US839492A - Type-writing machine. - Google Patents

Description

'PATENTBD DBC. 25, 1.905.

A. T. MAUGY. TYPE WRITING MACHINE.

.-'PPLIOATIOH FILED DEO. 30.1904. Y

` 8 SHEETS-SHEET 1.

"Mum

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m5165565, Q 65.10. A./zza/...f

PATENTED DEG. 25, 1906.

No. 839,492. y

A. 'AOGOY.` TYPE WRITMG MAGENE.

8 SHEETS-SHEET 2.

??LGATIQ5 FILED DBO. 30.1904.

NO. 839,492. PATBNTED DEG. 25, 1906.

A. T. MAQGOY. TYPE WRITING MACHINE.

APPLOATION FILED DBO. 30.1904.

8 MEETS-SHEET 3.

PATENTED DEC. 25, 1906.

T, MAGCOY. TYPE WRITING momma. y

PPLIOATION FILED DBO.. 30,1904.

8 SHEETS-SHEET 4..

I vu

x )mi 110 10,9

Y 27% 74 uw ITO/839,492. PATBIITIIII DEC. 25, 1906. A. T. MIGGOT.

TYPE WRITING MACHINE.

APPLICATION FILED DBG. 30.1904.V

8 SHEETS-SHEET 5.

No. 839,492. PATENTED DEG. 25. 1905 A. T. MAGCOY. TYPE WRITING MAGHNE.

APPLICATION FILED 10130.30. 1904 8 SHEETS-SHEET 0.

10.839,492. PATBNTED DEG. 25, 1906, A. T. Mmmm,

TYPE WRITING MACHINE,

APPLIOATXON FILED DEG. 30,1904.

B SHEETS-SHEET 7' A. T. MAGGOY.

I TYPE WRITING MACHINE.

APPLICATION FILED DBO.30.1904.

PATENTBD DBG. 25, 1f;

ANBREW T. MACCQY, F DOVER, MASSACHUSE'ES, ASSIGNOR T0 ,CHARLFSB STRECKER, OF BROOKLiNE, MASSACHUSE T Tree-afirman arnet-ane.

NofSSQAQf-Z.

Specication of Letters Patent.

Eatented Dec. 25, i996.

i Application filed December 3G, 190e.' Serial Eo. 238.987.

To all wir/om it may con/cern: la Be it known that ANDREW T. MACCQY,

of Dover, in the county of Norfolk and State of Massachusetts, have invented certain new and useful 'Improvements in Type-Writing Machines, of which the follow-ing is a `specification.

This invention has relation to type-writing machines, and more particularly to those machines which are electricallyv operated, such as "page-printing stock-tickers, so called, althou h many -features ofthe invention are 'ca a l'e of embodiment in typewriting mac `nes of other types.

The embodiment of the invention illustrated onthe drawings consists ofva typewheel which is rotated/and selectively positioned by a Ahey-controlled electric motor. The type-wheel and the motor are mounted to oscillate about a vertical axis to feed the type-wheel across the concavev face of a platen, and an electromagnetic mechanism is employed for impartingthe feeding movement thereto. A' spring is employed for returning them but it is not rendered active, except when they reach a predetermined vpoint in their feed and whenone of the shifteys is manipulated. The same electromagnet is used for imparting an impression stroke to the type-wheel radially of the axis of oscillation of the motor. and 4the typewheel as is employed for the feeding opera.- tion. Automatic paper-feeding mechanism is employed, 'and it is actuated by the said electromagnet when the feeding mechanism has fed the type-wheel to the end of a line. The electric motor and the said electric magnet derive their current from the same source which supplies, first, an alternating current, which energizes the motor to rotate the type-wheel, but does not affect the electromagnet, and then a direct current to hold the Atype-wheel against further rotation and to energize the magnet and cause it to perform its functions..

0n the type-wheel there is a line of c aracters and blank spaces, the alternate characters and spaces having a potential printing relation to the laten. By mechanism controlled by a shi t-key the type-wheel is rotatively shifted one space to either of two positions relatively to the motor-shaft to which it is geared to bringthe former nonotential characters and spaces into )otenpurpose.

` tial printing relation to the platen and to remove the first-mentioned characters and spaces to a non-potentialI relation, so that each character-key on the keyboard may he used for causing the printing of either of two characters by the type-wheel. An electromagnetic mechanism connected in multiple with the electromagnet hereinbefo're referred to is automatically cut into circuit when one -of the shift-keys is manipulated to pre ent the feeding of the type-wheel on the shifting of the `type-wheell forr otherwise the feeding -.would occur, since the shifting is efectedv when the type-wheel has been positioned and has had the impression-stroke imparted to it by the said electromagnet.

Either of the shift-keys operates to render the carriage-returning means active by partially closing a branch circuit to an electromagnet, which lifts a feeding and a retaining pawl 'from a ratchet on the type-'wheel carriage, the complete closing of said branch circuit being effected by a switch, which is automatically operated when the type-wheel has reached the end of a line.

On the accompanying drawings, Figure i represents in side elevation a machine embodying the invention. In this figure the platen for the paper and the paper are illustrated in vertical section. Fig. 2 represents a plan View of the same. Fig. 3 represents a front elevation. Fig. 4 represents a rear elevation, partially in section, on the line 4 4- of Fig. l. Fig. 5 represents a machine in side elevation with thecarriage swung to the extreme of its movement to the right across the sheet. In this view the paperfinding and the printing devices are not show:` Fig. 6 illustrates a portion -of the machine in detail and shows the frame in which the carriage is journalcd. This ligure shows in detail the mechanism for effecting the feeding of the paper. Fig. 7 represents, partially in section, the type-wheel and the means for effecting a movement of said type-wheel relatively toits supporting means. line S S of Fig. 7. for shifting the type-wheel to its other position occupy the preparatory'position for the Fig. 9 illustrates the same parts after being shifted. Fig. l0 illustrates the same parts in position preparatory to being shifted back to the former position. Fig.-1l shows the shifting means after being shifted Fig. 8 is a section on the In this ligure the meansv IOO IOS

the current which passes throng wlgnch are 1n series connection therewith, but

alternation.

back to the former position. Fig. 12 re resents the motor for the type-wheel detac ed. Fig. 13 represents 'an end elevation of the motor. In this figure the armature occupies the position determined by a current of a given polarity. Fig. 14 represents a section on the line 14 14 of Fig. 13. Fig. 15 represents a section on the line 15 15 of Fig. 12. Fig. 16 re resents an end View of the motor which, ta en in conjunction with Fig. 13, illustrates the armature in the position determined by a current of opposite polarity. Fig 17 is a diagrammatic view illustrating 'the electrical circuits and the electromagnetic mechanisms for effecting the operation of the various parts of the machine. Fig. 18 is a diagram representing a pole-changing device or transmitter,4 a keyboard, a sunflower, and anelectromagnetic clutch dr stop-motion for determining the )clarity of the machine and which causes the operation of the electromagnetic mechanisms of the machine. .q

