US2078263A - Automatic manifolding collator and carbon assembly - Google Patents

Description

April 27, 1937. A. w. METZNER AUTOMATIC MANIFOLDING COLLATOR AND CARBON ASSEMBLY a Sheets-Shet 1 Filed Nov. 2, 1931 VE 1' V w a 'A'ITORNEY April 27, 1937. A, w, METZNER AUTOMATIC MANIFOLDING COLLATOH AND CARBON ASSEMBLY Filed Nov. 2, 1531 3 Sheets-Sheet 2 April 1937. A. w. METZNER 2,078,263

AUTOMATIC MANIFOLDING COLLATOR AND CARBON ASSEMBLY Filed Nov. 2, .1931 3 Sheets-Sheet 3 "T32 $36561 TTORNEY strips of one-time Patented Apr. 27, 1937 UNITED STATES PATENT OFFICE AUTOMATIC MANIFOLDING COLLATOR AND CARBON ASSEMBLY lbert W. Metzner,

The Standard Register Company,

Dayton, Ohio, assignor to Dayton,

30 Claims.

This invention relates to manifolding apparatus, and more particularly to a typewriter attachment and method of operation for repetitiously employing short lengths of carbon or transfer sheets with continuous multiform or series connected stationery.

The present invention is a further development and amplification oi the apparatus and method of operation illustrated and described in co-pending application of John Q. Sherman, Serial No. 565,591, filed September 28, 1931.

For increased efliciency and rapidity of operation, it has become quite common practice to employ continuous strips of multiple forms arranged in superposed relation and fed through a writing machine, the written portions of which are detached at predetermined intervals upon transverse division or score lines. Usually such continuous record strips are interleaved with like transfer or carbon material which, after being once used, is discarded. In lieu of such continuous carbon strips, the use of which is expensive and involves great waste and economic loss, it has been proposed to employ 25 packets of transfer sheets carried in holders of various forms, through which the record strips are threaded and which must be manually retracted and readjusted between succeeding writing operations.

The present apparatus enables an ordinary typewriter to be converted into a billing machine for use of such continuous multi-form stationery, and enables the use therewith of ordinary carbon sheets which, being initially interleaved between the superposed record strips in proper registry with the terminal printed forms or sheet sections to be inscribed, are automatically fed through the writing machine in unison with the advance of the record strips and then retracted independ- 40 ently of the strips into registry with the succeeding forms or writing sections of the sheets and returned therewith to the writing machine for the next writing operation. The present apparatus comprises means for holding the record strips in their advanced position while the transfer or carbon sheets arerelatively retracted either manually or by mechanical means into operative registry with the next succeeding set of forms preparatory to being returned to the writing position, while the written forms from which the transfer sheets were retracted are detached.

The object of the invention is to simplify the construction as well as the means and mode of operation of manifolding apparatus whereby it will not only be cheapened in construction, but

will be more efficient in use, convenient, accurate and uniform in operation and unlikely to get out of repair.

A further object of the invention is to provide means for facilitating the shifting of transfer or carbon material out of and into registry with succeeding sets of superposed forms.

A further object of the invention is to provide improved means and method of operation wherein the transfer or record material is mechanically shifted relative to each other after each writing operation to present the transfer material in registry with succeeding sets of multiforms or record sheets, and whereby registry of the transfer material therewith is automatically maintained.

A further object of the invention is to provide a simple and inexpensive writing machine attachment for intermittently holding the ends of the record strips during relative movement of the transfer sheets and thereafter releasing the record strips for detachment of the used portions thereof.

With the above primary and other incidental objects in view, as will more fully appear in the specification, the invention consists of the features of construction, the parts and combinations thereof and the mode of operation, or their equivalents, as hereinafter described and set forth in the claims.

