US2124996A

US2124996A - Carbon stripping device

Info

Publication number: US2124996A
Application number: US42449A
Authority: US
Inventors: James W Anderson
Original assignee: GILMAN FANFOLD CORP
Current assignee: GILMAN FANFOLD Corp
Priority date: 1935-09-27
Filing date: 1935-09-27
Publication date: 1938-07-26
Anticipated expiration: 1955-07-26

Description

y 1938. J. w. ANDERSON 2,124,996

CARBON STRIPPING DEVICE Filed Sept. 27, 1935 5 Sheets-Sheet 1 5 Sheets-Sheet 2 J. W. ANDERSON CARBON STRIPPING DEVICE Filed Sept. 27, 1935 July 26, 1938.

llll/g Jill 26, 1938.

J. w. ANDERSON CARBON STRIPPING DEVICE Fil'ed Sept. 27, 1955 5 Sheets-Sheet 3 y 1938. J. w. ANDERSON 2,124,996

CARBON STRIPPING DEVICE Filed Sept'. 27, 1935 5 Sheets-Sheet 4 July 26, 1938. v J. w. ANDERSON CARBON STRIPPING DEVICE Filed Sept. 27, 1935 5 Sheets-Sheet 5 Patented July 26, 1938 PATENT OFFICE CARBON STRIPPING DEVICE James W. Anderson, Niagara Falls, N. Y., assignor to Gilman Fanfold Corporation, Niagara Falls, N. Y., a. corporation of Delaware Application September 27, 1935, Serial No. 42,449

- 27 Claims. (01. 197-426) This invention relates to typewriting machines and equipment for typewrit'ing machines, and, with respect to its more specific features, it relates to the transfer or carbon equipment for such machines and to parts of typewriting machines in their aspects of controlling the transferequipment and the worksheets associated with the transfer, or carbon, sheets.

One object of the invention is the provision m of a simple and practical form of carbonstripper, or transfer-stripper, which'may be of the standard length of carbon strippers hereto; fore employed for typewriting machines, and which nevertheless hasa greatly increased trans- 'l5 ferring capacity and longevity.

Another object of the invention is the provision of a simple and eflicient form of carbonstripper employing a plurality of superposed carbon sheets and wherewith the position of said sheets relative to each other is under positive control and which is adapted to relieve many objectionable frictional or binding effects hitherto encountered in connection with manifold equipment in typewriting machines.

Another object is the provision of a simple and practical form of carbon-stripper whereby the structure of typewriting machines of the Wernery and Smith type, as exemplified in U. S. Patent No. 1,132,055, patented March 16, 1915, may be much simplified, as by omission of the platen lifting or platen swinging feature and its attendant details.

Another object of the invention is the provision of an efiicient andsimple form of carbonshifter capable of use in machines of the Wernery and Smith type aforesaid, whether said platen-lifting or platen-swinging feature be or 'be not retained in such machine.

Another object of the invention is the provision of a simple and practical construction of carbon, or transfer, equipment which readily accommodates itself to the many diiferent manipulations of the worksheets attendant upon the operation of typewriting machines.

Another object is to provide an eflicient, simple and practical construction of carbon-stripping device useful in various different types of typewriting machines.

Another object is the provision of a practical, simple and eflicient form of combined worksheets and carbon-stripper as a supply device for typewriting machines.

Another object is the provision of a simple and practical form of transfer, or carbon, sheet for use in typewriting machines.

' Another object of the invention is the provision of an efficient and practical carbon-stripper for use in typewriting machines and having simple and improved features promotive of elimination of the binding effect of the carbon leaves on the worksheets and constructed so that fresh carbon surfaces may readily be supplied by mere manipulation of the carbon leaves of the stripper itself and without the addition of extra carbon leaves.

Other objects of the invention will be in part obvious and will in part appear hereinafter.

The invention accordingly comprises the features of construction, combination of elements and arrangement of parts which will be exemplifield in the construction hereinafter set forth, and the scope of the application of which will be indicated in the claims.

For a more complete understanding of the nature and objects of the invention, reference is had to the following detailed description and to the accompanying drawings in which:

Fig. 1 is a diagrammatic perspective view illustrative of an ordinary typewriter carriage and platen and showing applicants carbon-stripper associated with relatively superposed worksheets, as at the beginning of typing the advance worksheet sections;

Fig. 2 is an enlarged, vertical cross-section through Fig. 1, showing the worksheets and carbon-stripper, after being typed, advanced from the position of Fig. 1, the stripper being in checked position;

Fig. 3 is a similar cross-section to Fig. 2, but shows the-feed pressure rolls depressed and the worksheets advanced relative to the stripper and the most advanced typed section torn off;

Fig. 4 is an enlarged detail of Fig. 2 or Fig. 3;

Fig. 5 is a perspective view of one construction of carbon-stripper embodying the present invention, the thickness of the transfer, or carbon. sheets being exaggerated for clearer disclosure;

Fig. 6 is a longitudinal section centrally of Fig. 5;

Fig. 7 is a perspective of a single strippersheet of Fig. 5, and looking at the face 'of the sheet opposite from that seen in Fig. 5;