.I desire to have it understood at the outset that Athe machine shown in the drawings thus .briefly describedis one embodiment ofthe many of which the invention is capable, that the invention is not limited to the details of construction of the machine or to any 'part'icular formof transmitting or controlling devices, and that the phraseolo ously rotated with a step-by-stcp movementv by a novel motor which I have devised, the Vmotor being energized by an alternating current/,in which the changes of polarity are too re uent to cause the mechanical operation ft 'e various mechanisms by electromagnets are sufficiently infrequent to effect one'ste in the rotation of the type-wheel for eac The current is supplied to the motor through a transmitter or pole-changer, which is automatically sto ped upon the depression of a key to cause t e transmission of a direct current to the motor, whereupon the motor and the type-wheel are stopped in their rotation with a ty e or space presented to the paper correspon ing to said key, and the' electromagnetic mechanisms are operated to f eed or return the carriage, impel the typewheel 'toward the paper, or feed the-paper, as the case vmay be. The type-wheel is so geared to the motor and the motor is so constructed that the rotation of the type-wheel is'substantiall synchronous with the rotation of the 4po e-change'r or transmitter and of'th moving contact of the sunflower. The

which l employ in the specificaticnand c aims is for the. pu'iplose of description nd not of limitation.

keys on the keyboard are respectively elec- "trically connected with the stationary con-- at a main or central station where the transmitter is placed; 'lhe key b is the spacingke and the keys b b2 are what are termed s ift-keys. lhe remainder of the keys are character-keys. In the sendingmechanism I propose to reduce the number of the character-keys, so vthat one key may be used for each of two' difierentcharacters--as, for instance, one key may be used for the letter a and numeral 1, another for b and 2, and a third for c and 3, cc.V Each of these keys b b b2 b3, &c., is connected by a4 separate branch circuit Ac c with the stationary contacts d of the sunflower D. The rota arm d of the sunflower is on a yielding y-driven shaft E, said shaft having thereon a stop-wheel .F and the pole-changer or transmitter G. e indicates a circuitJ having a source of electrical energy included therein, said circuit including the arm d and serving as the return-Wire for the branch circuits c c. In the circuit e is placed an electromagnet e2, the armature 'e3 0f which is mounted upon a movable stop member e4, arranged in operative relation to lthe stop-wheel f and normally held away therefrom by a s ring e5.

' The stop-wheel F is provided with a p urality of teethf equal in number to the keys of the keyboard, which, as previously stated, are alsol equal-in number to the contacts-'fl on the sunflower. The pole-changer or transmitter G has up'on its periphery a d'plurality of contacts g', arranged in lstaggere relation with their ends overlapping or pro'ecting past each other. The shaft Eis 'eldingly driven by any suitable means. ot illustrated.) Bearing upon the periphe ofthe pole-changer are two brushes g2 g3, vif'liich are connected in two different circuits g4 g5 ofopposite polarity. The two circuits g4. g5' have separate sources'of electrical energy, (indicated at g 98.)' The brushesg2 gf areengaged alternately by thecntacts g iq; as the pole changer rotates, Arranged etween said brushes is a third brush g?, which is siicce'ssively engaged by all of the contacts g', this brush g7 being connected with the main working circuit, which is indicatedat H,'the conductor of which is connected to a binding-post 1111 on the baseof the machine, but

lOO

insulated therefrom. The machine has another binding-post 112, from which the circuit H is grounded, there being a ground connection between the sources of electrical 5 energy g'gs, as illustrated 'in Fig. 18. The type-Wheel, Which is indicated as a Whole at 27, has u on its'periphery subdivisions Which are doub e in number lto the keys on the keyr board. f these divisions six are blank, as io shown in Fig. 18, the remainder bearing the usual types which are used in type-Writers or printing-telegraph machines. The six blank s aces are indicatefhpt i if i2 t3 t4 i5. When t e spacin -key .b is 1depressed, a cirr cuit is closed to t e corresponding contact en the sunflower, and When the rotating arm d thereof reaches that contact theelectromagnet e2 is energized to cause the stop e4 to engage the corresponding tooth of the stop.

zo Whee'lif and effect a cessation of Arotation of the type-Wheel, as will be explained, with either of the blank spaces t o 'i' o posite the paper.; The manipulation o the' rey b will eifect the sto ingof lthe type-Wheel with z5 leither of the filiank spaces i2 't3 op osite the paper, and the manipulation of t e key `b2 Wil stopthe type-Wheel with either of the blank spaces 'i4 i5 opposite the paper;

I have described suitable devices for con- 3o trolling the operation ofthe machine; but it y "will be understood that others may be sub- AEtitlIted, if desired. I-shall nowproeeed to describe the machine.l

Framework--ln ,f generaly the machine is g5 provided with a Wooden base 19 and a metailie base-plate 20, from Which arise the brackets for supporting the various operative dparts or mechanisms of the machlne and which will be referred to in connection with so the parts which they support.

21 indicates the main bracket or standard, which extends'upward from the base-plate and in which the carriage and the motor which drives the type-Wheel are journaled i5 u on a vertical axis. This bracket is lateral y extended near its base to furnish supports and bearings for some of the parts of the machine.

51o constitutes a part of theearriage or. which the type-wheelis rotatively mounted and pivoted, so that it can be impelled to the papen'the paper being arranged vertically and supported by a platen, as will be de- 5 5 scribed.

Referring to Fig. 6, it will be cbr' 'l that the bracket` 21 is provided with two oppositely-projecting studs or pins-22 23, which are arranged in vertical alinement and which `6c operate to rotatively support the carriage,

the type-Wheel, and its motor.

The motor, which will be described subsequently in detail, is indicated, as a whole, at 24 in Fig. 1 and is provided with sockets for 6 5I the reception of the pins or studs 22 23. To

the rear end of the motor is attached a forked bracket 25, (see Figs. 1 and 4,) in the lower end of the arms of which is passed a pin 26 for supporting the type-Wheel and its carrier. The motor and the bracket 25 constitute a carriage for the type-Wheel and its carrier,

by-step movement about the studs 22 23 from left to right to permit the printing of a line of characters across the sheet of paV er and to be returnedfrom right to left with a single continuous movement', the mechanism by which it is accomplished being hereinafterl described in detai The type-wheel 27 is loosely placed upon an upright shaft 28, the up er end of which is journaled in a yoke 29 an 'its lower end in a stepO, pivoted on and supported by the pin 26. The bifurcated arms constituting the yoke 29 are piv- `oted at their lower ends on the said pin 26, so that the ltype-Wheel may be moved bodily about the axis of the pin 26 in addition to its movement about the vertical axis of the motute the carrier for the type-wheel, and they .are held away from the paper or sheet to be printed by a spring 31, attached to the yoke and to the bracket 21. 0n the shaft 28 is placed a bevel-gear 32, which intermeshes with and is driven by a bevel-gear 33 on the shaft 34 of the motor 24. The rotation of this shaft 34 effects the rotation of the shaft 28 and of the type-Wheel 27.