Referring to the accompanying drawings, wherein is shown the preferred form but obviously not necessarily the only form of the embodiment of the invention, Fig. 1 is a perspective view of a conventional form of typewriter to which the present apparatus has been applied. Fig. 2 is a perspective view of the apparatus, forming the subject matter hereof, removed from the writing machine. Fig. 3 is a. similar view illustrating mechanical means for shifting the transfer sheets relative to the record strips. Fig. 4 is a similar perspective view of the form of apparatus illustrated in Fig. 3 showing the parts in operated position. Fig. 5 is a longitudinal sectional view and Fig. 6 an end elevation of the operative parts illustrated in Figs. 3 and 4. Fig. 7 is a detail view of the transfer sheets separated from the record strips.

Like parts are indicated by similar characters of reference throughout the several views.

The present invention is applicable to manifolding apparatus of various forms including typewriters, billing machines, autographic registers and other forms of recording mechanisms, for illustrative purposes but with no intent to limit the invention or its application, it has been herein shown and will be described as applied to a conventional form of typewriter I, the platen roll 2 of which has been provided with feeding pins 3 for uniformly feeding marginally punched stationery in continuous strip form which is supplied from a traveling carrier 4 operatively coupled to and reciprocating in unison with the typewriter platen carriage 5. Such traveling carriage provides a convenient storage space for superfolded forms to prevent their disarrangement or mutilation.

The record material comprises successions of forms or record sheets marginally punched at 8 and interconnected end to end into continuous strip formation as at 6, such strips being superfolded one upon the other with succeeding forms or record sheets in registry with those of contiguous strips, the several superposed strips being transversely scored or perforated at spaced intervals as at 8 for separation into separate sheets or sections and preferably, though not necessarily, superfolded at spaced intervals reversely in proximate relation with such transverse score lines into zigzag formation, thereby forming a supply packet I to be located in the traveling carriage 4. The transfer or carbon material for use with such continuous interconnected stationery strips comprises a plurality of sheets of approximately the length of succeeding forms or record sheets comprising the continuous strip 6 but of somewhat greater width than such strips whereby the transfer sheets 9 project marginally beyond the record strips at opposite sides thereof.

While for convenience the assembly of transfer sheets 9, of which there may be any number to correspond with the number of continuous strips 5 being employed, may be interconnected into a unitary assembly by sewing, stapling or gluing such sheets at one corner or along one margin thereof leaving the remaining margins of the sheets free to facilitate their interleaved assembly between the superposed record strips, which transfer sheets are preferably entirely independent of each other, and, if desired, may be interconnected after assembly with the strips by means of conventional paper fastener clips Ii on opposite margins thereof as shown in Fig. 7.

It is not necessary nor essential that pin wheel feed devices be employed and the invention is equally operable with the ordinary friction feed device of a conventional typewriter. In the event, however, that feeding pins 3 are to be employed, the transfer sheets 9 are marginally punched as at l 2 for engagement over the pins of the feeding device. Such punched feeding holes l2 necessarily register with like holes in other transfer sheets of the assembly and with like feeding holes provided in the margins of the over and underlying record strips, through which registering holes the feeding pins 3 engage to positively and accurately advance the record strips with the superposed forms in registry with each other past the writing position.

Mounted upon the traveling carriage 5 of the typewriter and extending upwardly and rearwardly therefrom is a guide plate or table ll over which the inscribed portions of the record strips are advanced by the operation of the writing machine platen 2.

The construction thus far described is substantially the same as that disclosed and claimed in the copending application of John Q. Sherman aforementioned and forms no part per se of the present invention.