Fig. 8 is a perspective view illustrating a modifled construction of stripper-sheet which may be employed, the thickness of sheets being exaggerated as in the other figures, and a portion being cut out to illustrate detail construction;

Fig. 9 is a longitudinal sectional view as in Fig. 6, and showing the path of the worksheets relative to the stripper-sheets. In Fig. 9, the

worksheets and carbon-stripper in general relation as a supply device for typewriting machines;

Fig. 10 illustrates in perspective some parts .of the checking device;

Fig. 11 is a transverse section of a portion of the stripper showing a fastener element of the checking device I 1 Fig. 12 is a perspective view illustrative of worksheets associated for use as a supply for typewriting machines embodying this invention;

Fig. 13 is a perspective view of a stripper sheet similar to that of Fig. 7 but slightly modified;

Fig. 14 is a perspective view of a portion of a stripper generally similar to that of Fig. 1 but modified in some features;

Fig. 15 is a perspective view of a stripper em bodying this invention associated with a machine of the type of the Wernery and Smith Patent 1,132,055;

Fig. 16 is a vertical, longitudinal section through a portion of the machine of the Wernery and Smith patent with the stripper of the present invention embodied therein;

Fig. 17 is a view generally similar to Fig. 16 but illustrating the stripper and worksheets in a different position; and

Fig. 18 is a view showing a portion of the Wernery and Smith machine embodying the present invention, the platen being shown in full lines in lifted position, and the sheets being straightened out, as customary in the Wernery and Smith machine.

Referring llOWjllOl'QSDBCifiCBJlY to the drawings, the platen carriage of an ordinary typewriting machine which is reciprocally shiftable in letter-spacing direction is illustrated in Fig. 1, the numeral I indicating the side pieces of the carriage frame in which is journaled the cylindrical platen 2, rotatively shiftable in forward line-spacing direction by actuation of the linespace mechanism of the machine (not shown) and in the opposite direction by grasping the hand wheel or knob 3. Numerals 4 indicate the lower feed rolls which are movable'toward and from the platen to grip and release the worksheets and any interposed transfer sheets. The feed rolls 4 may be moved by turning the pivoted hand lever 5, in one direction, and the latter actuates cam 6 to shift the feed roll carrier I around its pivot 8 to lower the feedrolls and retain them in position in which the worksheets are released from the feed-grip of the platen and these feed rolls (see Fig. 3). Actuation of the lever 5 in the opposite direction shifts or turns cam 6 in the opposite direction permitting spring 9 to shift the feed roll carrier in direction to lift the feed rolls 4 into worksheet-gripping cooperation with the platen for feeding the gripped worksheets when the platen is rotated in either direction (see Fig. 2). A type bar of usual construction and operation is indicated for typing the worksheets at the typing line of the machine, shown at I0. As the construction and operation of ordinary typewriting machines are well known, it is deemed unnecessary to illus-v It is also to be under}- stood that the machine parts herein illustrated" trate the entire machine.

are merely exemplary and indicative of parts of indicates the rear paper table of the machine, which may have a rounded upper end I2.

I The paper record sheets or strips, herein referred to generally as worksheets, are continu ous and may-be as long as desired. The supply of worksheets may come from any suitable source, .as from a roll or rolls, or from a pack or packs of zigzag folded worksheets. In Fig. 12, three worksheets I3 are shown in superposed relation coming from a zigzag supply pack I4, in which latter the three worksheets are interfolded as a unit in a zigzag manner, heretofore well known. Each worksheet is preferably divided into successive sections by a longitudinal series of transverse, equi-spaced weakening lines I5, which may be perforations whereby the sections may readily be torn apart. Or a knife or tearing-bar may be employed. Though three worksheets are illustrated, it will be understood that a greater or lesser number may be employed. In the usual and preferred practice, each worksheet has a longitudinal series of similar printed forms I6. For the typing operation, a plurality of the worksheets are superposed with the printed forms and weakening lines of the different sheets in registry in superposed relation so that typing on the original worksheet may be duplicated in the same relative position on underlying worksheets and so that the weakening or tear-off lines I5 of different worksheet sections will arrive in substantial registry at tearoff position in the typewriting machine.

A feature of the invention concerns the provision of a carbon stripper, the carbon or transfer sheets of which may be of merely normal length but also may be shifted about so as to be used either end foremost and thus provide for utilizing the fresh transfer material of one transfer section of the transfer sheet when that of the other transfer section has become depleted. In the preferred construction, the stripper includes a plurality of relatively superposed carbon, or transfer, sheets II, each of which may be merely an integral transfer, or carbon, sheet, of any of the usual materials heretofore employed for transferring typing. The ordinary manifolding paper coated with carbontransfer material, heretofore commonly used in typewriting machines, is suitable for the purpose.

