US1138992A - Type-writing machine. - Google Patents

Description

H. H. STEELE.

TYPE WRITING MACHINE.

APPucATmN man 5.24. 1913.

Patented M ay 11, 1915.l SHEETS-SHEET I.

INVENTDR: Jia/.Mw

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HISATT-cmm-:S

H. H. STEELE. TYPE WRITING MACHiNE. APPLICATION mso fzs. 24. 1913.

- Patented'May 11, 1915.

2 SHEETS--l-SHEEIl 2.

.HISATTDRNE-v,

' VHERBERTH. STEELE, OF MARCELLUS, NEW WRITER COMPANY, F SYRACUSE, NEW

"UNITED STATES `raiTEnT' oFF-Ien.

YORK, ASSIGNOR TO THE MONARCI-I TYPE- YORK, .A CORPORATION OF NEW YORK.

TYPE-WRITIN G MACHINE.

. j 2 To all whom it mag/concern.'

le it known that I, HERBERT `H. STEELE,

' citilzen ot' the United States, and resident of lllarccllus, in the county of Onondaga and State of New York, have invented certain new and useful Improvements in Type- VWriting Machines, of which the following -a specification.

' VMy invention relates to platens and paper feeding mechanism for typevvriting Inaehincs and its object generally is to provide improved means for controlling the part-s of' a divided or sectionalv platen andthe work sheet or sheetsfed thereover. l.

While the principles of myvinventlon are .applicable generallysaid invention relates' specifically to improvements on the inven tions shown in my 'Patents Nos. 1,052,021`

' and 1,052,186, both granted February 1,

4 so doing it is possible to turn the platen ,gether and. at the ln carrying out my presentinvention I provide, as before, for' automatically unlocking that. one of the ,platen sections which is normally locked against rotation and for .concurrentlyv coupling or connecting the two platen sections s o that they may be turned or spaced equally together, but in the.

vpresent instance I also provide/in addition for yvarying the connection between the two platen sections as for example by shiftable gear mechanism soas to `vary the relative extents of simultaneous movement and the relative ratesot speed of said sections. By

tion on which the record sheet is fed to a less extent and ata slower rate than the vother section so as to obtain a greater condensation of the record entries.

means are provided by the present invention for rendering inoperative at will the platen Further,

lock ot' the prior constructionand for concurrently coupling'the sections together so that at a line spacing operation they may in all positions of the carriage be turned toL saine rate of speed, thus providiingr for their unrestricted usc'as a single unitary platen. l n

lo the above and other ends my invention consists in the 'Features of construction, coinbinations of devices and arrangements ofy parts hcreiim'fter described and particularly pointed out in the claims.

ln the accompanyingdrawings, Figure 1 is a fragmentary side elevation of the upper part ot' a` Monarch typcwriting n'lachine Specification of Letters Patent. v

Patented May 11, 1915.

Application led February 24, 1913. Serial No. 750,27;

embodying invention.` Figs. 2 and '3 are respectively a,v ,ide` and front elevation `partly in section of the improved coupling devices for variahly connecting the parts of thesectional platen. Fig. is a fragmentary vertical sectional view taken longitudi- --nally of the platen through the axis thereof,

Said end bars provide bearings for a platen axle 9 on whichvare coaxially mounted 'end to end the tuo parts or sections of a divided or, sectional platen (Fig. 4). The left-hand platen or platen section 10 comprises a core 11 of Wood and va sheath 12- of rubber composition and has operativ'elyconnected to its left-hand end aline spacing ratchet wheel 13. Coperativewith the ratchet Wheelisa pawlla pivoted to an arm 15 which is supported loosely on a roclrshaft'l` mounted on the end bar 7i Motion is communicated to the rock shaft bythe usual finger piece or line spacing handle 17 andis transmitted from a finger 18 on said shaft to thepawl 1l which is' engaged by said nger. The

usual spring mounted `roller detent (not shown) cooperates with the ratchet Wheel 13'. The pawl mechanism is comprised in the usual line spacingv devices of the Monarchmachine. Secured to the right-handend of section I0 as by. wood screws 19 whichscrew into the core 11 is a platenhead 2O yprovided with a long external hub l2 1 anda shorter internally 4extending hub-22 A cross pin 23 passingtransversely through the hub 2lil and `a.xle9 secures .the kplaten head 2O andthe platen section l0 to said axle.

