US1055027A - Type-writing machine. - Google Patents

Description

J. PE LBEL. TYPE WRITING MACHINE. APPLIOATIDK FILED JULY 13, 1911.

Pamented Efiar.4,1913.

6 SHEETS-SHEET 1.

v/wNE55E5= |NvEN uR= I J. FELBEL.

TYPE WRITING MACHINE. APPLICATION FILED JULY 13, 1911f Patented Ma". 4, 1913.

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d L (m \A/I'FNESEEEL J. FELBEL.

TYPE WRITING MACHINE.

APPLICATION FILED J'ULY13, 1911. 1 055,027, Patented Mar. 4, 1913.

6 SHEETE-BHEET 3- F: GA.

J. FELBEL. TYPE WRITING MACHINE. APPLICATION FILED JULY 13, 1911.

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wjg r B Q In (Q 2? WITNESSES= |NVENTUR= Patented Mar. 4,1913.

I J. FELBBL. TYPE WRITZNG EAGEINE, APPLICATION FILED JULYIS, 1911 Patented Mar. 4, 1913.

6 SEEETS-SHEET 5.

INVENTEH= J.FELBEL. TYPE WRITING MACHINE. APPLICATION FILED JULY 13, 1911.

. 5, 27, Patented Mar.'4,1913.

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BEST AVAILABLE CQP Jsco's I mission roan, N. Y.', ASSIGNOR. gar MnsNn ASSIGNMENTS, T UNION 'rrrswnrrns. conramr, or annssr'crrr, NEW JERSEY, a conrorwrrox or NEW JERSEY.

'rYrE-wsi'rmd Macrame.

Patented Mar. 4, 1913.

Application aim M1118, 1911. Serial No. 638,248.

To all whom it may concern.

Be it known that I, Jscos- Fsnsmn, citizen of the United States, and. resident, of the borough of Manhattan, city of New York} in the county of New York and State New York, have invented ertriinnew and useful Improvements in Type-WrmngMachines, of which the following is a'spec fication.

My invention relates to typewriting machines and more particularly to type actions.

The main object of. my invent on, generally stated, is to provide an eiiicient construction in which a gradual acceleration in the movement of the type bar is effected as it approaches the printing position thereby providing u -type action'which a ords an easy start and 'a light touch at the initial part of the key depression.

A further object of the invention is 'to provide a type action of the character re ferred to above in which there is a uniform levers e and a uniform. dip of the keys throug out the system. A still further object of the invention is to provide an eflicient const'rnction ,in which there is an elimination of all, or substan tially al1,.side strain or-pull in each'action throughoutthe system.

type bars may receive a case shitting move- To the 'above and other ands which will hereinafter appear, my invention consists in the featurcs of construction, arrangements of parts and combinations of devices to be pointed out in the applauded claims- In .the "'accompany g drawings wherein herinitter' described and particularly like reference characters indicate correure' 1 .is a fragmentary vertical,'fore and spondmg'parts in the various-views, Figaft, sectional 3e? showing a suflicientnumber pi psrts f rtypewritionf machine to illustrate one' formor emb imentyof my invention. Fi .2 is an enlarged detail side of one o the angular actuating levers employed in the type action shown in Fig. 1. Fig. 3 is a vertical, transverse sectional view of the construction shown in Fig.- 1, the section bein taken on the line :c-a: of Fig. 1. 'and looking' in the direction of the arrow at said line. Fig. 4 is a diagrammatic plan view showiiig a-portion of the system of Another object-of-the invention is to construct and arrange the parts that the .type actions. Fig. 5 is-a fragmentary vertical, fore and aft sectional view showing a modified form of construction embodying my invention. Fig. 6 is a like view of-a still further modified form of construction. Fig. 7 is a like view but showing still another modification.

In the :drawings I haveshown only so much of a typewriting machine as is. necessary-to'arrive at an understanding of the invention.

In each of the constructions shown in the accompan ing drawings the invention is illustrate embodied in a'front strike machine to which the invention is more particularly directed.