Located at the upper and rearward extremity of the guide plate or table I4, is a gripper element l5 mounted upon a rock shaft l6 and spring actuated into clamping engagement with the terminal ends of the superposed record strips 6 when the latter have been advanced to their maximum extent. The gripper member I5 is controlled by a reciprocatory push rod i1 operatively connected with a rock arm upon the extremity of the rock shaft Hi and having a guide bearing in a dependent bracket i9 projecting from the under side of the guide plate or table l4. Surrounding the push rod I! is an actuating spring 20 abutting at one end upon the stationary guide bracket [9 and at its opposite end upon a collar 2| carried by the push rod H. The construction is such that the expansive tension of the spring 20 tends to force the push rod i1 rearwardly thereby rocking the shaft i6 and causing the clamp member I 5 to be depressed into gripping engagement with the ends of the record strips which have been advanced to such position. At its forward end the push rod I1 is operatively connected with an arm 22 of an operating lever 23 pivotally supported upon the guide plate or table l4 and having thereon a stop shoulder 24 engaged by a latch or detent 25 pivoted at 26 to a dependent bracket or ear carried by the guide plate I. This latch or detent 25 normally holds the push the tension of the spring 20 and thereby holds the gripper member IS in elevated position to receive the ends of the record strips 6 projected therebeneath by their advance movement. At the limit of the feeding movement of the record strips 6, the latch 24 is disengaged by a slight upward punch upon the latch arm which is elongated for this purpose whereupon the reaction of the spring 20 will actuate the gripper member I 5 into clamping engagement with the ends of the strips 6 which will have been advanced to this position by the continued feeding movement of the platen roll of the writing machine. The length of the guide plate It or table over which the strips are fed is such that the strips are advanced a distance of approximately the length of two forms or writing sections beyond writing position before their extremities are engageable by the clamping member l5. At the limit of such ad- Vance movement of the strips the terminal ends thereof are projected beneath the clamping element 15, which as before mentioned is elevated to receive the strips therebeneath. The transfer sheets 9 being interleaved between the record strips, are advanced in unison therewith until in the final position of the strips these transfer sheets 9 occupy the position 93: indicated by dotted lines in Fig. 2. The detent latch 25 is disengaged from the stop shoulder 24 by a slight upward push, the detent being elongated for this purpose. Immediately upon its disengagement the reaction of the spring 20 actuates the push rod l'l rearwardly and upwardly to rock the shaft I 8 and cause the clamp element ii to descend into clamping engagement with the extremities of the record strips. While the strips are thus held immovable upon the table or guide plate It, the protruding margins of the record sheets 9 at each side of the strips 6 may be manually grasped and the record sheets slidingly retracted between the strips into registry with the next succeeding set of forms, which, at such time, are also positioned upon the guide plate or table ll beyond the writrod ll retracted against ing position. Having been thus registered with thereby oscillate the clamp member i upwardly,

releasing the strips 6, the inscribed terminal form portions of which may then be detached upon the transverse division or score lines. The platen roll 2 is then operated reversely to retract the extended portions of the superposed record strips 6 and the interleaved transfer sheets 9 about the platen roll into writing position preparatory, to the next writing operation.

In Figs. 3 to 6 inclusive there is illustrated mechanical means for shifting the transfer sheets relative to the record strips comprising a reciprocatory carrier 28 slidingly mounted upon the guide plate or table It and extending transversely therebeneath. Supplied in suitable bearings upon the reciprocatory carrier 23 is a transverse rock shaft 29 having at one end an operating lever 30 and carrying at each side of the table or guide plate l4, rocking cams 3| which engage pivoted gripper arms 32 pivoted at 33 to the reciprocatory slide 28. The gripper arms 32 are provided with clamping or gripping heads 34 which are preferably roughened, knurled or serrated for engagement with corresponding roughened, knurled or serrated surfaces 35 upon the reciprocatory carrier 23 and normally overlapped by the protruding margins of the transfer sheets 9. The gripper arms 32 are spring actuated into clamping engagement with the margins of the sheets 9 by retracting springs 36 against the tension of which the gripper arms 32 are raised out of-such gripping or clamping engagement by the rocking cams 3| upon rocking adjustment of the shaft 29 under influence of a retracting spring 31 secured to the operating lever 30. In Figs. 3 and 4, a

the protruding margins of the transfer sheets 9 have been torn away at 32 to better illustrate the gripping devices which would otherwise be partially obscured by the overlying portions of the transfer sheets 3.

