US857889A - Adding-machine. - Google Patents

Description

PATENTED JUNE 25 1907.

L. S. MUNGEIL.

ADDING MACHINE.

APPLICATION FILED MAY 21, 1906.

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Jimmie? LemyS. Mzmyer 6 SHEETS-SHEET 2- PATENTED JUNE 25, 1907.

L. S. MUNGER.

ADDING MACHINE.

APPLICATION FILED MAY 21. 1906.

uw W v u n Q W @V [w I. x 1| 1 x y mm 3 w? l wwk j m? wfi 1 k o .l a A? sq v, W%\ Wm WM M 1TH m g (Y 2 W ww Q MK PATENTED JUNE 25, 1,901.

L, s. MUNG-ER. ADDING MACHINE. AIPPLICATION FILED MAY 21,1906.

6 SHEETS-SHEET a.

R m xw IIMU M wa xE r a f Q Z xv m l mi w PATENTED JUNE 25, 1907.

L. S. MUNGER.

ADDING MACHINE.

APPLICATION FILED MAY 21,1906.

6 SHEETS-SHEET L.

f/yveni'or, L emy A. Manger wax PATENTED HD1325, 190?.

L. S. MUNGBR.

ADDING MACHINE.

APPLIOATION FILED MAY 21, 1906.

6 SHEETSSHEET 6.

L eMy ZZ ZZ ZEr PATENTED JUNE 25, 1907 L. S. MUNGER ADDING MACHINE.

APPLICATION FILED MAY 21,1906.

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.[11 we #01; L ray A? Manger ll/l'inessea:

. andin order that it may boldt, in the county Kansas, have invented certain new and usetion with any standard typewriting machine numeral key effecting both the consisting of a master wheel, the adding wheels with their lock and its trip,

LEROY-S. MUNGER, or HUMBOLDT; KANSAS.

ADDING-MACHINE.

. Specification of Letters Patent.

Patented June 25, 1907.

Application filed M... 21,1906. Serial No. 317,951.

To alt whom it may concern.

Be it known that I, LEROY S. MUNGER, a citizen of the United States, residing at Humof Allen and State of ful' Improvements in Adding-Machines, of which the followin is a specification.

My invention relates to that class of adding-machines adapted to be used in connecnow on the market, but if desired may be sup lied .with key-levers and used independent y of said typewriting machine.

The invention embodies a series of addingwheels and a 'mastePwheel, which latter is ada ted to successively engage and operate, sai 'addingwheels-so thatthe amounts of the item's written upon the typewriter are simultaneously added, the depression of a writing of the number and its registration. The registering mechanism, moreover, can be moved into ing-wheels.

or out of operative position at the will of the. operator, so that the typewriter can be used to record'dates or totals without disturbing the adding mechanism.

, To this end the invention comprises the actuating mechanism by which the depression of a key-lever sets in motion instrumentalities' which register and add its number; the

motor, and winding mechanism by which power is stored therein by the return movement of the carriage; and the registering mechanism connected with the above and the resetting mechanism, and the carrying mechan- The invention further consists in the novel construction, combination, and arrangement These parts will be described below in the order given. l

showing the mechanism for restoring the adding wheels to normal. Fig. 5 is a vertical transverse section on line V-V of Fig. 4. Fig: 6 is a broken plan view of that portion of the addingmachme underlying the typewriter. F'i f. 7 is a broken transverse section on line VIf-VII of Fig. 6, showing means tor-wheel em loyed in operating the add- I lii 8 is a cross-section on line V II-VIII of Fig. 6, showing part of a train of gear-wheels for operating the masterwheel. Fig. 9'is a detail plan view of a portion of the carryingmechanism employed in carrying out the invention. Fig. 10 is a section on ine X X of Fig. 3, showing a springmotor and a cog-wheel forming part of a train of ear-wheels for driving the masterwheel. Figs. 11 and 12 are enlarged transverse sections on lines XI-XI and XII- XII, res ectively, of Fig. 6, showing a slotted-r0 ler for limiting the movement of the s ring-motor and said train. Fig. 13 is a detail front elevation of the master-wheel and a yoke for shifting said gear to and fro upon its shaft. kil -XIV of Fig. 1, showing a portion of the gearing for shifting said yoke and winding the s ring-motor. Fig. 15 is a detail of one of t e locking devices for holding the adding-wheels'from accidental movement.

