US893717A - Calculating-machine. - Google Patents

Description

PATNTED JULY 21, 1908.

J. G. WAHL. CALCULATING MACHINE. Nuon-Ion FILED 001228, 1904.

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J. C. WAHL- CALGULATING MACHINE.

APPLICATION FILED 00T.2, 1904.

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PATBNTED JULY 21. 1908;

J. c. WAHL. l GALGULATING MACHINE.

APPLICATION FILED 001228, 1904.

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lWinlaases: A v film No. 893,7l7. PATENTED 'JULY 21, 1908. J. C. WAHL.

CALGULATING MACHINE.

APPLICATION FILED OCT.Z8,1904.

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' J. o. WAHL. CALGULATING MACHINE.

APPLICATION IILED OCT. 28, 1904.`

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Invenur Jahn E. Wahl f In devices' of the automatically accomplish such calculations.

`which the following 'chinos for automatically per orming cnlcu device the-n automatic-elly f occurrence of mistakes, vthe 4maeliine beingl JOHN C. WAI-IL, OF CHICAGO, ILLINOIS, ASSIGNOR, BY DIRECT AND MESNE ASSIGNMENTS,

TO WAHL ADDING MACHINE COMPANY, OF CHICAGO, ILLINOIS, AICORPORATIONiOF ILLINOIS:

CALCULATING-MACHINE.

S-peeication of Letters Patent.

.Patented July 21, 1908.

Application ma octgber' za, 1904, semi No. 2`s`o,2`9s'.

.To all whom. if may concern:

Beit known that I, J'onN (l. VVAIIL, citizen of the United States, residing at Chicago, in the county of Cook and State ol' Illinois, have invented a certain new und useful Improvement in Culculnting-Machines, (Cesc 1,) of

is u full, Clear, concise, and exact description, reference being had to i the accompanying drawings, forming apart oll this specification.

My invention rebates to calculating devices and more particularly to (-.nlcultitinpT devices adapted for attachment to ty )ewritiinbr malations..

My invention is most ailapln'ble for calculations of 'addition or subtraction. It is a well-known operation in :irithmeticito check the result of an additional calculation by means of vertical and horizontal adding, the sums to be addedfieing arranged in vertical and horizontal rows, the horizontal''ows being cross-added and the vertical rows being added verticall and if the calculation is correct the tota of the cross-footings should agree with the total ofthe vertical footings'i prior nrt of this kind either only vertical addmg or subtracting could be accomplished or only horizontal adding'or subtracting could he done, hut by menus of my invention I am enabled to nccomplish both simultaneously, and thus am enabledto It will readily be vseen that my invention is of great importance in fir-counting for calculatmv the balance in debit and credit accounts. .Lily device is directly associated with the numberl keys of the typewritin'fr' machine, upon actuutionol" which the numliers will be printed upon the sheet and simultaneously recorded by indicators on the device and the accomplishes the desired calculation, thc resultol' which may be read from the indicators and printed' on the sheet, and I providemeans for reventing thus entirely reliable;

The device consists primarily of a plurality 'of indicator mechanisms or totalizers so arranged and connected with the typewriter attachments as to perform the desired celculations. A plum ity of rimary totalizers are erranged ina. horizonte row or series and` are mounted on a. traveling frameeonneeted vings of several sets wheels -around the number wheels in opposite direcwith thetraveling carriage ofthe typewriter.l

l As the keys of the typewriter are struck, this row of totalizers is moved-with the escapement of the cnrriitgeand the gear wheels of the totalizers have temp'omrT engagement with n stationary driving whee driving mechanism-With-the various numberkcys of the typewriting machine. -Upon actuzition of a number key, the driving wheel will be rotated a corresponding distance to move the enga ed totalizer .'vh'eel to indicate the number oli the keyectuatcd and this number is simultaneously printed on the sheet in the machine. The row or s eries may contain anynurnber of totsliz'e'rs and as they pass across the mecliin'e e' corres onding number of sumsm'ay printed andwillf-be registered. AWhen the, ttotali'zer of the series luis'been actuatedfthe ca -rrii'ige with the totalizer frame'is moyed to its initial poi sit-ion-nd the sheet dvmced one armere spacesend then ano ther o'wor series of sums may be struck oII onithet "peivriterj'and so on. It; will he seein thatveech .totalizer will accumulate the various sums and thus nt the endof the, .ca. totalizer, shows the vertical footing of the individual sums: which-lleve :been received thereb'y'angl thus far we hiive vertical footof s'uins'.- To derive the grand total of thesesums', I employ what r call an accumulator, which is mounted in a fra-me rigidly secured, to ,the typewriter frame'. This accumulator initially registers with the first of the primary totalizers and is adapted ,to duplicate the sum, whichwill be shownon theffirst primary totalizer. As the carriage with4 the primarytotalizers is moved, the accumulator trevels with each of the prima-ry totelizers until the sum desired is placed on` the primary totali'zer, when the accumulator is released and is'j moved back to engageythe succeeding primary totalizer and tocuprlgtively rec'eiye the sum placed on thfjsuceeedi to register with the thirdprlm'ary totelizer, and so on. This accumulator, therefore,\ :after the series hasA passed thereby will have cumulatively received all thesums impressed on the primary totalizers and, therefore, 1 05 `wi1l show. the cross-footing of thesesums.

On the lest totalizer of theseries the number are reversed; that is, they pass tion from that connected by: "'50 placed thereon; c'ulation, eachv so Prima y i totalizer, whereupon it is egem 'moved bac 100' on ther number.. wheels of the 11e totalin *grand' -totalizer com err intoj'r gister with Vtie accumulator-,Ethel drive wheel'is reversed in directionand thefoperator'plays on the'numhrk'e s ythe sum indicated on the accumulator;A he effeetof this will be 'obi the result beingfut'ter confusion. n myfdevice r t the indicatorsfare so uardedand'the att'aehr ments-'are so, adjuste [that upon anattempt i to move then'1'- lb'ey'ondvthe zero markt e '70 1 4typewriter ke'yii' fare` prevented from bei to impress this number'on the grand totalizer' actuated sufiieiently to -eause printing am and to restore the accumulator to zer0.f'- At' the end of one stroke of: the. typewriter ear riage, therefore, each 'primaryf'xv totalizer shows a sum and the'grand 'totalizer` shows the totalsum' of these individual sums, while'i The f'sheet in the `.a'ccumulator is at'l zero.

- t-he typewriter'rnaynow he advanced Yo neor more spaces and another horizontal row'of sumsis struck off on the number keys to he imprinted on the sheet in line with the previous s'umsthereonand'eaeh of the second sumsjwill be added tothe sum already shown on the corresponding primarytotalizel".`

the end of this stroke', the accumulated sum su ms may be printed and'at' Eendofthe' calf:

culation the primarytotaiizerswilljshow1th vertical footm of theregistering sumsan'd and tota izer will show thegrand The operator after; rope'rly spacing the Isheet eo'pies' on the riunr erkc-ys t the of a the sums.

e various Asums shown onthe primaryotal isere, rst, however, seeing that'tl ie directio f, the driving wheellis reversUd'Th'e er tical footin'gs then shewnfon" the totahze' will be printed op the aper, while tlie hm bei; Wheels of'the tota izers will hefretumed ing drawings, in which 1 to zero. The -aceuuinilater totaligner l ever,` eumulatlvely receive theI foo her keys the grand 'totali isplnyed' on the l means pre vent grand totalizer und the grund totalizer and the accumulator will hoth he returned to zero, and the device is then in readiness forl another calculation.

