US985506A - Type-writing machine. - Google Patents

Description

A 1.1'. nnown. 'HIE Wll'l'll IOBIIB.

nnlonxnl tmp 13.19. am. 985,5()6.A MM Peb. 28, 1911.

s Inni-algu x.

A. T. BROWN.

. TUB Wlll'll IAUKIHE.

. 985.6 l funnel yumm ma. 1o. xm. d M 28.1911..

l IIIIIHIIIT I.

l are Lio 55 thc drewings comprises side platee 1 from "UNi'iicii s'iuifiics PA'rnN'i OFFICE. Anlxnunrii 'in orriiirnncuen. iinw non;

i 'rYrn-wiiiriiio I iiciiiim 5.500, lpaeilcatlen of Lettere Intent. Pnwntd PQI), 1911,

v Applteettol el December l0. |006. iertel le. 841A To all what it ma concern: which risc poste 2 that su ni plnb B. if, humm 1.911, nexium T. Biiown, 3. Stendurds-4 rising tremiti wp pkb eitileii of the United etetcs, and resident of support n stationery cerriege r'eil l w h Svrecuee, iii the county of Onondaga und `iin-lined iipwnrd und townrd the beck el i -Stete'of New York, have invented cert-ein the I iieihine es shown intlildrnwingl. N Il l newl end ueefiilf-lniprovemente in lfy|i-' cieriiiigcfrinl h es in ite trent dp 'i Writi Mechines, of which the followtugis rouwen-.in ivhich run enti-frietwn bell el y"`;iiiventionv relates inftypew-riting mii.) 7' -iiin;lj'8=. f"t$nid carriage oo mprieu een' ehinee und especially to carriage feed mechnegende and also end pieeee 9 li i eniliiof such miichineii.v u A'. "brvilldrlll'lxid frying uw t i Hy invention has for 'its principal ob'ect Yatou' l1.` The lower cerriege rail Q n i provide `an improved escepementmec iieed-"rack -lixed to its under lid Ind d nigm'fgd v com iections and :midv invention ffeetl. ruck meshes with two geen 18 i ,15, Nlisieteinjthe feiitures of consti uc'tioii und 'and 14..' spring li-uni l hevindnv 1.'

j combinations and arrangements of puit-imita ...spring 1.6 coiled therein is nioun b tb of which-will be fully eet torth herein undA vzside of the gear wheel t4 which is y perticullrly pointedoiit in the claims. "connected with the inner end of leid l In the ecoompenying drawings, Figure lj 4'I t-to drive the cerriage in letter s ille- I l0- il n front t0 rear vertical sectionel-1view` of'ii 'l :tion und the geur 13 is geared to e netpe- 7" typewritin v'in ecliiiio liiiviiig my'inven'tioi V" :iiient mechanism .as will hereinafter mon embodiedt ereinrsiiid v-nw showing onlsc cleiirly appear. The curing: moiinti licev.lunch of aiiid-'iiiecliiiio un in necessary toffil iitshfinvii and hrietly descri .d.'is not tratethainvention. Figs. 2. und 3 iiizedetiiili` inthi's aiihciition but is claimed in my ior vieweo! theescapcment'mechanism looking lPatent o. 910,987, dated Jennery It vinthedirect'iori ofjth'eiirrowinlFi'g. 5,'thc- 1909. viewelhowing theroteryftixithed device that j The -printinginstrumentalitice compri il eonnectedwith-:thcj'carria iind'sliowinigfv two sets'nt type bars '17 end 18 mounted Athe feed dogs 'iii section,l tie parte heini;l respectively on groqvcd rods20end91whieh chown 'in difcrent Positions in the twol ere mounted at their ends on the under side l5 View. Fig. 4 ia e ront cleviii-ion 'ofthe of tho toi plate ae beet shown in Fig` 4. yesce t niechauieln and o! come of the Euch of t io Peripheral grooves in the ee--V -nlociiited perte ofthe typewiiting ninchine. niente 20 nin 2l serves ns n bull roo. for the top plete of the letter being shown in anti-friction biills 22 which coperlte with 35 Section. F ig. 5 is a. fre rnientii'i'y detail view hall races in eyes formed .in the pivotal ende 00 of the ewepe'ment whic is shown in section of the type here. This grooved nient conA on e vertice! piene extending fore und aft of struction supiioi'tinil bell bearing type bell the machine through the center of said in tho genera wa erein shown is cleimed escapelnent. Figli isefragmentary ccntrnl in my liitcnt No. 69,418, vi-untedJuneStli, 40 fore end ett vertical sectional view of the m10. In the present iiistiince.the ty lie'rii u.

