US1731689A - Typewriting machine - Google Patents

Description

med Jan. 21,'"1927 s Isheets-sheen 1.

;15,1929. J.TOGGENBURGER TYPEWRITING MACHINE AFiled Jan. 21. 1927 5 sheets-sheet 2 MW il Z7 /m/enfar:

- Patented Ouct. 15, 1929 rumen STATES PATENT; @F1-Ef `JOHN TOGGENBURGER, F NEW `IVIIILFOIRJ), NEW JERSEY, ASSIGNOR T0 'UNDERWOOD ELLIOTT FISHER COMPANY, OF NEW' YORK, N. Y., A CORPQRATION OF DELAWARE TYPEWBITING MACHINEl l ji Application -filed January 21., Serial 170.162,420.

vThis invention relates to typewriting machines, in which Webs, usually fan-folded, are typed. 'These'webs are printed with a succession of forms'on which the typing is done, and it is customary to employ manifolding material in the form of sheets of carbon interleaved between the plies of the Web.

After the plies of one Iorm have been typed,

the carbons are stripped therefrom 'and shifted tothe succeeding form, the 'web being held stationary during such stripping.` When in position to betyped upon, the web 1s looped around the platen, and it is usually impossible to shift the carbons simultaneously While the web is thus looped around the platen, due to the snubbing effect of one carbon upon another, which prevents such shifting. Without having recourse the web, the snubbing effect may be avoided by stripping the carbons seriatim. beginning;V

l.gripped in the usual blades, which are mounted for stripping purposes on strippers individuallymovable, and guided at their ends for the usual movement toward and away from the platen. y `,z

Among the ohjectsof the 'invention are to provide means for retracting., the carbon- Y strippers seriatim; to operate such means bv member shall proceed without reversal ofsaid movement y in recurring carbon-stripping .v

an uninterrupted and 4facile sweep orv the hand; tovprovide-a stripper-retracting men.v ber which'wi'll have a smooth even movement and thereforeireactfvv hand; to provide in stripping the carbons evenly upon theoperators phases, as distinguished, for example,lfrom 'a stripper-retracting member having a reciprocating movement; and to provide means on each stripper 'whereby the order and extent of the retraction of the strippers are auto-" matically determined, said last-mentioned means operating to the effect that the rearmost carbon-stripper will be retracted first` then the next one, and the next one, and so on until all the strippers have been retracted.

to the usual expedient of displacing, the platen to straighten the loop of I In'v conjunction with the last-mentioned means, the provision of astripper-retractine, member operable in recurring; carbon-stripping phases makes it possible to retract the maximum number of strippers ever employed, `by the same mechanism that is used to retract the minimum number of strippers. In other Words, aside from the number of strippers employed, the mechanism for retracting, say elght strippers, would b e, as will appear, substantially the sameas the mechanism for retracting, saythree or four strippers. The uniformity of the stripper-retracting` mechamsm, irrespective of the number of strippers used, conduces to economy in manufacturing c ost because itis not necessary to varv the design of said mechanism according to the number of strlppers used. Said mechanism being uniform, there is, aside, from an increase in the number of strippers used and a possible extension of. the ,guides of the same, no increase 1n the weight of said mechanism as the number of strippers used is increased. The advantage of this feature is particularly obvious m the preferred form of the invention Where the whole mechanism is to be mounted upon and Wholly supported by the typewritercarriage.

In carrying out the invention, a crank or its equivalent, rotatable by hand, is provided for operating the stripper-retracting mechamsm. Betorethe carbons may be stripped 1t lsnecessary to grip and hold the web and cast. off the usual feed-rolls, and another ob3ect of the invention is to provide means lwhereby thisu is done simultaneously and automatically'during an initial portion of the crank-movement as the crank is started to operate the stripper-retracting member.

The Web-gripping means include a clamp,

whereby the leading edge of the web may bel. clamped in :a position gaged by means of the stop usually/'provided for this purpose. To accommodate diiferent forms, the position of the stop and clamp is shiftable, and the means for automatically operating the clamp are devised so as to be operative for any position of the clamp. v

A stripper-retracting member, which shall operate in ocurring carbon-retracting phases, is preferably in the form of an endless belt, which may be geared to the aforesaid operating crank. Thebelt is run over pulleys that are so'spaced and located that one side of the belt runs substantially along the path in which the carbon-'strippers move. For retracting the carbon-strippers the belt may have one or more tappets, which, in the crank-operated movement of the belt, will engage said strippers. The carbon-strippers are arranged at the intake side of the platen and normally close to one another. In the process of typing, and as the web is fed around the platen, all the strippers are simultaneously drawn toward the platen to an extent depending upon the length of form typed. In retracting the strippers by means ofthe aforesaid endless belt and its tappets, the stripper farthest from' the platen is to be retracted first, as already mentioned. In the preferred form of means for accomplish-v ing this, there is provided on each carbonstripper a spring-pressed dog having a portion extending into the path of the endless belt-tappets. The dog may be proportioned and mounted so that it is pushed aside and displaced from the path of the tappets as a tappet encounters it.. Beginning with the dog on the stripper nearest the platen all the dogs are thus displaced by the transit of a tappet, luntil said tappet encounters the dog on the `stripper to be retracted, in which case the displacement may be prevented by means o'f an interponent which has been caused to shift into position to lock said dog.

There is therefore a spring-pressed interponent on each carbon-stripper. and the position of said interponent is controlled by means of the carbon-stripper that, in the order of retraction, is ahead of it, to the effect that when said stripper ahead of it is retracted, said spring-pressed interponent will automaticallyv move into position to prevent the displacement of its corresponding dog. A succeeding transit of the tappet of the endless belt Will then be effective by means of the locked dog to retract the lastmentioned stripper'. Then said last-mentioned stripper is brought up to the previously-retracted stripper, theeffective interponent encounters said previously-retracted stripper' again and is thereby displaced to the effect that the dog which it has held is released. 'The dog thus released is displaced as the tappct continues its transit. Each dog is spring-pressed so that it snaps'back into normal position following displacement by a tappet. All the interponents on the carbon-strippers are thus controlled except the interponent which is on the rearmost stripper, said rearmost stripper being the one that is always farthest from the platen. In order that the interponent on said farthermost stripper may be Withdrawn when said farthermost stripper has been fully retracted.l

there may be provided a stationary stop which 1s encountered by the interponent on t-he farthermost stripper, when said stripper reaches the limit of its retraction. In serving to Withdraw the interponent, the stationary stop serves the same purpose as a stripper ahead of the farthermost stripper would serve. Before retraction of the strippers, the interponent of the farthermost stripper is naturally in effective position because there is no stripper ahead of it.

