US1259701A - Combined type-writing and computing machine. - Google Patents

Description

W. WRIGHT. comamenrwe WRITING AND COMPUTING MACHINE,

APPLICATION FILED .IANL}, I912.

Patented Mar. 19, 191 8.

2 SHYEETS-SHEET I.

WIT

iNVENTOR:'

w. WRIGHT. COMBINED TYPE WRITING AND COMPUTING MACHINE.

0% 1 9 11 qw 11 R a M. d m n [W a P 9 m a m M. m W 1 0 7 9 5 2 1 2 SH EETS-SHEET 2- gmvE om' "oniirnii srATns PATENT OFFICE.

WALTER WRIGHT, OF NEW YORK, N. Y., ASSIGNOR T0 UNDERWOQDQQMPU'I'ING MACHINE COMPANY, OF NEW N. Y.,

A COBPQRATION OF NEW YQRK.

COMBINED TYPE-WRITING AND COMPUTING IVIACHINE.

Specification of Letters Patent.

Patented Mar. 1.9 1 918,

Application filed January 4, 1912. Serial No. 669,346.

To aZZ it may concern:

Be it known that I, WALTER WRIGHT, a citizen of the Uni-ted States, residing in New York city, in the county of New York and State of New York, have invented certain new and useful Improvements in combined Type-Writing and Gmnput-ing Mzichines, of which the following is'a specifics tion.

This invention ielzites to *9 new and improved key controlled correction mechanism which may he used in connection with -a combined typewriting and computing mechine of the UnderWoothWright typemnd is an improvement on the application of Wright and Degener, 'N'o. '543 ,603,-'fi1ed Fobru'ary 12, 1910, -"(now Patent No. 1,237,008, dated August 14, 1917,) and myepplieations No. 660,392, filed November 15, :l91i1,,and No. 663,216, filed December 1, 1911, ow Patents Nos. 1,245,300 'and 1,245,30Ld ted November 6, 191:7).

In "my above-mentioned application No. 663,216, I have shown how the statemf "a plurality of eomputingih'endm-as to the'charactor of computation carried on lthereby, can he changed simultaneously to temporarily reverse their individual operations Without inte'rforing 'With their individual control ling-mechanism 5, 0 1 :Teversing'the' direction of drive thereto from "the motor. Means WZLSHlSO disclosed 'Wherehy the back spacing 'key could concomitantly shift the carriage. "back o-space and effect ithe-abovementioned reversal and "change 'ofstate. lt i's'o'ften desirable to obtain "such w'ehange of state and reversal without -11 concomitant movement of the carriage, and. misc from a point most convenient -"to "the i operator.

A feature theieforeof fthis invention is the provision of keys Whose purpose is *to effect a temporary end semi--pe1mancnt change of state of one or uture comp-citing heztds'by ZKI'GVGISQII of 'the-di'rectiowof drive from 'the motor-thereto.

A 'further featirre- -o'f fthis invention :-iiS" E-118 proi isi on'of si-l eneing' keys vt-ii-ir'ih: *act to: T8151- der one o'r more heads inoperative by interrooting dri vefrom" the -motor thereto.

These "feainires t me-y --be accomplished hy pro vidiiig for-eadh ar tli'e oompu'tiirg head individual controlling mechanism, which shifts concomitantly clutches controlling the drive and direction of drive of both the master Wheel and the tens-canrying mechanlsm. The gearing forldriving these clutches may be connected to the source of power :by a train of gearing which includes a clutch for the gearing :driving the most-er wheels and a clutch 'for the gearing driving the tens-carlying mechanism, which is shifitab'le to any one of three positions corresponding to rotations of the master :Wheel :and -,tens carrying mechanisms :in two directions, and the -I1011-IOtltl0l1 of the master Wi'lBGlS and the tens carrying meohanisms and-the gearing *for driving the :same. These latter clutches are controlled bye-main-controlling mechanism Which is adapted 'to shift them simultaneously.

This "main --c0ntro'll ing mechanism may be operated from-anyone of four i keys, two-o?t' which are for temporary adjustment and two for permanent adjustment. l wo :of each ofthese pairsof keys shift therclutches on the common or main drive from a. normal position, in which they are held b l -a. spring and which corresponds too rotation of thegearing for driving-themaster-Wheels and 'tenscarryingmechanism in one-direction,='to such a position that thesegearings willdrive'the-master wheels and tems earrying' mechanism to'f :the computing heads Whioh happen to -he-active in justthe opposite direction. These keys may therefore be-calletl ieversing keys. The. other tworof the-pairs of keys will-shift the clinches-on, the main 01' common drive to an .intcrinedi ate point corresponding to the disconnection' of: the vmester Wheel and :1 tens carrying gearing-s 'from the main d rive, and thus-correspoii-ding to a, silencing Of all G$ tl16nCOmplitinq heads. Hcnoefi these f latter keys-may he ca lied silencing keys. I

Gm-e of the-reversing keysi aud one of the silencing keys, after havingionce sheen depressed, are lookedrinithciridepressetl position by Hatches, so that :the rreversal tor 1encing .:;cen .ibe :i-in efi'ect euiitil these ,iatohe5 are releaseid, *Tfhese i latches, which the locking means for rthe semi-enermenen silencing maid mevers mg vadmire, scan hex-1Z9.

leased by a depression of one of the tempo rary keys, for which purpose connections are provided between these latter keys and the locking means.

