US933219A - Type-writing machine. - Google Patents

Description

0. WUDWARD.

TYPE WRITING MACHINE.

APPLIUATION ruim MAn.1u,19ov.

@33,21 9. Patented sept. '2, 1909.

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0. WOODWARD.

TYPE WRITING MACHINE.

APPLIUATION FILED MAn.1s,1eo7.

Patented Sept. 7', 1909.

3 SHEETB-SHEBT 2.

INVENTUR.

@We WM HIE TTURNEY WITNEEEIEIE mw Zigff mi 0. WOODWARD. TYPE WRITING MAGHINB. APPLIOATION FILED MAR.1I3,1907.

933,21 9. Patented sept, 7, 1909.

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HIS ATT'CJRNY mw. l. MIM NQ "WN-mm www. U- l UNITED STATES lAlll'ilNT OFFICE.

OSCAR WOODWARD, OF NEW YORK, N. VY., A'SSIGNOR T0 YOST WRITING MACHINE COM- PANY, OF ILION, NEW YORK, A CORPORATION OF NEW YORK.

TYPE-WRITING MACHINE.

'lo all whom 'it may concern:

lh. it known that l7 (lsoftn 'oonwaan, a citizen of the United States, and resident ol the borough of hlanhattan, city of New York, in (he county of New York and State of New York, have invented certain new and useful 'Im n'ovements in Iype-lVriting Machines, ofwlhich the following is a specitication.

My intention relates to typewriting- Inaehines and more rarticnlarl)r to the. carl ring-es of such mac lines.

One object of my intenticn is to provide "lneu'is whereby lone' er short platens and 'platen frames may e used interchangeahly on the same carriage truck.

Another .':hject of ,my invention is to provide simple and eiiieient anti-friction roller .spacing means.

To the above. and other ends which will hereinafter appear my intention consists of the features 'oit' construction. arrangements of parts and combinations of devices to be hereinafter set forth and particularly pointed out in the appended claims."

In the accompanying drawings, wherein like reference characters indicate correspending parts in the various Views, Figure 1 is a fragmentary top plan view of the carriage constructed and mounted in accordance with my invention, a long platen and platen frame being shown connected with the truck. Fig. 2 is a like view of the same except that a. comparatively short )laten and platen frame are shown crnneetcd with the truck. Fig. 3 is an enlarged detail transverse sectional view of the iinti-friction roller s acer with the rollers in place, the section wing taken on the line -m of Fig. 4 and looking' in the direction of the arrow at said line. Fig. 4 is a face. view of a spacer with the rollers in place therein. Fig. 5 is an enlarged vertical central front to rear sectional view of the carriave and the. means for sup iorting the same. l Figa 6 is an enlarged detail sectional view showing one of the spring-pressed locking conneetlons be tween the truck members, the section being taken on the line z-z in Fig. 5 and looking in the .directionof the arrow ntsaid line. Fig. is an enlarged detail sectional View taken centrally through the platen and showing the manner of mounting the platen.

Specification of Letters Patent.

Application filed March 16, 1907. Serial No. 362,734.

l.a.tento l Hept. 7, 1909.

Fig. H is' an enlarged sectional detail of roller bearing for the carriage. Fig. 9 is a. detail side vview of one of the rollers.

lVhile l have shown my invention'in a. frontstrilte typewriting machil'le, it. will be umlerstood that the invenlzitn'i may be embodied in other styles of machines.

