US1826074A - Typewriter ribbon device - Google Patents

Description

Get. 6, 1931. I c HOCHMAN 1,826,074

TYPEWRITER RIBBON DEVICE Filed Nov. 8,1930 2 Sheets-Sheet 1 4+ lNVENTOR Lia/5a; C Ho /517mm 4a VQMLM L, Mm/Z, v 1

ATTORNEYS Oct. 6, 1931..

J. C. HOCHMAN TYPEWRITER RIBBON DEVICE Filed Nov. 8, 1930 2 Sheets-Sheet 2 i! Ii INVENTOR Jlfikw 65170016122022 @mmvmmawm ATTORNEYS Z38 Patented Oct. 6, 1931 PATENT OFFICE JULIUS C. HOOHMAN, OF NEW YORK, Y.

' TYPEWRITER RIBBON DEVICE Application filed November 8, 1930. Serial No. 494,239.

My present invention relates primarily to typewriting machines, more particularly to the instrumentalities thereof and associated therewith for producing simultaneously two 5 or more separate typed copies, such as letters and the file copies thereof.

It is a primary object of the invention to render serviceable any of various conventional makes of typewriting machines without any alteration whatsoever in the construction thereof, for simultaneously producing by the use thereof two or more inked original typewritten copies.

Another object is to provide means for accomplishing the above result which may be set or arranged for use with as great or -greater facility than carbon paper, which wholly obviates the special precautions and operations required in effecting erasures in i the course of typing where carbon paper is used, which is more economical than carbon paper and which requires less frequent handling for removing and replacing the wear element used according to this invention in place of carbon paper.

Another object is to provide for accomplishing the above result an auxiliary ribbon device of extremely simple construction, wholly devoid of operating 'mechanism or even of hinged or relatively slidin parts and which nevertheless automatica 1y exposes continually changing areas of ribbon to type impact and which throughout action automatically maintains the ribbon in sufliciently taut condition for best service, and

this even under the ribbon elongation incurred in wear.

Another object is to provide an auxiliary ribbon holder of the above type, from which 40 the ribbon may be readily removed and upon which a new one may be emplaced by simple manipulation without danger of smudging the fingers.

Another object is to provide an auxiliary r ribbon frame of the above type, which can be formed of a single stamping, which in use can be readily applied upon or removed from the machine without any fastening whatsoever, and which co-ordinates with the parts of the machine to automatically assure proper co-relation for effective use.

Another object is to provide an auxiliary ribbon carrier, which in nowise interferes with the normal operation of the paper clips, bail or other paper holding means or the line spacer, and which is free from interference with the primary ribbon mechanism.

Another object is to provide a frame of the above type which readily admits of the use therewith of additional frames carrying additional ribbons for the preparation simultaneously of more than two copies,

A featureof the invention is the use of an open frame, co-ordinated with the platen and carrying a length of ribbon, the coacting parts of the typewriter construction serving to position said frame against inadvertent shift and yet involving sufiicient shift of the frame with its carried ribbon incidental to use of the machine, to avoid exposure of the identical ribbon area to successive type impacts.

' In a preferred construction, the frame is a unitary generally U-shaped metal piece, preferably a stamping laid upon the platen with its cross bar longitudinally thereof, a type-- writer ribbon length being releasably attached to said frame to bridge between the free ends of the arms thereof, which extend downward from the bar and are preferably curved to conform to the platen.

Another feature is the conformation of one or more stops as integral parts of the frame,

limiting the shift of the frame longitudinally of the platen, preferably to substantially the maximum spacing between the centers of typed characters.

Another feature is the provision of notches or stops integral with and upstanding from the frame, for coaction with the paper clips or other parts of the machine, to limit up and 90. down shift of the frame with its ribbon.

Another feature is the loose mount by simple superposition of the frame upon the platen, to assure limited shift either longitudinally of the platen or up and down in (11- v rection peripherally of the platen or both, for automatic shift of the frame under various lmpacts occurring in the use of the typewriting machine.

Another feature is the construction of the 109 frame of spring metal affording limited resilience' and the limited deformation of said frame in initially tightening the ribbon, which thereby is maintained taut even after wear.

Another feature is the metal ti ping of the short lengths of replacement rib on and the conformation of the ribbon carrying arms of the frame for camming coaction in the application of the ribbon for the tauteningpurposes set forth.