Referrin first more particularly to Figs. 1 to 4, inc usive, the frame of the machine comprises a basejl, corner-posts 2 and a top plate 8. A platen 4' diagrammatically illustrated, is sup orted in a suitable carriage (not shown) or movement across the top plate from side-to side of the machine. A series of'type bars ,5.are pivoted in an arc in any suitable manner on-an'u right type bar,se cut 6, to swing upwar y andrear- .wardly to the printing point. In the presentjnstsnce I avemhown'the' type bar segment slotted 740 receive the type bars 5 which turn onapivot wire 8, the type bars normally resting in .an are or segmental arran' ent .correspondin to the pivot wire 8.; he type bar-'seg nen 6 -is shown in the present instance'as a vertically movable segment i ed in its vertical movementhy anti-friction balls or rollers 9 which are received in; ways in the sides .ot the segment guides 10 secured to the top plate of the machine. Supporting rods 11 project forwardly from the type bar segment and support a ty e rest 12 at theforward curls thereof; t e type rest support-ing the free ends of the type bars in the usual manner. It will thus be understood that the segment in the present instance is mounted for vertical case-shifting movement relatively to the platen, iilthough from certain aspects of the invention it is immaterial how the relative case,shiting movement between the type bars and the-platen is effected; 1'. 0.. whether it be by shiftingihe type bars or the platen. Each type bar is connected to :1 contractile returning-- spring 13 which in turn is connected to a hook 14 carried by BEST AVAlLABLE COP bar. and extends 'rearwardly therefrom (where pivotal fconnection is madefat- 1G toe-sub:

lever 17 of the first order; said lever being' pivotedon a currcd pivotwirc -18 'and received and workingin a slot 19 in a'fixed vertical segment-Q0. The various sub-levers 17 are radiallydisposed and are of uniform size, as indicated in- Fig.3; the upper ends of the sub-lerersheing arranged in an are which corresponds substantially. to the-arc in which the type bars are pivoted. The rear edge of each sub-lever L7, below the pivot 18 thereof, is preferably curved to form'a curved contact face or edge 21 for cooperation withthe contact face or edge 22 on a companion; sub-lever 23 of the second order. This companion sub-1ever is mounted at its upper end on a curved pivot wire 24 and works inv a radial slot 25 of a fixed upright segment 26. Each sub-lever 23 is pref-.-

erably of some such shape as that illustrated in Fig.1, in order that each sub-lever 23 may in the normal positions'of the parts engage the companion sub-lever 17 near the lower end thereof. During the depression of a key a rolling ccint-act will be effectedbetween the'companion sub-levers to bring the point of engagement between them nearer thepivot. of the sub-lever 17 as the depression of the key. continues and as is indicated in dotted lines in Fig. 1. The sublevers 23 are radially arranged to correspond to the radial arrangement of the sublevers 17, so that the two series of: sublevers will be presented edge to edge for cooperation. Preferably each sub-lever 23 is provided with forwardly projecting guide lingers 27 on each side thereof for eofipertb tion with the companion sub-lever 17 to ,revent relative lateral deflection of the subovers and maintain them a't-all times in cooperative relation. ,The lower endof each sub-lever 28 is pivoted to a forwardly projecting pull link 28, connected at its for-' ward endto the upight arm 29 of an angular sub-leverBO. *ach angular sub-lever is pivoted at 31 to a'hanger 32.connected by a threaded stem 33 and a nut B l-teen upright segment 85. The forwardly projecting arm 36 of each an lar sub-lever is ivoted at 37 to a dc ending pull link 38 w ich in turn is pivoted at 39 to a key lever 40 of the second order; the various key levers'be-v mg pivoted on a pivot rod 41. Each" key lever carries a finger key 452, and areturning spring 18 cooperates with each key lever to return it and the parts connected therewith to normal position. From an inspection of Fig.18 it will he. observed that the'angular au even: 30 are all of a uniform size and are disposed-m parallel vertical planes ex tending fore and-aft of the machine in 11 segmental arrangement, and that the links 38 correspond to those shown in the rareof'gradually increasing lengths from the center to the sides of the system to compenangular'sub' levers. ,It will also be observed from'anins ection of Fig. 3 that eachlink '28; extends in a straight line fore and aft of't he machine directly back from the up right arm 29 of its angular sub-lever to tie lowerend of the companion sub-lever 23.

vItfollows therefore that at the depression of a key a direct fore and aft pull is effected from each angular sub-lever to its compan- 1on sub-lever,23.