Other features and advantages will hereinafter appear.

In the accompanying drawings,

Figure 1 is a. side View in elevation with parts in section.

Fig. 2 is a diagrammatic perspective view, showin the connection between one of the numeral" reys' and-the valuating or escape-ment mechanism, whereby the extent of rotation of the master wheel is controlled according to the value of the particular nu' mera-l key struck.

Fig. 3-is a vertical section throughone of the computing heads. v

F ig. 4 is a skeleton perspective view, showing the connection between the severaltemporary and permanent reversingand silencing keysand the controlling-mechanism for the main or. common drive between the mo: tor and the gearing more nearly connected to the computing head.

Fig. 5 is a fragmentary view in side elevation,- showing the reversing mechanism for the main drive in its normal position.

,Fig. 6 is a vertical detail section, showing the means for shifting one of the clutches.

Fig. 7 is adetail of the tens-carrying driving gearing. V

Fig. 8 is a detail, showing one of the permanent shifting keys, in this instance the reversing key, in its actuated and locked position.

Referring more particularly to the'separate parts of this invention as embodied in the form shown in the drawings, 1 indicates letter keys and 2 numeral keys, which are secured to key levers 3, which operate through the intermediary of hell cranks 4, type bars 5, so as to swing the latter up against the front side of a platen 6 carried by a carriage 7 which runs on one or more rails 8. The letter-feeding movement of the carriage 7 maybe obtained in the usualmanner step-by-step at each actuation of a key by the release of an escapement mech-' anism, indicated generally by the numeral 9,'which may be of the usual Underwood type.

The computing mechanism may be controlled from the numeral keys 2 in the manner described in application No. 543,603, wherein it was shown that each numeral key lever 3 was adapted to pull down on a link 10, so as to rock a bell crank 11, thereby pulling on a link 12 to swing a lever 13 about 1ts pivot 14. The swinging of each of the levers 13, of which there is one for each numeral key, plunges a jack 15 against a I corresponding pin 16 provided in a valuating wheel 17. The valuating wheel 17 is normally held from rotation by one of the projected pins 16 engaging an escapement wheel 18, which is secured to another escapement wheel 19 engaging one of a pair of locking stops 20 on a rock shaft 21.

The rock shaft 21 is oscillated at each actuation of a numeral key, so as to release the escapement wheels 18 and 19, and thus permit a rotation of the valuating wheel 17 a predetermined amount, depending upon the particular numeral key actuated, until the next projected pin 16 engages the escapement wheel 18. The rocking of the shaft 21 may be accomplished by a collar 150 being pushed back by each of the levers 13 at the actuation of a numeral key against the tension of a spring 151, so as to oscillate a lever 152 which is connected by a link 158 to-an arm 154 on the shaft 21.

This mechanism, which may be termed the escapement or valuating mechanism for the computing mechanism, determines the extent of rotation of a shaft 22, to which the valuating wheel 17 is secured, and which is provided with a gear 23 meshing with a correspondinggear 28 on a shaft 24. The shaft 24 is also provided with a bevel gear 25 meshing with bevel gears 26 and 27 se cured respectively to shafts 28 and 29. The shaft 29 is driven from a motor 30 through the intermediary of a slip clutch not shown, and also through the intermediary of intermeshing bevel gears 31 and 32, the latter of which is (scared to the shaft 29. The shafts 28 and 2 form a portion of the gearing connecting thermotor 30 with the gearing for driving the rotatable parts of one or more computing heads 33 and 3%, of which two are shown.

Each of the computing heads is preferably of the type shown in application No. 543,603 above-mentioned, and includes, as will be seen by reference to Fig. 3, a master wheel 35 splined on a shaft 36, so as to have a movement relative to a series of computing wheels 37, whereby it will be capable of engaging with the internal gears 38 providcdby the inwardly projecting teeth of these computing wheels, thus enabling the master wheel to successively actuate each of these computing wheels. The relative movement of the master wheel and the com puting wheels may be obtained in any suitable manncr, as for example that described in my co-pending application No. 571,813, filed August 1, 1910, (now Patent No. 1,244,398, dated October 23, 1917), whereby the master wheels are manipulated step-bystep at each new column by a lever 105 provided with an automatic catch 100, which is engaged and operated by a series of column stops 101 carried by a rack 102 on the carriage 7 These computing wheels are also provided with external teeth forming external'gears 39 meshing with the gears 40 carrying the dial wheels 11, so that the plurality :ef patches e7 number; which ere engegefl by vsprmg pale 1411 I numeral GSJWhiChdl capable aei "eljxgwgi' described "in romtmn and numerals merlced en the die]. wheelswill be exhibited *fhiYmflgh an opening 42 in the casing ef each computing head, there y s l'wwlng the partlculam eomputahmi rum sup gear; indicated for the respective com-a puting heads the humemlsA-S and AM.