In the illustrated form 4of the invention there are shown four carbon-strippers, and the endless belt that retracts said strippers has two tappets thereon. In this case, to retract the four strippers, each tappet must pass along the carbon-stripping range two times. The driving pulley, over which the belt is run, and the gearing from said pulley to the. operating crank, are so proportioned that in one revolution of the operating crank a double. transit of each tappet is effected. Thus there are four carbon-stripping phases of the belt-movement for each revolution of the crank. Any one of various well-known means may be provided for the purpose of enabling an operator to gage one revolution of the operating crank.

In the gearing connecting the operating,

crank to the endless belt there is included a shaft, on which the operating crank is mount' ed, and there may be conveniently fastened to said shaft a single cam which, by suitable connections, is effective to operate the Webgripping means and the means Afor casting off the feed-rolls. The invention is shown illnstratively applied to a typewriter inwhich the platen 'is movable for case-shifting purposes. the platen being mounted .for this pnrpose in the usual platen-frame thatis shiftable up and down in a main carriage-frame. For the purpose of obtaining rugged construction, the stripper-retracting 1ne\chanis1n including the operating crank, its shaft, anc. the aforesaid cam, is mounted on the main frame ofsthe carriage.4 The Web-gripping means and feed-rolls are necessarily mounted on the movable platen-shifting frame. aforesaid connections whereby said cam may operate the web-gripping means and the means for casting off the feed-rolls may be so devised. as will be shown, as to be operative irrespective of Whether the platenframe is in an upper-rase or a lower-case po sition.

A further feature of the invention is the provision of novel means and the arrangement thereof for guiding the carbon-strip pers to'and from the platen. The difficulty of sufiiciently spreading the points ofbearing for each stripper, when the strippers are close to one another, is avoided by said novel meansI and their arrangement. According to said arrangement, as will be shown, there is at each end of thestripper a pair of rolls spread The l apart su'ieiently to prevent tilting and skewing of the stripper as it runs along its guides, and the spread `of said rolls is not limited by the closeness of the strippers to one another.

This invention is in the nature of improvements upon the devices disclosed in the application of B. C. Stickney, No. 137,229, tiled Sept. 23, 1926.

Other features and after appear.

In the accompanying drawings,

Figure 1 is ar sectional Iside elevation, showing the mechanism in -which the invention is embodied, said mechanism being ap plied to the carriage of an Underwood typewriter.

Figure 2 is a side elevation, showing the means whereby the platen feed-rolls may automatically be cast oft' through an initial movement of the operating crank of the mechamsm.

Figure 3 is a fragmentary view, looking edgewise of one of the strippers` showing dethe displaceable dog on said stripadvantages will hereintails of y pers and how said dog is mounted on the carbon-stripper in relation` to the stripper-retracting belt and its tappets.

Figure 4 is a perspective view, showing particularly `the means for clamping a crossbar thatsupports the web-gripping and -gaging means, to the usual table arranged at the delivery side of the platen, said cross-bar being shiftable along said table.

Figure 5 is a perspective view, showing the construction of the framework or brackets in which the mechanism of the ir. ."ention is supported. This figure also shows the manner of attaching said frame-:vork .or brackets to a main frame of the typewriter-carriage.

Figure 6 is a top plan View of the' mechanism in which the invention is embodied, and shows particularly the relative positions of the diferent parts of said mechanism.

Figure 7 is a side elevation, showing how the means tor automatically controlling the web-clamping device and the feed-rolls may be constructed, so that said control may be effected irrespective ot whether the platen is in upper or lower case position.

Figure 8 is a View from the rear of the typewriter, and shows some of the carbon-strippers which run on inclined guides. This view shows particularly the manner of operation of the displaceable dogs and the several interponents which control said dogs.

Figure 9v is a side elevation, showing how the feed-rolls may be cast oil', and the web may be gripped by an initial movement'o the oper-,ating crank.

Figure 10 is a diagrammatic side elevation, showing the relative positions ot dilerent parts of the carbon-stripping train at the moment when the stripper farthermost from the platen has just been fully retracted.

In the typewriting machine to which the invention is illustratively applied, types 15 strike against the front ot' a platen 16 mounted on an axle 17 journaled in a platen-frame having ends 18. Said ends are joined to the usual rear paper-shelf 19, which inclines downwardlyand forwardly, and curves un; der and up in front of the pla-ten. The platen-frame is usually shittable up and down relatively to a main frame 2() of the letterfeeding carriage generally indicated by the number 25. Said carriage travels on the usual guide-rails, of which only the rear one 21 is shown in Figure 1. A multiple-ply web 22 is led from a source ot supply over a crossmember 23 which forms part of the mechanism in which, the invention is embodied. Said cross-member 23 is so positioned that the web, after passing thereover, is directed toward the platen in an inclined path that conforms to the slope and position of the paper-shelf 19, as sho vn in Figure 1.

The multijile-plyweb may include single webs superposed one over the other, or the web may be of the fan-fold type employed with the well-known Underwood methodv of slitting the folds of the web prior to feeding the web around the platen.

Before the web is led around the platen, it is loaded, in the manner "well known in the art, by inserting carbon-sheets 24 between the plies of the web. The leading front edges ,ot said carbon-sheets are so positioned that they are somewhat in advance of the first.

printing line of the irstform of the web, which is usually printedV with a succession of forms according to which the typing upon the web is done. The leading portion of each form usually has a substantial heading or margin above the first typing line. The rear ends of the carbon-sheets are fastened inthe usual manner to carbon-holding blades 27. Said blades are ot such length that one end of each blade projects beyond the side edge of the web from between the corresponding plies. and the projecting ends extend alternately from opposite side edges of the web, as shown in Figure 6. The blades are, at these projecting ends, removably attached, by means not shown, to heads 28, which, in turn, are. secured to individually-movable carboncarriers or strippers 29. For guiding the strippers 29 along a ath conforming to the direction inl which t e portion of the web between the cross-member 23 and the platen is extended, there is provided a pair of channeled guide-rails 31 along which opposite.

end-portions ot each stripper are guided.4

A feat-ure of the' invention is the novel manner of guiding the end-portions ot the strippers along said rails so that the extremities of the bearing of each end-portion along the adjacent rail are separated suiciently to prevent undue tilting or skewing of the strippers. The end-portions are accordingly made to bear upon their respective rails or isa the strippers. The transverse offset is to effect'the desired separation of bearing-points,

while the lengthwise offset makes it possible to nest the several pairs of bearing-points so that the usual close grouping of the strippers is possible; The preferred means and the ar? rangement thereof, whereby this is accomplished, are best shown in Figures 6 and 8.