. In the accompanying drawings in which is shown one of various possible embodiments of the several features'of the invention,

Fig. 1 is a perspective view showing the carriage of a t pewriting machine indicating the manner 0 use of my apparatus, L

Fig. 2 is a top view with parts broken away, of a platen with my apparatus in place,

Fig. 3 is a view in transverse section taken on line 3-3 of Fig. 2,

Fig. 4 is a view taken on line 4-4 of Fig. 2,

Fig. 5 is a perspective view of my auxiliary ribbon frame with a ribbon attached,

Fig. 6 is a fragmentary view on an enlarged scale showing the ribbon attachment means,

Fig. 7 is a transverse sectional View on the line 77 of Fig. 6,

Fig. 8 is a fragmentary front view of the ribbon carrying arm,

Fig. 9 is a transverse section on line 99 of Fig. 6,

Fig. 10 is a perspective view of a secondary ribbon frame, and; i

Fig. 11 is a perspective view showing the auxiliary and a plurality of secondary ribbon frames in the nested relation in which they are employed for preparing more than two original copies.

Fig. 1 of the drawings indicates illustratively the carriage of an Underwood typewriting machine showing the carriage frame 10, the platen 11, with the operatin knob 12 thereof, the line spacer lever 13, t e primaryeribbon spools 14 with the ribbon shift device 15 in front of the same and the paper clamping means shown as clip arms 16 formed each with a mount bar 17 unitary therewith, having eyes 18 and 19 at the ends thereof encircling the carrying bar 20. The roller end 21 of the aper clip is displaced by integral offset 22 rom the eye end of the clip arm 16. For use of my invention, in its I preferred application, the paper cli s of the typewriting machine ust referre to, are set in their usual position for holding letter pa er of standard width, as shown in Fig. 1. he auxiliary ribbon holder, as best shown in Fig. 5, may comprise a unitary sprin metal stamping F having a bar 25 of lengtb nearly equal to that of the platen and unitary arms 26 extending at right angles from the ends thereof and curved to conform to the curvature of the platen and to the ends of which the ribboniis attached in manner to'be hereinafter desxzribed. The longitudinal bar 25 of the frame preferably has an outstanding stiffening flange or fin 25a extending substantiallyk the length thereof and at an angle thereto. The stiffening flange is preferably provided'with a central finger tab 27, and near the endsfit has upstanding short stop elements 28 and 29, the extreme faces of which are spaced at'a distance but slightly less than the distance between the clip eyes 19 of the two paper clips 16 of the machine. The curved arms 26 are provided referably at their inner edges with integraF upstandin ledges 30 which stiffen said arms, said le ges being notched as at 31.

By the construction above described, it is clear that when the frame is laid u on the platen of the typewriter, the stop pleces 28 and 29 will aid in positioning the said element and by reason of their spacing will afforda limited freedom of displacement of said frame longitudinally of the platen through the width of approximately the distance between centers of typed characters. The distance between the inner ledges 30 on the arms of the ribbon holder being preferably somewhat in excess of the greatest width of paper used in the machine, when the hlplde'r is positioned, as just described, upon t e clips, the offsets 22 of which will'readily enter the notches 31 in the ledges 30 and thus limit the displacement of the frame in a peripheral or up and down direction.

Special clip means is preferably provided for releasably securing the ribbon ends to the arms of the frame. In a preferred clip construction shown, the arms are sharply tapered at their free ends 35 and the ribbon R is provided at each end with a sheet metal tip piece 36. The ribbon clip is preferably crimped at its extremity in a bead 37 claspplaten, these arms will clear the paper ing the ribbon end, and the tip has parallel v slits 3S and 39 of unequal length, to accommodate the tapered arm end 35, the area 40 of the tip being embossed or depressed between the slits 38 and 39 to afford a pocket or depression trapezoidal in form to accom-- modate the tapered arm end. Preferably, the

tab end of clip 36 is depressed at the edge determined by oblique edge 51 of the trapezoidal depression, so that said tab lies slightly below the ribbon clasping end of the tip, and

slightly above said trapezoidal depression, as

best shown in Fig. 9. A stop shoulder 41 on arm 35 snaps under the upper slit 38 when the clip is applied and releasably latches the same in lace.