The metan-The motor itself is illustrated in detail in Figs. 12 to 16. lt comprises a plurality of permanent magnets 35, arranged radially equidistant about the shaft 34. Each of these magnets is in the form of a bar or strip which is arranged longitudinally with relation to the shaft 34. They are alternately disposed as regards their poles, so that at each end of the motor the north pole or positive end of one magnet is between the 4south or negative poles of the two adjacent magnets. Within the permanent magnets is arranged a coil 36, wound upon a bobbin 37 and covered with a layer of insulation 38. This coil is connected in series with the polechanger or transmitter, so that an alternating current is supplied thereto, there being about four thousand altermitions or changes of polarity per minute. Secured to the shaft 34 is an armature, (in dicated as a Whole at 39.) This armature consists of a cylinder having its ends expanded so as to rotate in close proximity to the poles of the pern'ianent magnets 3. .Ea-eh of the expanded ends 40 of lingers 41. ln the form shown there are four permanent magnetic poles at each end of the motor, and there are six lingers on each. end of the arn'iature. The armature itself is formed of soft iron, so that itmay be magnetized by the coil 36, and it is supported i upon the shaft 84 by bushings 42.

and they are adapted to be fed With a steptor. Tle shaft 28 and the yoke 29 consti- IOO is slotted or out away to provide a plurality f 5 The motor-shaftis at one .end journaled yen a easin or .cap 18() at the .end of the motor .and in racket. 181 at the other end. .(See .-Fig. l.)

5 Uponlthemotor-,shaft 34 is 4secured a vratchet-wheel 43, with .which a lazypawl 44 .is in engagement for the purpose of preventing a reverserotation ofthe armature. A

The operationof the motor is` as follows: xo The passage ,of a current .of positive polarity through the coil 36 magnetizesthe armature .39, sothat one .end thereofzbecomes of posi- .tive magnetic polarity and the other of negativepolarity. At the positive .end ofthe ariq mature thengers 41 are attractedby .the negative lpoles of the permanent magnets and are repelledv by the positive poles of said magnets. Inasmuch as :there are sixl fingers and -four.po1es, .the ngers will be drawn by the 2o magnetic polesof opposite polarity sufficientlyto effect. a partial rotation of the armature. Upon a change of polarit in the current through the coil 36 .the arity of the armature 39 will be immediate y changed,

`-.so lthat the ingers which were previously positive will become negative and will be attracted b the Qsitive ermanent magnetic `.polesan vwill c repe ed by the negative poles. 'Thepermanent magnets being altero .na'tely oppositely arrangedwith relation to theirqpolarit the attractive force' upon the larmature will be equal at both endsthereof, and for each change of polarity in the operating-currentthrough the coil 36 the armature 39 andthe shaft 34 will. be advanced one step.

` Ihave stated .that .there are tour perma.

. nent magnetic poles at each .end ofthe motor and six n .It -willbe understood, however, that I may .14o employ. any suitablenumberof lingers and .permanent magnetic poles. In order to assistinthe advance .movement .or step bystep rotation -of the armature, it will .be seen' 4that the ends :ofthe permanent magnets are beveled, so that the end surfaces are-successively to one side of radii passing from the axis ofthe shaft 34 through the central longitudinalplanes of the .permanent magnets. Byreason ofthe number of fingers and per- -.5o manent magnets twelve alternations-of the .current .or changes of' polarity thereof will effect` a complete rotation of the motor, and

hence the motor must be geared to the typewheel accordingly. Ithappens in the pres- 5 5. ent case thatthere are twenty contacts on the pole-changer, and hence the motor is'gearedI 'A It will `be seen that secured to the mot or. is

asegmental ratchet 50, which is adaptedto .beengaged .and fed forward step by step 65 vby an electromagnetic-ratchct mechanism,

gers. on .each end of the armature..

.aline on the paper. Thismechamsm comprises an electromagnet, which is indicated .at 51, yconnectedin series-with the motor. The armature 52-of the magnetissecured to a yrock-shaft 53, which is j ournaled, in .bearings affordedl by .lateral extensions of thel bracket 21. vSecured tothe rock-shaft 53.is an. arm 54, in the endy .of which` is pivoted a pawl 55, which is-adapted to engage the ratchet 50 and feed it one step ata time. This pawlv is held in engagement with the ratchet by a .helicalspring 56,.as,b.est;showf1 in Fig. 1. 'A spring 57 is attached to an 4arm on the roekshaft 53 forithe purpose of lrldingthe armatured52 normally awayfroip the core offthe .electromagnetic coils 51, .said spring being depended upon -for actually effecting,the4 forste acrosstle paper it .is returned toits. initia startingpoint by a continuous movement throughthe agencyof a spring 58, which. is ,coiled 'about 4the pin 22 previously referred to, one. end'of said spring being secured to a pingonthe bracket 21 (see Fig. 1) and-the other end to the motor. (See Figs. Land 2.) Itmay beLhere stated lthat to prevent a reverse movement of the carriage during its stcp-by-step movement a retaining-pawl `60 extends somewhat beyond the end of Athe pawl 55, so as to engage a tooth in advance thereof,- as best shown in Fig. 2.

Carriage-returning mechanism-The pawl tendsunder the pawl 55 and. which is u tilized for raising .the pawl 55 toan inoperative position for permitting the return of the car- .riageito its initial starting-point. The pawl ispivoted u` on a support 63, which forms a part of one oi) thelateral extensionsv of the brackets 21. (See Figs. 3, 4, and 5.) This pawl is normally heldin engagement with the segmental ratchet by a-,spring 64, attached to the pawl andto the. armature v of an electromagnet 66, connected .in series ,with the motor and in multiple with the magnet 51. The pawl andthe armature are provided with .oppositely-project ing fingers. (Indicated at 67 68,1espectively.) These fingers overlap and. are..engaged, so vthat when ythe armature 65 isattracted tothe cores ofthe electromagnet 66 the pawl`60 is moved ,out of .engagement witli'the segmental ratchet, carryingjvxf'ith it lthe feeding-pawl 55. To limit Athe movement of the armature away -from ,the electromagnet, a stop-pin 69 is passed into the support 63 in the path, of movement of the said arm 68.

tail the/circuit relations vof the .Various mechanisms `of the machine; but itis necessary at each ,strappi-,tooth representing one space inv ward movement of the type-wheel carrie e,

60. is provided with a projection 61 which ex- I propose subsequently to explain in dethis timein order..to-set.forth the;operation loo Y seance described in connection with the mechanism forfeedingthe paper. i Y

TypefwheeZLcctuctmg mecamsm-1 have now explained the mechanism for feeding the typefwheel' carriage forward step by step .against the paper.

and the mechanism for returning the carriage to its initial or starting position, and i shall new explain the mechanism for striking the type-wheel against the paper for effecting the printing of a character upon the paper, and this includes the following devices: Pivoted upon the pin 26, which, as has been stated,-

is supported in the forked bracket 25, is an arm 70, which is connected by a brace 71 with the yoke29, so that when the arm 70 is raised the type-wheel carrier is oscillated about its axis and the type-wheel is thrown forward to engage the paper, whichis held in pro er relation thereto, as i shall hereinafter exp ain. The armature 52, which, as'previously stated, is'secured to the shaft 53, is on an arm 72, which projects under the end of the arm 70, as shown in Figsjl and 17, so

that each timethe armature 52 is attracted by the electromagnetic coils 51 the typee wheel carrier is oscillated about its axis to effect the impingement ofi the type-wheel nasm ch as the attraction of thearniature 52 y the magnet simply withdrawszthe feeding-pawl into the i position where it ma be carried forward by or ngers (indicated at 81 81 82.1

the spring 57 it will e seen that the assage of a continuous current of electricity t ough the magnet 51 effects the'printing of a character upon the paper, winch is followed by the feeding .of the carriage whenl the current ceases.