upper rear part ot the typewriting machine nro mounted on two segments, one o wliieli o li ii somewhat larger `scolo than Fi l. in neiirer to the printing Point end to the g Fi?. T und 8 ere Views similar to Fig. i g buck ol the innchiiie than tio other, the type E hu with the ports in diercnt positions and I bei-i. .on ono segment alternating with those 45 soine of the ports shown in .-:iiid Fig. il' on tho other. Au shown in the present in X00 omitted. nienoe the eye ot' the type ber compe-ieee n Sinne of the features of my invention are strap which is cut through at 93, the two ii plieiible to typnwritiiig machines goneronde of the strep bein connected t n l but some of ino features nre more cepeby ii tightening screw und the be non $0 cie ly designed for use in ii front-strike or consists of two coned ringe 26 threeded into l viii ble {gewritor and I heee accordingly the e e o! the type berend retained in edillustrltod e invention iipplied to auch. 'hinted position .y tightening tho Screw 94. imichine. This forni of bell bearing type ber ia not ot The moin frame of the iniic'nine shown in l my invention but ifs the invention 0f John ll. Barr. Each of 'the type ber! nl .i n

j its free end a typeblock with a single z ually rest a 'tyfe t t o iha type bar segments.- Each oft*v linka V28 -ati.

outeror lower end is pivoted to the up r end of a sublever 81 'said aub lever 'ng also arranged au antially.

.radially of the type bar'aegmenta and all of them being pivoted on a pivot wire 82 that lies in a slot iin a hzulrlevel; segment 88 wlilich passes aroun t ty r eegniel nt-an is secuneld atits'leilds topetlielvundefi-ide of th: t ate. erear' o eaeginen 88p formed with a seriee'of radial slots, each of thesub-levera 81 being mounted inone'jof aa'id alots. Each of said sub-levers haa a depending arm 8.4 to which ia connacted the reaiend o! a returning prins` '355, vthe forward end of which is conn the .front Aof to a hook'88 secured to the fronted@ of the aegnient'88. Each of the sub-leven, 81` haa ivoted' thereto at 87 a forwardly extending link 88, the forward ,nd of which ispivoted at 40 to one arm a bell-crank lever.41, said levers .bein piv ted on trans verse pivot rods 42 sutab y sup rted in the framework bf the machine. ach of the bell levers 41 'has pivoted' thereto at 48 the lower end ofthe stem 440i a printing lretva 45. Allof the stems44pass through auitab o nings in a. plate 48 which is of the genera ate pad form shown in the drawinge and whi isv suitably v secured to the si e plates 1. The construction is such that when any of the ke s is depressed the correapondinghlink' will be drawn toward Y .machineand theeorreepondlng aub-lever 81 will-be dra-wn toward the .pyl'i'ltxs b ll 47 dto h li ion a co ar secure t e e po y with the under side o yf.