The frame of the machine comprises side plates l, a rear cross (plate 2 and a. top plate 3. Projecting inwar ly from the side plates 1 are su portm lugs 4, as shown in Figs. 1 and 5. 4 ach o these lugs is provided with an angular seat 5 for the reception of a carrage rail 6 which extends beyond the side plates of the frame. This rail is rooved at its forward fece throughout. tie length thereof, the groove being substantially V- shaped for cooperation with cylindrical antifietihn rollers 'l'. The rail 6 has two perforations 8 extending therethrough at each of the supporting lugs 4. Headed screws E) pass t rough these openings and are received at their lower threaded ends in tapped openings in the lugs 4. The openings 8 in the rail 6 are each larger in diameter than the diameter of the screw which is received therein in order to alfor e sl ht adjustment o rail relatlve y to said sere s.-- e heads o e screws are received in counter-sinks in the rail and are adapted to bear against the lower wall of the counter-sunk portions in the rail when Screwed down in order to secure the rail in its adjusted position. A screw 10 is received at Vits forward threaded end in a tapped opening in a, lug 4, one of these screws being provided for euch lug. The forward end of each screw 10 extends through a. lug 4 and bears against the rail 6 in order to eliect an adjustment thereof fore and aft of the machine. Each screw 10 is extended rearwardly to the rear cross plate of the machine which is perforated at 1 opposite the screw in order to give access to the screw throu h said opening, so that a. screw-driver or lille tool ma. be empio ed from the outside of the mac ine to rea. effect un adjustment of each screw. It W l be' seen that the screws 6 and 10 extend at right angles toI each other and that after aJ fore and aft adjustment of the rail has been secured by mea-ns of the screws 10 the rail may be secured in its adjusted position by ti htci'iing the screws 9. These means likewise afford an individual adjustment near each end of the rail The anti-friction rollers 7 likewise coperate with a substantially V-shaped groove in a liearing or way 12 in one section 13 of the carriage truck. A like rail or way 14 is formed at the forward side of the truck section for coperation with a second set of anti-i`riction rollers 15. These rollers are also received in the substantially V-sha ed roove in a fixed carriage rail 16 secure to ugs 17 on the frame of the machine.

rllle truck section 13 is provided with a lurality of upwardly projecting lugs 18, our being shown in the present instance, near the rear side of the truck section. Each of these lugs carries an outwardly extending fixed pin 19. The com anion truck section, designated as a whole E' the reference numeral 20, comprises end plates 21 united by cross bars 22.. and 23. Rearwardly and downwardly extending arms 24 on each of the end plates 21 of the truck section 20 are bifurcated at 25 in order to forni open-month bearings for cooperation with the pins 19, the particular set of pins with which the bearings or connectin devices 25 co-act deendin on the lengt of the platen frame. f a siort platen fralne be employed, as shown in Fig. 2, then the bearings 25 will coo crate with the two inner pins 19, whereas if)a lon platen frame is employed the bearings wil co-act with the outer set of pins 19. From an inspection of Fig. 5 it will be seen that the bearings 25 open toward the rear of the machine and that the' ins 19 and bearings 25 constitute, in certain circumstances Which will hereinafter appear, pivotal connections whereby the truck section 20 may be turned back on the pins 19 as a center from the position shown in Fig. It will also be seen upon reference to Figs. 1 and 2 that the downwardly projecting me1nbers 24 on the truck section 20 bear against the outer faces of the lugs 18 so that no relative longitudinal movement of the truck sections can take place when the members or enlgaging devices 19 and 25 are in operative re ation. Upon reference to Figs. 1, 5 and 6, and more articularly to Fig. 6, it will be seen that eac of the end plates 21 is apertured at 26 (see Fig. 6) for the reception of a bearing sleeve 27 which is rigidly secured in said openings. The sleeve 27 constitutes a bear-in for a locking pin 28 provided with a. conci al head 29, the base of which is outermost or at the free end of the pin. The opposite end of the pin which extends t rou h the bearing sleeve 27 is connected to a er piece 30 provided with a sleeve 31, Whlch surrounds a coiled v expansion spring 32 which surrounds the pin28 and bears at one end a ainst the fixed sleeve 27 and at the other en against the bottom wall of the ol'iening in the finger piece 99.

rlll'lt/ pressure of the spring is thus exerted to inove the locking pin in the direct ion of the arrow in Fig. t3.

Each of the bearing sleeves 27 is adapted to be received in an open-inonth bearing formed in an upwardly projecting lngl 255;', on the truck section I3 near the forward edge thereof. The month of the bearing opens npi-vardly so that when the truck section 20 is turned on the pivot pins 19 as a center, the bearing sleeves 27 are adapted to passinto and be supported within the open-mouth bearings in the lugs The inner face of each bearin lug 33 is provided with a conoidal opening 34 shaped to conform to the conoidal head 29 of the associated locking bolt. The construct-ion is such that when the locking head 29 is received Within the conoidal opening 34 in the con'ipanion lng the truck section 20 will be rigidly and posi tively secured to the truck section 13. lVhen, however, the locking bolts nrc eat-,h pressed inwardly or in a direction opposite to the arrow in Fig. 7 the locking heads 29 l willpbe moved out of the o enings 34 and out of engagement with the ugs 33 and the forward portion of the truck 2() is thus disengaged and said truck section may be readily detached from its companion truck ser tion 13.