Each end-portion of a stripper has, prefera- `spacing between the rolls 33 and 34.

bly within the body of the stripper, an upturned ear 32 upon which is pivoted a bearing-roll 33 that engages an' inner channel 30 of the adjoining guide-rail 31. Another bearing-roll 34 may be substantially spaced from said roll 33, by having said other roll engage a channel on the side of the rail opposits to the side engaged by the roll 33, said roll 34 being for this purpose pvoted upon a bent-up extension 35 of the end-portion of the carbon stripper. Said bent-up extension projects sufliciently forward from the bodyof thestripper to effect the desired substantliil s shown in Figure 6, the up-turned extensions 35 are so formed that the stripper end-por tions, notwithstanding said extensions, may

benested one within the other when the carbon-strippers are grouped closely.' together. Although the guide-rails 31" are preferably channeled as shown in Figures 6 and 8, it is evident that such channeling is not necessary to guide the end-portions of the strippers from opposite sides of said rails. For example, there could be lused a pair of rolls on each side of the rail, one running along the top ofthe rail and one along the bottom of the rail. It is also evident that slidingbearings instead of roller-bearings may be provided. Such sliding bearings, if spread sufflciently apart, as provided for in this feature of the invention, may be just as satisfactory` as roller-bearings.

To prevent undue displacement of the strippers through the influence of gravity'or otherwise there may be provided frictional holding means at each end-portion thereof, said holding means being preferably in the form of a resilient spring 38, which is fas# tened to the under side of each end-portion. Said spring presses upon the under side of the adjacent guide-rail, as shown in Figure 8,

to effect the. desired friction to prevent said ldisplacement.- To brace the guide-rails they are joined. at their upper ends to the crosslmember 23 by means of splicing members 39, which may be bent .up from said crossmember. lSaid cross-1nember, to facilitate -the running of the web over it,` has vthe curved form shown in Figure 1. "Between the splicing members 39 and the upper-ends of the Vguide-rails 31 there is held a downwardly and rearwardly projecting spur 40, the function of which will presently be described.

In the illustrated embodiment of the invention, the entire carbon-retracting mechanism is supported by the t pewriter-carriage 25. To support the mec anism as rigidly as possible, it is (principally supported by the frame 20 ofsai carriage. There are accordingly fastened to said frame a pair of mechanism-supporting brackets .which may be designated as a left-hand bracket 41 and a right-hand bracket 42. Figure 5 shows a perspective view of said brackets and the manner of attaching them to the frame S2() of the carriage. To an upstanding portion 43 of the left-hand bracket 41, the lower end of the left guide-rail is fastened. To a similar portion 44 of the right bracket 43 the lower end of the other guide-rail is fastened.

In accordance with the purpose of the in!r vention the strippers 29 are retracted. by means including a belt 45. To enable said belt to retract the carbon-strippers it is provided with tappets 46, andjis so guided that it runs substantially adjacent to and along the path in which the car-I bon-strippers are guided. To thus guide l, over a lower pulley 37 land an upper pulley 47. Said upper pulley is mountedto freely rotate on a shaft 48 which is fixedly held at its ends in the aforesaid spurs 40 at the upper ends of the strip er guide-rails. The lower pulley 37 is keye to a rotatable shaft 49, one end ofwhich is journaled in a rearwardly-extending spur 50 of the bracket journaled in a similar' 41, the other end beine' spur 51 of the bracket 42.

. In the illustrated embodiment of the in- Y, y' vention, four carbon-strippers 29 are, shown, 'and for retracting said four strippers' the-v belt 45 is provided with two yof the aforesaid tappets 46. As the strippers are to be re'' tracted seriatim, it is evident that each ofl the two'tappets must pass twice along the carbon-stripping range in order that the four strippers may be retracted. The belt is run in the direction indicated by the arrows in Figure l, and the means wherebysaid tap-l lpreferred that one revolution of the crank' shall cause the belt 45 to be run to an extent sufficient to effect the seriatim retraction of the number of carbon-strippers provided, which, in this case, is four. To accomplish this, each tappet, as already` stated, passes along the carbon-stripping range twice, and the gearing between-the belt 45 and said crank is proportioned accordingly. As best shown in Figure. 1, said gearing includes,

90 the belt it is run, as shown. in Figure besides the lower pulleyv37 and shaft 49, a shaft 56 to which the crank 55 is keyed. For running the belt 45 to theV required extent,

and in vorder that the diameter of said pulley 37 shall notbe unduly large, it is necessary that said pulley and its shaft 49 make a comparatively large number of turns for each revolution of the crank 55. -'To avoid awkward proportions of the gearing between the crank-shaft 56 and said lshaft 49, an intermediate shaft 58 is provided. Said intermediate shaft 58 is driven by the crank-shaft 56 by means of a belt 59, which is run over a pulley 60 keyed to said intermediate shaft 58 and over a pulley 61 keyed to the crank; shaft 56. The intermediate shaft 58`in turn drives the lower pulley-shaft 49 by means of a gear 63y keyed to said intermediate shaft, said gear meshing with a pinion 64 on said lower pulley-shaft 49.

The intermediate shaft 58 is journaled in the upstanding portion 43 and in an upstanding side 65 of the left bracket 41, and the bearing-holes for said intermediate shaftvare indicated in Figure 5 by the number 66. One

end of the crank-shaft 56 is also journaled in said side 65,-.the other end being journaled in an opposite leg 67 of said bracket 41. To

\ prevent the belt 45 from being run reversely,

there may be lprovided a ratchetand-pawl' arrangement, which includes a ratchet-wheel 68v that may be fastened to the belt-driving shaft '.49 and may be engaged by a resilient spring. 69 that serves .as a pawl for checking reverse rotation of said ratchet-Wheel, and said beltedrivin g shaft on .which it is mounted. Said spring-pawl may be fastened, as shown in Figures 1 and 6, to a projection 71 extendingV from the side 65 of the bracket 41. For retaining the shaft 49 lengthwise, the outer side of Jthe pinion 64 at one end of the shaft may bear against the yleft bracket 41, and a collar 7 2, fastened to said shaft at its other4 end, may bear against the right bracket 42 as shown in'Figure 6, The crank-'shaft '5.5 may vbe retained lengthwisehy reason. of a'hub 73 of thecrank 55 bearing against the side 65 of the bracket 41 and a hub 74 of the crank-shaft pulley 61 bearing against the opposite surface of said side 65'. v