The rock shaft 29 carries at its extremity a rocking finger or cam 38 which, when the reciprocatory carriage 28 is retracted, contacts with the end of the push rod l1 and actuates the push rod to rock the shaft i6 and thereby elevate the clamping member l5 against the tension of the spring 20. In the present construction the action of the spring 23 is reversed. Whereas in Figs. 1 and 2 the spring 20 tends to longitudinally move the push rod l1 rearwardly to efiect clamping action of the member IS, in the present embodiment the spring 23 tends to shift the rod H forwardly for the same purpose. This is due to reversal of the position of the rock arm carried by the rock shaft l6 to which the push rod is connected. The sliding carrier 23 is retracted by a spring 39 positioned on the under side of the plate or table ll. At the upper and rearward limit of its travel, the contact finger or cam 38 engages the end of the push rod II, as is shown in Fig. 3, thereby shifting the rod rearwardly against the tension of the spring 20 to elevate the clamping member 15 and release the ends of the strips, and to hold the clamping member l5 retracted preparatory to the next operation.

After the writing operation has been completed, the platen roll 2 is actuated to further advance the superposed record strips 6, as before described, until the ends are beneath the clamping element i3. During this advance movement the transfer sheets 9, being interleaved with the record strips, are carried in unison therewith to the position shown in Fig. 3, wherein the final ends of the protruding side margins of the sheets are positioned intermediate the heads 34 of the gripping arms 32 and the coacting roughened or knurled surface 35 upon the carrier 28. The

finger lever 33 being oscillated, its initial action is to withdraw the stop finger or cam 38 from the end of the push rod ll thereby releasing the rod H for longitudinal movement under influence of the spring 2|! whereby the clamp member i5 is caused to grip the ends of the strips. At the same time the cams 3| upon the rock shaft 29 to which the finger lever 3li is connected, are oscillated out of engagement with the gripper arms 32 allowing these arms to be retracted by the springs 36 into gripping engagement with the margins of the transfer sheets 9, then interposed between the heads 34 and the gripping surfaces 35. Continued pulling movement upon the lever 30 effects a sliding movement of the lover longitudinally upon the guide plate or table Hi against the tension of the retracting spring 39 carrying with it the engaged transfer sheets 9 which are retracted relative to the strips 6 between which they are interleaved while the latter are held immovable by the clamping member 1 5. Upon release of the lever 3|) such lever is immediately retracted by its spring 31 thereby oscillating the rock shaft 29 to cause the elevating cams to engage with the gripper arms 32 and so elevate such arms against the tension of their springs 38 out of engagement with the margins of the transfer sheets 9. The spring 39 retracting the carrier 28 causes operative engagement of the fingers or cams 33 with the end of the push rod H to release the ends of the strips 6 from beneath the clamping member l5 by oscillating the latter to inoperative position as before described.

The under side of the plate or table i4 is provided with a stop for limiting the travel movement of the carrier 23. Therefore the carrier 28 being given a definite path of travel and arrested each time in predetermined position will automatically register the transfer sheets 9 in proper relation with the succeeding printed set of printed forms preparatory to the next writing operation. Having positioned the transfer sheets relative to the forms the carrier 23 returns idly from the position shown in Fig. 4 to that shown in Fig. 3, leaving the transfer sheets positioned relative to the strips for the succeeding writing operation, preparatory to which the record strips and interleaved transfer sheets are retracted about the platen roll into writing position by reverse movement of the platen roll.

From the above description it will be apparent that there is thus provided a device of the character described possessing the particular features of advantage before enumerated as desirable, but which obviously is susceptible of modification in its form, proportions, detail construction and arrangement of parts without departing from the principle involved or sacrificing any of its advantages.

While in order to comply with the statute the invention has been described in language more or less specific as to structural features, it is to be understood that the invention is not limited to the specific feaures shown, but that the means and construction herein disclosed comprise the preferred form of several modes of putting the invention into effect, and the invention is therefore claimed in any of its forms or modifications within the legitimate and valid scope of the appended claims.

Having thus described my invention, I claim:

1. The combination with a writing machine having unison feeding means for a plurality of superposed record strips and interleaved transfer sheets, of holding means for holding the inscribed portions of the strips, means beyond the writing position for retracting the interleaved transfer sheets relative thereto, and a lever mechanism operating to disengage the holding means whereby the strips are released.

