US879107A

US879107A - Type-writing machine.

Info

Publication number: US879107A
Application number: US31647106A
Authority: US
Inventors: Wellington Parker Kidder; Charles W Sponsel
Original assignee: PARKER MACHINE Co
Current assignee: PARKER MACHINE Co
Priority date: 1906-05-12
Filing date: 1906-05-12
Publication date: 1908-02-11
Anticipated expiration: 1925-02-11

Description

' PATENTED 11111.11, 1908. w. P. KIDDBR @L c. W. sPoNsBL.

TYPE WRITING MACHINE.

APPLICATION FILED MAY 12, 1906.

w/rNEssEs.'

PATENTED EEE.11, 1908. w. 1 ..K1nnEE a; c. w. SPONSEE.y

TYPE WRITING MACHINE. nAPPLICATION FILED H1112, 1906 4 SHEETS-SHEET 2.

- W/TESSES:

No'. 879,107. PATBNTED FEB. 1l, 1908. W. P. KIDDER 6: C. W. SPONSEL.

TYPE lWRITING MACHINE.

APPLICATION IILED IA'Y 12. 10W.

a. suus-sum 3.1

PATENTED FEB. l1, 1908, W. P RIDDER 6r C W SPONSEL TYPE WRITING MACHINE. l Arrnxonxon nun un 12, nos

4 annu-snm 4.

-w -mE UMTED srnfrns Parana? formen.

WELLINGTON PARKER KIDDER, OF BOSTON, MASSACHUSETTS, AND CHARLES W. SPONSEL,

" OF lARTFORD, CONNECTICUT, ASSIGNORS TO PARKER'MACHINE COMPANY, OF BUFFALO,

NEW YORK, AZCORPORATION OF NEW YORK.

'TYPE-WRITING MACHINE.

'fue avaro?.

' Specification of Letters Patent.

Patented Feb. i1, 190s.

Application filed 'May 12| 1906. Serial No. 316.4711

`of Massachusetts, andllartford, county of Hartford, and State of Connecticut, respec- Vtively, have invented certain new and useful improvements-in .Type-Whiting Machines, of whichthe following. is a full, clear, andv exact description, such las Will enable others skilled vthe-art to which it appertains to make and metile-same.

"Om" invention frelates to typcwriting maffhinesf and-hasforits main objectl to provide means-for Irendering the platen-immovable `from-the; printinglplane under pressure of the .fprinting instrumentaliti-es.

IAnother object yis to 'provide means for holding thezplatenin -a fixed position during printing`,yet such` that the platen may be `accurately-adjusted to :or from the printing planefand vheld immovably in. any `adjusted position. y

portingmeans ofexceedingly lightand simple construction, through the employment of which theplaten-supporting framework of Ilexisting' machines maybesubstantially eliminated. y

'.'Othferobjects will bein part obviousand in rpart pointed outy hereinafter. 4 The invention accordingly consists. in the features of construction, `combinations of elementsrandz-:arr'angement of parts hereinafter 3-5 @which -be indicated in the following set-forthzand the scopeof'the application of -fclai-rns. l -f :I n. the accompanying dra-Wings, wherein is illustrate'dftwo of the various possible embodiments of our invention, Figure l is a transverse sectional view thereof showing certain of the parts in elevation. Fig. 2 is a longitudinal sectional view taken on line a-a of Fig.l 1. Fig. 3 isa view in elevation, showing thel means employed to indicate the position of the platen With respect to the print- Fig. Llis a top plan view of a por- 'tion of the machine, sho-Wing certain features of our invention. Fig. 5 is a longitudinal sectional view taken through a typeWriti-ng machine showing a different embodiment of our invention.

' Similarfl'eference characters refer .adapted p type-Writers, wherein the printing charac- A further obj-ect is-tolprovide:platen-supto simiy lar parts throughout the-several views of the drawings.

.ln order that the more important objects' and advantages of our invention may be understood, it may -be noted that .the writing machine to which our .invention is especially comprises a type known 4as silent ters press against the impression surface in contradistinction to the usual types which effect printing by impact or concussion of the printing characters. lt is desirable-in this` type of machine that a substantially rigid impression surface be provided, as any movement of the platen under pressure of the printiugdevice seriously affects thc quality ofthe Work, and especially is this true Where considerable pressureA is exerted to produce a large number of copies, as in manifolding. lt`is,moreover, desirable that the platen be .capable of adjustment toward or from the normal printing plane, which is the common plane occupied by the front faces of the printing characters in their eXtreme projected position.

By our invention., which We shall presently describe, We preferably attain the above, `among other ends, by anchoring a tie-rod in the front rigid framework of the machine and extending the same-transversely thereof to thefrear ofthe platen behind the printing point thereof, to provide a-rigid abutment therefor, leaving the rear portion of the machine substantially free fromv` supporting framework. Fife also provide means operatable from convenient location for shortening or lengthening theeifective length of this tie-rod, enabling the operator at Will to cause the platen. to advance or recede from the normal printing plane, the amount of move.

ment thereof in either direction being indicated by suitable device preferably visible at all times to the operator.

The above and other advantages arev secured in constructions of the nature of that hereinafter described..

vReferring 110W` tothe drawings, and particularly to the embodiment shown in. Figs. 1 to 4l inclusive, l indicates the framework of the machine, carrying a bed 2 suitably supported upon the side Walls thereof, across which type-bars 3, but one of Which 1s shown, are:projected, said type-barsrin the present instance, being shown provided with a pluralnecte vices, not, shown.

