US1668175A - Typewriting machine - Google Patents

Description

May 1, 1928.

B. C. STICKNEY TYPEWRITING MACHINE Filed Dec. 6. 1924 5 Sheets-Sheet 1 May 1, 1928.

B. C. STICKNEY TYPEWRITING MACHINE Filed Dec. 192

l 3 Sheets-Sheet 2 I 1-! I lnvenfor:

B. C. STICKNEY TYPEWRITING MACHINE May I, 1928. 1,668,175

Filed Dec. 6. 1924 3 Sheets-Sheet 5 /n Yen far:

Patented May 1, 1928.

TED

PATENT oi-"rlc.

BURNHALM C. STiGKNEY, 0]? RUTHERFORD, NEW' JERSEY, ASSIGNOR T ll 'unnnawoon ELLIOTT FISHER CDMPANY, 01* NEW YORK, N. Y., 145. CORPORATION 01E DELAW'ARE.

rrrrswnrrrn'e- Machine.

application filed December G, 19%. Serial 1W0. 754,289.

This invention relates to typewriting machines in which the plies of work-web made up of printed forms, either fan-folded or otherwise, and interleaved with carbons, are typed simultaneously; relative shifting of the carbons being etfected from the typed forms to new forms as the typing proceeds. In this class of manifolding typewriters the cylindrical platen of the machine has been elevated as a preliminary to straightening out the web, so as to render shifting of the carbons possible, and it is one of the objccts of the present invention to provide simply and economically for avoiding the necessity of so elevating the platen, and for shifting the carbons relative to the workweb. According to the present invention a loop of loose work-web and interleaved carbons is established at the rear of the machine, to permit free movement of the carriage in both directions during typing of the forms, and mechanism is included for straightening out the web in flat condition so as to permit easy shifting of the carbons, and it is another object of the present invention to provide a simple, inexpensive device of this character which may be readily attached to any standard typewriting machine, either old or new, or readily detached. The machine may be used in its ordinary way if desired, first casting off the composite web from the platen. The loop-establishing mechanism includes a carboircarricr, which also provides a support for the rear portion of the work-web as the same rises from a stack at the rear of the machine and is fed around the platen. This carbon-carrier is stationary as the platen-carriage travels. \Vheu the loop-establishing mechanism is thrown rearwardly of the machine the webplies are straightened out, facilitating carbon-shifting operations. The loop swings from side to side as the carriage travels to and fro, one end of the loop being stationary and the other end traveling with the carriage. The loop also affords a length of composite web to be taken up by the platen at the line-spacing operations during the typing of a form.

Another feature of the invention is the provision of means'preferably in the form of a handle for shifting the carbon-carrier rearwardly, means being provided for limiting the throw of the handle for different It is necessary in machines of this kind to determine the first line of typing for the forms, and another feature of the invention is the provision of means for gaging the leading edge of the web as it is brought upwardly and over the platen.

Another feature of the invention is the provision of an index-device for both gaging the leading edge of the web and for determining the amount of margin to be left at the top of a form, said gage being adjustable to accommodate various lengths of printed forms.

A further feature of the invention is the provision of side-edge guides adjacent the rear of the introductory papertable for guiding the web as it is brought to position around the platen, and for preventing said web from bulging or buckling away from the table and toward the platen, when the loop is being establish d at the rear of the machine.

Other features and advantages will hereinafter appear.

In the accompanying drawings,

Figure 1 is a diagrammatic transverse sectional view of a typewriting machine, showmg my invention applied thereto, the workweb being shown in the position with a loop established behind the machine.

Figure 2 is a diagrammatic sectional view, showing the carbon-carrier withdrawing the web and interleaved carbons bodily around the platen, the leading edges of the carbons emerging from between the platen and rear feed-roll of the machine.

Figure 3 is a front elevation of a typewriting machine, showing my invention applied thereto.

' Figure 4 is a fragmental View of my improved carbon-holder and its means of at-' tachment to the mechanism.

Figure 5 is a View similar to Figure 1 taken on the line 5-5 of Figure 3, an showing the carbon-carrier thrown to its rearmost position, the web straightened out and the carbons shifted back from. typed Bit forms to position between ,fresh forms of v the web.

Figure 6 is a detail sectional new of a paper-table and leading-edge gage, on the line 6-6 of Figure 3.

Figure 7 is a perspective view of a side guide for the edges of the work-web.

Figure 8 is a view of a shiftable sheet having a short length of carbon attached thereto.

I have used the reference character 10 to designate generally the frame of a typewriting machine. A platen 11 is fixed upon the usual laten-shaft 12, which is mounted in the ends 13 of a platen-frame 14, the latter forming a part of a traveling carriage 14', and front and rear feed- rolls 15 and 16 normally bear against the platen to hold a work-sheet thereto, and enable the same to be fed around the platen. Suitable release mechanism, not shown, but which may be of the usual type well know-n in the art, isused for releasing said rolls from the, platen when desired, and type 17 are driven against the platen in the usual way. An introductory paper-table 18 extends upwardly and rearwardly from the platen and may be formed with a rounded head 19 at the top edge thereof, so as to form a smoothedge over which work-sheets may be fed or rest. Thus far the description is that of the usual standard typewriting machine, and is given here simply for a clear understanding of the manner in which the present invention is applied thereto, for converting the machine to use for continuous billing purposes.