2. The combination with a writing machine having unison feeding means for a plurality of superposed record strips and interleaved transfer sheets, of relatively movable gripper means for the record strips and the transfer sheets engageable therewith beyond the writing position and adapted by their movement to effect relative adjustment of the record strips and transfer sheets by which the transfer sheets are positioned in registry with the succeeding portions of the strips to be inscribed.

3. The combination with a writing machine having unison feeding means for a plurality of superposed record strips and interleaved transfer sheets, means beyond the writing position for gripping the transfer sheets, of a gripper device engageable with the record strips beyond writing position for holding the record strips immovable while the transfer sheets are slidingly retracted relative thereto into registry with the succeeding portions of the strips to be inscribed.

4. The combination with a writing machine having unison feeding means for a plurality of superposed record strips and interleaved transfer sheets, means beyond the writing position for arresting the movement of the transfer sheets, the

margins of which extend laterally beyond those of the record strips, of a gripper engageable terminally of the record strips independently of the transfer strips, and means engaging the protruding margins of the transfer sheets for retracting the transfer sheets independently of the record strips.

5. The combination with a writing machine having unison feeding means for a plurality of superposed record strips and interleaved transfer sheets the margins of which extend beyond those of the strips, holding means for gripping the strips independently of the transfer sheets, and means for gripping the protruding margins of the sheets independently of the strips for relative retractive. movement into registry with the succeeding portions of the strips to be inscribed.

6. The combination with a writing machine having unison feeding means for a plurality of superposed record strips and interleaved transfer sheets, of holding means engageable with the strips independently of the transfer sheets, means beyond the writing position by which the transfer sheets may be grasped independently of the strips for retractive movement into registry with succeeding portions thereof to be inscribed, and

an actuator independent of the feeding means for advancing said last mentioned means from the retracted position.

7. The combination with a writing machine having unison feeding means for a plurality of superposed record strips and interleaved transfer sheets the margins of which protrude beyond those of the strips, holding means engageable with the strips independently of the transfer sheets, means beyond the writing position engaging the protruding margins of the transfer sheets independently of the strips for retracting the transfer sheets into registering relation with succeeding portions thereof to be inscribed.

8. The combination with a writing machine having unison feeding means for superposed strips of record material and interleaved transfer sheets, a gripper member located in distantly spaced relation with the writing machine and engageable with the record strips independently of the transfer sheets when the record strips have been advanced a predetermined distance beyond writing position, movable gripper means for the transfer material located beyond the writing position and manually operable means in proximate relation with the writing machine for controlling the operation of the gripper member and the gripper means, the transfer sheets being slidingly retractable relative to the strips while the latter are held by said gripper member.

9. The combination with a writing machine having unison feeding means for superposed strips of record material and interleaved transfer sheets, a gripper member engageable with the record strips independently of the transfer sheets, an actuating spring therefor, a detent for holding the gripper member in adjusted position against the tension of its spring, manually operable means for adjusting the gripper member, and means beyond the writing position for retracting the transfer sheets while the strips are held by the gripper member.

10. The combination with a writing machine having unison feeding means for superposed strips of record material and interleaved transfer sheets, a gripper member for engagement of the record strips independently of the transfer sheets, a reciprocatory carrier for the transfer sheets located beyond writing position, and means for detachably engaging the transfer sheets therewith for sliding movement independently of the strips while the latter are held by the gripper member.

11. The combination with a writing machine having unison feeding means for superposed strips of record material and interleaved transfer sheets, a stationary gripper engageable with the record strips independently of the transfer sheets and a movable gripper engageable with the transfer sheets independently of the strips,

and control means therefor adapted by its initia] operation to effect engagement of both grippers with the respective materials and upon further movement to effect adjustment of the transfer sheets relative to the record strips.

12. The combination with a writing machine having unison feeding means for superposed strips of record material and interleaved transfer sheets, a reciprocatory carrier for the transfer sheets located beyond the writing position and a gripper for the record sheets, and interconnecting means for controlling the gripper by the movement of the carrier.

13. The combination with a writing machine having unison feeding means for superposed strips of record material and interleaved transfer sheets, a reciprocatory carrier for the transfer sheets, a gripper for the record strips and common manually operable control means therefor by which the gripper is caused to hold the strips while the transfer sheets are shifted relative thereto by the movement of the carrier.