These bevel gears each mesh wlthepaer of bevel :gezurs ileosely mounted on agehe,

t 1&5 amid faced opposite directions, 150 eswto the pairs of bevel gears whichEwredndi eted by the 11: merel's 46,917, 8e11c1 49, we;

reletiew'witih the shaft 45, were "We 1 Vided rclulfiehes 5:0 and 51 splined mrtheehaf'b table t e (tense :the teeth provided en opgpoeilte ends :theneef to cellgage to be eh rrespendiamg teeth on the Each ofthe clutehee is led with circulargenome, :sei to be eaegagedby pine 52. arried by .shiiitin leverssfi and 35%. The sh'l'ftlnglevere 21:11, fieerehpl'voted ree tively m; 55 3 mid 56 by meensyof pine end; are capable of eeeu'pyrw aene of A pesitions eerrespomding t0 rlhe 0: me lien of each 0f the gears of a peer $111 vd1 lvmgre lemony-with: t1] eeheft 45,La nde1ee Wliih e11 time 0f :edajuetment, "they are provided Wit neferebly iflthree 1m fientsefi.

50 that there will be are mi'breken 1 tween the meter and 111116 Emee 35,1315; shaft 45 11378 iee'cm'ecijtheretee bevel gear 159, which meshes with sitely facing bee {e1 16nd wllleeeGlgw mennted onthe 2-8, but c we efl be u 11g :z'ele, mm thereiwieh shaft "epilineder has teethen "epapesfl re ends the .eof

with mom teefih e11 "the in verdly fecingwiside 1 e 161E136]: 62, which a 2 8, an

Km the type 0f eempu'ting ease Hf keemputing: heads v33 any! 134%, meepyeze mEeeh of the ehafifis 351501 xqhe eomputing heads .33 2mg}: 3% 15 prov ded 1mm bevel the inmmu feelingwsidee (if; each ing levers 1 may taken up by springs :82 and a enewseeured 101193 end toythe lemmaey;

heed \shemy hE'lQNIVlith T e1 tetra sfelma 00 603, on the cmtrespend 11W mtmm of gearing, cLeseribeclfin epplli e time; Ne 34:3,603, and jil'ldicihiledi the numeral 65. Thebe vel igeei 1 \pcuofiee ins E 5 1' so es he: pem'ni t 111mm :motiioli etf @319 311119 plenuemtamy :leVeus relative to "the main hifi This "limited m0 Counter vShEh heweimgear SS7 meshing x v v 9ThfilS1-ll 2891051 hieh web 5 meme ngege t the clutch 93 be shifted simultaneously, so

anisms of all of the computing heads. For

this purpose, a shifter 91 is providech'which is shown in the form of'a rod slidingly mounted in bearings 95, and having a pair of arms 96 and 97, which engage in circular grooves in the clutches 62 and 93.

The shifter '91 is normally held in the position" illustrated in Fig. 1 by a spring 106. To manipulate the shifter 91 to a neutral or a reversed position, there is pro vided a pin 107 on the rod of the shifter, which engages a slot 108 in an arm 109 secured to a shaft 110. The shaft 110 may be actuated from a shaft 111 throughthe intermediary of intermeshing fragmentary bevel gears 112, 113, fixed respectively on the shafts 110 and 111. To rock the shaft 111, and thus manipulate the shifter 9-1, there are provided a plurality of keys 111, 115, 116 and 117. The keys 1141 and 115 operate the shaft 111 by means'of a crank 118 thereon, and the keys 116 and 117 operate said shaft 111 by a crank 119 thereon. Each of'the keys 114C to 117 is pivoted intermediateits ends, as at 120, and comprises the usual finger rests 121 and levers 122. All of these keys are provided adjacent their rear end with cam edges 123, ML. gaging pins 124 and 125-located respectively on the cranks 118 and 119. These cam edges, on an. actuation ofany one of the keys, are adapted to rock the cranks 11S and 119, and thus the shaft 111, until the pin'12-1 or 125 enters into the particular slot 126 or 1270f the key' operated.

engaged with the pins 124 and 125. It will be further noted that the inclined cam edges 123 leading to the slots 1'26 and 127 are longer in. the case of the slots 127 than in the case of the slots 126, so that the shaft 111 will be rotated an appreciably greater theclutches 62 and 93 to their opposite limit 7 of travel inengagement with the gears '60 and 91. v

The keys 115 and 116, which are provided with the slots 126, merely shift the clutches 62 and 93 to an intermediate or neutral position which corresponds, with the disconnection or interruption of the drive from themotor to the actuating mechanism of the computing heads embodied in the It will be noted that the slots 126 and 127 will lock theshaft 111 against further rotation after they-have once master wheels and tens carryingmechanis'ms. These keys are therefore called the silencing keys v The other keys 114 and 117, which are provided with the slots 127, will manipw late the shifter 91 to the extreme limit of its throw, so as to reverse the drive from the motor to the computing heads. These keys are hence called reversing keys.

The keys 114' and 115, after once being depressed, are automatically returned to their. normal positions by springs 128. These keysare hence called temporary reversing and silencing keys. because their action is merely in effect while the operator holds them in their depressed position.

. The keys 116 and 117, however, when once depressed, are secured in their de pressed positions by locking mechanism, which is shown in this instance to comprise pins 129 located on the sides of the key levers which are engaged by latches 130 secured to a rod131. These latches 130 are normally held in position to engage the pins 129 by a spring 132.