and a sheath 2G of rubber composition. section 24'has secured to the left 'end of its core 25 by ywood screws 27 a platen head 28 .provided with an internal hub 29 which bears rotatably on the hub 21.. It will be seen that the. two platen heads 20 an'd'23.

The right-hand platen or platen sec- I tion 2l is mounted tothe right ofY the platen 'for section 10and comprises ay wooden core f 25 i. The platen Y `v1525 member or twoart gear w, eel.v` Detent eis bored out-and-bears rotatably the body f {"vices are provi ed for# maintaining a fixed IKortion of ashoulderedscrewmlthelefti 2 i s 1,138,995;r

chother and one has apart on which cured; to said hub by a screw 48.

l. abut I f the/051er is .adapted to bear, thus providing The other-or free end of the spi'ingf'projects r fora to sagliisminimized, this constructlon being is convenlent for manipulation.; Near itsV 5 substantially like that disclosed in my pendfreel end saidspring has secured to it a ing application, Serial' No. 668,869, .filed locking1 pin 49. :which fits slidably in a hole J anua'ry 2, 19O5.", l The two sheaths abut in the ub 39 al'ld is adapted to engage with against each other attheir inner-ends, proeither of two holes or de ressons 50 I'and viding a practically continuous surface from 51 formed in the shaft 9. Fig. 4 the lockone `end to the other of 'the divided laten. ing pinis shown engaged' with the holeor A long collar .30 surrounding the aft 9" lock1ngdevice50 an'd thereby the position va'fbuts at its left-hand end against the hubfl` of the gears 38 .and 44glengthw1se of the i inthe end bar 8, .being ,securedto sald en pulling-.outward the *47*` of the bar by va screw 31. yWood screws 32 secure a `spring '.forkhand'operated' devicevk 47 Vhowplaten head 33"to.the rightlhand end of the ever, the pin 49' mayf"be i' platen section, 24, said platenhead belng theyholeOso tha the` two-part.f:.,or` double itablebearinginwhich anytendency outward .providing a finger piece 47" that i and extends rightwardthrough an openingshaft 9 1s maintainedlix'ed.- By. lifting or n provided with an outwardly extending gear 38,44 is be slid otwgirdalcmg sections against movement and for coupliligf'vpin 49 will engage wit the hole Qllock the se or connecting the two platen sections t0, lthe two-part gear-wheelin'fanewgrelatioax-` turn together comprise a gear wheel 35 hav-.f ship len hwise of the shaft 9. Inl'eith'er-of` ing '9111 inwardly extending hub 36 which these re ationshi` s the two-part rwheel* 'i bears,v on, the co r 30 and in turn afordsja 38, 44 will-at Val times turn wi ,"the left.

f Support for the hub 34 which surrounds-it. lmnd platenlo the (xmstlmtl comn, be i.

The gear wheel 35 is arran d inside'ftheI A,tween thejfparts' being made throughl'the end*l bar 8 and' rigidly secure to the axle 9. The gear w-heelgl. 35, on ,1 thegiother hand platen sectlon b a `screw 3'( whlh .l hand, connectedthrou'gh-gtlguserew 87`- passes` through .the hu 34 andengages'in withjfthe hubofthe 3 fast on a tapped'opening inthe hub .36. 'Outside that saidplgten tthe endfbar 8 and-abuttn ythe-end of the -"Y d. y