14. The combination with a writing machine having unison feeding means for superposed strips of record material and interleaved transfer sheets, a reciprocatory carrier, gripper means 75 the carrier, in one direction,

carried thereby engageable with the transfer sheets independently of the record strips, a gripper means engageable with the record strips independently of the transfer sheets, and operative connections by which both gripper means are caused to engage the respective record and transfer materials preparatory to the movement of and both gripper means being adapted to be released upon return movement of the carrier.

15. The combination with a writing machine having unison feeding means for superposed strips of record material and interleaved transfer sheets, a reciprocatory carrier for the transfer sheets located beyond the writing position, a gripper for the record strips and operating means mounted upon the carrier which by its initial operation releases the gripper for engagement with the strips and upon return movement of the carrier effects release of the gripper from the strips.

16. The combination with a writing machine having unison feeding means for superposed strips of record material and interleaved transfer sheets, a reciprocatory carrier for the transfer sheets, gripper means carried thereby operable into and out fer sheets, a manually operable lever mechanism adapted by its-initial movement to adjust the gripper means into engagement with the transfer sheets and by further movement thereof to move the carrier to shift the transfer sheets relative to the strips.

17. The combination with a writing machine having unison feeding means for superposed strips of record material and interleaved transfer sheets, a reciprocatory carrier for the transfer shbets, a gripper for the record strips, a manually operable lever adapted by its initial movement to effect the engagement of the gripper with the record strips and mechanism associated with the lever by its further movement to effect movement of the carrier to slidingly adiustthe sheets relative to the strips.

18. The combination with a writing machine for superposed strips of record material and interleaved transfer sheets, reciprocatory gripper means for the transfer sheets, stationary gripper means for the record strips, and common control means therefor adapted by its initial operation to effect engagement of both gripper means respectively with the sheets and strips, and by further movement effect movement of the sheet gripper means to shift the transfer sheets relative to the strips, and means to automatically release the respective gripper means subsequent to the adjustment of the transfer sheets.

19: The combination with a writing machine having feeding means for superposed portions of record material and interleaved portions of transfer material retractable relative thereto into registry with succeeding portions of the record material of a retractor for the transfer material normally disengaged therefrom, the transfer material being moved the retractor, by means, said retractor being engageable with the transfer material at the completion of the material feeding operation and disengageable therefrom at the completion of the retracting operation.

20. The combination with a writing machine having feeding means for superposed portions of record material and interleaved portions of opposite transfer material, the transfer material being retractable relative to the record material into registry with succeeding portions thereof, of a retractor for the transfer material normally disengaged therefrom and relative to which the transfer material is movable by the writing machine feeding operation into engaging position, and operating means for effecting engagement of the retractor with the transfer material at the completion of the material feeding operation and for effecting disengagement therefrom at the completion of the retractive movement thereof.

21. The combination with a writing machine having feeding means for superposed portions of record material and interleaved portions of transfer material, the transfer material being retractable relative to the record material into registry with succeeding portions thereof, of reciprocatory gripper transfer material upon material feeding operation and disengageable therefrom at the completion of the retraction of the transfer material and a traveling carrier for said grippers.

22. The combination with a writing machine having feeding means for superposed portions of record material and interleaved portions of transfer material, the transfer material being retractable relative to the record material into registry with succeeding portions thereof, of a gripper means for the record material and gripper means for the transfer material and operative interconnecting means by which the engagement of one-gripping means with the transfer material will effect engagement of the other gripping means with the record material and means for effecting release of the record gripping means upon release of the transfer material gripping means.

23. The combination with a writing machine having feeding means for superposed portions of record material and interleaved portions of transfer material, the transfer material being retractable relative to the record material into registry with succeeding portions thereof, of a holding means for the record material, engageable therewith independently of engagement with the transfer material, a reciprocatory retractor for the transfer material, said retractor engaging sides of the transfer material beyond the edges of the record material, and means for effecting engagement of the record material holding means upon movement of the retractor in one direction and its release upon such movement in the opposite direction.