A suitable device may he provided yto enable l an operator to gage one revolution of the crank 55. One form of such device is bestshownin. Figure-.1 and,v includes a block7 6 loosel pivoted upon an arm 77 of the vcrank 55. i hefblockgfrformed asfshown inl said Figure 11',f'isipli"e'ssf5d, against a sto -pin 78 by ai? i ichjfisfastened to t eihuhf-73 'of thecrank, the. blockV 7 6 being below saidhub. l

' PI'QGlSiIIg from the crank-side'of the bracket sp1'ingf79,

1141iaretwofprojections, 80 and 81 which 'are disposed relatively tocthevblock 76, as shown.

i in Figure '1, and are substantially in the path,l

of said'block as it isrevolved with the crank. The operation of this revolution-gauging de-i .close-together, as snown inFigure 1. enabling the tappets 46 on the belt 45 to envice is as. follows: In the normal position f the crank 55, as shown in Figure 1, the spring 79 presses the block y7 6 against the stop 78 so 'that as a revolution of the crank 55 is started a corner 83 of said block is in position to lead it over. the projection 81. Near the end of one revolution of the crank, the block 76 is again l -crank 55 has made one revolution. Just as the corner 83 of the block encounters said projection 81, the block may also escape from the projection and reassume itsnormal position, as shown in Figure 1, when one revolution of the crank is completed.

The carbon-strippers 29 advance from .a predetermined initial position toward the platen, and as they thus advance, are grou ed or gage the carbon-strippers and effect their seriatim retraction from any advanced position, means, which will now be described, are provided In effecting said seriatim retraction, the stripper farthest from the platen is the irst'to be retracted to its initial position, which may `be registered by means of a stop 85, which ma be shiftably set along one of the guide-rai s 31, las shown in'Figure 6. A tappet-to engage said farthest stripper must first pass the other strippers, and the means on said strippers, whereby a tappet engages the same, mustA permit such passage of the tappet. r The belt 45 must also be lpermitted to continue its movement after a tappet thereon Vhas retracted not only said farthest stripper but each of 'the other`r` strippers. There is' provided,'accordingly, on each stripper, a dog or interponent 86 which must be shiftably .mounted so that it may be pushed aside by a tappe't.` To this end, the dog is pivotally mounted and has portions 87 extendin into the path of the` tappets. As shown 1n Figure 8, each dog is pivoted at such a point that said portions may bepushed aside by the passage of a tappet. In its normal position, each dog is held by-mea'ns of a spring 88 against a lug 89 projecting fromv `1.1.5 the body-portion of the stripper withwhicli said dog is associated. As shown in.Figuro"" 8, the portions 87'of each dog Vare on opposite sidesy ofthe stripperret'ractlng ,beltf45i By.,4

ma be'effected.v or locking the several dogsthere is'y previded oneach stripper an vlnterp'onent 90,l

which is pivotally mounted so that it may v pper n moved into position to lock the dog. Each interponent is preferably formed as shown in Figure 8, and has a dog-locking portion 91 which may engagethe ends of the tions 87 to lock the dog.

Each interponent 90, except the one on the stripper farthest from the platen, is in such position that the associate dog is not locked thereby, and is held in such position by reason of the contiguity of the stripper,- that is, in a stripper-retracting directon, ahead of it. In order that such contiguity may cause the interponents to be disengaged from their respective dogs, there is associated with said each interponent a lever 92, by means of which the interponent is either held disengaged from its dog or is permitted to move into engagement therewith. Each lever 92 has an arm 93, by means of which a lug 89 ofthe stripper, which is immediately ahead of it, may position said lever 92 to keep the interponent disengaged from its dog. Each lever 92 is pivotally mounted on the same axis as the interponent with which it is associated, .and yieldably connected thereto by means of a spring 94. It may be noticed that the arm 93 might have been an integral part of the interponent 90. It is for the reason that the portion 91 of the interponent may escape quickly and to a sufficient extent from the dog 86 that the lever 92, of which said arm 93 forms a part' is yieldably connected to said interponent. The manner in which, by means of said yieldable connection, the interponent thus escapes from the dog will be presently described.

In any advanced position of the strippers the dog on the stripper farthest from the platen is locked by its interponent because there is no stripper ahead of it to hold said interponent disengaged from its dog. Vhen a belt-tappet 46 engages said dog on the farthest stripper, the stripper is thereby caused to be retracted until it reaches its initial position as 'determined by the stop 85. When. l it reaches said initial position, the dog thereon must be released from said interponent to permit the belt to continue its movement for retracting the other strippers. Such release of the dog on the arthermost stripper is ef- Afected by the reaction between the interponent of saidfarthermost stripper and said stop 85 as said stripper reaches-said initial position. The manner of such reaction will be apparent in Figure 8, which also shows the means by which said reaction is effected.

- Said means include a lever 95 pivoted on said f I a5 farthest stripper and having an arm 96 similar to the arms 93 of the levers 92 on the other strippers. By means of a link 97 said lever 95 is connected to an arm 98 which is yieldably connected to the interponent on said farthermost stripper inthe same manner as theV interponents on the other strippers are connected to their respective levers `92. Said" arm 98 is also of the same form as the interponent-engaging arm 98 of said levers 92.

As shown in Figure 8, a tappet having engaged the dog on the farthermost stripper, and the belt- 45 having thereby retracted said stripper to its initial position, said dog will have been released from its interponent to permit the continued movement of the belt. Said Figure 8 shows the tappet 46 in its continued movement pushing the released dog, and the belt is thereby enabled to continue its movement. The release of the dog on the farthermost stripper from its interponent takes place as the arm 96 of the lever 95 encounters the stop-85 and causes said lever to be turned. As said lever 95 is thus turned, the interponent connected vthereto is withdrawn from the dog. The stripper farthest from the platen having been retracted to its initial position,the dog on the stripper next in order of retraction will have .been locked by its interponent because there is noW` no stripper immediately ahead of it to engage the arm 93 on the lever 92 corresponding to said interponent. Therefore, in the next transit of a'tappet along the carbon-stripping range, said next stripper will be retracted as soon as the tappet engages the dog thereon. The retraction of said next stripper will continue until the namely, to withdraw the interponent from .the dog and permit the continued movement 1 Following this, the (other of the belt 45. strippers are retracted in the same manner as their respective interponents in turn becomeetective and as, in the completion of a revolution of the crank,the stripper-retracting belt 45 continues its movement. Each interponent becomes effective as it is drawn into engagement with its dog by means of a spring 99. On each stripper,fexc`ept the farthermost stripper, said spring pulls upon the arm 93 of the lever 92 which moves the interponent. The spring 99. for the stripper farthest from the platen pulls upon an arm which is joined to the 'lower arm `98 whereby the interponent on said farthermost stripper is moved. f

