US1178190A - Type-writing machine. - Google Patents

Description

B. C. STICKNEY. SHPE wRmNs MACHINE.

` APPLICATNFILED ULYZ, 1914. I 1,178,190. Patented Apr. 4, 19.16.

2 SHEETS-SHEET l.

BLAU/f; LK/t7? CASE WITN ESSES:

am www INVENTORl B. C. STICKNEY.

TYPE WRITING MACHINE.

APPLICATIUN FILED JULY 21 '9M' Patented Apr. 4,1916.

il; concewil Y p Be it known that I, BURNHAM Savignnnr, aicitizen'of theUnite'd States, residing 56Std ew- Jersey, have ,invented cer-` t'airn ewpanduseful linprovementsin Typey,ing Machines, of vwhich the'l following isa specification.` v. t. V p

. invention relaties to ribbon-vibrating ,ism/for typewriting machines, and rly-to means forv bringing either strnpN or, colonof a ybichrome ribbon, into.

'usent Willfpiietteetng siich shift.

rediice or eliminate the liability of the ribbon torgto overthrow when the; type keys i aregnapidly operated.' vTo this end, I con# 250.(,iiect the usual ribbon-vibratingvlever tol its i @tor means of a- .link and lever,

@tu which swing to or near ydead-center when thepribbonisin,printing position; `the link an nlevenhenc'e servingas 'a lock tol-prei iejfmomentnIn; oi' the. ribbon vibrator thewtypesto strike partly i'ipon the other stripe,i y or to bleed.

' iferlent colorsintouse at will, I provideza 351 conti llingdevice,:preferably inthe form 'o'f arm '.upon which are pivotedfboth sai 4bison-vibrating.lever and-also 'the devicef., which -it'is operated. ,.-Saidc0ntrol linggarm isirnounted to swing upwardly, ithandmearry ,-up said `ribbon-vibrating lever Aand the ribbon carrier itself, together with thefigibbon, when' itris desiredt'o bring l'the redr'stripe idedlin i slotted yoke being fixed upon the cally erro Y 'rYPE-wnrrme ivieQHiNngf Specicatio'npf Letters Patent...`

abetli, inf I thel county of yUnion and. g

l forthis purpose.

different i,

Yention is to provide improved means y y f y being the one commonly employed in type- Anotherobject of my improvementszis tol ari-yingiit too far, which would cause',

For bringing the pf the ribbon ,int-o', use.v The Vi-` "bragtinginotion, of the rbbon is iderived ;frorimthe key-,operated universalbar,usually im" 1' the Uiifdervvoodtypewriter.,-ak

sal-bar frame' toengage a ribbon-vie. wrist which` proiectsfrom awlever"v '.sricKNEY, ,0F ELIZABETH; i AssIGfNon; To NDERWOOD V'rriikmriri jsRcoMPANr .or Nnwyoax; N.V Y.,iir .conronar1onor DELAWARE,}ny f i and down as the ribbon mechanism is shiftl,ed `up vandvdown to bring different stripes `v1iit o ilse.r All of the above-mentioned mechanism, -(except they slotted actuator)` is n y Patented Apr.' 4, `1916; Application niet July 21', 1914.v serial No. 852,141.

mounted on the rocking frame which i'ntle l Underwood typewriter shifts the platen lip and downto enable the different types to print; andthe yslot in thev above-mentioned r actuator 'accommodates this caseshiting movement.' When the ribbon `is shifted up to enable the lowery or redistripe" 0n the rib-A bon tobecom'e effective, the toggle may not itself operate to arrest the yribbon vibrator;

but a separate fixed stop maybe provided.,

Another obJectfof the invention is to ei .feet soinereduction in thelength of stroke of the ribbon' vibrator when the upper color stripe (usually black) isin" use, this stripe 'Wi 'itin,fg;.vk The relation -ofgsaid levers, and said. connecting link, and said controlling arm to lthe slotted vactuator is such that when theY parts are in blaclewriting posi.

tion, the stroke of the ribbon-vibrating lever maybe less thanl when the vparts are in position to-write red.v

Another object of the invention is to pro vide ample means for preventing the ribbon froni'covering the printingfpoint at type strokes when it is desired to'write stencils.

In carrying out this feature, the ribbon is slnftedbodily down soffar that, although the ribbon-vibrating mechanism operates at every type stroke,'it does not carry the ribbon up. far enough to cover the printing` point and thel length of stroke of the ribbon Vvibrator may be even less than when the black stripe is in use, so that, when writing stencils, the vibration of the ribbon at ythe kev strokes willnot be objectionable. vThis shifting of the ribbon' to ineliective position is preferably ei'ecteelI 'bv a sep arate `innenpiece from those which control f 'the' shiftingof the ribbon from vblack to red.v

Other :features and; advantages will here- 'finafter appear.

Fig. 3, but showing theribbon-vibrating mechanism as shifted oi switched down to typewriting machine, wlth the present im` provements applied thereto. AtFigs. 1, 2 and 3 the platen-shifting mechanism of the typewriting machine is in position fori Fig. 4-

writing lower-case or small letters. is a view similar to Fig-(2, but showing the device set tor bringingr the red stripe into use; the machine being understood to be in lower-case position. Fig. 5 is a front per spectire view of the ribbon-vibrating mechanism and part of the Vplatenshitting mechanism; the parts being in normal positions, the ribbon mechanism being set for bringing into use the top or black stripe, and the mechanism being set for lowercase. Fig. 6,

is a

rtional. side elevation showing the parts Vin the same position as at Fig. 5,but with the type in priliting position and the ribbon rihrator carried up to interpose the ribbon between the type and the platen. Fig. T is a view similar to Fig. el, but showing the mechanism shifted to cause the ribbon to print black. or to bring the upper stripe into use. lfig. S is similar to Fig. 6, but showing the platen shifted to upper-case position: the ribbon mechanism being set for writing black. and being in printing pi'isiticn. Fig. E) is similar to Fig. (i, but showing the mechanism shifted to bring into use the red or lower stripe of the rib bon: the parts being in normal position. and the plateirshifting mechanism in lowercase position. Fig. l() is similar to Fig. Si, but showing the type in printing" position and the ribbon thrust up to interposc the red or lower stripe between the type and the platen. Fig. 11 is similar to Fig. 10. but showing the platen shifted up to capital position.