24. The combination with a writing machine having feeding means for superposed portions of record material and interleaved portions of transfer material, the transfer materlal being retractable relative to the record material into registry with succeeding portions thereof, of a holding means for the record material, engageable therewith independently of engagement with the transfer material, a reclprocatory retractor for the transfer material, said retractor engaging opposite sides of the transfer material beyond the margins of the record material, and means for automatically eflecting holding engagement of the record material holder upon initiation of retractivc: movement of the transfer material and release thereof after the completion thereof.

25. The combination with a writing machine having feeding means for superposed portions of record material and interleaved portions of transmeans engageable with the 1 fer material, the transfer material being retractable relative to the record material into registry with succeeding portions thereof, of a holding means for the record material, engageable therewith independently of engagement with the transfer material, a reciprocatory retractor for the transfer material, said retractor including clamps engaging the transfer material beyond the margins of the record material, and means for controlling the operation of the record material engaging means by the operation of the transfer material retractor.

26. A carbon shifter means for writing machines wherein superposed record material strips of less width than interleaved sheets of transfer material are advanced in unison about a rotary platen roll of the writing machine and past writing position and the transfer material periodically retracted relative to the record material preparatory to further unison advance movement, ineluding a movable carrier located beyond the writing position for the transfer material with which the sheets of transfer material are enageable in interleaved relation with the record material, a guide frame upon which the carrier is mounted for to and fro motion and record strip engaging means carried by the platen roll engaging the record material and the transfer material, said record engaging means holding the record strips in advanced position with corresponding portions of the superposed strips in registry while the strips of transfer material are retracted by retrograde movement of the carrier.

27. A carbon shifter means for writing machines wherein superposed record material strips of less width than interleaved sheets of transfer material are advanced in unison about a rotary platen roll of the writing machine and past writing position and the transfer material periodically retracted relative to the record material preparatory to further unison advance movement, including a movable carrier located beyond the writing position for the transfer material with which the sheets of transfer material are engageable in interleaved relation with the record material, a guide frame upon which the carrier is mounted for to and fro motion, feeding pins associated with the platen roll and progressively engaging in spaced marginal holes in the record material and the transfer material, said pins holding the record material stationary relative to the platen roll in an advanced position during the retractive movement of the transfer material between the record strips by the retraction of the carrier.

28. A carbon shifter means for writing ma.- chines wherein superposed record material strips of less width than interleaved sheets retracted relative to the record material preparatory to further unison advance movement, including a movable carrier located beyond the writing position for the transfer material with which the sheets of transfer material are engageable in interleaved relation with the record material, a guide frame upon which the carrier is mounted for to and fro motion, and record strip engaging means holding the advanced edge thereof for retaining the record strips in relatively stationary relation to the platen roll independently of the transfer material during retractive movement thereof by retraction of the carrier.

29. In a transfer sheet shifter means for writing machines having a carriage mounted thereon for relative movement therewith wherein strips of record material of less width than interleaved sheets of transfer material are advanced in unison past writing position and the transfer sheets relatively retracted periodically preparatory to further unison advance motion including a traveling carrier located beyond the writing position for temporarily engaging the transfer sheets only during the retractive movement of the transfer sheets, a guide frame upon which the carrier is mounted for to and fro motion and means for detachably mounting said guide frame on the said relatively moving carriage for the purpose described.

30. A carbon shifter means for writing machines wherein record material strips of less width than interleaved sheets of transfer material are advanced in unison past writing position and transfer material relatively retracted periodically preparatory to further unison advance motion, including a traveling carrier located beyond the writing position for temporarily engaging the transfer sheets only during the retractive movement of the same, a guide frame upon which the carrier is mounted for to and fro motion and means for mounting said frame upon the carriage of the writing machine for to and fro travel therewith.

ALBERT W. ME'IZNER.

CERTIFICATE OF CORRECTION.

Patent No. 2.078,265.

of the above numbered patent re first column, lines 38-39,

beyond the writing position sheets,"; rection therein that the sam April 27, 1937.

ALBERT w. METZNER.

It is hereby certified that Patent Office.