A designates the frame of a typmvriting machine, of any standard make, provided with a carriage-scale B and numeral keylevers 1 2 8 4 5 6 7 S and 9 for printing corresponding numbers. In the application of my invention thereto, said key-levers have depending stems 10 provided with inverted heads 11 rigid with their lower terminals and arranged in a row as shown in Fig. 6.. Activating 'mc07za'r27 is1n.12 designates a of parts hereinafter described, claimed, and slotted-roller underlying the key-stems and lar vertical transverse section ofthe adding- I i on. line ll il otFig. 3. Fig.

1 g t oi same with the case in section, said. section. losing taken on line iii- Elli of Fig. 2. Fig. a is. an enlarged broken longitudinal section on line-IV-IV of Fig 3,

provided with peripheral slots 13 14 15 16 17 1S 19'20and 21. which vary in length from one to nine-tenths of the periphery in the order above enumerated. Said slots terminate in rectangular o )e-nings 22 23 which latter communicate wit '1' the forward terminals of said slots and are arranged in a row beneathhe'ads 1.1 to receive thesame one at a'time, when thekey-levers are de ressed. By providing the keys with heade. stems none of the latter can become disengaged from their respective slots until the roller has turned the length of the engaged .sl0t,. it also for limiting the rotary movement of a mas- Fig. 14 is a section on line insures the proper operation of the addingmachine as one lever cannot be depressed while another has its stem in engagement with its respective slot. As shown in Fig. 6 the slots are arranged according to their length in proper relation to the key-levers, for instance, slot 13 which extends around but one-tenth of the periphery of roller 12 is arranged. beneath lever 1, while slot 21. which extends around nine-tenths is placedv beneath key 9.

Roller 12 is mounted upon a shaft 24 and restored to normal by a spring 25, after being turned forwardly as hereinafter described. Said'spring is secured at its ends to shaft 24 and the adjacent side of a vibratory frame 26. Backward movement of the roller is limited by a radial pin 21, projecting therefrom, and a stop 23, the former impinging against the latter after openings 23 have been returned in coincidence with heads 11 as shown in Fig. 6.

Frame 26 comprises a pair of bearings 29 in which shaft 24 is journaled, a longitudinal bar 30 carrying bearings 29 and stop 28, a pair of arniis 31 extending rearwardly from said bar, and longitudinal bar 32 carried by the rear ends of arms 31. Bearings 29 have trunnions 33 mounted in a supporting frame 34, and bar 32 is provided with a series of 'upwardlyextending seats 35 in which l ey-levers 1 to 9, inclusive, rest, thus when any one of said levers is depressed frame 26 "will be rocked upon its trunnions and move roller 12 upwardly to meet the descending lrey stem so that the latter may engage its respective slot. W hen the key-lever is released and returns to its normal position the entire rear portion of frame 26 will be overbalanced by its heavier forward port-ion and said rear portion will move upwardly with said key-lever until the latter comes to rest. Seats 35 are provided with flanges 36 loosely embracing the sides of the key-levers to prevent lateral movement of the latter upon said seats. Frame 34 is provided with sockets 37 to receive the feet of the typewriting machine so thatthe latter cannot shift upon said frame. i

38 designates an arm (Fig. 12) fixed at its rear end to the righthand trunnion 33, and having its forward end curved upwardly and terminating noartho lower end of an adjustable serew 39 extending through. a detent 40 having its rear end normally held in engagement with an escapc-wheel 41. by means of a retractilespring 42.

