US1891569A - Manifolding attachment - Google Patents

Description

Dec. 20, 19-32.

L. c. MYERS ET AL MANIFOLDING ATTACHMENT Filed June 27, 1931 attorneys.

Dec. 20, 1932. c. MYERS ET AL 1,891,569

MANIFOLDING ATTACHMENT Filed June 27, 1931 8 Sheets-Sheet 3 mentors.

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Dec. 20, 1932. c. MYERS ET AL MANIFOLDING ATTACHMENT Filed June 27, 1931 8 Sheets-Sheet 4 //////IIIII/ 1.. c. MYERS ET AL 1,891,569

MANIFOLDING ATTACHMENT Filed June 27, 1931 8 Sheets-Sheet 5 Dec. 20, 1932.

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HANIFOLDING ATTACHMENT Filed June 27. 1931 8 Sheets-Sheet 8 m 3nventor Lewis Patented Dec. 20, 1932 UNITED STATES PATENT OFFICE LEWIS C. MYERS, OF FREEPORT, AND GEORGE E. HANDLEY, OF GLENDALE, NEW YORK, ASSIGNORS TO ROYAL TYPEWRITER COMPANY, INC., OF NEW YORK, N. Y., A. (17018-- IORATION 01 NEW YORK mimromame Application filed June 27,

This invention. relates to new and useful improvements in manifolding attachments for typewriting machines or the like, and embodies certain improvements over our copending application Serial No. 546,855, filed June 25, 1931, relative to the tensiomng means for the ribbon spools, the manually actuated locking means for the spools, and the manually actuated means for withdrawing the tensioning means and the lockmg means away from the spools-a distance sulficient to permit of the spools being readily removed from or applied to their supporting shaft without any interference.

Among the several objects of this invention are to provide novel means for supporting ribbon spools on the machine, peripheral members connected to the respective spools for rotation therewith, a constant spool tensioning means disposed axially of the spool, a normally ineffective locking means cooperating with the periphery of each member, and means to render said locking means effective during the feeding movement of the carbon strips or ribbons and preferably prior to the completion thereof whereby the last portion of the ribbon feeding movement will remove all slack in the ribbon immediately prior to the line spacing operation of the work sheets; to provide a manually operable means for releasing all tensioning means simultaneously whereby the spools may be readily positioned on their supporting shaft or removed therefrom without interference, and to provide a ribbon spool assembly of the character described which can be readilv and cheaply manufactured and easily applied to a typewriting machine of the con-' struction illustrated in the co-pending application referred to above.

With these and other objects in view which will more fully appear. the nature of the invention will be more clearly understood by following the description, the appended claims. and the several views illustrated in the accmnnanving drawings.

la the drawings Figure 1 is a top plan view of a typewriting machine constructed in accordance with the invention,

ATTACHMENT 1931. Serial No. 547,382.

Figure 2 is a rear elevation thereof,

Figure 3 is a view in elevation of the right hand side of the inachine, parts thereof being shown in section,

Figure 4 is an enlarged front elevation of the spool supporting frame,

Figure 5 is a vertical transverse sectional view taken through the spool supporting frame,

Figure 6 is a bottom plan view of the spool supporting frame,

Figure is a horizontal sectional view taken on the line 77 of Figure 5.

Figure 8 is a horizontal sectional view taken on the line 88 of Figure 5, 1

Figure 9 is a vertical longitudinal sectional view taken on the line 99 of Figure 5.

Figure 10 is a detail horizontal sectional view taken on the line-1010 of Figure 2,

Figure 11 is a perspective view of one-of the clutching pawl supporting levers,

v Figure 12 is a perspective view of the tension release lever and certain of the operating parts connected thereto,

Figure 13is a perspective view of the universal frame for normally retaining all of the clutch pawls out of engagement with the perspective ribbon spools, and

Figure 14 is a detail sectional view showing the clutch connection between the hub and core of each ribbon spool.

