US1053480A - Type-writing machine. - Google Patents

Description

W. H. CLAYTON.

- TYPE' WRITING MACHINE.

APPLICATION FILED 1330.6, 1906.

Patented Feb. 18, 1913.

4 SHEETS-SHEET 1.

' W. H. GLAYTON.- TYPE WRITING MACHINE.

I APPLICATION FILED DBO. 6, 1906. 1,053,480. Patented eb- 18,1913.

4 SHEETB-SHEET 2 w. H. CLAYTON. TYPE WRITING MACHINE.

APPLICATION FILED DEC. 6, 1906.

Patented F9518, 1913.

' 4 SHEETS-SHEET 3.

W. H. CLAYTON. TYPE WRITING MACHINE.

APPLIO-ATIQN FILED DEC. 6, 1906.

Patented Feb. 18, 1913.

4 SHEETS-SHEET 4.

TON, a citizen of the United at Po plarf Bl1 1fi, Butler county, Mlssouri, 'have invented a new and useful Type-Wna specification.

more particularly A 1 Original application area September 10, 1906, Serial No. 32 42,029.- Divided andthis UNITED STATES PATENT OFFICE.

VJILLIAM HI'CLAYTON, 0F POPLAR BLUFF, IhLIISSOTJ'RI, ASSIGNOR TO. DALTON ADDING MACHINE COMPANY, OF ST LOUIS, MISSOURI, A CORPORATION OF IVJI ISS O 'URI. v

December 6, 19U6.

Specification of Letters Patent.

1 TYPE-WRITING MACHINE.

Patented Feb.18, 1913. I application flies Serial No. asses. I

Befit known that I, WIL IAM H. Gnar- States, residing ing. Machine, of which the following is a This inventionirelateslto typewriters and construction, combination and arrangement of parts.included injrelating to, and coopera'ting with th'e platen and'its carnagqthe escapement vmechanism, and carriage stop .lnechamsm; L

This application is divisional-lands continuation ofmyfornier application for patent for a typewriting. machine, ,ben 10, 1906, SerialNo. that part ofthe subject matter filedSeptem- 334,029, and covers plication known and classified as, Carriage'sg-carriage stop mechanism, which has been div ded out of former appllca- .tion. Y

. The object of the invention is to improve the construction and operation of the carria e of ypewi'iting machines generally anc in the present-embodiment of my in- V JGlltlOll, the same as 1n my said application though as. well referred to, I have illustrated it in a machine known as a front strike typewrlter,

applied to othertypcsof machines. 'Another object of the invention is to produce in comhination with the platen and the automatic .letter spacing mechanism coopel'ating therewith, improved escapementand stop mechanism, and tabulating mechanism whereby the platen may be caused to move laterally the width of one or more. column spaces, and includinga device for restraining the platen so that it. will not move or stop with too greatspeed orforce, which would eventually damage some of the parts.

Other objects and advantages of my in- .vention will appear from the toll'owingdescrlption, references being made to theaceon panying drawings in which i v Figure 1 1s a side-elevation of a typewrit- ,forsupporting I hey-levers. one of which levers is'sho'wn in 1 said frame, saidflview also showing the rock' ing machine embodyingv my invention.

7 7 'Fig. 2- is' a pers]')ect1ve-view of one of the frames the levers acted on by the shaft which is controlled hyisaid levers and to flmprovements in theof said apit' is obvious that it may be equally mechanism. F ig. sfiis a rear'view'of theup- .perportwn of the' machme. Flg. 4. lllusin the escapement, and also'an-escapement 5 shows one s che bearingsforthejescapement shaft. 6 is a' perspective View of the member co-acting .with' the escapement wheel ,to control the'movementlofnthe platen is a plan view of the platenfand its carriage and the rear portion ofj'the rnichinq the omitted to avoid confuslfon :Fig. 8 sli'ows a device for controlling afpa'wliivhichrotiites the platen when the'latter'is moved laterally, as for coliiinn'spacing." Fig' this mectional view of the platen carriaggand shows the escapeme'ntmechanism contr'ollin'g' the saiclcarriag'e. :P' Fl g. 10 is adetail view" of part of the escapemen t'j mechanism; and shows a swinging bearing supporting j'one shaped escfapement' wheeli' Fi'g JIQisLaseC- tmnal view of part of thefplaten carriage rack bar supported by sai d carriageeli'ectively to release the escapemnt oilstop mechanism front engagement; with the platen carriage. Fig. -13 is a perspective mechanism, includedcin the tahulating'nie'ch anism. Fig. 14: is aperspecti'vefvi'ew of a brake, or restraining jdevice', 'whichicooperates with the tahulatingfl or carriagejstop acts to release escapement from the platen carriage to permit lateral movement of the platen for column spacing or tabulating. Fig. 16 is a perspective diagrammatic illus tration of a train of printing parts'andv illustrates the same in relation to a portion m the escapementor"carriage stoplmechamsm. I

