US1001698A - Combined type-writing and calculating machine. - Google Patents

Description

- J. A.. SMITH. V COMBINED TYPE WRITING AND GALGULATING MACHINE.

Patented Aug. 29, 1911.

5 SHEETS-*SHEET 1.

APPLIUATIOK FILED AUG. 27. 1907.

wild Lewes 7 1:11. SMITH, COMBINED TYPE WRITING AND CALCULATING AOHINE.

-1 APPLICATION FILED AUG-27.1907.

Patented Aug. 29, 1911.

5 SHEETS-SHEET 2.

wwgvpgoz 1 I 1 &

- q Wtmowa 4 J. A. SMITH. COMBINED TYPE WRITING AND CALCULATING MACHINE APPLIUA'lfION FILED ATTG. 27, 1907.

6 SHEETS-iii 3.

J. A. SMITH.

GOMBINED TYPE WRITING AND CALCULATING M AOHINE. v Patented Aug. 29, 1911.

APPLICATION FILED AUG. 27. 1907.

5 SHEETS-SHEET 4,.

. J. A. SMITH. COMBINED TYPE WRITING AND CALCULATING MACHINE.

APPLICATION FILED AUG. 27. 1907.

Patented Aug. 29, 1911.

6 SHEETS-SHEET a. V

UNITED STATES PATENT OFFICE.

JOHN A. SMITH, F HARRISBURG, PENNSYLVANIA; LSSIGNOB TO ELLIOTT-FISHER compan or NEW roux, N. Y., A coarourron or nnmwnm. comnmnn 'rrrn-wnrrmo AND oancuu'rme micnnv'n.

Specification of Letter: we Patented Aug, 29, 1911,

Application flJ-ad August, 1907. lax-10.1 No. 890,880.

To all whom it may concern:

Be it known that I, Jonx 1L SMITH, a citizen of the ,United States, residing at Harrisburg; in the county of Dauphin and State of Pennsylvania, have invented a new and useful Combined Type-Writin and Calculating Machine, of which the Ollowi is a specification.

' condition either key may be operated inother, their operationhis. invention relates to a combined ty-pewriting and calculating machine, and more partlcularly to mechanism for controlling the automatic connection of the typewriter keys with the addin mechanism and the automatic spacing o the carriage over the decimal point.

In Patent No. 922,559 to Herbert D. Bol ton is disclosed a controllin or setting mechanism common to both the automatic 'key connecting mechanism and the auto mat1c-dec1mal spacing mechanism and operated by a single kev which is movable to any one of three positions; to render both of said mechanisms effective, or both ineiiective, or one eflective and the other ineffective, accordingly as it is desired to. add, Write, or print a total. The Bolton mechanism was designed for the equipment of What is known to commerce as the Elliott- Fisher billing machine, but necessitated more or less modification of the automatic key connecting mechanism as well as of the decimal spacing mechanism} commonly em- )loyed. Furthermore, the movement of the olton controlling key in the same direction to a plurality of positions is undesirable in practice because of the liability of the key to be thrown beyond. the intended position in 'the rapid manipulation of the machine.

The object of my invention is to produce means for controlling the automatic key connecting mechanism and the automatic decimal spacing mechanism without re uiring material modification of the stan ard equipment of the machine, particularly the automatic key connecting mechanism, and to avoid the use of a key requiring special care for its manipulation.

A further object is to provideseparate keys for controlling the key connecting mechanism and the decimal spacing mcclr anism and to arrange fsuch keys in such to operative relation, that while under certain dependently of .the

'amsm for action whenever t show the app key connectin under other conditions will be interdependent, the last mentioned characteristic insurmg the setting of the decimal s acing meche key connectmg mechanism is set to automatically connect the-keys for addition. 4 i

To the accomplishment of the objects stated, and. others subordinate thereto, as W111 more fullv appear, the preferred em bodunent of the invention resides, in that construction and arran ement of arts to be hereinafter describe illustrate in the accompanying draw ngs and defined in the appended claims. p