The ri bon length with its tips is a distinct article of manufacture and is of length properly co-ordinated with that of the carrying frame. In the application of the clips over the tapered holder arms, it will be apparent that the clips are cammed apart, as they are drawn over the oppositely tapering cams 85, thereby exerting tension upon the connecting ribbon and a strain upon the resilient holder frame, drawing the arms of the latter slightly together. I

In operation, the typewriter paper clips 16 are rotated to clear the platen and the frame, as shown in Fig. 5, equipped with its ribbon as there shown, is used by simply depositing the same upon the platen of the typewriter with its ribbon R underneath the front sheet and on top of the second sheet of paper. No particular care need .beexercised in applying the device since the stops 28 and 29 will naturally rest-.upon bar 20 and in the space between eyes 19 of the two paper clips 16. The device is positioned at random, within the limits provided for, between the paper clip or other stop means, which thus affords inherent .iriation in the initial positioning of the imp.s ct receiving areas of the ribbon B. When the paper clips 16 are now set, the offset arms 22 thereof will enter the notches 31 of the frame.

In use, the typeimpact through the primarv ribbon will imprint the top sheet as usual and through the secondary ribbon R cause a similar ink imprint upon the second sheet,,or, if desired, a third imprint upon a sheet of onion skin paper (not shown) interposed between thetwo sheets, immediately under the top sheet. The successive jolts to which the carriage of a typewriting machine is subjected during operation, and which are imparted more especially in line shift, and in carriage return after the end of each line will cause the auxiliary ribbon frame to shift longitudinally of the platen between the limits imposed by the ' contactof stops 28 and 29, with the paper clip eyes 19, and peripherally of the platen or up and down between the limits imposed by the sides'of notches 31 with the paper clip ofi'set 22. As a consequenee, the effective area of auxiliary ribbon R exposed to type impact shifts both longitudinally and transversely, affording more uniform wear of the ribbon with considerably lengthened life thereof. In the wear of the ribbon and the consequent elongation thereof, the tantness is nevertheless maintained because the resilience of the carrying frame exerts continuous pull upon the ribbon. Thus, substantially the entire serviceable area of the ribbon is efieetively used, and this is accomplished without the need for any manual readjustment operation. When the ribbon is worn out, it is easily replaced by simply drawing upon the exposed ends of the ribbon tips 36 and pulling them off the respective carrying arms 26. A. new ribbon length, equipped with termiunal clips 36 is emplaced by slipping said clips over taper ends 35 of the arms to the limiting latching position determined by stop shoulder 42 and latch 41. The ribbon is not touched by the fingers in this replacement and replacement is thus a clean, expeditious and convenient operation.

In Fig. 10 is shown a secondary frame similar to the auxiliar frame shown in Fig. 5, but differing there rom largely in the omission of the ledges 30 and of the'stops 28, and affording a handle tab 27 at one side of the middle of longitudinal bar 25,. The secondary frame readily nests with the auxiliary frame of Fig. 5, by superposition of bar 25 upon bar 25 and of web 25b against web 25a, in which position the inner corners 50 of the secondary frame will rest upon the upper edges of ledges 30 on the auxiliary frame F as best shown in Fig. 11 i The secondary frame S of Fig. 10 is used for simultaneously preparing a third inked ribbon copy and one or more additional secondary frames may be positioned, asbest indicated in Fig. 11 to provide a fourth or fifth inked ribbon copy. The finger tab 27 of the secondary frame is offset as shown, for facility in application and removal of the frame without interference from tab 27 of the auxiliary frame. In Fig. 11 is shown an additional secondary frame'the finger tab of which appears at 27 at the side of tab 27 opposed to that of tab 27. Obviously the two secondary frames shown can be'cut with the identical die, but the curving or shaping die is applied from one side of the blank in one case, and from the opposite side of the blank in the other case.

It is obviousthat. in use the auxiliaryframe would be inserted immediately over the lowest of the sheets to be typed, the first of the secondary frames would be hung upon the auxiliary frame as set forth and lie over the second sheet from the bottom, the next auxiliary frame would be similarly hung to lie over the next sheet and so forth within the limits of the machine. The ledges 30 of the auxiliary frame are sufficiently high to sustain as many secondary frames as desired, and it will be understood that in the case of a mechanically or electrically driven typewriting machine, whether automatically or manually controlled, as many as ten or more originals can be typed in one operation.