siderahl'e distance beyondtht' side 'fi'ames' and the keys 3 are lisposed in a conventional'or preferred arrangement over f the front part of the hase The. keys?) are the which comprises part of I the escapenient trates' a peculiarl y ftoothedjwheel included in letter spacing and WmdL-Sp acinait' Fig: 7'"

key-lever links 'and' ty e-bar links beingend of the escaPenientshaifL Fig.fj11is a' detail view of the devices which cont-r01. the rock shaft that supports the escapement' member cooperating' fwith'i the peculiarly and shows a lever which i'sj'operable by a view of a part' ofthe platen carriage stop.

mechanism. Fig. 15 shows the device which.

The base 1 sustains rigidly the two side frames 2 The base extends forward a con;

=Inemloer cooperating with said 'whel. Fig;

' supported'ih'ifian eSTQ, and the ,t \,'pev rriter .pri r iting keys and, through the medium of trains ,of mechanism leading ve t-ere eef' t d na d yprin jlOifwhich iconniectvsaiid' levers wit 51 inls'aidlfi'amest). It is-obvioilsithatf rings will tuphold 1 the ikeys" 35 fhnd that w en saidl keysjarepperatted forflwriting purposestthefieversfl "'are qpera'ted in opposition to therr springs'yfand that :said

, rods tively, actv to i restore the} entire. train of ,de'- vices toid "Orr-rest positionjfiThel uppert. ends of .the -levers 'f7fare, connected, by m'eane of; links lg with v type bars :13 which are mounted'on spindle's 'l4supported in .frames' 16.- "Said typebhrsflrm mounted h to that when yperfated the x record-on the front side of the-platen; thereby prodti'cihg records that are vis'iblefto the operator; At ,rib- "-1; bon 16 win'ds'upon spools within spool .easee 35 17, said spools .on the u ends of shafts ififivh'ich 'rqlect the 1 of thehjachih'el igy', 1);; These parts; and their cornbina'tion and anrangeinentar'e fil'lly illustrated and described in my Qthell fipv glicsitionl lferred to;' and inasmuch as they not feonstitnte the sub jeet matter: of the claims h'ereinf, exceptfii'n general ter fis, a d t br'oadly, "further description or illustration thereof inlthis present instance is considered unnecessary,

