US1269993A - Combined type-writing and computing machine. - Google Patents

Description

W. WRIGHT. COMBINED TYPE WRBHNG AND CUMPUIING MACHINE. APPucAImN FILED 0m. I912.

l ,26 9,993 Patented June 18, 1918.

3 SHEETSSHEET I.

3/ w W t 3 W. WRIGHT.

COMBINED TYPE WRITING AND COMPUTING MACHINE.

APPLICATION madam. 8. I912.

1,269,993. Patented June 18, 1918.

3 SHEETS-SHEET 2.

W. WRIGHT. comsmen TYPE wmnm; AND COMPUTING MACHINE.

APPLICATION FILED 0CT.I,19.|2. 1,269,993.

a SHEETS-SHEET 3.

.carrics a platen on which the writin UNITED STATES PATENT OFFICE.

WALTER WRIGHT, OF NEW YORK, N. Y., ASSIGNOB TO UNDEBWOOD GOMPUTING MAOHINE COMPANY, OF NEW YORK, N. Y.. A CORPORATION OF NEW YORK.

COMBINED TYPE-WRITING AND COMPUTIDIG MACHINE.

Specification 01 Letters Patent.

Patented June 18, 1918.

Application flied October 1, 1912. Serial no. mass.

To all whom it may concern:

Be it known that I, vAL'I'ER Wmorrr, a t'lllZLll of the United States, residin in New York city, in the county of New State of New York, have invented certain new and useful Improvements in Combined Type-Writing and Computing Machines, of which the following is a specification.

This invention relates to combined typewriting and computing machines, particularly those which are adapted to do computing in a number of different columns. This application refers to matter covered in several prior applications. among which is application No. 543,603, filed jointly by Gustave Degencr and myself, February 12,

1910, and an application of Gustave 0. Degener. No.- 754,709, tiled March 17, 1913; also my Patent No. 1.162.730, dated November 30,191. To the overlappin subject-mattcr of slwhapplications and t e present application, I make no claim per se, and only intend toclaim in this applicatiomsueh combiuatirc relations as the new parts disclosed in the present application over such aboveineutioncd applications, combine with the old features to perform in the aggregate new results.

As herein illustrated, this invention is applied to a combined typewriting and computing machine of the IJIXdQI'WOOCl-VI'lght type. in whichthe carriagcof the typewriter sheet is placed. This platen. as in an or inary typewriter, has a letter-feeding motion and" is arranged in said motion to control the sma'atim connection between the numeral keys of the typewriter and the computing" wheels of the computing mechanism proper.

For this purpose in said combined ma-.

chine the computing wheels are mounted in a totalizer. and the master-wheel is connect ed to said carriage to be moved thereby, so

as to engage the computing wheels in said totalizcr sc-riufim. For computing in several columns tabulator stops may be. provided which are arranged to automatically estab lish and let go said connection between the ork and This connection typewriter carriage, and every time the typewriter carriage carries a stop past said hook, it automatically catches the book by means of the stop and thereby causes said master-wheel to be moved by the hook for predetermined distances. A cam on the hook may be arranged to ride under a stud and force said hook free of said stop when beyond any computing zone.

he present invention is illustrated as applied to such a computing machine having a plurality of totalizers separately connectible to the numeral keys. For the purpose of varying the nature of the connections between the numeral keys and the computing wheels, the stops may be provided with projections, which, in the trayel of the typewriter oarriage, are arranged to shift a.

clutch or clutches in the gearing between said wheels and said keys. Each of these cause the master-wheel to rotate the computing wheel's-sothat they add. in another po sition may rotate them so that they subtract, or the clutch may be absolutely neutral, as the case may require. The stops may control each clutch separately by means of cam arms hungin the typewriter frame, which arms are drawn by springs to engage said stops as the stops travel with the typewriter carriage.

In order to avoid noise and wear of the parts, and to reduce the amount of shifting of said clutches, the operation of a tabulating key may also always shift any clutch into one selected position and hold, it there until said key is released. As'mostcomputing is in the form of addition, it is convenient to cause a clutch to be always held at its adding position, unless moved to some other position by the controlling stops. The clutch-controlling arms preferably are in their outermost position when they cause the a clutch is avoided.

Other features and advantages will hereinafter appear. r x

In the accompanying drawings,

Figure 1 is a. diagrammatic'side view of an Underwood -Wright typewriting and com utin machine, showing my invention app ied t ereto.

Fig. 2 is a perspective view of some principal parts of the computing mechanism.