The keys 1 are connected to levers and bell-cranks 3 to swing typebars 4 to strike. rearwarrlly against a platen 5. which is mounted on a platen frame (i. the latter shiftahle up and down on a carriage T, which travels on rails S. The shifting is effected by a special kev il, which is mounted upon a bell crank lever 10. the latter engaging au arm '1l of a shift frame l2, which is fulerumed at 13 on the framework' 14 of the tvpewriter and comprises brackets or arm 1H. united at their front ends by a shift rail 1T, upon which runs a roll 13, mounted on. the platen frame f5. The carriage is driven by the usual spring barrel, not

shown, and has a rack 19 in mesh with a pinion 20, which drives an escapement wheel 21, the latter controlled by dogs 22, which in turn are operated by a frame 23, having on its forward edge a universal bar 24, operated b v the heels 25 on the type-bars, and mounted at its rear end on rock arms 26, whereby, at every printing stroke of a typebar, said universal bar is pressed backwardly, and the carriage is caused to feed; the universal bar being returned by the usual spring 27.

The universal-bar frame is employed to vibrate'the ribbon up and down to cover the printing point at the type strokes. 'For this purpose, there is erected upon the universal bar a yoke 28, which of course moves backwardly with the universal bar during the printing stroke of the type and returns to normal position as the type swings downwardly. This yoke 28is provided with aver-tical slot `2S), in which plays a wrist 30, whereby the vibratory movements of the inking ribbon are produced. This wrist projects from an arm 31, extending upwardly from a pivot 32; and said arm 31, taken with arm 33, forms a level', which by means of the wrist 30 is vibrated at the printing strokes of the type-bars. A link 34 extends from 33 to the lever and lifts the same to elevate the ribbon-carrier 36 to interpose the ribbon between the type and the platen; the lever and the carrier 36 being loosely jointed by means of pin 37 and slot 37, as shown.

The ribbon may comprise 33, usually black, and a `lower stripe 39, usually red. As shown at Fig. 3, when the upper or black stripe is in use, the ribbon stands a little below the printing line on the platen; but not quite so far as illustrated in said Joerrisen'and Livingston patent, S0 that the stroke of the ribbon when writing black. (which is in use nearly all `the time) is somewhat shortened. and hence the speed of operation of the ribhon-vibrating parts is reduced, thus lessening the wear thereon and also reducing or eliminating the liaan upper stripe bility of overthrow of the ribbon due to.

weakness and springiness of the parts and looseness of the joints.

The operation of the parts so far described will be apparent, the type kev 1 depressing the lever 2 and rocking the bell crank 3 to swing up the type-bar 4; the heel on the latter striking the universal bar 24 and pressing the same backward. together with the ribbon-actuating yoke 28, which. by means of the wrist 30. vibrates the lever 31. 33 to thrust the link 34 forwardly, and thereby swing up the lever 35, together with the carrier, 36, to bring the upper or black stripe 38 over the printing point, as at Fig. 6. At the instant that the imprint is being made, it will be seen that the arm 33 forms with the link 34 a 'tem-pol'.

rarily straightened toggle; and it will be understood that lthey ribbonv Vibrator has hence 'been brought slowly tofrest, and alsov that the lever is powerless to vibratethel lever 33 `ybeyond the Fig. 6 position, owing to, to the act`that the 'three toggle, pivots are substantially in a straight line;y and vhence manner.

liability of overthrow of theribbonisf-substantially reduced' or eliminatedix 4Upon re- `.lease of the finger-key, thezft-ype-barfalls kbackfto normal position, and the spring 27 returns the universalv bar,^=t ogether with the ribbon-vibrating mechanism. Thefed of. the 'paper carriage takes place'in ,the usual,l It will be yffurther observed that y said lever- ,31,` 33 is ,mounted by means of its Apivotj32uponvan arm 40,and-f'tliat said ribs bon-vibrating levery35 is pivotedlfat- 41 to the forward end oxftheY Saniearin 40.; the pivot32 beinginrear' ofthevpivot 41, and

, ythe pivot or fulcruni42 being at l the rear end ofthe arm; Thisfarn'i 40 is shifted up 'froni'the Fig. 6 position to the Figf) position when it is desired to use the redstrlipe ci? 'theribbon, and, in shifting up, it'carries` up' bodily" `the lever 35, together' lwith the 4. lower edge a trifle, without however hiding so much ofthe written characters as to ren# der them dilicult to read.v "When aV type key which` has been already described,"tlie1 parts.'

carrier 363' and the ribbon thereon, 'so that the upper edge of the ribbon coincides withk 'the lower edge oftheLline ofimprintson the work-sheet, or possibly overlaps said is "now depressed, the operation takes place moving from the Fig.`9 position `tothe Fig.

` ribbon; but. ifdesired, such overthrow canl be prevented-bv ineansof a' stop lug43 on l() positiont which it will befseenthat ythe red -or lower stripe covers the printing point when the imprint is made. At this time,4

the toggle arms 3334are not in line, and do not themselves prevent .overthrow ofthey the lever 35 (Fig. 10)` strikingl 'against'a plate 44, which is fixed upon the platen-shift The movement ofthe "color-'contrwling arm 40 may be 'effected by sliding Cain plate 45,j supported by means of` headed studs 4,6 upon the rear .face of the platen# shiftk rail 17; said studs .passing thrr'mehhorizontal slots '47 in the camgplate or slide,

whercbv'the latter supported and guided.