.tha plata 46. The `ey action .just describedv front'of the machine, thus actuatin the corresponding type bar through the lin 28. When the key is released the parte are restored .to normal position by tie.letumi 85 and they are arrested in norma stem and contactin ia not of my invention but is the invention of gli: Barr.

lates and 51 which 'eremountedbelow he top plate 8 and said' ar wheels extend upward through a suita e alot in the top p ate. The aprilia'l Adrinn 15 is rigidl mounted on aaid a-ft 48 and said sha carrieaat ita rear end a winged nger iec'e 52 by turning which the tension o the spring. 15 may baumulated, the shaft bei vheld in its adi position by suitab a b a screw 54 which vund com resse gear vwheels `18 and 14'Iare both" loosely mounted aide by aide on a shaft 48-v .(Mg. 3 that ia iournaled in two frame `heframe plates and foonatitutaparte y of a framework which sufporta the entire campement mechanism an y which il secured es u whole tothe under side of the tpp plato.

The platee 50 and'51 areconnected by two crosszpiecea 58, each 0i which il cured to the. under side of the top plate t rough s'aid'top latean iathreadedinto the cross piece. he construction ia auch the escapement mechanism 'may be aneinhl'ed as an entirety andma be placed aa an entirety in the machine an inpoal `'tion by the screws 5.4. I have not herein shown the connection between the inner end of the spring 16 and the gear wheel 14,. The gear wheel 18 meshes :with

a mien `55 which is mounted on a shaft 58, wginh ie journaled atV its ends on ooned, .crawl-5T and 58 threaded through plat.

50 und .51 respectively. The screw 4571e provided `urithn lock nut,v80. The

isfree to turn oii'the shat butpia'lng,

5 `free to move endwise of laid sha .reorfiioe of`said pinion has ratche clutch teeth formed thercimeach tooth havi one inclined audone abrupt face and said utch teeth mesh with corresponding clutch teeth on the front face of a leeve 51. which is downward i '75 that the cnrrisge feed mechanism-including free to slide along the shaft 55 and which has ii tooth 62 rojecting from its rear f, into a slot. 63 ormed in ar.- t

of the shaft 56 so as to lock the s eeve and ther. The construction is auch. that thea :geneve 61 may the shaft 58 until thee-clutch' ou of engagement but the tooth 68 Flayil?. in theslot 68 prevents relative rota ion o 'the sleeve and shaft. 'lheK-sleeve'ia noi-magi held in its forward. position with the' olii l teeth in engagemen' by a apring'85 coiled shaft to rotate to vabout the .iler

between on these ports. e construction is au that when the carriage is moving in letter l t direc tion the sleeve 61 and shaft are oonstrained to 'turn with the inion 55 but when the carri iaheingm5 rawn .toward the right the rat t clutch' th will permit.l

positively heldagqinat lrotation b a gravity gawl''which is pivbted to the rame' plate the Vinion55 to turn inde ndantlfy of the' "In this return'r'no ion the shaftie ent 64 undI the sleeveol.

iio

Near itaforward vend the shaftliti has a` worm gear 70'whch meshes with a worir- 7l -xed on the lower end of u shaft72 which inclines upwardl und toward the front of the machine and as a rotary toothed device 78 iuountedon its u per'eiid for copera-4 tion with the feed' ogs ae willpreaent'ly iis comprises an upwardly extending arm th'i to appear. 'lho shalt 72 in mpgmrted hy n bracket 74 an arm 'in ot which i secured ht' screws itl to tho trout face of the triuuc date nl. au bent. shown in l"i d. 'le'hc racket. ,74 comprises a downward y nud rearwardly cxteodmg'nrtn 77 (Figa. l and At) having nt ita lower end a lul.: 'itt through which in threaded a nen-w ttttl'Heat chown lin Fig. 0), the u per end of which tt formed with a central ongitudiual borob in. which the reduced end 8l of the shaft 2 is journalcd. The screw tto is provided with u lock lult 8 9. [As heat ehown in Fig. f thc u iper end of the 's'mt't I2 receives n support rom a hall hearing which comprises a cont-d bearing surface 83 formed on thc shaft tor` cooperation with anti-friction hulls 84 that run in u eno-shaped hearing tto which in "of the shaft .72 und as shown in and 5, this devies has a single upwardly cxtending tooth 87 which cooperates with two feed dogs ttt) und ttl projecting from and, iixcd to or forming part of a rocker 92 hnv-.

in); rearwardly extending ears 03 plvoted on! n eodthtvI'e,\twt.-eu two upwardly .and for*- 'wnrdly extending branches 05 of tho bracket 74 in which lu'anchcs of i-'n'id bracket said har is press-ed toward the. rcar of the mn?.