The platen frame comprises end plates 35 united at the rear end portions thereof b v cross bars 36 and 37 so as to provide a sul stantially U-shaped platen frame which is connected by parallel links 38 and 39 to the truck section 20 in order to afford a shifting movement of the platen and platen frame on the truck to change the case position of the platen. The rear end of each link 39 is pivoted by a headed pivot screw 40 to an upwardly projecting arni 41 on an end plate 21 of the truck section 20. A like pivotal connection is made at 42 between the rear ends of the links 38 and the plates 21. The forward end of each link 38 1s pivoted at 43 to an end plate 35 of the platen frame. The forward end of each link 39 is pivotally connected at 44 to an end plate 35 of the platen frame.

From an inspection of Figs. 5 and 7 it will be seen that a cylindrical platen 45 is ro vided with platen heads 46 and 47 united by a headed screw tie-rod 48, the stem of which passes through a central opening in the left-hand platen head 47 and engages at its threaded end in al tapped openin 1n the right-hand platen 46. The rig t-hand platen head has-a sleeve-like projection, hub or Spindle 49 formed with a circumferential groove 50 therein for cooperation with a twoart bearing on the platen frame such as t at.- shown 1n Fi 5 where the lower half of the bearing is ormed in a side plate 35 of the platen rame and the upper part ol' the hearing is 'formed in a bearing block 5| detaeluihly held in place by screws 52. lnrts 35 und 51 are received within the circumferential groove 5() and prevent a relative displacement'. between the platen und the I'ight-harul end plate 35 longitudimilly of the platen. A spindle 525 of the right-inmd linger wheel is receivt-ul within the sleeve- Iilte projection or hub 4S) and is secured in place (herein bv a set screw 53 which takes into a tln'eade( opening in the part 41) and hears at its inner end against a flattened eutout: in the spindle. The lett-hand platen head has a sleeve-lilre projection, hub or sl'iintlle 54 provided with a reduced end which is seated in a two-part. hearii'ig in the lcft-hand members 85 and 51. The part. 54 is internally threaded for coperation with the threaded portion of a spindle of the left-hand finger wheel of the platen. This spindle is provided outside of the left-hand members 51 and 35 'with a circumferential shoulder 5() which hears against said menibers. A screw 5G extends throu l1 a threaded opening in the sleeve 54 and ears at its inner end against the spindle 55 to hold it lixed in its adjusted position relatively to the part 54.` It. will be seen that the means for mounting the platen in the platen frame constitutes a constantly maintained perfectly rigid tie between the two end plates of the pla-ten frame in the line of the axis of the blaten and at a point Where it is ditiicult. to orm a rigid connection between the plates. By a constantly maintained tie, I mean that the tie is at all times maintained durin the use of the machine thou h itmay be roken at Will to remove tie platen. It will also be Seen that an adjustment of the spindle 55 will take up any lost motion that may exist between the end plates 35 of the platen frame.

From an inspection of Figs. 3, 4 and 5 it will be understood that the pivotal axes of the anti-friction rollers 7 and 15 are disposed diagonally and at substantial right angles to each other and dia onally to the plane of the s nacer bar 57 Wlth which they cooperate. T is s acer bar is enlarged as at 58 near each en thereof and is apertured at 59 for the reception of a pair of anti-fric tion rollers 7 or 15. The length of each slot or aperture 59 is slightly the diameter of two of the ro ers 7 0r 15 and the Width of each aperture or slot 59 is slightly greater than the distance from one corner or edge of one of the anti-friction rollers to the o posits diagonal corner or edge thereof. T e two cross rollers received in each aperture 59 are disposed with their diagonal corners inthe plane of the bar and with the rollers abutting. Apertured plates G0 aresecured by rivets 61 or otherwise upon opposite sides of the bar 57, the apertures `in the plates 60 registering rester than.

with the apertures 59 in the bar. The length ol the slot or aperture in each plate (3() coincides with the length ot' the associate aperture 5.() in (he har. The Width of each slot or aperture in the plate, however, is slightly less than that of the associate aperture 59 in the bar so that the plates (3() overlap the apertures 5S) at the top and bottom thereof and on opposite sides of the har 57 in order to receive. diagonally opposite edges or corners of the rollers 7 and 15 so as to retain the rollers against displacement from the apertures 5S) in the spacer bar. Adjacent. sides of each set of rollers abut as shown in Fig. 4, whereas the outer sides ot each set of rollers are ada ated to contact with the end Walls of the slot 59 in which they are received. l provide one of these spacer bars for each set of rollers 7 and 15 in order to maintain the rollers properly spaced apart.