It is'understood that the face of the ribbon length may be provided, if desired, with .edly or permanentlv clamped, u'itl adaptation to the Remington, Royal and other types of machines.

lVhile in the preferred construction, the frame is a separate and distinct element simply laid upon the platen,and removed therefrom as desired, it is understood that the typewriting machine could, within the scope of the invention, embody the frame as a part built into its construction, such frame in that case being preferably afforded three degrees of freedom ofmotioifrelative to the structure of the machine, including a lifting freedom to permit insertion between sheets of paper, a limited freedom of movement longitudinally of the platen and limited freedom of movement peripherally of theplaten.

The use of my ribbon device does not preclude the simultaneous production, desired, of one or more carbon copies in addition to the two or more ribbon copies produced, as above set forth, sly ribbon evic moreover admits of the production of Mesh o case the primary'ribbon device or chine out of order, or the r Worn out and no fresh one placeable ribbon, it is Til the invention from its broadest a. provide a very inexpensiv i struction of resilie t wire for frame and d replaced bon under tension mg a unit discarde 1 t after the ribbon n l llhile the inven on in bodimcnt is priin concerned iliary ribbon means r producin ra copies, it will be understood that in of the ribbon R, a'ribbon of carbon paper 0 other fabric of sullicient s ngth could be used to produce carbon copies, and the term rib hon as used in the claims is not necessar ly to be limited to an inlred ribbon but is to include Within its scope other types of tape through Which an imprint is produced under mechanical impact.

Having thus described. my invention, what I claim as new and esire to secure by Letters Patent is:

1. In a typevrritingg' machine, including a carriage a platen, a ribbon and feed mechanism therefor, an auxiliary ribbon carrier, comprising a frame piece niovablv rest-inn; upon the platen and having limited longitudinal freedom of movement tl'ierealong, said carrier having a ribbon mounted to extend in front of the platen.

2. In a typvvru'zing; machine, including a carriage having a platen, paper clips adapted ing the auxiliary ribbon and having stop ele ments contiguous to the paper clips, to limit lateral ran e of positioning of said frame. i. ln a typervriting machine, including carriage having a platen, a ribbon feed device and hinged paper clips mounted adjacent the ends of the platen; the combination therewith of an auxiliary ribbon holder comprising unitary metal frame extending lengthwise of the platen and having stop means contiguous to the paper clips 'or limiting longitudinal displacement c said frame, said frame N u conformed to the curvature or the platen along the ends of the latter, and ribbon extending along the between the espective arms. the chara platen. a device, and hinged b er clips ends 0 no i etch; the of an auxiliary ribbon longitudinally of platen and having extending between the pa r clips and in contiguitythereto, said holder having" later l arms curved in con forznity With the r and a ribbonz'ittached at its ends to s us, said arms having mounts thereon 04. carrying additional ribbon holder.

in a typewrit machine of the character incl lf iagc having a platen, a ribbon reed dev id hinged paper clips mounted. adjacent the ends ofthe platen; the combination illlEZGWi i. of a. carrier for a plu rality simultaneously acting auniliar}, ribbons, said attacl onoprising an ou iliary ribbon holder 1 anie extending lonnitudinally of the platen and resting thereupon, having parts extending in contiguity to and between the clips, said holder having lateral arms substantially conformed to the periphery of the platen and beyond the paper clips, said arms carrying a ribbon thGIGbGlZWGCD, said arms having upstanding stops and a second ribbon carrier removably carried by said stops.

7. In a tvpvvriting machine of the char acter including a carriage having a platen, a ribbon feed device, and hinges paper clips mounted adjacent the ends of the platen; the coinbir there: of a carrier for a plusineultaneousl v acti auxiliary including la ral a e havi holder lOO aeaaore ribbons, said carrier comprising a frame extending longitudinally of the platen and resting thereupon, and having parts extending in contiguity to the clips, said frame having lateral arms substantially conformed to the periphery of the platen and beyond the paper clips, said arms carrying a ribbon therebetween, said arms having upstanding stops and a secondary-ribbon carrier removable depeding from said stops over said frame, each of said ribbon carriers having an upstanding handle tab near the middle thereof, said handle tabs out of alignment with each other.