In said drawin s:-Figure 1 is a vertical sectional view 0 so much of an Elliott- Fisher .hillin machine as is necessary to ication of myainvention. Fi 2'is a rear elevation of a portion of said machine designed more particularly to show the cooperating parts exposed in rear of the carriage casing and also showing in dotted lines certain elements of the sett ng or controlling means for the decimal spacing mechanism. Fig. 3 is a Iohgitudina'l section through the carriage casing designed more particularly to show the typewriter escapement and the relation of the decimal spacing mechanism thereto. Fi 4 is a horizontal sectional view, throng a portion of the carriage casing, showing the decimal spacing mechanism in plan and in ineifective position, the effective or operative positions of .the'parts being indicated in dotted lines. Fig. 5 is a vertical transverse sect-ion through the rear portion of he carria 'c casing, showing in side elevation the mechanism illustrated in Fig. 4. Fig. (3 is a transverse sectional view through the middle rtion of the carriage casing designed to s more particularly the automatic mechanism, with the parts thereof in ine ective or non-operative posi tion. Fig. 7 is a detail perspective view of those parts of the mechanism with which my invention is most directly concerned, and is designed to show the general relation of the complete organization of the key connecting mechanism, the decimal spacing mechanism, and the means for controlling the operation of said mechanisms. F 8 1s a detail view orf'the decimal space 'ey..

Fig. 9 is a detail view of the decimal space lever, and Fig. 10 is a detail view of the rear end of the decimal space rock Shaft.

Each part is indicated by its proper reference character wherever shown.

The' geneml organization the Ell ott- Ft'sher billing machine-The 4 lliott-Fisher combined typewriter and adder or billing machine includes in its organization a fiat platen typewriter and adding mechanism operated from the typewriter keys, whereby the machine is adapted to simultaneously print and add a column of numbers. The typewriter includes a fiat platen 1 over which travels longitudinally for line spacing a machine frame 2 traveling on which, transversely of the platen, to'efiect letter spacing of the characters printed, is a carriage 3. Carried by and movable with the-carriage is suitable downwardly acting printing mechanismincluding type-bars 4 operated through suitable intermediate connections by letter and immoral keys 5 and 6.

The carriage 3 is propelled to the right by carriage propelling mechanism including spring drums, not shown, connected to the carriage by flexible tapes 7, one of which is indicated in Fig. 2. The .step-by-step movement of the carriage for letter spacing is controlled by carriage feeding mechanism operated from the typewriter keys in a manner well understood in the art and in eluding a carriage feed spindle 8 geared to the frame 2, as indicated at 8", and controlled by an escapement which includes a is in turn connected by a link 15 to an arm of a rock shaft 16 arranged to be rocked by slides 17, which are in. turn operated by key yokes 18 mounted in the carriage of .the t \'pe\\iriter and operated. as any given key reaches the downward limit of its movement, to effect the rocking of the shaft 16 and thus swing the vibrator 14, all as fully (.lescribed and shown inPatent No. 765,361 to John .A. Smith.

It will be noted that the dog 10 normally engages the escapement wheel 9 and thus holds the carriage against movement. 'oon the depression of a key, the dogs are, simultaneously moved in opposite directions, the dog 11 reaching its engaging position before the carriage is released and permitting only sufiicient movement of the wheel 9 to insure the engagement of the do 10 with the next succeeding teeth of the wheel when the dogs are. again reversed by the action of a retracting spring'19 upon the release of the key. Therefore, as the key is depressed,

there is no appreciable movement of thecarriage, but-nponthe release of the key the dog 11 moves out of engagement with the wheel 9 thns'permitting the latter to rotate the distance of one letter space 01 one tooth' of the ratchet 9 before the carriage is arrested by the reigagement of the dog 10 members or number wheels 21 arranged inline and equipped with suitable carrying mechanism whereb the value accumulated upon any wheel will be transferred or carried to the wheel of next higher order. The register constitutes; the relatively fixed unit of the adding mechanism, which latter also embraces a relatively movable unit in the form of actuating mechanism which travels with the typewriter carriage 3 and ispresented by the movementof such carriage to successive number wheels. Thus upon the depression of any numeral key of the typewriter to print a digit in 'agiven denominational position of the adding field or column, the number wheel of corresponding denomination will be' moved a number ofin-' crements' corresponding to the value of the printed digit, thereby accumulating the value of the digit in the register simultaneously with the printingthereof;

The actuating mechanism embraces I a master wheel 22 and suitable differential connections between the master wheel and the several numeral'keys 6, the connections being so proportioned that -each numeralkey will move the master wheel a distance proportionate to the value of said key.