'In said' camplateis a long diagonal-slot y48, into whichl extendsy a' pin 49'formedfuponr `the tip of the shiftable color-controlling arm, 40, so that, ras'thebam plate or slide is thrust which; is "fixed bv. screws; o2 the l,rear 'face l of' said platenshift rail 'being `confined betive A' endwise, said'pinand arm arejcanimedup and down; The pin`49 may' also be lguided in it `vertical slotv 50,'foi1nedins`aid platel 44,

. (Fig the diagonally[slottedA `ff t supports the pin 49. against lateral displacelsaid vertically slotted plate 44. The slot 50124 v ment while'it is being camined ,upy and ydown y by `means of thediagonalslot 48 in4 said ,l

slidefQBotli the slide 45 4andthe'` plate-44 may lbe curvedfconceiitrically with lIthepivot 42 of the color-'controlling arm 40, ask illvug' ,trated L I The {color-changing movements oiz I the l.

cam-plate or slidev45 are efectedby keys and 53, provided upon a cross arm 54 at the;T front of. the typewriter, said .cross-armi,5

mounted uponthe forward end` of, rock shaftjj. 55, from whose reariend depends a cranln:

slot 58' in, an arm 59, the lattery formed on,A

Vfgezfrtending downwardly Vfrom said. cam'` plate or slide 45. The vertical slots 50 and 58 arev long enoughnto accommodate the'upf and down shifting movements ofthe slide 45 `which occur when the platen-shift rail 17 5 t rises andialls.

The cross arm' can be held plo-, v i A sition to which it is set, by means of a detent` spring 60,'having perforationsl, 62, 63,125;-

engage the" point 'of'. -albgrveled pirr 64;

'upon the cross-arr'r`r54. By pressing either of the-keys 52 or 53, 'the' ribbon mechanisml maybe rset -for bringing into use either the# upperstripeor lower stripe of-"the'ribbon '.95

at the" printing strokes,leither key`52 pr 53` l operatingto rock the'shaftr 5,5, and'by-rneansfl y 'of the crank 56 to yadjust the slide 45 lon'qi'- tudinally of the shift raill17, and'case the cam slot 4'8f `tol` cam tliexpin 49 'upWardly` downwardly,` together .with the colorf on trolling arm j 40, thus carrying upjor'itlo theribbon-vibrating levers 35.

As' is the case in said Joerrisenand'Livthat the rock shaft .42, upon which said arm 40 is fixed. may be journaled at, its ends at i ,65 the side ar1ns'12oftherocking frame,.- of which said shift rail forms a part', Hence ,the color-controllingarm 40 is swungvbodily up-anddown about the axis13 ofthe'casel. r shift frame, simultaneously with the up. and

down movementsof the platenv 5. At' Figafv n 8 the bars are seen` in printing position when writing black vin upper case, andriny Fig.

`. upper vcase position,` the keys52, 53 may be...

bringing either' ebbe? 13 l 'i stripe into use, and also that when the colorcontrolling devices remain set for either color, the platen-shifting mechanism may be manipulated` to shift the platen up and down; the slot 58 in the arm 59 (Fig` 5) permitting these various relations of the parts.

The vertical slot29 in the actuator 52S may be suitably shaped for the purposes herein set forth; as for instance its upper end may be set forwardly a` little, as at 6G, in order to bring the ribbon carrier 36 to the correct normal position when capital letters are being written, and the lower or red stripe of the ribbon is being used. This, or other suitable shape of the slot 29, may be called 4for because the slot itself is not struck on the ribbon vibrating arm 35, which other-V wise might rise too high when the platenshift rail 17 is being raised, with the colorcontrolling arm 40 shifted up to red position, (Fig. 1l).

It will also be noticed, that owing to the fact that the vertical slot 2S) diverges from an arc drawn about the axis 42 as a center,

there is suiiicient shifting of the lever 31, 33 between the Fig. 3 and Fig. 9 positions, to bring the arms 33, 34 well away from the Fig. 3 position, so that the same length of stroke of the arm 33 may impart a greater stroke to the ribbon-vibrating lever 35. The linkage, comprising 33, 34, and 35, is so con strpctcd that uniform movements of the arm 33 hroduce, at Figs. 3 and 6, shorter strokes 0i the ribbpn-vibrating lever 35 than is the case at Figs. 9 and l0. It will be understood, also; that substantially the same results occur when the parts are shifted to upper-case position. Thus, while all the parts always remain connected, there is still a difference in the length of the stroke in favor of the black or upper stripe of the ribbon, which is the one most used. Since no part has to be disconnected from the others, a closer fit of the various working joints can be secured and maintained, thus insuring accuracy of movement of the ribbon, besides givingthe advantage of short strokes for the black stripe, and the further advan tage of preventing overthrow when making such short strokes.

If desired, a stop G7, Fig. 1l, may be fixed upon the machine frame to be engaged by pin 37, for arresting the ribbon-vibrator at the conclusion of its printing stroke, when writing red in the upper-case position. By

point, even though it isis vibrated at the type-strokes.- The cam` slot 49 in the colorcontrolling cam plate ,or slide 45 is made long enough to force down the pin +9 and the colorscontrolling arm 40 into positions seenin Figs. l and 2, in which the ribbon normally stands so far below the printing point, as seen in full lines, that the vihrating lever is unable, at the type-strokes, to carry the ribbon up to cover the printing point; the extreme upper position of the ribbon being seen in dotted lines at Fig. l, just below the printing line on the platen. At this time also, the length of stroke ofthe ribbon-vibrating lever 35 is somewhat further reduced; the niovements of the parts 33, 34 being principally in the vicinity of the straight-line dead position in which the arm 35 is moved but very little during the usual strokes of the lever 31, 3?. l