One end of shaft 24 extends through arm 33 and is provided with a fixed pinion 24' which is raised upwardly into mesh with a cog-wheel 43 when the rear end of frame 26 is depressed by a keydevor Screw 39 is so adjusted that when one of the key-levers say, for instance, lover 6 is depressed arm. 38 will engage and move said screw 39 upwardly to disengage detent 40 from escape wheel 41 just after pinion 24 intermeshes with cogwheel 43. When the latter operation occurs the cog-wheel 43 will rotate the pinion and the slotted roller until the movement of said roller is arrested by the end of slot 18 contacting with the engaging key-stem. Keylever 6 will then be free to move upwardly out of engagement with said slot and permit the forward end of frame 26 to swing downwardly and carry pinion 24* out of engagement with wheel 43, and arm 38 out of engagement with screw 39 so that spring 42 may throw the detent upwardly into engagement with the escape-wheel and thus prevent further rotation of the latter. Screw 39 is so adjusted that the detent will engage the.escape wheel before pinion 24 has fully disengaged wheel 43. From the above it will be understood that the rotary movement of the slotted-roller is limited by the length of the slots therein and their respective key-stems.

ll1'0i0r.Esoape-wheel 41 and cog-wheel 43 (Fig. 3) are fixed upon one end of a countershaft 44, provided at its opposite end with a fixed pinion 45 driven by a cog-wheel 46 loosely mounted upon a'main shaft 47, intermitt-ently driven by a spring-motor 48, one end of which is secured to said shaft while its opposite end is fixed to the base 49 of a case 50 inclosing the adding mechanism. (See Fig. 10.) Spring 43 is normally held from unwinding by escape-wheel 41 and the intervening train of cog-wheels, the diameters of'which are such that when roller 12 rotates nine-tenths of a revolution cog-wheel 46 will rotate but a small fraction of this distance.

l'l i'nding meclzan'ism.Spring-moto1 48 is wound when .the t ypewriter-carriage is moved to the right, through the instrumentality of a train of gearingeomprising a rack-bar 51, a pinion 52 meshing therewith and fixed upon one end of a shaft 53, (Figs. 1 and 4) a cogwheel 54 also fixed upon said'shaft, a raele bar 55 having two rows of teeth 56 57 the lattor of which meshes with cog-wheel 54,.

while the former meshes with a cog-wheel 58 fixed upon one end of a shaft 59, a bevelgear 60 fixed upon the opposite end of shaft 59 and intermeshing with a ,similar bevelgear 6] fixed upon the upper terminal, of a siiaft' 62, a bevel-gear 63 (Fig. 3) fixed upon the lower end of shaft 62 and intermoshing .with a bevel-gear 64 loosely mounted upon shaft 47, a ratc-liet-wheel. 64" fixed to said shaft, and a pawlv 64" carried by cog-wheel 46. Pinion 52 is elongated as shown in Fig. 14., so that when the carriage is shifted bachwardly from the lower to the upper case of letters rack-bar 51 will not pass backwardly far enough to disengage said pinion.

The-left end of rack-bar 51 loosely embraces scale B to which it is adjustably secured by a set-screw 65, so that when it is desired to arrange the carriage for printing columns of figures either at the left or right side of the paper said carriage may be shifted by loosening screw 65, without disturbing the proper relation of the rack-bar with pinwithpinion 52 by an overlapping clip 68 secured to the upper portion of a bracket 69 fixed to the upper portion of the typewriter. Bracket 69 is provided with a guide 70 which embraces rack-bar 55 and holds it in mesh witlrwheel- 54. Bevel-gear 64 is provided with a stud 71 adapted to engage a pin 7'2 projecting radially from shaft 17, and thus rotates the latter to wind the spring-motor when said bevel-gear turns in the direction indicated by the dotted arrow, Fig. 3.

The above described mechanism allows spring-48 to be wound without disturbing cog-wheel 46', roller 12, or. the intervening train ofgearing, as pawl 64" permits the ratchet-wheel 64 to turn and wind the springmotor without affecting cog-wheel -16. Ratchet wheel 64 pawl 6i, cog-wheel a6, and the train of gear-wheels between said cog-wheel and escape-wheel 4:1 prevent the spring-motor from unwinding until detent 40 is tripped out of engagement with the escapewheel.