' handle or knob 22.

ity of printing characters. Type-barv 3v is con- 5 'and rod 6 to key-lever 7, which rests upon universal bar 8. .The above mechanism, however, forms no essential part of our presv ent invention, but serves as an aid, merely,. 1n rendering the same'clearer of understandlng. l

At the rear of the machine, su ported by standards 9, is a stationary rai 10, upon which rides a tubular slotted yoke 11, comprising a portion of the carriage, said yoke eing carrled upon grooved wheels or casters 12, which extend through openings 13-in the yoke and run u on rail 10. Yoke 11 is afforded feed for etter-spacing through rack.

14 and pinion 15, by suitable escapementdel Rigidly mounted u on yoke 11 at either end thereof, and exten 4ing upwardly therefrom, are channeled guides 16, which operate through means hereinafter.

described to guide the platen when the same is shifted for upper or lower case printing, said platen frame 4being shifted to different printing positions by means of shift mechanisnrl operating through channel-bar 18, which extends longitudinal-ly of the carriage.

Near the upper extremity of the side members 19 and 20 of the platen-frame 1.7 is journaled a paper roll 21', having an operating Side members 19 and 20 also-form a support for a longitudinally-ex tending I-beam rail 23, which has, at either end thereof, paralelly-arranged

side arms

24 and 25 extending'forwardly therefrom and supporting at their forward ends, in the present instance .by means ofv screws 26, the.

platen 27. Platen 27 is comprised by a thin strip of metal having a plane impression face 28,;and has its rear face 29 curved to rest against the curved periphery of aper roll 21 so as 'to fit the same closely. I- earn rail 23.

is substantially co-extensive with the length of-platen'27 ,and slides, when feedingof the carriage 1sA afforded for letter-spacing, in a block 30, provided with lips 3'1'and 32, which take 'about the edge of said I-beam rail'23 and maintain the block-lin closeengagement wi-th'I-beam rail 23 but allow said I-beam rail tofreely slide therebetween when 'the carriage is fed for letter-sp aci'n'g-A f lnl order that the platen may be yrendered unyielding .against pressure of the lprinting characters, we have provided .a tie-rod or bar 33 extending transversely of the machinev 'in the central portion thereof', which issu-p"- ported intermediate its length in a guiding trough 34 defending from.bed 2 'and Suse' pended there rom by suitable -means as, inthepresent instance, by screws .`35.'. Tierod 33, which may belthickened as at 36, if desired, to' give added'strength, has at its .rear 'portion-a verticalV extension or abutment 37 provided with'ways 33 to receive.

by means of link'4, toggle mechanism.

.surface of -aper roll 21.

wise movement by means of collars 45 and 46 inned thereto at 47 and 48 res Aectively. Col ar'45 is provided with a han le 49 by means of Whichvadjusting screw .42 may -be turned, and a pointer 50re istermg upon -a' vconcentrically arranged sca e 51.- Depend.

ing from. bed 2 is a rigid curved Amember or lug 52 from which extend. radial braces 53 joining the bed with the frontwall 44 of the By means f ofv framework of the machine.

these braces, the wall of the framework isl held rigid againstall stressesexerted by. the .tie-rod. Resting against member 52 and entering opening 54 in the end of. tie-rod arestrong coil springs 55, one of which is ar'- ranged at either side of adjusting screw 42. These s ringsexer'ting their-influence against the en(f)of tie-

rod

33,3 take u tion in the tie-.rod and at,al times-,compel abutment -37 to assume the rearmost posiytion ermitted' by th'eadjustment of screwv 42. t should, however, be' noted .that as screw 42l is 'fixed 'by washers 45 and, 46',

against endwise movement andscr'e'w 42 being threaded into the end opemngof tie-rod 33, verylittle lost motion,`1f any, can ever,l

orted' u on the inner beveled edgejof ,l beam ra' 23 and extends 'about the under From t e foregoing description of1 the 'above described .embodiment ofour invention, it will be observed thatplaten A27'is car-7 ried at either endby-rigid memberextending forwardly from opposite ends oflfbeamfrai exist in the tie-ro'd.- 'A' paper table '56 is su 23, .andfor substantiallyits entireI length rests 'in' contact Withpaperroll 21', they journals. of which" extend through sidezmembers 19 and 20'ofplaten frame 17, and, as,fIfbeam' rail 23 rests against block 20 interposedbetween .the same 'and l,abutment 37 oftie-rod 33,.any (pressureupon the 'platen' will p ro-f duce a l vtie-rodbeing rigidly anchored against --end-- Wise movement byreason of'itsattachment irect pull :upon the tie-rod. .-lhis to the front wall ofthe framework, the platen ispreventedfrom yieldin. under pressure of 12o the printing' devices.v ockfi30', :.slidin in` ways.A 38, permits the vplat-'en to befsh' ted from normal printing positionto otherf'printing osition's, vand I -heam 23,1' in slides in vb ook 30'when 'letterfspacingus afforded.