In calculating devices vin the prior art. dllileulty 1s experienced in performing the? being .returned leyond the zero mark', and

- vents mistakes this isof very reat importance as it pre oeing made, such as suh- IIYS' butf in areverse' direction; As the' ;fi'ariil 'totali'zefr now' registers Ywith the accumulator,

the operator again causes forward rotation of the driving wheel and co )ics on the num-fl also provide means "Other the wheels willbe locked upon reaching the zero marie- This immediately notifies the operatorjthat s'oiefmistake has beenlmade and it 'e'an beimmediatel corrected and. revented from'extending t roughthe calcu-4 ation. I.' z'i-,i l `i My device 1s a aptableffor 'operation'in connection with the tabulating attachment well known on typewritingmachines and this makes it unneeessa to begin with the first division, of the tota zers,but uponde#4 pression of. afcorrespondingtabulating key, the desired initial positioufof'the totalizer g5 may atpnce hej-'moved into engagement with the drive -v\'1\rh ee l. For instance', if itis desired to piint'l() ou the' sheet, it'is unneces- "sary be `nvwiththe-{irst,' "i.,.e., ,themillion positi th'typewriter, but u'pon def- 90 `pression ofgthe corres ondin tabulatiiigkey, i tlieften's. division of t le tota -zer will inlinediaftely beeomffdsposed before the drive @wheel and the ul'iibercan then be' struck on "thf keys.` By meanslfjthis couru-xelibri'with the'4 -tabulating mechanism, the-"totalizers may y'adjusted for anyfeblumnjonthe f sheetj."'f All these features require novel actuating mechanisms and arrangements thereof, 1 the construction en dfap"licatiouotwhieh will befbetter understoo( from the accompany- Figurel is a side eleyation'of a typewrita I l ing machine showing, the calculator attach 'ment associated therewith; Fig. 2 is a front elevation of thel typcwriting machine with the calculating mechanism attachedthereto, I l"ig. 3 is i`i side elevation ofia typewriting maelnc showing -the'- milc'u'lating `'attachn n1ent`parlglv in section, Fig. 4 is a dotar-hed view of the .calculating mechanism."handnetnating -tnechanism therefor, parts being` shown in section and parts heing hroken away, for clcarness, Fig. 5 is a front view ol' 115 the parts sho'wn in Fig. 4; Fig. 6 is a detached view of the calculatingldevice supporting har showing the arrangement thereon of the accumulator frame, Fig. 7 is an end elevation of Fig. 6, Fi 8 isa front elevation of thel 120 primary tota izer snip )orting frame, Fig!) ls an cnd elevation o iig. 8, Fig. l() is a detached view of the device supporting har and vthe ttalizer (rallies mounted thereon, Fig.

ll is an end view of Fig. l0, Fi l2 shows a 12;,

awl for engaging the accumu ator, Fig. 13 1s a side view of Fig. 12, Fig. 1 4 is' a front view showing tlie'latch har for adjustahly securing the primary totalizer fraine to the f5 tractingalarger umher roinasnmllor. ln {rin-k har connected with the typewriter 130 893,717 U machine curi-Lage, Fig. is a side View of turned to remove the pin 18 from the slot 19 Fig. 14, Fig. 16 shows the manner of mountand the carriage of the machine 'may move ving the pawls shown in l `ig.v12i0n a pawl without actuating the totalizer frame. For' shaft, Figs. 17, 1S and 19 show various relaadjusting purposes, which will be described 5 tive positions-of the primary totalizers and hereafter,-the frame 1() may be adjustably 70 the accumulator, Fig. 20 is a detached view engaged with an part of the bar 114 and for showing the manner of brakin y the idler this purpose the ower edge, of the bar is pro-l shaft, Fig. 21 is n view of the id er sup ortvided with teeth 20, 20, whose spaces correing shaft, Fig. 22 is a detached view o the spond with the escapement spaces of Ythe '10 adjusting rack for the tabulating mochantypewriting machine. A spring actuated 75 ism and the tops of the tahulatlng levers latch 21, shown in Figs. 14 and 15, is mount* Figs. 23 and 24 are detached views showing `ed on the frame 10 and has a tooth 22 for en l 'totalizer ratchet. wheels and pawls for prcaging between the teeth of the rack bar 11. venting return thereof beyonc the zero osind plates 23,l 24 extend from the support 1'5 tion, Figs. 25 and 26 are side views of i s. 10, in which are disposed horizontal shafts 80' 23 and 24, res iectively, and Fig. 27 is a e` 25, 26 and 27. The central 'shaft 25 carries tnched View showing a suitable attachment the actuatinggeanwheels 28 for the rimary between two actuating members, Fig. 28 is a' totalizers, the upper shaft 26 carries t enumplan W'ew of the parts shown in Fig. 23. ber wheels 29 secured t0 gear Wheels 30 for 20 Like reference characters refer to like meshing with the gears 28, while the shaft 2 7 35 parts throughout the various figures. carries dogs 29',` the function of which will 'be l have shown my device attached to the more "clearly, explained later. These doos A welLknoun Remington typewriter machine. may be pivoted to the shaft 27 between cdl-V g A horizontal supporting bar 1`is secured t0 lars 27'., 'as' shown` in Fig. 16.- hangers 2, 2, fastened tothe frame 3 of the' A frame"30 is rigidly secured to the sup- 9o typem'iter by means of screws 4, 4, as best Apoi-tin trackbarullby. means of'screws 31, l shown in Fig. 2. This frame has a'nupp'er 31, asestfshwn in:F1g. 51;. This frame has and a lower raccway or track 5 and 6, respecldo'xvvnwa'rdly extendingside walls 32, in l tively, 4adapted to be engaged by rollers '7 which are journaled slidingrshafts 33 and 34 30 and 8 pivoted from shafts 9 extending'from and a'relatively'--stationarygiidler shatg35. 95 i the back of the primary totalizer supporting End lates and'37jaresecured tothe slide i frame 10. The frame 10 is thus. adapted for ings afts 33.and-34 andthegear Wheels38, Il longitudinal travel along the track bar 1 and 381'1 of an' 'Yacc f the har 1 1 connects with this frame and with mounted'upon the -shaft 33, While the-number a bar 12 secured to the typewriter' carriage wheels 40 are-mounted upongegthe shaft 34, :10o which usually consists of a body part 13 and these nuriiber wheels haviriglgeafrs 41 for the relatively' movable part 13 for support.- meshing .with the' ea wheels 38... A helical. ing the type roller and sheet. This barv 12 s ) ring 4,2,is secure tothe sidewall 32 and to-` extends upwardly and rearwardly along the ythe movable accumulator f rame, preferably 4d sides of the typewriterfas shown, and at its to the end late 36 thereof, A .Y 5.- f rear endis secured to thebody part 13 ofthe One of tllie dogs29j 'before-'mentioned yis 'carriage by `1neans o`f screws `14. As' the mounted on the dogshaft '2 7. .at theright end typewriter carriage moves across the yrnaof ,each ofthe-primarycyclomefters 1n such c lne, the frame 10 is carried therewithand, position'that. as' the priinary. totalize'rs Aare owing to this manner of attaching the rod 12 moved with thetraveling carriage', the: corre- 11-0 to the body part of the carriage, thefront spondi'n'gdog will engage'the end iplate37 of part -13 of the carriage supporting the type the accumulator frame and will -carry the ac roller may he swung without in any wayin# eumulatori-with thee-Orres onding primary terl'ering with the tot-:ilizcers The end of the totalizer until theu'accumllator reaches' the- `50 har A1l is adapted for separable en affement other end oits sup orting frame, the 'corre- 115 with the lower end of thc har 12 unt t us the spending gear"wh'ee sof. the indicators beingl calculating attaclncnt may he entirely sepain alinement. At the en ofthe aecumulator rated from the typewriing machine, which stroke, the dog Will'bewi drawn and the ae.- may flu-n he used in its ordinary capacity. cumulator will bequcklyremoved-to its ini- For this [mrposc the. end of the har 11 is protial position by the helical spring into reUis- 120 vided with a cap 15, as shown in Fig. 27, havtration with a second primary totalizer, when4 ing a knurled thumb head 16. The end of another dog, corresponding to the second the har -11 has a groove 17, and a pin 18, exprimary totalizer, will engage the accumula- 'tcnding outu-'iirdly from the sleeve of the tor frame and again carry it to the end of its 6o head 15, also extends inwardly into enga stroke when it will again 'bewithdrawn to al- 125 ment with this groove. V 'lhelower end of 51e low return of the accumulator, and soon. lmr 1 has an elongated slot 19 for receiving The idler shaft-35 carries an idler gearf 43 the pin 1S and in Fig. 2th@ pin is shown -whic'h normally is in mesh with the first gear' within the slot to lock the har 11 to -the bar wheel of the accumulator, when the accumu` 65 12. 'l`o disengngc the bar 11 the cap 15 is latoris in. its initial position at the right of .its 130 'are moved with the carriage the gear /zulg/Orting frame, and as thcp'rimarv totalwheels thereof .are successively brought into mesh with the idler gear and thus connected 5 with the corres ending gear wheels of the accunulator as t e two devices are moved to /eihen Each do is pmvidedwinmtail 44 vbe movedaway extending throng this suptport. In the supporting track -bar 1 I provi ea longitudinal -groove 46 having gulding'edges 47,-.48 and 49,5()between which the tails of ,the dogs travel,V The edges 49 and 50 are lower than the edges ,47

'and 4S and when the tails of the dogs are be# tween the edges 47and 4 8, as shown in Fig.-

in Fi 1 8, thel tail of theongaging dogwill pass etween the'lo'wer edges 49 and -50,""as shown in 11 and the nose of the dogwill irom the'end152, allowing esi cape-of the accumulator; the end plate 37 of which is thenrereiv'ed by the dog corresponding to the second primaryv totalizer when it-is again carried to the end of itsV stroke and again released to be'env'agcd by the third dog, and so'o'n f Afterall the primary izers have beenmoved -Witli. thea'ccuinulator,

the ty pewriterA carriagemay be'inoved -ffits initial position andthe-primary totalizers are moved therewith past the accumulator. Un.

less some 'preventive means' be" provided, thedogs upon return"of the primary tot-alize'rs would engage the inner side of the end 52, forthereason thatthe tailof the dog -would enter between the higher edges 47,48,

which would cause the 1iose' ft.hereof 'tobe moved to engage the inner side of the 4end .52

andI thusl further return motion of the pri# mary totnlizer frame. would be preventcrh l,

therefore, extend the upperand lower edges 47 and '50 a distance bevond each otheras best shown in Fig. o, to forma widened guideway 53 .for th'r.` tails of the dogs, and I dispose a spring 54 in the slot. 46, which spring substantially acts as a yielding extension of the guidin odge 48.