From an inspection of Figs. 8 and 9 it. will be understood that each of the rollers 7 and 15 is slightl f concaved on its ends in order that the ent s ot' the rollers will conf tact only at or near the edges with the rails. It has been found in practice that it is difticult to cut the rollers so that they will not leave burs, teats or enlargements near the center at each end of the roller which results in imperfect bearing surfaces being formed at the ends of the rollers. By concaving the rollers in the manner described this dilticulty is eliminated and a true bearing face or edge at each end of the roller 1s provided.

A longitudinally extending slot 57 is provided in each space bar 57 for coperation with a horizontally disposed pin 57h (see Figs. 2, 3 and 4) which rojects throu h said slot. One of these pins is carried y each of the carriage rails 12 and 14 and assures the proper longitudinal positioning of the associated space bar at the limit of the travel of the carriage in each direction.

Inclined stop pins 57 (see Figs. 1, 2 and 3) project from the fixed rails 6 and 16 near each end thereof and ext/end into the paths of the space bars 57 to limit the movements thereof and prevent the rollers 7 and 15 from passing beyond the ends of the fixed rails.

Various changes may be Iliade in the details of construction and arrangements of parts Without departing from the spirit and sco e of my invention.

rtain of the fea-tures herein shown and not claimed are ,to form the subject of a se arate ap lication to be filed by me.

at I c aim as new and desire to secure by Letters Patent, is

1. In a typen'riting machine, the combination of acarriage truck made of two sections one wholly supported by the other, means rigidly and detachably connecting one of said sections to the other, and a platen shiftably mounted on one ot said sections to change the case position ol.E the platen.

i ln a typt-uniting nmchine, the combination oi a truck .section having engaging means at different points in the length thereol tot' coiiperation with el'lgaging means on anir ol a pluralityv ol cooperating truck sections oi different lengths, a second truck section, means thereon for detaehahly connecting saidsecond truck section' with certain of the engaging means on the first mentioned truck section depending on the length of the second truck section, and a platen shi'ltably mounted on the second truck section.

3.- In a typewriting machine, the combination of a truck section having engaging means at different points in the length thereof for cooperation with engaging means on any of a plurality of cooperating truck sections of different len ths, a second truck section` means thereon or rigidly and detachahly connecting said second truck section with certain olthe engaging means on the first mentioned truck section depending-on llNLlngtlL-oithe, second. ,truck-section, .and a platqnllftablanfl detesliihliginalmted 011 meqecittiek Section.

T111 a typcivriting machine, the combination of a truck section having' venga, ),'ing means at. different points in the length thereof for cooperation with engagingmeans on any of a pluralitir of cooperating truck sections of different lengths, a second truck section, means thereon for detachabl)1 connecting said second truck section to certain of the engaging means on the first mentioned truck section depending on the length of the second truck section, a platen .frame shiftably mounted on the second truck section to change the case position of the platen, and a platen mounted in said platen frame.

5. In a typewriting machine, the combination of a carriage truck made of tivo sections, means rigidly and detachably connecting one of said sections to the other a platen frame shiftably mounted on the detachable truck section to chan e the case position of the platen, and a p aten carried by said platen rame.

6. In a typewriting machine, the combination of a truck section mounted on the frame of the machine and provided with a lura-lity of sets of engagin devices at di ercnt points in the length tiereof for engagement with means on any of a pluralityr of cooperating truclt sections, a. second truck seetion, connecting devices thereon for detachablv connecting said second truck section to and ri 'dly holding it on said iirst mentioned ruck section, said connectin devices cooperating with certain of the se .s of engagingdevices depending on the length of the second truck section, a platen fra-me earried by' and shiftebly"connected with the -necting said truck sections, a

`tion carrying at leastr lourcooperative engaging devices for rigidly and detachahly conlaten frame shiftahlc on the second truer section to change the case position of the platen, and a platen carried by said platen frame.

9. In a typewritng machine., the combination of a truck section mounted on the frame of the machine and carrying at least. four engaging devices thereon, a. second truck section carrying at least four cooperative engaging devices for rigidly and detachabl)r connecting said truck sections, certain of said engaginca devices being fixed pins which cooperate willi andare seated in open-mouth hearings which constitute other of said engaging devices and certain other of said engaoing devices comprising spring-pressed loc ring pins which engage in locking openings in companion engaging devices, and a platen carried by the said second truck section.

10. ln a typewriting machine, the combination of two trucksections, means for detachably connecting said truck sections, said means comprising two fixed pins, openmouth hearing co erative with said pins, two spring-pressed eaded locking pins, and open-mouth bearings with locking openings for the reception of said sprang-pressed headed lockingpins.