sleeve30fis'a second gear w eel 88 providedy n y with a hub 39 formed with ya groove40 which coperates with a short rib or splm 41 havinginturned ends which are in holes in theshaft 9. Said spline is thor/eI y by fixed tothe shaft 9 between the' sleeve y y 30 and the hub 42 on the usual platenv i "r' I intoand outf '91,; wheel 443; The gear wheel as` is fo at whether coupling@ A l all times to turn with the shaft 9 The coupling means inthe presentl of the spline connection lthe'rev'vi 'ffwhie comprise, as shown clearly in 3; saidy connection permits-the gear. wheel 88 4, a pinion 52 having an "elongiv n, fghuhliu to be slid along the -shaft- 9 and loi/rgitudi` to the opposite end of L5 nally thereof so as to var its relationship a pin 54 a. pinion 55 hav'lnfthejnumf v therewith. The gear whee 38 is offfthe same ber of teeth and also ibthe pin.

l diameter as the gear wheel 35 has the ion' 55 a second and larger@ same number of teeth. Supported on the air of pinions 55 and-58 hub ,of the gear wheel 38 yis a/second and ouble or twmpart pinion'. 50 smaller gearwheel 44 havingajffewer num- 55 andv 56 are adapted tojmeshffl` .u brjof teeth. The gear whee 44 has a hub withthe gear whee1s35, 38 andi; I i

'4 which is secured b a pin Llationship to the hu 39. y of gear wheels y38an`d44 o J'r te as a sin le`=`\" hereinafter appear.

vus the pair are' never `operativeiat thesalhe hun Thale] Millie g relationshipv between .the ""shaft'f 9 and the and end o'f which is y t'rocky'two-' part gearwheel 38, 44, said detent def ing member, or movable rame.5'8, fthe right- Y f vices permitting a relative adjustment of hand end of said screw being and ce? the vparts so that such relationshipmay,l be threaded and screwing into an angler ex- `varied and the-operative' gears changed. As -tension 59 at the lower .part of rock- `appears, from Figs. 2 vand 4y thesel detent in g member. A nut 60 prevents displace devices comprise al C`shaped spring VVV47 ment of said screw, said nut being t (readed which partly surrounds thehub `3,9 near Aits onto the reduced end thereof outsidelof the 62"; outerv end, one end gof 'd "sprnggbeing seangular extension 59. ',Ihe rocking `'n fixed remthe two 'parts f thel two-part u biere-mm i ,l di

f and after-said member is released said spring 'er movable frame'-58 1s providediwith a section 24.

hub 61 whichbears on a rod 62f, saidv rod ypreferably being thefrod or rock shaft which operates to Vrelease' the feedrollers ordinarily'providedfin the machine. A setV of *feedrollers,- -paper' feeding or pressure devices 63 and 6i may be'provided'foil cooperation with the platen section l0 and4 spring 75 and of an actuating device mountsuitable paper feeding or'pressure devices may coperate .with the right-hand platen If a continuous work sheet or strip-fis to be employed in connection with the rightf j `hand-platen section as in `my `Patent No. 1,052,021,l then pressure'. devices such as-'65 may beA provided to draw such continuous sheet from the supply roll and feed it over said vplaten section. Such feed-or pressure .rollers for the -two platen sections which may l coperate with othersuitable devices,l be' of ordinarychara'cter including a'paper .'table' 67, forl guiding and controlling the Awork sheet orsheets. The member orA frame 58 has an upward and forward extension or arm 68"' which terminates in -a tooth l69 y that isA laterally'off-setinto the plane ofthe gear wheel and so. that it may coperate therewith. Said tooth is normally engaged with said gearfjvheel asfsh'own in Fig. lv and locks it and the right-handplaten `section'against rotation. At such times the member or gear device lcomprising the pin,- -ions 52, 55 andfit) is normally disengaged or inoperative, and to preventuaccidental j position -in any suitable way as for example,`

