage the same on either side of its pivot; a movable controlling member adapted to hold either pitman in an intermediate position While permitting the other to engage its pinion-support on one side of the latters pivot;

duri a second movable controlling member adaptling member for disabling the first-mentioned controlling member and operating the second controlling member. a

15. In a machine of theclass described, the combination of differentially reciprocatory racks; two sets of accumulating pinions inde endently engageable with and disengageabe from said racks; rocking supports for the sets of pinions respectively; a pitman for each support adapted to engage the same on either side of its pivot; a movable controlling member adapted to hold either pitman vin an intermediate position while permitting the other to engage its pinion-support on one side of the latters pivot; a second movable controlling member connected with the first adapted to disengage such other pitman from its 'pinion-support on the one side of the latters pivot and engage it therewith on the op osite side of the pivot; and athird contro ing member for disabling the first-mentioned controlling member and operating the second controlling member.

16. In a machine of the class described, the combination ofdiflerentially reciprocatory racks and type carriers; two sets of adding pinions independently movable into and out of engagement with said racks; one such set of pinions normally engaged with and the other normally disengaged from the racks, means for holding both sets disengaged during advance of the racks and returning either to engagement for the return movement of the racks; and means for bolding either set in engagement with the racks advance of the same, with rovisions f r lnltially engaging a normally isengaged set while disengaging a normally engaged set.

17. In a machine of the class described, the combination of differentially reciprocatory racks and typecarriers; two'sets of adding pinions independently movable into and out of engagement with said racks; one such set of pinions normally engaged with and the other normally disengaged from the racks, means for holding both sets disengaged during advance of the racks and returning either to engagement for the return movement of the racks; and means for holding either set in engagement with the racks during advance and return of the same, with rovisions for initially engaging a normally isengaged set while disengaging a normally engaged set.

18. In a machine of the class described, the combination of differentially reciprocatory racks and type carriers; two sets of adding pinions independently movable into and set of pimons normally engaged with and the out of engagement with said racks; one such {other normally disengaged from the racks, means for holding both sets disengaged during advance of the racks and returning either to engagement for the return movement of the racks; and means for holding either set in engagement with the racks during advance of the same, with provisions for initially engaging a normally disengaged set while disengaging a normally engaged set and for reengaging the latter set for the return movement of the racks.

19. In a machine of the class described, the combination of differentially reciprocatory racks; two sets of accumulating pinions independently engageable with and disengageable from said racks; rocking supports for the sets of pinions respectively; a pitman for each support adapted to engage the same on either side of its pivot for moving'it in both directions; a movable controlling merrber adapted to hold either pitman in an intermediate position while permitting the other to engage its pinion-sup ort on one side of the latters pivot to initia ly disengage its pinions from the racks and rengage them for the return movement of said racks; and a second controlling member adapted to disengage such other pitman from its pinionsupport on the one side of the latters pivot to prevent disengagement of the pinions from the racks, with provisions for effecting engagement of the pitman with the support on the opposite side of the latters pivot to disengage the pinions for the return movement of the racks, the said second controlling member when positioned to act upon the normally intermediately crating to engage the atter with its pinionsup ort to move the pinions into engagement Wit racks. i

20. In a machine of the class described, the combination ofrdifierentially reciprocatory racks; two sets of accumulating pinions independently engageable with and disenagcable from said racks; rocking supports l or the sets of pinions respectively; a pitman for each support adapted to engage the same 'on either side of its pivot for moving it in both directions; a movable controlling member adapted to hold either pitman in an'intermediate position while permitting the other to engage its pinion-sup ort on one side of the latters pivot to initia y disengage its pinions from the racks and reingage them for the return movement of said racks; and a second controlling member connected with the first adapted to disengage such other pitman from its pinion-support on the one side of the latters pivot to prevent disengagement of the pinions from the racks, with provisions for effecting engagement of the pitman with the support on the opposite side of the latters pivot to disengage the pinions for the return movement of the racks; the said positioned pitman. op'

second controlling member when positioned tory racks; two sets of accumulating pinions independently engageable with and disengageable from said racks; rocking supports for the sets of pinions respectively; a pitman,

for each support adapted to engage the same on either side of its pivot for moving it in both directions; a movable controlling member adapted to hold either pitman in an intermediate position while permitting the other to engage its pinion-su port on one side of the latters pivot toinitialy disenga e its pinions I -from the racks and r'engage t em for the return movement of said racks; and a second controlling member adapted to disengage such other pitman from its pinion-support on'the one side of the latters pivot to preventdisengagement of the pinions from the racks, with provisions for effecting'engagement of the pitman with the support on the opposite side ofthe latters pivot to disengage the pinions for the return movement of the racks the said second controlling member when positioned to act upon the normally intermediately positioned pitman operating to engage the latter with its pinionsupport to move the pinions into engagement with racks, and either pitman when in the intermediate position adapted to initially disengage its pinions from the racks.