Master wheel-75 designates a pinion inter meshing with and driven by tog-wheel 43. Said pinion is the same diameter as pinion 24* so that it will turn the mastengear-wheel '78 an equal distance with roller 12, and is fixed upon. one end of a shaft 76 extending through case 50- and. journaled in the sides thereof, said shaft being rectangular in crosssection throughout its length except at its journaled ends so that the master-wheel may sl'ide thereon and turn therewith.

77 designates a yoke (Fig.1.?) embracing the sides of master ear-wheel 78 for the urpose of shifting the latter upon shaft 76. Yoke 77 held in an upright position by-two guide-bars 79 (Fig. 3) upon which it slides, it being moved to and. fro upon said guide-bars by an arm 80 normally secured to rack-bar -55 by a set-screw 81-+Fig. 1.v Yoke 77 is provided at its front side with a stud S2 and at its rear side with a rearwardly projecting arm 83 anda lug 84 which latter has a bevel surface .85.

Adding wheels- 86 87 8 8 89 designate addi operation.

ingwheels representing tenths, units, tens and hundreds, respectively, and consisting of disks 90, each of which bear numerals "0. to 9, and cog-wheels 91, which latter are arrangedto be engaged and turned, one at a time, by master-wheel 78 during an addin Said adding-wheels are journaled upon a shaft 9'3 which extends loosely through a frame 93 and one side of case 50, its outer end having a knob 94 and a pin 95 which latter normally engages a slot 96 in a socket 97 to prevent the shaft from turning with the adding-wheels.

Locln il'hen master-wheel 78 is at the end of its movement to the left, the teeth of cogwheels 91 are held in alinement by a plurality of detents 105 so that said master-wheel may successively mesh with the cog-wheels as it moves to theright. upon 'pintles 106 journaled in the front side of casing 50 and in a bar 107 in which said. pintlcs fit frictionetight so they will not accidentally turn in th ir bearings. Bar 107 is secured to the rear side of frame 93.

Lock Trip-The detents are thrown in and Detents 105 are fixed out of engagement with the cog-wheels through the instrumentality. of the stud 82 on yoke 77 and a plurality of bell-crank levers, which latter are fixed upon the pintles and comprise arms 10S 109-'Fig. 1 5. \Yhen the master-wheel moves to the right and successively engages the cog-wheels arms 108 stand upwardly in the path ofstud 82, thus its the master-wheel engages each cog-wheel said stud will release the same so that it may rotate with the master-wheel.

1? esetti'n g nwc7ian ism.- After completing the addition of a column of items it maybe desirable to restore the adding-wheels to normal preparatory to adding another column, so I provide shaf t 92 with a-series of radiallyextendiug pins 98 which are drawn into con tact with the adjacent sides of the disks when the shaft is pulled outwardly to witl'rdraw pin 95 from slot 96 as shown by dotted lines Fig. 4. This also brings them in the path of lugs 99-011 the disks, so that by turning the shaft in the direction indicated by the arrow, Fig. 5, said pins 98 will contact with the. lugs and turn the adding-wheels until the lugs contact with a like number of stops 100 which" prevent further rotation of the adding-wheels and cause them to stop with their ciphers in coincidence with a sightslot 101 in. ease 50. This also brings pin 95 in coincidence with slot 96 so that when the knob is released an and thus depress the latter.

lower end of which loosely engages the shaft but is caused to move in and out therewith by collars 104.