' When' it is.l desired 'to .adjust the platen ,with lrespect to .the normal lpr'intiigfp'lane, such 'adjustment may-beeffected by simply turn- ,ing adjusting lsc rew 42 of tie-rod 33 by means of operating 'handle 4Q,4 the amonntof the being accurately measured end indicatedI 4 against yielding due to endwise' or tensile Award portion with a channeled way 6 4, the walls of which take about afiange of a .orchanneled bracket 67 depending from the .type bed. Legs 680i yoke 66 extend. foran integral internallythreaded member 69 receding or advancing 'movement 'thereof i upon scale 5l. Itl will be noted that tie-rod 33 takes the place of the supporting framework usually employed in type-writing ma chines,leaving the rear portion of .the ma chine entirely free for .the attachment of tabulating or other auxiliarydevices, which, if desired, may be su )ported from the tierod. The tie-rod, while substantially rigid stress, is nevertheless 'of exceedingly light construction, which fact materially lessens the weight of the machine.

f ln-Fig; 5 we have shown an adaptation of our invention differing slightly from the one above described, in that the platen frame is rigidly yet slidably anchored in a yoke adjustably connected with the rear ehd ofthe tie-rod. In this embodimenn. as in the embodiment above described, the platerr frame l7'is mounted for shifting in vertically ldisposed channeled guides 16 and has, at. either end, upwardly extending varms. .57, which form journals forthe shaftof the paper roll 21. Forwardly from arms 57 extendarms 58, between which is extended the platen 27,

said platen being constructed similarly to that vin the embodiment above-descijibed and lying against the peripheryfof the paper roll in a similar manner. j Upon an u right 59 erected upon channel bar 18 of tlliel platen frame, disposed between the side Walls thereof and rigidly connected therewith,- is a railor plate 6() provided 4at its forward portion with a downwardly turned flange 61.

This flange extends the entire len th otthe rail or plate 60, and isslidably ttedin a channeled block 62, which has an upwardly turned lip 63 for engaging the rearsurface of flange 6l. Block 62 is providedin its foryoke 66 islidably supported butrfitting closely between. the walls of a guidingtrough l.Wardly and approach each other to -unite in which engages the threaded end of a tie-rod` 70 suitably supported for sliding in hangers '71 depending from type bed. This tie-rod extends through the iront wall of the ma chine and has rigidly secured 'theretoa knob or operating handle 7 2,.'preterably milled as shown,` said milled knob carrying a pointer 73' which registers on a suitable scale provided on the front wall oi" the machine asin the embodiment'rst above described. In this embodiment of our invention we have shown a tiltable paper table 74 which is j ournaled at 75 upon lugs 76 extending from plate 60, said table being provided at its for-v ward end-'with a presser roll '7 7 held 'yieldably against the paper roll by suitable springsgnot 1 shown herein as 'the -same comprisesno Yes-v sential part of our present invention. In the operation of this embodiment of our invention it will be understood that when feed of the carriage is afforded by the escapernent mechanism, tlange 6]. of plate 60 will slide in block 62 and that block 62 will ride on Hangeprinting plane being indicated u on the scale provided upon the front wal of the irame of the machine as in the embodiment iirst above described. The pieten, through arms 57, plate 60, and block 62, which is cnnected to the yoke of the tie-rod, is held rigidly against rearward movement lunder pressure of the printing instrumentalities when projected thereagainst.

Itwill accordingly beseen that we have 'provided constructions well adapted to attain the ends and objects of our invention, some of which have been already pointed out which will` operate with a high degree of efficiency. An important advant Ue secured bythe structures as thus described residesin ther fact that through the adjustable character of the platen with respect to the printing oint the printing characters may .Je applic ltothe impression surface with any desired degree rof. pressure, thus securing even impressionsfthrough the employment of inking ribbons in various stages ai' wear, or of ribbons impregnated with different uantities of ink. The adjustment of the p aten can be easily' and quickly accomplished from aV location near the key-board convenient to the operator, and the cooperating scale and pointer mechanism at all times indicates its exact position. .l't should furtherbe noted that since thevtie-rod is anchored in thefront wall of the fr aining'o'f the machine near the pivotal su ports of the typebar proj ecting means, an whether extended rearwardly ot the platen or furnishing an anchor for the platen beneath the same, it forms a 'rigid abutment for the said platen, and not only resists pressure of the type-bars .exerted thereagairist, but, as well, resists the reaction. of said typebars communicated to the front wall of the machine through their projecting devices. It should also be noted that the tie-rod furnishesa tension member which'connectsthe framing of the machine -and the support of. the type-bar actuating .mechanism with the platen.

It will, of course', be apparent that while both embodiments of our invention, as-.herein shown and described, are especially adaptedfor the type ofmachine with which the are.- shownv associated, thev-are also Wel i sense. We desire` it also` to be understood that the language 'used in the following claims adapted for use other forms of type- `,writingmachines. 'e f As many changes could be made in' the above" constructions and. many apparently `widely differentembodiments of our invention couldbe-made without departing from the scope thereof, we intend that'all Amatter contained Vin the above description or shown .in the. accom anying drawings shall be interpreted asi ustrative and not in a limiting is vintended .to cover` all ofthe generic and scribedl andall' statements 'of the scope of the mventionwhich, as a matter o'f language, m1 htbe saidl to fall therebetween. Y

aving described our invention, what we 2. The vcombination-in a typewriting ma chine, of a platen,l tied a ainst pressure of the type bars by. means anc ored in the framing of the machine andjeirtendin y transversely thereof intermediate itsends, t e'press'ure resisting portion thereof being in line with the printing point.'