-The arms 93 and 96, which encounter the stripper-lugs 89 and the stop 85 respectively, have cam-shaped edges 101 to engage said lugs and stop. Said cam-shaped edges are so formed that when the strippers reach the limit of their retraction the interponents are withto insure the return to normal position of the 'dog's after they have been pushed aside to permit the passageof the tappets. The.

springs 94, yieldably connecting the interponent-s to the arms 98 and 98*l of their respective actuating levers, are of such strength that each spring yields as its lever i's first turned when the strlpper nears the end of its carbonstripping movement. There is thus at first a relative displacement between the arm 98 or 98a and the related interponents 90, such displacement being limited by a lug: 103 former, upon'the interponent and which engages a side of the arm 98 or 98a. As each stripper reaches the end of its retractive movement, the arm 98 or 98a is further displaced, and, having engaged the lug 103, draws the interponent from engagement with the dog. At the moment the interponent escapes from the dog, it is drawn with a snap movement toward the arm 98 or 98a again, and thus escapes with a snap movement from the dog. The point on the dog at which the interponent-portion 91 engages said d og, and the point at which said dog is pivoted, are so disposed that a tappet engages said dog at a portion thereof that is substantially closer to its pivot than -is the point engaged by said interponent-portion 91.

In this manner, the reaction upon said porlpets tion 91, due to the retraction of the stripper while said portion is holding the dog, is made substantially less than it .would be if the tappet engaged the dog at a point farther' from its ivot. The disengagement of. the interponent from the dog is thereby substantially facilitated. v

The dogs may be formed, as shown in Figure 8, in a U-shape, to include the portions 87 that extend into the path of the tappets which, in order to engage bothv portions 87, project from opposite sides of the belt 45. The tappets may be formed as shown in Figure 3, and according to said figure each of said tapis made up of a body-portion 105 which passes through the beltvand has a head 106 from which extends a tappet-portion 46 projecting from one side of the belt. The other end of the body-portion projects from the opposite surface of the belt and has the opposite tappet-portion 4:6b beyond a threaded portion upon which is threaded a nutv 108 by means of which the whole tappet is fastened to the belt.

Figure 3 also indicates the manner inwhich the dog may be pivoted upon the stripper in order to limit thelen th of the dog-portions 87 as measured from the pivot-axis of the dog. To this end, said pivot-anis, as shown in Figure 3, is projected within ,the belt 45.' The dog is therefore pivotedfrom opposite sides of the belt, and means whereby this is best accomplished' include a. bracket 109 fastened to the stripper and having a portion 110 spaced far enough from the stripper to afford room for inserting the dog between said portion 110 and the stripper.- One of two shouldered pivot-screws 111 is threaded into one side of the dog and bears in said portion 110, and

the other of said screws is threaded into the opposite side of the dog and bears in the stripper 29. Each dog is spring-pressed in its normal position by means of the spring 88 which, as already stated, normally holds the dog against the lug 89 of the stripper, one end of said spring being attached to a projection of the yoke 112 which joins the opposite sides of une dog. The other end o'f said spring 88 may be attached to a stud 113 which may form part ofone of the rivets that secure the bracket 109 to the stripper. In order to set the initial position from which the strippers advance and to which they are retracted, the stop 85 may be shifted and may be secured in any position in which it is set on the stripper guide-rail 31 by clamp-screw 114.

The usual feed-rolls 115 co-operate with the' platen 16 to move the Web around the platen. Said feed-rolls are disposed, in the usual manner, on opposite sides of a shaft 117 in cradles 118, in which they are supported and which may rock upon saidshaft 117 for releasing or casting ofi1 said feed-rolls. Said cradles have arms 119 so disposed that they embrace flattened portions of a -feed-roll-releasing rod 120 in scissor-like manner, to the end that a slight rotation of said releasing rod 120 will displace the cradles 118 and cause the feed-rolls to be released or cast off from the platen. The feed-rolls are pressed toward and against the platen by springs 122 bearing upon the cradles 118. At one end of said rod 120 connection is made, as shown in Figure 2, to the usual finger-piece 121.

After the typing of a form on the web is finished, and before the carbons may be retracted, said feed-rolls must be released or cast oif from the platen to relieve the carbons, which are to be retracted. of their pressure. The leading edge of the web must alsov be gripped and held so thatthe web is not retracted with the carbons.

A further feature of the invention is the provision of means whereby the feed-rolls are automatically cast off and the web simultaneously gripped in an initial part of the operating movement of the crank 55 and before the tappets engage the carbon-strippers. At the delivery side of the platen there is the usual table 123 against which the leading edge of the web may be clamped as usual to hold said web during carbon stripping. Said table 123 is supported by the ends 18 of the platen-frame. The web is clamped in the usual predetermined position registered by a gage-surface 126 which, in order to accommodate different forms, is shiftable along said table 123.4 The means, wherebythe web is clamped to said table, must therefore shift with said gage-surface, and are accordingly a part of the structure in which said gagesurface is embodied. For holding the leading endsl of the web against the table 123 there are' clamping pads 127 which, in order to roo , clamp or release the web, are mounted on the ends of arms 128 fastened to a rockable shaft 129. Said shaft 129 may be journaled in upstandingv ears 130 that project from the end portions of a bar 131 that extends across and is shiftably secured to the table 123. On the forward edge of said baris formed the gage-surface 126 which, asl shown in Figure 6, may be structurally divided into a middle portion and two lateral portions. The middle portion of said gage-surface has a rearwardly-bent extension 132 which carries the usual shiftable gage 133 for positioning the web in proper relation to the form-severing knife 125. Said knife extends lengthwise of the platen and is secured at its ends to the table 123. Figures 4 and 7 show means for securing the bar 131 with the clamping and gaging devices thereon in any adjusted position along the table 123. For thus securing said bar 131 and its attachments, and guiding it along the table 123, clamp-screws 124 pass through said bar and through slots 134 in the table 123. Said slots extend in the direction of adjustment `of the bar 131 along the table 123. As shown in Figure 4, said bar has on its under side guide-blocks 135 which fit the slots 134. Each block 135 projects slightly below the under surface of the table, and over the part of the block project-V in below said surface there fits the channel 1.7 of a clamping block 138 in which the clamp-screw 124 is threaded. By means of the engagement of the channel 137 with the block 135, turning of the clamping block, when said clamp-screw is loosened, is prevented.