108 109 designate arms comprising bellcrank levers fixed to the intles 106 for the purpose of throwing the (etents in and out of engagement with cog-wheels 91. When the master-wheel is at the left the bell-crank levers arms 108 are up ermost so that when said master-Wheel is s ifted to the right to add an item, stud 82, which is in advance of the master-wheel, will successively depress said arms and cause them to' throw detents 105 out of engagement with cog-wheels 91 so that the latter may be rotated by the master-wheel. The depression of arms 108 brings arms 109 uppermost, as shown in Fig. 1, so that when the master-wheel is shifted to the left stud 82 will successively depress said arms 109 and cause them to throw the detents into engagement with cogwheels 91 as the master-wheel passes out of engagement with each of the latter. Arms 109 are thinner than arms 108 so they may swing up or down without contacting with studs projecting rearwardly from bar 103 for the purpose of unlocking the addingwheels preparatory to restoring the latter to normal and for locking the same after being restored. As the restoration ofthe addingwheels to normal is accomplished when the master-wheel is at the left end of its movement, it follows that arms 108 are uppermost and in the path of studs 11.0, hence when bar 103 is drawn outwardly said studs will depress arms 108 and thus unlock the adding-wheels., After the latter have been restored to normal they'are locked on the inward movement of bar 103, which, carrying the studs 110 to the left, cause them to engage shoulders 109 integral with arms 109 As bar 103 moves a short distance to the left after arms 109 have been lowered to a horizontal position, studs 110 will be carried far enough to the left of shoulders 109 to permit the latter to swing upwardly without contacting with said studs when arms 108 are depressed by stud 82.

Carrying mechanism.-The disks of ad dingwheels 86 87 and 88 are provided with peripheral studs 111 which are brought into engagement with the upper surface of the rear terminals of a like nunrber of trip-levers 112 when. the adding-wheels are restored to nor-- mal. Said trip levers are pivoted at their forwardrnds upon a rod 113 secured in a pair of standards 114. The trip-levers are provided with lugs 115 extending to the left and engaging shoulders 116 on the forward ends of pull-bars 117 underlying addingwhecls 87 88 89 and extending through slots 118 119 in the front side of frame 93 and a guide-bar 120, respectively. Pull-bars 117 are provided with slots 121 in which are pivotally secured rack-bars 122 which engage the cog-wheels of adding-wheels 87 88 89 after the detents 105 have been thrown out of engagement with the same, and thus alternate with said detents in holding the teeth of the cog-wheels in alinement so that the master-wheel may successively mesh therewith. Said rack-bars also cause the addingwheels to carry-over as will hereinafter appear.

The teeth of the adding-wheel 86 are held in alinement with those of the other cogwheels by a rack-bar 122 pivotally mounted in a slot 121 in a stationary bar117 -Fig. 3. All of the rack-bars are raised into engagement with the adding-wheels by means of crank-arms 123 (Fig. 2) pivotally mounted upon a red 1241 and provided with shoulders 125 126 which limit their upward and downward movements. The crank-arms are raised and lowered by connecting-bars 127 pivotallyv secured at their opposite ends to sa1d crank arms and arms 128, which latter are fixed upon upright pintles 129 mounted in bearings 130. When the connecting-bars are pushed forwardly they raise the crank-arms until shoulders 125 contact with said connecting-bars, and when the latter are drawn backwardly they lower the crank-arms until shoulders 126 engage the forwardly projecting ends of said connecting-bars. When the crank-arms are lowered the rack-bars drop out of engagement with the cog-wheels and rest upon pins 133 extending across slots 121 121.

The pintles 129 are alternately turned to the right and left by bell-cranl levers fixed to their upper portions and in order to prevent said levers from contacting with each other I arrange them in different planes as shown in Fig. 2. Said levers comprise arms 131 132 which latter project into the path of the lower end of arm 83 on yoke 77 7 when it is at the left of said levers. When the master wheel, in moving to the right, passes out of mesh with a cog-wheel 91 the latter will be immediately locked by its respective rackbar which is raised into mesh therewith by arm 83 contacting with arm 132 and pushing the same rearwardly to the position shown in Fig. 3. The rearward movement of arm 132 swings arm 131 into the path of arm 83, so that when the latter moves to the left with the master-wln cl the cog-wheel 91. will be unlocked as the master-wheel moves into mesh therewith.

When an adding-wheel, say for instance 87, conn'iletes a revolution its stud. 111 will engage the underside of its respective triplever and raise the latter until its lug 115 disengages the pull-bar underlying adding wheel 88. Thus released the pull-bar will be drawn forward by its spring 134, until its shoulders 135 contact with a plate 136 on the front side of frame 93. As the pull-bar wheel will not shift with the carriage.

smgess moves forwardly it will turn adding-wheel 88 they registered. nine hundred and ninety nine and nine tenths, and one more was to be added the carrying-over would take, place throughout the series in proper sequence.