In order to avoid certain binding effects on the worksheets, and to promote the shifting about of the stripper-sheets, as will hereinafter appear, the present invention contemplates threading the underlying worksheets through an aperture or opening in the stripper intermediate the fore and aft ends thereof. As shown in Fig. 5, each stripper-sheet, or transfer-sheet II, has an opening or aperture I8, for threading the underlying worksheets therethrough, and the transfer sheets I! are attached together so as to control the relation of the apertures I8 to each other and also the relation of the transfer, or stripper, sheets II, to each other, as will hereinafter appear. As it is designed to provide for easy relative shift movement between the transfer sheets and the worksheets threading through theapertures I8, said apertures should be of suflicient extent both longitudinally and transversely to admit of the free and unobstructed passage of a relatively large number of worksheets which may be employed. The dimensions of the apertures longitudinally of the sheets may be relatively larger. than required for easy passage of worksheets, and it is preferred to have the transverse dimension somewhat comparative but greater than the width of the .is of area sufficient-for manifolding cooperation with a worksheet section or printed form l6, ahead of the aperture so the operator may rely upon obtaining copy on underlying worksheets of entries typed on the original worksheet. While it is preferred that the transfer area shall be coextensive with the stripper-sheets ll, both lengthwise and widthwise, it is to be understood that some departure from complete coating is permissible undercertain conditions, as where the entire length of printed forms it is not to be typed. It is a distinct and important advantage, however, to employ stripper-sheets H which are completely coated with transfer material throughout, as such sheet material is readily available. And in conjunction with the apertures l8, complication in operation of the stripper is avoided.

When the apertures l8 are made within the transfer or carbon area of an integral transfer sheet, and completely through the sheet, as illustrated in Fig. 5, there is assurance that these apertures it are bonded fore and'aft by transfer material, which latter will lie close to the edges of the apertures in each sheet, so that manifolding typing may be done as close to the edge of the'aperture as desired. Also, as these apertures are at times concealed, it is preferred that the fore end of the aperture register with the weakening line I 5 or be close thereto during typing so that the operator, by observing the position of the weakening line it: as the latter approaches the typing line, may be guided as to the approach of the aperture to the typing line.

As illustrated, the stripper-sheets are attached together and provide a compact, unitary 'pack of relatively superposed manifolding transfer sheets. Any means lending itself to the operation "of the invention may be used for securing the transfer sheets together. As shown in the drawings, the stripper-sheets are firmly connected together aft of the apertures by cooperative snap-fastener members 2i and 22, the headed fastener pins 2t passing through fastener openings 23 in the superposed stripper-sheets and being removably gripped and'retained in the resiliently acting fastener sockets 22. These fastener members 2E and 22 may be of known construction and made of relatively rigid metal. They secure the transfer sheets together against substantial longitudinal movement relative to each other; they maintain the apertures It at predetermined distances from the line of attachment between the transfer sheets when the stripper is in operative relation and they control the relation of the apertures of different transfer sheets to each other.

As illustrated, the apertures it of different transfer sheets are in superposed registry and such is the preferred arrangement, as it is simple and makes for convenient threading of the worksheets .through the different transfer sheets and through the stripper. However, other relative positions of the apertures may be employed within the scope of this invention (see Fig. 14).

A device or means is provided for checking, or arresting, the advance of the transfer sheets if in their course around the 'platen.- Within the broader aspects of this invention, the checking device may take numerous forms. A practical construction may include the relatively rigid bar 25 which is detachably secured or connected to the pack of transfer sheets on the platen-side of the latter. The bar 25 is preferably disposed at the end of the aft sections 20, of the pack and remote from the worksheet-threading apertures l8. As illustrated this bar 25 serves as a mounting or carrier for the fastener sockets 22, the latter being suitably secured to bar 25. The checking device may also include a worksheet guiding and supporting device including the relatively rigid plate or member 26 having recurving ends 271, on which latter the fastener-pins it may be mounted as illustrated. Member 26 provides a loop through which all the relatively superposed worksheets loosely pass on their approach to the apertures H8. The bar 25 and plate 26 each provide also for bracing the pack of transfer sheets transversely when attached to the pack.

At each of the opposite ends of each transfersheet If is a foldable, transversely'disposed extension 28 integral with the sheet t'l. This extension may be folded to position opposite the main body of this sheet H, as on the dotted line 29, at which the sheet ll may be creased if desired. The so folded extension 28 is shown in Figs. 6 and 9, the fastener openings 23 being so located on opposite sides of the lineof fold as to register with each other after the extension is folded. The fastener pins 2i pass through the contiguous folded ends of the relatively superposed transfer sheets H. The length of the stripper-sheets or transfer-sheets, in the preferred embodiment of the invention, should be sufficient to provide a foldable extension 28 at each end of the sheets H in addition to the operative length of the two transfer sections 99 and 2t.

The preferred course or path of the worksheets coming from the pack M or other supply is readily understood from the drawings. The superposed, continuous worksheets may pass through the aforesaid loop and run beneath or outside the rear or aft sections N, of all the transfer sheets. The upper worksheet it is then threaded through the apertures so as to be adapted to lie against the cylindrical or curved platen 2 and opposite the fore section it of j the immediately adjacent transfer sheet if. The

intermediate worksheet i3 is threaded through I sheet may' continue its position opposite to but outside the fore sections iii of both transfer \sheets without entering the apertures it.