3.' rlhe combination withfthe platen ofl a typewriting' machine, ofy means 'which eX- tends transversely of the machine in the cen` tral portion 'thereofy for tying the platen to the front of the framework ofthe machine so that movement thereof is prevented whilelthe printing charactersarebeing impressed against the platen. 4.' The 4combination with the platen' of a typewriting machine, of means extending from behind the rinting point on the platen and then throng the central portion of the machine-to thelfront portion thereof, said means being anchored in the framing of the machine whereby' thrusts ofthetype-bars are eecti'vely resisted.' I 5.V In a typewriting machine, the combinav tion of a platen, and pressurefresisting vmeans located directly behind the printing point thereof, said means extending transverselyT vthrough the centralportion of the machine and being anchored to the front portion of the frame of the machine whereby the platen l"is rendered immovable in the direction ofthe thrusts of the printing devices.

6. AIn a typewriting machine, the combin'ation of a platen, and a rod anchored at oneend in the framework of the machine, extending transversely thereof, and having its opposite end connected with the platen behind the printing point so as to furnish a backing for Vthe platen which is stationary during prmtmg.

specific' features of the invention herein declaim as new and desire to secure by Letters rearvf/iardlytol a point behind fthe 'to the central portion of the front wall of the The combination, inja typewritingmachme, of a platen, and a device comprising apair of connected, relatively adjustable members, one end of which furnishes a bac-king for the platen andliaving the opposite end there- 7.0

of anchored inthe frame ofthemachine, said device ,operating to maintain; the platen against movement Afrom vthe printing plane underpress'ure of the printing mstrumenta tieS. 75 8. `In 'a typewriting machine, the combines tion .with the platem'a device comprising a pair'of relatively adjustable-members one ',end of which 'furnishes a backing fory the platen andihaving the o 'posite end 'thereof' 80 anchored inthe frame of) the machine,`said device operating to maintain the platen against movement duringv printin .and means for adjusting saidmembers re atively to' each other. a I 9. The lcombination 'with the platen of a typewriting machine,l of: a rod anchored in the front of the framing of the machine and extending rearwardly intermediate the ends of the machine to a point behind the printing point of the platen to furnish 'a rigid backing for the laten while printing is being effected. --10. n`a typewriting machine, in combinaytion'with the printing devices and the platen,

-of means for furnishing .a'rigid backing for 95 .the, platen through a connection with a rigid part of the lframework in the front portion of 'the machineintermedi'ate the endsl thereof.y

' 11. In atypewriting machine, in'combina-A tion, a platen, and adjustable ,means extending rearwardly from-.a rigidipart of the lmachine in the front portion intermediate the ends thereof that effectively prevents yielding pf thelplaten under the-pressure of the type SIS.

12. In a typewriting machine, in combination, a laten, and means .extending rearwardly rom a rigidl part of the front of the framing of the'machine 4and then' extending upwardly to a point directly behind the printing point of the platen to furnish a rigid backing therefor.

13.l In a typewriting machine, in combination, a platen, and means for tying the platen framing of the machine.

14. In a typewriting machine, in combination, a platen, means for tying the platen to the front wall-of theframing of the machine' intermediate the ends thereof, and means for changing the length of said tying means.

15. In a typewriting machine, in combinaf tion, a platen, and extensible means extendl ing rearwardly from the front portion of the frame of the machine intermediate its ends to a point behind the platenlto form an im` movable support therefor.

16. In a typewriting machine, in combination, a platen, means fona justing the platen in the direction of the stroke of the type bars,

said adjusting means being operable from a position in the front of the machine near the keyboard, and means cooperating with said adjusting means to indicate theamount of adjustment given the platen.

17. In a typewriting machine, in combination, a platen, and means located at the front portion of the machine near the keyboard for adjusting the platen toward or from the printing plane, said adjusting means operating to maintain the platen against yielding 1n any adjusted position.

18.' In a typewriting machine, in combination, a platen, adjustingmeans for the same anchored in the front wall of the machine, and means for operating said adjusting means whereby the platen may be moved toward or om the printing plane.

19. In a typewriting machine, in combination, a platen, adjusting means therefor anchoed in the front wall of the machine, and means coperating with said adjusting means to indicate the amount of adjustment given the platen thereby.

20. In a typewriting machine, in combination, a platen, a member forming a rigid abutment therefor extending forwardly thereof, and a screw-threaded member anchored in the front wall of the machine and coperating with said first-mentioned member to nove said platen toward or from the printing p ane. Y

21. In a typewriting machine, in combination, a platen, an unyielding abutment for the platen extending forwardly thereof, a member having a threaded connection with said abutment Aanchored in the front wall of the machine, means for rotating said member to cause said abutment to move the platen toward or from the printing plane, and means for indicating the amount of rotation given said rotating means.

.22.A In a ty yewriting machine, the combination with the carriage, of a platen frame forming a part thereof, and movably mounted therein, a platen rigidly supported in the platenframe, and rigid backing means for the platen frame extending forwardly thereof attached to the front Wall of the framework of the machine. v

23. In a typewriting machine, in combination, a platen, means for supporting the platen at either end thereof, and an abutment adapted to prevent yielding of the platen supporting means pwhen the platen is engaged by the printing instrumentalities, said abutment being held in a rigid osition by means extending transversely of t emachine,

intermediate the ends thereof, and attached to a fixed part of the machine.