Operation: In practice the master-wheel is shifted to the left by moving the carriage to the right preparatory to printing and adding a column of figures, this throws detents 105 into engagement'with the adding-wheels'and rack bars 122 out of engagement therewith.

Assuming, now that the item to be added is 125.6 the carriage is shifted until the master Wheel engages the first 'adding-wheel'to the left, which'represents ,the highest denomination. Key 1 is then depressed until its stem enters slot .13, and arm'38 releases detent 40 from the escape-wheel 41. Thus released thespring-motor 48 will rotate the master-Wheel and the slotted-roller until the rear end of slot 13' contacts With the engaging key-stem, releases the latter and permits it to to rise With-its lever As said lever moves up- .wardly the carriage through arm 80 automatically shifts the master-wheel into engagement I with the next adding-wheel which is then turned two tenths of a revolution when key 2 is depressed. Thus by successively depressing levers 1, 2 5ithe decimal key, and lever 6, the adding-wheels will accurately add the above mentioned item to the one previously print ed. When it is desired to print the total of 'a column of items without disturbing the adding-Wheels 'themaster-wheel is shifted either to the extreme left or right and either screw or-Sl is loosened so that said mastep S the adding-wheels are never operated through the action of the decimal key-lever a .space is left between wheels 86 87 equal to the space between wheels 87 89, sothat after numeral five of the above-mentioned item has been printed the master-wheel will be shifted, through the action of the carriage, midway between wheels 86 87, and after the decimal has peen printed said master-wheel will be shifted into position to rotate wheel 86 and cause it to add the siiotenths. By providing spring-motor 48 to actuate the adding mechanism the spacing mechanism of the typewriter will be relieved of all extrawork except that of shifting the master-wheel, and

. consequently the speed ofthe typewriter will not be materially diminished. As the carriage is only shifted about one-tenth of an inch by the depression of a key-lever while the master-wheel must move about fiveeighths of an inch in order to move from one adding-wheel to another, the length of the steps taken by the latter are compounded by properly proportioning pinion 52 and cog wheel 54.

Having thus described my invention,

What I claim and desire to Secure by Letters- Patent, is:-

1. In an adding machine, a series of toothed adding-wheels having a single set of I teetl'i, locking mechanism for normally engaging said teeth to,hol d them in alinemenh'a master wheeladapted to successively engage the same set of teeth, means for rotating said master-wheel, a member for shifting the master-wheehand means interposed between said member and the locki-n mechanism [whereby the latter .is' operate by the former.

2. In an adding-machine, a series of toothed adding wheels having a single set of teeth, detents for normally engaging said teeth to hold them in 'alinement, a master-wheel adapted to engage said teeth, means for rotating said master wheel, a member embracing said 'masterwheel, me ans for shiftingthe yoke and masterwheel for throwing the latter successively into engagement with the teeth, and means interposed'between said member and the detents whereby the latter is operated by the former. a 3. In an adding-machine, a series of toothed adding-wheels, detents for normally holding the teeth of said adding-Wheels in alinement, a master-wheel adapted to engage said teeth, means for rotating said master-wheel, a member for successively shifting the master-wheel into engagement with the teeth, and means interposed between said member and the detents where by the latter are successively disengaged'from the teeth as the master-wheel shifts in one direction, and are successively thrown into engagement with said teeth when the master-wheel shifts in the opposite direction.

4. In an adding machine, a series of toothed addingwheels, detents for normally holding the teeth of said adding-wheels in alinement, a "lllflS'tGT-ViillQGl adapted to on gage said'teetlnnieans for rotating said mas ter-wheel, a member for successively shifting the master-wheel into engagement with the teeth, bell-crank Y'revers for operating the detents, and means interposed between the shiftable member and said bell-crank levers whereby the latter are actuated by the former. 1

5. In an a(ldingmachine, a series of adding wheels having a single set of teeth, locking mechanism for normally engaging said teeth to hold them in aline'ment, a masterwheel adapted to engage said teeth, and 1'0- tate the adding-wheels, a yoke embracing said masterwheel, means for shifting the yoke and master-wheel for throwing the latter successively into engagement with the teeth of the adding-wheels, and means interposed between said yoke and the locking mechanism whereby the latter is actuated by the yoke.