' "11 athgfiarriage support 19 attached to the upper ends o1" two standards 2Q extending from thebase of the" machine; a d "aplaten fearriage;v 21, "is supported thereon Balls "22 are 'located ihgropvesfin'said support and carriageand constitute the, bearings oi :the arriage.}"' 1=' plztte 23 is at reael'iiend of the "cam e ap'd a-sliatt24 i's j ournaledin'liear- ,ings in said Iatesff A,-"'p1'aten '25, of usual or other suita lemma-memes attached on said shaftJ? 'A 'kIiObi261fiQihQfiCh end of said: shaft for rnannal'engageinen'tfor purposes of; moving th e platen or rotating it. h This platen has its" front side 'visibleto the op'er ntor and the ribbon 16 extends crosswiee of the machine just below the horizontal plane of the uxisof the platen. lVhent-he keys 3 are depressed the ribbon is raised slightly and the type-bars strike the ysame "and 55 therebyv record upon paper held by the upp lfends frames ofthe'nmchine and acts to hold the end; view, A rock the frames 2 below the wheel .tirnr. 43 thereon, said arm hati wheel to 'ro ta te st and rfloves it toward its initial tionYthat' such tooth will pipg'rotation of the w ,bi-a'cket Q6 attached to attached to the rock shaft platen, them-1 bf reaped being, ut proxiinate'lyv at, thehorizont a-l. plane oft e jaxis -'--therefron'i; their nperat-ionresults in' theio pgfl of the platen. :Twofli nks'21 are suspended ,eration of thertype-bars' to'record ortprint: from thetplatns'haft24,;andua4paper-feed i a In the (embodiment; illustrated fheref atei rg lter 281s carried-by said links and bears '"three"rovvs of typetrriter keys lafndtheirlleagainst the "platen 25's6 that. iffipa'perbc vers 4 fafipi'tirjted mpon tlansverseftgds x51; started, between saidgrol lers it will; be carried said' 'leversuareangu ai; ingtorm'iandi haveffoniiroughby rotation 0f the platen,

,armfs"zttending vertically from theirgiivots f T e rear side ofthe platen earriage'hasa 5,5. From the upper end-oi each'pf sai arms *mok 29f: tbmposed of r'atqhet teeth; Avsh a'it i alinkf 6 .(Figs. l -,"and- 16)leads toga .co;'- .30 is "supported in anj fadjustablef-beari to'eratingi;lever 7;"= There are rt wd maps; formed, tha snpporting part Bland two ao f ,the?1ev'e1- *7,- one; group ei it -nea "ieaghqSc-rws 32 ope'ratin tin lateral holes and act'- side of theffmachin e at their-ear end {thereing as pivots for t shattlwhiie permittin 15 obs fsaidflefters ffiare mounted upon rbd skSff'sard shaft to rotate. The froht'end of sai, 1 3

"haffiafi' i sin a bearing 33 par'riediby' two arms se ame ed) we rock shaft at! a ring 86"jconneots anarm B7 on the rock; aftti with; a projection 38 on one 10f. the

v v bearing A ratchet pinion- 39 is on th'e f ronti of thegshaft-BO "meshes with the rack 29'jwhen the fronten of said'shaft is held up, 'A Wheel 40. is'pn'the rear end of thes haft fio and has a seri -bf ie'ethfl oneits eriphery, whichlteeth lire silbslanr tially iamondl Shaied v on or s aft -42 issuppo by imdhas gnu 1 2 a te- M he-Wallspf the noteh i its/Fewer igsides of the teeth are and the1frontand re'a parallel. The end of the arm 43 extends be-- tweeittthe teeth-on thwmn, and; when the shaft 42 is rocked arm peimits the d 'ep' by step, one tooth at a time? the teeth passing, respectively thronghl'the notch. r The of one tooth through the notch acts on the arm 43 ition and, fore the, nextfollowing toot 1 starts into the notch, the end ;of theann is in such osiheel and shaft. The 110 I tor forlettei'tand word spacing. ,TOJIDQVQ the utilized, said motoribeing supportedon a fevers IZ isftr rod 47 supported by arms 48,

when any of the typewriter keys is depressed in v move one spaec leftward.

cooperating parts is such that the platen be engagedt erewith rind not enter the/notch, thereby stoprotating of "the shaft permits the platen to be 'movedstep by step'leftward relative to the i er v platenin this mannera motor tfi-of khown construction and adaptation is the carriage support. Behind thenppervends'of each-group of 42. From the'arrangement of these parts it'ls obvioust-hat the shaft 42 will be rocked and the escape went device operated, so that the-platen The arrangement of the parts comprisin the escapement relative to the levers 7 an will be moved only after the type has struck and rebounded so that the printing will be I 2,'and adjustably sustained by a screw 71.

operating in an armof said bracket.