24. In a typwriting machine, in combination, a platen, means for supporting the platen at either end thereof, an abutment adapted to prevent yielding of the platenmeans anchored inthe front wall of the frame of the machine intermediate the ends thereof and connected with said abutment adapted to hold the same againstmovement.

25. In a typewriting machine, in combination, a platen, a support for the platen, and a tie rod for the platen support, one end of which furnishes a rigid abutment for the plllater support behind the printing point of t e p anchored in the front Wall of the typewriter' frame intermediate the ends thereof.

2 6. In a typewriting machine, in combination, a platen, means for supporting the platen at either .end thereof, an abutment located behind the printing point of the platen adapted to prevent yielding of the platensupporting means when the platen is engaged by the printing instrumentalities, means connected with a rigid portion of the typewriting machine for holding said abutment in a stationary position, and means interposed between the platen-supporting means and said abutment adapted to permit the platen to be shifted to other printing positions or to be fed for letter spacing.

27. In a typewriting machine, in combination, a platen, means for supporting-the platen, means located directly behind the printing point of the platen adapted to furnish a rigid abutment for the platen-support'- ing means, and means Yinterposed between said platen-supporting means and said abutment which permits the platen to be shifted for different case printing or to partake of letter-spacing movement.

28. vIn a typewriting machine, in combination, a platen, a supportfor the platen, and a tie rod for the platen su port, one end of Which furnishes a rigid a utment lfor the platen support behind the printing point, the opposite end thereof being anchored in the front WallI of the machine, and means inter posed between the platen support and said ast-'mentioned means adapted to allow shifting of the platen to another printing position or to partake of a letter-spacing` movement.

29. In a typewriting machine, in combination, a laten, a platen support, a rigid abutment or the platen support, and means interposed' said abutment adapted to slide upon said abutment When the platen is shifted to another printing position, said platen su port being ada ted to slide in said last-mentioned means when letter-spacing movement is afforded.

30. In a typewriting machine, in combination, a platen, a laten support, a rigid abutment for the p aten support, and a block slidably mounted upon said abutment andV aten, the opposite end thereof being between said platen support and'v interposed between thesameand said platen support in which block said platen support is slidably mounted.

31. In a typewriting machine, in combination, a platen, a platen support, a rigid abutment for the platen support, and a loosely-mounted block carried by said platen support sliding in ways in said abutment when the platen is shifted to other printing positions.

32. In a typewriting machine, in combination, a platen, a platen support, a rigid abutment for the platen support, and a block in which the platen support slides when letterspacing movement is afforded, said block s iding relatively to said abutment when the platen is shifted to another printing position.

33. In a typewriting machine, in combination, a platen, a platen support, an abutment forming a rigid backing for the platen support, and a block interposed between said platen support and said .abutment provided with means loosely engaging said platen support to permit a 'letter-spacing movement thereof and being further provided withmeans sliding in ways in said abutment when the platen is shifted to other printing positions.

34. In a typewriting machine, in combination, a platen frame comprised by a pair of side members joined by a rigid, longitudi' nally-extending member, a platen supported by extensions from the ends of saidlast-mentioned member, a paper roll journaled between said side members of the platen frame, the periphery thereof forming'a rigid backing for said platen intermediate the ends thereof, a block in which said longitudinally-extending member slides when the platen frame is fed for letter-spacing, and a rigid abutment in which said block slides when the platen frame is shifted to other printing positions.

35. In a typewriting machine, in combination, a platen frame comprised by a pair of side members joined by a rigid cross member which extends longitudinally of the machine, a platen supported by means extending forwardlyv from the ends of said cross member, a paper roll journaled in the side members of said laten frame at or near the intersection of said side members of the platen frame with said platen-supporting means, the periphery of said paper roll conforming to the .re-ar surface of said laten andforming a backing therefor, a bl) which said cross member slides when the platen frame is fed for letter-spacing, and a rigid abutment provided with ways in which said block slides when the platen frame is shifted to other printing positions,

36. In a typewriting machine, in combina- 7 tion, a platen frame comprisedby a pair of side members joined by a rigid cross member which extends longitudinally ofthe machine, forward extensions from said crossmember,

ock provided with a 'way in,

a'platen rigidly connected to said forward ex'- tensions, a paper roll journaled at substan-` tially the intersection of theside members of said platen frame and said forward extensions, a block provided with a way in which said cross member slides when the platen frame is fed for letter-spacing, an abutment provided with ways in which saidv block slides when the carriage is shifted to a different printing posit-ion, and means connecting said abutment with the front'wall of the machine.

37. The combination in a typewriting .machine, of means for effectivelyresisting pressure of the printing instrumentalities comprising a platen,

member upon the forward. end extensions of .so a paper roll against which'A the platen rests intermediate its ends, a rigid which are carried said platen and said paper s roll, and an abutment, behind the printingp'oint of the platen.

38. The combination in a typewriting machine, of means for effectively resisting the pressure of the type bars comprising a'ineml berv anchored in the front wall of the machine and extending rearwardly thereof to form an abutment, a block slidably mounted upon said abutment, a member sliding in said block, a paper roll carried-by forward extensions of said member, a platen also carried by said, forward extensions and resting againstv said paper roll, said platen, paper roll and abutment being arranged in line with the direction of thrust of the type-'bars and ina plane parallel to the rearwardly extending member which forms the abutment.