. sol

rod or pin 94 isvtnountcd. .lhc rocker 92 whit-ii. an arm 97 is fccurcdby riveta 98. 'lhc arm JT its made of lifht spring;r metal nud its uppcrcud is formel universal har lt'ltt which` when laid univlsal chino,as `ihown in Fig. 8, has the center on 'which the arc oi the segmental bnr is struck directly in fi'ont ot' the printing point. as' `uhowu inltig. i. 'lhin universal har i0() is adapted .to be. struck hy contact vparte, 101 ou the several t ype. lmrsg'ustfiuaidc thc t ype .tt. 'I'ht` central port o thc arm 97 is cut away as fdiown nt. 102 (Fi 4) fortho fake of lightness und also to ai d to the' tlexibloueas ot' the arm. :'lhe. rocher h2 in controlled hy u opting ltti coiled about the radii/t and hearing at one endo ain-t ono of thc ears 93 and at the other emltaguiusta )in 10i profeelin! from the inner face o one of the :rane les tlf of the bracket T4. The tension ot' this s ring is exerted' to nuwe. the u per end ol tlic rie-lun' toward the front o the machine unil'the. feed dogs .ltt and 9i toward the rear of ilu.' machine. the motion oi' the Al'mrta undcrthe impulse of said spring being imitcd hy a cross pin ttm extending tmtwecn said branches ttf., 'lhe cnrintg between the shaft 'i2 und the cari-inge is auch that one complete rototion ofizaid shaft permita` the .ing between the dogs and lill.

into a segmental mos g carriage to he fcd'n ingle letter n ace o that only one tooth in mounted on aai shaft. 'lhere are advantages due to this conutructioieuud Home o l my elaine are-limited to it hut as far ns nome f'caturett of myy invention nre concerned the shalt -or campement wheel might carry more than one tooth andl the caring he proportioned accordingly.y

llie t'ecd dog nl 'aback of and a litt a to thc left of ltho dop,r llt), thelatterdogbei `normally in engagementwith the tooth 8 nu liest shown in Figs. :i und 5', and the d hein v rigidly connected nud maintained n tixct relation. 'lhc dog 90. has a llat workuur face tto* witlrwhieh n corresponding working `taee vS7* ou the toot-h 87 oteacta,v

whereas a beveled workin face 91* on the teed dog ttt cooperates with a correspondingly beveled workin 'face'ST" on lthey tooth- Hi'. one of the t: mractor keys is struck the. correspondingt vpc bnr, just before it reachea the Litauen, strikes the universal bar and roces thc roek--r 2 to the poaition shown iu Fig. 8, thus i moving the dog 90 from in front of the tooth 87 and lenving the shaft TJyfrce toturn; the tooth 87 alty I the rocker 92 remains in this position until the shaft luu-x completed its rotation the tooth 87 will strike. the tooth 91 which hatt been moved forwardly into the pathof'said tooth which will he arrested by mid dog until the t rocker has i'cturnmltoward normal position y far enough to free aid tooth from said dog 01 when :mid tooth will move into'engogement vwith the dor 90 without atlording a rotation of thel fha t, the dog 00 holding the sha ft until another actuation of the rocker.

ln Fig. .5 the dogs 90 und 91 oro shown' in section and in their normal position and in Fig. 3 said dogs are'shown iu their operated position, the parts being in the positions they assume at u full deprsion of'aprintingkey and before the shaft hns rotated.