.The assembled worksheets and stripper afore described provide a manifolding supply device for introduction to and use in typewriting machines. Having introduced the advance ends of the worksheets and interleaved fore sections of the transfer sheets between the platen 2 and feed rolls 6, the stripper and worksheets will occupy typing position for manifolding substantially as shown in Fig. l. Preferably the advance edges 30' of the worksheets will be arranged sufficiently ahead of the advance edges of the transfer sheets ill-as to permit the worksheets to be grasped as a unit without grasping the transfer sheets. But these advance edges may be otherwise related.

Typing now begins, the typing line being indi-- cated by the arrow 3|. Imprint on the original worksheet will be effected by the usual. typewriter ink ribbon and line spacing will be accomplished in the manner and by themechanism well known in typewriting machines. 'As linespacing proceeds, the checking-device also advances with the transfer sheets l1 and may ride over the end If of the rear paper table to position between this table and the platen, and until further advance of the transfer sheets is checked or arrested by the platen and paper table preventing further advance of the checking device. The operator may effect the aforesaid operations by the usual line spacing mechanism or by grasping and pulling the worksheets forward. As linespacing proceeds the apertures l8. also advance or shift around the platen 2 toward the typing or printing line, 3l.'

Having finished typing on the advance set of worksheet forms, it will be desired to then dispose the transfer sheets in interleaved relation with the succeeding set of worksheet forms. In the conditions prevalent in typewriting machines having curved platens, the path of the worksheets and transfer sheets is a curved path around the platen. When the transfer sheets are checked as aforesaid, and it is attempted then to advance the worksheets to bring the succeeding set of worksheet forms to interleaved manifolding relation with the fore sections of the transfer sheets, said fore sections, being curved, cooperate with the platen to bind the underlying worksheets so strongly that advance shift of the worksheets relative to the transfer sheets may not be effected so long as said binding effect prevails. One of the important objects of the present invention is to relieve or entirely remove said binding effect on the worksheets, so that the latter may be grasped at their ends and readily advanced relative to the transfer sheets thereby to interleave the transfer sheets with the succeeding set of worksheet forms or worksheet sections next to be typed.

In Fig. 2, the numeral 32 indicates an advance ing relation with the fore sections H of trans fer sheets H, as shown in Fig. 3. Thereupon,

the set 33 may be torn-01f or sheared from the continuous worksheet on weakening lines i5. Preliminary to advancing or forwardly shifting the worksheets relative to the transfer sheets at the platen from the Fig. 2 relation, the foresections i9of the transfer sheets are disposed so that the portions 3f thereof forming the advance boundaries of the apertures i8, lie substantially in a line tangent to'the platen at the point where the worksheets are to be advanced relative to the transfer sheets. The line of pull, or pullline, in advancing the worksheets relative to the transfer sheets, may be straight .up, as in Figs. 2 and 3, or, inclined either rearwardly or forwardly cross-wise of the platen 2, and the tan-= gent point on the platen may be at diflerent locationscircumferentially of its curved surface, dependent on. the direction of said pull-line.

.Said pull-line is usually straight, adjacent the advance edges of the apertures, and the transfer=sheet areas or sections 34 immediately ahead of 'the apertures lie parallel to this pull line.

When the advance ends' of the apertures reach i said tangent point the binding effect of the transfer-leaves on the worksheets is greatly relieved, as the worksheets thread through the stripper-sheets or transfer-sheets to the outside of the transfer leaves, and no substantial curved area of the transfer leaves is bound by the platen.

The checking device hereinbefore mentioned may be disposed relative to the transfer leaves I! so as to check advance shift of the transfer or carbon sheets at or after the advance boundaries or edges of the apertures reach said tangent relation. And in practice the apertures l8 are so related to the worksheet forms that manifold typing of a complete set of forms may be effected before the apertures l8 reach the typing line and before the checking device .is arrested by the platen and rear paper table. Having finished typing, whether the whole or part of the length of a set of worksheet forms, the operator advances the assembled worksheet and transfer sheets, as a unit, until the transfer sheets are checked. This may be done either by rotating the platen by its handle 3, or by pulling the assembled sheets. When checked the apertures are preferably above the typing line 3|, as shown in Figs. 2 and 3, and the subsequent pull on the worksheets should be in a direction not to causesufiicient curving around and against the platen of the worksheets and fore sections of transfer sheets ahead of the apertures l8 to restore any substantial binding effect on the worksheets. By securing the transfer sheets together, the relation of the apertures 18 of different sheets to the tangent point and line of pull is controlled.

In the Fig. 3 position the worksheets have been pulled or shifted ahead as described above, while the stripper-sheets are checked. During such shift the feed pressure rolls 4 are in their lower or releasing position, having been previously shifted by the operator.