Signed and sealed this 6th day of July, A. D. 1937.

(Seal) claim 4, strike out the words and co 7 for arresting the movement of the transfer Letters Patent should be read with Henry Van Arsdale Acting Commissioner of Patents.

error appears in the printed specification quiring correction as follows: .Page 4,

ma "means fer material, the transfer material being retractable relative to the record material into registry with succeeding portions thereof, of a holding means for the record material, engageable therewith independently of engagement with the transfer material, a reciprocatory retractor for the transfer material, said retractor including clamps engaging the transfer material beyond the margins of the record material, and means for controlling the operation of the record material engaging means by the operation of the transfer material retractor.

26. A carbon shifter means for writing machines wherein superposed record material strips of less width than interleaved sheets of transfer material are advanced in unison about a rotary platen roll of the writing machine and past writing position and the transfer material periodically retracted relative to the record material preparatory to further unison advance movement, ineluding a movable carrier located beyond the writing position for the transfer material with which the sheets of transfer material are enageable in interleaved relation with the record material, a guide frame upon which the carrier is mounted for to and fro motion and record strip engaging means carried by the platen roll engaging the record material and the transfer material, said record engaging means holding the record strips in advanced position with corresponding portions of the superposed strips in registry while the strips of transfer material are retracted by retrograde movement of the carrier.

27. A carbon shifter means for writing machines wherein superposed record material strips of less width than interleaved sheets of transfer material are advanced in unison about a rotary platen roll of the writing machine and past writing position and the transfer material periodically retracted relative to the record material preparatory to further unison advance movement, including a movable carrier located beyond the writing position for the transfer material with which the sheets of transfer material are engageable in interleaved relation with the record material, a guide frame upon which the carrier is mounted for to and fro motion, feeding pins associated with the platen roll and progressively engaging in spaced marginal holes in the record material and the transfer material, said pins holding the record material stationary relative to the platen roll in an advanced position during the retractive movement of the transfer material between the record strips by the retraction of the carrier.

28. A carbon shifter means for writing ma.- chines wherein superposed record material strips of less width than interleaved sheets retracted relative to the record material preparatory to further unison advance movement, including a movable carrier located beyond the writing position for the transfer material with which the sheets of transfer material are engageable in interleaved relation with the record material, a guide frame upon which the carrier is mounted for to and fro motion, and record strip engaging means holding the advanced edge thereof for retaining the record strips in relatively stationary relation to the platen roll independently of the transfer material during retractive movement thereof by retraction of the carrier.

29. In a transfer sheet shifter means for writing machines having a carriage mounted thereon for relative movement therewith wherein strips of record material of less width than interleaved sheets of transfer material are advanced in unison past writing position and the transfer sheets relatively retracted periodically preparatory to further unison advance motion including a traveling carrier located beyond the writing position for temporarily engaging the transfer sheets only during the retractive movement of the transfer sheets, a guide frame upon which the carrier is mounted for to and fro motion and means for detachably mounting said guide frame on the said relatively moving carriage for the purpose described.

30. A carbon shifter means for writing machines wherein record material strips of less width than interleaved sheets of transfer material are advanced in unison past writing position and transfer material relatively retracted periodically preparatory to further unison advance motion, including a traveling carrier located beyond the writing position for temporarily engaging the transfer sheets only during the retractive movement of the same, a guide frame upon which the carrier is mounted for to and fro motion and means for mounting said frame upon the carriage of the writing machine for to and fro travel therewith.

ALBERT W. ME'IZNER.

CERTIFICATE OF CORRECTION.

Patent No. 2.078,265.

of the above numbered patent re first column, lines 38-39,

beyond the writing position sheets,"; rection therein that the sam April 27, 1937.

ALBERT w. METZNER.

It is hereby certified that Patent Office.

Signed and sealed this 6th day of July, A. D. 1937.

(Seal) claim 4, strike out the words and co 7 for arresting the movement of the transfer Letters Patent should be read with Henry Van Arsdale Acting Commissioner of Patents.

error appears in the printed specification quiring correction as follows: .Page 4,

ma "means

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