To operate the. escapement and permit the clear and distinct, and not blurred, or marred as would be the case. were the plat'eiito move with the type held against the ribbon.

platen to move-for word spacing and the like, special' mechanism is provided. In

front of the keys 3 a space bar 49 is carried on stems operating through the base and connected tolevers 51 attached to a shaft motion 56, so that depression of the spacing bar will cause both links to be moved back shaft 42 whereby. the escapement is oper-- 52. A link 53 isconnected to air-arm 54o-n th e'shaft' 52 and 'leadsnto a second link 55' to which it is c'o'nnect'ed'by pin-and-slo-t conward, but permitting the link 55 to be moved independently of the spacing bar. The link 55 connects 'toan arm 57 ,on a rockshaft. 58

at the rear end of the mashihe; Allink'59- connects an arm 60 attached to" the rock shaft 58 with an arm 61 rigid on the rock ated. From the-foregoing it 'is; obvious that operation of the spacing bar will causek-the 'escapement controlling, the platen to operate and therebypermit. the platen to be moved step by step laterally. The plates 23 whioh' carry the platen also support a bar 62 which has-a series of holes 63 adapted to receive. the stop pins 64 which are removable. Bear- 30 ings 65am rigid with-thecarriagesupport.

19 a-nd'a rod orshaft 66 is mounted therein. An arm'67 is mounted on the' shaft 66. and is ,act-uated forward against thebar .62-by a spring 68 encircling the shaft. Said arm has a p rojection extending) under the. bar 62..aga1nst'which onelof the pins 64fwill strike'and thereby stop the platen when the latter has moved the re uired distance. pins may be adjusts to limit right and le t movement of the platenand'yby roper adjustment, will stop the platen in any. desired positions;

Near one end ofthe shaft 42 (Figs., 3, 7 and 11) is a lever 69 pivotally sup orted by a bracket 70 attached to one of the rames spring 72 connects said lever with an arm 73 attached to the shaft 42 which controls the escapernent. The arm 72 is between two screws, oneof which is indicated by 74 and the other by 75, adjustable in arms of the bracket 70. By adjusting the screws 74 and :75, the scope of swing of the lever 48 and the rod 47 can be regulated,- and thetension exerted by the spring 72 can be increased or reduced,- as desired, by means of the screw 71. y

. Near one side of the machine atabulating key is located which key is operable to release the escapement fromthe platen car- ,riage'a'nd thereby permit the platen to shift at asingle movement any. desired distance leftward relative to the operator facing the machine. Said key comprises a rod 76 'shaft'35. A spring 78 encircles said rod bethe platen-carriage or frame. An-arm 83 (Figs. 1 and 153 supported. atits fr'ont end in a bracket 77 attached to the frame 2 and connected at itsrearendto the lower end of the lever 37 which is attached to the rock tween its head and the bracket 7 7 wand assists in actuating the rod-"forward and, through the lever 37, in holding the pinion 39 in 'm'eshwith the rack 29. A slidable collar 79 is on theend of. the rod 76'and against the lei er 37. -A spring 80 encircles the rod in front of the collar and behind another I collar, and thereby makes, the connection between the rodI76 and the lever 37 'yielding but of sufiicient tension that when the 1 rod is pushed rearward'it will oscillate the lever and therebyrock the shaft 35 and so disconnectthe pinion .39". from the rack 29. Thereupon the platen will be drawn left- I ward "andto prevent too rapid movement 5 and sudden stops a brake device is employed 4 to restrain the laten so that'it will move quietly and easi y until stopped by the pin 64 striking the arr'n'67', or-release of the-rod. 76. This brake device consists-of a lever 81'pivoted to one of the arms .34 and; provided with a friction part or brake shoe 82. r on itsupper end adjacent to the bar62 in on said lever extends over the shaft 35 so ,95 J that when the arms 34 arelowered"said. V 1 arm-83 will engage against the said'shaft 35 and thereby ,force the part v82 against 3 the ba'r- 62. The frictional contact of the part 8 2 and the bar 62 will cause the platen 'to move slowly to" position and will prevent any suddenjerksor stops. A-screw 84 operates' through the-arm 83 and} against the shaft'35 and afiords means for adjusting the a brake to conform to different degrees of 106".