Moreover, the arrangement is such that the sub-levers 17 and 23 for each ty e bar extend from the type bar to a point directly above the associated key lever, sothat movement istransmitted from the key lever to the associated hell crank in a direct fore and aft vertical plane and this movement is t ansmitted to the associated link 28 in the same plane to the lower end of the companion sub-lever 23. Compensation is made therefore for the difference between 'the width of the system of type bars and the system of key levers and all lateral or side strain is avoided. The sub-levers .30 being sate for the segmental arrangement. of the of uniform size and having their pivotal centersarranged in an arc in the manner described, and the sub-levers 17 being of a uniform size and pivoted in an arc in the manner shown, as well as the sub-levers 23,

which are likewise all of a uniform size, the

construction is such that a uniform dip of the, keys and a uniform leverage is afforded throughout the system, except for the variation in the lengths of the'key levers for the different banks 'of keys. In order to compensate for this variation in the length of the key levers, a slight variation is made in' the pointof connection 87 between the angular sub-levers some the links 38. This is illustrated diagrammatically in Fi 2 from which it will e seen that the difi rent angular sub-levers are apertured'at 37" at four ifterent points and at four different distances from the fulcrum 31 of the sub-levers in order to compensate for the different lengths of the key levers 40' and thus atford a uniform leverage and dip throughout the system. I 'InlFig. 5 I have shown a modified form ofoonstruction 'embodyin my invention. In this view the same re erence numerals will be employed to designate parts which receding views; the ex onent 0, however, being added toeach of t e reference numerals in the modified form of the construction. It will be understood that the type bars, the pull links connected therewith, the sub-levers to which the pull links are connected and the cooperating sub-levers, are all arranged and constructed, in substai'ltially the same-manner as n the construction previously described. In the modified form of the construction,' however, contractile restorin sprmgs'eei areconnected at their forwar and 'aft of thetmachinex'lnasmuch as the lower ends of the sub-levers 23, are arscri d construction, the upright arms of .the different an iug lengths so I which conn'ect with the type. bars at the sides of the system have u standing arms which reach to a height -w 'e're direct fore and aft'connection can be made through the associated pull'link 28" with-.the sub-lever -23? of the companiontype bar. Although the upright armsof the-difi'erent angular levers 46 vary in length a uniform leverage and extent of key ,de ressionis nevertheless afforded. This is e ected.by.maintaining 30 the ratio between thetwmarmsof the angular levers, 46 whatever be'the size 'of the lar levers 46 are of waylever. Thus, those levers which have thelongest upright lever arm likewise have the longest forwardly rejecting lever arm, and

the ratio between t e two lever 'arm'sof the largest lever 46 and'the sinallest lever 56 isthe same. The levers 46 are key carrying levers, each having its forwardly-extending arm projecting to. the keyboard of the ma-' chinawhere pivotal connection is made at oswithake stem 58 carryi head 54. "she various key on are ded in ide openings in aplate a. Itwill be un erstood. therefore that in this. modified is form of construction, like-that.-

described, a u keys and sun 7 throughout the system and that orm .e1t'ent' 01 pot the gfiadual acceleration inthe-niovernent of ac type bar is'etlected as it' approaches'the printing position.- For the purpose ofthe, present invention itlmay be assumed'that the ty e ban segment '6'. is mounted -,for vertica .case shifting lnovement; the links ,15 at such 5 times turning-on the pivotal connections of said links with the sub-levers 17'. If de-' sired, however, the platen'mayreceive a case shifting movement; relativelyto the type bars. I

so n 6-1 have illustrated a, still furthat m i which the aarts correspondiu to those included in t e neviously described constructions will be esi nated by the same refer- 85 once numerals wit the addition thereto of,

'ranggd in an are as in'the previously de-' at those angular" levers 48 tion.

. hag-arms of t a fin'ger lie or" system so that an angular lever with-a .long,

rm leverage is providedvention. -Int 18 figure parts corresponding lied form of the construction in arranged upwar y and rearwardl .strikin a laten 4.

the exponent b. In this modified form of typeaction the segmentally arranged ty e harsh", strike upwardly and rearwardy against the front face of a platen 4". Eac

type bar is connected to e de ending pull link 15 which in turn is pivota ly connected to a forwardly directed arm of a sub-lever 17..pivoted at'18". All of the'suh-levers 17 are of a uniform size and are segmentally and radially arranged like the levers 17 and 17' of the previously described constructions. Each sub-lever 17" has an upright arm provided with a rear curved contact face-.21" which co-acts with a companion sub-lever 23". of the second order. All of thesub-levers '23 are of a uniform size and are s'egmentally and radially arranged as in the previously llescribed constructions. A returnin spring 44" is connected to each of the subevers 23* -to return it and the 35 parts connected therewith to normal posi- A forwardly extendin link 28" is connected at its rear end to t e lower end of each sub-lever 23 and at its forward end v to an upright arm of an angular lever 46*.