As previously stated, this invention relates to improvements in the ribbon spool tensioning and locking means shown in our application filed June 25, 1931, and therefore only that much of the typewriting machine is i1- lustrated in the drawings as will be necessary to an understandingof the present invention;

The typewriting machine includes a main frame A on which a carriage B is supported for letter space movements. A platen C is fixed to the lower end of a collating frame D pivoted on the carriage to swing forwardly and rearwardly to effect a rearward and forward movement of the platen upon swinging movement of the carriage return lever E through suitable connections shown in our co-pending application. Type bars F cooperate with the platen, and a main ribbon G is disposed in front of the platen. Work sheets H are led forwardly to the platen over a work guide I attached to the carriage, thence over a roller 5 journaled on the carriage, thence downwardl under a guide roller 6 j ournaled on the carriage-below the platen, and thence upwardly past the platen and have their upper edge portions clamped to a truck J which is mounted on the collating frame D for line spacing movements, the truck being line spaced by the lever E by a mechanism shown in our co-pending application. A spool supporting frame K is disposed in rear of the main frame A and is attached to the carriage to move therewith, the frame K carrying a roller 7. which rides along a rail 8 attached to the main frame A. A plurality of ribbon spools L are rotatably supported on a shaft 9 fixed to the frame K, and the carbon strips or ribbons M are led from the spools forward ly along the left side of the carriage, thence along and in front of the platen and in rear of the main ribbon G and in interleaved relation with the work sheets, and thence rearwardly along the right hand side of the carriage to a ribbon feeding means N which includes cooperating feed rolls 10, 10. The ribbon feeding means N is actuated from the collating frame D by connections shown in our co-pending application. Means are provided for individually and normally tensioning the spools against feeding rotation and other means which are normally ineffective, are provided for individually and simultaneously locking the spools against feeding rotation at a period of time immediately before the ribbon feeding means has completed its movement whereby the ribbons will be rendered taut before the work sheets are line spaced thereby preventing the ribbons from being dragged upwardly therewith. Means are also provided for simultaneously releasing the tensions whereby the spools may be readily removed from or applied to the spool supporting shaft without any interference.

The above construction is shown and claimed in our co-pending application, and the present invention relates to a different tensioning and locking means for the spools and to means for releasing the former from the spools.

The spool supporting frame K includes front and rear walls or plates 11 and 12 respectively, which are rigidly connected by spaced upper side braces 13, 13 and spaced lower side braces 14, 14. the latter being provided with upstanding flanges 14a, 14a along their outer side edges thereof. The spool supporting shaft 9 'is fixedly secured at its front end to the front plate 11 and the rear free end of the shaft is located centrally with respect to an opening 15 formed in the rear plate 12, the opening being of a size sufficient to permit a ribbon spool L to be freely passed therethrough.

Each spool L comprises a hub 16 having a disc member 17 fixed thereto and provided with a serrated clutch periphery 18. Mounted on the hub 16 is a cardboard core 19 for the ribbon. The peripheries of the hub 16 are provided with a. fiat 20 and a flat clutch plate 21 is disposed against said flat and is pivotally connected to the hub whereby the free edge of the plate will engage the core 19 and thereby cause said core and disc to rotate in unison in the direction of feed. It is desirable to apply a constant tension to each spool and thereby create a drag on the ribbon against the action of the ribbon feeding means. For this purpose the stationary spool supporting shaft 9 is provided with a plurality of radially disposed guide recesses 22 which extend inwardly from the periphery of said shaft and slidably mounted in each recess is a tension plunger 23 having a rounded outer end for engaging an annular groove 24 formed in the inner face of the hub 16. A coil spring 25 is located in the, inner end of the recess and functions to yieldably urge the tension plunger 23 outwardly into frictional engagement with the spool.

Disposed directly below the horizontal spool shaft 9 is a horizontal bearing rod 26 having its ends secured to the front and rear plates 11 and 12, the rod being disposed in a horizontal planebelow the opening 15 of the rear plate. Disposed above the rod 26 and below the spool F is an arcuate plate 27 which is sprung into place against the lower side braces 14, 14 and is concentric with the axis of the spool supporting shaft 9. The plate 27, as viewed in Figure 5, is provided along its side edges with depending flanges 27a and 276 respectively, the former being fiat throughout its height, and the latter being formed with an inwardly curved lower edge portion 270. \Vhen positioning the plate 27 on the braces 14, 14, the flange 27a of the plate is first positioned against the inner face of the flange 14a of the associated brace 14, and then the other flange 27b is pushed downwardly and sprung into place against the flange 14a of the other brace 14, the lower curved portion 27 c facilitating the operation. Thus the plate 27 is yieldably but firmly retained in position on the braces 14, 14. A series of openings 28 are formed in the arcuate plate 27 on one side of the rod 26 and are disposed in parallelism therewith. These openings are respectively arranged in register with the disc members 17 of the spools L.