I also connect the ends o'f the rn plates 36 and 37 by a bar 55. As the primary totalizers are now returned, the tails of the dogs are engaged by lllle'spl'inu which tends to movo the noses of the dogs rforwardly, but the bar 55 prevents such forward motionof the noses, a's best shown in 'F ig. 10, and guides them beyond the extension 52, when they are allowed to be moved forward, iirst by 'the action of the -spl-in 54, and then, by guiding edges 4) `and 'totnlizen the spring, as before stated,

lp( n a forward stroke ol' the primary a corresponding slot or -opening 45 throughthe support 1l) and ex# tending a slight distancebeyond the rear ofl '.'driving wheel is provided with geritee totali.

--nrm 71" is alsopivotedatits lower end to the sion 52 un accumulatrreaches 'tthe en d otite 'stro the 4 tails'of-thel dogs enter idingedges`49and 50. Any 70 'num fr ofi primary -f totalizers ma' sLbej-fmolnted row-.anda dog provided or4 eac I shall" x'1ow describel the driving ism associated-width the" keys ofthe ft writing machiae'foractuating the'tots l A supporting frame 56 is v.securedtothe bar 1 and extends downwardly, at its lower end being `rov'ided with forward ' extensions 57, 57, an rcerward'extensions 58758; A so U-'shap'ed'freme 59 is securedto the frame 56 below the totalizers and extendsgu lWardly' and forwardly,v ,At the endspf the liimbs 60 'and 60 of the U-shaped.l framef-s. journaled-a.

for eng vement with-lthef gear Wheels primary- "talizers- .l-,Asthe teeth of'ft .-talizerveamwheelsnustpassthrong teeth ofniirdrivingyhl .the fishes; 'extended a distance over' tlie"dge offth riphery in 'order v:that the totalizr 'gear may be readil''ffguidcd there' thedrive'whce fland the lirn 60'y fwheolsl and laresecured to the shaft' tocitl( 'ntl ier a'tclietjvl1eel64 beiig' l to tho teeth'onthe ratchctwheel 65. base-jolitlieflimbs 60 andGO are p o elongated slots (iQ-fin. which rides `a`s` lift An arm'f'68 is pivoted at one end tothe-s 67 and A'at its' Aother end is provided with pawl 6!) which normally is pcsscdfintol ei1 .g gement with the teeth. of then ratchet.- whoel 64 by means of a spring- 70.'.` Ase'c'on shalt 67 and at its u perend' terminates in a pawl 72,'y whi .h isa apted to be' held in enf. gagement wit 1 the teeth of tlie'ratchet'wheel A(a'rby the spring'73..-.`Arms 68, 7j 1.are 110 pivotally sup ortcd from the sluitv 61"" bye 'means of the inks GS and 71', respectively,"

shown in Fin. 4. "A shaft' 74"c'onnects"the ends of the fborward extensions l57 and arms at their other end on the shal'tf7ya'coil spring 76 secured to the shaft and to'foneo said extensions serving to normallyrotate "7 said shaft with said arms to hold the sha-ft 67 'and the Apawl'mechanism in an n )per posi- 120 tion. Upon rotation of the shaft 74,' the, arms 7 5 willbe actuated to movethe'shaft 67 downwardly in the slots 66 and; the direction of rotation of the drive wheel will be determined b the particular ratchetywheelen- 125 gaged b v tie corresponding pawll Thus, it the pawl (i9 is in engagement with the rgttnlwt u'l'wol '64, the top ol' the drive Wlwcl `travel equal distances at each impulse. Thenand -a reverse. rotation will result offthe indi.-

move forwardly'and if the pawl 72- engages the ratchet wheel 65 the drive wheel w rotate in an opposite direction. To control the engagement. of the pawls frame 77, p ivoted at 78 to the limb 60. 'lhe lever frame has an actuatinglcvcr 79 and two inwardly extending actuating finwers S() and 81. The pawl G9 is provided witn a tail 82 and the pawl 72 is ,pro vided witha tail 83: These .tails are disposed in the pnth ol' the' fingers .S0 and 8 1 and when engaged thereby.

. wheel (Hand upon rotation of the shaft 74 this ratchet wheel -will be rotated as shown by the arrow, andthe drive wheel will be correspondingly rotated, this rotation 'being transmitted through the gear wheels 2S and to the number wheels 29. This rotation .is also transmitted through the idler rear 43 and throughI the accumulator gear w eels to the-number wheels 40. The gear is'so arranged that the number wheels on the pril'v mary totalirers and on the accumulator the actuating -lever arm 7'9 is' moved to-its lower position, Vthe inger SOAwill engage the tail 8*.) and the. finger 81 will be removed from the tail 83' and thus u 'on P otationof` theshaft 74 only the ratchet w lecl 65 will be actuated cator number wheels. The fingers 8,0 and 8l arc sky-adjusted that when the lever arm 79 is in an intermediary position, both awls will be prevented from leaving the ratcuetwheels and thus the. shaft 74 will be' prevented from beingr rotated. I ,alsoV employ an additional lever frame. S4 pivoted at S5 at the end of the limb 60', This lever f'ran'ie has an actuating lever Sti -and an inwardly extending finger 87 which finger is'i'iormally out of engagement with the tails of rthe pawls. lVith the 'lever frame?? in its lower position and the pawl 69 disengaged upon engagement of the finger 80 witlnthe tail Si, thij/ lmi'cr frame S4 may be rotated upwardly niitil the finger 87 thereof engages-the tail Siof the iawl 72 to disengage this paul f ro-r'iiits rato iet wheel.l Uponactuation of `the shaft 74, there-will then be no rotation 'of the driving wheel as both the pawl's are' disengaged fr'or'n the'f'ratchetwheels. iThe shaft 67, however, With tl1e -Uponfurther; -upwardmotion of theframe 84 the 'pressure' pawl arins -is free to move.

ngerS' against thetail S3 will` be transmitted to the pawl arm.71 a'ndboth 'pawl arm-s with their pawls will be moved doWnwardly untilthe shaft t7' to which they with the ratchet .\vlieel. I provide a lever pivoted reaches the lower end of the slots G; andthe purpose of this will appear lat-er.

IIhe shaft 88 connects the ends of the rear extensions 58 and upon said shaft f :orresponding with the. positions of the number bearingY keys of the typewriting machine are secured actuating cam arms 89. Each actua-ling arm-terminates at its end in a cam surface El() and'a circular surface 9l'conc'entric with the axisof the shaft S8. Each actuating arm is adjustably connected with tl recorre-spendi n g number key as, for instance, bya turnbuckle 92, and upon actuation of any number key thc corresponding actuatingarn'i is rotated about the shaft SS. Secured tothe shaft 7 4' are a pluralit')7 of levers l'equa'l in number to the'aetuatmg arms SQ'and tothe number keys of the typewriter. These levers are disposed to be engaged .by the correspondingr actua-ting arms aildat their ends are provided .withkcam'rollers 94 for engaging the' cam surface 90iand the circular surface 9] Vof the actuating arms, -As best shown iii-Fig. 4, the actuating levers 93 are angularly displace-don the shaft'74 and this is for tlie purpose of allowingr 'ust sullieient engagement of thej leversby t eactuatingarms to cause just enough rotation of'the..vdrivlng'wheel" to 'give the associated totalizer number wheel a numberof-'impulse's equal to the number on-g the typewriter key actuated. Thus the lowest lever arm 93,-will be engaged by the correspondingx to cause t tance to give, the engaged number wheel one impulso as, 4for instanccfrom zero to l, and the upper actuating lever 93 will be engaged the corresponding actuating arm sulliclentlytocause rotation of the drive wheel` to give thee-ngagednumber wheel nine imp ulses, as, for instance, vfrom the posit-ion zero to 9 All4 the intermediate actuating levers are. corres ondingly actuated to give "actuatin arni'only sufficiently edrive w ieel to be: rotated a disloo the required Vnum er of impulses to a number wheel (".orrespondingr to the. number key actuated.