down the -arms 34 and thereby disconnects 11:5- the pinion 39 from the'rack 29 and:permits' the platen to move freely ineith'er direction. Alever 87 is secured to eachend of the bar 85 and afi'ords means for manual engage-- ment to turn the bar 85 and thereby operate 1% the lever 86.1 'Such operation permits the platen to be moved manually in either 'direction and to any desired position, in which it may be stopped by releasing the "lever 87, whereupon the spring 68 will restore the lever to'idle position and permit the escapement again to couple up. i

Manually operable mechanism for mov ing the platen, and other mechanism 00- operating with the platen for adjusting the slid-ably mounted on the same, are supported by the plates 23. At the right of the machine relative to the operator facing the machine, an angular lever 88 having the end of one of its arms pivoted to the bar and-the other arm projecting vertically and provided with a handhold 89. An arcuate slot in said lever receives the platen shaft 24 (Fig. 9), and permits oscillation of the lever without obstruction from the shaft. Said lever is sustained byaspring 91. A pin 92 on the lever 88 projects behind the lever 87, so that when the adjacent lever 88 is lowered the lever 87 will be operated, which results in release of'the escapement from the platen by means of the lever 86 controlled by the bar 85 to which said lever 87 attached. This also operates the brake to avoid the necessity of manual restraint when the carriage is moved in one direction by the motor so that the carriage will move gently to its new position when so moved, and tends to prevent too sudden movement in the opposite direction. In the one instance the release of the carriage causes the brake to retard the movement thereof by the motor "and I said lever 88, will rotate the platen one tooth l l l and in the other instance the brake acts to resist the natural tendency to jerk the calriage. It is obvious, therefore, that by operating the lever 88 the platen may be guided manually in either direction and to any desired position. At each end of the platen shaft 24- a ratchet wheel 93' is attached the teeth of which wheels are an ranged suitable f -.line single spacing The leverSS carries a T shaped pawl 94 the lower end of which is actuated forwardly toward the adjacent ratchet wheel 93by a spring The adjacent plate 25 supports a member 96 which has an arm 97 projecting over the top of the pawl 94:. A sleeve 98 is arm 9? and in the under side of said sleeve a notch 99 (Fig; 8). In idle position when, adjusted for double spacing the front armof the pawl 94 engages againstthe sleeve \vithin tho notch and in such position the lower end oi pawl is held away from the ratchet wheel 98 so that the platen can rotate freely'in either direction without obstruction from the pawl. lVhcn the leve'r SS engaged and lowered the pawl 94. engages with the wheel 93 and rotates the platen to feed the paper a distance equivalent to two teeth or spaces and adjusts it forfdoublespace printing. gThe lever 88 is intended .to be engaged aftercach line of printingto move the platen laterally for the north-no; and this rotation of the platen for line spacing is thus automatically accomplished. If-the sleeve 98 be moved endwise the pawl 9% will beheld farther back and iii ll engage with one tooth lower on the ratchet wheel 93 when the lever 88 is operated and, upon operation of l l l l l l l l for moving the rocker, a friction surface lever engaged withthe friction the carnage.

the shifting of the pinion, iv

or space, and'thus feed the paper in single space printing. While this invention is herein illustrated in connection with a front strike typewriter, it is obvious that it may, with great advantage, be applied to other types or species of machines. I am aware that, there may be variations and alterations in the arrangement and combination of thevarious tea- 75 tnres described, and in the manner of their cooperation, without in the least departing ,1 mm the spirit and scope of my inventiom In view of. such possible variation and alter- A ation, I do not restrict myself to identicaI oY features of arrangement, nor combinatio of parts, but

lVhat I claim and ters Patent is- 1. In a typewriting machine, theoombinag i tion of a'carriage, a rack carried theifeby, }a pivotally mounted shaft, an escapement f rotating the shaft step by step, a pinion carried by the shaft and adapted for en- U gagement with a rack, a rocker pivotally' connected tothe shaft, a controlling device .a-

desire to-secure Let the carriage, a brake lever pivotedt rocker, and an adjustable device intipp m between the brake lever andan abutment,. .9