Both the fore and aft sections of the transfer leaves have transfer material for manifolding, and the length of these sheets and disposition of transfer material thereon are such that they may be secured or attached together and also disposed relative to the worksheets with either of the ends of either transfer sheet in advance relation to its opposite end. The stippling,

Figs. 1, 5 and 8, indicates the transfer face of the sheets. Ordinarily, and as shown, the transfer material is conflned to the faces of the transfer leaves that face the platen 2, but it may be on both faces or on the front face only, though the latter are not preferred. Both the fore and aft sections of the transfer leaves being manifolding sections, not only do these leaves provide a much greater length of transfer material for the stripper withoutrequiring any increase in the length of the stripper leaves, but the leaves of the stripper may be confined to ordinary carbon or transfer leaf material such as the thin. carbon paper of commerce, so that practically the full lengthof the stripper is of manifolding material usable for copyingimprint of typing. v

By means of a stripper-sheet having the transfer material at each side, fore and aft of the apertures, it will be perceived that either the section of stripper in advance of where the worksheet threads through the aperture or the section 4 inthe rear thereof, may be disposed in manifolding relation to the worksheet, as selected, or when the advance transfer section becomes depleted. The provision of attaching the checking device to the stripper-sheets I], either fore or aft of the edges of the apertures 3, enables the stripper to be shifted end for end so that either section of the stripper-sheets may be interleaved with the worksheets, as shown, for instance, in Figs. 1, 2 and 3, the other section of the stripper taking up position outside and above the worksheets, as also illustrated in the same figures. Thus, means is provided cooperable for attaching the stripper-sheets to the stripper in either of two positions, in one of which it is in reverse position relative to its other position, and in each of such positions, the fore and aft transfer sections respectively will lie at opposite sides of a worksheet threading through the apertures. Furthermore, by disposing the aperture centrally of the stripper-sheets, the checking device may be located at a predetermined distance from the advance edge of the aperture in either the direct or reversed position of the stripper. And it will be observed that in either the direct or reversed relation of the stripper-sheets, the position of the apertures therein is controlled by the checking device in its relation relative to the tangentpoint and the pull-line hereinbefore referred to. Whereas in this description, the sections I9 have in the main been termed the fore or advance sections, and the sections 20, the aft or rear sections, it is to be understood that these terms relate to the relative disposition of said sections as assembled for operation in the typewriting machine, or in the supply device, and that either section may be related as an advance section,

' the other section thus becoming related as the rear section.

In case of contemplated wear on the fore and aft edges of the apertures i8, a wear-protective layer 35 may be applied close to' the fore and aft bounding margins .of these apertures, and on the face opposite the-transfer face. This layer 35 may be of very thin, flexible paper pasted to the sheets I! and lying close to and preferably flush with the said fore and aft edges, as indicated in Fig. 7. In Fig. '7 it is observed that the thickness of the transfer sheet and of the wear-protective layer thereon, has been exaggerated for the purpose of clearer disclosure.

It will be understood that other forms of stripper embodying the general principle described herein are within the purview of this invention.

For instance, instead of providing fore and aft sections of the stripper-sheet as an integral sheet, they may be fabricated from.whollyv separate sheets, as in Fig. 8, where the numeral, 36 indicates a separate and individual transfer sheet attached to'the equally separate and individual transfer sheet or section 31, by short strips of thin, flexible paper 38, the strips 38 being pasted to the back of the

respective sections

36 and 31,

and holding the sheets or sections. 38 and 31 in relation to provide the space 39. therebetween, which space corresponds and'operates similarly to the apertures IS in the form previously described.

In the embodiment illustrated in Fig. '7, the

wear-reducing layer 35 is illustrated as having an opening and a continuous -border around said opening. In Fig. 8, a similarly shaped wear-protective layer may be employed to attach the fore and

aft transfer sections

36 and 31 together.

While in the description, the transfer sheets referred to are ordinarily of paper coated with carbon transfer material, it is to be understood that the sheet material may be other than paper and the transfer material thereon may be such as desired which is capable of manifolding imprint by typing, as usual in typewriting machines.

It will be further perceived that the strippersheets of this invention may be substituted for the ordinary carbon sheets which are fastened to the shiftable carbon holder, as described in said Wernery and Smith Patent No. 1,132,055, and

that upon said substitution, the typewriting machine of the Wernery and Smith patent, and other similar machines, may be operated as describedin said patent, including the'operation of lifting the platen to straighten out the worksheets and carbon leaves, -or the Wernery and Smith machine may be operated and-relative shift between the carbons and worksheets effected without lifting said platen.

The numerals 40 indicate transfer sheets according to the present invention, butsomewhat longer than the transfer sheets shown" in Fig. 5,

in order that they may be associated with the reciprocally shiftable, carbon holder All of said Wernery and Smith machine.

Referring to Figs. l5, l6, l7 and 18, it will be understood that the parts of machine illustrated in these figures represent the same parts of, the machine in said Wernery and Smith patent. Reference is made to said Wernery and Smith patent for a full description of such machine, it

being felt that it is unnecessary to embody theentire machine herein. It may be noted, however, that in order to provide for adjustment of the point at which the carbon holder 4! is stopped in its forward reciprocal'movementin the Wernery and Smith machine, the upstanding pin abutment or stop member 42 (Fig. 1 6) is provided and is secured by an easily manipulated pin 43, the pin 43 being adjustable back andforth todifferentpositions in the slot 44 in the frame member 45 of the machine. It will be perceived that by adjusting the position of the abutment 42, the position at which the holder 4! is arrested on its forward movement may be selectively changed. In Fig. 17 the holder is shown in position against the abutment 42. Any satisfactory adjustment abutment or stopper may be used. I v

In the long transfer sheets 40, which preferably have straight side margins, as indicated at 46, apertures 47 are provided which are similar to and have a similar purpose as the apertures l8 in the transfer sheets i! heretofore described.