- It ver?r important, to avoid mistakes and confusion, that the ty )ewriter'mlnilicr keysA bc4 depressed thefull istanee in order to give the required rotation to the lever arlns and'to 'the drive` wheel. '.lf this were not done, other numbers besides those. de-v sired would appear o'n the cyclonieter and the numbers on the cyclometer and .the sh eet would not agree.. I, therefore, )rovide a 'wing 9'5 for each actuating arm, tac edge of 'which has teeth 96 disposed on a line concentric'with tlieshaft 88. ,A shaft 97 extends v 'between the,foiivardlextensions? at the base thereof and' onsaid shaft en -mounted datent `Vedfges 98, one for each actuating arm. A

T lifeend' o each wedge detent is vct'nnnected by a spring- 99 with the hub of the correspond-v ing actuating lever. .The sum of-'the distancc between the axis ofthe shaft 88 and the leaves the teeth at thebtherendbfjt 1,01 as above described 'teeth and thedistanceet en the axis, of .the shaft 9.7 and"'the'l'oi'nt'of;4 o wedg'e'QS is greatei'th'an the distance betweenaihe axes -of'tli'e sbatte .88 and 97, aii d, consequently, v5 when the det'ent'engagesftheteeth V9 6 the Yactuating'armcan be 'n iove'd nlyin one direc- A *'ltion.. The 'actuating arms 'are'cut awa. at

100 to receive the ends'f the detent 'to ovv' the 4arms tobe actuated h ie'ithijjdirectioni. y; 'Upon downward n iotion of an actuatinggar the 'corresponding dete`nt"ilifcdgJ tated downwardly and 'v v'ilI-ftlien) teeth 96 and will act as a' pavvlfoljp the retur'nof. the armuntil theyre,`

gm, #"2 9.5, and'- thus .escapementpof the' typewriter 'carriagc is' impossible'.ii'nles s` the actuated' arm is moved -to the end 'ofitsst'rkeandtbis insures prope'rja'ctu'ation ofthe levers 93:to

.'26 cause cori-eet'indication of-gtli'efcorije'sponding cyclonieterfvyheel' A180, 'tfoi 'revent'mistakes ai'isi from-'lost'l'iotionfs s lOl'iq the .surface 90 afm islighvtisee urface*91,"f thisrexten s'io additional f in'otioiilgof the ake'iip whateverlost motion' theremi'ght be.. ,As before ,feta ed, 'when thelac'tuating lever g's'in'isfntei'ilediar' visit 'bet-hpwls;

bf Ifvelldfrom caving- -lhif-LSOC.. td'r'athe. 'anlilie'r 'w1' be 11"0 r`0 'tation'of the-shaft 74 'whichshaft vvare setlieactugun Levers 93;; Illu .hiithlftis't ,.u'lwked' in nermbst'.; de itiop-,and u si prevent :thereby-ine @over i ewriteii'keys" jthis'manner, 'there- '.fore', t ekeys'ma'y locked against'in'terference inthe absenceof. the operator. Again,

upon-upward actuation f .thelever 86l the pawlaims'will be nioved ownwar. ly to rotate the Vshaft -74 and in this position t o .actuating levers -93 will be held `v., intheir uppermost' osition andclear of the actuatin Iarms an the typewriter may be usdwit but attua-tumoren@ z qtalizermecn .anism and u n'also'disnga'ginglthe rack 'bar'll from-'t ie arm 12 thetypeyvriter may be usedin its ordinary'capabltylfntirely 5'. de endent of the caloulatingapparatus. y means ofthe rackbarll ai'idthe'l latch plate 21, I am' enabled to 'setfthecalciji/lating mechanism with res ectto the starting point onthesheet' A's s own i'ri Fig. 2 the-start- 'tassa arms connected wi 6 3 ing point of the carriage'is 35 andin order that, the drive wheel register with the first gear-wheel' of the iirst 'primary totalizer the tooth of the 'latch plate.21 should engage the aduated latch bar at thedivision 85, as

83 s own, and thus whenever the carriage is brought back `to the pointjithe type- Writer scale therst gear wkn. of the first primary totali'zerwill be broiivlit-into enga e-' I ment with-the'drving whee As the ism ing key the carriage fr me wi taii between .the totalizer `gears are equal'v the escapement distances of the carriage.,

totalizer wheels after each es" 'be in mesh with the dii-ving' wheel. '1. A lo render it unnecessaryfor the operator 470 to strike -the sp'acing on the s acing barn of the typewriter to bring the totv izer to the columns desiredfl adapt'the totalize'r mechanisin f oizlactuatibn in conjunction `with the tabulating 'inetilianiism'which may be attolthe'typewriter. -1 and 22' show. a wellfki'iown form Iof tab ating mech,

the succeedin I,ariisin employedgjinconjunctionqiviththe type writer shown.f; The tab ulatiiig'keysv 102, ilozaiedisposed `in'zahorizontal-:row at the4 fronti of f 'the vmachine Land connectby: rods 1031Wth.leveis;10f1 ;pivoted at '-105'and'ter5 minating in` thei' r upper end escapement fingers 106. EEMoiinted on the traveling carof the typewriter'is a bar '107 provided writei'l- *Ther 'escap'emerit lfingers l 106 Aare t 'grbiipedtp-thg'frmofihis actuatingbamnd spaced to'correspgndwith'the teethlOS. f I'Abutments ,-10 9 a'.ierada tedf forV adjustable insertion in the teetlof t ie rack 107 and are spaced.theiem, to correspond with the spac- "iertgearsandthestartfz ing`poin f; 4 virritingni'acliiiie.` Thus' 95 the abutment 10'9,"is. secured in the position 35 on the rackbar. 1`07'and normally is lisposedone S` ace tothe left 'of the detent fin-, L gers..l-A s"s owniin Fig. 22, the operatorde--. sired to print a` sum'v 'beginning with theftens 100 columnpB-Iidshe, therefore, pressedthe correthe carrie ewes-released and 4moved to the 'she then strikesj-tlie-,kesto obtain the g- 1510 ,ures in the units'andf-.t

e decimal columns. Thus upon depressioii'of the roper tabulatilbe released to -assume the vroper pos tion so that the number actuate willappear inl the proper column'on-the sheet.'

To preventaccidental rotation of the totalizr gearsotherwise than upon Vactuation of the number keys, I provide brake mechanism for these gear wheels. Tolockor brake the gears of the accumulator, I employ a spring comb 110 secured to the rear upper cnds of the end plates and 37,itlie spring .teeth 11.1v extending upwardly and engaging toothed wheels ll2fV The friction'of these 125 springs ou the toothed wheels prevents idle oraccidental motion of the gear wheels and causes the gear wheels'to rotate a certain fixed 'distance atreacli impulse.- The lockin I. I. of the gear Wheels of the primary and gran' ist` ment at its end with the toothed wheel g5 plates 22% and 24. Springs 115, 115 main- 1 .tainlthe ends 117 et the levers 1nI cngagel mentwith the toothed wheels secured to the gear wheels. rlhe idler shaft 35 is provided with a toothed wheel 35 having the same number of teeth thereon4 as the idler4 gear wheel 48 on said shaft. A spring 36 secured to the frame 3() has fric-tional engaveand thus the teeth of the idler gear wheel 43 ure at all times maintained in position to allow ready passage therethrt'mgh of the totalizer gearteeth.