If it is desired to disengagethelocking mechanism so as to release whichever one of the permanent or semi-permanent keys 116 and 117 which happen to have bee eprcssed, it is merely necessary to depress the corresponding one of the temnorar kevs 114 and 115. when pins 133 secured to the side of the levers for the keys 111 and 115 will engage cam edges 134 of arms 135 ecured to the rock shaft or rod 131. The movement of oneof these kevs 114. and 115 will thus swing the latches 130 from eng L'ement with the pins 129 on the key which happens to be de re sed, so that this kev mav be returned bv its spring 136, one of which is provided for each of the permanent kcvs 116and 117.

In the operation of the device. if it is found necessary to reverse theaction of the machine without interfering with the inclividual controlling mechanism for the computing heads. that is. without shifting the of the numeral kevs should happen to be struck while this key is depressed. such of the computing heads as happen to have their levers 53 and 54 in their active position will be rotated in anopposite direction to: a normal one corresponding to the particular position of theircontrolling levers.

-l/Vl1en the pressure on the key 114,-

is re 13!) Having thus descr ed my wing" 106 a i man'ent *0; semi-permanent fre- 1 vari t'ons may be i'esortgd f0 thin the claim: j

Tl-"The comblnatlon with 1 soufceiof power 513d said cohipuiiiiig The combination! with a plu i'alitjf of said drivmg C01 said driving (10 11118660118 including be l mm b 3. combination w $111 a plural, lty 0f lt ingh powepfor etween sa jlcl 6. The 1 combinamon wi h plufality of said driving connections including a mem ber movable to different positions so as to reverse or interrupt the action of all of said computing headsaccording to its positions, means normally tending to hold said memberin position to cause activity of said com,-

puting heads, means for temporarily positioning said member against the tendency of said holding means, so as to interrupt the action of all of said computing heads, and means for moving and detaining said member against the tendency of said holding means in position to interrupt the action of all of said computing heads. 7 e

'8. The combination with a plurality of computing heads, or a source of power for said heads, driving connections between said source of power and said computing heads, said driving connections including a member movable to different positions so asto reverse or interrupt the action of all of said computing heads according to its positions, means for positioning said member so as to interrupt the action of all of said comput= 'ing heads, a second means for positioning said member so as to interrupt the action of all of said computing heads, and means brought intojaction on movement of said second-mentioned means, to'hold said member as positioned by either of said firstor econdanentioned means.

9. The combination with a plurality of computing heads, of a source of power, driving connections between said source of power and said computing heads whereby certain parts of all of said computing heads may be driven from said source of power, said driving connections having means for interruption so as to concomitantly interrupt the actionof all of said computing heads which may be active, a key for interrupting the driving connections so as to silence all of said computingheads, a spring normally tending to hold said connections active, and locking means for holding said connectlons in interrupting position against the tension of said sprin I v 10. The combination with. a plurality of computing heads, of a source of power,

driving connections between said'source of power and said computing heads whereby certain parts of all of said computing heads may be driven from said source of power, said driving-connections having means for interruption so as toconcomitantly interrupt the action of all of said computing heads which may be active, a key'for interrupting the driving connections so as to'silence all of Said computing heads, a spring normally tending to hold said connections active, lockingmeans for holding said connections in interrupting position against the tension of said spring, and means for releasing said locking means, said locking means also controlling said connections.

11. The combination with a plurality of computing heads, of a sourceoi' power for said heads, driving connections between said source of power and said computing heads, said driving connections including a member movable to different positions so as to reverse or interrupt the action of all otsaid computing heads according to its positions, and means for moving and detaining said member inposition to interrupt the action or I all of said computing heads.

verse or interrupt the action of all of said computing heads according to its positions, means normally tending to hold said member in position to cause activity of said com.- puting heads, means for temporarily positionin said member against the action of said holding means so as to interrupt the a'ctionof all of said computing heads, means to hold said member in a position to interrupt the action of all of said computing heads, and means brought into action by said tcmporaryqoositioning means to render said last-mentioned holding means ineffective.

13. The combination with a plurality of computing heads, of a source of power, driving connections between said source of power and said computing heads whereby certain parts of allot said computing heads may be driven from said source of power, said driving, connections havmg means for reversal and interruption so as to concomitantly re verse or interrupt the action of all of said verse or interrupt the action of all of said computing heads which may be active, means for normally holding said connections with the parts thereof in a certain relation, means for manipulating said connections to vary the action thereof, and locking means hold- 1 o eti n qf said e01 mea s b ing 1 meensbeing a ilociking means. h

ing s i @qnnee ns ag ns ineqfonne 1:10.11 sees to eo cemltently terr pt the a tinned hqld i e' means de thes vi l tipie m d um h a lminipule ng1 mi computing heads, of a seurce of pee er, dIlVm l igfiflr e tl l be n seldiseurce ef pew r end said eompeimgheeds whereby certa n parts 0132111 of said ce putiiigheeds may iweni rom i s u -emf powe fifllr d 1 s hiw 'l g we i WWFFUP ifiuil ef hali Qffsiaid computing heads hig m V be alcti a spr i g 1101; i1 wen-d ng p0 1"5 ier effe e said d wihgeoneepjzmne be 116; The celnhinzieion with eempiiting heads, of a wsoii rcefl aid heads; driwingconnections; eqmi'ce of power: and sziid cq npu'tingz (1 said di'iving 60 1111 QCtiG-HS inc immiehle @[10 different positions, so ewe wee 01 interrupt the eetiohwef all of mid computing heads according to ts PDSltlOHS,

means he- :held v Said member in: positionito cause one state of activity of said computing heads, and ineene to liiiove end iholdwsziid member in pesitien t0 intermptflthe eetien efdalll of said computing :heads,

means beiiw e lecking means;