whereby" when the rocker is shifted lease the pimon from ,the raclg' the brake, surface 911 In a typewritingmachine, the combina on of" a" carriage, a rack carried thereby, an escapement mechanism having a shiftably f mounted pinion adapted to engage the we}; pinion, means controlling i e i ifl i be released from the rack, and a c'gtrh ac checking device controlled and actuated, said support and being thereby thrown operation on the release of the pilgliqlfl fibih the rack. In a typewriting machine, the combii-u tion of a carriage, a rack carried thereby, an I. escapement mechanism having a shiftably .f mounted pinion adapted to engagethe rack f .1 a support for said pinion, means control 11g; 15. the shifting of the pinion, where be released from therack, affi ic on the carriage, and a fri(: 'o i1 br: trolled and actuated by said'suppO t nd being thereby engaged with the friction stir H face when the pinion is released fronrthej l' rack. I 4 4. In a ty'pewriting machine, the combinati'on of a carriage, a rack carried thereby, an cscapement mechanism having a shift ably mounted pinion adapted to engage the rack, a support for said pinion, means in said carriage controlling the shifting of the pinion, whereby it may be released from the rack in any position of the carriage, a frica support for said carriage,

tion surface on the carriage, a' bra ke,- and means actuated by said support for' thro'w-"f ,ing}, the" brake i into engagement-"with fth'e'. {fr ctionsurface when the pinion is r el e a'sedf trolling device for moving the rocker, 'a fric tion'surfaceon the carriage and 'a brake" operated. by

supported by the rocker an the movement of the rocker on the release of the pinion from 'the rack effectively to engage'the friction surface,

6. In a typewriting machine, the combination of a carriage,'a rack carried by said carriage, a shaft, a pinion on said shaft, a rocker arranged to support said shaft andthereby hold saidpinionin mesh with said rack, an escapement for rotating said shaft step-by step a friction surface on the carriage, a braite lever ivoted to the rocker, an abutment for sait lever whereby, when said r cker is moved, said lever will be pressed against said friction surface, and a lever in said carriage operable to move said rocker a istance to disengage said pinion from and rack and to press said brake lever rgain'st said friction surface, substantially as specified.

7. In a typewriting machine, the combination of a carriage, a rack carried 'by said a shaft, a pinion on said shaft a rocker supporting said shaft and thereby holding said pinion in mesh with said rack,

, an escapement for rotating said shaft step by step, a friction surface on the carriage, a brake lever pivoted on said rocker, an

, abutment for said lever whereb when said said rack and to press said against said friction surface, a lever "rocker is moved, the lever wil be pressed against said friction surface, a lever for moving said rocker, and a key connected to said last-named lever whereby said rocker may be moved to disengage said ginion'from 'rake lever against said friction surface, substantially as specified.

8. In a typewriting machine, the combination of a carriage, a rack carried by said carriage, a shaft, a pinion on said shaft, a rocker supporting said shaft and thereby holding said pinion in mesh with said rack, an cscapement for rotating said shaft step by ste a friction surface on the carriage, a bralite lever abutment for said lever whereb when said rocker is moved, the lever wil be pressed or moving said rocker, and a key connected to said last-named lever whereby said rorltpr ivoted on said rocker, an-

i-m'ay be moved to disengagesaid pinion from said rack and to press said rake lever -for'actuating and retaining said key in' idle 'position, substantiallyIa's speeified.-

1" 7 91 111; a typewriting machine, 'the' coinbination ofa carriage- Ia rack carried by said I carriage, "an escapernent I jmechanisin having 'a" 'shiftably mounted pinion adapted to engagesa'id rackf-a' support'-'for said pin.- ien', a spring, for actuatingsaid' pinion into enga gemeiit awith said. l-rack,f; means 0 sa-id pmi'on" may be' released from said. rack, 'a" frietiodsurface onflthe carriage, a brake. and means actuated by'said support for throwing the brake into engagement with saidfriction surface when said pinion is 'released from said .rack, substantially as specified.

