US1028922A - Type-writing machine. - Google Patents

Description

J. WALDHBIM. TYPE WRITING MACHINE.

APPLICATION FILED MAY 27, 1911.

1,028,922. Patented June 11, 1912.

2 SHEETS-SHEET 1.

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1-ll5 ATTORNEY COLUMBIA FLANOGRAPH C0,,wA51-UNUTON, D. c.

J. WALDHEIM. TYPE WRITING MAGHINE.

APPLIOATION FILED MAY 27. 1911.

" Paisented June 11, 1912.

2 SHEETS-SHEET 2.

V. E N R n T T A v E UNITED STATES PATIENT OFFIQE.

JOHN WALDI-IEIM, OF NEWARK, NEW JERSEY, ASSIG-NOR, BY MESNE ASSIGNMENTS, TO UNION 'IYPEWRITER COMPANY, OF JERSEY CITY, NEW JERSEY, A CORPORATION OF NEW JERSEY.

To all whom it may concern:

Be it known that I, JOHN WALDHEIM, citizen of the United States, and resident of Newark, in the county of Essex and State devices to be hereinafter described and particularly pointed out in the claims.

In carrying out my invention in the present instance, I provide two vibrators or vibratory ribbon guides or carriers arranged one behind the other and adapted to be separately vibrated at will by devices actuated from the printing keys.' A two-color or other character of ribbon passes from one ribbon spool horizontally through the guiding slots in one vibrator, and thenis guided downward at an angle over a guiding device vor turning bar and thence upward at a corresponding angle to the other vibrator, passing horizontally through the slots therein and thence to the other ribbon spool. By thus guiding the ribbon in triangular fashion, its horizontal printing portions present opposite edge portions, fields or colors of the ribbon to the printing point when the vibrators controlling these opposite edge portions are operative; also the actuating devices are adapted to be readily disconnected from both vibrators so f that neither horizontal printing portion of the ribbon will be presented to the types,- thus facilitating the preparation of mimeograph or stencil sheets. 1

My invention will be more fully described in connection with the accompanying drawings, wherein Figure l is a vertical front to rear sectional view of a Monarch typewriting ma- Specification of Letters Patent.

Application filed. May 27, 1911.

TYPE-WRITING MACHINE.

Patented June 11, 1912.

Serial No. 629,795.

3 is a front elevation of the ribbon vibrator.

Fig. 4 is a fragmentary front elevation showing the upper part of said machine and the ribbon vibrating and guiding devices.

Fig. 5 is a detached perspective view of the guide for the ribbon vibrators. Figs. 6 and 7 are operative views of the ribbon vibrators showing respectively the rear and front vibrators in operated positions. Fig. 8 is a plan view partly in section of the ribbon operating lever and vibrators. Fig. 9 is a fragmentary view of a paper ribbon.

As shown in Fig. 1 the main frame of the machine comprises a base 1, posts 2 and a top plate 3. Key levers 4 are fulcrumed on a plate 5 in the rear part of the base, each key lever being provided with a restoring spring 6 and having pivoted to it at 7 a sublever 8, said sub-lever being slotted at its lower end to cooperate with a fixed abutment 9 and having its upper end connected by a link 10 to a type bar 11 pivotally supported on a hanger 12 secured to a segment 13 which is adapted to shift to change case in the usual or any other suitable way. The type bars when actuated cooperate with the front face of a rotary platen 14 supported on a platen frame or carrier comprising end bars 15 and also a connecting slide bar 16 which is grooved at its upper and lower faces to cooperate with anti-friction balls 17, saidballs also cooperating with fixed grooved track-ways 18 secured to standards 19 rising from the top plate. Theplaten carrier is connected by a strap 20 with a spring drum or power device 21 which constantly urges it leftward, the leftward or letter spacing movements of the carrier being controlled by escapement devices of the usual sort (not.

herein shown), certain of said devices being connected by a link22 with the central arm 23 of the universal bar frame which further comprises a rock shaft 24 pivoted in the base 1, said frame carrying a universal bar 25 which underlies the key levers. The universal bar frame is provided with the usual restoring spring 25 said spring also serving as a restoring spring for the vibratory ribbon devices hereinafter described.