'As shown in'thesc ligure# of the dnwings the dog ttl is bevi-led on its right-hand. foco at 0l* und the tooth Si' is correspondingly beveled on its left-hond face at 8?',a`nd

the relation ot these parts is such that when -the universal bar is struck by a t pe bnr the ybeveled face of the dogttl wil trike ,the hevclcd face of the tooth 87 and ciun said tooth toward the right, thus setting tho carrier 73 inl motion ver quickly, the do' tll striking the tooth 8 with considerarlo force. 'I-ho toothed carrier' 'itl is geared up so high that the tendente of the` driving .spring t5 tu turn' said toot ed currier is not velv troug und the carriage is set in motion more rom itlv by the device` that has just lweniesoriie than. it would ho without it. it willbe seen that when the universal har is truck by a typo hor the dog 0l .strikes the tooth 8i a b ow and said tooth also strikes the dog 90 a blow las Y the form shown in Figs. 2 ani 3, said device isa . to the end of the shaft 72, the device extend*- v ing outward from said hub and being coiled ynew whether there be one tooth or more than one on the tooth carrier. The uniof this blow on the universal baiis illus- 4, I, Veaa,aoa

at the end ofthe step or letter-.s are niovef* ini-nt of the carriage uml this atter blov iu rather a shui-p one .cause the speed of the uhaft 72 is hi Ii. For these remains the rotary device 73- m inade'of 'spi-ing metalof coinpriaing a linb 106 which is threaded on through the r nter art of the circumference of a cire e ,and the .tooth 87 being bent up from vthe free end of this coil. Said tooth 87 is thus connected with the shaft 72 by a lon resilient arm. As far as l am aware thia spring mounting of the tooth is vcrsal bar is, also, struck a sharp blow na laid universal bar ia operated practically bythe free end of the type bur. '1`Iie ellect trated in Figs. (1,.7 and 8, Fig. ti showing the position of the partsat the instant when the type bar first encounters the 'universal bar,*1"ig. 8 showing 'their position at the instant when the type strikes t'he paper and Fig. 7 showing an intermediate position. Aa iihown'in Fig. 7 vthe tirst etl'eet of the blow of the tyre bar against the universal bar is to bend t ie spring aini 97. This nl 'in quickly' recovers its no, iiiiilslia tliusegiving-a sharp quick action to -t ie dogs and a nick start to thetimtleearrier vTil.' The miilienc of the arni 07 causes said ai-in io absorb ess of the energy of the type bar and adda to the etleetivenessof the beveled dog 01 on.the tooth 87 and it. also reatly leasen tha noise due to the blow of t ic type har against the universal bar. 'lhe resilieiicy' of tli'ia aria andy the returning springA 103 aliaiasaiatiin giving a quick ieturn to the type bar, the universal bar aeting as a spring i-opuliier.

In many type-writing inachines. if, when a key iii struc the operator is a ittle slow to release it, the type har rebounds from the platen and then iitrikea it asi-cond time, thus eausiu double printing. 'lhis is prevented in t ic present. niaehuie by the univoraal lair, the-iqiring 103 of u'hieh is sullicient to prevent the type froin atrikin the paper a iii-cond blow tlie lu liereut ranil' euey ofthe spring aria ttf mensting against a second' imprint or is sometimes called. v

I have provided a space key 107 (Fignl in the key-board of the uniehine, said s nice ey being mounted on the upper end o a steinL 108, the lower end of which is pivoted at 110 to an arm ll-l'projectin'g from a rock ahaft 1l2'whichia pivoted at ita forward end in a front plata 113 and at ita rear end in a back plate 114 of the main frame of the mach ne. Nafar its rear end the shaft 112* ghost -as it ia provided with a returning' spring 115 y 'the-'forward end of the arm v122 an feed of the carriii e.