hese angular levers are ivoted at 4:7 at various heights and the evers themselves have upwardly extending arms that project to varying heights in 'order to com neate for ,the segmental arrangement of t e pull links28 and to efiecta direct fore and aft pull on such links at the sides, as well as at the centnoi the system. Like the construo-' tion shownin Fi 5 the sub-levers 46 have forwardly 'exten mg arms which are connected to he stems 53 provided with finger key: 54''. he the corres onding levers shown in Fi 5 these angu ar levers'have their inrwar and their upwardly project- 0 same ratio throughout the upri ht arm has a correspondingly lo 'forwe ypro'ecting arm and the ratio between thearms o the smallest-an lar lever and the arms of the largest 'angu ar lever its-M pre saui'e. 'Inthis constructionrlike those viously described an accelerated movement of-the type bar is effected in itsappro'aehto the printing position and an easy start of each type action is afl'orded. Moreovcrthe u construction is-suc'h' as to provide 'a'uniionn dip of the'lteys and a uniform-leverage"- throu bout the system. In ig. 7 I have shown still another modifled form-of t pe' action embodying-my into those'embodied n the constructions-previously described will be' designated the same-reference umeral with the' ad ition thereto oithe e nent (i. The e'ntallyozs type bars'o strike against the front face 0 Each {type bar is'coniiected to a epend1ng link.1 which in turn 'isc0rinectedat itslower and to an angular sub- 80 -ried.

leverjl7.'-- Each sub-lev'er1 7 is pivoted at- 18 ina' vertikrallvfdisposed se ent 20..and is'provided 1 wit Xanhpwar ly "extending arm having a .rear curved" contact face 21 for cooperation with a companion sub-lever. -23lofthe third order, pivoted at its lower' end as at 9.4.- ina 'vertically disposed segment 26. The sub-levers 17 are pivoted in a vertically disposed arc and are arranged in downwardly and outwardly radiating planes, all of the sub-levers 17 being of a uniformsize. The sub-levers 23 are arranged in a like manner and are all of a uniform size.- Each sub-lever 23is connected to a returning spring4 4 so that said sublever and the parts connected therewith will be returned tonormal position. A forwardly extending link 28"is connected to each sub-lever 23 at one end and is connected at its opposite endto an upright arm of an angular key carrying lever 46",,which key carrying levers are constructed and arranged in the same general manner as in the reviously described construction shown in i 6. 1 a

If it be assumed that the type bar segments 6* and 6 in Figs. G'and 7 respectively are to receive a vertical-case shift movement, as in the construction shown in Figs. 1 to 4, it will be necessary to effect a corresponding movement of the co-acting' sub-- levers and the parts by which they-are car- In this event the rear ends of the links 28 or 28 would receive a movement around the forward pivotal connection of said links with the angular key levers 46" and 46 if the segments 6', 6 20",, 20, 26, 26 are shifted vertically, However, the platen in these constructions like those previously described may be shifted relatively to the type bars if desired. The depending linksvlo 15 are radially arranged to.correspond with the radial arrangements of the type bars ,and the sub-levers and the bell cranks l7 and 17.

In each of the constructions shown two series of co-actlng sub-levers are arranged in rear of the type bars, the sub-levers having rolling or variable contact between them to afford variable leverage and an acceleration in the movement of the type bars in their approach to the printing position. In each of the constructions shown the sublevers of each series are of a uniform size and are pivoted in an arc and are radially arranged. In each construction a'pull link is operatively connected to the fingerkey. and is interposed between the finger key and one of the cooperative sub-levcrs, wliereas in each instance the other sub-lever is connected by an associated pull link to the type liar. Moreover, in each construction a uni-- form leverage and dip of the keys is provided throughout'thc system. I

From the foregoing description and from an inspection of the difi'erent modifications of my invention itwill be understood that various changes ma be made without departing from the spirit and scope of the invention.'

What I claim as new and desire to secure by Letters Patent, is

v 1. In a typewriting machine, the combination of a series of pivoted type bars; a series of finger keys; and intermediate actus ating connections between the finger keys and type bars for swinging the type bars on their pivots to the printing-position, said connections comprising two series of cooperative, sub-levers having variable contact between them, the pivotal centers of the sub-levers ofeach-series'being arranged in an arc.