' maintains vthe locking tooth v69 turning of vsaid member la spring detent 70 is provided," saidmemberv being bent at 71l at i-ts lower free A'end to engagebetween the teeth' vof lthe pinion 52 at 'thel back thereof ias shownv in Fig. 1. The'upper end Vof the by a screw 81 to a bracket arm 82 i'iXed to the lower trackway 4l screw detent 70 is bent forward ,and provided with a slot 72 which receives a screw 73 by which member orframe 58. p

As shownin Fig. l thefre'ar edge 7i of the rocking member 58 is normally substan! tially vertical, it being maintained in this the detent is thusl adjustably secured. to the by aspring75 which as shown in :Fig 3 is coiled around thev left-hand portion of the hub 61, vone end of said spring being secured to themember 58 and the other end beingv anchored or hookedaround the shank o f. aheaded screw 76 which engages ina collar 77'and secures the. same in set relationship with theshaft 62..1 This spring engaged with thegearwheel v,35. 4 Vhe'n the lower end of 1 the member'or frame 58 is .swung forward i the tooth 69"rengages with lthe gear wheel- 35. The member 58 is' held from leftward in thema-nner presently to be described, its movement will be resisted by the spring.

will swing said lower end backward until movement` lengthwise of the shaft 62 by the collar 77 which coperates with the left-handv y end ofthe hub 61,while a second collar 78 ment thereof along theshaft 62. The collixed to theshaft ftothe right ofv the member 58will prevent rightward move` lars 77 land v78, vhowever,- permit-the frame 58 to turn or move freely to limited extents on its support62 under the actionl of the ed ona stationary part of the machine in tion 'and couple it with the left-hand platen only on'the left-hand platen section f whichv will turnindepen'dently ofthe rightfhand platen sect-ion', the'l'atterfremaining quies-v orderto unlock the right-h`and platen secj section. It is obvious that when the locking toot h69 is in operation and the platen sections-are disconnected sa' line spacing oper- 8'0 "ation of the finger piece-17 willbe effective cent dl'iring line spacing operations of the` 8'5- .left-hand platen section so long as theilock 69 is effective and the' two platen sections vare disconnected. `This-will be the case, under '1 the conditions heretofore described, ,so long .v las the left-hand platen section is within the ield of the types and the right-handplaten section is outside. the printing field.l In the present instance theactuating'device afore- "said for effecting the unlocking of the righthad section and the coupling thereof to'the' left-hand section `is in 'fthe' form of. al camA bar'79 which is arranged to intersect'the angular in cross section and -is suitably securedasby' screws 80 at its left-hand 'end portion to thetop plate Q. Said bar,v howpath of the edge '74 ofthe locking member I 'I 58. Said cam bar as shown in Fig. 5'is` l ever,'eXtends rightward beyond the top plate audits overhanging portion may be secured rigidly field of .the Atypes the 'edge 74 will engage with the stationary curved device or cam 84: with the result that as the leftward `movement of the platen continues the edge 74 will be forced forward, swingir'1g` .the member 58 on itsaxis. This swinging movement disengages the .tooth 69,'unlocking the right-j hand platen or section which it previously had been prevented from turning during the operations of the line spa'ce handle or lever the pinion 52 into meshwith the gear wheel and assuming that the parts are arranged as in Fig. 4 Will-swing the pinion 56 into 'mesh with the gear, wh'eel 44. `The pinion Also such swinging movement carries scribed the platen or section 24 will bere-A leased from the locking or detent devices which normally prevent it .from being turned and Will be connected through the gear wheels 35 and 44 and their coperating pinions with the left-hand platen section. The arts are'arranged so that the pinion 52 will partly engage with the gear 35 before said gear is entirely freed from the control of the locking tooth 69. The position of vthe parts following the described opera- 'tion is illustrated in Fig. 2. The actuating device 79, 84 is'yarranged to effect the results described as the right-hand laten section enters the printing field, an it will be understood that during further leftward movement of the two-part platen said .device or cam fbar will voperate to maintain the pinion's"engaged` with their gears as illustrated in Fig. 2 so that a turning or line fed over the right-hand section of the platen,l