aa to eurer up the bearing at the up tect sai heal-in one Iiere shown is cliiiined in my. prior in vproviding l .end with said aha-ft and at tha other and with the back plate l1H. The rock ahaft '112 haa au armliti. rojaet'ing therefrom on the o iposite eidat ereof from the am ll1 i-o tl nit when said shaft ia I'ochd by the ilei'ression ofthe apaee k 10? the free end o the arm 116 ia yeleva At ita fraa end said iiriii has pivoted thereto the lower end of a link 117, the up r end of which is piroted toan arm 118 arming part of a roeliing franie 120 that liea'acroll the blok of the bracket 74. The frame 120 haatwo ears-bent downwardand forward therefrom vwhich are pivoted yto the bracket 74 on a screw or screws 121 threaded into the aidu 'of the bracket. Said rocking frame coinpriscs an nrni 122 that;` is bent in the mannerv shown, for example, in Fig. v6, ao that its free'end 123 lies above and back of tha lower ai'in of the dog rocker 02. 'lhe oo nsti'uction is such that when the key 107 ia depressed the arm 118 is elevated, rocking the fraaie 120 about its pivot and de reusing operating the dog rocker to etect a letter space ent instance the rame 120 ia made of diaet, nietal and the arin 122 is of auch breadth vof the shaft.

v2, the carrier 73 and t ie feed dogs, and to irotect these parts from duat As shown in the preaoirubhings'tiat may drop from tha front face of the ilaten.

The top pllate 3 of the machine comprises a part 124 (Fi v., tl) that curvea downwardly and ia inclined downward and toward the rear of the machine iu auch faahionaato and to ro-` cover u i the type bar vbearings from dust or dirt fal in from the front ace ofthe platen.` This du# guard 124 has-a aemi-conoidal form andextends 'jai-ther toward the front 0f ,the

machine than the front face of the platen and luisa vertical art 125 of segmental forni. 'lhe bracket l; above this dust guard, the escapenient bei above. the semi-conoidal part 124 and behi I plate forming the rertii'al art 125. A' to lmanner of the a dust guai'i in the genera 'Patent No. 071.7521,A datati Qetobar 4,

- Varions'other changes maybe made in the details of construction without departing from my invention.'

What I claimI as new and delire to aeoifra,

Ly letteral Patent, 'ai- 1. n a typewriting machine, tha oom- 4 extends behind and' ght be ion.

bination of a carriage, a rotary device geared to said carriage to make one complete 'rotation at each letter space feed movement of aaid carri and anv eecapement device s eollperative with said rota device to atl'ord a complete rotation of aai rotary devicev at operation of said eecapeinent device.

' '8. In a typewriting machine, the coinbination of a carriage, a shaft geared to said lo oar-ri and having a single arm projecting there and meana oopersting with said Inn to control the feed o the carriage, the gearing being auch that said shaft vmakes a complete rotation for each letter space iuove. le ment ofthe carriage.

8. In af typewriting machine, the comtion of a. carriage, a shaft gearing con necting said carriage and shatitao that said shaft makes a complete rotation at each lo letter space movement of the carriage, a

tooth on said dia and eeeapenient -elogia coting with aai tooth to control the feed the carriage.

4.#In a typewriting machine the eemal blnation of lL laten, a seriesof type bars kadapted Vo e e `said platen at a common printing point, a universal bar near said printl point -in position te be struck hy an opera type bar near the tree end of seid vbar eacapement dogs controlled by said un verla bar, a shaft having a single escapement tooth thereon controlled by said eecaement'dogsyand gearing between said sha and carriage auch that said shaft 4 35 makes a complete rotatioh upon each letter space movement of the carria 5. In a front-strike typewriting machine. the combination of a carriage having s platen mounted thereon, a series of frontstrike ty bars adapted to strike against' the fron face of said Platen. a universal bar naar Athe irindng po nt in position to he i struck by aai ty bars near their free ends, doga'connec with said universel har,

5 l' shaft inclined upward and toward the Ifront ofthe machine and having an escapement tooth on the up r end thereof. a gear naar the lower end o said shaft., and gearlng btween said gear and the carriage.