8. In a typewriting machine having a platen and a primary ribbon mechanism, an auxiliary ribbon associated with the platen in back of the primary ribbon, a carrying frame for said auigiliary ribbon, and stop means co-ordin ating' said frame relative to the machine structure to permit and limit movement of the frame with its ribbon longitudinally of the platen through the width substantially of a type character.

9. In a typewriting machine having a platen and a primary ribbon mechanism, an auxiliary ribbon device associated with the platen and having a ribbon element in back of the primary ribbon. said device in cluding a carrying frame for said auiriliary ribbon, and stop means coordinatingsaid frame relative to the machine structure'to permit of a limited range of positioning of the frame with its ribbon peripherally of the platen.

10. In a typewriting machine having a platen and a primary ribbon mechanism, an auxiliary ribbon device associated. with the platen and having a ribbon element in back of the primary ribbon. said device including a carrying frame'for said auxiliary ribbon and stop means co-ordinating said frame relative to the machine-structure to permit and, limit movement of the frame with its ribbon both longitudinally and peripherally of the platen.

'11. In a typewriting machine having a platen and a primary ribbon mechanism, an auxiliary ribbon device associated with the platen and having a ribbon element in back of the primary ribbon, a carrying frame for said auxiliary ribbon. stop means coordinatingi said, frame relative to the machine structure to permit and limit lateral movement of the frame and further stop means co-ordinating said fame relative to the machine structure to permit and limit movement of the frame and ribbon peripherally of the platen.

12. In a typewriting machine of the charactcr comprising a carriage frame having a platem'hinged paper holding means, each including a metal part longitudinally of the platen, and a primary ribbon in front of the platen the combination therewith of an auxlliary ribbon device comprising a frame resting upon the platen, having a longitudinal bar and arms extending downward from said bar, an auxiliary ribbon carried on said arms, said frame having an upstanding notched element straddling said holding means in set position of the latter and affording clearance for limited up and down displacement of said ribbon device in operation of the machine.

13. In a typewriting machine of the character comprising a carriage having a platen thereon, paper clips pivotally mounted on said carriage,'and including each an offset metal part longitudinally of the platen; the combination therewith of an auxiliary ribbon device including a frame to rest upon the platen. said frame carrying a ribbon in co-ordinated position relative to the primary ribbon, said frame having integral stop means between the paper clip mounts to limit displacement of the device to the width substantially of one type character. said arms having notched elements straddling the oil?- set part of the respective paper clips to permit and limit movement of the frame circumferentially of the platen during use. a

. 14. In a typewriting machine of the character comprising a carriagehaving a platen thereon and hinged paper clips; the combination therewith of an auxiliary ribbon frame freely disposed upon the platen and carrying a ribbon. said frame having integral parts 'coacting with the paper clips to permit limited shift of said frame longitudinally of the platen. said frame having other stop parts coacting with said clips in set position of the latter to permit and limit displacement of said frame-in a direction peripherally of the platen.

15. As an article of manufacture. an auxiliary ribbon holder for a tvpewriting machine, said holder comprising a generally U-shaped frame including: a longitudinal bar adapted to the length of the typewriter platen and end arms extending angularly with respect thereto and having curvature adapted to that of the platen. said end arms having means for releasable attachment of a typewriter ribbon to extend therebetween, said fame having unitary'stop elements near the ends thereof. for coaction with parts of a typewriting machine to limit lateral shift thereof during use.

16. As an article of manufacture. an auxiliary ribbon holder for a tvpewritinq machine. said holder comprising a generally U-shaped frame including a longitudinal bar adapted to the length of the typewriter laten and end arms extending angularly with respect theretoand having curvature adapted to that of the platen, said endarms having means for releasable attachment of a typewriter-ribbon to extend therebetween, said frame having elements serving as mounts for a secondary ribbon carrier.

17. As an article of manufacture, an auxiliary ribbon holder for a typewriting machine, comprising a unitary sheet metal stamping including a longitudinal bar, lateral arms curved to conform to the curvature of the platen, said longitudinal bar having a longitudinal outstanding flange serving to stiffen the same, said flange having integral stop tabs near the ends thereof.