The color-controlling cam plate or slide 45 may, if desired, be shifted over to the Fig. 2 position by means of the rock-shaft 55 and crank 5G. However, I prefer to em ploy a` separate finger-piece .fiS (Fig. 7) for shifting the ribbon mechanisi'n to the position at Figs. l and 2. This fingcnpiecc G8 is formed upon a` slide (if), which is carried upon headed studs T0 fastened in the frame of the machine; the slide having horizontal 'Slots 71 to support it and guide it upon said studs. Provided upon the inner end oi the slide G9 is a rest or abutment 72 which is engaged by the pin (il, before mentioned. lVhen the slide G9 in normal position, Fig. 7, the rest or abutment 72 serves as a. stop to be engaged by pin (34 to arrest the cross arm 54 when the color key 52 is depressed, as at Fig. 7. When it is desired to write av stencil, the operator presses the tinger-piece (38 to the right, thus withdrawing the abutment 72, to -perinit further movement counter-clockwise of the cross-arm 54, with its rock-shaft 55 and the crank 5G thereon, this movement being effected by an abutment or edge 74, which now engages a. pin 75 on an arm 7G extending down from the forward part of said rock-shaft 55 (Fig. 3), and swings the rock-shaft to the extreme position of Fig. 2, thus carrying the colorcontrolling cam plate or slide 45 to its extreme right-hand position. The spring detent 60 holds the rockshaft 55 in this position, and preferably the slide 69 is also provided i-.with a ldetent 'lifto enter notches 7S and 79`in said slide. After writy advantage -of locking ,35 against .the over- -v lever is oscil'lated to vibrate the ribbon be-I tween a noi-mal position of rest and an operative, position, of -a' 'controlling ldevice4 or ,claiin:

l. In ribbon mechanism Jfor .use with 'aingfthe stencil, the operator niaympress the n'gerlpiece 68 to theleit, o'r .he may depress the key 53 tobring the parts back to norinal positions; the detent 77 assisting to coii'i'plete n thereturn of theslide G9.

It will be observed that` in iiioviiig ronif4 the positionv at Fig. 9to -the position at Fig. 10, the lever arn'ieiiectsa longy throw of ribbon vibrating arni .35, becausethe link 34 is about at rightanglesto the lever ai-111.33. In swinging the'color-controlling ai-ind() down roin the Fig. 9 position to the Fig. 3 position, the lever-arm 33 is swungiorwardly to bring 33 and 3l nearer afstiaiglit line position, as at Fig.'3. Owing `to thisA relation of tl'ielink 34' and arin, at 3,

the vibration of arm-.33 at-they printingstroke will effect lessv vibrationof kthan is vthe case when the; parts move froin the Fig. 9 norinalposition to'theffFig.l 10 printing position. In other words, 'theprintingstroke for black inay be shorter than the.

printing-stroke 'for red, besides having .the

throw as at Fig. G. The describedn'iovement of vthe arin 33'in dropping.froin'the Fig. 9 position' to the Fig. *positio'nis caused by the slotf29. This slotinay be straight throughout itslength andlincline upwardly and forwardly, as at Fig-1, in stead of beingvertical and yterniinating"at its end in a crook as inthe other2 figures. The incline of the slot. at Figglf presents an advantage, because it reduces Ithe throw yof ribbon vibrator '3G when the' parts are shifted up around pivot 13 at the case shifting operation, and hence tends toinake the lift of the ribbon no greater than -the liftof the platengftlie inclination of"thefsloti tending to turn the lever 31, 33 counter-H clockwise on its own pivot 32 during the up# ward platen shift, thereby tending tojdraw:4

down the. lever 35 about itsown pivotelfw i \f ariations may be-resortedto' within the scopeof theinvention, and. portions o'f: the

iniprovenients may be used without "otliielrsp .Having .thus`l described fniy iinventionyl ribbon comprising different color stripes, the

coin bination with aY "ribbon carrier,` a' ribboni" vibrating lever and adevice comprising a link and lever by which'the ribbon-vibrating arin upon which .are p'i'voted ,saidE levers,

said controlling arn'i vmounted 'toswiiig up-f wardly, and cai-ry up 'said ribl'ionevibrating lever and ribbon carrier, togetlier'ivitli the-i' ribbon, when it is desired to bring the lower stripe of the ribbon into use.

2. In a typewriting machine, the 1 combinationfwith' a key-operatedfiini n y and.. lii1a`-r ne.- of a vertically. slotte( .upon said universal barA traine," vibrating lever, ,a lever having fjecting therefrom 'into the slotin said'.

` actuator V'to the said iibbon-vibrating 'le ribbo-nihaving upper and lower color stripes',

yribbon andfa ribbon-vibrating.leverfof lan actuator, a connection between said actuator g vristdfjr jecting therefroin'into the slotf'in said ybke,

. o 'i0 anda link connecting said last-naiiiedilever toI the ribbon-vibrating'- lever, 'saidfg slot in thefyokek permitting the wris'tftoplay up, andVQ i drown as the ribbonmechanism'isshifted fup and `down into use. .y

to bringdilfeil'ent jle'ol'o'r, st pes 75A 3. In atypewritiiig inachiiie the )coinbiand fraine, ofv avertically,slottedyokexed )ons'aid universal bar frame, aj ril J bratinglever, a `lever having a. w-iistvpi'oa link connecting saidlf li'istnained" lev the ribbon-vibrating lever, said `fs'lot 'in' the yoke permitting -the wrist to ",play-iipan'cl '8 5 down 'as4 the' ribbon nieclianisiii sliilfted'up and vdown f to bring!y different color'A stripes .into use, a platen, and Va vsliift franje forig shifting the- Yplaten up ,andklown'to .enable different types to print, said leversniounted e()` l,on said frame, and lsz'iidslot in the actuator accommodatingthe 'mise-shifting inovi'nent.

' 4. InI Iribbon ine'chanisni vforfujseiv'ritl'i .03 ribbon' l havingr different c'olofr` stripes," ,the combination withay ribbon lcairier anda 95 ribb'onvibrating 1e`vr,.ffof an `l actuator for Asaid lever, al' link and lever. connectin" the'ribbon-,vibratinglei eigandxribbon.- Carrier sliiftable up and downto bring'either 'color 100 g stri pe .into operative n position, and niean's. to

f vibrating .le'v'eig when vthe 'parts' arr zin, position to biing'tlie lower? ribbon 4stripe',into operationtlnn when "the upper; stripenis 11C f operative, thus perinittingthe upper ribbon ,stripe tohave a norinalapositibnf close 'tothe printing line sotha't' olnlyiashorthrovvfof 0B the jribbon is required to cause y'said'u' per ribboiig'stri pe to cover Ithe printing-po' 5. AIn 'ribbonineclianisinA for use` the combinationl ,with a-,gcarrierqfor .said 5'* andthe said vibrating ylever lfor causing *the` actuator to ,vibrate the lever 'and tliifoiv the ribbon "over the printing `p ")int',` l,said ,lever shiftabl'e bodilyy up and down to 4bring either thev upperior- `lower ribbon 'stripe 4intoA active position, said connection being inodifegdgduring the said shifting 'of .th vibratingleVer to cause the actuator to eifect'awider amplitude'of vibration of the said lever when thelatter hasV been shiftedto bring the lower 130 ribbon stripe into activity than when the upper stripe is active, whereby the normal position of the ribbon may be a comparatively short distance below. the printing line, and a shorter vibration of the ribbon for both the color stripes is provided than would be required if the vibrations of the ribbon were equal for the active positions of both color stripes.