F ig, 3 is a section through a totalizer. Figs. 4 and 5 are respectively plan and perspective views of the connection between the tabulator stops and the totalizer.

Fig. 6 is a detail of the same. Fig. 7 is a erspective view showing some arts especia ly connected with the present invention. i

Fig. 8 is a rear view of the same. Fig. 9 shows various combinations of antomatic stop-controls.

Numeral keys 1 and letter keys 2 of the typewriter de ress levers 3 to cause bell cranks 4 to swing type bars 5 upwardly and rearward] against the platen 6, so that type 7 wil write on a work sheet thereon. Said platen is mounted in a carriage 8, traveling on rails 9 and 10, and said carriage is drawn forward in letter-feeding direction by means of a spring barrel .11, and is controlled in said letter-feed by means of an escapement wheel 12, carrying a ratchet wheel 13 which works in a rack 14 connected to the carriage. Said escapement wheel is to controlled by means 0f dogs 15 and 16, which dogs are operated by an extension 17 of a universal member 18, which universal member is operated by heels 19 on the type bars as they rise toward the laten., 85

arranged to operate the computing mechanism escapement, which is m the nature of an indexing or valuating mechanism acting to cause the numbers written to be carried into the computing wheels. For this purpose each numeral key is engaged by a link 20 (Fig. 2) depending from a bell crank 21, which bell crank is'joined by a ,link 22 to the computing escapement proper.

46 When the key 1 is depressed, it draws link 22,

so as to cause the lever 23 to thrust forward a digit determiningjack 24 and projects a in 25 from the computing, eseapementor va uating or index wheel 26. At the same I time a universal disk 27 is drawn backward at the head of said link 22, so that the lever 28 rocks the link 29'controlling a secondary escapement, and said secondary escape'ment comprises a star-wheel 30, which has been holding the escapement wheel .26 against revolvmg by means of a pin 25 thereon, which had been previously projected.

The escapement wheel 26 constantly tends to be turned by a motor 31 through a friction slip clutch, not shown,,bevel gears 32, 33, and a shaft 34, which shaft has fast to it a bevel gear 35, meshing with a bevel ear'36; an

s aft carrying turn meshes with a gear wheel 38 fixed to Each numeral key asit 1s depressed is K said bevel gear 36 is fast on a a gear wheel 37, which inthe escapement wheel 26. As the link 29 s moved forward at the depression of a numeral keg, itlallows the on aging tooth of a secon ar escapement w eel 39 fast on the shaft 0 star-wheel 30 to escape est a dog 40, so that it strikes a dog 41, an on the return stroke of said numeral key, said tooth 39 escapes from the dog 41 and allows the escapement wheel 26 to carry around its pin 25 which hasheen bearin against the star-wheel 30, so that sai escapement wheel 26 can turn until the pin 25, which has just been pro'ected by the jack 24, strikes the succee ing tooth of the star wheel 30. Said esca ement wheel 26 is then held a ainst revo ution by means of a second toot 39 of the secondar escapement wheel, which has been broug t around to bear against the dog 40 when the pin 25 strikes the tooth of the star wheel 30. As the motor 31 turns said escapement wheel 26, it turns the bevel gear 42, which is constantly in mesh with the bevel gear 36 and will, through shaft 43, turn the vertical shaft 44 by means of-bevel rs 45 and 46, and in so doing will cause t e num her then written and computed or indexed, or valuated, by the *escapement wheel 26 to'be carried into a totalizer 47. The projected pin 25, which has been previously engaging-the star-wheel 30, is returned by a cam wiper, not shown herein, after it passes said wheel.

In the machine herein shown, there are two totalizers 47, which may be identical and the description of one will answer for both. In each of said totaliizers 47 there is a series of computing wheels 48 (Fig. 3), which are arranged to be engaged seriatz'm by a master-wheel 49 lying within said com- Euting wheels and arranged to becarried ack and forth within said wheels to enga e them serv'atim in a manner presently to described.

wheel 48. said master-wheel is arranged to be turned by means of a square shaft 50 on which it is slidably mounted, and said shaft extends through the frame of the machine at 51 where there is fast on it a bevel gear 52, meshes with bevel gears 53 and 54 on shaft 44, and may be clutched to be turned by one of them in a manner to be hereinafter described. Said master-wheel, as will be seen, comprises a hub 55, which is freely rcvoluble in a sleeve 56, which sleeve, however, moves said master-wheel successively into engagement with the various computin wheels. For so moving it, there is provi ed on the carriage 8 of the typewriter a rack bar 57 carrying settable lo 58,

which lugs are arranged to successive y enage, as seen in Fig. 5, a hook 59 comprising a notch 60 in which said lugs rest when moving it.