22. In a machine of the class described, the combination of differentially reciprocatory racks; two stets of accumulating pinions independently 'engageable with and disengageable from said racks; rocking supports i'or the sets of pinions respectively; a pitman for each support adapted to engage the same on either side of its pivot for moving it in both directions; a movable controlling member adapted to hold either pitman inan inter mediate position while permitting the other to engage its pinion-support on one side of the ;latters pivot to initially disengage its pinions from the racks and rengage them for the return movement of said racks; and a second controlling member connected with the first adapted to disengage such other pitman from its pinion-support on the one side of the latters ment ofthe pinions from the racks, with provisions for effecting engagement of the pitman I controlling member. when positioned to act upon the normally intermediately positioned pivot to prevent disengage the combination of differentially reciproca tory racks; two sets of accumulating pinions independently engagea'ble with and disengageable from said racks; rocking supports for the sets of pinions respectively; a pitman for each support adapted to engage the same on either side of its pivot for moving it in both directions; a movable controlling member adapted to hold either pitman in an intermediate position while permitting the other to engage its pinion-support on one side of the latters pivot to initially disengage its pinions from the racks and rengage them for the return movement of said racks a second controlling member adapted to disengage such other pitman from its pinion-support on the one side 01' the latters pivot to prevent diswith provisions for effecting engagement of the pitman with the support on the opposite side of the latters pivot to disen age the pinions for the return movement oft e racks, the said second controlling member when positioned to act upon the normally intermediatel os'itioned pitman operating to engage tiie atter with its pinion-support to move the pinions into engagement with racks; and a third controlling member adapted to disable the first-mentioned controlling member and operating the second controlling member to cause the set of pinions disengaged during advance of racks to become engaged for the return movement of the racks.

24. In a machine of the class described, the combination of differentially reciprocatory racks; two sets of accumulating pinions independently engageable with and disengageable from said racks; rocking the sets of pinions respectively; a pitman for each support adapted to engage the same on either side of its pivot for moving it in both directions; a movable controlling member adapted to hold either pitman in an intermediate positionwhile permitting the other to engage its pinion-support on one side of the latters pivot to initially disengage its pinions from the racks and rengage them for thereturn movement of said racks; a second controlling member connected with the first adapted to disengage such other pitman from its pinion-support on the one side of the latters pivot to prevent disengagement of the pinions from the racks, with provisions for effecting engagement of the pitman with the support on the opposite'side of the latengagement of the pinions from the racks.

supports for ters pivot to disengage the pinions for the return movement of the racks; the said latter with its pinion-support to move the pinions into engagement with racks and the.

corresponding positioning of the first-mentioned controlling member effecting movement of the other pitman to the intermediate position; and a third controlling member adapted to disable the first-mentioned controlling member and operating the second controlling member to cause the set of pinions disengaged during advance of racks to become engaged for the return movement of the racks.

25. In a machine of the class described, the combination of differentially reciprocatory racks; two sets of accumulating pinions independently engageable with and disengageable from said racks; rocking supports for the sets of pinions respectively; a itman for each support adapted to engage t e same on either side of its pivot for moving it in both directions; a movable controlling member adapted to hold either pitman in an intermediate position while permitting the other to engage its pinion-support on one side-of the latters pivot to initially disengage its pinions from the racks and rengage them for the return movement of said racks; a second controlling member adapted to dis-engage such other pitman from its pinionsup port on the oneiside of the latters pivot to prevent disengagement of the pinions from the racks, with provisions for effecting engagement of the pitman with the support on the opposite side of the latters pivot to disengage the pinions for the return movement of the racks, the said second controlling member when positioned to act upon the normally intermediatelv positioned pitman operating to engage the latter with its pinionsupport to move the inions into engagement with racks, and elther pitman when in the intermediate position adapted to initially disengage its pinions from the racks; and a third controlling member adapted to disable the first-mentioned controlling member and operating the second controlling member to cause the set of pinions disengaged during advance of racks to become engaged for the return movement of the racks.