Theapertures 41 in, the two transfer sheets are in superposed registry with each other. Another set of apertures 48 disposed rearwardly of the apertures 41 may also be provided, the apertures Fig. 16 represents the position of the holder and the transfer sheets and associated worksheets in position ready for typing at the beginning of a set of worksheets, the previously typewritten set haidng been shifted or stripped relative to the transfer sheets and tornoif or parted onthe knife blade 49, as indicated in dotted lines in Fig. 16. In Fig. 1'7 the associated worksheets and transfer sheets have been shifted forwardly asa unit, typing of the advance set of forms having been finished, and it will be seen that the apertures 41 in the transfer sheets occupy a position tangent to the pull-line as hereinbefore described. In the Fig. 17 position, the advance ends of the worksheets may be grasped without gripping the transfer sheets, and shifted forwardly relative to and while the transfer sheets are at rest, these latter being prevented from forward movement by the stop 42. During this relative shifting movement, the feed rolls 50 of the Wernery and Smith machine should be in shifted position so as not to clamp the worksheets against the platen. Thus the relative shift between the transfer sheets and the worksheets to effect stripping is accomplished without lifting the cylindrical platen 5| of machines of the Wernery and Smith type.

Or said platen 5| may be lifted by the mechanism provided therefor, as described in the Wernery and Smith patent, from the dotted line position indicated at to the upper full line position indicated at 5|, and thereby permit the associated worksheets and transfer sheets to straighten out, whereupon the worksheets may be advanced relative to the transfer sheets to bring the next set of worksheet forms into manifolding relation with the transfer sheets, or the transfer sheets may be shifted rearwardly by the handle 52a (shown in dotted lines) which may be fastened to the transfer sheet holder 4| for that purpose.

Numeral 53 indicates a spring motor and drum serving to coil a belt or cord 54 running over a pulley 5.5, the other end of the belt I54 being attached to the holder 4| for retracting the holder in an automatic manner. It is to be understood that the automatically retracting operation may be dispensed with, as'for instance, by removing the belt 54 from attachment to the holder 4|.

Referring to Fig. 14, in addition to the apertures l8, as shown in Fig. 5, one of the transfer sheets I! is provided with an additional worksheet-threading aperture 58. The arrangement in Fig. 14 is merely exemplary of a different disposition of the apertures from that illlustrated in Fig. '5. In Fig. 14, the underlying worksheet may be threaded through the apertures-i8 in both the upper and lower transfer sheets i1, and the next adjacent worksheet threaded through the. aperture 56- in the outer transfer sheet I1 only. The position of, the checking device 25 relative to the apertures l8 and 56, in the arrangement of Fig. 14, is preferably such that the aft set of apertures l8 may arrive at the point on the platen tangent to the pull-line when the checking device is in arrested position between the platen 2 and the rear paper table i I.

In utilizing the invention in the Wernery and Smith type of machine, when the foremost sections 80 of the transfer sheets 40 ahead of the advance apertures 41 have become depleted of transfer material, said foremost sections 60 may be torn off or otherwise parted transversely through the apertures 41, as on the line 6|, thus eliminating the used sections 40. There-. upon the worksheets may be threaded through apertures 48, and the sections 62 of the sheets 40 become the fore sections thereof. The slot in the frame should be long enough to permit adjustment of the arresting abutment 42 to position to'check advance of holder ll at or after the advance margins of the apertures 48 arrive at a point on the platen tangent to the pull-line, as heretofore described. It is furthermore to be understood that in the embodiment of Fig. 15 instead of employing two sets of apertures longitudinally separated, a single set may be employed centrally of the lengths of sheets 40, whereupon the transfer sheets may be reversed end for end, and either end connected to the holder 4|. Since certain changes may be made in the above construction and different embodiments of the invention could be made without departing from the scope thereof, it is intended that all matter contained in the above description orv shown in the accompanying drawings shall befolding relation to the worksheets either end 4 foremost.

2. A carbon stripper having means, including a work-sheet-threading opening in a carbon sheet of the stripper cooperable for disposing transfer material of said carbon sheet in manifolding relation to the worksheets either end foremost, and means, including a stripper-checking device, cooperable in either said relation of the transfer material.

3. A carbon stripper having a plurality of relatively superposed carbon sheets, means, including a worksheet-threading opening in each of a plurality of said carbon sheets cooperable for disposing transfer material of said carbon sheets in operative manifolding relation to the worksheets either end foremost; and means, securing said carbon sheets together, controlling the position of said openings in different sheets relative to each other.

4. A carbon stripper having a plurality of relatively superposed carbon sheets, means, including a worksheet-threading opening in each of a plurality of said carbon sheets cooperable for disposing transfer material of said carbon sheets.

in operative manifolding relation to the worksheets either end foremost, means, securing said carbon sheets together, controlling the position of said openings in different sheets relative to each other, and means, including a stripperchecking device, cooperable in either said relation of the transfer material.