39. In a typewriting machine; the 'combination with the platen, of a 'member extending rearwardly from the front wall of the machine to form an abutmentfor said platen,

and su porting means for said member intermediate the ends thereof. V

4Q. The combination with the. platenof a* typewriting machine, of an abutment, a member extending from said abutment through the front wall of the machine, means for holding said member-against endwise movement, and guiding members for. said abutment intermediate the ends thereof.

41. The combination with the platen'and' type bars,.of a bed for 'supportingsaid type bars, a tie rod anchored-in the front wall of the machine and extending rearwardly there-v from and thence upwardly to form an abut-1 ment for the platen support, and means depending from said bed through'which saidv tie rodextends.

42.'. In a typewritingmachinefin combination, a platen, a shiftable frame to which saidplaten is'rigidly secured, a rigid abutment for the platen frame adapted to maintain the same against yielding under pressure nov of the printing instrumentalitiesagainst ,the

platen, and means for connecting said 4abutment to a rigid part ofthe-framing ofthe abutment being dropped arene? front Wall of the machine intermediate the ends thereof. Y l

43. In a typewriting machine, in combination, la platen, a vertically shiftable frame to which the platen is rigidly secured, a vertical abutment for the platen frame, a portion of said abutment extending forwardly beneath the platen to be. anchored in t-he front por tion of the machine.

44. In a typenf'riting machine, in combination, a platen, a vertically shiftable frame to Which said for the platen frame against which said platen frame presses when the printing instrumentalities are thrust against the impression surface of the platen, said abutment being providedwith an extension projecting forwardly thereof beneathv the platen, and means connecting the forward end of said extension with the front Wall of the framing of the machine.

45. In a typewriting machine, in combination, a platen, a platen frame shiftable vertically to another )rinting' position, a rail forming a backing or the ends of the platen, an abutment forming a backing for said rail, and means connecting said abutment with the front Wall of the machine, whereby said abutment is held against yielding under pressure of the printing instrumentalities against the platen.

. 46. In a typewriting machine, in combination, a platen frame, a platen carried thereby and shiftable with said platen frame. to other printing positions, a paper roll against Which the platen rests journaled in said `frame, a rail the ends of which form a backing for said paper roll and the platen, an abutment form- `ing a backing for said rail, said abutment belng provided with a forward extension dropping beneath the platen and extending forwardly thereof, and a member anchored in the framing of the machine and threaded to the end of said forward extension.

47. In a typevvriting machine, in combination, 'a platen frame comprising upright guiding members to permit of shifting said frame, a rail supported at either end by said guiding'members, members extending forwardly from the opposite ends of said rail, a platen supported rigidly uponthe forward ends of said last-mentioned members, a paper roll journaled in said guiding members against which the platen rests, the journals of said paper roll extending through the members which extend from either end of said rail, said platen, the journais of said paper roll and the rail being in a horizontal alinement, an abutment backing up said rail behind the printing point of said platen, said beneath said rail, platen and extending forpaper roll and and a member for tying said Wardly thereof,

- abutment to the front Wall of the machine.

48. The combination with the carriage, of

platen is secured, an abutment` 'the machine and extending rearwardly therea vertical, shiftable laten frame mounted therein, a platen rigidriv secured between the ends of the members which extend forwardly from opposite sides of said platen frame, a paper roll journaled in said platen frame against which the platen rests, said paper roll forming a backing for the platen intermediate its length, a rail extending longitudinally of said platen frame and secured at its opposite ends thereto, a block in which said rail is adapted to slide when letter-spacing movement of the platen is ai'orded, an abutment provided with a vert-ical extension having Ways in which said block is adapted to slide when the platen frame is shifted to another printing position, said abutment being provided with an extension dropped beneath the platen and extending forwardly thereof, and a member threaded into the forward end of said extension and anchored in the front Wall of the framing of the machine. 49. In a typewriting machine, in combination, a member anchored in the front Wall of of and having a vertical extension atI its rear end provided 'with guiding Ways, a block sliding in said Ways, a rail adapted to slide in said block, a platen, rigid members extending forwardly from the ends of said rail to the forward ends of which 'said platen is rigidly secured, and a'paper yroll journaled between said forwardly-extending members against which said platen rests intermediate its ends. v

50. In a typewriting machine, in combination, a platen, means anchored in the framing of the machine and extending transi versely thereof adapted to prevent movement of the platen 4in the direction of pressure of 105 the printing devices, and means for taking up lost motion in said first-mentioned means.`

51. The combination, in a typeuriting machine, of a platen tied against pressure of the type bars by means anchored in the frame of the machine, and means for taking up lost motion in the tying means.

52. The combination, in a typewriting machine, of a platen, means-for anchoring the platen to the frame of the machine to render the same immovable against pressure of the printing instrumentalities, and resilient means for holding the platen in the rearmost position permitted by the anchoring means.

53. The combination, in a typewritmg machine, of a. platen, a tie rod therefor, and means for taking up, lost motion in the tie rod.