When engaged with any computing 110 i Said hook 59 is formed as the end of a sliding-rod or in the casing 62 fast on the typewriting machine. Projecting down wardly from said rod through a slot 63 in the casing, is a pin 64 engaging one arm of a lever 35. which is pivoted between its ends at 66c of which lever the two front arms 67 and 68 engage computing carriages 69, of which carriages the sleeves 56 controlling the seriatim engagement of the masterwheels form a part. This lever 65, as seen from the rear and above in Fig. 4, is normolly drawn to the right by means of a spring 70 anchored in theframe of the mal5 chine, and in such position holds the master-wheels 49 in a position to engage the highest \;ll(tl..ifl each of said totalizer's. From such position it'is drawn by means of the hook 59, as above described. so that atelach letter-space movcment'of the typewriter it moves the master-wheels to engage step-by-step with the rariouscomput 111 wheels. e

Vhen said hookbfi has drawn the inasterwheels so that they engage with the units computin whcels,-.the. cam end- 71'of;t he hook isc'aused to release sa'idhook fromthe log 58 bystrikinga pin 72 fast on the frame of theniachine', under. which pin said hook is drawn until it swingsdownwardclearof the stop '58; and "then iis drawn backward to 'the highest computingfwheclby the spring 70, Said book 59 is held upward in position where the next lug 58'will strikeit by ineans of a 5 ring. 73jbearing against a screw 74 enters in a socket in the frame of the typewriting machines j Thelcver 65 is slotted at each endwhere it engages the --pins 64 and 7 5, the latter ins bingfthe means by which it is eonnecte to the carriages 6b. which causes step by stcp movement of themaster-wheels. Eachiionipnting carriage 69 comprises. in "addi'tion'f to the sleeve 56'. a sleeve 76. which embraces a rod 77 fast on the frame oftlietypewriting niachinc'ai'id carrying in its opposite end a cross midis." which cross rod also supports the'onter end of a rod 79, said rodi79fnibraced by the plate 80 forming thennionbe tween the sleeves 56 and 76 of the master: wheel carriage.

WhciL returning the carriage. 8 .to begin a ncw line ofavrilflinggif. iheohookfilis in ngagement with one of the lugs 58, it s carriedtoiheleftin Fig. 5 until the (-ain c'dge slj'tiufl flfl strikes a stud or roller tl'2, -whic hm y he pivoted on a screw 83 threaded int-o the top, of the boss 84 on which thcscrew .83 is mounted. andby means of said roller, the hookis rammed doivmvardlv and released from the lug 58. The spring 73 immediately raises'the hook. and thelugs 58 in, Hu ToSSiOlrridl' freely overa bevel or point H? on the tip of thchoolt, thcnlast lu in the series being caught and heldby when the carriage begins 10 run in letterfceding direction.

The totalizer 17 comprises a asing 86 (Fig. 3) through a sight opening 87 in whi h nmnerals of the dial wheels 88 may brread. Earl] dial wheel is constantly in mesh with an external gear 89 of its computing wheel 48. and said computing wheel carries intern l teeth 90, as seen in Fig. 3. arranged to he engaged by the teeth 91 of the master-wheel 49. Each computing wheel also is constantly in mesh with a erury-over wheel 912' comprising three different forms of Ieelhf (if these forms of l'ceth,'onc'set 93 constantly meshes with the gear 89 of the computing wheel 48, so as to turir'isaid wheel when the carry-over wheel is turned one units space by the computing wheelnext lower in .denomination. Each computing whecli also "comprises a special tooth. not shown herein, which is g-rranged to strike a tooth '94 on the carryover wheel geared to the computing Wheel next higher indenomination, and givdhat carry-over wheel a slight. turn when the zero of the computing wheel turns Ito tlic'sightopcniiig 8'1. In giving said I wheel this slight turn. it moves it so that hte'eth95 of the third form on said computingwheel engage resilient roll 96, which is power drirem' and said roll completes"the turningof illt'"('fl1'l' V-O\'tl wheel its onennit space. Said rcsilientroll. 96 is drivenhy a gear wheel 97 meshing with a gear fa'st .on it. which gear wheel 97 in turn is driven by a pinion 98 fast on its shaftQantl. said pinion is driven by a gear wheel SH) fast on "a shaft 100, which is geared to the motor through a bevel gear 101. as will he prcsentl y described.