2. In a typewriting machine, the combination of a series of pivoted type bars; aseries of finger keys; and intermediate actuating connections between. the finger keys and type bars. for swinging the type bars on their pivots to the printing position, said connections comprising two series of cooperative sub-levers having variable contact between them, the pivotal centers of the sub levers of each series being arranged in an are, links intermediate one series of said sub-levers and the type bars, and links in- -termediate the other series of said sub-levers and-the finger keys.

3. In a typewritingmachine, the combination of a series of pivoted type bars; a

series of finger keys; and intermediate-actu- Jim) ating-connections between the finger keys and type bars for swinging the type bars on their pivots to the printing position, said connections comprising two series of (206perative sub-levers having variable contact between them, the' pivotal centers of the sub-levers of each seriesbeing arranged 'in an arc, the sub-levers of one series being fulerumed intermediate their ends, and the sub-levers'of the other series being fulcrumed each at one end.

In a bypewritin machine, the combination of a series 0 pivoted type bars; a series of finger keys; and intermediate actuating connections between-the finger keys and type bars for swinging the type bars on their pivots to the printing position, said lit connections comprising two series of'cotip- .erative sub-levers having variable contact between them, the pivotal centers of the sub-levers of each series being arranged in an arc,'and the sub-levers of each series bering of uniform length.

5 In -a typewriting machine. the combination of a series of pivoted type bars; a series of finger keys; and intermediate actunting connections between the finger keys and type bars for swinging the type bars on their p vots to the printing position, said connections comprising two series of c0iip-' erative sub-levers having variable contact between them, the pivotal centers of the subdevers of each series being arranged in an arc, and the sub-levers of each series being of uniform length, links intermediate one series of said sub-levers and the type bars, and links intermediate the other serf s of said sub-levers and the finger keys.

6. In front strike typewriting machine, the combination of a series of type bars pivoted in an arc to swing upwardly and rearwardly to the printing point; finger thesub-levers of the other series being each fulcrumed at one end, the sub-levers of each series being of uniform size.

11. In a front-strike typewriting machine, the combination of a series of type bars pivoted in an arc to swing upwardly and rearwardly to the printing point; linger keys; and intermediate actuating connections between the finger keys and type bars, said connections comprising two series of cooperative sub-levers arranged in downwardly and outwardly radiating planes and keys; and intermediate actuating connec 's pivoted in arcs, said sub-levers having varitions between the finger keys and type bars,

' said connections comprising two'series of radially disposed cotiperative sub-levers having variable contact between them.

7. In a front strike typewriting machine, the combination of a series of type bars pivoted in ansrc to swing upwardly and rearwardly to the :printing point; finger keys; and intermediate actuating connections between the finger keys and type bars, said connections comprising two series of radially disposed cooperative sub-levers having variable contact between them, the sublevers of each series being of a uniform size, operative connections between the sublevers of one series and the type bars, and operative connections between the sub-levers of the other series and the finger keys.

8. In a front strike type-writingmachine the combination or" a series of t e bars pivoted in an arc to swing upwai' dly and rearwardly to the printing point; fingerkeys; and intermediate actuating connections between the finger keys and type bars, said connections comprising two series or" radially disposed coiiperative sub-levers having variable contact between them, the pivotal centers of the sub-levers of each series being arranged in an arc.

9. In a front strike typewriting machine, the combination of a series of type bars pivoted in an arc to swing upwardly and rearward l-y to the printing point; finger keys; and intermediate actuating connec tions between the finger keys and type bars, said connections comprising two series of cooperative sub-levers having variable contact between them, the sub-levers of each series being pivoted in an arc and the sub lovers of one series being nib-levers of the first order and. the sub lever's of the other series being each fnlcrumed at one end.

10. In a front strike typcwriting machine, the combination of a series of type bars pivoted in an arc to swing upwardly and rearwardly to the printing point; finger keys; and intermediate actuating connections between the finger keys and type bars,

. said connections comprising two series of tcobperative sub-levers having variable contact between them, the sub-levers of one series being sub-levers of the first order and able contact between them, the sub-levers of each series being of uniform size, and the sub-levers of one series being sub-levers of the first order and the sub-levers of the other series being each fulcrumed atone end.