spacing movement communicatedto the'lefthand platen -section from the regular line spacing devices will be participated in by the right-hand platen section. Owing, howeve-r, to the differential gear connections between the two platen sections the right-hand platen section will turn at a slower rate and to a less extent than -Will the left-hand section. In the present instance the parts are so proportioned and related that if a line 'spacekmovement of tWo units be communicated to the left-hand platen section by operation of the linger piece 17 the correl -spondingv movement of the right-hand sect`ion`Will amount to a little more than a single Aunit of line space movement. This feature of my present invention enables it to be employed to advantage in various-v kinds of commercial typevvriting such as railroad Waybilhng, or accounting, or the like, wherein a series of Waybills or'invoices. are to be Wrltten and a record 1s to be kept l of certain data from each bill. In such cases the Waybills or bill sheets or invoices may I, be fed overl the left-hand. platen section while the recordv for each bill which in' cludes all -data that may be essential may be Written in a single line on a record'sheet said record sheet being if desired a continuousA strip or web. By employing my present invention in the mannerdescribed the lines on the `right-hand or record sheet arespaced a little more than a single'line space distance apart, although the line spacing de- `vicesincluding the paWl 14 A4and the finger piece 17 are set for double line'spacing and such double line spacing or .two units of line-space movement will be communicated to the left-hand platen section at times when the rightfhand platen section is receiving slightly in. excess of a single imita line space less than two units for the reason that the bills are usually press copied and it is not feasible to make a good press copy when the spacing is closer than double line spacing. On`the other hand, it is preferable not to reduce the line spacing on the record sheet quite to a single unit for the reason that in .commercial typewriters where billing numerals are employed certain characters would with the usual single line spacing overlap at their tops and bottoms.

If the nature of Work is such, as is the case in some systems ofcommercial book-keeping, that it is desirable to feed or rotate the right-hand platen section unjformlyfvvith the left, it is only necessary as a preliminary to change or shift the pair of gears or two-part gear Wheel 38, llir to the right in the manner explained and to reset said two-part Wheel or pair of gears by causing the pin 49 to engage With `the hole 51. When thus reset the gear Wheel 38 will be oppositeto or in register with the pinion 55 While the gear Wheel 44 will be out of register With or in a different fore and aft plane from the pinion 56.' Consequently When the frame 58 is swung forward to couple the platen sections, movement will be communicated from the left-hand platen section to the right-hand platen section through a gear train comprising the 55 and 52, and the gear Wheel 35. As a result, the two platen sections will be spaced or advanced simultaneously andto uniform extentsun'der a single actuation of the fin 'ge/r p1ece17 when the right-hand platen section-isdn the printing field.

"7W/Vith the locking devices COIIIPI'Sing the locking tooth 69 in operation it is not possible to rotate the right-hand platen sec; tion with the left-hand platen section under the adjustment of the parts last described except at times when the right-hand platen section is opposite the printing point, since at all other times the locking tooth 69 is 'in engagement with the gear wheel 35 andl locking tooth 69 is held out of action and the connecting devices comprising the pinions 55 and 52 are maintained 1n mesh with their cooperating gear wheelsj38 and 35.'

ear 'Wheel 38, the constantly connected pimons- Y Such means comprise an arm 85 pivotedat '86 to anextension 58a on the member 58,

said arm extending forward and terminating in en off-set finger piece 8.7. 'At the rear vof itsl pivot the'arm '85 terminates in a Y downwardly curving nose 88 whichis en-Y gaged by the upper rear kend vof a leafv .spring 89, said spring being riveted at QQ.