As herein shown a ribbon '26, divided longitudinally into fields a and b of diiferent colors or characteristics is supported on horizontal ribbon spools located one at each side of the machine and forward of the platen. Each ribbon spool comprises a core 27 and upper and lower flanges 28 and 29. The ribbon spools are preferably of the ordinary Monarch constructionexcept that the upper flange of each spool is formed with an integral circular raised portion 30 Which is cupped out or depressed to provide a finger piece or button by which the spool may conveniently be rotated. The ribbon spools are supported at the upper ends of shafts 31 which at their lower ends carry beveled pinions 32 constantly meshing wit beveled pinions 33 at the forward ends of horizontal shafts 34. Each shaft 34 carries at its rear end a beveled pinion 35 Which is adapted to mesh with an actuating pinion 36 secured to a driving or power shaft 37 connected by devices comprising intermeshing pinions 38 and 39 with the spring drum 21 in such wise that during leftward letter space movements of the carriage the shaft 37 will be automatically rotated. Said shaft is movable endwise to connect the pinions 36 in alternation with their cotiperative pinions 35 so as to turn the ribbon spools alternately to wind the ribbon back and forth.

Novel vibrating devices are provided for moving the printing portion of the ribbon up and down at printing operation, said devices comprising two parallel ribbon vibrators, carriers or guides numbered respectively 40 and 41, said vibrators being platelike in form and thevibrator 41 being ar- "ranged behind the vibrator 40 on a stationary guide which comprises uprights 42, a connecting cross bar 43 and lateral ears 44 (Fig. 5) which ears are secured by screws 45 t0 the top plate of the machine. The uprights 42 are provided with sets of parallel grooves 46 and 47, the grooves 46 receiving the side edge portions of the vibrator 40 and guiding and controlling said vibrator both while it is stationary and during its up and down movements; and the grooves 47 oooperating likewise with the vibrator 41. The body portion of the vibrator 40 is provided at its edges with shoulders 40 which normally rests on the tops of the uprights 42,

serving as stops to limit the downward movement of the vibrator and also maintaining it in normal position. The vibrator 41 is similarly provided with arresting shoulders 41*. These shoulders maintain the vibrator so that the printing portions of theribbon never drop as low as the tops of the uprights 42, catching of the ribbon during vibration being thus avoided.

The vibrators 40 and 41 are of like construction but are oppositely turned or faced. The vibrator 40 is shown detached in Fig. 3 from which itwill be seen that the vibrator is plate-like in form and has an upward extension 48 formed with a guide slot 49 having a side opening to permit the entrance of the ribbon. Said vibrator has also a lateral and inclined extension 50 at the right-hand side provided with an in clined guide slot 51 also having'a ribbon opening. Centrally the body of the vibrator is formed with a vertical slot 52 which is widened at its lower end, providing a horizontal shoulder 53. At the lower end the vibrator 40 is cut away as indicated at 54.

Referring to Figs. 4, 6 and 7 it will be observed that the rear vibrator 41 is similar in construction to the vibrator 40 but is turned oppositely or back to back to said vibrator 40 so that the corresponding lateral extension 50 and inclined guide slot 51 are at the left instead of at the right as in the case of the vibrator 40. Furthermore, the extension 48 and the vertical guide slot 49 are at the left, instead of at the right as are the corresponding extension 48 and slot 49; while, the shoulder 53 formed in the slot 52 is at the left, instead of at the right as in the case of the shoulder 53. Also, the lower portion of the ribbon vibrator 41 is cut away as indicated at 54". The ribbon is guided through these devices in a novel way presently to be described. Said devices are adapted to be vibrated by devices compris ing a two-part operating lever. The forward part of said lever projects through a slot or opening 55 in the usual central front plate 55 and comprises a finger 56 which projects through the slots 52 and 52 so that its front end may readily be grasped and manipulated. Said finger 56 extends rearward and divides into two branches 57 which, as shown in Figs. 1 and 8, are curled around the end portions of a pivot pin 58, said pin being secured to the forward end of the main part of'said operating lever, said curled end being embraced between the branches 57 Said main part is divided into two angular-1y disposed branches 59 and 60. The branches 59 and 60 extend laterally away from each other back of the curled end, as appears from Fig. 8, and are pivoted on screws 61 secured in a lug 62 depending from the top plate. Back of the pivot 61 the branch 60 is extended rearward as indicated at 60 and also off-set to the median plane of the operating lever. The finger 56 is provided with a rearward extension 56 which is provided with an angular end portion 56*, the upper edge of which is formed with V-notches 63, 64 and 65, said notches being adapted to cooperate with the branch 60 of the main part of the operating lever tohold the forward swinging part of said operating lever in one or another of three predetermined relationships with said operating lever.