6. In ribbon mechanism for use with a ribbon having. different color stripes, the combination with a ribbon carrier and a ribbon-vibrating lever, of an actuator therefor, anda link and lever connecting the actuator to said ribbon-vibrating lever, said link and lever arranged to swing to or near the dead center' when one color stripe is in printing position, said ribbon-vibrating lever shiftable bodily to bring the other color stripe in\to position to be vibrated by said actuator to printing position, the relation of said link and lever to the ribbonvibrating lever and actuator being changed when said other color stripe is active to increase the throw of the ribbon.

7. In a ribbon mechanism for use with a ribbon having different color stripes, the

combination with a ribbon carrier and a center when one color stripe is in printing position, said ribbon-vibrating lever shiftable bodily to bring the other color stripe into position to be vibrated by said actuator to printing position, the relation of said link and lever to the ribbon-vibrating lever and actuator being changed when said other co'lor stripe is active to increase the throw of the ribbon, and a stop lto limit the throw of the ribbon-vibrating lever when shifted to said last-mentioned position, said link and lever when in the dead center position serving as a lock to prevent the momentum of the ribbon-vibrator from carrying the ribbon too far, While said first-mentioned color is active.

8. In a typcwriting machine, the combination with a key-operated universal bar, of a i ribbon-vibrating lever, a ribbon carrier vibrated by said lever, operating connections between the universal bar and said lever, arranged to gradually slow down the movement of the said lever relative to that of the universal bar during the operating stroke of said bar, whereby `the ribbon is gradually brought to rest over the printing point and -overthrow of the ribbon prevented, said connections between the universal bar and the` ribbon-vibrating lever comprising a lever actuated by the universal bar, a link connecting said last-mentioned lever with the said ribbon-vibrating lever, said link being brought substantially into line with the arm of said second-mentioned lever to which it is piveted, as the ribbon-vibrating lever completes its forward throw, and means to shift the ribbon carrier and ribbon-vibrating lever bodily relatively to the second-mentioned le ver, and thereby cause a different portion of the ribbon to be brought over the. printing' point.4 Y

9. In ribbon mechanism for use with a ribbon having upper and lower color stripes, the combination with a ribbon carrier, of al ribbon-vibrating lever, an actuator by which said lever is operated, a controlling device or arm upon which is pivoted said ribbonvibrating lever, said controlling arm mounted to swing upwardly and carry up the ribbon-vibrating lever when it`is desired to bring the lower stripe of the ribbon into use. and means to change the relation of said actuator and ribbon-vibrating lever during the shifting of said arm whereby a greater throw of the ribbon is e'ected when said arm is in position to bring the lower stripe of the ribbon into use.

10. In a. typewriting machine, the combination with a key-operated universal bar, of a slotted yoke on said bar, a ribbon-vibrating lever, a link and lever connected l thereto, a platen shifting frame, and an arm mounted to swing on said frame, said levers pivoted on said arm to swing therewith and ring either color stripe of a bichrome ribbon to active position, said second-mentioned lever having a wrist to engage with the slot in said-yoke, said slot operating when said arm is swung to change the relation of said levers and therebyfvarv the extent of the throw of the ribbon by the vibrating lever.

11. In a typewriting machine, the conibination with a ribbon-vibrator for vibrating a ribbon over the printing point, oi akey-operated actuator to actuate said vibrator, and means for shifting said vibrator and thereby carrying the ribbon to such position that the vibration of the ribbon-vibrator by the actuator will not move the ribbon to position to cover the printing point.

12. In a typewriting machine, the combination with a ribbon-vibrating lever, of a key-'operated actuator connected to such lever to vibrate the latter and carry the ribbon over the printing point when the keys are actuated, means forming a driving connection between said actuator and lever, means to shift the lever downwardly without interrupting said rconnection to such position that the vibration of the lever will not carry the ribbon up to the printingpoint.

13. In a typewriting machine, the combination with a key-operated universal bar, of a ribbon vibrator, a driving connection betwem the universal bar and said vibrator ,3 i tt l 1,178,190

Kw. "'4 --."fi--'l?f., Y ,@.for vibrating hei-latter to vibrate the,y ribbon `over the printingpoint,=1faiid,a devicei for i shifting@ the; vibrator downwardly" and .si- ,i fr y multaiieous'ly- ,shifting lsaid driving i-coniiecn 5rtionitoibause they ribbon'ivibra'torto have a felici-ten fith'aoiw when f actuated lby ythe unix-'versalfbar-,fand thereby prevent thev ribbon 'from'ibeng vibrated` over the,v printing point.

pointed-sopa?, i, w in saidfi-intermedia oppositie to ribbon Ltoibeyvibra'tedf without lie printing point.. l