11. In a typewriting machine, the combination of two truck Sections, means for detachably connecting said truck sections, said means com rising two lxcd pins2 openmout-h hearings co nerative with sind pins, tvvo spring-pressed leaded locking pins, and open-month bearings with locking openings for the reception of said SIIJrmg-pressed headed locking pins, the mouth of the bearings for the fixed pins openin in a different direction from the mouths o the bearings for the spring-pressed pins.

12. In a typewriting machine, the combination of a truck section having lugs with outwardly rejecting fixed pins thereon, a second truc section with side plates that bear against. the outer faces of said lugs and which has open-month bearings that co-act with said pins, spring-pressed ins that are carried by and moved longitudmally of one of said truck sections, enlarged locking heads on said spring-pressed pins, and openmoutli bearings that receive said springpressed pins, cach of said last mentioned open-mouth bearings having a locking recess for the reception of a locking head on one of said spring-pressed pins.

13. In a typewriting machine, the combination of a carriage truck comprising two dctachably connected truck sections one of which is adapted to turn on the other on disconneclible connections, and locking plus that lock one section rigidlyl to the other.

14. In a typewriting machine, the combination of a carriage truck comprising two dctachably connected truck sections, one of which is adapted to turn on the other on (.lisconneetible connections, locking pins that lock one section rigidly to the other, a platen frame shiftably mounted on one of said truck sections for upper and lower case writing, and a platen carried by the platen frame.

15. In a typewriting machine, the combination of a carriage, anti-friction rollers therefor, and a spacer for said rollers, said spacer comprising a flat bar with apertures or cut-outs therein to receive said rollers, and plates on opposite sides of' said bar and which constitute means to retain the rollers in said apertures.

16. In a typewriting machine, the combination of a carriage, cylindrical anti-friction rollers therefor, and a. spacer for said rollers, said spacer comprising a bar with apertures to receive said rollers, and plates on opposite sides of said bar and cooperative with each roller on opposite sides of diagonally o posite corners or edges thereof to retain tie rollers in said apertures.

17. In a typewriting machine, the oomhination of a carriage, cylindrical anti-friction rollers therefor, and a spacer for said rollers, said spacer com rising a` bar with apertures to receive sai rollers diagonally therein, and apertured plates on opposite sides of said bar to retain the rollersin said apertures, the Width of the aperture in each,

p ate being less in one direction than the diagonal axis of the roller received between said plates.

18. In a typewriting machine, the oomhination of a carriage, cylindrical friction rollers therefor, and a spacer for said rollers, said spacer com risin a bar with apertures near each end t ereo to receive two dia-goA nally disposed rollers with their axes of rotation at substantially right angles to each other, an apertured plate secured to the bar on each side of an aperture therein, the width of the aperture 1n each plate in one direction being less than the dlstance from one edge or corner of a roller to the opposite diagonaled e or corner, Whereb the rollers are retaine by said plates in tlie apertures in said-bar.

19. ln a typewriting machine, the comhiualion ol a carriage, cylindrical anti-friction rollers therefor, and a spacer for said rollers, said spacer comprising a bar with apertures near cach end thereof to receive two abutting diagonally disposed rollers with their axes of rotation at sul'istantially right angles to each other, the sides of the rollers adapted to hear against the end Walls of cach aperture, an apcrtured plate secured to the har on each side thereof and at an aperture therein, the Width of the aperture in each plate in one direction being less than the distance from one edge or corner of a roller lo the opposite diagonal edge orcor ner, whereby the rollers are retained by said plates in the apertures in said bar.

20. In a typewriting machine, the combination of a carriage, anti-friction rollers therefor, and a spacer for said rollers, said spacer com arising a bar with apertures to receive sai rollers, and plates on op iosite sides of said bar which overlap the Wa ls of the apertures to retain the rollers in said apertures.

21. In a typewriting machine, the combination of a substantially U-shaped platen frame comprising end plates united at the rear portionsI thereof, a platen, and constantly operative connecting` means for enabling the platen to assist in providin@r a rigid tie between said end plates at the orward end portions thereof.

22. In a typewriting machine, the colnbination of a substantially Ushaped platen frame comprising end plates united at the rear portions thereof, a platen, and shoulders or abutments that are rigidl connected with the platen and constantly ear against the end plates at outer sides near the forward ends thereof to form a positive tie or connection between the end plates.