17. The cembiimtio i With e piui'z lifey of eemputing heads of 2i seureeuoi pewei' for; saiddieads, drivingiconnectieiibetween mid seur ce of ,pewerend said computing Ihfidflifii,

said idriiving connections including 3 11116111- her movable to different posi'tiens, s0 Yes to reverseor interrupt the acticmef 21.11 of said e.

cemputingdiedds aecerding toiies positions,

means to hold said member iii] positidxmtq cause activity eiieaid eompu'tiiig heads, and means to move endiholdisaid linemb er ine position to interrupt the action efail of said a-i iyielding :means and the other of said W18.The\cemhinatien Wither computing liemhnof a die-y for iiren dermg sa d 00111- putinp; headtemporarily inactive,faf key 13111130111113?IBVQTSHIg the a ctlOl'lwOi sand computing bee d, a third key for TEIJ deriiig said computing heed iinaetive and another iIEVfOl reversi flieection of said comz: i v I 19JThe combination withji e computing head, of aizey for re n dering said computing heediemporarily inactive, a key temporarily reversing the dG'LiOIJ. fei? said eom- "enderin g sand piibi lgheed wfh rd key fee computing heed inactive, a mflier key Ff-011 reversing the action of saidcolhputingiheed, and aufenmtic docking means} for patching end holding said twe last-mentioned keys in citn said o king 1 brought 11 0 when through e ll litiligi head, He

one of said heads, one of isaid means being eeidheads,connections of power and sa d eempu 11g activity eiiddireetien f 1 i. means ectlngetia s ngle EFF-SHOES derive vi ig the fillllQyfSU as to e i-j troi the activity ii blnetiei with hn hikeyie for arying said Jeanne i of said hceinputi n' heads i eqtiv lipf: P of all of said eonipi ting heads eollectivel i t on livith 'ty 0 computingd1eeds,;; Of 1 a, source eziid heads, driving cqnne $011110, f rya d seid eei pi tin 11 ads, saiddriv ngl hergmovahle to reverse OlliIl'lF-Qlfrupihfi bed: in position to computing heads, means for temporarily positioning saidmember againstthe tendency of said holding meansto reverse the action of all ofsaid computing heads which are active, and means for detainingjsaid mem her so positioned to reverse the action of said active computing heads.

26. The combination with a plurality of computing heads, or a source of power for said computing heads, driving connections between said source of power and said computing heads whereby certain parts of said computing heads may be driven from said source of power, said driving connections having means for reversal so as to concomitantly reverse the action of said computing heads which are active, means for do taining said driving connections in reversed position, a second means for reversing said driving connections, and means whereby said first-mentioned reversing means may release said detaining means.

2?. The combination with a plurality of computing heads, each having a tens carrying mechanism, of gearing for driving said. mecham'sms including indivldual rotation I controlling mechanisms for each oi said tens carrying mechanisms, a source oi power, gearlng COHHQCtIDgSZLMl source of power with said first-mentioned gearing, in-.

cluding shiitable clutching mechanism, a key for manipulating sald shiitable clutching mechanism to one position, and a key for manipulating said clutching mechanism to another position.v

28. The combination with a plurality of computing heads each having a master wheel and tens carrying mechanism, of gearing for drivingsaid masterwheels, gearing for driving said tens carrying mechanisms, each of said gearings including means for controlling the drive of said wheels and said tens carrying mechanisms, gearing for driv ing said first and second mentioned gearings, including a reversing and drive interrupting mechanism, and a plurality of keys for varying the effective actlon of said last mentioned gearing.

29.The combination with a plurality of computing heads, each having a master wheel and a tens carrying mechanism, of-

gearing for driving said master wheels including an individual means for controll ng the rotation of each of said Wheels, gearing for driving said tens carrying mechanisms including individual means for controlling the rotation of each of said tens carrying mechanisms, asource of power, gearing connecting said first and second mentioned gearings with said source of power, includ-v ,ing silencing mechanism, and a key for controlling said silencing mechanism.- I

30. The-comblnatlon with a plur'ality of computing heads, of gearing for driving all of said computing heads, numeral keys for controlling the'ez tent of drive of said computing heads, reversing mechanism for detel-mining the direction of drive. of said gearing and said computing heads, and a plurality of keys for actuating said mechanism.

'31. The combination with a plurality of computing heads, of gearing for driving all of said computing heads, numeral keys for controlling the extent oi drive of said computing heads, reversing mechanism for determining the direction of drive of said gearing and said computing heads, and a plurality of keys for actuating said mecha nism to different extents.

32. The combination with a plurality of computing heads, each having a master wheehoft gearing for driving said master wheels, including mechanism for governing the rotation and direction of rotation of said master wheels, means manipulable at a single point for governing the rotation and direction of rotation of said gearing, anda plurality of keys for actuating said means.