5 In a front-strike typewriting machine,

. `the combination of a carriage, a platen on sald carriage type hars adapted to strike the front face of sa d platen, eacapement mechanism near the printing ioint and operated u by said tlyie bara, a deter. ialile frame having an upwa ly and forwardly inclined bracket,

they upper end of which carries said escapement mechanism, and gesringcarried y aaid frameand bracket and connecting said .o escapement mechanism with said carriage.

- 7. In a front-strike typewriting machine,

the combination of a carriage, a platen on said carriage,type bars adapted to strike the front face of said platen, und carriage feed mechanisml comprising u shaft inclined senseo 5 upward and. forward toward the printing vpoint and geared to suid'rurringc, und csringe, en d carriage feed mechanism comprising u rotary shaft geared to siiid cnrria to make n completo rotation ot cach .Ein-titer space fecd'movement of said carriage, a bail 76 beuriiu.r for said rotarv rlevice,`and means for eentrolliiig said s aft.

9. lu n typcwriting machine, the'coinhination with u series of type hars, of a universal member ada ted to hooperated by e0 i.

the free ends of sai type hnrs,snid universnl member honig light and being sensibly :bendahlcby the impact of said type bars.

it). 1n a typewritirig machine, the combination of a carriage, escapeinent mechanism so for 'said carriage, a universal bar for. said eacapenient mechanism located near the println point, an erm csrryin said universal ier, and ty e bars the ree ends of which are ada ter to atriko asid universal 00 liza-r. said arm icing bendable byssid type ars.

.11..In a typewritingmachine, the com' lnniition of ii carriage, n platen on said carringe, n series of t ype hars adopted to strike l the platen at u common printing point, a universal harv near said printing point and adopted to he struck hy the type hars noar their frcc ends, feed dogs operated hy said universal bur, and a connection hetwcen said universal bar and 'feed dogs, said connection being liendahlc hy said type harp.

l2. ln a typewriting machine, the coln'bination of a carriage, a power device for driving said carriage. key actuated devices 106 and oscapcmcnt mechanism operated h v said key-actuated devices for controlling tno feed movements imported to said carriage by said power. device, said escnpement mechanism comprising a part neared to tho carri 110 and means whereby said key-actuated tevicea communicate s quick start to said geared part.

13. In a typcwriting nuiohinc, the onmbination of a carriage. a power device for driving *said` carriage, keytactuated devices, and cscspcmcnt mechanism operated by said key-actuated devices for controlling the feed movements imparted to said carriage by' said i power device. said cscnpeineut iiicehnnism comprising n pnrt geared to; the carriage 'nml carrying a tooth, and `n feed dog operated hy said key-actuated devices and arranged tojstrike `mid tooth n'nd to impart o quick stu rt thereto. 126

C Us,

e ada ed to'strike the incl ned face of said toot and to ve a quick start to said tooth iu -tlia di on ofitii feedinoi'euieut hy camming action. 1

15. In a typcuritiug niacliiuc, the comliiio nationof a carriage, a rotary device geared to said carriage to mnke a complete rotution at each letter-space feed movement of said 'carriage key-actuated devi and means `operated by said key-actuat devices .'or 1s controlling said rotary device and for im- .partin a quick start tov said rotary device. 16. fu a typewriting machine, the combination with a carriage and key-actiiated devices, of carriage feed mechanism comprisa 'rotarydevice -liaving a spring arm a means operated hy said keyactuated dcviccs 'for'impartiiig a quick start to said spring arin.

17. lu a typcwijiting machine, tlic combination of a carriage, a rotary device geared tu said 'carriage to make one complete rotation `at each letter space feed of the carriage, said member comprising a spring arm having a tooth thereon, and a feed dog coso operating with said tooth.

1 8. In caca nt mechanism for typevwriting machines, the combination of an escapcmcnt member connected -to its carrier throufli an interposed apri arm which is as rigid y connected tothe ca er and to which aaid m'ember is rigidly connected, and u cooperative escapement member. 19. lnheseapeinent mechanism for typew .ugma ecom na ono riti ch nea, th bi ti f feed 40 dogs, and a rotary device having a tooth mounted on a spring arm for cooperation with mid dogs.