26. I In a machine of the class described, the comblnation of differentially reciprocatory racks; two sets of accumulating pinions mdependently engage'able with and disengageab e from said racks; rocking supports for i I mg the pitmen; and a controlling member the sets of pinions respectively; a pitman for each support adaptedto engage the same on either side of its pivot for moving it in both directions; a movable controlling member adapted to hold either pitman in an intermediate position while permitting the other to engage its pinion-support on one side of the latters pivot to inital y disengage its pinions from the racks and rengage them or the return movement of said racks; a second" controlling member connected with the first adapted to disengage such other 7 pitman from its pinion-support on the one side of the latters pivot to prevent disengagement of the pinions from the racks, with provisions for effecting engagement of the pitman with the support on the opposite side of the latters pivot to disengage the pinions for the return movement of the racks, the said second controlling member when positioned to act upon the normally intermediately ositioned pitman operating to engage the atter with its pinion-support to move the pinions into engagement with racks and the corresponding positioning of the first-men tioned controllmg member effecting movement of the other pitman to the intermediate position, and either pitman when in the intermediate position adapted to initally disengage its pinions from the racks; and a third controlling member ada ted to disable the first mentioned contro ling member and operating the second controlling member to cause the set of pinions disengaged during advance of racks to become engaged for the return movement of the racks.

27. In a machine of the class described, the combination of differentially reciprocatory racks; two sets of accumulating pinions inde endently engageable with and disengageab'e from said racks; rocking supports for the sets of pinions respectively; a pitman for each support adapted to engage the same on either side of its pivot for mov ing it in both directions; a movable controlling member adapted to hold either pitman in an intermediate position While permitting the other to engage its pinion-support on one side of the latters pivot to initia l its pinions from the racks and reengage them for the return movement of said racks; a second controlling member adapted to disengage such other pitman from its pinionsupport on the one side of the latters pivot to prevent disengagement of the pinions from the racks,.with provisions for effecting engagement of the pitman with the support on the opposite side of the latters pivot to disengage the pinions for the return move ment ofthe racks, the said second controlling member when positioned to act upon the normally intermediately positioned pitman operating to engage the latter with its piniqn-suppOrt to move the pinions into engagement with racks; means for reciprocat for operating the said second controlling member and disabling said reciprocating means as to movement of the pit-men in one direction. N A

28. In a machine of the class described,

y disengage erases the combination of differentially reciprocatory racks; two sets of accumulating pinions independently engageable with and disengageable fiom said racks; rocking supports for the sets of pinions respectively; a pitman for each support adapted to engage the same on either side of its pivot for moving it in both directions; a movable controlling member adapted to hold either pitman in an intermediate position while permitting the other to engage its pinion-support on one side of the latters pivot to initially disengage its pinions from the racks and reengage them for the return movement of said racks; a second controlling member connected with the first adapted to disengage such other pitman from its pinion-support on the one side of the latters pivot to pre vent disengagement of the pinions from. the racks, with provisions for eflecting engagement of thepitman with the support on the opposite side of the latters pivot to disengage the pinions for the return movement of the racks, the said second controlling memher when positioned to act upon the normally intermediatcly ositionedpitman op' erating to engage the atter with its pinion support .to move the inions into engagement with racks and t e corresponding 0 sitioning of the' first-mentioned controlling member eflecting movement of the other itman to the intermediate position; means or reciprocating the pitmen; and a controlling member for operating the said second controlling member and disabling saidreciprocating means as to movement of'the pitmen intone direction.

29. In a machine of the class described, the combination ,of differentially reciprocatory racks; two sets of accumulating pinions inde endently engageable withand disengageab e from said racks; rocking supports forlthe sets of pinions respectively; a pitman for each support adapted to engage the same on either side of its pivot for movingit in both directions; a movable'controh ling memberadapted to hold either pitman in an intermediate position while permitting the other to engage its pinion-support on one side of the latters ivot to initlally disengage its pinions from the racks and rengage them for the return movement of said racks a second controlling member adapted to disengage such other pitman from its pinionsupport on the one side of the latters pivot to prevent disengagement of the pinions from the racks, with provisions for effecting engagement of the pitman with the support on the opposite side of the latters pivot to disengage the pinions for the return move- -ment of the racks,'the said second controlling member when positioned tq act upon the normally intermediately positioned pitman operating toengage the latter with its pinion-support to move the pinions into engagethe combination of differentially reciprocatory racl: two sets of accumulating pinions independently engageable with and disengageable from said racks; rocking supports for the sets of pinions respectively; a, pitinan for each support adapted to engage the same on either side of its pivot for moving it in both directions; a movable controlling mem.