It is thought to be'unnecessary to specifi-- cally describe either the register or its operating connections, but for a more complete disclosure of these mechanisms, attention is directed to Patents Nos. 825,469 and 829,971 to Laganke and Smith. It is only'necessary to direct attention to the fact that jthe nu.- meral keys 6 of the typewriter are separably connected to the actuating mechanism of the adder, the actuating mechanism includ-' ing a series of links 23 having a detachable connection 24 with the stems of the'numcral. keys and arranged to be swung into or out of connection with said keys by a yoke 25 which includes a bar 26 disposed within longitudinal slots 27 inthe links.

' The automatic key connecting .mecham'sm.-Normally the adding mechanism is machine includes, however, what is known as automatic key connecting mechanism which, when "set in eflective or operative condition, automatically effects a connection of the keys 6 with the adding mechanism when the printing point of the machine moves into the adding field, and. maintains such connection as longas the printing point. remains in such field.

The key connecting mechanism here shown is that, described and claimed in my copending application for Letters Patent, Serial No. 366,189. This mechanism includes 'a yoke operating lever 28 suitably fulcrumed on a bracket 29 suspended from the cover'plate 3 of the carriage. The front end of the lever 28 is bifurcated to en gage the bar 26 of the yoke 25, as shown in Fig. 7, and by Swinging this lever in the proper direction, the yoke 25 may be swung to shift the links 23 into or out of engagement with the keys 6,

Longitudinally shiftable at one side of the lever 28 and arranged to rock therewith, in one position, is a settin plate 30 provided with an abutment int c form of a roller 31, which, in the set or efiective position of the mechanism, overlies what is termed an intermediate lever 32 fulcrumed intermediate of its ends, as indicated at 33, and engaged at its rear end with the bifurcated extremity of an arm 34 mounted to swing from a boss 35 extending rearwardly from the rear wall 3 of the carriage casing. Also mounted to swing from the boss 35 is a cam arm 36 provided at its free end with a cam 37 -.arranged to be brought intdeng'agement with a cam plate 38 bythe movement of the carriage in the direction of letter spacing.

As the printing point of the machine reaches the left hand margin oft-lie adding field or column, the cam'37 rides under the cam plate 38, thus depressing the arm 36 and causing the latter, through a suitable connection 39, to depress the free end of the arm 34. This in turn effects the, depression of the rear end of the lever 32 and causes the I frontcnd. of said lever, by en agement with the abutment roller 31, to roc .in .th.

for the purpose of'shifting the links 27 into connection with the keys, the parts being retumed to their normal disconnected positions. by a retracting spring, not shown, when the cam 37 moves beyond the plate 38. It will of course be understood that the cam plate 38 is relatively stationary, the casin of the register 20 usually justable support therefor.

-It is-soiiietimes desirable to avoid the au- 0 tomatic connection of the keys when the v6 printing pointof the machine moves across that area of the work sheet which would otherwise constitute the adding field, as for ,jnstance in writing the total at the foot of the-column or in printing digits above or below acolumn or between two vertically I the lever 28 a proper tlirection to swing the yoke 25' serving as an a tion, as shown in Fig. 7 towit, in position to beengaged by thelever 32, or in the unset, inoperative or ineffective position indicated in Fig. 6, where the roller is shown moved out of cooperative relation with the lever 32 by This plate 30 is shifted to its set or unset positions by a setting lever 40 fulcrumed intermediate of its-ends and provided at its 'righthand end with an angular bifurcated extremity 4]. which engages a pin 42 projecting from the plate 30. The opposite end of the lever 40= is connected to a slide 43 in the form of a plate equipped with a controllingkey 44 and an opening 45'through which latter suitable indications, as for instance add, and: total "are exhibited alternately to indicate the position of the slide and the condition of the mechanism,- These indications are equivalent to setor unset, operative or inoperative, since when the slide is in position To exhibit the word s in its set position, j

add the abutment 31 and the key connecting mechanism 18 therefore in condition to operate automatically to connect the kevs and addin when the adding eld is-reache when the slide is in position to exhibit the word total the abutment 31 will .bein its.