' A further feature of the invention is the provision of means whereby the vfeed-rolls are automatically cast oli and the web is silmultaneously gripped during an initialpart 'of thelv'operating movement of the, crankj Y "andy before any tappet'46- engages a stripper fftof retract it. By said last-mentioned means, the feed-rolls are also automatically restored and the web is automatically released at the end ofthe operating movementofv seid crank 127, irrespectivel of the positionfoffsai along the table 123, the arin140 coacts with y"af member 141 having'. an element which,in move4 ing said arm, is nevertheless 'always parallel .fto the table 123. Saidelementtif. tliemelnber. l' -141 is preferably inthe form-of av slot '142 '55 after the strippers. have been retracted.

Said means whereby the web-clamping de- Vice and the feed-rolls are automatically actuated before and after carbon-stripping will -now be described. The clamping rock-shaft I l129 may be' actuated by means of an arm 140` which, as shown in' Figure 6, is :at the left* end 'of said shaft. In order thatlsaidshat 129 may be rocked to actuate theclain'ipads lparallel to the table 123 and cri-extensive with the range within'which the clamping device is shifted. 'A pin-136 in the end 'of the arm v shown in Figure padsf" slot 142. For moving the member 141 in parallelism with ythe table 123, it is pivotally connected, as shown in Figures 1 and 9, at its upper end to an arm of a bell-crank 144, and at itslower end to a similar arm" of a bellcrank 145, the other arms of said bell-cranks being connected by a link 146. Said bellcranks are pivotally mounted upon ears 147 projecting from the paper-table 3123. The bell-cranks, the clamp-actuating arm 140, and the arms 128 upon which the clamp-pads 127 are mounted., are so disposed that the clamppads are disengaged from the table 123 when the upper bell-crank 144 is against a. stop 148 that projects from the ear 147 upon which said bell-crank is pivoted.

Means, whereby the operating movement of the crank 55 may control the feed-rolls 115 and the Web-.clamping device before and after the strippers are retracted, are particularly shown in Figures 1 and 9. A cam 149 is keyed to the crank-shaft? 56 and has a camming notch 150. In the normal position of said crank 55, a roll 151 of a. follower-arm 152 for said cam rests in said notch`150. Said folloWerarm 152 is part of a lever 153 which may be pivoted upon an ear 154 yextending from the paper-table `123. A spring 155 vice and to the feed-roll-releasing rod 120... vConnection'between said lower arm 157 and j,

said link 146 is made by means of al spring `159. As shown in Figure 1, the pull of `said spring 159 holds the link 146 endwise,"'so

that a stop-pin 160 projecting fromthe side -jofsaid link normally bears againstaside ofsaid arm 157 of thel cam-controlled lever 153. The throw of said cam-lever153iss'uch that there is an excess of movement of' 'the concerned. In this excess of 'movement/thai spring 159 isistretclie'd as the clam 127 press theiweb 'a' 'ains't thetab 'inattesi @"5 't is evidentv marchera;

the web by ther:'ciamping.'pads' 127;' lOwing 153.1 omessa-,oratie seringue .is attached o the arm 157 is alsojconnectedffto ar 157 of the eam-eontrolledi leverf15 to a projection', 162 of'tlielinlgllltfthotherend of thespring "being attached t Il() arm 157 as far as webftclamping,purposesare l which the aforementioned finger-piece4 121 in theend of the arm 157 The purpose of the pin-and-slot connection thus formed is that the feed-roll-releasing rod may be controlled lby the finger-piece 121 independently of the cam-controlled lever 153.

Figure 9 shows how, by the means just described, the feed-rolls are automatically Vv,cast oil' and the web is automatically gripped during an initial portion of the Operating movement of the crank 55. As the crank-continues itsv revolution the roll 151 of the camcontrolled lever 153 rides on the dwell 168 of the cam 149. At the end 0f the revolution of the crank, the notch 150 of said cam is in its normal position again, causing the cam-controlled lever 153 to be rotated as the roll 151 thereof, under the influence of the lever-spring 155, drops into said notch. As

. the lever 153 thus rotates, the feed-rolls are restored to the platen and the clamping pads 127 are caused to be withdrawn from the web.

In order that the feed-roll springs 122 may aid in the restoration of said feed-rolls, it is 'desirable that the feedrollreleasing rod be not rotated to such an extent that the wide part of its flattened portions are on a dead center with the cradle-arms 119 that embrace said portions. A rotation of the rod l2() to the extent indicated in Figure 9 is usually suiticient to cast off the feed-rolls enough to relieve the carbons of their pressure.

The cam 149 for automatically releasing thefeed-rolls and clamping the web may be Vsaid to be supported by the carriage-frame 20, while the web-clamping means and the feed-rolls are supported in the platen-frame that is shiftable up and down relatively to said carriage-frame, said shifting of the platen-frame being for the purpose of po sitioning the platen for either upper-case or lower-case typing, the platen being-normally in lower-case position. It is assumed that the platen is in said lower-case position when the strippers are to be retracted.' There may be occasions, however, where the platen is, by the usual means, not shown, lixedlyset in its upper-case position so that all the characters typed are upper-case characters. Where it is desired to retract the carbonstrippers while the platen is in upper-case position, a modification of the means. connecting the cam 149 to the web-clamping means and feed-roll-releasing means is necessary. There is accordingly shown, in Figure 7, means whereby said cam may actuate the clamping device and release the feedrolls irrespective of whetherv the platen is in upper-case or lower-case position. The hereinbefore-described cam-controlled lever 153 may, according to said Figure 7, be regarded as divided into two portions, one a portion 175 pivoted at 176 tothe carriageframe 20, and the other a portion 177. pivoted to the ear 154 projecting from the table 123. The latterl portion 177 has a pin 178 engaged by an edge 179 of the port-ion 175, said edge extending in the direction in which the platen is shifted. The varm or portion 175 carries a cam-follower roll 151". It lwill be noted that the effective length of the portion 175, from the point 176 at which it is pivoted, should be made as large as possible so that the diiference in the movements of the portion 177 may be negligible, said difference resulting from the shifting of the platen-frame whichv supports said portion 177. The platen-frame, it will be understood, is shifted up and down by means including the usual shift-rod 181 having at each end an arm 182 that engages the sides 18 of the platen-frame.