The combination with a plurality of computing heads, each having a master wheel, or gearing for rotating said master Wheels, including an individual changeable drive :l'or each 01 said master wheels, means manipulable at a single point for governing the rotation and direction of rotation of said gearing, and a plurality of keys for.

manipulating said means. e

3a. The combination with a computing head having a master wheel and tens carrying mechanism, of a reversible gearing for driving said master wheel, reversible gearing for driving said tens carrying mechanism, gearing for driving said first and second mentioned gearings, including a pair of clutches shiftable to control the rotation of said first and second mentioned gearings,

and a plurality of keys, any one or which may shift both said clutches simultaneously.

The combination with a computing head having a master wheel and tens carrying mechanism, of a reversible gearing for driving said master wheel, reversible gearing for driving said tens carrying mechanism, gearing for driving said first and second mentioned gearings, including a pair of clutches shiittableto control the rotation of said. first and second mentioned gearings, and a plurality of keys, any one of which may shift both said clutches simultaneously, some of said keys shifting said clutches to different points than others of said keys.

36. The combination with a plurality of computing heads, each capable of being in one of a plurality of states of adding, subtracting or remaining neutral or inactive,

of a plurality of numeral keys, gearing controlled by SttlCl numeral keys so connected eb'the same time, means aforgchaplqging e011 such heads as topsalid c omp uting heads that the severdl heacls!(Ban be in thesanie cliffereht stilt-es ticuleh instant, 23y teiflpqrhry reversing key trolled b said 1111mm keys:

eqihpu izin means lnchv dual to each eqmput ng head a I revereing I key for operating said means.

137, The Ctgmbixmtion with afplumlity eomputmg heads, each capable of belng 111 Le said cemputing heady? the sefiera] he dsy can be m the same 0 dlfierent states at the value ti; c 011 "talntly the Sm 11115 33 be adding; andsubtracting abany pg tiCillll? instant, a; temperaiy sileji leing V silencing 01" opel'ming e. lclmtieans,

by eaid mm.

eomitailtlyj ma be addmg;

ersmg em means.

ding keye i" h st-lnehtioned ieversingf mechanism; 1

and e plurqlitjfef keys; fpncon trollingsaid lasbmentiqned lIlEEChQlllSp}.

heads, of 1 1113 1111311j Operable fer eontrelling the 1 activity and direction ofjnoveme nt of each beech amide pmmnw of Inmnuallymperable means (30111111011 '60 all of said heads for also controlling the actiw it? and djreetiori ef movement of all of said, eonip utlil g"heads collectively:said;indiyidg 1121.1 menuallyeperable means rheing j ma nipuf liable at any time independen 452, The geombination: with a e omputi ng mm for clmz ugiilg" don} ie of all of such heads 1d 2p permanent d g e h ter, a re k 1 t p ra wlv arm, and a pliu ality bi key lever 50 Connected ..1 'theszune diifeient states al the same tune, means? for Q11Q11 g'1 11g Cont-ne etaiie of all; pl guchj e adsg as Wing: the state of saicl computing-mead jin- :1 n tqrock; said lshaftan d llmlify g a g d pint 00k :shaita em la d Shei reat r flmm iti fs d key l s s x mm s o s lo ted a h gtermi iajti nx (1H Said can; edges and acti g st o 1 lid rock shaft againet mqvemenfl ,f 1 4:5. The combination with c0: muting ltleadfpfycolitrolling meehanisqy 011} goverl ing tl ie etzitefqf said; (301111311 ng he-cpd in-flw I; eme in each Ofeaid y levers f e13 hevi l ifis ow dafin e m efse id eamedgesiend @1112 tolengzige saidpilieto 5 0e]; saig ofckshaft against movement.

47 Thecombination with 12L computing 1 gfhe stetelefjsaid computinghemd, means ylna nipjulating saicl cpntrollingf meC ha A W 1315111, fa: plurality if key levere fon pperetijng "lid meansma 13111011} ohe offsz lidekeyy levers, tqslid rockl latches.

said latch from. said first-mentioned.

e8.'The comb1nat1on with a computing head, of controlling mechamsm for, governin g the state of said; computing head, means for actuating said controlling mechanism, a

plurality of keys for operating'said means,

a pair of latches for locking a pair of'said keys in depressed ,pOSllflOIl, a rock shaft securedto saidlatches, and a pair ofarms.

secured to said rockshaft and operable the others of said keys to release said d9. The combination with a plurality of computingheads, of a sourceof power, riving connections between said source of power and said computing heads whereby certain parts of all of said computing heads maybe drivenfr'om said source of power, said driv ing connections having means for reversal and interruption, so as to concomitantly reverse or' interrupt the action of all of said computing heads which may be acting, anda key for controlling said driving connections for reversal or interruption.

50. The combination with a computing mechanism, of a series of numeral keys, means rendered effectlve thereby for controlling said computing mechanism, a series of depressible keys other than said-numeral keys to]: temporarily and permanently selectively controlling the state of said computing mechanism, and means controlled thereby. .o

'51. The combination with a computing mechanism capable of existing under-a" plurality of states as to adding, subtracting and remainino neutral ofa airof he s means h 7 9 controlled thereby-for determining the same state of said computing mechanism, one of said keys enabling a temporary existence of said'computing mechanism in particular State, a d locking means acting automatically to catch and hold the other of said keys in its actuated position, to maintain said computing mechanism semi-permanently in a particular state. i

52. The combination with a plurality of computing heads, of an individual controlling mechanism for each of said heads for governing the state thereof, a'series of depressible keyscommon' to all'of said heads, anduneans controlled thereby for temporarily and permanently selectively governing concomitantly the state of all of said heads.