'.lo avoid confusion and mistakes, it is esi sential that 'the number wheels be not roativ'e result.

pawi next tated in a reverso direetion beyond the zero mark. This may readily happen in subtraction where an attempt, might unknowingly be inadeto subtract a larger from a smaller number and I provide means for'locking the typewriter against actuation upon such attempt. Sometimes in subtracting a smaller number from a larger it is necessary to sub traet a larger digit from a smaller-one; thus in subtract-ing 97 from .234 the "9 and f7l in the tens and units places respect-ivelyare larger than the 3 and "4 in the tens and units places respectively from which the said 97 is subtracted; but it can ne\ eroe'eur that a larger digit is subtracted from a. smaller ,one in the highest ordinal denominational place of said number for that would produce a neg- In other words,v it may someF times be necessary to rotate a 'ligure wheel reversely beyond zero but the figure wheel in tli'e highest ordinal" place must never be thus rotated. In order lto accomplish the above result each of the primary totalizer gear wheels has connected thereto a ratchet wheel 119. As the ratio of gearing between the totalizer geur wheels and the number n heels is here i shown as two to one, the ratchet wheels 119 are provided with two diametrically opposite pawl detents 120 adapted for engagement by pawls 121, also pivoted on the shaft 114 and held in engagement with the ratchet wheels by t-hc spring 122, vEach of said pawls has Va. shoulder 121 thereon which overlapsand restsupon the from itspvheel whenever said pawl next to the left.="1s

other, for insta-nce 9%, from 234, the -pawl the tens and units wheels; and these pawlswill .therefore not prevent the subtree-tive rotationof said tens and units wheels beyond zero-'rvvhich rotation is ieessary to su tract 97 from ,234. But sholiiit be attempA ed to subtract`297 from 234,.then the "2 -in the hundreds column could be subtracted, whereto the left, so that it isiretraetedA retracted. Thus whenever it is attempted to subtract one number from anupon the pawl in the hundreds columnlocks its cooperating wheel, and t-l1e-pawl in the tens column engages the tens wheel toprevent the subtraction of' the 97 from the 34.

Figs. 23 and 25 show the locking pawl and the ratchet wheel provided for the primary totalizer gears which it will be seen may be actuated forwardly in the direction of the arrow, but Whose .rearward rotation is raged by the, detents 12'0. Thus if one o said gears has been rotated forwardly to bring the engaged number wheel to, say number 6, if the o erator should attempt when the drivling w reel engages this gear wheel to depress the' key 7 when the driving wheel'is reversed ,l she can depress the lever 7 only until the pawl 121 engages the detent 120. This depression, however, is insufficient to allow eseapement of the carriage and she immediately knows that some mistake hasbeen made. The number'wheel, however, will return to zero but will be prevented from passing beyond .zero by virtuel of`this ratchet mechanism.

The last totalizer- 123 of the primary series has number wheels about which the numbersare disposed oppositelyto the numbers Von the other'p'rimary totalizer'wheels and the purpose of this will a pear inthe description of the operation of t1e machine which will appear herein laterf's* 4 Figs. 24 'and-26 showthe 'arrangement of' 1the ratehet'and pawl meehanism for prevent ing the number-'wheels'oflthe rand totalizer from being reversed beyondlt ie zeromark, this being accomplished in the saine manner as in the other primary totalizer;..wheels, the detents 120, however, being .reversed as ;shown`mFig.24lL i v Theoperationof my improved calculating device is new apparent. After-setting the totahzer frameto "agree'with the starting divlslonof the carriagef.- as shown m F10. 7

the' operator may proceed'to strike the numberl' keys to print the desired sums on the paper andthe totalizers will automatically performthe calculations desired, depending u on the adjustltent-s of the driving wheel. It) a lurality of s ms is .desired'to be added, the (Yrivig wheel will be adjusted to'rotate ina forward direction or in the direction as shown by the arrow in Fi 4 Suppose the operator desires t-o addltiiefollowmg nu'mbeiszst, 65o, 25, 32,.s0 and 1250.- irstv pressesthfe tabulating key 1 00 to bring the 1Q01eoluinn of rthe thst primary totalizer before the driving wheel and then successively depressiesA number keys- 2, 3 and 5. Duri'n this operation the carriage moves to the 'leA axd with it the rimary totalizer 1),. Through the'mediu'm o the do s vdescribed above, the 'accumulator @trave s with-the primary totalizer p, until the endA of its stroke wh it will be released andwill reg- She wat@

which will have moved into the V.osition via.-A

eatedb the totalizer 1),. I n or er that the i accumu ator may be released, it is necessary for. the operator toaccount for the decimal 2' g'jpoint space/and4 th'edecimal uros., For.

mstance,a fter striking-thehum er 2 35.sl1e must cause-:three more escapementsfof the carriage beforeJ- th'e' accumulator is released, -one.escapementcorresponding to the deci; lf'nml pointy'and the vother two to the' decimal iiguresjif-vtherefaxe any. Theoperator now -1n the same z manner actuates successively the numbers "6,715, and accounts for vthe d decimal numbers,where inulator will be again released to'reaiste withthe last or grand-'totalizer t. n wi'i be that thefumulawr has cumulatively receivedthe numbers 235 and 650 and vthe uinindicatedontthe accumulatorshculd o w,'therefore,b e 885, on. .i r ld-be the anni ofthe' nLI- 'hi'ch appear respectivily i. and i. The number.

grand totaltotalizers, and when to comes in registen with'the' fthe'operato'r Vreverses the rota'- LQ l1 driving wheel 63, by moving the tuatinglevei-JQ. downwardlly, as before described.' v L. She then Successive y de resses the actuatinglnumberkeys 8, 8 an 5. This operationjcau'ses the number 885 to a pear `jonthe "nd'totalizerbut'owing to t eare- 35.. versal o rotation', theaccumulator cyclpx x1e 'tergwill l 1 e ,l x"eversed and-will consequently.'

indicate.o2 The sheet'in the ty ewritei now shows a. horiztu'ital series of s m5,; th'e -rst ...,two thesums appearing respectofivelynthonmnv waterstand?. and,

""the 'last sum the crosslfodtmg, ortho `sum. appearing on the .grand totalizer. .The operator no w -moves the sheet forwardly one A' or more spaces 'returns the carriage to its initial osition'f at 35,'alsd' returning the 4actuating. ever its upper position 'to cause forward`-rotation of `the wheel. She then 'actuatesfjthetabulating key 10 and llows three further.- escapements to' account for -thedecimal point -and thedecima l fposi thans cwesz; the elim 3 2* 'also-:be a

:lato Hom thej-totalizer- 11,; and the.` accumu- ...the-gend- 4will be added to the 'cross-footing sum SSS cated o n the accumulator.

lt otalizer now comes infregister with the I accumulator,- the drivingwheel is again re-y sum 942..,alrea dy. ;j onl the grandi( totaler, .which -willvv then show the grandtotal "sum,

footings, which will-be` t c -sum total.

rotate, forwardly and A:to fprintg th e number 2272 appearing on t e greed fameuze -lat lato `zero and-all the' totalizersare then totalizer is again in register with thc accumu- -lator, the 4driving wheel is again reversed :md-

the keys 5 and 7 actuated. 'lhis will restore the accumulator to zero but ll1e.number.57

alreadyv thereonand the grand totalizcr will shouf-942: After this operation we have a second horizontalseries of numbers ap earing on-the sheet, namel 25, 32 'um the cross-footi sum 5T.` -T e driving wheel is c ausxd to rotateforwardly and in the same manneras above the sum is added to the number 260 a pearing on the totalizcr p which will then s ow 340 and will be indiso The sum 1250 will -be'added to the sum 682 already on the totalizer p ,which will show 1932 and tllesum 1250 will be added to Athe sum' 80 on the accumulator and the accumulator will slio\v .l33( As the grand 35 versed and thenumbcr 133() struck on the keysrand thisv numberv willbe added to the namely-,- 2272, 'while the :accumulatori will b. restored to zero.A [On the sheet-will a" ar a .third horizontal series-of sums'aline' elow,`` theltWQ 'Previous series and will contain the' 95" sumsqS'() .1250 and the cross footi ngfsum" 1330.41Lhe operator may-now print on the sheet the' vertical footings ofthe alined num-r bersfandthe v'ertical-footi s' ofthe cross;A

Leaving the driving wheel at the reverse, ehev moves the carriage-to its'initial 'starting position adpresses the tabulating key l100 to correspond tof the -=vertical footing jfnumber `340 appearing on the totalizer g- Upon striking 'these V numbers on the. eye, vthe totalizer plis restored to zero but the accumulator will -receive the sum 340 in negative direction and will show 660. vWhen the totaliz'er [i] registcrszwith the accumulator the operator f s'trikes the ynumber 1932 which appears on' this totalizer and the totalizer 'will also beprestored to zero but the num-- ber thereon will be added negatively to the number 89 660 the number of -9s in front, depending upon the capacity of. the totalizer a pearing on the accumulator,' which will ten show 97728. As the grand totaler now comes into register with the accu'mula- Jt'or,`the operator adjuststhe driving wheel to 120 then actuates the ke s r..\. Th isto eration will re-..

mi aimaient! 1.a..

" biais' while the cross-footings appear in the right columns. The vertical footings appear underfthe respective ,vertical columns, while the sum of they cross-footings, or the grand total, appear'sunder the right column and this grand total sum is equal 'to' the sum of the two-vertical footings, and the calculation thus checks.