In the normal position of the operating crank 55, the tappets 46 on the stripperretracting belt 45 should be in a position that is clear of the range of normal movement of the carbon-strippers toward the platen. Such a position is indicated in Figure 1. The pulleys 37 and 47, over which said belt 45 is run, have clearance-pockets 169 to clear the tappet-portions 46a projecting from the inner side of said belt. In order that the belt 45 may be positively driven by the crank 55, and also in order that the tappets 46 may move in proper synchronism with said crank, there may be formed in said belt forty-tive holes 170 engaged by sprocket-teeth 171 formed in the pulleys 37 and 47 over which said belt is run. To this end, the belt 59 is also provided with holes 172 which engage sprocket-teeth 173 formed in the pulleys over which said belt 59 is run.

The usual adjustable web-guides 180 may be disposed upon the shaft 48 that is at the upper ends of the guide-rails 31.

Variations may be resorted to within the scope of the invention, and portions of the improvements may be used without others.

Having thus described my invention, I claim:

1. In a multiple-ply web-manifolding typewriting machine, the combination with a platen-carriage having a carbon-stripper movable toward and from said platen upon uides carried by the carriage, of a belt having means running said belt parallel to the path of said stripper, means carried by said belt, operative to retract said stripper, a. stop, and means movable with said stripper co-operating with said stop, whereby the extent of retraction of the stripper is automatically limited by said stop regardless of a continued movement of the beltor the extent of said continued movement.

means for driving in a carbon-stripping di* l .2. In a multiple-ply web-manifolding typewriting machine, the combination with a platen, a carbon-stripper movable toward ly limited by said stop regardless of a continued movement of the belt or the extent of said continued movement.

3. In a multiple-ply web-lnanifolding typewriting machine, the combination with a platen-carriage having a lmultiplicity of carbon-strippers individual to superposed carbons and individually retractable from said platen, and guiding means on the carriage for said st-rippers of an `endless belt,

means for running said belt adjacentv the path of said strippers, and means carried by said belt and operative as it -is run along said path, to automatically retract said strippers one at a time beginnlng with the outer- Vmost carbon-sheet.

'a platen-carriage havin 4. In a multiple-ply `web-manifolding typewriting machine, the combination with a multiplicity of carbon-.strippers indivi ual to superposed carbons and individually retractable from said platen, andguiding means n the carriage for said strippers, of an vendless belt,

rection'said belt adjacentthe path,of said strippers, and means whereby said belt becomes operative as it is run along said path,

.to pass certain of' said strippers and actuate f." only the stripper farthest from the laten.

5; In a multiple-ply web-manifol lng typewriting machine, the combination with a platen-carriage having a multiplicity ofcar bon-strippers individual to superposed car- 1 bons/and individually retractable from said platen, and guiding means on the carriage-l for lsaid strippers, of an endless belt, manual means for driving said belt in va carbon-strip'- ping direction adjacentthe ath of said strippers, interponents carried `y each stripper, and means carried by said belt and co operative with said interponents, as the belt is run along said path,to selectively retract said strippers one at a time beginninghwith the outermost carbon-sheetl 6. I n a multiple-ply web -manifolding type-l Writing machine, the combination with a platenecarriage having a multiplicity of carbon-strippers individualto superposed carbons and individually retractable from said platen, a'ITC guiding means on'the carriage for said-strippers, of an endless belt, means operated by a revoluble handle for driving said belt adjacent the path of said strippers,

means 'carried by said belt operable to retract said strippers one vat a time beginning with y.

vto enable an operator to gage one revolution of said handle.

7. In a multiple-ply web-manifolding t pewriting machine, the combination Wit a. platen-carriage having a multiplicity of carbon-strippers individual to superposed carbons and individually retractable from said platen, and guiding means on the carriage for said strippers, of an endless belt, means for running said belt reversely to 'the platen-fed direction of said strippers, said belt being normally stationary, and means carried by said belt operable, when said belt is run along its path, to retract said strippers one at a time said last-mentioned means being so spaced upon said belt that they are not in the path ot' said strippers when said belt is in its normal stationary position. i 8. -In a multiple-ply web-manifolding typewriting machine, the combination with a platen-carriage having a multiplicity of carbon-strippers individual to superposed carbons and individually retractable from said platen, and guiding means on the carriage for said strippers, of an endless belt, means for driving said belt in a carbon-stripping direction parallel to the path of said strippers, tappets on said belt, and means carried by each stripper and coactin with said tappets during the travel of the elt, whereby said strippers become operative one at a time beginning with the outermost carbon-sheet.

9. In a multiple-ply web-manifolding typewriting machine, the-combination with a platen-carriage having a multiplicity of carbon-strippers individual to' superposed carbons and individually retractable from said platen, and guiding means on thecarriage for said strippers, of a belt, means for driving said belt in a carbon-stripping direction parallel to the path of said strippers, tappets on said belt,., means carried by each stripper coacting with said tappets during the travel of said belt that become operative upon said strippers one atv a time to strip a carbon', and

al stop on the carriage, whereby the extent 7' of retraction is automatically limited.

'10? In e 'multiple-plyv web-manifomng 12o typewriting machine, the combination with a platen-carriage having a multiplicity of caron-strippers individual to su eposedcax-, 1 bons and individually retracta le from said i platen, and guiding means on the carriage for said strippers, of a belt, means for running said beltrparallel to the path of Saidstrippers,

tappets on said belt, means jon saidstrippersj coacting withsaid tappets during the traveL of said belt that become operativen on said strippers one at a time to strip a carbon, andv stopping means, whereby the extent of retraction of said strippers is automatically limited,

said stoppin means including a stationary stop upon t 1e carriagecoacting with the stripper that is retracted first and also including a stop on all the other strippers except the one that is retracted last.

11. In a .multiple-ply web-manifolding typewriting machine, the combination with a platen-carriage having a multiplicity of carbon-strippers individual to su erposed carbons and individually retracta le from said platen, and guiding means on the carriage for said strippers, said strippers normally grouped next to one another along said guidinv means and movable in agroup toward said platen vfrom a predetermined initial position, of a belt having tappets thereon, means for running said belt. parallel to the path of said strippers a spring-pressed dog displaceably mounted upon each stripper to extend into the path of said tappets to be displaced by said tappets to permit their free passage, and a shiftable spring-pressed interponent mounted upon each stripper, Aand operable in a normal position thereof to lock the associated dog thereon and a stop on the carria le operative to determine the disposition o'f e interponent relatively to the dog on the stripper farthest from the platen.