' The two parts of the operating lever are adapted to be vibrated as a single piece or lever at printing operation by an upright link connected to the extension 60 at 66. The upper portion 67 of said link is detachably connected to the body portion 68 of said link, the upper end of said body portion being threaded to cooperate witha tapped hole in the portion 67, the construction enabling the relationship between the link and .the

operating lever to be varied. The power end of the main part 68 of the linkis pivotally connected to the central arm 23 of the universal frame and receives motion therefrom, transmitting the motion to the operating lever. Said link also transmits motion to a ribbon guide or turning bar device through an arm 69 which is adjustably secured between the nuts 70 on the link 68. The arm 69 curves upward and forward and is provided with a lateral stud 71 which cooperates with a slot 72 in the rear arm of a lever 7 3 fulcrumed at 74 to a bracket 75 secured to the under side of the top plate. The forward arm of the lever 73 projects through the slot 55 and terminates in a broadened upturned portion 7 6 formed with a horizontal slot 77 having an opening for the ribbon, the part or device 76 constituting a ribbon guide or turning bar.

Referring now to the course of the ribbon through the vibrators, the ribbon 26 as it leaves the left-hand ribbon spool has uppermost the field 7) which may, for example, be the red field, and said ribbon passes from said spool inward toward the vibrators, entering the slot 49 in the vibrator 40 as perhaps appears most clearly from Fig. 7, thence extending horizotnally over the front of the extension 50 and through the inclined slot 51, thence turning downward at an angle behind the extension and in front of the vibrator 40 to the turning device 76, passing behind said turning device and for ward through the guide slot 77, thence upward and leftward to the inclined slot 51 of the vibrator 41, passing behind the extension 50 as perhaps appears most clearly in Fig. 6, and then horizontally rightward over the extension 48 and backward through the slot 49 passing from behind the extension rightward to the right-hand ribbon spool.

For the sake of clearness the course of the ribbon has been followed from the left-hand ribbon spool through the front vibrator 40,

5 and thence over the guide 76 to the rear'vibrator, then to the right-hand ribbon spool. It is, however, to be understood that the most convenient way of threading the rib bon is to first insert it into" the guideslots 77 and then to pass the folds oppositely through the rear and front vibrato-rs. It

will be found in practice that it is immaterial whether the ribbon is introduced into the guide slots 77 with the field b at the left as shown, or with the field a at'the left. In

left-hand spool the ribbon field Z2 is uppermost, on the right-hand ribbon spool the ribbon field a; is uppermost; and whereas at -the printing portion of the ribbon controlled by the vibrator 40, (that is, the horizontal portion or ply between the slots 49 and 51) the upper field b is uppermost, in the horizontal ply or printing portion of the ribbon controlled by the vibrator 41 the ribbon field a is uppermost. The ribbon is broken away in Fig. 4 so as clearly to show that the horizontal plies or printing portions controlled by the ribbon vibrator are practically in register but with the difierence that the printing fields are inverted. Moreover ,t-he horizontal printing plies are oppositely faced, that is, considering the front of the forward ply to be the face of the ribbon, then the front of the rear ply is thebaok of the ribbon.

It will be apparent that the construction and arrangement is such that if the vibrators be vibrated separately and to an extent suflicient to bring only the upper portion of the ribbon opposite the printing point there will result a variation in the color or character of the printing since when the vibrator 4O isin operation the upper printing field b will be presented to the types while when the vibrator 41 is in operation the ribbon field presented to the types will be the upper field again, but the upper field in this case will be the ribbon field a. The extent of vibration is so limited that one vibratory ribbon part is never vibrated entirely above the other, thus avoiding the catching of one on the other. It will be further understood that the vibrators are rendered operative by switching the forward portion or finger 56 to engage with one or another of the shoulders 53 and 53*, the finger being adapted to underlie said shoulders and fit into the spaces between said shoulders and the bottoms of the slots. For example, as appears in Fig. 4, the finger 5'6 underlies the shoulder 58* on the vibrator 41 so that at printing operation the vibrator 41 will be raised as shown in Fig. 6 to present the upper ribbon field a to the types, thevibrator 40 remaining quiescent in normal posit-ion during this operation. If it 1s desired to make use of the lower ribbon field b the finger 56 is switched rightwarduntil the notch 65 engages with the branch 60 to retain the finger 56 underlying the shoulder 53 on the vibra- 30 cause undesirable slack.

tor 40. With the parts thus set, if the printing keys be operated the vibrator 40 will be raised as shown in Fig. 7 so as to present the ribbon field b to the types. During this operation the vibrator 41 will remain quiescent in normal position.