unset, ineffective or non-operative position so that the automatic key connecting mechanism willnot o erate .to connect the keys and adding mec anism, but'wiil allow the keys to remain disconnected while total or other matter is being printed in the area appropriated to the register, way affecting the addin mechanism. r

The" arrangement an movement of th'e controlling key 44 and related parts will be understood by reference to Figs. 4, 5 and 7. The automatic spacing mccham'am.-The Elliott-Fisher machine is largely used 'for the com litation of money values. Ittherefore inc decimal spacing mechanism arran ed, to cause the carriage to skip over the eciuial point from the units to the tenths position upon the release of a key after printing a digit in the units order of the column. One

without in. any

the shifting of the plate 30.

mechanism Similarly,

udes what is known as automatic form of such mechanism s disclosed in Patent No. 820,879 to Laganke and Smith,

but the form here shown involves the Smith escapement disclosed in the patent to'Smi-th,

No. 765,861, before mentioned, and is shown and described in the application of Herbert D. Bolton already referred to. I

Depending from the casing ofthe register I 20 i s a decimal spacing trip 46 in the form of a. trip arm 47 having a pointed tooth 48' which, when the decimal space is reached by the carriage, engages and passes under the 'loiri 46. The trip arm 47-is secured to the outer end of a rockshaft 48, which is rotatable and longitudinally movable in a bearing sleeve 49 projecting through the back wall 3" of the carriage casing, see Figs.

1, 2, 4,5. and 7.

Adjacent .to the inner end of the rock shaft 48 is secured an arm 49 the free 'end of which is disposed over the laterally disposed end or lug'50 of a dog retarding lever 51. The lever 51 is fulcrumed intermediate of its ends to the back wall of the carriage casing and is extended under the pin 52 projecting laterally from the free end of the dog 10.

We have already seen that the letter-space advance of the carriage is effected while the dog 10 is moving back toengage the next I succeeding tooth of the ratchet, and itwill I therefore be'obvious that if this movement .01? the dog to its engaging position is momentarily retarded, the ratchet will be permitted to move the distance of two teeth instead of one before it is engaged and the carriage. arrested by the dog. The partsjust described are designed to efl'ect this momentary retardation of the dog 10 so that as the carriage moves from the units position i't'will advance a doublespace or the distance ame normal letter space moveinents. so'hs' to cause the printing point to pass directly from the units to the tenths ositioli and ski over the decimal space.

lt will be seen t at when the trip arm 47 engages the decimal spacing trip 46, said 5. arm willbe slightly depressed, .thus. rocking the shaft 48 and depressing the varm '499, which in turn depresses the left hand end of a lever 51and causes. the right hand end ofv saidlevento rise and thus, by engagement with-the pin 52 on the'dog 10, to-retard the movement .of the dog 10 toward its engaging positi'ornftheretardation being obviously momentary because of the very brief or momentar engagement of the trip 46 with the pointe tooth 48 of the. triparm.

It is sometimes desirable to render the decnp al spacing. me chanism inoperative, pa-rticdlarlyfm writing ordinary matter across that area which maybe used as the 8 0 adding field, for instance when. the'computin device is entirely out (reuse or when it is esired to write matter across the sheet above or below a column of numbers which are to be or have been added. I-Irgoidcr to render the decimal spacing meatgn emo pointed tooth disposed in the path (if a.

operator may determine w erative or inoperative, the shaft 48 is'made longitudinally movable, assta-ted in order to permit the same to be shifted back to bring the trip arm ,47 into cooperative relation with the trip 46 or forward to present the trip arm out of cotiperative; relation with said trip, the two positions bein indicated in Fig. l, the operative position 0 the mechanism being shown in full lines, and the trip arm being shown in dotted lines. shifted to its inoperative position in which it will pass, idly by the trip 46 instead of engaging the same as'the carriage advances.

In accordance w1t-h my invention, the position of the trip arm is controlled by a decimal space ke 53 distinct from the key 44 which contro s the key connecting. mechanism, attention being directed to the fact that this emplo ment of separate keys for controlling the rey connecting anddecimal spacing -mechanisms is one characteristic which distinguishes my invention from that disclosed in the application of Herbert D.