In ypei 'iting machine, the combination with. bonviljratinginechanismfor :low l' usel'with a', ribbon having'v lupper, andlower coloi'bands,said inlechanism coniprisi'i'ig a,

eoveriiigI .a typewritin-g machine,the,A eombia s nations wgitlif'a .ribbon :vibratorgof an actufatori'idniiected'to operate, the .vibrator and y moverwwribboii to printingposition, vand and operable'wheii shifted upward] fmeansifr-for shifting said vibrator and conycoinitaiitly modifyingr said connection to reduce the amplitude of vibration'of said vibrator and Athereby prevent the actuator fromcausing the ribbon' tov moveto printing position. i

intermediateposition to caus the lower olorvbnd'to'be vibrated over the printing I w15'. 'Ina ty'pewriting machine, the combi- ,ribbon-vibrating llevrya slott`ed actuator, a i glevei-haying a wristshdable in said slot to" permit the leverfto be shifted, a linlgc'o'nffnect'ing,r` said levers,fa'nd a shifting` carrierlon `which said levers are 4mounted, saidflactir ator operableirthrolugh said levers ,when said Shifting device is in anfinterniediate'., tion to vibrate the ribbon land Carr;

upper color bandy over the vprinting pio 'and operable when" shifted 'upwardlyfroiii' said intermediate position to causejfthe;

which said,`

nationwith aribbon carrier and a ribboni lower color yband to bevibrategd' 'overf'tlie ibrating lever to vibrate avribbon'over the Wp'rintin'g point, and voperable when shifted N85' vgrinting point, ofan actuator `forsaidlever, downwardly `from said intermediate posil a v"lever and link connecting saidv actuator ti'on to cause the ribbon to be vibrated with-.1 'with the ribbonvibrating lever, and a carout covering the printing point, said slot rier on which said ievers are mounted, Said formed* to change the'i'elation of the said :carrier being shiftable downwardly to carry u levers -aiid linl` when said carrierr is shifted 9o they ribbon to 'such 'position that when vin to the-upper' .position and vthereby increase brated` by said actuator it will not be carthe amplitude of vibration. ofthefi'ibbon, f' riedfover A'thefprintin'g point. and when said,l carrier is shifted down"- -y16.- Inlaftypewritiiig machine, the combivwardly `from the intermediatepositionfto "nation witha ribbon carrier and a ribbondecrease the amplitude of the vibration of 95' vib 'ating lever to vibrate a ribbon over the the' ribbon. f v l printing point, of an actuatorfor said lever, 19.` In a typewriting machine, the combi'- y C a lever and link'connecting said actuatorv nation with a universal bar, of a slotted "with lthe ribbon-vibrating lever, and a cary yoke carried-thereby, a levei-having vawrist j rier on which said levers are mounted, said guided 'in saidl slot, a i'ibboiifvibrating lever, 190I v carrier being shiftable downwardly to carryf a. link' connectingsaid levers, a carrier on i the ribbon to -such position that when yviwhich said levers are pivoted, and means y f biated by said actuator it will not bejcarried for Shi'tingsaid cari-ier up and down.

40 over 4the printing point, said second-men- 20. 'Ina typewriting machine, the combi tioned'llever having' a slot and pin c`onnec-' nation with a universal bai, ofA aislotted 105 tion with the actuatorarranged to shift the yokecarried thereby, a lever having' a wrist To l v'on' of said leverrelatively to the ribguided in said slot,` a ribbon-vibratinglever, v y b ibi-ating lever when said carrie'ris a linkl connecting'said levers, a carrier on shifted downwardly and thereby rreduce which said'levers are pivoted, adplaten shift'- .thea'mplitude of rvibration of theribbon ing ,fi-ame, on' which said carrier is mounted, 11o when the parts are shifted to noneprinting said carrier shiftablef up and down withf position. f j said `frame to maintain an operative'relaf 17. .In a typewriting machineythe combition lbetween the ribbon and platen as the nation with ribbon-vibrating mechanism `-latteris shiftedv up and down, and `means Y 'for use with a ribbon having` upper and to shift said carrier up and Adownen said 115 lower color bands, saidmechanism'compris-` shitting frame to vary the position of. the ing a,ribbon-vibrating'leveig,ai slottedacturibbon relatively/to the platen and thereby f ator, a lever having' a wrist slidable iii said bring` different color zones i of the ribbon,

slot topermit the levertob-e'shifted, a link into operation.y 4

connecting said levers,-an`d'ashifting device Q1. Ina typeu'fritingI machine, the com- 120 :on which said leveisl are mounted,said actubiiiation witha platenshifting frame, of l f atoi'-opei'ablerthrough sai'd'leve'rs wheny said va ribbon vibrator, an actuator therefor', a shifting device is in an"'i'iiterin'ediatejposiswinpjng support or arm von; which 'the 69 tion to;y vibrate the ribbon and er vibrator ,is lIn o1 1i1ted,` a vertically slotted y fii'pper c'olor'band overithe print" `guide .plat onfffsaid,l shifting fianie` `in 125- movement, a.y slide mounted on'the shifting ,v

frame and provided with a cam slot by bodily up and down with the which said arm is shifted up and down to shift the ribbon vibrator and thereby bring diil'erent color bands of the ribbon into active position, and means to cause a` greater throw of the ribbon vibrator by said actuator when one colocband is active than whenV the other color band is active.

2:2. ln a typewriting machine, the combination with a platen shifting frame, of a ribbon vibrator, a swinging support or arm on which the vibrator is mounted., a vertically slotted guide plate on said shifting frame in which said arm is guided in its swinging movement, a slide mounted on the shifting frame and provided with a cam slot by which said arm is shifted up and down to shift the ribbon vibrator and thereby bring different color bands of the ribbon into active position, a key-actuated rock shaft, and an arm on said shaft having a vertical slot and pin connection with said slide to actuate the slide, said slot and pin connection permitting the slide to move platen shifting frame.