18. As an article of manufacture, an auxiliary ribbon holder for a typewriting ma chine, comprising a unitary stamping having a longitudinal bar, and integral lateral arms extending at an angle relative thereto and curved in conformity with the platen, said lateral arms having integral therewith outstanding fiange pieces serving to stiffen said arms.

19. As an article of manufacture, an auxiliary ribbon holder for a typewriting ma chine, comprising a unitary stamping hav ing a longitudinal bar, and integral lateral arms extending at an angle relative thereto and curved in conformity with a platen, said lateral arms having integral therewith outstanding flange pieces serving to stiffen said arms, said flanges also having notches therein, adapted for coaction with the paper holding means of a typewriting machine.

20. As an article of manufacture. an auxiliary ribbon holder for a typewriting ma chine, comprising a unitary metal piece including a longitudinal bar, lateral arms curved to conform to the curvature of the platen, said longitudinal bar having integral stop conformations near the ends thereof, said lateral arms having upstanding stop conformations, said conformations respectively limiting movement of the ribbon holder longitudinally and peripherally of the platen.

21. As an article of manufacture. an auxiliary ribbon holder for a typewriting machine, comprising a unitary sheet metal stamping including a longitudinal bar, lateral arms curved to conform to the curvature of the platen. said longitudinal bar having an outstanding flange serving to stiffen the same, said flange having integral stop tabs near the ends thereof, said lateral arms having integral therewith outstanding flange pieces near the inner edges thereof scrvin to stiffen said arms, said flan es also having notches therein, said stop tabs and notches limiting movement of said frame reran om outstanding flanges, the flange of said longitudinal bar having unitary stop pieces" substantially at the ends thereof and a unitary handle piece substantially/at the middle thereof, the ends of said arms being conformed for mounting the ends of a typewriter ribbon.

23. As an article of manufacture, an aux iliary ribbon carrying frame. comprising a unitary sheet metal element, having a main bar and lateral arms unitary therewith, curved for conformity with ,a platen, said longitudinal bar-having a stiffening flange extending nearly the entire length thereof, said arms having stiffening flanges, the ends of said arms being conformed for carrying the ends of a typewritten ribbon and extending beyond said stiffening flanges.

24. An auxiliary ribbon holder comprising a unitary sheet metal U-shaped frame, with a relatively long base bar and shorter legs, said legs curved for conformity with a platen, the free ends of said legs having ribbon mounting and tautening conformations, said frame having limited resilience for maintaining the tautness of the ribbon said holder having means adapted to cooperate with typewriter carriage structure for limited range of positioning relative to the platen, thereby to increase the effective wear area of the ribbon.

25. An auxiliary typewriter ribbon holder including a unitary U-shaped sheet metal frame having end arms, said frame having slight resilience in the plane of the length thereof, a ribbon coacting with the free ends of said arms, said ribbon having metal tips fixed thereto, and having finger tabs at the free ends thereof, the tips and arms having complementary camming and latching conformations, whereby the arms are drawn slightly together in the application of the ribbon to tauten the latter and the tautness of the latter is maintained under wear by the resilient return of the arms.

26. As an article of manufacture, a length of typewriter ribbon in the order of that of a typewriter platen, said ribbon having a metal clip secured to the extremity thereof, said clip having a finger tab at the outer end thereof and being conformed between said tab and said ribbon attaching portion for quick detachable coaction with a ribbon mounting arm.

27. As an article of manufacture, a type writer ribbon tip comprising a sheet metal piece, having means clamping the extremity of the ribbon, said sheet metal piece having a pair of parallel openings of different length, the metal between said openings being slightly countersunk to accommodate a sheet metal carrying tongue.

28. As an article of manufacture, a set of ribbon holders comprising a U-shaped frame adapted to the general contour of the typersaenra writer platen and having means for holding a typewriter ribbon against the free ends of the legs thereof, and having upstanding flanges at the legs thereof, secondary U- shaped frames-generally similar in construction to said first frame, said secondary frames having out-standing parts adapted to rest upon the upper edges of said flanges.

29. In a typewriting machine, including a carriage, a ribbon and a feed mechanism therefor, an auxiliary ribbon carrier comprising a holder'movably resting upon a carriage element with limited longitudinal freedom of movement, said carrier having a ribbon mounted to extend contiguous to the platen and along the writing line of the machine.