, The platen- The aper A is-shown as be? ing drawn upwardly 'rom a suitabie roll, (not shown,) arranged below the machine, and it is held and supported against a concavo-conveX platen, as indicated at 80. in plan view this yplaten forms the arc of a circle of which the axis of the type-wheel carriage is the center. It consists of an upright metallic shell against which the paper is held by a lurality hese iingers are resilient, the fingers 81 being supported by a strip 83, attached at its ends to the side edges of the platen, which edges are bent inwardly tc form guides lfor the 'side edges of the paper strip. The finger 82 is supported by a bracket 84, which serves anot ier function to be described.

Zaper-jieeding Imechanism. The paperI is fed upward with a step-by-step r vement by two coacting disks, wheels, or rolls 85 86, of which the latter is positively driven. The

roll 85 may be shod with hard rubber', itnd it is loosely journaled in a forked. arm 87, jour-A naled in a bracket 88. To the shaft 89, to which the fork 87 is secured, is formed or attached an'arm 90, by which the roll 85 may A spring be moved away from the paver. 91 exertsmits tension upon t e shaft 89 to hold the roll 85 yieldingly against its coacting roll 86 or the paper, which is interposed between them. It will be observed by an inspection of Fig. 1 that the platen is apertured to receive the roll 85. -The roll 86 is preferably corrugated or toothed to positively engage the paper and feed it upward by the laten and the type-wheel. This roll is oosely journaled on a stud-shaft 93, which is j ournaled in standards 921 95, rising from the base 20. Movable with the roll cr wheel 86 is a ratchet-wheel 96, these two wheels being Secured together by a hub 97, on which they are rigidly mounted. These wheels may be secured :friction tight on the hub, as shown, or they may be otherwise secured as convenlence suggests.

On the shaft 93 is a paWl-carrier 98 with a pawl 99 in position to engage the teeth of the ratchet 96. The paw -carrier is secured upon the end of asleeve or hub 100, to the other end of which is secured an arm 101, which extends substantially horizontally forward and which carries upon its end a stud 102. A spring 103 encircles the shaft 93, one end be ing attached to the standard or upright 95 yand the other to the arm 101 to move the pawl reversely around the ratchet when permitted. The ratchet is held against reverse rotation by a spring-retaininfr paw1104, as shown in Figs. 1, 5, and 6. The stud or projection 102 is normally en aged by a' projection 105 on a pivoted latc i 106, the end of which extends upwardly into the path of a tripping-stop 107 on the ratchet-segment 50,

so t at when the carriage has been fed across the aper the stop will engage the end of the latcfi 106 and move it to the position shown in Fig. 5, so as to release the stud 102 and permit the spring 103 to swing the pawl-carl 4rier to the position shown in Fig. 6, preparatory to feeding the paper upward one step. This actionv of the spring, however, does not take place immediately upon the release of the stud, but is dependent upon the operation of the carriage-feedin Ina net.

Rigidly secured upon t e s aft 53 is an arm or lever 108, which projects toward the platen and lies above the stud 102, extendin pastthe latch 106. When the type-Whse carriage has'nearly reached the limit of its movement across the paper, an electrical impulse, sent through the electroma'net 51 by the manipulation of a space or other key by means to be described, causes the attraction of the armature 52 and the lifting of the arm inasmuch as at this time the B 'seancev tnppedt, the spring' 103 will reversely actualte the1w awl=carier 98 and move it' to the po*- s'tion s own in Fig. 6. As soon as the curgeht fails in the l'eeti'orna et 51 the spring 57 previously referred to, will return the rockm` the y'pe-wheel carriage has-accom lished a ortion of its return. movement. t may be stated that the arm 108 oscillates once'foreach feeding step imparted to the type-wheel carriage; but thls can have no effect upon the r 5 paper-feeding mechanism, exce t when the latch 106 has been trip ed by t e stud 107.

.` To move the latch to an hold it in its lockin position, the lower end of the latch is secure upon a shaft 109", about which is coiled' a z'o spring 110, the ends of which are attached,

res ectively, to the shaft and to the base 20, as est illustrated in Fig. 4.

As thus far described it will be seen that when the carriage has reached the limit of its z 5 movement across the paper the carriage will be automatically returned upon the depression of a key in the sending apparatus and the paper will be advanced one step.

Mechanism 1s rovided by means of which' 3o the aper may e fed Aone or more steps prior to t e return of the carriage to its initial'or starting point; but 'inasmuch as this depends upon another feature of the machine I 'willrst explain the operation of'the type1 3 5 shifting mechanism.

. Typle-sh'iftlng mechanism-J have stated that t ere are double the number of divisions on the type-wheel that there are keys, so that A it is-'necessary to at timesshift the type? 4o wheel on its shaft in order to bring the proper 'character in printin relation to the paper, and this is accomplis ed by manipulation of the keys b b2 of the keyboard B and mechanism controlled thereby, which Ishall del scribe.

Thetype-wheel 27 is loose on the shaft and i's provided witha hub 120, (see Fig. 7,) having oppositely-extending arms 121 and 122, to which are pivoted fingers 123 124, lrespec- 5o tively. The hub 120 has still another arm 125, which is at right angles to those pre- 'viously described and which has a down-l wardly-pr'ojecting in 126, the end of which i's' beveled.

two stops 129 and 130, between which the pin l 126' may. play. The arm 128 has in addition p to the sto s 129 130 a bevel pin or projection 131, Whic is adapted to hold the pin 126 be- 6o tween it and either of the stops 129 and 139, so that the type-wheel may be held in'either Rigid y secured to the shaft 28- is another hub 127 with an arm 128, having hub 127, and therefore permits the yielding of the type-wheel and the passage of the pin- 126 in one direction or the other past the beveled (projection 131. The hub 127 is also provide with another arm 134, havin uides 135 for the two fingers 123 124. Afgf ed to the front of the carriage is the bracket .84, to which reference has been previousl made.

the manipulation of either of the two shift-- This bracket is provided with a bloc l or abutment 136 of insulating material near keys one or, the other of the fingers l123 124 i will engage the block when the type-wheel is swung toward the aper. Hence upon the pressing of a shiftrey on the keyboard the type-wheel'shaft 28 will be stopped with a blank'space opposite the paper, and as the type-wheel is moved toward the pap'e'r the end of one of the fingers 123 or 124, as the case may be, will engagethe insulated block 136, so that the' type-Wheel will bev shifted "one space in ofie direction or-the otherirelatively to its shaft.