223. in ribbon shifting mechanism for use with a bichrome ribbon, the combination with a ribbonguide and ribbon-vibrating mechanism therefor, of a shifting device for shifting said mechanism 4to bring either color stripe of the ribbon into activity, a key-operated rock shaft for actuating said shifting device. a stop to prevent said shaft from being rocked bevond its normal range of movement, a finger-piece connected to said slop for moving the latter to inoperative position. and means operated by said linger-piece to rock said shaft beyond its normal position and thereby operate said shifting device into position to cause the ribbon-villiniing mechanism to be silenced or moved to incffcctie position,

224-. lin ribbon mechanism for typewriting machines, the combination with a ribbonvibrator, of an actuator therefor, shifting means for bringing either stripeof a bichrome ribbon into activity, said means comprising a key-operated rock' shaft, a stop to limit the rocking movement of said shaft and thereby preventing the ribbon mechanism from being shifted to inoperative position, a manually operated carrier for said stop,` and means between said carrier and the rock shaft 'whereby when said carrier is operated, the stop is moved to inoperative position and the ro k shaft rocked to position to silence the ri` bon-vibrating mechanism. i

Q5. ln a typewriting machine, the combination with akuniversal bar, of a ribbonvibrator shiftable bodily to two printing positions. and having a longer painting stroke for the unusual ,color than for the usual color. the shorter stroke of the ribbon vibrator comprisincr a lock to prevent` overthrow of the ribbon, and a stop being also provided to prevent overthrow at the long stroke of the ribbon.

26. In a typewriting machine, the combination with a universal bar, of a ribbon-vibrator shiftable bodilv to two printing positions, and having a longer printing stroke for the unusual color than for the usual color, the shorter stroke of theV ribbon-vibrator comprising a lock to prevent overthrow of the ribbon, a stop being also provided to prevent overthrow at the long stroke of the ribbon, said ribbon vibrator heilig mounted for bodily 1,ase-shifting movement, and an additional stop being provided for arresting the ribbon at the conclusion of the long stroke at the time that the ribbon is in its, upper case shift position.

27., In a ribbon mechanism for use with a ribbon comprising different color stripes, the combinatibn with a ribbon-vibrating lever and an actuator therefor, of a link and lever connecting the actuator to said ribbonvibrating lever, a support on which are pivoted the said ribbon-vibrating lever and `connecting lever, said link and connecting lever arranged to swing.; about to dead center when the ribbon is thrown to printing position, to thereby serve as a lock to prevent the momentum of the ribbon vibrator from carrying the ribbon too far, said support shiftable to bringr a different stripe into use, and means whereby the relative position of the said link and lever is changed as the support is shifted, to thereby vary the throivof the ribbon eifected by the actuator.

2S. In a typewriting machine, the combination with a lary-operated universal bar, of a ribbon-viln'ating lever, a ribbon carrier vibrated bythe le\'er,and operating connections between the universal bar and said level', the said connections comprising an interponent lever actuated by the universal bar, and a link pivoted to said levers to transmit motion from said interpellent lever to thev ribbon-vibrating lever, the interponent lever being so arranged that its direction of movement at the point thereof at which the power is applied `to said link gradually changes to a direction substantially perpendicular to the direction in which the power is applied by the link to the ribbon-vibrating lever, so that durinpr the operating stroke of the universal bar the ribbon is gradually brought to rest over the printing point, and overthrow of the ribbon is prevented.

Q9; In a typewriting machine. the combination with a universal bar. of a ribbon v'ibrator for vibrating a color for usual u` and a color for unusual use. said vibrator shiftable liodilv to set it at two printing positions from which it is vibratable for printing with said colors respectively, and motion-transmitting means forming a. connec- I tion between the universal bar and said f'fvlbrator, said means arranged to cause a printing with the unusual color lthan when set forprinting' with the usual color.

4:''fbrator for vibrating'a color ror usual use and 16 afcolor for unusual use, said vibrator shiftn' "f able bodily to set it at two printing positions from-which it isvibratable for printing with .Said l@0101's respectively, and motion-trans the'universal bar and said vibrator, said means arranged to cause alongenprinting ff'ffwhen the vibrator is set for printing with fj the unusual color than when set for; printing "ft2 falso shiftable bodily to aV third position, said Q/"ducea still shorterk stroke ofthe vibrator whenvibrated from said third position.'

for vibrating a colorv for usual use and a color for unusual use,`said vibrator shitable' bodily to'. setit at two printing positions from which A i respectively, and motion-transmitting means bar and said-vibrator, said means arranged toycause a longer Vprinting stroke of the -vi- @brator by the universal bar when the vibra-` tor-is set for printing with the unusual color v.lbetween the universal bar and said vibrator, saidmeans arranged to cause a longer printi'ing'stroke fof the vibrator by the universal ar when/'the vibrator is set for printing Q ith the unusual color than when set for i 6'()E printing with the usual color, said motion- ',Qf'transmitting means? comprising a. lock to limit the throwof the vibrator and'prevent overthrow of the ribbon. i

' 33. In ribbon mechanism for use with a nl'. 65j ribbon comprising different color stripes. the

'.'llonger printingstroke of thev vibrator by the niversall bar when the vibrator is set for' 30. In atypewriting machine, the combi. nation with a universal-bar, of a ribbonvimitting means forming a 'connection between stroke of the vibrator by the universal bar with the usualicolor; said Aribbon vibrator motion-transmitting means arranged to pro-A w 25, i., 31. In atypewriting machine, the combina-L l tlo'n with a universal bar, of a ribbon vibrator itis vibratable for printing with said colors ",forminggaconnection between the universal u an when s et for printing with the usual. color; said -ribbonvibrator also shiftable a still riting machine, the combi shiftable bodily .to set it at two printing posi-y *tions from which it is vibrated for printing f ith said colors, respectively, and motion-r ransmitting vmeans forming a connection combination with a ribbon-carrier, a ribbonvibrating` lever, and a devicefby which saidl lever is oscillated, ofi-a support' upon` which are mounted said ribbon-vibrating lever and said lever-oscillating device, said support shiftable upwardly to carry said ribbon vibrating lever and ribbon-carrier togetherA with the lribbon when .it is desired to bring the lower stripeof the ribbon into lise, and means tovary the relation of the ribbonvibrating lever to the said oscillating device as thesupport moves upwardly, Aso that the throw of theribbon-vi'brating lever is greater when said support is in its" upper position.