12. In a front strike typewriting machine, the combination of a series of type bars pivoted in an arc to swing upwardly and rearwardly to the printing point; finger keys; and intermediate actuating connections between the finger keys and type bars, said connections comprising two series of radially disposed coiiperative sub-levers having variable contact between them, the sub-levers of each series being of uniform size, and the subdevers of one series being sub-levers of the first order and the sub-levers of the other series being each fut "crumed at one end, and the pivotal centers of the sub-levers of, each series being arranged in an arc.

13. In a front strike typewriting machine, .the combination 01": a series of type bars pivoted in an arc to swing upwardly and rearwardly to the printing point; finger keys; and intermediate actuating CO111'l8C-' tionsbetween the finger keys and type bars, said connections comprising two as segmentally arranged radially di pose cobperative sub-levers having variable contact between them, the sub-levers of each levers of one series'being sub-levers of the first order and the sub-levers of the other series being eachfulcrumed at one end, and the pivotal centers of the sub-levers of each series being arranged in an arc, links intergniediate one series of the sub-levers and the type bars, and links intermediate the other series of sub-levers and the key levers.

14;. In a front strike typewriting machine, the combination of a series of type bars pivoted in ansarc to swing upwardly and rearwardly to the printing point; linger keys; and intermediate actuating connections between the finger keys and type bars. said connections comprising two series of radially disposed cooperative sub-levers having variable contact between them and arranged in the rear of the type bars, substantially horizontally disposed links extending series being ofuniform size, and the sub vfroinone series of sub-levers to the type to the t bars, and operative connections between the sub-levers ot' the other series and the finger he s. i5. In a front strike typewriting machine, the combination'of a series of type bars pivoted in an arc to rearwardly to the printing point;

keys; and intermediate actuating connecand type bans,

tions between the finger keys said connections comprisingtwo series of cooperative sub-levers having variable contact between them and arranged in. the rear of the type bars, the pivotal centers of the sub-levers of each series being arranged in an arc, substantially horizontally disposed links extending from one series of sub-levers pe bars, and operative connections between the sub-levers of the other series and the finger keys.

16. In a Iront strike typewriting machine, the combination of a series of type bars pivoted in an arc to swing upwardly and rearwardly to the printing point; finger keys; and intermediate actuating connections between the finger keys and type bars, said connections comprising two series of cooperative sub-levers arranged in downwardly and outwardl Y radiating planes, said sub-levers havingvariable contact between them and arranged in the rear of the type bars, the upper ends or" the sub-levers of one of said series being arranged in an are which corresponds substantially to the arc in which the type bars are pivpt ed, a series of substantially horizontally/ disposed links intermediate said ends 0 the sub-levers which are arranged in an m and said type bars, and operative con tections between series-otsub-levers and the finger 17. In a tI ont strike typew'riting the combination of a series of type bars pivoted in an arc to swing upwardly and rearwardly to the printing point; finger keys; and intermediate actuating connections between the finger keys and type bars said connect-ions comprising .two series 0 cooperative sub-levers arranged in down- Wardly and outwardly radiating planes, said sub-levers having variable contact between them and arranged in the rear of the type bars, the sub-levers of each series being of uniform size and the up r ends of the subleve'rs of one of said series being arranged in an are which corresponds substantially to the arc in which the type bars are ivoted, a series of substantially horizontally disposed links intermediate said ends of the sub-levers which are arranged in an arc and said type bars, and operative connections bekeys.

tween the other series of sub-levers and the finger keys.

18. In a front strike typewriting machine, the combination of a series of ty e bars pivoted in an arc to swing upward y and rearwardly to the printing point and mounted swing upwardly and amass? for case shifting movement; and intermediate actuating connections between said finger keys and type bars, said connections comprising a series of sub-levers of the first order, and a second series of sublevers each fulcrumed at one endand cooperative with and having a variable contact on a sub-lever of the first mentioned series. 7

19. In a front strike typewriting machine, the combination of a series of type bars pivoted in an arc to swing upwardly and rearwardly to the printing point andmounted for case shifting movement; finger keys; and intermediate actuatingconnections between said finger keys and type'bars, said connections comprising a series ofsub-levers finger keys;

of the first order a second series of sub levers each fulcrumed at one end and cooperative with and having a variable contact on a sub-lever of the first mentioned series, the sub-levers. of both series ming arranged in the rear of the typebars and the sub-levers of each series being of u'nitorm size.