A plurality of lock levers P are fulcrumed on the bearing rod 26, there being one lever for ea h spool. Each lock lever is in the nature of a bell crank lever and includes a laterally extending arm 29 and a locking pawl 30 which is integral with the horizontal arm and extends upwardly therefrom between the ends thereof and is provided with a serrated with the serrated periphery 18 of the associated disc 17 by a coil spring 32. The serrations 30a of the pawls 30 and the serrations 18 of the discs 17 are consistent with each other, that is, they have the same pitch, and

therefore the pawls will fit the discs for positive-locking contacts therewith. Means are rovided for normally retaining all of the lbcking pawls 30 in ineffective locking position's. To this end, a universal ,frame 33 is pivotally mounted on the beariing rod 26,

said frame including spaced lever arms 34, 34 which are journaled intermediate their ends on said bearing rod, a universal bar 35 which is rigidly connected to the arms 34, 34 on one side of said bearing rod, and an anchor bar 36 connected to the arms 34 on the side of the bearing rod opposite the universal bar 35. The springs 32 are each connected at one end to the locking pawl 30 and its other end to the anchor bar 36. The universal bar 35 is disposed above the outer ends of the horizontal arms 29 of the lock levers P and a spring 37 is connected to the universal frame 33 and to one of the braces 14 of the spool Qme for yieldably holding all of the pawls 30 out of engagements with the respective serrated peripheries of the spool discs, as shown in Figure 5. One end of each'spring 32 is attached at one end to the upper end of the associated pawl 30 and the other end to the anchor bar 36, in order not only to render the spring 37 most effective but also to minimize the effort required to release the pawls from the discs.

It is desirable to render the spool locking means effective at a time immediately prior to the completion of the operation of the ribbon feeding means N whereby the la st part of the movement of the feeding means N will function to remove any slack in the ribbons and to render said ribbons as taut as possible whereby the work sheets, which are subsequently line spaced, will not drag the ribbons upwardly therewith. For this purpose, a bell crank lever 38 is fulcrumed at its angle as at 39 on the front plate 11 of the spool frame. The horizontal arm 40 of said bell crank lever is pivotally connected to the upper end of a vertical link 41, the lower end of said link being pivotally connected to the universal frame 33 adjacent the bar 35 thereof. The vertical arm 42 of said bell crank lever 38 is pivotally connected to one end of a link 43,;the other end of said link being pivotally connected to one arm of a bell crank lever 44 which is pivoted at its angle on the left hand end of the carriage. The other arm of the bell crank lever 44 is pivotally connected to the rear end of a link 45 and the forward end of said link is operatively connected to the carriage return lever E through the medium of a cam and lever connection as shown in our co-pending applicaton referred to above. Thus upon swinging the carriage return lever E toward the right, the link 45, bell crank lever 44, link 43, bell crank lever 38,and link41 will cause the universal frame 33 to be rocked on the bearing rod 26 and thereby elevate the universal bar 35, thus freeing the lock levers P and permitting the springs 32 to swing the lock levers upwardly into locking engageinents with the serrated peripheries 18 of the spool discs 17 andthereby lock said spools against feeding rotation.

The position of the bearing 9 of the spools, the bearing 26 of the locking pawls P and the position of the serrated locking pawl 30 serves to make a positive lock against the pull of the ribbon at the time that the serrated lock pawl and the serrated spool disc are in locking contact. The pitch or spacing of the serrations on the spool disc and the locking pawls are identical so that they feed one within the other for positive contact without slip. This same relation between the parts above mentioned tend to hold the locking pawl 30 within the serrations of the discs L without slip, that is the greater the pull on the ribbon the more tendency there is for the parts to lock together.

\Vhen it is desired to apply the ribbon spools to the supporting shaft 9 or remove the spools therefrom, the operator moves all of the tension plungers 23 inwardly and simultaneously against the tensions of the springs 25 so as to position said plungers entirely within the periphery of the supporting shaft 9 and thereby render said periphery unobstructed to the application or removal of the spools. For this purpose, the shaft 9 is provided with a longitudinal seat 46 and journaled in said seat is an actuator 47. The seat 46 is disposed along side of the guide recesses 22 and is in open communication with all of the recesses. Each plunger 23 is provided with a recess forming a resultant transverse shoulder 48 and the actuator shaft 47 is provided with a longitudinal groove forming a resultant shoulder 49 which is common to all of the shoulders 48 of the tension plungers 23. Therefore, upon oscillation of the actuator shaft 47 in the proper direction all of the plungers will be retracted against their respective springs 25 until the outer ends of the plungers are positioned within the periphery of the supporting shaft 9. In order to oscillate the actuator shaft 47, the front end thereof is projected through the front plate 11 of the spool supporting frame and fixed to the front projecting end thereof is a bell crank lever 50. One arm 51 of the bell crank lever is connected by a depending link 52 to a rock arm 53 fixed toa rock shaft 54 journaled in the. front and rear plates 11 and 12 of the spool supporting frame immediatelv below the bearing rod 26.