, or otherwise secured to the rear ofthe eX-s tension 582g The lower edge of the arm 85 is provided near its forward end with. ay downwardly. extending 1ockingtooth 91 which is adapted to coperate with a notch- 92 cut 4in :a rod 93 mounted on the endba'rsy of the platen carrier land corresponding to the usual paper fingerrodof the machine. Normally, however, the spring 89 coperatesfwith the nose 88 to .hold the locking tooth 91 up 'out of engagementwith the notch 92 as shown infFig. 1.v -ifVhen-it'is desired to release the right-hand platen section from control `ot the locking devlce 69,

the operator pushes rearward against gthe finger piece 87, thereby swinging vthe mem v bei' 58 on its pivot so that the lockingtooth 69 is disengaged from the gear wheel 35 and the gear wheels 3,8 and 35 4are connected come and the tooth 91 may be caused to engage with the notch'92 as shown by dotted f lines in said Fig. 2. This operation locks the rocking member or'fraine :3 8 in fthe Fig. 2

positionand itisobvious that as long as'the lockingdevicesl and 92 remain ei'ectiyef the platen Sectionsfwill at all timesA be coin? v- -miinicatedto o ne platen Will'be 'communi-'- l40' nected and rwill receive simultaneously uni toimfextents ofi-citation or iine'spaCe m0ve Aments. fVhen lit may bedesired again to,

. 'make-use' of the platen sections' separately --thisv may be donev 4by pressing upward against vthe.v inger piece 87; the lockingv tooth 91 ,willbe disengaged `from--the-notch' 92 and the spring 75 allowed to'iestore the member 58 to lthe Fig. -1 position. Ofcourse, the manuallyv operated locking device 91 may be employed if found desirable when4 the changeable gearsiiresetas in Fig. 4.5.

My present invention' while particularly adapted for-lise in railroad waybilling work Writing :various other styles of commercial typewriting.- `The invention as described vembodiesxa platen composed of Separate rotary sections or diyisions, twoin number in the present instance, which may berega'rded as-separatepla-tensproviding for sepafrately controlling different Work. sheets.vk

By'aiitomatically coupling the platens or sections, said sheets .may be advanced to` gether equal or diierentextents ata single line spacing operation. The. variation in "by Letters Patent, is:-

said.' platensl to the same extent, certain vextent or to diferentextents.

the extent of line 'spacingadvance orlmovement is effected in the present case byVary-- ingor changing certain elements'in a tra-in of gears or coupling means, these vchangeable gearsor elements 'beingsettable by handit tov effectI such ,variation. A- WVhen notV coupled' together oneofthe plateiis orsections islo'cked and will remain .quiescent i whentheother is turned.

Variousv changes? may bemade in saidI i-nveiition'without departing. from the spirit andscope thereof. What I claim as new and desire to secure "1. In a typewritingmachine, the combil80 nation of two platens, line spacing means vfoi-Lorient the platens, means for 'automati-v l cally communicating line spacing movement to the other platen when said line spacing means are actuated, and lin'ean'sffor Vary- 85 ing the extent ofsaidfline spacing movef ment Athus.' `automatically v'communicated' while the operation of said,l means remains constant.

line spacing 2.1111 a typewriting machine, `the combination of 'a divided platen, line #spacing Imeans for one of the sectionsofthe platen, means for automatically communi-eating line spacing movement'to, another section;

of the platen, and means vsettable/by handl for varying the" el'xtent-of`v said line spacingl movement thus 'aut'oinatically/ communicated while vthe' operation of said lineuspace ing means 'remains constantf'.

In a typewritiiigmachina-"thecomble 10Q i nation oftwoseparate platens, meansl oper-4r ating 'aiitoniatical/ly'to couple/'said .platens togetherjsothatl turning i movement comcated to theother platen, andmeafns/for 1.05

v,varying certainlof the vel'eiiientso'f lsaid cou# nation of two separate .platens, and means eiiective at a single operation --for turning 4110 of the-elements of. said means. being variable s o thatboth said platens will be turnedbut *i ,I

to dii'erlentextents at' a single operation.