the other machine,

20. In a front strike typewriting machine, the comb nation'of a series of type bars pivoted n an are swing rearwar ly to the printing and intemnediate actuating connectionsbetween said finger keys and type bars, said connect-ions comprising a series of radially arranged sub-levers of the first order, 0nd series of radially arranged sub-levcrs each fulcrumed at one end and cooperative with and having a variable contact on a sub-lever of the first mentioned series, the sub-levers of both series being arranged in the rear of the type bars,- 1 2-1. In a front striketypewriting machine, the combination of a series of type bars pivoted in an arc to swingupwardly and rearwardly to point and mountupwardly and point andmouni; ed for case shifting movement; finger keys ed for case shifting movement; finger keys;

and intermediate actuating connections between said finger keys and type bars, said connections comprising a series of radially arranged sub-levers of the first order, a second series of radially arranged sub-levers each fulcrumed at one end and cooperative with and having a variable contact on the sub-levers of thefirst mentioned series, the sub-levers of both series being'arranged in the rear of the type bars and the sub-levers of each series having their fulcrums arranged in an arc.

22. In a front strike typewritingmachine, the combination of a series of typebars pivoted in an arc to swing upwardly and rear-' ardly to the printing point and mounted for case shifting movement; finger keys; and intermediate actuating connections be tween said finger keys and type bars, said connections comprising a series of sub-levers of the first order situated in the -rear of the type bars and arranged and t outwardly radiatingglanes 'and havin wardly to the printing point and mounted for case shifting movement; finger keys; and intermediate actuating connections etween said finger keys and type. bars, said connections comprising a seriesof sub-levers of the first order situated in the' rear of the type bars and arranged in downwardly and outwardly radiating" planes and having their upper ends arranged in an are which corresponds substantially to the arc in which the type bars are pivoted, said sub-leversbeing .of a uniform size, substantially horizontally disposed links extending from the upper ends of said sub-levers to the type bars, a second series of radially arranged sub-levers each fulcrnmcd at one end and situated 'in'the rear of the ty )8 bars and cooperative with one of said rst mentioned sub-le versibya variable contact therewith, said sub-levers of the second series likewise being of uniform size, the pivotal centers of the sub-levers of both series being arranged in an arc, and links intermediate the finger keys and the sub-levers of the secondsenes.

24. In a front strike typewriting machine, the combination of a series of ty e .bars pivoted in an arc to swing-upwardly and rearwardly to the printing point; key levcrs; and intermediate actuatingconnections between said typ'e 'bars and key levers, said connections comprisin two series-of coiipcrative sub-levers havin a variable contact between them, said su -le\'crS being arranged in the l'ear'flf the type bars, a third series of sub-levers which are angular in form, operative connect ions between the key levers and angular sub-levers and between one .ofthe series of first mentioned sublevers and type bars. v

. 25; In a front strike typewriting machine, the-combination of a series of W e bars pivoted in an are-to swing upwar ly and rearwardly'to the printing point; key levers and intermediate actuating connections vbetween-said type bars'andkey levers, said connections comprising two series of coopferati,ve sub-levers havinga variable contact betweenthem, said sub-levers being arranged in the rear. of the typebars, a third series of sub-levers which are angular in form, links intermediate the key levers and angular-sub-levers,' links between the angular sub-levers and one of the first mentioned series of sub-levcrs,- and links between' the other series of first mentioned sub-levers and the type bars.

26. In afront strike typewriting machine,

the combination of a series of-ty e bars piioted in an arc to swing upwardly and rearwardly to the printing mint, a series of finger keys, and intermediate actuating connections between the finger keys and ipe bars, said connections for each type ar comprising two sub-levers arranged edge to edge and having a rocking'actlon one on the other, the construction 'and 'arrangement of the parts being such that a uniform leverage is ail'orded throughout the system and such that the type bars are gradually accelerated 1n their swinging movement fromnormal to printing position. '27. In a typewriting nu clnne, the combination of a series of p oted type bars; a

series of finger keys; and intermediate actuating connections between the finger keys and'typ'e bars for swinging the type bars on their pivots to the-printing position, said connections comprisingftwo series of sublevers radially arranged in upright arcs, the levers of one series working edge to edge with the lovers of the other series.

Si 'ned at the borough of lilanhuttnn, city of Low York, in the county of New York and State of New .York this 12th day of July A. l). 1911.

JACOB FELBEL. Witnesses:

1'). M. \Vnnns, CHARLES E. Snrr'n.

Copies of this patent may be obtained vfor five cent: each, by addressing the Commissioner 0! ratentli Washington, D. C."

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