6. In an adding machine, the combination with a series of adding wheels having teeth, carrying mechanism between them, a master wheel, and means for successively moving the latter into engagement with said adding wheels and rotating them; of detents adapted to engage said teeth, means connected with the master-wheel for tripping the detents, resetting mechanism,-and means connected therewith for-engaging all the detents with their adding wheels.

7. In an adding machine, the combination with a series of addingwheels having teeth, carrying mechanism between them. a masterwheel, and means for successively moving the latter into engagement with said adding wheels and rotating them; of detents adapted to engage said teeth, and means connected with the master-wheel for tripping the detents' as it'moves in one direction and resetting them as it returns.

S. In an adding-machine, the combination with a typewriter and its carriage, oi a series of adding-wheels, a master-wheel adapted to successively engage and rotate said adding 1 wheels, a motor for turning said masterwheel, a rack-bar carried by the typewriter carriage, gear wheels driven thereby for winding the motor, and means interposed between said gear-wheels and the master-wheel whereby the latter is shifted by the former.

9. In an adding-machine, the combination with a typewriter and its carriage, of a-scries of adding-wheels, a master-wheel adapted to successivelyengage and rotate said addingwheels, a motor for turning said. master- 'wheel, a rack-bar adjustably connected with the typewriter carriage, gear-wheels driven thereby for winding the motor, and means interposed between said rack-bars and the master-wheel whereby the latter is shifted by the former.

'10. In an adding-machine, the combina-.

senses wheels driven thereby, a second rack-bar shifted at an increased speed by said gearwheels, an. arm detachably secured thereto, and a yoke carried by said arm and embracing the master-wheel.

13. In an adding-machine, the combination with a typewriter and its carriage and key-levers; of. a series of adding wheels, a master-wheel adapted to successively engage and rotate said adding-wheels, a spring-motor for rotating said master-wheel, a train of gearing actuated by the typewriter carriage for winding said s ring-motor, an escape ment connected wit said train for normally locking said motor, and means controlled by the key-levers of the typewriter for releasing said escapement.

14. In an adding achine, a series of add.- ing-wheels, a member adapted to successively rotate said adding-wheels, a motor for actuating said member, a roller controlling said' motor and havin a series of slots of different lengthswith en largements at their extremities, stems havin headsadapted to said enlar ements and of said roll er, key-levers carrying said stems, and means for restoring said roller to normal.

15. In an adding-machine, a series of adding-wheels, a member adapted to successively rotate said adding-wheels, a motorcl or actuating said member, a roller controlling said motor and having a series of slots of different lengths with enlargements at their eX- tremities,' stems having heads adapted to said enlargeinei'its and limiting the rotation of said rollers, a spring for restoring the roller to normal, and ineans'lor limiting the action 01''" said spring. I

16. In an adding-machine, the combination with a ty .;writer and its carriage, and l -levors; oi a series ol adding-wheels, amaste1-wheel adapted to successively engage and rotate said adding-wheels, a motor for rotating said in aster-wl'l eel, means for winding the motor from the carriage, means for normally locking said. motor, a vibratory member for releasing said means, a roller carried by said vibratory member, and connections between. key-levers and. roller.

17. In an addinganachine, the combina tion with a typewriter and its l;eylevers; oi

limiting the rotation actuating 1 a series of adding-wheels, a master-wheel adapted to successively engage and rotate said adding wheels, a motor for rotating said master-wheel, means for normally locking said motor, a vibratory frame and a slotted roller therein actuated by key-levers of the typewriter for releasing said means.

18. In-an adding-machine, the combina- "tion with a typewriter and its key-levers; of

a series of adding-wheels, a member ada ted to successively rotate said adding-whee s, a motor for actuating saidmember, a'springactuated roller for cont-rolling the action of {the motor by-the'degree of its rotation, and

connections between certain key-levers and the roller for respectively limiting the rotation of the latter.