, 5:;'In a Htypewriting machine, the comb- 115 i nation of af platen comprising a plurality of'v rotary sections, andi means' operative by a.' single linger piece for at will turning saidy sections simultaneously either to the same,l

' (i. In a-typewriting machine, the combination ofa two-part rotary' platen, line spacing mechanism for turning oneof said parts', means operative luy-said part laslit is turned for. tifansmittinga different extent 41254 of turning motion tothe other-'of' said parts,

andmeaiis for rendering said,transmitting? means inoperatiyeto transmit motion to the;l l i' second of said partsandfor simultaneously locking said second part. against'rotation. v ,130 -I 7. In a typewriting machine, the combination of two separate. platens, a carriage on which said platens are mounted, means operating automatically to couple said platens together so that turning movement communicated to one platen will be communicated to the other platen, said coupling means operating automatically at a predetermined point in the travel of the carriage, i

nation of a traveling carriage, two'separate platens thereon, means operative by the traveling carriage to couple said platens together, and means for varying certain of the elements of said coupling means.

10. In a. typewriting machine, the combination of two Aseparate platens, means operating automatically to couple said platen together, said means including coupling devices mounted independently of said pla'tens lout operatively connectihle with both platens, and means for at will varying certain of the elements of said coupling de' vices..

11. In a typewriting machine, the combination of a rotary platen comprising a plurality of sections, and gear connections for connecting' said sections, said connections comprising changeable gears shiitalole to vary the relative speed of said platen sections.

12. In a typewriting machine, the combi# nation of a carriage, a platen comprising two coaxial rotary sections arranged end to end, paper feeding means associated with each section for feeding separate sheets ovei` the diiferent sections or a single Wide sheet over both sections, and means for simultaneously turning both sections at different rates of speed in order to feed separate sheets different extents, said meansheing adjustable to turn both platen sections in unison to the same extent to feed a. single Wide sheet-uniformly over both of said sections.

13. In a typewriting machine, the combination of tvvo separateplatens, line spacing devices, devices for holding one of said platens against rotation, means operating automatically to render said holding devices inoperative and to couple said platens together, and means for at Will varying cer- .tain of the elements of said last recited means to vary the ei'l'ect of said line spacing devices on one of said platens.

14. In a typewriting machine, the combination of a platen,l line spacing devices operative to turn the same, a second platen, a` lock normally preventing the rotation 0f said second platen, means for unlocking said lock and connecting said second platen to be operated by said line spacing devices, and means for varying certain of the elements of said last named means to vary the, eifect of said line spacing devices on said second platen.

15. In a typewriting machine, the combination of a platen, a toothed Wheel con-l nected therewith, a second platen, a" second toothed wheel connected with said second platen, means movable automatically into and out of engagement with said toothed wheels for coupling and uncoupling the same, and means for varying cert-ain of the elements of said coupling means to vary the action ot' one wheel on the other.

1G. In a typewriting machine, the combination of two separate platens, gear devices for connecting said platens to transmit the movement ot one platen to the other, and gear changing means :lor shifting certain of said devices to canse the platens to move simultaneously together to the same extent or for at will causing the platens to movesimultaneously differentially.

17. In a typewriting machine, the combination otl two separate platens, gear devices tor connecting said platens to transmit the movement otl one platen to the other, gear changing means for shifting certain members included in said devices to cause the platens to move simultaneously together l to the same extent or for at `will causing the platens to move-dilterentially at the same time, and means operating automatically to move certain members included in said gear devices into and out ot operation to connect and disconnect the platens.

18.111 a typewriting. machine, the combination ot' a rotary platen comprising a plurality ot' sections, means for coupling said sections together to turn in thesame dirc'ctioirhut at different rates of speed, and

.means for rendering said coupling means. inoperative so that one ot' said .sections may be turned while another remains quiescent and for simultaneously locking said quiescent section' positively against rotary moveL ment.