It has been stated that the wheels in the totalizer may he turned either to add or subtifa'rt; and for this purpose on the shaft 44 which drives aid wheels as described above, "there is formed a clutch 102 for each totalizer .fcomprisin a member 102 slidably 'splm'ed on said shaft 44 and arranged to lock 54o! the lower bevel g ars 53. which nervl gemsiturnloose on sai'dshaft. The clutch nember' 103, for this purpose. may be shifted by neans of a handle 11H pivoted at 105, and im an extension of said handle is formed a. series of notches um arranged to engage a detent IQ? and hold said clutch member in gwhatercrposition it may be placed. When luimll efltH- and its clutch member 103 is in its uppermostposition as, shown in conneciion with Ihctop totalizer in Fig. 1, the compitting wheels thereof will be rotated for addition; while if the handle and clutch is internally with either the upper bevel gears in an intermediate position. the computing wheels of the associated totalizer will bc'unaffected by the rotation of the shaft 44; but if the handle 104 IS in its lowermost position,

th s book as in connection with the bottom totalizer in so as to shift sai Fig. 1, thenthe shaft 44 will drive the computing wheels sen'atim, through the aid of themaster wheel'49, in a subtracting man-. ner.

For enabling the power-driven resilient roll 96 of the carry-over mechanism to be reversed simultaneously with the reversal of the master-wheels, a set of clutches is provided for the carry-over mechanism similar to those provided for the master-wheel.

relation with the, she t 109, which mesh with the gears 100 to drive the ru 'ber tenscarrying rollers v96 alternativel in opposite directions to correspond with t e ad ingor subtractin rotation of the associatedmester wheels. shaft-109 is driven from'the motor 31 bymeans of a bevel gear 110 fast on said shaft 109, a bevel gear-111m v therewith, which bevel gear is fast on a sh 112 ca 'n a bevel r. 113 meshing with abevel E114 fast ii shaft 34.-

, The age 58, which have been above do.-

. scribed as connecting the master-wheels to A a sim' that writer carriage so that they have erably formed as extensions of ,tabula stops 115 also mounted on the rack bar 5 Said tabulating stops are arranged to cooperate with key operated plunger etc of the usual Underwood typempcra from keys 117 at the ,front of the keyboard,

"mounted on levers 118, pivoted at 119, which levers carry said plunger stogs at, their rear ends 120; Each of said'ta ulator keys is arranged, when it is operated, tojrelease said typewriter carriage 8 from the ease .ment mechanism in the usual manner. e connections for accomplishing said release include a universal. bar 121 operated heels 122-on the stop plungers 1'16, and ear universal bar is faston a rock shaft 123 carryinga rock arm 124, which. throu" h a link 125 draws down'the rear end of a ever.

126, so as to swing the front end'thereof. upward and causefa'n idle wheel-mthereon,

tolift the t writercarriagerack 140st 'of the 'ratche t v vheel 13 When the carriage is thus released from itsescapement wheel '12, it is drawn forward in letter-feeding direction until the stopplunger 1 16 arrests it by inter'c'eptin acarria stop115; Said plunger stops '11 form a ecimal tabulator 1110103811 in a casing 128.

The carnage stops are 53, 54, in driven,

projection or level129 of thel'ower arm 139 feet ll 1 a swing arm 1 1 fasten said ste -b -ste movement are ref-' p y p p' 'saidtota'ertoadd.

-sto $115 will .ftheyare arranged to 115, in addition to the e roc lugs or extensions 58, also include projections or levels 129, 130 and 131 (Fi 9). Said projections are of varying dept 'and are arranged to automatically shift the the clutches 102, 108, which control the turn- 10 ing of the computin wheels by means of the numeral keys and t e rotation of the carryover mechanism, thus relieving the operator of the necessit' of manually shifting the handles 104. or this purpose there is our- 7t naled on the casin 128 a shaft 132 carrym a rock arm 133, w ich rock. arm is arranged to cooperate with the upper end done of thestops..115. When said rock arm 133 rocks to its innermostiposition' eorrespondl0 ing to asubtracting projection or level 130 atthe upper portion of a carriage stop 115, as seen in Fig. 1, it rocks an arm 134 fast on said shaft 132, so as'tomove a forwardly extending link 135 ivoted on'saidrock arm 8a to swing a bell cra 136 rearwardly, so that the arm 137' thereof, which is pivoted by a pin-and-slot connection 138 to an extension of the lower handle 104- for the lower total- 'izer,- will shift said handle into its downward l0 position'at the forward end and cause said clutch toconnect the master-wheel to subtract. In a similar way an outer adding and i0 a stop 115 is arranged to swing on a sleeve 140 on said shaft 132, and thereby a pp crank 143 tos'wing its extension 144 to swing eeve to draw 142, so as to cause its bell the up r handle 104 forthe top totalizer upwa at its forward end and thuscause.