19. 'In an adding-machine, a series of adding-wheels, a member adapted to successively rotate said adding-Wheels, a motor for said member, a check for the motor, a ro er also controlling said motor, and means for alternating the connection of the check and roller with the motor.

20. In an adding-machine, a series of add engage, an escape wheel connected with the motor, a detent, and means for disengaging the detent from the escape wheel when said gears engage.

22. In an adding-machine, a seriesof adding-wheels,'a member'adapted to successively rotate said adding-wheels, a motor for actuating said member, a slotted roller controlling said motor, stems enga ing the slots and limiting the rotation of said roller, and keyvlevers carrying said stems.

23. In an adding-machine, a series ofyaddingwheels,-a member adapted to successively rotate said adding-wheels, a motor for actuating said I nembe r, a roller controlling said motor and havin peripheral slots of different lengths, keyevers, stems carried thereby for engaging said slots, and means [for preventing more than one slot being engaged at atime.

24. In-an adding-machine, aseries of a'dd ing wheels,- a member adapted to successively rotate said adding-wheels, amotor for actuating said member, a roller controlling said .:motor; and having slots with enlargements,

said motor, gears between them nor-. mally 'sengaged, a swinging frame supporting the rollerand permitting said gears to.

rack-bars into engagement with stems having heads adaptedto saidenlar'gements and limiting the rotation of said roller, key-levers carrying said stems, and means for restoring said roller to normal.

25. In an adding-machine,,'a series of adding-wheels, a member adapted to successively rotate said adding-wheels, .a motor for actu-.

ating said member, a roller controllingsaid motor, and having slots with enlargements, stems having heads adapted to said'enlargements and limiting the rotation of said roller, a spring for restoring the roller to normal, and means for limiting the action of said spring.

26. In anadding-machine, aseries of toothed adding-wheels, a master-wheel adapted to successively engage and rotate said a ing-wheels, rack-bars adapted to engage and hold the teeth of they adding-wheels in alinement, and means for throwing the rack-bars into engagementgvith the teeth. I I

2.7. In an addin -machine, a series of toothed adding-whee s, a master-wheel adapted to successively engage and rotate said adding-wheels, rack-bars adapted to engage and hold the teeth of the adding-wheels in alinement, and means for successively throwing the rack-bars into engagement with the teeth.

28. In an adding-machine, a series of toothed adding-wheels, a master-wheel adatpted-to successively en age and rotate said a ing wheels, pivotal y mounted rack bars adapted to engage and hold the teethof the adding-Wheels in 'alinement, crank-arms for throwing the rack-bars into engagement with the adding-Wheels, and means for operating said crank-arms.

29. In an addin -machine,' a series of toothed adding-whee s, amasterwheel adapted to successively on age and rotate said adding wheels, pivotafiy m'ounted rack bars adapted to engage and hold the teeth of the adding-wheels in alinement,- crank-arms for throwing the rack-bars into engagement with the adding-wheels, connecting-bars for operating said crank-arms, bell-crank levers for actuating said connecting-bars, and means for operating said bell-crank levers.

IIO

- 30. In, an addin machine, .a series of toothed adding-whee s, amaster-wheel ada ted to successively engage and-rotate said a din -wheels, rack-bars adapted to engage and no (1 the teeth of the adding-wheels in alinement, a membertor shifting the master-wheel, and means interposed between said member and the -rack-bars whereby the latter are: thrown into enga ement with theteeth.

31. In an addingmachine, a series of toothed adding-wheels, rack-bars engagin said adding-wheels, means for throwin sai wheels, connecting bars for operating said the ad dingmeans, arms pivotally secured to the con- In testimony whereof I effix my signature, necting-bars, bell-crank levers folr operatlng in the presence of two Witnesses.

said arms a slidable master-whee for succesr k sively engaging and rotating the adding- LERO1 MUNGER Wheels, a member for sliding the master- Witnesses: Wheel, and means carried by said member for H. O. CASTER,

' mtuating the bell-crank levers. A. C. CATHOART.

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