. ber wheels ofthe accumulator may be read.

A shield 125 is provided "with'a Sl0t" 1`27for reading the indications on'- thenumber wheels of the primary and grand totalizers.

Ithus provide a'devce which isv adapted for ready and suitable attachment' toany typewritingmaehine, being very simple and compact and occupying verylittle space,

and not interfering 1n any way 4with the normal operations of the maehmem'Owing -to the small number of parts to be actuated,

.the additional pressure re uired .onthe number keys is barely -noticea le. I think it is broadly new with me to embody in a niachine means for simultaneously performing,r vertical and horizontal calculations. It is easily seen that a device of this kind must be very useful as, besides pci-harming the calculatious` described, thc device automatically checks itself and by means of tho various safety devices described, the.' machine. automatically prevents occurrence of mistakes. The o Jcrator at all times knows what is printed on the sheet by reading the indications on the various totalizers and the operator need only dis ose the given sums on the totalizors when t ie result. will he automatically worked out thereby and indicated thereon.

'As many modifications in the arrangement and construction of the various' parts employed may readily he made without. departi g from the spirit of the invention, I do not ish to limit myself to such construction and rangement as herein shown and described. vWhat I claim as new and desire to secure liiy Letters Patent is l. In a calculating machine, the combina- `ion with indicating mechanism, of a drive heel foractuating said mechanism,l actuatwith saiddriving Wheel;

ing means associated with said driving wheel,- adjustin means for said actuating mechan-l ism for-a lowing said drive Wheel to be actu--V ated in a forward or a reverse direction, means for locking said actuating mechanism to revent rotation of said driving wheel, ami) means for releasing said actuat' mechanism from said drive whe'oh wheildy said wheel is .inactiveV upon actumiion of said .mechanism. l f 2. In a calculating machine, thecombinawheel for actuating said. mechanism; vp

i and ratchet mechanism associated with said driving wheel, .actuating means for'said paw'l4 said pawl and ratchet mechanism to cause' 'and ratchet mechanism'to prevent actuation.. 4thereof and of said driving Wheel', and means mechanism Without causing rotation of said #driving Wheel. y.

3.- In a calculating machine,- thecombination with' indicating oa driving wheel f or actuatin lsaid indicating 'mechanism, ratchet; :.vvhee ,mechanism- 'f connected awl-` mechanism engagingf-f'saidfratchet w eel ,mechanism, "actuating .'meansy v for said pawl mechanism,i

pawl mechanism to said ratchetwheel mechanism to revntjrotation ofssidadrivin wheel, -means .fori'releasing said aw mechanism fronisaidratchet wheel mec anism whereby said driving wheel inactive upon actuation of said 'pawl mechanism.

4. In a calculating machine, the combination with indicating mechanism,v of a driving wheel for actuating said indicating mechanadjusting means for connecting both of said tion of said drivingzwheelgis prevented-upon actuation of said pawl arm actuating means,

driving wheel is inactive u said actuating mechanism.

5. In a calculating machine, the-combina tion with indicating mechanism, of a driving wheel for actuating said mechanism; a forpon actuation 'fof ism, ratchet Wheels associated with enig* tion with indicating mechanism, of a driving and ratchet mechanism, .means for adj usting' eitherforwardv or reverse "rotation, of 'Baid driving wheel, meansvfor locking'said-payvl for allowing actuation isaid pawl and ratchet means fol-adjusting said 'pawlmechanism to`l alloweither, forwardjori-revel'serotation 'of of said driving-Wheel,"."meansfr lockingsaid. i

, actuating l iiof sai d'pawls with the associated 12o pawls with the ratchet wheels whereby rotaand adjusting means for ',disengagmg both 'pawls from said ratchet wheels where )maid/1254 ciated ratchet -wheels, an adjusting lever 'ward and reverse ratchetwheel connected f with said driving wheel, a pawl for each of ,mento whereby rotation of sind driving wheel is 4 prevented, and additional means for removing i adapted in one position to remove one of said ward and reverse ratchet wheel: connected with said driving wheel, a-pawl for each of' said' ratchet Wheels, pawlarins eittending from said awls 'actuating mechanism connected with said arms, means tending normally to engage" said-pawls with the assoada ted in one osition to remove one of sairfpawls from he associated ratchet wheel, whereby-upon actuation of said actuating means said driving wheel is rotated in one direction, and means at another position of said lever for releasing said firstpawl from said lever and disconnecting the other pawl from said ratchet mechanism, whereby said driving wheel is rotated inan opposite direc# tion upon actuation of the awl arm mechanism, a third osition of saidy lever causing er1-'- gagement o both pawls with the ratchet wheels whereby rotation of. said driving wheel is prevented.

6. In a calculating machine, thecombination with indicating mechanism, of a driving wheel for actuating said mechanism, a forsaid ratchet wheels, pawl arms extending fromsaid iawls, actuating-mechanism connected wit i said arms, means tending normally to engage said pawls with ,the associated ratchet wheels, an adjusting lever ada ted in one position to remove one of said 4pawils from thea` associated ratchet wheel whereby u onactuation of said actuating means sait driving wheel is rotated in one direction, means at another position of said lever for releasing said first pawl from said lever and disconnecting the other pawl from ing wheel is rotated in an oppositedirectio upon actuation of the pawl arm mechanism,

a tliirdgiosition of said lever causing engagebotli lpawls with the ratchet wheels 0th said i of said actuating means. I

7. 'In a calculating machine, the combina` tion with indicating mechanism, of a driving wheel for actuating said mechanism, a forward and reverse ratchet wheel connected. with said driving wheel, -a pawl for each of said ratchet wheels, pawl arms'extending fromsaid avls, actuating mechanism connected wit said' arms, means tending normally to engage said `pawls with the asso ciated ratchet wheels, an adjusting lever pawls from said ratchet wheels whereby pawls from 4tho associated ratchetwheel whereby upon actuation of said actuating means said driving wheel is rotated in one direction, means'at another position of said riving wheel is inactive upon actuation.

lever -for releasing said first pawl from said lever 'and disconnecting the other pawl from said ratchet mechanism w'hereb said driving wheel is rotated in an o posits irection upon actuation of the 'paw arm mechanism, a

third position of said lever causing en age` from said awls, actuating mechanism connected wit said arms, means tending norfmally. to' engage said pawls withthe asso- "ciated ratchet wheels,. an 'adjusting' lever .ada ted in one osition' to remove oneof sai pawls-from t e associated ratchet wheel vwhereby upon actuationofsaid actuating `means said driving wheel is rotated in one direction, means at another position of said 'lever for releasing said first pawl from said lever and disconnecting the other pawl` from said ratchet mechanism whercb said driving wheel is rotated in an oppositev irection upon actuation of the pawl arm mechanism, al

third position of saidlever causing engagement of both pawls with the ratchet Wheels 'whereby rotation of said driving wheel is prevented, and an additional lever for disengaging one nawl romits ratchet wheel upon disengagement of the other-pawl from its ratchet Wheel by the first lever whereby said' driving wheel is inactive upon actuation of said actuating means.

9. ln a calculating machine, the. combination-with indicating mechanism, of adriving wheel for nctuatingsaid mechanism, 'actuating keys, mechanism intervening between said key; and said driving whech means upon actuation of said keys for causii'ig said actu ating mechanism to rotate said driving wheel in a forward direction, moans upon actuation of said keys Vfor causing saidactuating mechanism to rotate said wheel in a reverse direction, and means for causing said actuating mechanism to prevent actuation of said keys.

l0. Iii a calculating niaeliiiie,`the combination with indicating mechanism, of a driving wheel for actuating said mechanism, ac-

tuating keys, mechanism. intervening bctween said keys and said driving wheel, means upon actuation of said keys for causing said actuating mechanism to' rotate said driving wheel in a forward,v direction, means upon actuation of said keys for causingsaid actuating mechanism to rotate said`wheel in a reverse direction, means for causing said actuating mechanism t0 prevent actuation of.

said keys, and means upon actuation of said nation with ind wheel, and

actuating said keys.

l'or'-adjusting said c.

ses,

keys for releasing said intervening mechanl ism from said driving wheel whereby said wheel remains'inactive.

ll. .ln a calculating machine, the combiicating mechanism, of a driving wheel for actuating said mechanism, actuating keys, mechanism intervening be tween said keys and said drivin wheel, means upon actuation of said keys or caus ing said actuating mechanism to rotate said driving wheel in a forward direction, mcans upon actuation of said keys for causing said actuating mechansiin to rotate said wheel in. a reverse direction, means for causing said actuating mechanism to prevent actu tion of said keys, and'means for disconnecting said intervening mechanism ironi said keys.