In Figs. 8, 9, 10, and 11- the operation of the' atypeshifting mechanismis illustrated. In Fig. 8 the type-Wheel has beenstopped with the finger 124 opposite the block 136,' and in Fig. 9 the position of the parts is illustrated -after the type-Wheel has been movedA forward toward the paper to cause the end of the finger 124 to engage the block and shift the type-wheel relatively to its shaft. In Figs. 10 and 11 the position of' the parts is illustratedbeforeand after the type-wheel has been shiftedin the op osite direction. One 'of the shift-keys on the eyb'oard B``as b2, for instance- (see Fig` 18,) causes the type- Fig. 8, Whereas the key b causes the said shaft to be stopped, asin Fig. 10,' with' the finger 123 in operative relation to the block x and the letter a has been printed and the operator desires to then print the letter X, he will effect the shiftingof the type-wheel upon the caria e by manipulatcase may be, and then again maniprlating -th'e key b4 to effect the printing of t letter x. At no time will the shaft 28 be stopped :with either of the fingersv 123 124:"inoperativerelation to the\`nsul'ated blok.'136,exl ce t when one or tlie\et r'of the shift-keys Itis necessary that theitype-wheel carriage should. not be advanced one step when the type-wheel is being merely shifted, and consequently I provide means for rendering ius '1.25

active the carriage-feeding pawl' when either of the shift-keys 1s depressed.A The mechanism bywhichl this is accomplished is illusshaft to be stopped in -the position shown in 136. Assumingfor instance, that the key-v Y b* in Fig'. 18 is used for the letters a and b 2 has been manipula d 'by the oper'al'irihA img one or the other of the eysb b, asafth'e I trated in Figs. 1, 2, 3, 6, 9, and 17. Referflew'continuously through the magnet which i position only when one of the shift-keys is plate 151, which is secured upon. the bed of chine, as shown in Figs. 2, 4, and 17, and

subsequent movement of the tailpiece 140 y of the feeding-pawl 55, and so render the bracket 84 is rcvided With a spring-contact rWhen one of the shift-keys is manipulated by traction of the armature 144 by the electro;-

ceases ring particularly to- Fig. 6, it Will be seen that the carriage -feeding paWl is provided with a tailpiece 140, with Which may be engaged an end of an arm 141 on a rock-shaft 142, jonrnaled in suitable bearings.. Around therock-shaft is coiled a spring 143, (see Fig. 3,)Avhich holds the arm 141 normally in inactive position, as shown in Fig. 1 and by the dotted lines iii-Fig. 6. To the end of the shaft 142 is affixed an arm 144, which forms the armature of an eleetromagnet 145,` arranged vertically on the right-hand side of the maconnected inseries With the motor and in multiple with the magnets 51 and 66.. The movement of the armature away from the electromagnet is limited by a stop-pin 146. When a current is passed through theelcctromagnet 145 the armature 144 is attracted and the arm 141 is movedto the full-line positionin Fig. 6, so as to arrest the paWl inoperative With relation to the ratchetsegment 50. It will be recalled that each time any one of the keys of the keyboard is manipulated by the operator the current Will eifects the feeding of the typeeivheel carriage and the operation of the type-Wheel, and in order that the electromagnet 146 may be energized'to move the feeding-pawl to inactive defressed it is arranged in a shunt-circuit 7L. 3. (See Fig. 17.) This circuit includes the bracket 8.4, which is insulated fromthe remainder of the machine, the shaft 28 for the type-Wheel, a portion of the frameworkl ofthe machine, Which in Fig. 17 is indicated" Iat la', a ymovable switch 150, and a contactthe machine, but insulated therefrom. The

152, with Which will be engaged a contact 153 on the arm 134, the said contact 152 being loing enough so that it will be engaged Aby said V"contact 153 'when the type-Wheel shaft is inthe position shown in Fi s. 8 and 10. The contacts 152 and 153 Wil be engaged only when one of the shift-keys 'is manipucontact 153 in such position that vupon the movement of the type-Wheel to` printing position the contacts will not be engaged.

From this description it Will be seen that the o erator to effect the shifting of the type- Wheel3 on its shaft in the manner described the rock-shaft 142 Will be actuated by the' atmagnet 145 andthe arm 141 Will be'moved .ing-sprin 58.

from the dotted position shown in Figi 6 .to 65 the full-line position, so as to preve t the ,feeding-pawl from dropping into afresh tooth of the carriage-ratchet segment 50.

Automatic switch m'ec7Lanism.-The switch 150, to which reference has been made, is secur-led upon the shaft '93, which, as will be remembered, supports the'paper-feeding Wheel 86. By reference toFigs. 2, 4,'and 17 it WillA be'seen that the switch 150,\Which is flexible and which When the shaft 93 is in its normal position rests u onthe contact 151, normally completes an e ectrical connection from the type-Wheel shaft 28 to the electromagnet 145. In this embodiment of'thei'nvention it is necessary for the operator'when the type- Wheel carriage reaches the Vend of a line to depress a shift-key in order that the carriage may be automatically returned by the return-" To this end the electromagtvr net 66, W 'ch when ener ized eH'ects the lift' ing of the retaining-paw? 60, as hereinbefore described, is arranged inv a, branch circuit m in series With the motor and in multiple withv the electromagnetic mechanism Which effects the: feeding of the carriage and the actuation of vthe type-Wheel. B an examination of Fig. 17 it will be seen t at the branch circuit m includes a contact-plate 160, arranged adjacent to but insulated from the contactplate 151, so that itmay be engaged by the s'vvitch 150 when the shaft 93 is roc red by the spring 103 after the release of the stop or stud 1-02 by the latch 106. v

Assuming that the carriage has reached the end of ajline and the sto 107 has engaged the latch 106 and release the stud 102, the passa eCof a direct current of electricity through t eimagnet 51 causes the armature 52 to rock the shaft 53 and lift the arm 108.

The arm 101 on the shaft 93 will then be rocked bythe spring 103 so as to bring the Switch against the stationary contact 160, so that current Will flow through the branch circuit m when the contact 153 on the tvpe-wheel shaft engages thecontact 152 on the bracket 84, which bracket, it will be re membered, is electrically connected with the switch 150. -The magnet 66 bein thus ener- 'gized, the retaining-paWly 60 Wil be lifted, carrying with it the feeding-pawl 55, so that the carriage Will be automatically returned l by the spring 58 to its starting-point. It is freqliently desirable to feed the paper several steps-as, forinstance, to separate one paragraph of printed matter by a large .space -from the preceding paragraph. Tins is accomplished When the carriage has reached the end of its line, so as to free the latch 106 from the stud 102 by the`manipulation of the space-l ey. When the parts are all in the position last,described, the operator may manipulate the space-key as many times as he desires Without printing any character upon IOS .TIOl

f theelectromagnet51which through 't a stepupon the subsequentaction o.

the paper,l and effect the-feeding ofthe for theidepres'sion ot the lspace-key can.y direct. current of electricity to .iiow t 'n matureliftsthe arm 108 andreleases the 101, sc thatfwthepawli; is moved bj, spring 103 .or afresh tooth tofeed the y spring 57.- often as the space-key is depressed by'gthe, operator vthepaperwillbe fed one-step.

l The' ,electrical Wanita-[have yin some measure desoribedthe eircuitrelationsrof the parts but they may be funther, deslfbed as o llows, reference being. hadto. Fig. 17 From the binding-screw 1 1 L a Iconductor n extends to a b indi ng-screw'v on .theside ofgthc motor. In actual practice :thise conductor, which is suitably insulated, is carriedtoa .cap 1 70 on are eDnneGted. in series with the-motor,.but in g thee' ectromagnet 51.

multilplewith relation to..each lother and to Alumept-vszhen oneof I thev keys in the keyboard is depressed an alternating .current flows .through the Vmotor, the periods or alternations, however, beingof such short duration as to prevent the attraction. of the armature52 byrthe electroinagnet 51, althoii h they areofsufficient duration to cause t e operation of the motor in the manner previously described. vvWhen oneof Ithe keys is depressedso that the stop-wheel F is heldq against rotation, a current of one polari'ty or the other flows continuously through the-motor and theelectromagnet 51, so as to hold the armatureof the inotorin the 'positionin which it Waszstopped and cause the attraction of the armature 52 by the electro- .magnet 51 and theoperations which are con- Vse uent thereupon. i i

t will be understood that the transmitter is connected by branches-from a single main circuit to a plurality of machines, so -that a single. keyboard will control all ofjthe inachines, and since but one circuit is employed .and said circuit is grounded, as hereinbefore described, the cost of installation of a system emhodyingmy inventionwill be much y less than has been possible with previous page-printing machines, in which atleast;

two distinct circuits from the central Station was essential.

y I herein refer to` that element which :carries the printing-types as the type-Wheel, but, I do not use that term in any-limiting sense, for it is evident that so far as certain other features of the invention are coneei'ned any pther ofthe Well-knownprintigg -imechnismS-Or type-.carriers @erbarmployed as mechanical equivalents ,therefor.