34. In a typewriting macliine,-the combination with a key-operated universal bar andframe, of a ribbon-vibrating lever, a lever having a shiftable connection with the saidlastnamed lever to the ribbon-vibrating lever, said levers, link and ribbon 'being Vshiiitable up and down to bringdiierent color stripes into use,said shiftable connection arranged to vary `the relation ofrsaid levers and link as they'a're shifted upk and jdown so that the length of throw of the rib'- bon-vibratinglever is different for different color stripes. il,"

' v55. Inv a typewritin'g` machine, the combination'with a ribbon vibrator for'vibratingfa ribbon over ythe 'printingpoinn of a *keyvoperated vactuator to actuatesaid vibrator,

and means for shifting said vibrator kann .universalbar frame, land alink connecting concomitantly varying the relation of the l actuator to the vibrator, so that the ribbon is carried away fromy the printing pointan'd its amplitude of vibration so reduced that the vibration of the vibrator by the 'actuator will not move the ribbon to 'position` to cover the printing point.

, 36. In a typewriting nation with aribbon vibrator; for vibrating a ribbon over the printing point, of a keyoperated actuating device, means for transmitting motion from ysaid deviceto theribbon vibrator for actuatingthe latter, said machine, the combitransmitting means comprising a lever and,

link connected tothe ribbon vibrator, and means for shifting the ribbon vibrator to carry the ribbon away from'the printing point and simultaneously-vary the relativef .position of the link and actuatinglever to reduce the-throw of the ribbon, so `that the vibration 'of the ribbon vibrator bythe actuator will not move the' ribbon vibrator to position to cover the printing point.

37. In a typewriting machine, the'combination'witha universal bar, of a ribbon vibrator for' vibrating a ribbon having a colorstripe for usual useand a color ystripe for unusual use, said vibrator shiftable bodily to set it at two printing positions from j which it is vibratable foi-printing with saidv color stripes, respectively, 'motion-transmitting means forming a connection between the universal bar and said vibrator, said means arranged to cause a ,longer printing etriilie of the vibrator b v the universal bar when `the vibrator set for printing with the unusual colei" `etripe than when set for printing with the usual color striiie`-r said inotion-transmitting means arranged to Jrorin a lock to prevent verthrow-ot` the ribbon when the usual color stripe is in use, and a stop to prevent overthrow at `the i longer printing stroke of the vibrator.

brator, said ineens arranged to cause a longer printing stroke ot the vibrator by the universal bar when the vibrator is set for printing with the lower color stripe than when eet for printing with the upper color stripe7 said ribbon vibrator being mounted for bodily caseshiiitiiig movement in addition to said lirst-inentioned move nient thereof, said inotion transmitting means arranged to forni a lock to prevent overthrow ot' the ribbon when the upper color Stripe is in use, a stop to prevent overthrow oi the ribbon when the lower color stripe is in use in one case position, and an additional stop to prevent overthrow of the ribbon when the lower color stripe is in use in the other case position.

39. In a typewriting machine, thecoinbi i nation with a universal bar, of a slotted yoke carried thereby, a lever having a wrist guided iii sai'd slot, a ribbon-vibratinglever, a link connecting said levers, a carrier on which said levers are mounted, a platcir shifting .i'raine shiftable to diii'ereiit rase positions, means for causing the said carrier to shift when lsaid frame is shifted, and means to shift the carrier while said `traine is at rest.

140. In a typewritiiig machine, the coinbination with :i universal bar, ot a slotted voke carried thereby, a lever havingl a wrist guided in said slot, a ribbon-vibratine; lever, a link connecting' said levers, a carrier on which said levers are mounted, a platen- Shifting frame sbiltable to diii'erent ease positions, and a key-actuated device 'for shifting said carrier lo bring: different color stripes of a ribbon into use, said shifting device ioriiiiuig a connection between the carrier and the platen-shilling.,lr traine for eaiisiiinI the carrier to shift with said 'traine and maintain an operative relation between the platen and ribbon iii the dilierrnt rane positions.

4l. ln a typewrilingg machine, the combilarsneo nation with a platen shii'table to upper and .lower cate' positions, of a ribbon-vibrating lever for vibrating.,r a ribbon having diii'erent color Zones or stripes, a device by w iich said i lever is ope ated, a universal bai-to actuate said operating device and inove the ribbon over the printing point on the platen, a support for said lever and its operating device, ahoy-operated shifter for shifting said slipport and thereb),7 shifting' said lever and operating device up and down tobriiig either color `stripe into active position, means to vary the relation of the said ope ating device to the ribbon-vibrating lever during the shifting of said support and thereby vary the amplitude of vibration for the di'il'erent tions, ot a ribbon carrier, a ribbon-vibrating` lever, a universal bar, a lever and link formingan operating connection between the uni versal bar and the ribbon-vibrating lever, a support on which said levers are mounted, a shifter connected to said support and operable to move the latter to thereby shift said levers and bring' either color sti-ipe of a bicbroiiie ribbon into operative position, a connection between said shifter and the carriage shift rail for moving said shifter and support up and down as the platen moves up and down, and a key for operating the shifter.

Il. .ln a tyliewriting machine, the coinbinatioii with a shift rail, of a platen snpported thereon and movable therewith to upper and lower case positions, a ribbon carrier for a bicliroine ribbon7 a ribbon-vibrating lever, means comprising a lever and link connecting' said levers for actuatingr the ribbon-vibrating lever, a support for said levers, a bracket on said shift rail, and a shiftinfnlr device having a slot-and-pin connection with said support to permit an up and down movement of the support relative tothe shift rail, and a shifting device having a slotand-pin connection with said bracket, permitting' a horizontal movement of the shift ing' device and causingr the, latter to be moved up and down with the shift rail, said shifting device comprising a cani operable to Shift said support vertically when the shifting device isiuoved horizontally.

il. ln a ribbon mechanism for typewritingi' machines, the combination with a universal bar. el" a ribbon carrier, a ribbon-vi- 5 @lined slot-and-pn connection with saclsup- Witnesses:

bratng lever, a lever operated by the unversely, andv key-operated means for'causng versal bar, a link connectlng said levers, a said movement of the shifting device.

support on which the rbbon-vbratino lever T is pivoted, a shifting devcehavng z:an n- BURBHAM C STIOKNEY' port for movlng the latter up and down, W. O. WESTPHAL, when the shifting. device is moved trans- F. E. ALEXANDER.

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