The rear end of the rock shaft 54 projects rearwardly beyond the rear plate 12 and fixed thereto is a hand lever 55. The upper end of the lever is provided with an opening 56 for receiving a reduced extension 57 plication formed on the rear end of the spool supporting shaft. Pivotally mounted on this lever 55 is a latch lever 58 similar to the one shown and described in our co-pending apreferred to above. A spring plunger 59 is mounted on the rear plate 12 of the spool frame, as shown in Figure 10, and cooperates with the lever to retain the same in its operative position in engagement with the spool supporting shaft 9. It will be observed, however, that this hand lever normally functions to support the outer end of the shaft 9, and when the lever is turned the actuator shaft 47-will be rocked and consequently all of the tension plungers will be retracted. It will also be observed that when the hand lever 55 is returned to its normal position the actuator shaft 47 will be reversely operated and the several springs 25 will function to automatically return the plungers into frictional engagements with the associated spools.

The arcuate plate 27 acts as a cover for the mechanism underneath and prevents interference between the mechanism and ribbon, especially when placing or removing the spools.

In the operation of our invention, thework sheets H are loaded into the machine and the carbon strips or ribbons M are interleaved therewith in front of the platen C and the free ends of the ribbons are engaged between the feed rolls 10, 10 of the feeding means N, after which the lead-in ends of the work sheets are clamped to the truck J. The operator then writes a line on the work sheets. The carriage return lever E is then swung to the right, prior to returning the carriage, and during the first part of the swinging movement of the lever, the collating frame D is swung forwardly and the platen C rearwardly to relieve the normal tight contact relation between the work sheets and the platen. The ribbon feeding means N is actuated simultaneously with the forward movement of the collating frame, and thus the carbon ribbons M are fed against the individual tensioning means which are constantly applied to the ribbon spools. Prior to the completion of the operation of said feeding means, the locking means for the respective spools is rendered effective, thereby permitting the last part of the movement of the feeding means to stretch the ribbons fully taut whereby they will not be dragged upwardly with the work sheets during the line spacing movement thereof. During the last part of the swinging movement of the carriage return lever to the right, the truck J is moved upwardly along the collating frame for the desired distance to properly line space the work sheets. The operator then, by a continued pressure on the lever toward the right,- returns the carriage to its initial or desired position, and upon release ofthe lever the previously moved parts, except the truck J, will return to their normal positions.

We claim 1. In a typewriter, a rotatable ribbon spool including a peripheral member, ribbon feeding means, means for tensioning the spool against feeding movement, normally ineffective means, separate from the tensioning means adapted to cooperate with the periphery of said member to lock the spool against feeding movement, and means for actuating the ribbon feeding means and concomitantly rendering said locking means effective.

2. In a typewriter, a rotatable ribbon spool including a disc having a serrated periphery, ribbon feeding means, means for tensioning the spool against feeding movement, a normally ineffective clutch pawl adapted to cooperate with the serrated periphery of the disc to lock the spool against feeding movement, and means for rendering said clutch pawl effective.

3. In a typewriter, a rotatable ribbon spool including a peripheral member, ribbon feeding means, means for tensioning the spool against feeding movement, normally ineffective means adapted to cooperate with the periphery of said member to lock the spool against feeding movement and comprising a locking pawl pivoted on an axis located exteriorly of the periphery of said member, a spring for normally urging the pawl into effective locking engagement with the periphery of the member, and means for normally retaining the pawl in its ineffective position, and means for moving the retaining means in a direction to render the pawl effective.

4:. In a typewriter, a plurality of rotatable ribbon spools each including a peripheral member, ribbon feeding means, separate means for individually tensioning the spools against feeding movement, a plurality of normally ineffective means adapted to cooperate with the peripheries of said members to lock the spools against feeding movement, and means for rendering all of said locking means effective.

5. In a typewriter, a plurality of rotatable rendering all of said clutch pawls effective. 7

6. In a typewriter, a plurality of rotatable ribbon spools each including a disc having respectively urging the pawls into locking' engagements with the serrated peripheries of the discs, means common to all of said pawls for normally retainin the same in their in-' effective positions, and means for moving the retaining means in a direction to render the pawls effective.