Bolton before mentioned. 'The key 53 is in the .form of a plate having a shank 54 pivotally mounted ona bearing bracket 55 secured to the cover-plate of the carriage. The-lower end of the shank 54 is provided with a tongue 56 which engages the angular forked extremity 57 of a decimal space settihglever 58 fulcru'med intermediate of-its endsfas'indicated at 59, to a bracket 60 securedto'the wall 5 of the carriage. The opposite end of the lever '58 is turned to vertical position and provided with a fork 61 engaging a reduced portion 62 of the rock shaft 48. It will thus be seen that by tilting thedecimal space key 53 in one direction the lever 58 will be swung to shift the shaft 48 longitudinally and thus present the trip arm-47 in operative position Similarly, by tilting the key 53 .in the opposite directien; the arm- 48 will'be withdrawn to, its ineffective or inoperative position; Therefore, by manipulatingthe key 53, the

decimal spacing mechanism will operate when the tooth 48 of the arm 47 reaches, the automatic exaggerated spacing trip 46;

The means for securing limited interdeplendence of the two controlling keg 8.?

nder certain conditions of use, as for instance when there is no necessity for addition, and the keys are disconnected from the adding-mechanism, it is desirable to other or not the eliminate decimal spacing. during the writing of ordinary matter across the sheet, or to set said mechanism for automatic decimal spacing, to facilitate the printing of-money 'values in tabulated form. Obviously, either of these conditionsmay be established by the mani uzlation of the key 53 independently of the key 44. It is also desirable to utilize the decimal spacing mech anism with the .keys connected with the add-.

ing mechanism, and also with the keys disconnected therefrom. Assuming the decimal spacin mechanism tube in operative condition, t ierefore, the controlling key 44 of the key connectin mechanism may manipulated indepen entl of the key 53 to connect the keys and a ding mechanism for addition or to allow the keys to remain disconnected as for instance for the printing of the total at the foot of the column with the adding mechanism out of action and with the decimal spacing mechanism in action.

\Ve now come to the pro sition which makes it desirable to have limited interdependence of the two controlling keys 44 and 53, which, as we have seen, are independently/ operative to eiiect the independent control of the key connecting and decimal spacing mechanism. It will'be obv'ous that whenever the keys areconnected ith the adding mechanism for addition, it is desir-- able thatthe decimal spacing mechanism shall be operative. If the two controlling keys were entirely independent, it would be necessary for the operator to manipulate both keys to properly set the machine for addition, assuming both the'key connecting and decimal spacing mechanisms to be in ineffective position. In any event, it would tax the attention of the operator to me that the key 53 was in its set or operative position whenever. the key 44 was manipulated for addition. In order to make this unnecessary and to insure the setting of the decimal spacing mechanism automatically, when ever the key connecting mechanism is set, provided, the decimal spacing mechanism happens'at such time to be unset I extend the forward end of the key 53 to form a cam or tail-piece 63 andextend the rear end of the slide 43 to form an upturned end or' cam 64 which cooperateswith the cam 63.

In the unset or total position of the controlling key 44 the cam 64 occupies a position. sufficiently in rear of the cam 63 to permit the independent manipulation of-the key 53, that is to say, assuming the key connectingmechanism to be unset, the deci mal space key 53 may be independently manipulated to set or unset the decimal spacing mechanism; When, however, the key 53 is in the unset position shown in full lines in Fig. 5, the cam or tail-piece will occupy a'position below and in advance of the upper end of the cam 64. Therefore, if the key 44 which controls the key connecting mechanism is moved to ts set position to set the key connecting mac ism, the cam 64 will engage and eicvate e cam 63 and thus shift the key 53 to its posi tion.' By this arrangement the manipulation of the key 44 alone will effect the settin of both the key connecting mechanism an the. decimal spacing mechanism in case both of said mechanisms happen to be unset.

as long as the key 44 remains in its set posltion, the cam 64 will remain in engagement with the cam 63 andi will thus lock the key 53 and the decimal spacing mechanism in set position, see dotted line position in Fig. 5. The key 44, however, nmv be moved back to unset or render ineffective the key connecting mechanism without disturbing the key 53, which may therefore remain set so that the decimal spacing mechanism will still operate, notwithstand ing the disconnection of the keys;as for instance in printing the total at the foot of a column.