It will be observed that the rock arms 134 and'141 extend in opposite directions, and

to ofiset this, the bell cranks 136 and 143-105 are setto work in opposite directions, so that identical rojections or levels of the ave identical effect on both roc am 133 and rock arm 139. Each of said ro'ckarms 133 and 189 is drawn by a s'p'riiig-145 'ina forward direction constantly tending to move it to cause the computing mechanism to 'subtract.-

In order to enable the typewriter'carriage to feed past theflat faces 146 ,and'14-7 of rock arms 133 and 189 respectively the ends thereofare'beveled as at 148 to orm cam surfaceswhich will force said arms outwardly when the stops strike'them. Each flat face 146, 147 is of the ,widthof the com- :puti'ng column or zoneso as to ho d the .clutches ,33 in geition throughout e colman or some. aclrof the rock arms 133 and 139is formed where it is fast onto its ,shaftor sleeve respectively, comparatively 12s narrow, so that the two portions thereof where fast to their shaft and sleevewill nottalre up more than the column" over which T affect the com ntin mechanism.

k arm 139 is orme the right and then upwardly lugs carried by said stops with a narrow ortion 149 and then at the top is extended broadly so that the ed e 14.7 is of length equal to a computing co umn. The rock arm 133 is formed with a narrow portion 150, which then extends to at 151, and then to the left at 152, so that the edge 146 will be of precisely the same len th as ed e 147, and precisely above it. In t 13 we t e.

two rock arms 138and 139 swing per ectly clear of each other, and operate on the same column. The rockarm 133 in its narrow portion is bent outwardly at 153, so that the narrower portions 149 and 150 near their tops will lie in the same plane when not engaging stops 115.

Whenever a tabulating key 117 is depressed, these rock arms 133 and 139 are automatically swung outwardly so as to be practically clear of the stops 115. For this purpose, the rock shaft 123, which operates the carriage release mechanism, carries also a rock arm 154 fast thereon, which strikes the tail of a lever 155, the up er end of which has a broad-edge 156, and when the rock shaft 123 is swung by the depression of any tabulating key, the rock arm 1-54 will swing the flat surface of the lever 156 against the rock arms 133 and 139 and swing them outwardly. Owing to a little lost motion in the clutches, these rock arms 133 and 139 can be swung completely clear of the stops 115, and thus the carriage may travel unimpeded by the edges 146 and 147 of said rock arms.

he stops 115 may include any, desired combination of adding, subtracting and new tral positions, such as are shown m Fig. 9. The rock arms 133 and 139 are locked to their carrying. members bymeans of set screws 157 and 158, so that they may be adjusted thereon, and the lever 155 is pivoted as a sleeve outside of the sleeve 140 and may be'held against the frame 128 by means of a pin 159 fast on the sleeve 140,

Variations may be resorted to within the scope of the invention, and portions of the improvements may be used without others. llnving thus described my invention, I claim: 1 I. In a typepriting machine, the combination with numeral keys and a plurality of gangs of com uting wheels of a typewriter carriage, a ta ulating mechanism comprising stops for positioning said carriage, keys for operating said tabulatin mcchamsm, or separately connecting said numeral keys to said wheels, and means for disabling said connections when said tabulating keys are operated.

2. In a typewritm machine, the combination with numera keys and computing wheels, of a typewriter carriage, a tabulating mechanism comprising a stop'for positioning said carriage, a key foropcrating said tabulatin mechanism, a bar swung by a lug on sai stop to automatically connect said numeral keys to control said wheels, and an arm moved by depression of a tabulating key to swing said bar clear of said lug.

3. In a typewritin machine, the combination with numera keys and computing wheels, of a typewriter carriage, a tabulating mechanism comprising a stop for positioning said carriage, keys for operating said tabulating mechanism, a bar swung by a lug on said stop to automatically connect said numeral keys to control said wheels, a universal bar moved by each tabulator key, and an arm swung b said universal bar to move said bar clear 0 said lug.