12. In a multiple-ply web-manifolding typewriting machine, the combination with a platen-carriage having a multiplicity of carbon-strippers individual to superposed carbons and individually retractable from said platen, and guiding means on they carriage for said strippers, said strippers hormally grouped next to one another along said guiding vmeans and feedable as a group toward said platen, of a traveling belt having tappets thereon, means for running said belt parallel to the path of said strippers, a'springpressed dog displaceably mounted upon each Y stripper to extend intol thepath of said tap- 1 interponent mounted upon each strlp pets to be displaced by said tappets to permit their free passage, a shiftable spring-presse lper an operable in a normal position to lock t e associated dog thereon, stop-means on the car-4 riage operative to determine the disposition of the interponent relatively to its do on the stripper farthest from the platen, an means whereb the disposition of the interponent on each o the following strippers is controlled by means mounted upon the preceding striper. 't

- 13. In a multiple-ply web-manifolding` typewritinl machine, the combination with a laten-carriage having a multiplicity of caron-strippers 4individual tov su rposed carbons and individually retracta le from said platen, and guiding means on the carriage for said strippers, said strippers normali grouped next to one another along said gui ing `means and feedable as a group toward* said platen, of a traveling belt having stripu pets for a free passage thereof, an interponent on each stripper co-operative with the dog thereon, said interponent being normally operative to lock the dog and thereby prevent its displacement and drive its stripper, and means on each` stripper operative, in a stripper-retracting direction, to vibrate the interponent of an advancing stripper, release its locked-up dog, and separate the stripper from the control of the driving tappet.

14. In a multiple-ply web-manifolding t; pewriting machine, the combination with a platen-carriage having a multiplicity of carbon-strippers individual to superpose carbons and individually retractable from said platen, and guiding means on the carriage for said strippers, said strippers normally grouped next to one another along said guiding means and feedable asa group toward said platen, of a traveling belt having stripper-engaging'tappets thereon, means for running said belt parallel to the path of said strippers, a dog on each stripper extending into the path of said tappets and pivotally mounted to be displaced by said traveling tappets to permit the free passage of said tappets, an interponent on each stripperassociated with the dog thereon, said interponent being normally operative to lock the dog and thereby prevent its displacement and drive its stripper, means on each stripper operative, in a stripper-retracting direction, to vibrate the interponent of an advancingstripper to release its dog,vand a stop onthe carriage operative t0 establish a normal stripper position for the first stripper restored, whereby each successive dog may be released seriatim from formed with parallel arms that straddle the belt and extendinto the path of said tappets, said tappets being4v assembled to the belt to project from both-faces of the belt to jointly engage and displace each dog, and means carried by each stripper operative to prevent vthe displacement of the dogs and effect a carbon-stripping movement.

16. In a multiple-ply Web-manifolding typewriting machine, the combination with a platen carriage having a multiplicity of earbon-strippers individual to superposed carbons and individually retractable from said platen, guiding means on the carriage for said strippers, said strippers normally grouped next to one another along said guiding means and feedable as a group toward said platen from kpredetermined initial positions and a stop adj ustable along said guiding means for registering said initial positions,of a belthaving tappets thereon, means for driving said belt parallel tothe path of said strippers, and means on said strippers .rendered operative as the belt is driven along said path, to retract said strippers seriatim to said initial positions.

17. In a multiple-ply Web-manifolding typewriting machine, the combination with a laten-carriage having a multiplicity of caron-strippers individual to superposed carbons and individually retractable from said platen, and a pair of guide-rails on the carriage for said strippers` of a travelling endless belt, a pair of pulleys over which said belt is run, supporting means for said pulleys operative to guide the Vbelt parallel to said rails and adjacent the path of said strippers, operating means connected to one of said pulleys for driving the belt, and means rendered operable by the driven belt which renders the strippers operative to retract the carbons seriatim.

18. In a multiple-ply Web-manifolding typewriting machine, the combination with a platen, a platen-carriage having a multiplicity of carbon-strippers individual to superposed carbons and individually retractable from said platen, and a pair of guide-railson the carriage for said strippers, of a traveling endless belt, a pair of pulleys supported by one of said guide-rails, over which said belt is driven to run parallel to said rail and parallel to the path of said strippers, one- Way operating means also supported by said carriage and connected to one of said pulleys to drive the belt, and means rendered operable by the driven belt, which renders tho strippers operative to be retracted one by one.

19. In a multiple-ply web-manifolding typewriting machine, the combination with a platen-carriage` having carbon-stripping means feedable toward and retractable from said platen, a crank, and means operable by said crank to engage and retract said carbon` stripping means, of a clamping device for holding the web during the stripping of the carbon, and connections driven by the crank and operative upon theclamping device to automatically grip the free ends of the Web before the carbon-stripping means become operative, and, after the ensuing retraction typing,

typewriting machine, the combination with a platen-carriage having feed-rolls cov-o erating with said platen for feeding a wei in carbon-stripping means feedable with the lWeb toward said platen, and a crank operably connected to engage and retract said carbon-stripping means, of a Web-clampingl device, means driven by said crank and operatively connected to said clamping device to clamp the' web before the carbon-stripping means are ctl'ective, and operative after the ensuing retraction of the carbon-stripping means to automatically release the clamped web, and means connected to said crankdriven means operative to automatic-ally cast oil the Web-feeding rolls before the carbonstripping means are effective, and subse quently restore the feed-rolls after the retraction of the carbon-strippinv means.

21. In a multiple-ply Web-manifolding typewriting machine, the combination with a platen-carriage having a plurality of carbon-strippers individual to superposed carbon-inlays and individually retractable from a platen-fed position of the web, and guiding means on the carriage to determine a path for said carbon-strippers, vof a stripper-retracting member movable parallel to the path of the strippers and carrying stripper-driving means at recurring intervals, and mechanism carried by said strippers and evo-operative with said driving means to retract the carbon-strippers seriatim beginning with the outermost carbon-sheet.

22. In a multiple-ply Web-manifolding typewriting machine, the combination with 4a non-displaceable platen and a carbon-carrier feedable towards said platen between Worksheet-s fed around said platen in typing, of an endless belt movable reversely to the platenfed direction of the carbon-carrier, said belt provided with means operative automatically during the. transit of said belt to pick up and automatically release said carrier for 'a carbon-stripping' motion of predetermined typing, of manually operable means` on the` carriage traveling parallel to the path of the carbon-carrier in a carbon-stripping direction and operative during a continuous movement of said manually operable means to pic-k up the carrier, strip the carbon from a typed area of the Webs, and then release the carrier at a normal position.

JOHN TOGGENBURGER.

ik 'r

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