Before concluding, attention may bev directed to the fact that the-Elliott-Fisher billing machine sometimes includes totalizers or registers which not only have a decimal spacing trip 46, but also one or more additional trips, operating in precisely the manner of the decimal spacing trip, but so lo cated that the automatic spacing of the carriage will occur at the comma spaces, for instance between hundreds and thousands, hundred-thousands and millions, etc. lVhen such a register is utilized in lieu of the register herein shown, the operation of the mechanism will be precisely that which has been herein described,

except that when the decimal spacing mech anis'm is set for subsequent automatic operation, 1t Wlll operate to automaticaly space over the comma spaces as well as thedecimal space.-

It is thought that from the foregoing, the construction and operation. of the described mechanism will be fully compre hended, but I wish to reserve the right' to efi'ect such changes, modifications and variations of the illustrated structure as may come fairly within the scope of the protection prayed.

What I claim is 1. In a combined typewriting and adding lilO machine, the combination with a typewriter including a carriage, keys, and printin mechanism, of adding mechanism adapte to be 0 erated from the typewriter keys but normally disconnected therefrom, automatic key connecting mechanism, automatic decimal spacing mechanism operative to cause skipping over the decimal point or'space,

arid separate controlling devices for-said last named mechanisms. I

2. Ina combined typewriting and adding machine, thecombination with a typewriter including a carriage, keys, and printing mechanism, of adding mechanism adapted to be operated from the typewriter keys but,

normally disconnected therefrom, automatic key connecting mechanism, automatic decimal spacing mechanism, and a se aratecontrolling key for each of said ast namedmechanisms.

3. In a combined typewriting and adding machine, the combinatiofwith a typewriter including a carriage, keys, and printing mechanism, of addlng mechanism adapted to be operated from the typewriter keys but normally disconnected therefrom, automatic key connect-ing mechanism, automatic decimal spacing mechanism, a separate controlling device for each of said mechanisms, and means for causing one of said devices to operate the other.

4. In a combined typewriting and adding machine, the combination with a typewriter including a carriage, keys, and printing mechanism, of addlng mechanism adapted to be operated from the typewriter keys but normally disconnected therefrom, automatic key connecting mechanism, automatic decimal spacing mechanism, a separate controlling device for each of said mechanisms, and a positive lock for one'device.

5. In a combined typewriting and adding machine, the combination with a typewriter including a carriage, keys, and printing mechanism of adding mechanism adapted to be operated from the typewriter keys but normally disconnected therefrom, automatic key connecting mechanism, automatic decimal spacing mechanism, and a separate controlling device for each of said mechanisms, one of said devices being movable to lock the other. I

6., -In a combined typewriting and adding machine, the combination witha typewriter including a carriage, keys, and printing mechanism, of adding mechanism adapted to be operatedfrom the typewriter keys but normallydisconnected therefrom, automatic key connecting mechanism, automatic decimal spacing mechanism, and a separate controlling device for each of said mechanisms, one of saiddevices being movable to operate and lock the other. a

7. In a' combined typewriting and adding machine, thecombination with a typewriter including a carriage,'-.keys, and printing mechanism, of adding mechanism adapted to be operated *from the typewriter keys but normally disconnected therefrom, automatic key c'onnectingrmechanism, automatic deci-, mal spacing mechanism, and controlling mechanism including.v separate 'controllin keys for the key connectinganddicima spacing mechanisms,"one.. of said keys being Izgrranged to operate the other and each key 'ein POSit IOIL of the other. 8. .In a combined typewriting and adding machine,-the combination with a typewriter including a carriage, keys, and printing mechanism, of adding mechanism adapted to be operated from the typewriter keys but.