5 53; The. combination with a plurality of,

computing heads capable of existing indivld-ually in various states, of two keys for controlling the state of all of said computing heads collectively, one'of said keys acting to neutralize the state and the other of said keys acting .to reversethe state'of' all active computing heads, two other keys for also controllingthe state of all of said computing head collectively and in accordance with said first-mentioned keys, and means acting through the medium of said second-mentioned keys for preserving the respective states asdetermined by either of said first mentioned or said second-mentioned keys.

5%. In a computing machine, the combination with a plurality of computing heads, of a shaft, controlling means on said shaft for each of said computing heads to determine the state thereof, means for imparting move ment to said shaft, and means forsilencing said shaft and thereby. all of said computing heads.

55. In a computing machine, the combina -tion with a plurality of computing heads, of

a shaft, means for imparting differential movements to said shaft, means on said shaft connecting said shaft and each of said computing heads for determining the state of said-heads asto addition orsubtraction, and

. means for silencing said shaft and thereby all of said computing heads.

'56. In a combined typewriting and com puting machine, the combination withinvcrsing and disconnectingmeans, of depressible keys fortemporarily and permanently controlling said reversing and disconnecting, and a single shaft for all said keys whereby they are effective.

57. In a computing machine, the combinat1on of a plurality of computing heads, a

source of power, a shaft between said SOurCe of power and said'computing heads, controlling means on said shaft for each of said computing heads to determine the state thereof as to additlon or subtraction, and means for interrupting the connection be tween said source of power and said shaft to thereby silence all of said computing heads. p 58.'The combination with a plurality of computinghcads, of'a source of Power for said heads, driving connections between said source of power and said computing heads,

saiddriving connections including a member movable to different positions so as to reverse or interrupt the action of all of said computing heads according to its positions, means normally tending to hold said memher in position to cause activity of said computing heads, means for temporarily positioning said member against the tendency of said holding means so asto reverse the action of said computing heads which are active, means for detaining said member in said reverse position, and means brought into'action by said temporary-positioning I means acting, to render nugatory said detraining means.

59. The combination with a plurality of computing'heads, of a source of power for said heads, driving connections betweensaid source'of power and said computing heads, a

point, and at key adapte i computing-heads of e so urjce oi saidheads, driving connections be Ween said source oflpower and sand CQIHPUJCJJQQ heads,

berniovelble to ditfelrentpositions, sees to I reverseor interruptthe action of all of "said computing heads accordir means normally tendingm hoiclsaidmem;

1 her in posit-ion to cause activityoi said coniputing heads, means to temporarily position said member against the teiidency of ,sfli l holding meansto interrupt the action o-fij all f tendency of said holding"vmezil sgto reverse the actiolrof said comput HzT11e combination with in Computing enoyqof said holding means to moi e we hold said member inpositionto interrupt ftion of sztiti eoinputing heads which are vii-o twe, sald. temporarily inteyruzpting rile-t ns 1 ing meohanishghf a reversible for driv- 111;: said i master WhGi-llf reversible gearing for driving smdfitens-ciirn 111g1i1ec1i m1sni,

mentioned gee-rings including av pair of said driving it connections iiioludi'ng: a mm- 3 of saidjejon puting heads, means to temper rari1ypos1t1on 831d; member against the heads: which are actlve meaiis; acting againstvthe tend the action 1; of all of said coli puting heads, and means acting against the tendency of all saidliolclingdiieans to l iovevond hold said me nbei' iii position to reve isethe :ie-

and said tempoi'arilyweve 'siilg means (i-01L iiig means and said reversing-11o] ding means.

head having a: masteiwwheel and tens-carry;

gearing for driving said rst zmd second clutches sliii 'tableto .eoiitroliltl e otationot nationlwith two eom auting heads endmeaiis manually settable to separj; howsaid heads $113111 be efli'eeti e, .of a singlg shaft fontcontrollin g both said heads simuL 1 taiieou slv, 11 and a plurality] of keyswefi'eotive 011 saidshiaft reverse o interrupt: the it computing headsgaeoordm g towits positions;

position to interriipt theeetijoii of 3 all ofsaijcl said first and seeond mentioned gearings; a: keyadaptedfto,lshift s2 1ciflo1iitohes to one d to Isiiift said clutchesto anothei dpoint.

61. In a computliig iimjciii ne, the combi-l 62wThe combiriationiii it a pl iralitji o Power 51 011 saicl di li ngeonneotions; inoludiiig 2i member movaibleto diiferentg pjosltlonsgso as i to on of all of so-1 means to yielclingly iioldysaid memberin position to cause aetivity of saici computing heads, means to move z ndlock salt} member against the actioniof said wielding means i computing hezl dsmnd mezinsito temporarily i of all active computing heads; saici lasttrolofx said memberand holding it in the position towhichyit has been moved when position 1 saith member against the action o -15 Sald yielchng means to interruptwthe act on computing hea sald heads, dim