5. A supply device for the purpose described including, in combination, a plurality of continuous worksheets in superposed relation to each other, a plurality of relatively superposed carbon sheets each having an opening through the sheet and transfer material fore and. aft of said opening, one or more of said worksheets passing through an opening in a carbon sheet, the fore transfer sections of said carbon sheets facing one side of the worksheet or sheets passing through said opening and the aft transfer sections facing the opposite side thereof, and means securing said carbon sheets together controlling the relative position between said openings of different said carbon sheets.

6. A supply device for the purpose described including, in combination, a plurality of continuous worksheets in superposed relation to each other, a plurality of relatively superposed, carbon sheets each having an opening through the sheet and transfer material fore and aft of said opening, one or more of said worksheets passing through an opening in a carbon sheet,

the fore transfer sections of said carbon sheets facing one side of the worksheet or sheets passing through said opening and the aft transfer sections facing the opposite side thereof, means securing said carbon sheets together controlling the relative position between said openings of 'diiierent said. carbon sheets, and a stripperchecking device connected to said carbon sheets.

7. A stripper for the purpose described having,

in combination, a stripper-sheet, a stripperchecking device, and means cooperable for threading a worksheet through said strippersheet and selectively disposing either the section of stripper-sheet in advance of where said worksheet isthreaded or the section in rear thereof in manifolding relation to said worksheet, each said section having transfer material for manifolding.

8. A stripper for the purpose described having an opening for passage of a worksheet through the stripper, and having transfer material fore and aft of said opening, said stripper being,reversible end-for-end and cooperable in either reversed position for manifolding cooperation with aworksheet passing through said opening, a checking device, and means cooperable for connecting said checking device to the stripperv and selectivelydisposing the checking device in checking relation in either of the reversedpositions of said stripper.

9. A stripper for the purpose described, having, in combination, an integral stripper-sheet provided with an aperture for threading a worksheet through said stripper sheet, the sections of said stripper sheet fore and aft of said aperture having transfer material for maniiolding.

10. A stripper for the purpose described having, in combination, an integral stripper-sheet provided with an aperture for threading a worksheet .through said sheet, the sections of said sheet fore and aft of said aperture having transfer material for manifolding, and means cooperable for attaching said stripper sheet to the stripper in either of two positions, in one of which it is in reversed position, end-for-end, relative to its other position.

11. A stripper for the purpose described having, in combination, an integral stripper-sheetv provided with an aperture for threadinga worksheet through said sheet, 'the sections of said sheet fore and aft of said aperture having provided with an aperture for threading a worka sheet through said sheet, the sections of said sheet fore and aft of said aperture having transfer material for manifolding, a checking device, and means cooperable for attaching said stripper-sheet to said checking device either fore or aft of said aperture.

13. A stripper for the purpose described having, in combination, a plurality of relatively superposed stripper-sheets each provided with an aperture for threading a worksheet -the're-' through and each having transfer material fore and aft of said aperture therein, and means controlling the relation of said stripper-sheets to each other.

14. A stripper for the purpose described having, in combination, a; plurality of relatively superposed, integral carbon sheets, having apertures therein for threading worksheets therethrough, means securing said carbon sheets together, and a checking device attached to said stripper and disposed at a distance from said apertures.

15. A stripper for the purpose described having, in combination, a checking-device and a plurality of relatively superposed carbon sheets each having a worksheetthreading aperture through the carbon material so as to bound the apertures fore and aft thereof by carbon material.

16. A stripper for the purpose described having, in combination, a checking-device, and a plurality of relatively superposed carbon sheets each having a worksheet-threading aperture through the carbon material so as to bound the aperture fore and aft thereof by carbon material, and means selective for connecting said checking-device to said stripper and disposing said checking. device either fore or aft of said apertures.

17. A stripper for typewriting machines having, in combination, a plurality of relatively superposed carbon sheets, each; having an aperture for threading a worksheet through the carbon sheet, and transfer material fore and aft of said aperture, shiftable to different positions around the roller platen of the machine and t0 position in which the advance boundaries of the apertures lie parallel to the straight pull-line of worksheet sections ahead of Said apertures, and a checking-device cooperable to check advance shift of said apertured carbon sheets with said boundaries in said parallel relation to said pullline.

18. A stripper for typewriting machines hav- 'ing, in combination, a plurality of relatively superposed carbon sheets each having an aperture for threading a worksheet through the carbon sheet, and transfer material fore and aft of said aperture, shiftable to difierent positions around the roller platen of the machine and to position in which the advance boundaries of the apertures lie parallel to the straight pull-line of worksheet sections ahead of said apertures,

a checking-device cooperable to check advance shift of said apertured carbon sheets with said advance boundaries in said parallel relation to said pull-line, and means controlling the relation of said stripper-sheets to each other.