4. In a typewritin machine, the combination with numera keys and computing wheels, of a typewriter carriage, a tabulating device comprising keys for positioning said carriage, rack stops, coiiperating stops operated by said tabulating keys, means operated by said rack stops for varying the control of the connection between said wheels and said numeralke s, and means operated by said tabulating eys for maintaining said connection at a predetermined position while said tabulating keys are operated to cause said carriage to travel.

5. In' a typewriting machine, the combination with a traveling carriage, numeral keys and computing w mechanism for positioning said carriage, a plurality of .denominational stops in sai mechanism, a universal bar operated by said denominational stops, a series of rack stops, a bar operated by said rack stops for connecting said keys to control said wheels, and a lever swung by said universal bar to cause said stop-operated bar to swing free of said stops. 4

6. In a typewriting machine, the combination with a travelin carriage, numeral keys and computing wheels, of a tabulating mechanism for positioning said carriage, a

plurality of denominational stops in said mechanism, a clutch between said wheels and keys, a universal bur operated by said denominational stops, a'series of rack stops, a bar operated by said rack stops for controlling said clutch, and a lever swung by said universal bar to cause said stop-op erated bar to swing free of said stops.

7. In a typewriting machine, the combination with a traveling carriage, numeral keys and computing wheels, mechanism for pbsitioning said carriage, a plurality of dcnominationat=-st6psfliii said mmalmuism. a clutch between saidavheels and keys, at pivoted arm for shifting 'the seizing member of said clutch, a series (if-rack stops, a cum bur adjacent said rack" sto )S, a link connoctin said canrbar to sai pivoted arm to s ift said clutch, a universal bar eels, of a tabulating of a tabulating operated by said denominational stops, and a lever swung by said universal bar to swing said cam bar clear of said stops.

8. In a, typewriting machine, the mmbination with a traveling carriage, numeral keys and computing wheels, of a stop for said carriage, means for controlling the connection between said wheels and said keys by said stop, when the carriage is in any computing zone, tabulatin ke s, and means for reakmg said control y t e operation of a tabulating key during a change from one computing zone" to another.

9. In a typewriting machine, the combination with a traveling carriage, numeral keys, and computing wheels, of a rack stop, a series of key-operated stops, means for controlling the connection between said wheels and ke s by said rack sto and means for brea ing said control by 5'16 operation of a key-operated stop.

10. In a typewritin machine, the combinationwith numeral eys and a traveling carriage, of a plurality of gangs of computing wheels, stops on said travelin carriage, a master-wheel for each gang of computing wheels, lugs on a pluralit of said stops to connect said master-whee s to said carria e, means to separate] and variably contro the connection of eao master-wheel to the numeral keys by the appropriate ones of said lugs, a tabulating device comprisin keys for coiiperating with said sto s, and means operated by each tabulating ey for disconnecting said lugs from the means which they control.

11. In a typewritin machine, the combination with numeral eys-and a traveling carriage, of a gang of computing wheels, :1 master-wheel for saidgang, a rack bar, stops on said rack bar, key-operated denominationa'l stops for positioning said carriage by cooperation with said rack stops, a cam bar operated by extensions on said rack stops, a clutch for said master-wheel, a, rock shaft swung by said cam bar to shift said clutch, a lin from said rock shaft to said clutch, and a universal bar swung by said key stops to swing said cam bar free from'said extensions.

12. In a typewriting machine,the combination with numeral keys and a traveling carria e, of a plurality of gan of computing w eels, stop on said trave l ng carriage,

gang of computing a master-wheel for each wi ,els, extensions on said stops,'a pair 0 separably operable cam bar: separately and variably moved by said extensions, a shaft to which one arm is fast, a sleeve on said shaft to which the other-is fast, a of key-o erated denominational stops, a universa bar swung by said key stops andan ranged to move said cam bars to inoperative position, and means for controlling said gangs from said sleeve and shaft.

V said cam bars shi said master-wheels to said keys, tabulating keys for positioning said carriage by said stops, and connections from said tabulatin keys for makin said master wheel contro connections ine ective.

14. In a typewritin machine, the combination with numeral Keys and a traveling carriage, of a plurality of gangs of computing wheels, a master wheel for each gang of computing wheels adapted to rotate them, a rack bar, a series of stops on said rack bar, key-operated denominational stops for positioning said carriage by coiiperation with said rack bar stops, extensions on said rack stops, a rock arm carrying a cam bar ar-,

ranged to be moved by one of said extensions, a rock shaft carrying said arm, a sec ondrock arm carrying a second cam similarly moved by another of said extensions, a rock sleeve on said r'ock shaft, rock arms fast on said sleeve and shaft, a clutch for each gang of computing wheels, a link connecting each of said clutches to its one of said rock arms to enable that arm to shift its clutch, and a universal bar operated by said key sto s for making said cams inef fective to shift said clutches.