computing:hesids, of afsouree of power for said heads, driving connectionshetweeiisaid soureel ofpower oridtsa id computing heads, 1 said drivingeon iectionslii cliidingwameme? her inoveble to Iciifferent positioiis, so M; to f "computingi ea tis occordinglto itsfposition means to yield i gly hold said member heads, means to move 1 and lookcsziicl ineliiben 63. Thefcoinbiiietioii with jaifpluravlityfof of aso iree ofupowei-kforl 1 g connectionsbetiveensaici source of power and saicl computing 'hearls t said dLi ing connect-ionsincluding Ya H1813 I jbelf movable to(liifere itfpositions;[so asto I fre verse or interrupt the action Of iili of said computing heads according to its positions; means to hol fceusefaetivity of sz id computing lieadgsm means to moveand holdsaidqmember in poit sition to reverse the state ofietctivity of said id; iember;

position t 'seor interruptthe actionof e11 of said; i

means to hold saitt me ber in position toi 9O "use actn ityof sa d"eoinputmgljliieads, and

means tolmoifefaiidhold said meinberiin ag i position tofireverse the ,zietioni of all of Saki i flOfilpl l tilig hezi cis 1 which; ar 1 lae said means being ajyieldi ig means and the;

locking means.

i 65. The eombinationi 1th reverse or interriqat the action of in of said position to jCaUSG activity of i said competing wgainstti lthe Faction ofwsaid yielding means i i i! position to reverse the action: of alliofdj against the action of saidjyie1dingnieansto 1 IEVET SBWthGELG'CiOIi of heads which I are actiygsai st-mentioned positioning "mezuns taking :jcontrol ofxl said kill ; saint computing 115 member j and holding it ilijtliepositioii tor l i Whieh his been imovedui wher under the influence of said lock nguinea ns and acting ins,

in'a position so as to interrupt the action of all of saidcomputing. headspand means for moving and holding said member in a position to reverse theaction of allof said computing heads that are active. 67. In a combined typewriting and computing machine, the combination with a mechanism adaptedto subtract andto print, of a key eli'ective to cause said mechanism'to add, a latch adapted to holdsaid key eliec" tive when depressed, and a second key similarlv effective andadapted to release said first-named key when operated. I i

68. In a computing machine, the comz-inw tion with numeral keys and state-controlling keys effective to control the state of the computing connections, of separate latches for said state-controlling keys, and a single shaft universal .to saidlatches to, release 69. The combination with a plurality of computing headset a source of-power for said heads, driving connections between said source ofpo wer and said computing heads,

said driving connections including a member movable to different; posltions so as to reverse or interrupt the action of all of said computing heads according to its positions;

means for positioning said member so as to reverse the action of all ol'flsaid computing heads, a second means for positioning'said member so' as to reversethe action of all of said computing heads, and means brought into action on movement ofs'aid second-mentioned means, to hold said member as positioned by eitherot said lirstor secondmentioned means. i v

70. The combination with a plurality of computing heads, capable or existingindividually in various states,of means for con trolling the state'of all ofsaid computing heads collectively, a second means for controlling the state ofall of said computing heads collectively, and means brought into action througrh'the mechumof said secondmentioned 'means, for preserving the states as determined by either of said lirstor seeond-mentioned means. I s

71. The combination with a plurality of computing headsioi' a source of power for I said heads drivinrr connections-between said source of power and said'computing heads, said driving connections including, a memher movable to different. positions so as to reverse or interrupt the action of all of said computing heads according to; its positions;

means normally tending to hold said member in position to produceone' state or said 1 computing heads, means forpositioningsaid member against the tendency of said holding meansto vary the state: of saidcomputing heads as determined by'said first-mentioned means, another means 'for also positioning sald member against the tendency of said holding meansto vary the state of said computing heads as determined by said first- I mentioned means, a detaining means brought into action through the medium of said lastmentioneu means'to detain said member as posltioned by either of said first or secondbrought into action through the mediumof SELlCl second-mentioned positioning means to render ineffective said detaining means to thereby restore said member to the action of said holding means. x

72. The combination with a plurality of computing heads, or a source of power for said heads, driving connections between said source of power and said computing heads, said driving-connections including a member movable to difierent positions so as to reverseor interrupt the action of all of said computing heads'according to its positions; means normally tendin bar in position to cause activity o'lt' said computinir heads, means for temporarily positioning said memberagainst' the tendency of said holding'means to reverse the action of all of said coinputing heads which areactive. and means for movingand deraining: said member in position to reverse the action of SEHCl computmg heads.

73. The combination with .a plurality of computing heads, of a source of power for said heads, driving connections between said source of power and said computing heads, said driving connections including a member movable to different positions so as to reverse or' interrupt the action of all of said computing heads according to its positions; means for moving said member to a position so as to interrupt the action of all of said computing heads, and means for move inn said member to a position .to reverse the action of all of said computing heads which are active. 1 p

' 7%. T he combination with'a plurality of a to hold said mem- 'mentioned positioning means, and means computing; heads, of .a source of power for said heads, driving connections between said source "of power and said computing heads. said driving connections including a member movable to different positions so as to reverse or ilmierrupt the action. of all of said computing; heads according to its positions: means normally tending to hold said member inposition to cause activity of said computinaheads, means for temporarily positioninr; said member against the tendency of said holding means so as to interruptthe action o'f'all of said computing heads, and means forinoving andholding saidmember in position to reverse the action of all oi said computlng heads which are active. I i i 75. The combinationwith a plurality of computing heads, of a source of power for said heads, driving connections between said

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