7 In a ty ewriter,'a plurality of rotatable ribbon spoo 5 each including a disc having a serrated periphery, ribbon feeding means, separate means for indivdually tensioning the spools against feeding movement, a pluralit of normally ineffective clutch pawls adapted to cooperate with the serrated peripheries of said discs to lock the spools against feeding movement, a plurality of springs for respectively urging the pawls into locking engagements with the serrated peripheries of the discs, a pivoted universal rod for normally retaining all of the pawls in their IIIGfi QG- tive positions, and means for swinging the universal rod in a direction to render the pawls effective.

8. Ina typewriter, a rotatable rlbbon spool including a peripheral member, ribbon feeding means, means located axially of the spool for tensioning the latter against feeding movement, normally ineffective means adapted to cooperate with the periphery of said member to lock the spool against feeding movement, and means for rendering said locking means effective.

9. In a typewriter, a stationary shaft, a ribbon spool rotatably mounted on said shaft and including a peripheral member, rlbbon feeding means, means mounted on the shaft for tensioning the spool agalnst feedlng movement, normally ineffective means adapted to cooperate with the periphery of said member to lock the spool against feeding movement, and means for rendering sai locking means effective.

10. In a typewriter, a stationary shaft, a ribbon spool rotatably mounted on said shaft and including a peripheral member, ribbon feeding means, an outwardly spring pressed plunger movably mounted in the shaft and cooperating with the spool for tensioning the latter against feeding movement, normally ineffective means adapted to cooperate with the periphery of said member to lock the spool against feeding movement, and means for rendering said locking means effective.

11. In a typewriter, a stationary shaft, a ribbon spool rotatably mounted thereon and including a hub anda peripheral member, ribbon feeding means, means mounted on the shaft and engaging the hub for tensioning the spool against'feeding movement, normall ineffective means ada ted to cooperate wit the riphery of sai member to look the spoo against feeding movement, and means for rendering said locking means effective.

12. In a typewriter, a stationary shaft, a

ribbon spool rotatably mounted thereon and including a hub and a peripheral member, ribbon feeding means, an outwardl spring pressed plunger movably mounted in the shaft and cooperating with the spool for tensioning the latter against feeding movement,

normally ineffective means adapted to cooperate with the periphery of said member to lock the-spool against feeding movement, and means for rendering said locking means effective. i

13. In a typewriter, a rotatable ribbon spool including a disc having a serrated p'eriphery, ribbon feeding means, means located axially of the spool for tensioning the latter against feeding movement, a normally ineffective clutch pawl adapted to cooperate with the serrated periphery of the disc to lock the spool against feeding movement, and p eans for rendering said clutch pawl effec ive.

i 14. In a typewriter, a rotatable ribbon spool including a disc having a serrated-perlphery, ribbon feeding means, means located axially of the spool for tensioning the latter against feeding movement, normally ineffective means adapted to lock the spool against feeding movement comprising a pawl pivoted on an axis located exteriorly of the periphery of the disc, a spring for normally urging the pawl into effective-locking engagement with the periphery of the disc, means for normally retaining the pawl in its ineffective position, and means for moving the retaining means in a direction to render the pawl effective.

15. In a typewriter, a plurality of ribbon spools mounted for individual rotation about acommon axis and each including aperipheral member, ribbon feeding means, separate means located axially of the spools for indlvidually tensioning the same, a plurality of normally ineffective means adapted to cooperate with the peripheries of said members to lock the spools against feedin movements, and means for rendering all 0 said locking means effective.

16. In a typewriter, a plurality of ribbon spools mounted for individual rotation about a common axis and each including a peripheral member, ribbon feeding means, separate means located axially of the spools for ind ividually tensioning the same, a plurality of normallyineffective pawls adapted to cooperof the pawls for normally retaining the same disengaged from said peripheries, and means for movin the universal rod in a direction to render t e pawls effective.

" 17. In a typewriter, a rotatable ribbon spool including a peripheral member, ribbon feeding means, means for tensioning the spool against feeding movement, normally ineffective means adapted to cooperate with the periphery of said member to lock the spool against feeding movement, means for rendering said locking means effective, and means for releasing the tensioning means.

18. In a typewriter, a rotatable ribbon spool including a peripheral member, ribbon feeding means, means located axially of the spool for tensioning the latter against feeding movement, normally ineflective means adapted to cooperate with the periphery of said member to lock the spool against feeding movement, means for rendering said looking means effective, and means located axial ly of the spool for releasing the tensioning means.