19. A stripper for typewriting machines having, in combination, a plurality of relatively superposed carbon sheets, each having an aperture for threading a worksheet through the carbon sheet, and transfer material fore and aft of said aperture, shiftable to difierent positions around the roller platen of the machine and to position in which the advance boundaries of the apertures lie in a tangent to'said platen at the point where the worksheets are to be ad'- vanced relative to said carbon sheets, and means attaching said apertured carbon sheets together and controlling the position of the apertures of different sheets relative to each other and said tangent point.

20. A stripper for typewriting machines having, in combination, a plurality of relatively superposed carbon sheets, each having an aperture for threading a worksheet through the car- I bon sheet, transfer material fore and aft of said aperture, .shiftable to different positions around the roller platen of the machine and to position in which the advance boundaries of the apertures lie in a tangent to said platen at the point where the worksheets are to be advanced relative to said carbon sheets, means attaching said apertured carbon sheets together and controlling the position of the apertures of different sheets relative to each other and said tangent point, and a checking-device cooperable to check advance shift of said carbon sheets at or after said advance boundaries reach said tangent relation.

21. A stripper for typewriting machines having, in combination, a plurality of relatively superposed carbon sheets each having an aperture for threading a worksheet through the carbon sheet and transfer sections fore and aft of said aperture, each of area suflicient for manifolding cooperation with worksheet sections, ahead of said apertures, shiftable to different positions around the roller platen of the machine and to position in which the advance boundaries of said apertures lie parallel to the straight pullline of worksheet sections .ahead of said apertures, a checking device cooperable to check advance shift of said apertured carbon sheets with said advance boundaries in said parallel relation to said pull-line, and means cooperable for attaching said carbon sheets to said checking device and selectively disposing either the fore or aft edges of said apertures in advance position.

22. A stripper for typewriting machines having, in combination, a plurality of relatively superposed carbon sheets each having an aperture for threading a worksheet through the carbon sheet and transfer sections fore'and aft of said aperture, each of area suficient for manifolding cooperation with worksheet sections, ahead of said apertures, shiftable to different positions around the roller platen of the machine and to position in which the advance boundaries of said apertures lie in a tangent to saidplaten at the point where the Worksheets are to be advanced relative to the carbon sheets, a checking device cooperable to check advance shift of said apertured carbon sheets after said advance boundaries reach said tangent relation, and means cooperable for attaching said carbon sheets to said checking device and selectively disposing either of said transfer sections in advance position relative to the other,

23. A stripper for the purpose described having, in combination, a pack of manifolding sheets, each having a worksheet threading aperture intermediate its ends; each section fore and aft of, and from close to the edge of, said aperture being a transfer section, the opposite transverse bounding margins of said apertures having a layer of relatively thin, flexible material for reducing wear on the edges of the apertures, and a checking device secured on said pack and-disposed remote from said apertures.

24. A stripper for the purpose described having, in combination, a pack of manifolding sheets, each having a worksheet threading aperture intermediate its ends, each section fore and aft and from close to the edge of said aperture being a transfer section, the opposite transverse bounding margins of said apertures having a layer of relatively thin, flexible material for reducing wear on the edges of the apertures,and a checki'ng device secured on said pack and disposed remote from said apertures, said apertures being relatively wide longitudinally of the sheets for free and unobstructed simultaneous passage of a relatively largenumber of worksheets through each apertured sheet.

25. A stripper for the purpose described having, in combination, a pack of manifolding sheets, each having a worksheet threading aperture intermediate its ends, each section fore and aft of and from close to the edge of said aperture being a transfer section, the opposite transverse bounding margins, of said apertures having a layer of relatively thin, flexible material for reducing wear on the edges of the apertures, and a checking device secured on said pack and disposed remote from said apertures, the length of said manifolding sheets being sufiicient to provide a foldable, transverse, securing extension at each end of the sheets in addition to the transfer sections aforesaid.

26. A stripper for the purpose described having, in combination, a pack of manifolding sheets each having a worksheet threading aperture intermediate its ends, each section fore and aft of and from close to the edge of said aperture being a transfer section, the opposite transverse bounding margins of said apertures having a layer of relatively thin, flexible material for reducing-wear on the edges of the apertures, a checking device secured on said pack and disposed remote from said apertures, the length of said manifolding sheets being sufficient to provide a foldable, transverse, securing extension at each end of the sheets in addition to the transfer sections aforesaid, said apertures being located equidistant from said foldable extensions, the folded extensions being in superposed contiguous relation to each other, and said checking device comprising a sheet-bracing bar detachably afllxed to said folded extensions at one .end of the pack, and a worksheet-supporting loop underlying said. pack.

27. A supply device for use in typewriting machines and the like having, in combination, a plurality of relatively superposed, continuous rworksheets, a stripper having a plurality of relatively superposed carbon sheets with apertures through the carbon sheets, and carbon,

material fore and aft of theapertures, underlying worksheets lying threaded through said apertures and in interleaved, manifolding relation with the fore-sections of said carbon sheets and all lying outside of said carbon sheets opposite the aft-sections thereof, said carbon sheets firmly secured together against relative longitudinal movement at a point aft of said apertures so as to maintain said apertures at predetermined distances from said point where secured, the length of and disposition of carbon material on said carbon sheets being such that they may be secured together and disposed rela-