15. In a typewritin machine, the combination with numeral ieys and a traveling carriage, of a plurality of gan sof computing wheels, stops on said traveling carriage, a. mastenwheel for each ng of computing wheels extensions on said shops, a. pair of separably operable cam bars variably moved by various ones of said extensions, arms operated by said extensions, a shaft to which one arm is fast, a sleeve on said shaft to "which the other is fast, means'for controll ng said gangs from said sleeve-and shaft a tabulating mechanism for positioning said;

carriage said stops, and means operated by said tabulating mechanism .for makingsaid extension. ineffective.

16., In a typewritin machine, the combination hwith numeral eys and a traveling carriage, of gangs of computing wheels, a master-wheel for each gang, said carriage connected to'produce a relative movement between said master-wheel and said gangs, a

rack bar, stops on said: rack bar, an extension on one of" said'stops,.another diflerent extension on one of said stops, a separate cam bar for each kind of extension, allof said cam bars covering the same travel of J the carriage, sup orting means upon which means controlled by said cam bars for affecting said computing mechanism, and a tabnlatin, nn-i-liauisni for said carriage automatically making said cam bars inetl'cctivc.

17. In a typcwriting machine, the combination with numeral keys and a traveling carriage, of gangs of computing wheels, a inasier-\\'licel for each gang. a rack bar, stops on said rack bar, an extension on one of said stops, :1 ditl'erent extension on oneof said stops, :1 separate cam bar for each kind of extension, all said cam bars covering the same travel of the carriage, clutches, for said master-wheels at one end of the machine, rock members connecting said cam bars to links at said end, means for shifting said clutches by said links, and a tabulating mechanism for said carria e automatically making said cam bars inc ective while the tabulating mechanism is efl'ective.

18. In a combined typewriting and computing machine, the combination with numeral keys and a traveling carriage; of a computing device, means controlled bysaid traveling carriage for causing said com uting device to add or'subtract the num Is represented by the keys operated, a tabu lating device, and meansefl'ectivc on the operation of said tabulating device for-holding said carriage controlled means inn 0- sition where said carriage will travel cear of it.

19. In a combined typewriting and computing machine, the combination with nunicral keys and a traveling carriage, of a computing device, means whereby numbers represented by the keys operated are registered in said computin device, a 'reversm device for causin sai numbers registere to be either adde or subtracted, tabulating keys for positioning said carriage, and

means operated by said tahulating keys for holding said reversing device in a given po- 'sition while the typewriter carriage travels. 20. In a combined-typewriting and computing machine, the combination with numoral keys and a traveling carriage, of 'a com utingdevice, means whereby numbers represented by the keys operated are'registered in said computing device, a reversing device for causing the numbers registered to be added or subtracted, an arm operated by said traveling carriage to cause said reversing device to be shifted automatically to add or subtract, t-abulating keys for positioning said carriage, a universal bar operated by said talmlating keys, and an arm swung by said universal bar to move said carriage controlling arm to a position where the carriage will travel without vibrat ng it.

21. In a combined typewritiug and computing machine, thetcombiuation with numeral keys and a traveling 'arriagc, of a computing device in which numbers are reg- 65 istered as written by said numeral keys, :1

ing how said ".wheels shall turn under the in! reversing device for causing the numbers so registered to he added or subtracted in said computing device, a rack bar for controlling the feed of said carriage, tabulating keys for freeing the carriage from said rack bar to locate it, a universal bar operated by the tabulating keys for so releasing it, an arm moved by said traveling carriage to auto matically shift said reversing device to add. subtract or be neutral, and an arm connecte to said universal bar for moving. said carriage controlled arm to a position where the carriage may travel without operating it.

22. In a combined typewriting and computing machine, the combination nith numeral keys, computing wheels and a traveling carriage, of a clutch for determining' how said \vheelsshall turn under the in uence ofsaid keys, :a'lug on said carriage, 'an arm coiiperating with said lug and connected to said clutch, tabulating keys for positioning said carriage, and means efectivq at the operation of anyxtabulating key to make said lug inefi'ectivc'on said arm.