19. In a typewriter, a stationary shaft having a longitudinal bearing recess and a guide recess extending inwardly from the periphery of the shaft, a ribbon spool rotatably mounted on said shaft, and including a hub and a peripheral member, ribbon feeding means, an outwardly spring-pressed tension plunger mounted in the guide recess and normally engaging the hub for tensioning the spool against feeding movement, normally ineffective means adapted to cooperate with the periphery of said member to lock the spool against feeding movement, means for rendering said locking means effective, and means including an actuator shaft mounted in the longitudinal recess and engageable with the plunger for disengaging the latter from the hub of the spool.

20. In a typewriter, a stationary shaft having a longitudinal bearing recess and a guide recess extending inwardly from the periphery of the shaft, a ribbon spool rotatably mounted on said shaft, and including a hub and a peripheral member, ribbon feeding means, an outwardly spring-pressed tension plunger mounted in the guide recess and normally engaging the hub for tensioning the spool against feeding movement, normally ineffective means adapted to cooperate with the periphery of said member to lock the spool against feeding movement, means for rendering said locking means effective, and means for releasing the tension plunger from the spool including a rock shaft, connections between the rock shaft and the actuator shaft, and a manually operable lever fixed to the rock shaft.

21. In a typewriter, a plurality of rotatable ribbon spools each including a peripheral member, ribbonfeeding means, separate means for individually tensioning the spools against feeding movement, a plurality of normally ineifective means adapted 'to cooperate with the peripheries of said members to lock the spools against feeding movement, means for rendering all of said locking means effective, and means for simultaneously rendering ineffective all of said tensioning means.

22. In a typewriter, a stationary shaft having'a longitudinal bearing recess and a plurality of guide recesses extending inwardly from the periphery of the shaft, a plurality of ribbon spools mounted on said shaft and each including a hub and a peripheral member, ribbon feeding means, outwardly springpressed tension plungers respectively mounted in the guide recesses and normally engaging the hubs for individually tensioning the spools against feeding movements, normally ineffective means adapted to cooperate with the peripheries of the members to lock the spools against feeding rotation, means for rendering said locking means effective, and means including an actuator shaft mounted in the longitudinal shaft and engageable with the plungers for simultaneously disengaging all of said plungers from the hubs of the spools.

23. In a manifolding typewriter, the combination with a carriage having a platen past which a work sheet is fed, a ribbon spool journaled on the carriage, ribbon feeding means mounted on the carriage, means for guiding the ribbon from the spool across the work sheet to said feeding means, a member connected to the ribbon spool to rotate therewith and provided with a serrated periphery, means for tensioning the feeding movement of the ribbon, normally ineffective locking means adapted to cooperate with the periphery of the member to retain the spool against rotation, and means for actuating the ribbon feeding means and concomitantly rendering said locking means effective.

24. In a manifolding typewriter, the combination with a carriage having a platen past which a work sheet is fed, a non-rotatable shaft fixed to the carriage, a ribbon spool journaled on said shaft, a peripheral member rotatable about said shaft and connected to the spool to rotate therewith, ribbon feeding means mounted on the carriage, means for guiding the ribbon'from the spool across the work sheet to said feeding means, means for tensioning the feeding movement of the ribbon, normally ineffective locking means adapted to cooperate with the periphery of the member to retain the spool against rotation, and means for actuating the ribbon feeding means and concomitantly rendering said locking means effective.

25. In a manifolding typewriter, the combination with a carriage having a platen past which a work sheet is fed, a non-rotatable shaft fixed to the carriage, a ribbon spool journaled on said shaft, a peripheral member rotatable aboutssaid' shaft and connected to the spool to rotate therewith said member being provided with a serrate 'surface arranged concentrically with respect to the shaft, ribbon feeding means mounted cooperate with the serrated surface of the member to retain the spool against rotation,

and means for actuating the ribbon feeding means and concomitantly rendering said locking means effective.

26. In a manifolding typewriter, the combination with a carriage having a platen past which a work sheet is fed, a ribbon s 001 journaled on the carriage, ribbon fee ing means mounted on the carriage, means for guiding the ribbon from the spool across the work sheet to said feeding means, a member connected to the ribbon spool to rotate therewith and provided with a serrated peripher means for tensioning the feeding movement of the ribbon, normally ineffective locking means adapted to cooperate with the periphery of the member to retain the spool against rotation comprising a lever, a looking pawl fixed to said lever and adapted to engage the serrated periphery of said member, and a spring for normally retaining said locking pawl out of engagement with the serrated periphery of said member, and means for actuating the ribbon feeding means and concomitantly rendering said locking means effective.

means mounted on the carriage, means for 27. In a manifolding typewriter, the combination with a carriage having a platen past which a work sheet is fed, a ribbon spool journaled on the carriage, ribbon feeding guiding the ribbon from the spool across the work sheet to said feeding means, a member connected to the ribbonspool to rotate therewith and provided with a serrated'periphery, means for tensioning the feeding movement of the ribbon, normally inefi'ective locking means adapted to cooperate with the periph cry of the member to retain the spool against rotation, a manual operating lever mounted on the carriage, driving connections between the operating lever and the ribbon feeding means, and actuating connections between the operating lever and the locking means for rendering the latter efi'ective prior to the completion of the ribbon feeding movement.