As clearly appears in Fig. 4 the slots 52 so register with one another that there is a central opening, numbered 78 for descriptive purposes, extending to the top of the slot. If the finger 56 be switched until the central notch 64 engages with the branch 60, the finger 56 will be retained in register with the opening 78 so that at printing operation said finger will vibrate up and down in said opening without afiecting either of the vibrators which will both remain quiescent in normal position, thus permitting mimeographing to be done. It will be imderstood further that at ribbon vibrating operation the ribbon guiding device 76 is also vibrated through the lever 7 3 and the arm 69. The parts, however, are so proportioned and arranged that the vibrating movement of the device 76 is in extent only sumption of power during vibrating operations. It will be clear that if the guide device 76 were stationary the printing portion of the ribbon at times could not be vibrated to the full extent without stretch- 4 ing the ribbon and also perhaps advancing it longitudinally to the greater or less ex tent from the paying off spool.

It will be observed that the relationship of the finger 56 with the ribbon triangle is 5 such that the parts cooperate to provide an indicating device. For example, when the finger 56 is switched to the left, as in Fig. 4-, it will be close to the black ribbon field a, thus indicating that the black field 5 is in use, whereas when the finger 56 is switched to the right as in Fig. 7, it will be nearer the printing field 7), indicating that this ribbon field is in use.

\Vhile I have shown the ribbon triangularly arranged, it will be understood that the principle is adaptable generally to polygonal figures of odd numbers of sides, for example, a pentagonal arrangement may be employed, although of course the triangular 0 disposition is simplest and most convenient.

This principle of the triangular or other polygonal arrangement of the printing me: dium to vary the printing field may also be made use of in another way, as will be un- 5 derstood from Fig. 9. This figure shows a paper ribbon 79', one face of which X is colored black and the opposite face Y is colored red. The paper ribbon 79 is arranged tri'angularly as it would be if mounted on vibrators of the character illustrated in Figs. 4-, 6 and 7 ,and it will be observed that as a consequence the horizontal or printing portions of the paper ribbon 79 are in register but oppositely faced. Gonsidering the forward horizontal printing portion, the face X is in view from the front of the machine and the types will con tact with this face when it is in use; but the back face Y will in consequence be offset on the paper. Similarly, considering the rear printing portion, it will be understood that while the face Y is in view the face X will off-set on the paper when the rear horizontal printing portion is in use. In other words, by providing a printing medium having its opposite faces differently colored, we may, by the use of my presentinvention, so arrange and control this medium so as to bring either of the colored faces into use at will to vary the character of the printing. The paper ribbon also acts as an indicator in cooperation with the shifting finger 56, as in the case of the first construction.

My present invention provides ribbon guides for directing the ribbon polygonally which overlie one another, one ply being inverted with respectto the other so that opposite edge portions of the ribbon are in register in the plies. It'will be observed that means are provided including two vibrators for vibrating selected portions of the triangularly maintained part of the ribbon, in the present instance the selected portions being overlapping plies; that the triangularly maintained portion is maintained by guiding devices which comprise two vibrators or vibratory ribbon guides; that the vibrators may be selectively vibrat'ed by devices which in the present instance include a two-part operating lever,

one part being swingable laterally on the other to engage alternatively at will with the vibratory guides or vibrators; that all the ribbon guides, including the vibrators so-called, are independent of the ribbon spools; that the guiding nieans includes a turning bar which is vibratable independently of the two ribbon vibrators proper; that the guiding device or turning bar cooperates with the'ribbon during its passage from one of the vibrators proper to the other that the guiding device vibrates with whichever of the ribbon vibrators is operative; that the extent of vibration of the guiding device differs from that of the ribbon vibrators, in the present instance being less; that the vibrators proper are arranged in parallelism and the guiding device is in the present instance located below the vibrators proper; and that the guiding device not only guides the ribbon but assists to turn or twist it so that the overlying plies are oppositely faced.

What I claim as new and desire to secure by Letters Patent, is

1. In a typewriting machine, the combination of a platen, ribbon guiding mechanism for maintaining the ribbon in the vicinity of the printing point and for directing the ribbon at one side of the platen in a polygonal course of an odd number of sides, and means for controlling said guiding mechanism to present at will opposite edge portions of the ribbon to the types, said means being adjustable independently of movement of said mechanism.