19. In a typewritingmachine, the combination of a sectional platen comprising.

two co-axial rotary sections arranged en to end, a line spacing ratchet wheel connected to one of said sections, a hand actuated pawl cooperative vwith said `ratchet wheel, a gear Wheel constantly connected with one of said sections, a pair of manually shiftable gear Wheels of different di-v ameters constantly connected with the other of said sections, a movable frame, connected pinions supported on said frame, and means for automatically moving said frame tq v throw said pnnons into and out of connection with said gear wheels.

4pinion coperative with said first named ed thereon, another gear gear wheel, a pair of pinions connected to the first named pinion and cooperative with said pair of gear Wheels, and means for effecting a relative movement between said pair of" gear wheels and said pair of pinions in a direction parallel with their axes to bring gear wheels into position to be engaged by their associate pinions.

2l. In a typewriting machine, the com-l bination of two co-aXial platens, a gear wheel connected to one platen, a pair of gear wheels connected to the other platen, a pinion coperative with said first named gear wheel, a pair of pinions coperative with said pailof gear wheels, said pair of pinions and said first named pinion being connected, vmeans for efiecting relative shifting movement between said gear wheels and said pair of pinions in a direction parallel with their axes to bring at Will one or another of said pair of gear Wheels into position lto be engaged by the associate one of said pair of pinions, a movable frame on which all of said pinions are mounted, and means operative automatically to move said frame and bring said pinions into coperative relationship with said gear Wheels, the relative shifting movement being effected independently osaid automatically operating means.

22. In a type\ifriting machine, the combination of a, carriage, a shaft supported thereon, two platens mounted end to end on said shaft, a pair of gear wheels connected to turn with said shaftand slidably mountwheel co-aXial with said pair of gear wheels and connected to 'turn with one of said platens, the other of Asaid platens being fixedly connected with said shaft, a pair of pinions adapted to mesh with said pair of gear wheels, another pinion adapted to mesh with said other gear wheel, said pair of gear Wheels being shiftable by hand along said shaft topredeter mined positions to, bring them alternatively into register with the corresponding ones of .said pair of pinions, and devicesfor retaining said pair of gear wheels in either-bf their predetermined positions. 1"

2 3. In a tvpewriting machine, the combiat will one or another of said pair of nation of a two-part rotary platen, gears for connecting the parts of controlled means for moving said gears into mesh, and locking devices for maintaining said gears positively in operation.

In a typewriting machine, the ombination of a two-part rotary platen; gear devices fer connecting the parts of said platen; a movable frame on which certain of said means for 'controlling' said lmovable frame, said manual means comprising an arm pivoted to said movable frame and provided with a finger piece, and a spring for determining the normal position of said arm.

25. In a typewriting machine, the combination of a carriage; a two-part rotary platen; gearf--devices for connecting the parts of said platen; a movable frame on which certain of said, gear devices are supported; manual means for controlling said movable frame, said manual means comprising an arm pivoted to said movable frame and provided with finger piece, and a spring for determining the normal position of said arm; and locking devices for holding said frame in` position to maintain the gear devices thereon in peration, said locking devices comprising a locking tooth on said arm and a coperative locking device on the carriage.

2G. In a typewriting machine, the combi- 9 nation of a two-part rotary platen, couplingr devices for connecting ,the'parts of said platen, automatic means for rendering said coupling devices effective, and hand controlled means also operative coupling devices effective.

27. In a typewriting machine, the combination of a two-part rotary platen, coupling devices or connecting the parts of said platen7 automatic means coupling devices effective, hand controlled means also operative to render said coupling devices effective, and locking devices for maintaining said coupling devices in operation.

28. In a typewriting machine, the combination of a carriage, a two-part rotary platen, coupling devices for connecting the parts of said platen, said coupling devices being movable into and position, and hand controlledV locking devices for maintaining said couplingdevices in operative position in all positions of said4 carriage.

Signed at Onondaga and State of New York, this 20th day of February A. D. 1913. fg"

- HERBERT H. STEELE Witnesses l H. BARRY, Bassin KETTELL.

said platen, hand 6 to render said for rendering said 10F out of operative 4 Syracuse, in the county of

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