20. In a typewriting machine, the combi-A niition of a carriage, a rotary device o rale tively connected .to aaid carriage, a spirali spring ai-in rigidly connected to ani rotary device, nn escapemeiitmember carried by said.spring arm, and a coperativc k -actuatcd escapemmt member. lo '9.1. n a'typevyriting machine, the combination of a carriage, a laten mounted on said carriage, a serieso type bars adapted to strike said platen at a common printing point, escasement mechanism for the car- 56' riaigeA inclu ing a dog rocker. and a s ring arm mounted on said dog rocker iin extending therefrom tpw'ard said printing maint and having its upper end adopted to struck an of saidtype baranenr the l0 has endo aai t bar.

99. In a typewryiiiig machine. the eoinhination of a carriage, carriage feed mecharocker naar the y in the keyboard comprising a printing point, a space.- of the machina, shaft extending loii-,

amok

ping on lfor controlling the feed of said y escapement mechanism ecm a 'nation of a ca gitudinally of thc machine and operated hy said apaps'key, a link extending upwardly fiom said rock shaft und nicaiis whereby said link operates said dogrocker.

Y Ina front-strike-typewriting-machinc, the combination with a carriage, a laten carried rt. below thc'front face of the platen, an a part which extends aboveand is co6 rative vwithsaid escapement devices an acts as a dust shield to prevent rubbinoor falling particles of dust gr grit `from pping-on the escapement evices.

the combination with a ca vtliereh carrie esca nient evieeiiA situated atfleas'tin e P.

a a laten carried thereby, carriage esca u t dgvices situated at least in gert ow'tliefront face of the platen, a` n a key-operatedactu ating device whichetntls above and iseooperative witli said escapement devices and acts as adust shield to prevent rubbings or from rop-l falling particles of dust or grit the eseapemcnt devices. 25. In a typewriting machine, the combination of a carriage, escapement mechanism carriage, a space key, and connections'- between said space key and said esca ent mechanism comprising a part whi serves as a dust giiard for a part of said escapement mecha. msm.

2 6. In a typewriting machine, the combi-v nation of a carriage, escapesnent mechanism foi' said carriage, and means for opera said escapement mechanism comprising a combined operating lever and dust for a -iiart of said escanment llieclia 27. In a front-stri ting niachine, tbe combination of a bara, escapenent mechanism situa our the printin point and adapted to be oper- IGN-1.10

extending labove a part of said'escapsinant mechanism and adapted te seve as add guard therefor.

28. In s typewrlting machine, the ceinhi-k Arriaize,a platen mounted on saidcarriagma'seriea of-type bars adapted to strike said 'platen at a common prin ing point, a universal bar near said printing point, escapement mechanism for he carriage operated by said universal bar and comprising a do rocker, and a ring arm mounted on sai dog rocker an carrying said universal bar.

29. In a typewrting machine, tlie combination of al power driven carriage, an

escapementl member operatively connected` key-actuated esca ment thereto, and. a member adapted to communicate m the Brat mention escape on to ment 'in the direction of its feedmovement.

iso.

Mece q ting with aid tooth carrier;

$0. In a typewriting machine, the eombl doge nation with a main frame com ming e top ntmg eye, and moana operated by aai plate and a carri mounted n ve aad top avg for operating said er.

'Sl ed at the borough o Manhattan city plate, of an aux iary frame mounted begn e neath said top plate, a rin drum and e of bow York, in the count of New ork trein .of connect v i h aid aprin and State of New York, is 7th day o drum mounted n aand auxhary frame an December A. D. 1906.

red to id cal-ria bracket ro tin ma aaidtnxiliarysiame, a soot i lo ma mnt-d in ma man@ ma pcrwimm:

ated by, laid train of seing a dog mehr J. B. Dlavll, mounted on laid bra et and hevxng feed E MWnu.

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