2. In a typewriting machine, the combination of ribbon guiding mechanism for directing the ribbon triangularly in the vicinity of the printing point, and means for controlling said guiding mechanism to present at will opposite edge portions of the ribbon to the types.

' 3. In a typewriting machine, the combination of ribbon guides for maintaining the ribbon in triangular form at one side of the printing point, and means including said guides for vibrating selected portions of the triangularly maintained part of the ribbon.

4. In a typewriting machine, the combination of ribbon guides for maintaining the ribbon in triangular form at one side of the printing point, and means for at will vibrating selected ones of said guides.

5. In a typewriting machine, the combination of a plurality of ribbon vibrators cooperative with a single ribbon, and means for at will vibrating predetermined ones of said vibrators.

6. In a typewriting machine, the combination of means including two ribbon vibrators for maintaining twoprinting plies of the same ribbon oppositely faced, and means for vibrating said vibrators separately.

V 7. In a typewriting machine, the combination of ribbon guides for guiding a plu-' rality of plies of a single ribbon in superposed relationship at one side of the printing point, and means for vibrating said ribbon guides to cover and uncover the printing point with said ribbon plies.

8. In a typewriting machine, the combination of a carriage, ribbon guiding devices supported independently of the carriage and maintaining ribbon plies of the same ribbon in overlying relationship but with posed relationship at one side of the printing point, and means for at will vibrating at printing operation pre-selected ribbonguides to present predetermined plies opposite the printing point.

10. In a typewriting machine, the combi-' nation of ribbon guides disposed in triangular relationshipfor guiding plies of asingle ribbon in superposed relationship in the vicinity of the printing point but with opposite edge portions of said plies nearest the printing point, and means for vibrating said ribbon plies.

11. In a typewriting machine, the combination of ribbon guides disposed in triangular relationship for guiding plies of a single ribbon in superposed relationship in the vicinity of the print-ing point but with opposite edge portions of said plies nearest the printing point, and means for at will selectively vibrating said guides to present different ribbon plies to the types.

12. In a typewriting machine, ribbon guides for directing the ribbon in a triangular course and in superposed plies.

13. In a front strike typewriting machine, the combination of a platen and-ribbon guides forward ofthe platen and directing the ribbon in a triangular course, and in superposed plies in the vicinity of the printing point. v I

14. In a typewriting machine, the combination of ribbon spools carrying a single ribbon, ribbon guiding devices independent of said spools and guiding the ribbon in a triangular course atone side of the printing point and so that the ribbon as it winds on and off said spools has its edge portions oppositely disposed, and means for controlling said guiding devices to present at will opposite edge portions of the ribbon to the types.

15. In a typewriting machine, the combination of ribbon spools carrying a single ribbon, and ribbon guides directing the ribbon in a triangular course and in' superposed plies at one side of the printing point, opposite edge portions of theribbon. overlying one another in said plies.

16. In a t pewriting machine, the combination of rlbbon spools carrying a single ribbon, ribbon guides directing the ribbon in a triangular course and in super-posed plies at one side of the printing point, opposite edge portions of the ribbon overlying perposed plies at one side of the printing point, opposite edge portions of the ribbon overlying one another in said plies, and means for vibrating selected guides independently of each other for presenting opposite edge portions of the ribbon to the printing point.

18. In a typewriting machine, the combination of a plurality of ribbon vibrators, means for selectively vibrating said vibrators at printing operation, and an independent vibratory turning bar.

19. In atypewriting machine, the combination of a plurality of ribbon vibrators cooperative with a single ribbon, a guiding device for guiding the ribbon in its passage from one of said ribbon vibrators to the other, and means for at will vibrating a predetermined vibrator.

20. In a typewriting machine, the combination of a plurality of ribbon vibrators cooperative with a single ribbon, a guiding device for guiding the ribbon inits passage between said ribbon vibrators, and means for at will vibrating a predetermined vibrator and for vibrating said guiding device.

21. In a typewriting machine, the combination of a plurality of ribbon vibrators, an operating lever cooperative at will with a pro-selected vibrator, actuating means for said operating lever, a ribbon guide for guiding the ribbon between said vibrators, and connections between said guide and said actuating means.

22. In a typewriting machine, the combination of ribbon vibrators, key controlled actuating means therefor, and a separate ribbon guide connected with said means, the connection between said vibrators and said means being breakable at will.