12; In a 'calculating machine, the combination with indicating mechanism, of a driving wheel for actuating said mechanism, actuating keys, mechanism intervening between said lke's and said driving wheel, means upon actuation of said keys for causing said actuating mechanism to rotate said driving wheel in a forwardidi'rection, means upon actuation of said keys for causing said 'actuating mechanism to rotate said wheel in revent actuation easing said intersaid 'driving wheel y said wheel :remainsof said keys, means for'r'e v ening mechanism from liereb actuation of'said keys, and'meansfor-'disf connecting said intervening mechanism from I' 13. In a calculating, niacliine, the combination withindicating mechanism, of a driving'whcel f actuating lever,I clutchmechanism connecting said lever; with said driving wheel, means utch mechanism to cause said driving wheel, means utcli mechanism to cause' reverse rotation of ,said driving'wheel,`means for locking said clutch mechanism to pre'-v vent actuation of said lever and said driving wheel, and means vfor releasing said clutch mechanism wherel f said driving wheel is inactive upon actuation of'said lever` 1 4. In a calculating.machine the combiactuating lever pawl and ratchet clutch mechanism connecting with said driving wheel and said lever, said clutch mechanism t0 cause forward ro` tation of said driving wheel,f means for adjusting said clutchnieclianisin t0 cause rcverse rotation of said driving wheel, means for locking said clutch mechanism to prevent actuation off said lever and said driving n'ieans for releasing said clutch mechanism '}i`erel. y 'said driving wheel is inactive iipo i actuation of said lever.

` 15. In a ilr-,nhitiiig machine, the combiineans for adjusting 717 nation with indicating mechanism, of adriv ing wheel for actuatingv said mechanism,

l ratchet.' wheel mechanism connected wlth said driving wheel, pawls for said ratchet nected with s aid pawls, means for connecting one pawl with said ratchet mechanism to cause forward rotation thereof upon actuation of said lever, means for connecting said wheel mechanism, an actuating lever con- 7o,

other pawl to the ratchet wheel mechanism z to cause reverse direction of said driving wheel, means for connecting` both pawls with said ratchet wheel-mechanism to lock said driving wheel and said actuating lever, and means for disengaging ratchet wheel 'ing wheel is inactive upon actuation of said lever. i

16. In a calculatingr machine, the conibi-. nation with indicating mechanism, of a driving wheel for actuating said indicating mechanism, ratchet wheels 'connected with said driving Wheel, pawls for said ratchet wheels, arms extending from `said pawls, 'an actuating lever, arms e'xtendin from lever and connected with said pawl arms, ac tuation4 of said lever causing said awl arms and awls 'to be moved about said ratchet whees, means for adjusting 'said pawls to said driving-,'wheelj on ctuation said wth'said driving wheel, 'a pawl for each ratchet wheel, 4p awl arms extending from said pawls, an actuating leven-arms extend- -ing from said actuating lever 'and pivoted to said pawlarms, -mean's upon lever for causing one paw] to engage the forward iatchet wheel to cause for 'ard rotation of the driving wheel, means fo .l causing the other pawl to engage the reverse ratchet ing WheeL'and means for locking laid driving wheel and actuating lever against rotatiini.

18. In a calculating lin aeliine,'tlie e. i'ilf nation with indicating means, of a driving wheel for actuatingsaid indicating I. forward and rcv'er'sc atchct\`whccl conncctcd ..With said driving w1 ieel, -a pawl for -ea'ch l ratchet whcel, pawl arms/c.\',tcnding from said pawls, an actuating lever, arms extend ing from said actuating said pawl arms, means Lipon actiatio'n of said ever for c ausing'lone pawl to er| ago th'e forward ratd 'et wheel to'cause for'xvard rotation of the driving wheel,l meansfonkaiisin'g the other pawl vboth pawls of said g mechanism whereby said driv-` causeeither forward or reverse rotation of -said actuating 9g i actuation ofsaid lever witliiiugt uciiu singi'f1ce'iv forward and reverse ratchet wheel connected actuation ofsaid 'rio wheel to. cause reverse rotation= (if said driv- 1.15`

means,.a 12u lever a d'pivoted to 12.5

to eng 'gc theI reverse ratchet'lo -wheel and actuating lever against'rotaton,

and means f or allowing actuation of said lever without causing rotation of said driving wheel.

jingl wheel,

19. 'In a calculating machine, the combination with indicating means, of a driving wheel for actuating said indicating means, a forward and reverse ratchet wheel connected with said driving Wheel, a pawl for each ratchet wheel, pawl arms extending from said pawls, an actuating lever, arms extending from said actuating lever and pivoted to said pawl arms, means upon actuation of said lever for causing one pawl to engage the forward ratchet wheel to. cause forward rotation of the driving wheel, means for causing 'the other pawl'to engage the reverse ratchet,

wheel to cause reverse rotation of said drivmeans for locking said driving wheel and actuating l'ever against rotation and means for causin both pawls to engage the ratchet wheels w ereby said lever and drivin wheel are locked against motion.

20, n'a calculating machine, the combination with indicating means, of a driving wheel. for actuating said indicating means, a forward and reverse ratchet wheel connected with said driving wheel, a pawl for each ratchet wheel, pawl arms extending from said pawls, an actuating lever, arms extending from said actuating lever and pivoted to said pawl arms, means upon actuation of said lever for causing o ne pawl to engage the forward ratchet wheel to cause fom-ard rotation of the driving wheel, means for causing the other pawl to engage the reverse ratchetl wheel to cause reverse rotation of said driving wheel, means for locking said driving wheel and actuating lever against rotation, and means for disengaginfr both pawls from'said ratchet wheels wherehy said "lever ma be actuated without causing rotation of sai driving wheel.

21. In a calculating machine, the combination with indicating means, of a driving wheel for actuating said indicating means, a forward and reverse ratchetwhcel connected .with said driving wheel, a pawl -for cach ratchet wheel, pawl arms extending from sald pawls, an actuatmglever, arms extending from said actuating lever and pivoted to saidpawl arms, means upon actuation of ,said lever for causing one pawl to engoge the forward ratchet wheel to cause forwar rotaton 4of the driving wheel, means for causing 'the other pawl to engage the reverse ratchet wheel to cause reverse rotation of said drivln wheel, means for locking said driving weel and actuating lever against rotation, means for cansin both pawls to engage the ratchet wheels w ereby said lever and driving Wheelare locked against motion, and means for disengaging both p awls from said ratchet wheels whereby said lever may be, actuated Without causing rotation-of said drivim1r wheel.

22. lln a calculating machine, the comhi- I nation with indicating mechanism, of a driving wheel for actuating said mechanism, a

foiward and reverse ratchet wheel for said driving wheel, a awl for each ratchet wheel, pawl armsexten ing from said pawls, means tending to normally engage said awlswith extending from said actuating lever' and` ivoted at their ends'to the ends of said pawl -said ratchet wheels,'anA actuating ever, armsy evers, and an adjusting lever frame adapted- ;V

in one osition to disenga e from t e associated ratc said driving wheel is-rotated ina forward direction uponactuation of said lever, another osition of said adjustin frame cansing re ease ofisaid` rst pawian engagement of the second pawl with its associated ratchet one of said pawls-V4 ret wheel whereby wheel whereby said wheel isgrotated in a reverse direction up lever'. v

23.- Infa calculating` machine ing'wheel for actuatmgrsaidmechamsm, a'

.forward and reverse ratchet wheel for said driving wheel, a pa'wl arms exten tending to normally engage said awl f or each ratchet wheel,

awls with' said ratchet wheels, an actuating, ever, arms ext-ending from said actuating glever. and pivotcd at' thcir'ends to the ends of said paul levers, an adjusting leverframe adapted m one osition to discngave one of said pawls from t ie associa-ted ratclictwheel whereby4 said driving wheel is rotated in a forward direction upon'actuation of said lever, an-.

other position of said adjustin frame causing release of said pawl an engagement' of the second pawl with its associated ratchet wheel whereby said driving wheel is rotated in a reverse direction upon actuation of said lever, and moans at a third position of said adjusting frame for causing both jaWls to be engaged with the ratchet Whee whereby said wheel and lever are locked against actuation.