Lhayedescribed the motorinadtil; ibut Ido not. claim it per se, as it forms vthesiibject-matter of an application, Serial -No.

250,160, filed March '15, 1.905. Concerning the "motor, it maybe state that. since the momentum. causedx by. a ch nge of polarity-I 'throws the fingers past the lcentral ma ne'tic-l lines of Jforce to let the paWl dropbac of a toothI a ainst the pawl, and the,paW1 therefore in exes or positions tlie armatureand the t e-wlieel. Since the fingers arekpast. the po es, thenext change of polarity. causes the fingers .to beadvanced instead of retarded. The motor controlled as described by the keys or'tlie key-controlled transmitter serves to :rotate andfselectively.position 4the type-Wheel. The inotor, the transmitter, and the keys may thusbedescribed as an electromagnetic selecting mechanismfor the 4type-Wheel or the printing mechanism.

tooth in the ratchet the back dragholds the Having thus explained .the nature of the 9o invention and described a Way of .constructing and using the same, although Without atv temptingto set forth all of the forms in which it maybemade or all of the modes of its use, I declare that what I vclaim is- 1. In a type-writing machine, a rotary type-Wheel, and 'means for moving Said wheel bodily in the are of a .circleabout an axis eccentric to and substantiallyparallelto the axis of rotation of .said wheel to bodily feed the Wheel to new printing positions.

2. In a type-Writing machine, aXrotary type-wheel, means for', moving said type- Wheel about an axis veccentric'toand.substantially arallel yto the axis of the typewheel, and) means forv moving said type- Wheel radially ofsaid .eccentric axis.

3. In a type-Writing machine, a rotary type-wheel, means for lfeeding saidt. ewheel withan intermittent movement agu't lan axis eccentric. to the type wheel, and means for returning said type-Wheel' with. a continuous motion about said axis.

4.. In.a type -writing machine, a rotary typelwheel, means for feeding said typewheel `With an intermittent movement about an axis in the arc of a circle eccentricto the type-Wheel, and' means for moving said typevi neel' on an axis transverse to the first-mentipned axis -to impart an .impression stroke t ereto. 5. yIn..a type-writing machine, a rotary type-wheel, means for" rotating said, typewheel to selectedpositions, and meansfor automatically. thereafter feeding said typewheel. witha step-by-step motioni about. an axis eccentric to and substantiallyvparallel Ato theftype-wheel.

6. In a type-Writing machine,. a carriage movable` about an axis to feed the type-carl ing said carriage in the opposite direction.

rier through an are, a type-carrier pivotally l connected to said carriage on an axis transverse to the first-mentioned axis, and means for moving said type-carrier about its pivot radially relatively to said axis. ,y

Z7. In a type-'writing machine, a carriage` movable about an axis to feed the type-carrier througlian arc, a Jframe in which said carriage' is journaled, a type-carrier movably connected to said carriage to move in a direction radially of said axis, and means for /moving said typecarrier.

8. In a type-Writing machine, a carriage movable about an axis to feed the ltype- Wheelthrough an arc, a frame in which said carriage is journaled, a type-Wheel rotatably journaled on said carriage, means for moving said carriage about its axis, and means for moving said type-Wheel bodily radially ofi said axis.

Q. In `a type-writing machine, a carriage movable about `an axis, means for moving said carriage with a step-by-step movement about said axis, a type-wheel journaled on said carriage, and means for rotating said type-Wheel to .selected positions independently of the movement of the carriage.

l0. In a type-Writing machine, a carriage movable aboutfan axis, means for moving said carriage with a step-by-stepmovement about said axis, a type-wheel liournaled on said` carriage, means for rotating said type- Wheel to selected positions independently of the movement of the carriage, .and means for moving-said type-wheel transverselyoll its own axis of rotation.

ll. In a type-writing machine, a carriage movable about an axis, means for moving said carriage with a step-by-step movement about said axis, a type-whoel ]ournaled on said carriage, means for rotating said type wheel to sdlected o'sitions independentl')Y of the movement of 4t e carriage, and means for moving said type-'Wheel in lines substantially radial to the said axis of movement of said carriage.

12. In a type-writing machine, a type-carrier, a carria e on which said type-carrier is mounted, a ame in which said carriage is journaled to move about an axis, a toothed segment on the carriage, and means on said frame for engaging and moving said toothed segment step by step to feed the carriage and thereby the type-carrier relatively to the paper.

13. In a type-writing machine, a type-carrier, a carriage on which said type-carrier is mounted to be bodily moved thereby, a trame in which said carriage is journaled to move about an axis, a toothed segment on the carriage, means on said frame i'or engaging and feeding said toothed segment step b v step to feed the carriage, and means for mov- 14. In a type-Writing machine, a type-carerier, a carriage on which said type/barrier is mounted, a trame m which said carriage 1s journaled to move about an axis, a toothed segment on the carriage, a retaining-pawl engaging said segment, a feedin -pawl and means Jfor disengaging said panv s to permit the return of the carriage.

15. In a type-writing machine, a type-caru rier, a carriage on which said ty e-carrier is mounted, a trame in which sai carriage is liournaled to move about an axis, means for feeding the carriage, means for returning said carriage, and independent )keys for controlling said carriage i'eeding and returning means.

i6. In a type-Writing machine, a concave platen, and a type-carrier movable across said platen in a path substantially concent'ric to said platen.

17. In a type-writing machine, a platen haring a concave face, a type-carrier movable across said face, and means for effecting a relative movement oi said platen and carrier in aline connecting them.

18. In a type-Writing machine, a laten having a concave iper-supporting lace, a type-wheel, movab e across said face, inea-ns for rotating the type-wheel, and means for striking said type-wheel against the Jface of the platen or the paper thereon.

19. In a type-Writing machine, a t pewheel movable about an axis, a laten aving a concave face concentric Wit said axis, means Jfor rotating said type-Wheel to a selected position, and means for moving said type-wheel radially of said axis to engage paper on the face of the platen.

'20. In a type-Writing machine, a type- Wheel movable' about an axis, a laten having a concave face concentric Wit said axis, means lor rotating said type-Wheel to a selected position, and means for moving said type-Wheel in successive radii of said axis to print a line on paper on the face of the platen.