28. In a. manifolding typewriter, the combination with a carriage having a platen past which a work sheet is fed, a ribbon spool journaled on the carriage, ribbon feeding means mounted on the carriage, means for guiding the ribbon from the spool across the work sheet to said feeding means, a member connected to the ribbon spool to rotate there with and provided with a serrated periphery, means'for tensioning the feeding movement of the ribbon normally inefiective locking means adapted to cooperate with the periphery of the member to retain the spool against rotation, means for actuatin the ribbon feedmg means and concomitant y rendering said locking means effective, and manually operable means for releasing the tensioning means from the spool.

29. In a manifolding typewriter, the combination of a carriage having a platen past which work sheets are fed, anon-rotatable shaft fixed to the carriage, a plurality of ribbon spools journaled on said shaft, peripheral members respectively disposed intermediate said spools and respectively connected thereto for rotation therewith, ribbon feeding means mounted on the carriage, means for guiding the ribbons frpm the spools across the work sheets and interleaved therewith to said feeding means, separate means for tensioning the feeding movements of the ribbons, a plurality of normally ineffective locking means adapted to respectively cooperate with the peripheries of themembers to retain the spools against rotation,.means for actuating the ribbon feeding means and concomitantly rendering said locking means effective, and manually operable means for simultaneously releasing all tensioning means from engagements with said spools.

30. In a manifolding typewriter, the combination with a carriage'having a platen past which a work sheet is fed, of a collating frame fulcrumed on the carriage to swing forwardly from a normally'rearwardly inclined position and forming a support for the platen whereby the latter will be bodily moved rearwardly simultaneously with the forward swinging of the frame, a ribbon spool journaled on the carriage, ribbon feeding means mounted on the carriage, means for guiding the ribbon from the spool across the work sheet and in front of said platen to said feeding means, a peripheral member connected to the ribbon spool to rotate therewith and provided with a serrated periphery, means for tensioning the feeding movement of the ribbon, normally ineffective locking means adapted to cooperate with the periphery of the member to retain the spool against rotation, and means including a single manually operable lever for swinging the collating frame ftzfizrardly and the platen rearwardly, for a ating the ribbon feeding means, and for rendering the ribbon locking means effective.

31. In a manifolding typewriter, the combination with a carriage having a platen past which a work sheet is fed, of a collating frame fulcrumed on the carriage to swing forwardly from a normally rearwardly inclined position and forming a support for the platen whereby the latter will be ,bodily moved rearwardly simultaneously with the forward swinging of the frame, a ,ribbon spool journaled on the carriage, ribbonfeeding means mounted on the carriage, means for guiding the ribbon from the spool across the work sheet and in front of said platen to said f eding means, a peripheral member connected to the ribbon spool torotate therewith and provided with a serrated periphery, means for tensioning the feeding movement of the ribbon, normally ineffective locking means adapted to cooperate with the periphery of the member to retain the spool against rotation, and means including a single manually operable lever for swinging the collating frame forwardly and the platen rearwardly, for actuating the ribbon feeding means, and for rendering the ribbon locking means effective prior to the completion of the ribbon feeding movement.

32. In a manifolding typewriter, the combination with a carriage having a platen past which a work sheet is fed, of a collating frame fulcrumed on the carriage to swing forwardly from a normally rearwardly inclined position and forming a support for the platen whereby the latter will be bodily moved rearwardly simultaneously with the forward swinging of the frame, a ribbon spool journaled on the carriage, ribbon feeding means mounted on the carriage, means for guiding the ribbon from the spool across the work sheet and in front of said platen to said feeding means, a peripheral member connected to the ribbon spool to rotate therewith and provided with a serrated periphery, means for tensioning the feeding movement of the ribbon, normally ineffective locking means adapted to cooperate with the periphery of the member to retain the spool against rotation, connections between the collating frame and the ribbon feeding means for actuating the latter upon forward swinging movement of the form, and means including a single manually operable lever for swinging the collating frame forwardly and the platen rearwardly and for rendering the ribbon locking means effective prior to the complete forward movement of the collating frame and the completion of the feeding action of said feeding means.