54. In a typewriting machine, in. combi nation, a platen, a tie rod for the platen, and means for maintaining the tie rod in an extended condition. f

55. In a typewriting machine, in combination, a platen, a rigid abutment for the platen. means for moving said abutment to cause vthe platen to advance toward the printing plane or recede'therefrom, and means for yieldingly opposing the movement of the abutment when the same is advanced .toward the 'printing plane. 56.In a typewriting machine, in combiy nation, a platen, a rigid abutment for t-he plane.

vis

platen,fmeans form ving said abutment to cause the platen t advance toward the .printing plane or to recede therefrom, and a spring for yieldingly opposing the advancement ofsaidgabutment toward the printing 57.v In a typewriting machine, in combination, a platen, a member forming a rigid abutment therefor-extending forwardly thereof, and a screw-threaded member anchored inv the front wall of the machine and cooperating with said first-mentioned member to move said platen toward or away from thel printing plane, and Vmeans interposed 'between said members adapted -to take up lostmotion therebetween` 4 58. Ina typewriting machine, in combination, a platen, adjusting means for the same anchored in vthe front wall of thc machine, means for changin'gvthe length of ,said adjusting means whereby the platen may be moved toward or from the printing plane, and means for maintaining the platen in the rearrnost position permitted byv the adjustment of said 'adjusting means.

59. In a typewrit-ing machine,in combination, a platen, a suppdrt for the platen, a

[tie rod for the platen support one end of which furnishes a ri id abutment for the platen support behin the printing point of the platen, the opposite end thereof'being anchored in the front wall of the machine,

and a sprin formaintaining said tie rod in] lan extende condition.

60. In a typewriting machine, in combination, a platen, a support for the platen,

' an abutment for backing up the platen support, said abutment extending forwardly of the platen, an adjusting screw threaded into thel forward extension of said abutment and anchored in the front wall of the frame of the machine, and a spring resting against a shoulder upon the frame of the machine and Iexerting its'pressure against the forward exof the machine an exerting their pressure against the end o f the forward extension of said abutment to cause the same to' assume the rearmost position permitted by the adjustment of said adjusting screw.

62. Inla typewriting machine, the combinationwith the type bars, of a platen shift- 'able for different case printing and which feedslongitudinally for letter spacing, and an abutment erected behind the platen and in line with the printing point thereof for resisting any tendency of the platen to recede from the printing plane under pressures exerted by the type bars.

63. In a typewriting machine, the combination with type bars adapted t0 print by pressure inv contradistincti'on to -printing by impact or concussion, of a laten movable transversely and longitudina ly of the printing point, and an abutment located behind the printing point of the laten andvin line therewith which effective y resists alrecession of the latter from the common plane .as-

sumed by the faces of the type bars when they are projected to the printing point.

64. In a typewriting machine, the combination with the type bars, of -a platen shiftable for different'case printing and movable longitudinally for letterA spacing, an abutment erected behind the platen which effectively resists any tendency of the platento recede from the printing plane under pressures exerted by the type bars when they are projected to impression, and means combined with said abutment for adjusting the platen toward or from the printing plane.

65. In a ty, ewriting machine, the combination with platen, said type bars and said platen being mounted for relative transverse and longitudinal movements to permit of different case printing and letter spacing, and an abutment erected in line with and behind the printing point of the platen which prevents a relative receding movement between the type bars,

and the platen when the former are projected to impression.

66. In a'typewriting machine, the combination with direct thrust type bars, of a platen, said ty e bars and sai platen being mounted for re ative transverse and longitudinal movements to' permit of different case printing and letter spacing, an abutment which prevents a relative receding movement between the type bars and the plat-en with respect to the common lane assumed by the faces of the type bars w en they are projected to impression, and means for effecting a relative adjustment between the platen and the type bars with respect to the printing plane.

67. In a typewriting machine, the combination with the type bars and the platen, of a member which extends rearwardly and then upwardly behind the platen to form a rigid irect thrust type bars, ofia' l backing therefor, and means combined with said backing member for adjusting the platen l with respect to the printing plane.

Ina typewritmg machine, the combination wlth the type bars and the platen, of a member extending rearwardly and then up`' j means toward or from the common plane ,"device extending rearwardly t rough the. machine intermediate the ends thereof, and

."'having a portion thereof extending upwardly assumed by the faces of the types when pro- 'jected to impression, whereby the platen is moved in corresponding directions withrespect to said plane. l

69.. In a typewriting machine, the combination with the type bars and the laten; of

means extending-upwardly behind t e platen.

to form a rigid backing therefor, whereby the pressures of the type bars when they are projected against the platen are effectively rey sisted, and means combined with said backing means ada ted to move theplaten toward or from t ie printing plane.

70. In a typewriting machine, the combination with the type bars and the platen, of a device secured to a rigid portion of the framing of the machine, which extends upwardly behind the laten to furnisha rigid abut ment that will effectively prevent a recession ofthe platen when the type bars are proj ect-- ed thereagainst, said device having means whereby it may be adjusted to cause the platen to move toward or from the common plane assumed by the faces of the type bars when they are projected to impression.

` 71. In a typewriting machine, the combination with type bars and the laten, of a behind the platen to form a rigid abutment therefor, said device having means for adjusting said upwardly extending portion forwardly or rearwardly to move the platen in corresponding directions with respect to the common plane assumed by the faces of the types when the type bars are projected to impression.

72. The combination in a typewriting machine, of a platen and a device comprising a pair of connected relatively adjustable members, said device being anchored to a fixed ortion of the machine and having one end tliereof arranged to. furnish a backing for the platen in line with the printing point which effectively holds the same against.

the machine and extending rearwardly and then upwardly to a point dlrectly behind the printing point of the platen.