In a combined typewriting and computing machine, the combination with numeral keys, computing wheels, and a traveling carriage, o a clutch for determinnotice of said keys, a lug on said carringe, an arm for operating said lug and connectedto said clutch, tabulating keys for positioning said carriage, a tabulatingcolumn stop rack bar'on which said lug 1s settable, and means efl'ectivc on the operation of any tabulating key to make said lug inefi'ective on said arm.

24; In a combined typewriting andconn puting' machine, the combination with numeral keys, a plurality of sets of compuling wheels and a"travelin'g carriage, of a master wheel for each set of wheels for determining how the wheels of that set shall turn nndcrtheinfiuence of said keys, a clutch for' 'each 'set for-4 determining how that master-wheel shall turn its wheels,

:1 lug on saidcarriage, fan arm foreach grou :of computing wheels connected to the c ntch for said wheels and cooperating with said lugytabulatingrkeys for position ing said carriage, :ind means for making said lug ineifectivc on said arms whenever a ta'bulating ke Y is operated.

25. In a com ined typev'riting and computing machine, the combination with numeral keys, a plurality ofsets of coinputing wheels and a traveling carriage, of a master wheel forcach sct for determining how its wheels shall turn under the influence of said keys, a clutch for each set for determining how that. master wheel shall turn its wheels, a lug on said carriage, an arm for each group of com uting wheels connected to the clutch for said wheels and cooperating with said lug, tabulating keys for positioning said carriage, extensions of said lug whereby it variably cooperates with each arm, and Inca is for making said lug inelfective on .said arms whenever a tabulating key is operated.

26. In a combined typcwriting and computing machine, the combination with numeral keys, a plurality of sets of computing wheels and a traveling carriage, of a master wheel for each set for determining how its wheels shall turn'under the influence of said keys, a clutch for each set for determining how that master wheel shall turns its wheels, a lag on said carriage, an arm for each'grou of computing wheels connected to t e c utch for said wheels and cooperating with said lug, tabulating keys for positioning said carriage, means for making said lug inefl'ectivc on said arms whenever a tabulatin key is operated, a spring normally hol ng'each arm in effective position against said lug, and means elfective at the o ration of every tabulating ke for tensionmg said springs to make said u ineffective on said arms.

27. The com ination with computin wheels, of a master wheel for operating said computing wheels sew'atim, numeral keys for controllin the extents of rotation of said master w eel, a carriage traveling to determine difl'erent computing zones for said computing wheels and said masterwheel, automatic controlling means for determining the connection of said keys to said wheels, tabulating mechanism for jumping said carriage from one computing zone to another, and silencing means or said automatic controlling means brought in. play by said tabulating mechanism durin the operation thereof.

28. he combination. with computing wheels, of actuatin mechanism for driving said computing w eels, numeral keys for controlling the extents of driving action of said actuating mechanism, a carriage traveling-to determine difi'erent for said computing wheels and actuating mechanism, -t-abu lating mechanism for jumping'said-carriage from one computing zone to another, controlling means 0 rated from a part of said tabulating mec anism computing zones for determining the connection between said keys and said computing wheels, and means brought into play by said tabulating mech anism durin the action thereof, to limit the action of said controlling means during a tabulating movement of said carriage.

29. The combination with computing wheels, of actuatin mechanism for driving said computing w ieels, numeral keys for determining the extents of driving action of said actuating mechanism, a traveling carriage having step-by-step movements and jump movements, state-controlling means for determinin the character of drive of said COHIPUUHV wheels by said actuating mechanism under the control of said numeral keys, a stop or lug determining the jump movements of said carriage and the action of said state-controlling means, and shifting means for effecting a clearance between said stop or lug and said state-oontrolling means during a change in the com uting zone.

30. The combination with a carriage and a column stop therefor, of tabulator stops for controlling the carriage through the medium of said column stop, computing mechanism, a state-controlling mechanism for the computing mechanism controlled by said column stop, and means controlled by a tabulator stop' for silencing the state-control mechanism during a traverse of the carriage under control of said tabulator stop.

31. The combination with computing mechanism, of a traveling carriage, column stops on the carriage, a state-controlling mechanism cooperating with the column stops to determine the state of the computing mechanism in different computing zones as determined by the carriage, tabulator stops controllin the carriage through the medium of the co umn stops, and means under control of a tabnlator stop for rendering the state-control inefl'ective by any columnstop durin a traverse of the car riage under contro of said tabulator stop.

. 'WALTER WRIGHT. Witnesses:

F. E. Ann-xannan, Trrns H. IRONS.

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