'- normally disconnected therefrom, automatic key connecting mechanism, automatic decimal spacmg mechanism, each of said mechindependently operative in'a given.

anisms being arranged to be set in operative a device for setting one of said mechanisms independently of the other, and a second device operative to set both of said mechan1sms, v

9. In a combined typewriting and adding machine, the combination with a typewriter mechanism, of adding mechanism adapted. to be operated from the typewriter keys but normally disconnected therefrom, automatic key connecting mechanism, automatic decimal spacing mechanism, brought into action by the movementof the typewriter carriage, each of said last named mechanisms being arranged to be set in operative position or unset to prevent its operation, and separate controlling or setting keys for the key con- "necting, and decimal spacing mechanisms. 10. In a combined typewriting and adding machine, the combination with a typewriter including a carriage, keys, and printing mechanism, of adding mechanism adapted to be operated from the typewriter keys but normally disconnected therefrom, automatic keyconnecting mechanism, antomatic decimal spacing mechanism, brought into action by the movement of the type writer carriage, each of said last named mechanisms being arranged to be set in operative position or'unset to prevent its operation, separate controlling or setting keys for the key connecting and decimal spacing mechanisms, and means operated by one of said ke s when moved to its set position, to move t e other key to set position. v "11. In a combined typewriting' and adding machine, the combination with a typewriter including a carriage, keys, and print ing mechanism, of adding mechanism adapted to be operated from the typewriter keys but normally disconnected therefrom, automatic key connecting mechanism, automatic decimal spacing mechanism, brought -writer carriage, each of saidlast'named mechanisms being arrangedto be set in op- Ierative position or unset to prevent its operation, separate controlling 'orsetting keys for the key connecting and decimal spacing mechanisms, and coacting cams movable with the res ective keys to renderithe same interdepen ent under certain conditions.

12. In a combined typewriting and addin machine, the combination with a typewriter including a carriage. keys, and print-a in mechanism, of adding mechanism -automatic key connecting .mechanism, automatic decimal-spacing mechanism, brought 'into action by the movement of the type-. writer carriage, ,each of said last name-l mechanisms being arrapged to be set in op:-

position or unset to prevent its operation,

including a carriage, keys, and printing into action by the movement of the typeadapted to be operated from the typewriter keys but normally disconnected therefrom, a

1o ing mechanism,

, first named key.

erative position or unset to prevent its operation, and separate controlling or setting keys for the key connecting and decimal s mechanic s, one of said keys being tiltablennd arranged to be tilted in one 'di "rection only by the other key.

13. In a combined typewriting and adding machine, the combination with a typewriter including a carriage, keys, and printof adding mechanism adapted to be operated from the typewriter keys but normally disconnected therefrom,

automatic key connecting mechanism, auto-' automatic key connecting mechanism, automatic decimal spacing mechanism, both of said mechanisms being operated by the movement of the typewriter carriage, and. means for controlling the operation of said. mechanisms, said controllmg means including a separate cont-rolling key for each mechanism, one of the controlling keys being operative in either osition of the other and said other cont-rofiing key being independently operative in one position only of the 15. In a writing-adding machine, the com- ,bination with a register andactuating mechanism therefor including keys normally disconnected from the actuating mechanism, a traveling carriage, movable to determine the denominational relation of the register and its actuating mechanism, key connecting mechanism capable of being set to cause the'movement of the carriage to effect a cooperative relation between the keys and register, carriage feeding mechanism operative to effect normal spacing movement of the carriage, spacing mechanism capable of being set to cause exaggerated movement of the carriage, and separate controlling keys for the key connecting and exaggerated spacing mechanisms.

16. In a writing-adding machine, the combination with a register and actuating mech v anism therefor including keys normally disconnected from the actuating mechanism, a traveling carriage, movable to determine the denominational relation of the register and its actuating. mechanism, key connecting mechanism capable of being set to cause the movement of the carriage to effect a cooperative relation between the keys and register, carriage feeding mechanism operative to effect normal spacing movement of the carriage, spacing mechanismeapable of being set to cause exaggerated movement of the carriage, and separate controllin keys for the key connecting and exaggerate spacing mechanisms, said either independently or one by another.

keys belng operative In testimony, that I claim the foregoing as my own, I have hereto aflixed my s1gnature in the presence of two Witnesses.

JOHN A. SMITH. Witnesses:

EDWARD Ecnn'r, EDWARD M. VVIN'rnns.

nee of this patent may be obtained for five cents each, by addressing the "Commissioner of Patents,

Washington, 12. 0.

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