74. In a typewriting machine, in combination, a platen, an abutment extending upwardly behind the platen to furnish a rigid backing therefor, means for tying the abut ment to a fixed portion of the framing of the machine, and means for changing the length of said tying means.

75. In ay typewriting machine, the combination with the platen and a plurality of 'printing members adapted to print by pressure, of means operable near the front portion of the machine in proximity to the keyboard for adjusting the platen toward and from the printing plane and for maintaining the platen against yielding in any adjusted position.

7 6. In a typewriting machine, the combination with vthe platen and a lurality of printing members adapted to print by pressure, of an abutment arranged behind the platen and adapted to furnish a backing therefor, and means connected with said abutment and operable from a position in proximity to the keyboard for moving said abutment toward or from the common plane assumed by the faces of the types when projected to impression.'

77. In a'typewriting machine, the combination with the platen and a plurality of printing members adapted to prlnt by pressure in contradistinction to printing by impact or concussion, lof an abutment arranged behind the platen which furnishes a backing therefor, adjusting means cooperating with said abutment for moving the platen toward or from the common plane assumed by the faces of the types when they are projected to impression, and means cooperating with said adjusting means to indicate the amount of adjustment given the platen.

7 S. In a typewriting machine, the combination with the platen and a plurality of type bars adapted to print by pressure, of an abutment disposed behind the platen and mounted to slide transversely of the machine, a paper roll arranged between said abutment and the platen,a space being provided between said abutment and the paper roll through which the paper may be inserted, and means cooperating with said abutment to move the platen and the paper roll toward or from the common plane assumed by the faces of the types when they are projected to impression.

79. In a typewriting machine, the combination with the platen frame, of a platen carried thereby, a platen roll journaled in said frame behind the platen, an abut-ment arranged to slide transversely of the machine and extending upwardly behind the platen frame to furnish a backing therefor, and

means combined with said abutment for adv justine; the same toward or from the plane assumed by the faces ofthe types when they areprojected to impression, whereby the face of the platen with respect to said plane may be regulated.

80. In a typewriting machine, the combination'with the platen and a plurality of type bars adapted to print by pressure, of an abutment located directly behind the printing 4point of the platen which is bodily movable toward or from the common -plane assumed by the faces of thetype when projected to impression, and means for moving said abutment and for holding the same in a predetermined position.

8].. In a typewriting machine, the combination with the platen and a plurality of type bars adapted to print by pressur of an abutment rising from beneath the p aten to'- a position directly behind the printing point thereof which furnishes a rigid backing for the same, and means for adjusting saida'butment to carry the platen toward or from the printing plane` 82. In atypewriting machine,- the combination with a platen and a pluralityv of type bars adapted to print by pressure, of an abutment disposed behind the platen, and a paper roll arranged between said abutmentand the vplaten for receiving paper insertedbetween the same and said abutment and for feeding the paper upwardly'across thefaceof the platen.`

83.` In a typewritihg machine, the combination with a plurality of type bars ada ted to print by pressure, of abcd upon W 'ch said type bars are mounted, and across which they are slid'wh'en projected to impression, a platen, a paper roll arrangedbehind the platen, an abutment erected behind the paper roll for resisting any tendency of the vplaten' 'to recede from the printing plane underpressure of the type bars, and a member connectl ed with said abutment and extending forwardly through the lfront' wall of the. maf. chine, ad'a ted to adjustthe same, whereby the face o the platen maybe moved toward v or from .the printing plane.

84. 'In atypewrrtlng machine, thecombi-.- nation with a plurality of type bars adapted to print by pressure, of a bed upon which said type bars aremounted, and across which they are slid when projected to impression, a

platen, a paper roll arranged behind the platen, an abutment erected behind the paper .ofja movable abutment disposedbe 'roll for' resisting any tendency of the platen to recede Jfrom the printing plane under pressure of the type bars', a member connected with said abutment and extending forwardly through the front wall of themachine, a dapt. ed to adjust the same, whereby the face of f the platen may be moved toward or from the printing plane, a dial arranged upon the front wa'll of the machinel near the keyboard, and

vmeans cooperating with said dial for indil eating the amount of adjustment given the platen.' l

85. In a typewriting machine, the combination with the platen and a plurality of type b ars adapted to print by pressure, .of actuf ating mechanism for the type b ars, anda4 tension member .extended between the su port of said actuatingmechnismjand te platen.'

86. In a typewriting machine, the combif nation with the platen and a plurality of type.

bars adapted'to print by pressure, 'of an abutment 'disposed behind the platen and a ten-f" sion memberl extended between said abutLA ment and a fixed portion .of the framing-'lof 87. In a typewriting machine, the corr-rbi#Y themachine; y

nationwith the platen and a-pluralityiof'type bars adapted to eiiect'printing by'pessure,

"nd-the platen and an adjustablevtension meni'ber connecting said abutmentwith aiixe or'-v tion of the franiingofthe machine 'an for' moving the same toward or from the printing plane and for holding it in' any adjusted ip'osi-` tion..

88. 'In a typewriting machine, the c'oinbi-l nation with the platen and printing 'mecha n" ism ofv a tension` member, adjustable in the direction of its length andfextending'betwee'n.

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