ber adapted to hold either pitman in an mte mediate position while permitting the other to engage its pinion-support on one side of the latters pivot to initially disengage its pinions from the racks and reengage them for the return movement of said racks; a second controlling member connected with the first adapted to disengage such other pit-man from its pinion-support on the one side of the latters pivot to prevent disen agemcnt of the pinions from the racks, wit 1 provisions for effecting engagement of the pitman with the support on the opposite side of the latters pivot to disenga 'c the pinions for the return movement of the racks, the said second controlling member when positioned to act upon the normally intermediately positioned pitman operating to engage the-latter with its pinion-support to move the pinions into engagement with racks and the corresponding positioning of the first-mentioned controlling member effecting movement or the other pitman to the intermediate posi tion, and either pitman when in the intermediate position adapted to initially disengage its pinions from the racks; means for reciprocating the pitmen; and a controlling member for operating the said second controlling member and disabling said reciprocating means as to movement of the pitmen in one direction.

31. In a machine oi the class described,

the combination of differentially reciprocaond controlling member adapted to disengage such other pitman from its pinion-sup:

port on the one side of the latters pivot to prevent disengagement of the pinions from the racks, with provisions for effecting engagement of the pitman with the support on adapted to disable the first-mentioned controlling member and operating the second controlling member to cause the set of-pinions disengaged'duringadvance of racks tobecome engaged for the retlirn movement of the racks; means for reciprocating the pitmen; and a controlling member for operatingthe said second controlling member and disabling said reciprocating means as to movement of the pitmen in one direction.

32. In a machine of the class described, the combination of differentially reciprocatory racks; two sets of accumulating pinions independently engageable with and disengageable' from said racks; rocking supports for the sets of pinions respectively; a pitman ber adapted to hold either pitman in an intermediate position while permitting the other. to engage its pinionsup ort on one side pf the latters pivot to initia ly disen age its pinions from the racks and rengaget em for the return movement otsaid racks; a second controlling member connected with the first adapted to disengage such other pitman from its pinion-support on the one side of the latters pivot to, prevent disengagement of the pinions from the racks, withprovisions for eflecting engagement otthe pitman with the support on the opposite side of the latters pivot to disengage the pinions for the return movement of t 1e racks, the said sec ond. controlling member when positioned to act upon the normally intermediately positioned pitman operating to engage the latter with its pinion-support to move the pinions into engagement with racks and the corresponding positioning of the first-mentioned controlling member effecting movement of theother pitman to the intermediate position; a third controlling member adapted to disable the first-mentioned controlling member v and operating the second controlling member-to cause the set or pinions disen gaged during advance of racks to become engaged for the return movement of the racks; means for reciprocating the pitmen; and a controlling member for operating the said second controlling member and disabling said reciprocating means as to movement of the pitmen 1n one direction.

for each support adapted to engage the same on either side of its pivot for moving it in both directions; a movable controlling mem ber adapted to hold either pitman in an intermediate position while permitting the other to engage its pinion-support on one side of the latters pivot to initially disengage its pinions from the racks and re-engage them forthe return movement of said racks; a second controlling member adapted to disengage such other pitman from its pinionsupporton the. one side of the latters pivot to prevent disengagement of the pinions from the racks, with provisions for erlecting engagement of the pitman with the support on the opposite side of the latters-pivot to disengage the pinions for the return movement of the racks, the\ said second controlling member when positioned to act upon the normally intermediately positioned pitman operating to engage the latter with its pinionsupport to move the pinions into engagement for each support adapted to engage the same on either side of its pivot for moving it in i both directions; a movable controlling memtrolling member and disabling said reciprocating means as to movement of the pitmen in one direction.

34. In a machine of the class described, the combination of differentially reciprocatory racks; two sets of accumulating pinions independently 'engageable with and disengageable from said racks; rocking supports for the sets of pinions respectively; a pitman for each support adapted to engage the same on either side of its pivot for moving it in both directions; a movable controlling mem' ber adapted to hold either pitman in an intermediate position while permitting the other to engage its pinion-support on one side of the latters pivot to initially disengage lts inions from the .racksand re-ngage them or the return movement of said racks; a second controlling member connected with the first adapted to disengage such other p1tman from its pinion-support on the one slde of the latters pivot to prevent disengagement of the pinions from the racks, with provisions for effecting engagement of the pitman with the support on the opposite side of the latters pivot to disengagethe pinions for

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