23. In a typewriting machine, the combination of a platen frame comprising end plat-es each havin a two-part bearing, a platen, platen hea s each having a bearing that is received'in a two-part bearing in an end plate, and means associated with said platen heads and end plates for forming a positive connection or tie between the end plates.

24. In a typewriting machine, the conibination of a laten frame comprising end plates,platen earings in said end ates, a platen, and a platen head having a clrcurnferential bearing roove in a part thereof said groove receivlng the hearing in one of the end plates, the construction and arrangement of the parts being such that the platen and one of said end plates are positivelyI connected against relative displacement engitudinally of the platen.

25. In a typewriting machine, the combination of a platen frame com rising end plates, platen bearings in said en plates, a platen,

and av platen liead hnving :i cire-nn'ilerenti'al hearing groove` in u pnrl. thereof, said Igroove receiving the hearingl in one ol'- the end plates, u plnlen head a t the opposite end ot' the platen, n. spindle connected with said hist mentioned platen head, und n shoulder Jlorined on said spindle and hearing against the onler l side of the associated end plate ot the platen tranne.

26. ln n t.\ 1pewriting nnichine, the eoii'ihiniition ot a substantially U -fslmped platen traino comprising end plates connected at the rear end portions thereof und having platen hearings in said end lates, n platen, und relative-.1,5Y adjustable rigid bearing faces connected with the platen and adopted to bear against the outer sides ot' the end plates near the forward ends thereof to `constitute n rigid tie between the platen frame and platen.

2T. In a typewriting machine, the combination -of n platen drinne con'iprising end plates with platen bearings therein, a platen having platen heads, one of said platen heads having a part thereof formed with a circumferential groove therein in which the boerin in one of the end plates is received, the otier pinten head having n sleeve-like spindle that 1s seated in the caring of the other end plate, find a spindle with n shoulder thereon tlm-t 1s adapted to bear a ainst the outer side of the associated end p ate, said last mentioned s indle being adjust-ably connected with saitsleeve-like spindle, whereby a4 rigid tie is formed between the platen and. end plates.

2S. In a typewriting machine, the combination of n. carriage; bearing rails with o positely dis oscd rooves thereimespacer srving per ures t erein; and cylindrical bearing rollers loosely supported in the :ipertures in said spacer and having their axes at right angles one to another in said grooves, the diameter of each roller being slightl)T greater than the length thereof in the direction of its axis, the ends of the rollers being concave.

29. In a, typewriting machine, the co1nbination of a carriage; bearing rails with oppositelT disposed grooves therein; cylindrlcal bearing rollers mving their axes at right :ingles one lo another in Isaid grooves, theI dinlneler ol' each roller heing slightly greater llnin the length thereo'l" in the direelion oiI its axis. the ends o'l the rollers living concave; und a spacer l'or .said rollers, said spnirr comprising n, l'htt lnrr with aperturesl or entontsI therein lo receive said rollers, und pluies on opposite sides o'l said har and which eonstitute menos lor retaining the rollers in said apertures.

nl). ln atypewrtingnniehine,theiroinhination ot' a carriage; hearing rails with oppositely disposed groovesI therein; (c rlindrienl hearing rollers having their axes at right :ingles one to another in .said grooves,.Ihe diinneter of eneh roller being slightly greater than the length thereof in the direrlion of its axis, the ends of the rollers being concave; :1nd a spacer for said rollers, said spacer comprising a har with apertures to receive said rollers, und plates on opposite sides o'l said bar and cooperative with each roller on opposite sides of diagonally opposite cornersl or edges thereotl to retnin the rollers in said apertures.

Ell.4 Ina typewriting1nachine,the coinbinntion of. a carriage.; bearingl rails with oppositely disposed grooves therein; cylindrical hearing rollers having their axes :it right :ingles one to another in said grooves, the` diameter ot euch roller being slighthr greater than the len rth thereof in the direction of itsI axis, the en( s of t-he rollers being concave; 11nd a. spacer tor said rollers, smid spacer eon'iprising a. bnr with apertures to receive said rollers diegoi'ially therein` und. apertnred plates on opposite sides of said bar to retain the rollersl in the apertures in said bar, the width of the e ertures in erich plate being less in one direction than the diagonal axis ot the rollers received between the plates.

Signed et the`boro'ugh of lllzinhnttan, city of New York, in the county of New York, and State of New York, this 15th dey ot lllerch A. D. 1907.

E. M. WELLS, M.. F. HAUNwEmni.

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