10. In. a typewriting machine, the combination of a carriage, amok in said car- .riage, an escapenient mechanism having a shiftably mounted pinion adapted to engage the raek, a' support for said pinion, means'actuating said pinion into engagement with-said rack, means in thecarriage for controllin the shifting of the pinion to release 'sai pinion from said rack, a friction surface on the carriage, a brake, and means actuated by said support for .throw'ing the brake into engagement with the friction surface when the pinion is released from said rack, substantially as specified.

11. In a'typewriting machine, the combination of a carriage, a rack carried thereby, a )ivotally mounted shaft, ,an escapement or rotating the shaft step by step, a pinion carrie by the' shaft and adapted for engagement with said rack, a pivoted rocker supporting said shaft, a over for moving the rocker, a friction surface on the carriage, a brake supported by the rocker and operated by the movement of the rocker'on therelease of the pinion from the rack, effectively to engage the friction surface, and means forholdingsaid brake indifferent ositions when said rake is idle, snbstantialliv as'specitied.

12. In a typewriting machine, the combination of a darriage, a rack carried thereby, a pivotally mounted shaft an eseapement and motor for rotating said shaft ste hv step, a pinion carried by said shaft an adapted for engagement with said rack, a pivoted rocker supporting said shaft, a spring actuating said pinion into engagement with said rack a lever mounted in the carriage, means whereby said lever,may move said ,roolter and disengage said pinion from said rack,a friction surface onthe earria e, and a brake supported by said rocker ant operated; by the movement of said fagai'nstjsaid' frictionsurface,v and a spring y t-rolhng'the shiftingof the pinion whereby-r ion rocker on the release of the pinion'froin the I 13.' In a typewriting'machine, the combi-' nation of a carriage,-a rack carried'by. said carriage, a shaft, 0. pinion on said shaft, a rcckshaft, .a'rocker' carried by said rock shaft and sup orting said firstrnamed' shaft and 'thereby iiolding. said pinion in mesh with, said-rack, an escapement and motor for rotating saidfirst-named shaft step by step, a friction surface on the carriage, a brake lever (pivoted on said rocker, means whereby sai brake lever will be pressed against said friction surface when said rocker is moved to release said pinion from said rack, a lever for moving said rocker to release said inion from said rack, and a key connected to said last-named lever whereby said rocker may be moved to disengage said pinion from said rack and to press said brake lever against said friction surface, substantially as specified.

14. In a typewritmg machine, the combination of a carriage, a motor for moving said carriage, a rack carried bv said carriage, ashaft, a pinion on said shaft a rock shaft, a rocker carried by said rocit shaft and sup orting said first-named shaft and thereby .iolding said pinion in-mesh with said rack, a spring controlling said rock shaft to hold said pinion in mesh with said rack, an escapement for permitting said motor to rotate said first-named shaft step by step, a friction surface on the carria e, a brake lever pivoted on said rocker, 9. ever fo r-moving said rocker torelease said pinion from said rack, a=key connectedto said lasts-named lever whereby said rocker may b'e'moved and said inion disengaged from said.-'rack,and an a utment for said brake lever; lwhereby, whensaid inion is disengaged from said rack, said rake lever will pressed against said friction surface, substant-i'ally as specified.

15. In a typewrit-ing machine, the combination of a carriage, a rack carried thereby, a shaft, a pinion on said shaft, a rocker sup:-

porting said pinion in mesh with said rac a spring actuating said rocker to Qiold said pinion 1n mesh with said rack, an escapement and motor for rotating said shaft step by step, a friction surface on said carriage, a brake lever pivoted on said Maker, a lever for moving said rocker, a key connected to said last-named lever whereby said record may be moved to disengage said pinion from said rack and to press said brake lever against said friction surface, and an adjustable abutment for said brake lever whereby said brake lever will be pressed against said friction surface when said rocker is moved, substantially as specified.

In testimonv whereof, I hereunto aiiix my simiature to this specification this 19th day of November, 1906, in the presence of two witnesses.

WILLIAM H. CLAYTON. a 8.

Witnesses:

Orro A. MoKimvi-n', Ni-zr'rin Wmsrox.

Copies of this patent may be obtained tor ave cents each, by addressing the Oommiuioner oi ratenti, Washington, D. 0."

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