30. In a. typewriting machine including a moving carriage and a primary ribbon, an auxiliary carrier comprising a holder loosely resting upon a carriage element, said carrier having a ribbon mounted to extend contiguous to the platen and along the writing line of the machine, said-holder having stop means adapted for coaction with part of the typewriter carriage to limit the longitudinal movement of said holder relative thereto.

31. In a typewriting machine including a moving carriage and a primary ribbon, an auxiliary carrier comprising-a holder loosely resting upon a carriage element, said ca'rrier having a ribbon mounted to extend contiguous to the platen and along the writing line of the machine, said holder having stop means adapted for coaction with part of said carriage to limitthe movement of said holder relative to the carriage in an up and down direction whereby wear of the ribbon is correspondingly distributed.

32. In a typewriting machine including a moving carriage and a primary ribbon, an auxiliary carrier comprising a holder loosely resting upon a carriage element, said carrier having a ribbon mounted to extend contiguous to the platen and along the writing line .of the machine. said holder having stop means adapted for c'oaction with part of the typewriter carriage to limit the longitudinal movement of said holder relative thereto, said holder having additional stop means adapted-for coaction with a part of said carriage to limit the movement of said holder relative to the carriage in an up and down direction.

33. In a typewriting machine, a moving carriage, mounting means carried upon said carriage, a plurality of independent nesting ribbon holders having means for releasable coaction with said mounting means, each ribbon holder including a pair of ribbon carrying arms, each of said holders having a typewriter ribbon between said arms, said ribbons in mounted position of said holders being contiguous to the platen and along the writing line of the machine.

84. In a typewriting machine, a moving carriage, and a plurality of independent ribbon holders, each ribbon holder including a pair of ribbon carrying arms, removably resting upon a carriage element and in juxtaposed relation, each of said holders having a ribbon between the arms thereof mounted to extend contiguous to the platen and along the writing line of the machine.

In a. typewriting machine including a carriage and a platen, a holder, said holder comprising a frame loosely resting upon a carriage element, having lateral arms carrying an auxiliary ribbon, said holder during use having a limited range of alternative positions longitudinally of an element of the carriage.

36. In a typewriting machine, removableribbon means comprising a frame having a ribbon longitudinally thereof. said frame being constructed and arranged to be substantially self-locating with respect to the typewriter carriage structure upon emplacement of said frame and one or more secondary frames, each having a ribbon extending longitudinally thereof, said secondary frames each having parts co-ordinated with parts of said first frame for operative positioning of said secondary frames.

37. As-an article of manufacture, an auxiliary ribbon holder for typewriting machines.

.pocket for the ribbon carrying arm.

39. As an article of manufacture,'an auxir iary ribbon holder for typewriter machines comprising a body portion and lateral arms carrying a length of ribbon between them,

said holder having positioning eleme nts' adapted for releasable coaction with the clamping means that serves to hold the paper against the platen of a typewriting machine, to be maintained by said clamping means with the ribbon along the typing lineof the platen.

40. As an article of manufacture, an auxiliary ribbon holder for a tvpewriting machine, said holder comprising a generally U-shaped frame including a longitudinal bar adapted to the length of the typewriter platen, said frame being constructed and arranged to be substantially self-locating with respect to the typewriter carriage structure within predetermined limits of longitudinal movement, said holder having retaining elements adapted for releasable coaction with the paper clamping means of a typewriting machine, to

be restrained against rotary displacement by A the latter due to the frictional drag of the paper enthe platen in the retetien of the 1, seme, whereby in use the typing impact will be distributed ever a range of aflxihary rib- 41,- As an article pf manufactfire; a" length of typewriter ribbonin the'erder of that pf a typewriter platen; said ribbon having a metal clip .seeiired to the extremity thereef;

said clip having a fingertab at theoutr end' thereof and bein conformed between said tab and said ribbon attaching portion for- I quick detachable (reaction with a ribbon mounting arm, said clip including stop means I tionwith such arm.

adjacent the edge thereof for latching coac- Signed'at NewYork city in the county of New York and State of New York this 7th dayof November, A. 13.1930.

' JULIUSC.-HOGHMAN.

Images