24. In a calculating machine, the combiietuationfot saiding from said pawls, means nation with indicating mechanism, of a driving wheel for actuating said'mechanisrn, a forward and reverse ratchet wheel for said driving wheel, a gawl for each ratchet wheel, pawl arms .extent ing from said pawls,.n1eans tending to normally engage said awlswith said ratchetwheels, an actuating ever, arms extending from said actuating 4lever and pivotcd atc their ends to the ends of said pawl levcrsjen adjusting leverxfrarne adapted in one osition. to disengave one of said pawls from t ie associated ratchet wheel whereby said driving wheel is rotated in a forward direction upon act-naties lever, mother position of said adjusting frame causing actuated without causing rotation of said drivin wheel.

25, n a calculating machine, the combination with indicating mechanism, of a driving wheel fora'ctuating said mechanism, a forward a d reverse ratchet wheel for said driving whee'h .a4 awl for each ratchet wheel, pawl arms extending from said pawls, means tending" to' normally engage .'said awls with said ratchet wheels, an actuating liever, ar'ins extendin from said Aactuatinglever and pivoted at t iei'r ends tothe `ends of said pawl levers, an adjusting frame ada ted4 in one l position to diseiig'age one of sail pawls from Position o f said adjustin the as'soc'iated ratchet wheel whereby saiddriving wheel is rotated in a forward direction upon actuation of saidlever, another fr frame causing reea'se of saidfirst pawl and engagement of the second vpawl with its associated ratchet 'wheel whereby `said driving wheel is rotated in a reverse direction upon actuation of said lever,

means at a third osition of said adjustin frame for causing )oth pawls to be engage.

j w-ith the ratchet wheels whereby said wheel and lever are locked against actuation, and

ari-additional adjusting frame for discngaging lone of said pawls from its ratchetb wheel u on disengaveinent of the other pawl by said iist lever whereby said levei" may be'actuated without causing rotation of said. driving wheel. v

26. In a calculatingr machine., the combination with an indicating mechanism, of a driving wheel for actuating said indicating mechanism, .clutch inech'anisinjor saidd ijiving wheel, an actuating shaft,le' it/mechanism connecting said shaft'witlil'saiihclutch mechanism, an actuating arm extending from said actuating shaf t, Oa c am arin for engaging said actuating arm, and a key connected with said cam arin, actuation of said key causing said cam arm t0 engage the. lever arin wliereb said actuating shaft is rotated and said cli'itching rnhanisin actuated to' cause rotationiof saidtdiiving wheeln 27. Ina-calculating machine, the cbnibi nation with indicating mechanism, of a driv ing'wheel for actuating'said indicating mechanism, cli-itch mechanism for said driving wheel, an iwtuating shaft, lever mechanism connecting said shaft with said clutch nicchanisin,.an actuating arm extending from said actuatingr shaft, iicam arm for engaging said actuating arm, a key connected with said caln arm, actuation of said key causing said cani actuating shaft is rotated and said clutchin lactuating arm, a key'A connected with said cam arm, actuation of said key causing said .cam arm to engagethe lever arm whereby said actuating shaft is rotated and said clutching mechanismact'uated to cause rotation of said driving wheel,-n1eansasso`ciated with said clutch mechanism for reversi fr the rotation of said driving 'whe'el', aiid means for locking said clutch mechanism to" prevent actuation of said driving Wheel and said actuating mechanism.

29.. In a calculating machine', the combination withindicating mechanism, of a driv ing wheel for actuating said indicating mechanism, clutch mechanism for said driving wheel, an actuating shaft, lever mechanism connecting said shaft with said clutch .mechanism,' an actuatingarm extending from said actuating shaft, a cam arm for engaging said actuating arin, a key'connectedwith said cam arm, actuation of'said key causing said lby said cam arm'without causing rotation of 'said driving Wheel.

30, In a calculating machine, the combination with indicating mechanism, of a driving wheel for actuating said indicating incchanism, clutch mechanism for Said driving wheel, an actuating shaft, lever mechanism connecting said shaft with saidclutch mechanism, an actuating arm extending from said actuating shaftfa cam arm for engaging said actuating arm, Aalleyconnected with said cam arm to engage the lever' arm whereby said actuating shaft is rotated and said clutching mechanism actuated to cause rotation of said driving \\'liecl,-nieans associated with said clutch mechanism for reversing the rotation of lsaid driving wheel, and means for locijng said clutch mecl'nn'iisin to prevent actuation of said drivingr wheel and said actuating mechanism, means tor releasing said clutch mechanisln from said driving wheel whereby .said actuating shaft muy be TOM-tod arms -being angularly disp aeed on said actuating shaft whereby equal actuations of said actuating arms will cause the rotation of said actuating shaft to correspond to the angular displacement of the actuated cam arm, said driving wheel being rotated a distance cor'- responding to the angle of rotation of said actuatin shaft.

32. nation with indicating mechanism, of a driving wheel for actuating said mechanism, clutch mechanism associated with said driving wheel, an actuating shaft, levermechanism connecting said shaft with said clutch mechanism, cam arms secured to saidshaft and extending therefrom, and an actuatinglever for each cam arm having a cam surface for engaging the end of the cam arm, the ad?. justinent of said cam arms and actuating levcrs being suoli that equal actuations of said actuating arms will cause different angular= rotations of the cam arms wherebv said driving wheel is given a different angular dislaceincnt'upon actuation. of each of the diferent cain arms.

33. In 'a calculating machine, the combination with indicating'mechanism, ,of 'a driving wheel lfor actuating said indicating mechamsm, clutch mechanism for said driving wheel, an actuating shaft, lever'mechanism connecting said shaft with said clutch mechaiusm, rotation of said shaft causing actuation of said clutch mechanism to rotate said driving wheel, angularly displaced cam arms secured to and ext c nding 'from said actuating shaft, and similar actuating arms pivoted to a shaft and having cain surfaces forengaging said cai'n arms, rotation of an actuating arin causing rotation of the engaged cam arm corresponding to the angular displaceinent of said rain arin, thc corresponding rotation of the driving shaft causing said clutching mechanism to inovc said driving Wheel a corres ionding angular distance.

i 34. In a calculating machine, the coinliination -with indicating mechanism, of adriving Wheel fonactuating said indicating nicchanism, clutch 'mechanism for said driving Wheel, an actuating shaft, lever mechanism connecting said shaft. with said clutch mechanism, rotation of said shaft causing actuation of said clutch mechanism to rotate said driving wheel, a cani arm secured to and exn a calculating machine, the combitending from said actuating shaft, an actuat ing arm having a cam surface for engaging said cam arm to cause rotationof said actuating shaft and a corresponding rotation of said driving wheel, means tending to return -said actuating arm to itsnormal position upon .actuation thereof, and detent means for preventing return of said actuating arm tance.

35. In a calculating machine,- the combi-` until said arm has been rotated4 a fixed dis- A nation `with indicating mechanism, of a drivj ing wheel for actuating said indicating I nechanism, clutch mechanism-for said .driving A.

wheel, an actuating shaft, lever mechanism connecting said 'shaft with said mechanism,

rotation of said shaft causingactuation of said clutch mechanism to rotate said diving wheel, a cam arm secured to and extending from said actuating shaft, an actuatin arm having a cam surface for engaging sai cam arm to cause rotation of said actuatshaft and a corresponding rotation of said' 'ving wheel, means tending-to return said actuating arm to its normal'position upon actuation thereof, andI pawl andjratchet mechanism for preventing the return of said arm until said arm has beenrotateda ixed distance.

A 36. -Iiia calculating machine, vthe combi-i nation'with indicating mechanism; of a driving wheel for actuating said indicating mechl anism, clutch mechanism for said driving f wheel, 'an actuating shaft, 'lever mechanism connecting said shaft with said clutch mechf anism, rotation of said shaft causing actuation of said clutch mechanism to rotate said j driving wheel, a cam arm secured ex` Y tending from said actuating shaft, an ac tuating arm having a lcam surface for en aging said cam arm to cause rotation of sai ,actuating shaft and corresponding said driving wheel, means' Vn to return said actuating arm Ito its normal position upon actuation thereof, teeth on said actuating arm', and adetent for engaging said teeth. upon forward rotation of said actuating arm and' for preventing 'return of said arm until said arm has been moved forwardly suffirctation ,of"

ciently to allow escape of said detent from said teeth.

37. In a calculating ina'chine, the conmination with indicating means, of a' driving wheel for actuating said indicating means, clutch mechanism associated witlis'aid wheel, an actuating' shaft, lever mechanism connecting said shaft with said clutch mechanism, rotation o'f said shaft causingrotation of said driving Wheel, angularly displaced cam arms secured to and extending from said shaft, an actuating lever for each cam arin having a-cam surface'for engaging said cam arm,said levers-be similar and pivoted in a straight line to iiniaft, means upon' rotation f said actuating arms in a forward direction4 tending to return 'said arms, and de-

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