21. In a type-writing machine, a type- Wheel movable about an axis, a platen having a concave tace concentric with saidaxis, means for rotating said ty e-Wheel to ase-, looted position about an in( ependent axis to a selected position, means for feeding said type-wheel about said first-mentions axis across the face of the platen, and means for moving said typo-wheel radially of said iirstmentioned axis toward the platen.

22. In a type-Writer, `a platen having a concave paper-supporting face, means for maintaining the paper against said face and means for feeding paper longitudinallynf,` said face.

23. In a type-Writer, a platen having a concave paper-supporting face, means for maintaining the paper against said face, meansy for feeding paper longitudinally of said face, and a key controlling the operation of said paper-feeding means.P

IOC

IIO

24S In a'type-Writing machine, an electric motor; a typeewheel rotated thereby,` an elecy tromagnetic mechanism for feeding said 'Ino- .torf andtype-Wlieel, and an'electric circuit 5A for supplying current to said motor and feeding mechanism.

25. In a type-Writing machine, an-electrie motor, atype-wlreel rotated whereby, an elec-4 tromagnetic mechanism forfeedingsaid mon. tor-'and'type-wheel in series connectiorrwith said-motor, a key-controlled pole-changer ore transmitter and an electric circuit in seriescoiinection with said transmitter, and saidf motor'and feeding mechanism-.f

v26. .In a' type-Writing machine, an electricL motor, wtypewifheel rotated "thereby, an elec:

' tromagnetic .rnelchanism for feeding said me tor? and typeetvheel, and a key-controlledpole-changer or transmitterin series connecu ao-'tionwith said motor andsaidelectromagtate it', a 'paper-feedinv device, an electro-l magnet controlling-sai device, an-electric' 35: circuit-including said electroma net'and'said motor and means whereby sai pa-perfecti-v ing device is operated selectively. .I

29. In atype-Writing machine, a type,- Wheel, a motorA connected thereto to rotate and selectively osition it, means for'feeding .v said'type-Whee an electromegnetlfori con t trolling said feeding means, means for effect* ing the return of the carriage, an electromagd'- net= controlling the lastmentioned means," 45 anni :an electrical conductorl electricall connected with said motor' and said e ectro magnets, whereby current may b'e supplied thereto from the same source.

30. In a type-writing machine, a' type- 5oi'wvheel, a motorconnected thereto -to rotate and selectively osition it, means for feeding said type-Wheel? an electromagnetf for controlling saidfeeding means, means for-effecting the return of the carriage, an 'electromag- 55- net=controlling the lastmention'ed means, an electric circuit including said motor and said electromagnets with said electromagnets in ne ltiple to each other, and means in said o Y circuit for cutting into and out of said circuit',

6E: the .electromagnet which controls the-car- `I'iag'gercturning means.

31.5In a type-Writing machine, a type* wheel,- a motor connectedgthereto to rotate and selectively osition it, means for feeding (fg-,1 said type-Wheei an -electromagnet` for' conscenes( 'trolling said feeding means,- means for effect ing they return of the carriage, an felectrci magnet controlling the istat-mentioned means l an electric circuit including in multiple to each other, and anvautomatic I said motor and said electromagnetswith said electromagnets`A device in 'said circuit controlled by the typeu 1 Wheel for cutting into andV outof the circuit the electromagnet- Which controls the car#- riagesreturning means.

32.' In a type-writing machine', a rotary type-Wheel, a motor to rotate and selectiveljr osition said devicesfor'feeding the carrie e,

e-v'icesforreturni-n feeding the paper, eectromagnets operating ori'control'ling said devices, and ay singlecir'- cuit including said motor 'and-saidelectro magnets, whereby current from the same sourcefsupplied :over a vsingle conductor may be used for energizing them.

33;- In a typefwriting machine, a rotary type-Wheel-, a motor having a'rotary arma- "ture connected to said type-wheel to rotate and selectively position' said type-Wheel;

separateI electromagnetic instrumentalities for'feeding, returning and actuating the type.- Wheel, and for feeding the paper, and asin'gle electric circuitinclu'di'ng said ymotor and said instrument-alities whereby4 current may' v "efesupplied thereto over a single coiducter from# onesoin'ce,l

type-wheel, a -motor having a rotary armature connected to the type-Wheel ftorotate' and selectively position said typeltgvlfeel,

separate electromagneticv instrumentamie's'v forfeeding,returnin and actuating-the type 'Wheel and forfee ingthe paper, a pole-- changer' or transmitter-1in series connection'4 said motor'1 and -said:'electroma ctie strumentalities, end 'ariuralityf 'eye con trollingsaid transmitter including a special key for "tirel type-Wheel-returning instrumenh4 taiity".

35. Iir=a-typerwriting machin-e, a-retary type-wheel, a motor connected thereto to rotate and selectivelypnsitionit, me s for pivotally supporting' -saidtype-Wiles and motor to permit them to swingliodily` about the same axis which is eccentric'to the axis of rotation-- ofI said type-Wheel, and means for "movingsaid type-Wheel about still-another axis to impress a characterupon thepaper;

36.- Ina' type-writing machine, a rotary type-Wheel, an electric motor, gea-rin" corinecting the' motor endg-the ty'pe4v"fl"ie i and means for pivotally supporting'-fsaid type- Wheei andsaid'motoraig) Fseillate aboutfthe same axis.

37. In atype-Writi'ng'machine, arotary type-Wheel, an Y electric motor for' rotatin and' selectively positioningsaidtypewvhee connections between the motor and the type- Wheel, means-forpivotally supporting saidvv typeewheel and 'motor on thev same axis, and

thefcarriage, devices or' 34. In a type-Writing machine7 a rotary-'i eeacee means for mov'mgseid. motor and said typewlieel about the said exis to feed the type Wheel relatively to the paper.

38. ln a typowriting machine, a carriage, a type-Wheel connected to tbe carriage, a motor connected to said carriage and havinv a driving member, connections between said' driving member and the type-wheel to irn-y part rotation to said typeavbeeba support in which the-carriage is pivoted, to oscillate about an and means for moving said carriage about said axis to feed the type Wheel relatively to lthe paper.

:39. ln a type-Writing machine, a typevvheel, a shaft therefor, a pivotal support for said shaft, a motor having its driving meinber positively connected to said shaft to rotate and selectively position it,7 connections between said support and a relatively stationary part of the motor, means for actuating said pivotal support to cause the type- Wheel to impinge upon .the paper, means for pivoting the motor and the support upon a common axis, andJneans for moving saidl motor and said support about said axis.

a0. ln a type-vvrit1ng machine, a type- Wbeel, a shalt therefor, an electric Amotor having its armature connected to said shaft to rotate and position said t e-Wheel, a'snpport for the said shaft pivote ly connected to a station ary part of the motor, means for pivotally mounting the motor and the support to move about a common axis substantially parallel to said type-Wheel shaft, and an electrom-agnetic mechanism for movinv said support about its pivot relatively to t, e motor.