33. In a manifolding typewriter, the combination of a carriage having a platen past which work sheets are fed, a non-rotatable shaft fixed to the carriage, a plurality of ribbon spools journaled on said shaft, peripheral members respectively disposed intermediate said spools and respectively connected thereto for rotation therewith, ribbon feeding means mounted on the carriage, means for guiding the ribbons from the spools across the work sheets and interleaved therewith to said feeding means, separate means for tensioning the feeding movements of the ribbons, a plurality of normally ineffective locking means adapted to respectively cooperate with theperipheries of the members to retain the spools against rotation, and means for actuating the ribbon feeding means and concomitantly rendering said locking means effective.

34. In a ribbon spool assembly, the combination with a supporting frame, of a nonrotatable shaft fixedthereto, a ribbon spool journaled on said shaft, ribbon feeding means, a peripheral member fixed to the spool to rotate therewith, means carried by the shaft for constantly tensioning the spool against feeding rotation, normally ineffective locking means adapted to engage the periphery of said member, and means for actuating the ribbon feeding means and concomitantly rendering said locking means effective.

35. In a ribbon spool assembly, the combination with a supporting frame, of a nonrotatable shaft fixed thereto, a plurality of ribbon spools journaled on the shaft, a plurality of members respectively connected to the spools to rotate therewith and provided with serrated peripheries, separate means carried by the shaft for constantly and individually tensioning the spools, normally ineffective locking means adapted to respectively engage the peripheries of the members to retain the spools against rotation, and means for rendering said locking means effective.

36. In a ribbon spool assembly, the combination with a supporting frame, of a nonrotatable shaft fixed thereto, a plurality of ribbon spools journaled on the shaft, a plurality of members respectively connected to the spools to rotate therewith and provided with serrated peripheries, means carried by the shaft for constantly and individually tensioning the spools. normally ineffective locking neans adapted to respectively engage the peripheries of the members to retain the spools against rotation and including a plurality of levers, locking pawls respectively connected to the levers for engaging the serrated peripheries of the members, means cooperating with the levers for normally reta ning said pawls in ineffective locking positions, and means for rendering said locking means effective.

37. In a ribbon spool assembly, the combination with a supporting frame, of a nonrotatable shaft fixed thereto, a ribbon spool journaled on said shaft, a peripheral member fixed to the spool to rotate therewith, means carried by the shaft for constantly tensioning the spool, normally ineffective locking means adapted to engage the periphery of said member, means for rendering said locking means effective, and manually operable means for releasing the tensioning means from engagement with the spool.

38. In a ribbon spool assembly, the combination with a supporting frame, of a nonrotatable shaft fixed thereto, a plurality of ribbon s ls journaled on the shaft, a plurality 0 members respectively connected to the spools to rotate therewith and provided with serrated peripheries, means carried by the shaft for constantly and individually tensioning the spools, normally inefiective locking1 means adapted 'to respectively engage t e peripheries of the members to retain the spools against rotation, means for rendering said locking means effective, and manually operable means for simultaneously releasing all tensionin means from engagements with said spoo s.

39. In a ribbon spool assembly, the combination with a supporting frame, of a nonrotatable shaft fixed thereto, a plurality of ribbon spools journaled on the shaft, a plurality of members respectively connected to the spools to rotate therewith and provided with serrated peripheries, means carried by the shaft for constantly and individually tensioning the spools. normally ineffective locking means adapted to respectively engage the peripheries of the members to retain the spools against rotation and including a plurality of levers, lockin pawls respectively connected to the levers or en aging the serrated peripheries of the mem rs, means cooperating with the levers for normally retaining said pawls in inefl'ective locking positions, means for rendering said locking means effective, and manually operable means for releasing the tensioning means from engagements with the spools.

40. In a ribbon spool assembly, the combination with a rotatable ribbon s l including a member having a serrate periphe normally inefiective means including a 100 ing pawl having a serrated surface consistent with and ada ted to engage the serrated peripher of t e member to lock the spool against ceding rotation, and means for rendering said locking means effective.

41. In a tygewriter a lurality of rotatable ribbon spoo each 1nc uding a peripheral member, ribbon feeding means, separate means for individually tensioning the 0015 against feeding movement a plurality 0 normally inefiective means ada ted to cooperate with the 1peripheries of sai members to lock the spoo s against feedin movement,and means for actuating the rib n feeding means and concomitantly rendering eflective simultaneously all of said locking means.

In testimonywhereof, we have hereunto subscribed our names.

' LEWIS C. MYERS.

GEORGE F. HANDLEY.

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