23. In a front-strike typewriting machine, ribbon guiding mechanism for directing the ribbon in a triangular course below the printing point.

24. In a front-strike typewriting machine, the combination of ribbon guides for main taining the ribbon in the form of an inverted triangle below the printing point, and means for selecting and vibrating said guides to employ selected horizontal portions of said triangular part.

25. In a front-strike typewriting machine, the combination of ribbon vibrators for guiding a plurality of plies of a single ribbon in superposed relationship below the printing point, and means for selectively vibrating said vibrators to cover and uncover the printing point with the ribbon plies.

26. In a front-strike typewriting machine, the combination of ribbon vibrators for guiding a plurality of plies of a single ribbon in superposed relationship below the printing point, vibrating devices and means for alternatively connecting said vibrators with said devices.

27. In a typewriting machine, the combi nation of a pair of ribbon vibrators, each vibrator comprising guiding slots for directing a ribbon ply horizontally, a guiding device independent of the two vibrators and guiding the ribbon as it passes from one vibrator to the other, and key controlled actuating means connectible selectively with said vibrators. I

28. In a typewriting machine, the combination of a pair of ribbon vibrators, each vibrator comprising guiding slots for directing a ribbon ply horizontally, a guiding device independent of the two vibrators and guiding the ribbon as it passes from one vibrator to the other, and a key controlled operating lever connectible at will with said vibrators alternatively.

29. In a typewriting machine, the combination of a pair of ribbon vibrators, each vibrator comprising guiding slots for directing a ribbon ply horizontally, a guiding device independent of the two vibrators and guiding the ribbon as it passes from one vibrator to the other, an operating lever alternatively connectible with said vibrators, key controlled actuating means for said lever, and connections between said actuating means and said guide.

30. In a typewriting machine, the combination of a pair of ribbon vibrators, each vibrator comprising guiding slots for directing a ribbon ply horizontally, a guiding device independent of the two vibrators and guiding the ribbon as it passes from one vibrator to the other, and a jointed twopart operating lever adjustable at will to connect with one or the other of said vibrators.

31. In a typewriting machine, the combination of a plurality of ribbon vibrators each provided with a shouldered slot, a key controlled operating lever shiftable at will to connect operatively with either of said shouldered slots, said lever being also shiftable to move inoperatively in said slots.

32. In a typewriting machine, the combination of a plurality of ribbon vibrators, a guide for the ribbon between said vibrators, and means for selectively vibrating said vibrators and for constantly vibrating said guide at printing operation, the extent of vibration of. said guide differing from the extent of vibration of said vibrator."

33. In a typewriting machine, the combination of a plurality of ribbon vibrators, a guide for the ribbon between said vibrators, and means for selectively vibrating said vibrators and for constantly vibrating said guide at printing operation, the extent of vibration of said guide diifering from the extent of vibration of said vibrator, both said vibrators being disconnectible at the same time from said means.

34. In a typewriting machine, the combination of a pair of ribbon vibrators arranged in parallelism and eachprovided with a shouldered slot, a two-part operating lever, one part being swingable on the other from side to side to engage with the shouldered portions of said slots, and detent devices for maintaining said swingable part in engaging positions.

35. In a typewriting machine, thecombination of a pair of ribbon vibrators arranged face to face and each provided with a shouldered slot, a two-part operating lever, one part being swingable on the other from side to side to engage with the shouldered portions of said slots, and detent de-i vices for maintaining sald swingable part in engaging positions, the detent also operating to maintain said swingable part in inoperative or disengaged position.

36. In a typewriting machine, the combination of a pair of ribbon vibrators, actuating devices therefor, and a guiding de vice for guiding and turning the ribbon between said vibrators, the ribbon being turned or twisted so as to present opposite faces of overlying plies for use.

37. In a typewriting machine, the combination of two ribbon vibrators, an operating lever comprising two parts, one part being swingable to engage at will with the vibrators in alternation, a key controlled universal bar, a link connecting said universal bar with said lever, a pivotally supported guiding and turning device cooperating wit-h the bent portion of the ribbon between the-vibrators, and a member on said link for actuating said device.

Signed at the borough of Manhattan, city of New York, in the county of New York, and State ofNew York, this 26th day of May A. D. 1911.

JOHN VVALDHEIM. Witnesses: CHARLES E. SMITH, M. F. HANNWEBER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G.

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