1li. ln a type-,Writing machine, a type wheel, a shalt therefor, an electric motor having its armature connected to-said shaft to rotate and position said type-wheel, a support for the said shaft ivotally connected to a stationary part of tne motor, means for pivotally mounting the motor and the support to move about a common axis substan" 'tially parallel to said type-wheel shaft, and

electroni agnetically controlled instrumentalities for alternately actuating said support and feeding said support and motor about their common axis. f

42, ln a type writing machine, a motor mountedtoA swing bodily about an axis, a

- platen having a concave face substantially y axis.

concentric with said axis, a type-wheel, a t 'pe-Wheel shaft, an oscillatory support for t e type-wheel pivotally` connected to the motor on an axis transverse to the Iirst-rnentioned axis, a ower-transmittinfr connection between the riving member ol the motor andthe said shaft, and instrumentalities for moving said motor about its axis and for moving seid support about said transverse 43,. ln la type-Writing,1 machine, an electric 'motor mounted to .swing yabout 'a substan,

"7 ller.

tia-ily vertical axis, a platen lnwingjr e concave face substantially concentric withsaid axis, a type-Wheel, a type-ivheel shaft, an oscillatory support for the type-Wheel shaft pivotally connected to the motor on a substantially horizontal axis, a powentransmitting connection bi 'een the typewheel shaft ,and the driving member of the motor, electromagnetic instrument clitiesfor moving the motor about the vertical axis to 'leed the type-wheel relatively to the platen and for actuating said support to move the type- Wheel toward the platen, and means for supplying current to said motor and to said electromagnetic instrumentalities.

44. In a type-writing machine, an electric motor mounted to swing about a substantially vertical axis, a platen having a conu cave face substantially concentric with said artis, a Vtype-Wheel, a type-wheel shaft, en oscillatory support for the type-Wheel shaft pvotally connected to the motor on. a substantially horizontal axis, a power-transmitting connection between the type-wheel shaft and the driving member of the motor an electromagnct and its armature, an means actuated or controlled by said armature for movinft,r the motor and the support about the vertical axis and to move the support toward the platen.

45. ln a type-Writing machine, a motor mounted to swing about a substantially vertical aXis, a platen having a concave face substantially concentric with said axis, a type-Wheel, a type-Wheel shaft, an oscillatory support for the type-wheel shaft pivotally connected to the motor on a substantially horizontal axis, a power-transmitting connection between the type-wheel shaft and the drivingr member of the motor, an electromagnet and its armature, means actuated or controlled by said armature for moving the motor and the support about the vertical axis and to move the support toward the platen, a source of electric current, and electrical conductors connecting said motor and seid electronmgnet in series with said source.

46. ln a 'typo-writinny machine, a motor mounted toswing about a substantially ver tical axis, a platen having a concave face' substantially concentric .with said axis, a type-uf'heel, a type-wheelsbal't, an oscillatory support for the typefwlieel shaft pivotally connected to the motor on a substantially horizontal avis and having an actuating member intersecting the said vertical axis, a power-transmitting connection between said shaft and the driving member of typelsvheel, an oscillatorycarriageltherefor having, a' --ratchet-segmen .l 'controlled ff I tion/of the lastmentioned device.

48.- .ln a type-Writing machine, typewheel, an l-voscillato1 lcarrier' therefor 'a 'feleding-pawl therefor, a re'taming-pawl, carriagfreturning means, an electromagnet for causing the actuation'o'f the feeding awl, an velectromagnetxfor'rendering the ceding-pawl and the retaming-pawl active, means current to said electroma or suwlymg ets, and means bythe carriage or controlling the supplyof current tothe electromagnet by "which'said p'awls are rendered inactive.

trolie'd printing' mechanism, carriage, and pa ,prisng a fa *4911 In a type-writing aper 4is ine, 'a spring-operated:4l actuator for said dedevice inactive with the spring un flatch, whereby said pa er-feeding device. ,4 I 50.4 n a type-writing/machine, key-con -trolled printing'mechanism, a key-controlled carriage, -prising a Vpaper-feeding roll, a ratchet connected thereto, a

sion, and a stop on thev said latch.

`'vica-fa latch for rendering 'said pa and a stop on the carriage for tripping said and paper-feeding mechanism com,-

awl-carrier having'a pat/"l for engaging an spring for moving said carrier, a ey-corb 'trolled device for controlling or actuating'the pawl-carrier, 'a latch for rendering the pawlf carrier inactive with the spring under tencarrier for tripping 51. In a type-Writing machine, a printingmechanism, a carriage, a carriage-feeding means, a carriage-retaining paWl,' a spring connected to thev carriage tolreturn it,' a switch, means on the carriage for causing the switch to close an electric circuit, a key-controlled circuit, -and an electromagnet for moving the retaining-payvLto active position when the circuit is closed" therethrough by said switch and the manipulation-of a key.

52. In a'type-Writing machine, a key-controlled make-and-break device; a switch; an

eleotromagnet,- an electric circuitkincluding,

said make-and-break device, said switch and I said electromagnet; a movable carriage; carriage returning means controlled by said electromagnet; and means by Which the carriage, controls said switch whereby the carriage may he returned When the carriage has reached a predetermined point and the' makeand-breallr'device is operated,

actuating the feeding--` a rotary machine, key-cona key-controlled er-feedng mechanismv comerceding device by W f'ch theat right angles to the lrinted.'

er-fecding i er tension H saidl actuator may operatey n position.

' 53. In a" 'i efwriting machine, a movable carriage; 'a'` e -c'ontrolle'd"make-and-break device "an electromagne't v a switch an tric circuit including 'saidl'riiale-'and-break device; said electromagnetf and. said switch; `means "by which 'the carriage causes the auto- 'matic closing l i g reaches a predetermined point in, its `nrmvement; carriage-returning' means, andl 'a cartive position b said electrnagnet." l

54. Inj a t e-'writing machine, `a rotary 't e-wheel havingl tvvo; jset's "of characters t eremgitahaft on which said typewvheel is journaled, 'meansfor rotating and selectively ositio'ning sad shaft and; e'aidiwheel, means orroatively shifting said Wheel' relatively .to said shaft to bring'one or theother of. said sets of haractersv into printing relaticmand means for `maintain'ing-saidfvlhlael in'its shifted position.

55.--In a t for selectively positioning saidjt e-vvheel comprising a pluralityLof charautel"J eysless swrtiiis" maehiaai i f "type-'wheel having characters'thereon m for selectively {com rising'a rot ofc ara'eter-keys` lsaid characters`V fon the'g'typeswheel, 'means lwhereby said "Wheel 'may 'be 'shifted the space of one character relatively vto said :rotary member, to permit'.some orfall'of said keys to' be used for the printing ofe'acli of two chara'cters,- and means on saidfrotary memberifor maintaining said type-'whceljn its f'shifted BEDS vmember 'anda plurality type-ivriting Imachaine,

ahntrolled means r rotating and selective y pos1tzoning said type-wheel, 'tivo shift-keys, means by which onthe manipulation or' eithery ofsaid ke sthe typeuvheel will be rotatively shifted re atively to said positioningameans and meansfor maintaining `said vcase may be, l g

its shifted position after one tively to said positioning means to bring the remainder of said elecof the switch when the 'carriageriage-retamer adapted tobemoved to inac- '1 tvpe-Wheel having characters thereon, he

been struck untilthe other for rotatively shifting said `type-wheel `relacharacters into potential?y type-wheel having characters therdonfmeans in number than the-'characteis Een thet'ypel'.Wheel, fmeans" for rotatively shifting said wheelwhereby one of said 'keys may be jem'- 4 .positioning said typischen f either in one directioncr the 0therasthe

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