Manifolding machines employing a nonswingable platen usually handle a web made up of multiple plies, either fan-folded or otherwise, but, due to the factthat the leading portion of the web is in, connection with ;the platen, while the rear portion of the web is generally held stationary usually by means of a carbon-holding support, it is necessary to establish a loop of loose web at the rear of the machine to permit free carriage-movements of the platen without interfering with the web. For accomplishing this purpose there is provided at the rear of the machine a. framework which may comprise a pair of angle-iron frames, such as indicated at 20, extending under the main frame-beams 21 of the typewriter-frame 10, and held to said frame-beams by means of the usual screws which hold the typewriter-feet 22 to the machine. The frame extends rearwa-rdly and upwardly as indicated at 23, and terminates at a point approximately on a plane slightly above the typewriting machine. Work-web-supporting arms 24 are pivoted at 25 to the rearwardly and upwardly extending portion 23 of the frame 20, so as to be swingable forwardly and rearwardly of the machine. to establish a loop of loose work-web W and interleaved carbons C, or straighten out the same.

The free ends of the arms 24 are turned over at right angles, as shown at 26, to provide means whereby a carbon-holding frame 27 may be attached by screws or rivets 28.

rod 31 extends therebetween to fasten thefree ends of the arms together, and provide a guide or support for the web W.

For giving the arms 24 movement back- Wardly and forwardly, there is mounted preferably upon the left-hand side of the frame 20 a lever 33 pivoted at 34, so as to swing forwardly and rearwardly at the side of the machine. A handle 35 may be pro vided to facilitate movement of the lever 33,

' and a link 36, which may be connected by a pin or screw 37 to the lever 33, extends rearwardl and upwardly to one of the arms 24 where 1t may be likewise connected thereto by a in or screw as indicated at 38.

In or er to accommodate the mechanism to different lengths of work-web units or form-sections, it is necessary to provide some means for limitingthe rearward throw of the arms 24 for said different lengths of forms, and for this purpose there is provided a segment 39 pivoted to the lever 33 at 40, and provided with a radial slot 41 and a thumb-screw 42, passing through the slot and threaded'into the lever 33, so that the segment 39 may be turned angularly about the pivot 40, and clamped in, any adjusted position. The segment has a series of teeth or notches 43 at graduated distances from the pivotal point 40, and a pin 44, fixed to a plate 45 which is secured upon the frame 20, is arranged to engage one of said notches to limit'the throw of the arms 24. A stop 46 engages the lever 33 when thrown forwardly to the loop-forming position-of the arms 24 (see Fi re 1). l

A ta le 47 maybe provided upon the frame 20 adjacent the lower rear portion of the machine for supportingthe lower portion of the work-web loop as clearly shown in Figure 5. The work-web WV is fed upwardly from a pack at the rear of themachine, and rises over the rounded apron 29 of the carbon-carrier, thence between the usual carbon-carrying blades 48 and downwardly to the platen 11 where the leading edge of the web is entered between the platen and the feed-rolls.

The work-web is fed upwardly for gaging the leading edge thereof, so as to determine the typing int of succeeding web-forms, and for indicating the-position for holding said leading edge while "the carbons are shifted relatively to the work-web. For thus gaging the work-web, a table 49, in cluding a. pair of side wings 50 having elonlit gated slots 51 therein, is mounted adjacent ends 13 of the platen-frame 14, the brackets 52 having upstanding extensions 53 providing a support tor a rod 54 which extends through suitable perforations in the wings ot the table 49. The lower portion of the wings 50 may be notched as at 55, so as to be received upon the usual puper-tinger rod 56 which extends paralleladjacent the rear of the platen ll. Collars 57 are mounted upon the rod 54, and may be held in position by means oi set screws 58 for securing the table 459 in position. Thus it will be seen that while the table 49 is rigidly secured in position over the platen, said table may be easily removed from the machine by simply detaching" the brackets 52 and lifting the notched portions clear of the rod 56.

The table 49 is marked oil into gradua tions 59 which represent ditierent positions torbringing the leading edge of work-webs having ditterent form-lengths. A slidable member 60 includes wings 61 bent rearwardly, so as to overlie the wings 50 ot' the table 49, and pins 62 carried by said member are arranged to ride in the slots 51 and act as guides during the vertical movement of the member 60. The upper portion of each of the wings 61 has a threaded perforation for the reception of thumb-screws 63, which pass through the corresponding slot 51 of the wings 50 and are effective to clamp against the inner sides of said wings to hold the member 60 in adjusted position on the table 49.

The member 60 also includes a l nite-edge 64 extending parallel with the platen, and

against which completed forms are severed from the body of the work-web. A series oi vertically-arranged graduated marks ()5 is carried by the member 60 and represent marginal depths to be left at the top of the v \VQb-fOlll'iS to be typed upon iii the machine. An index device 66 has a slot 67 through which a thumb-screw 68 passes into threaded relation with a suitable perforation in the member 60. The index-device includes two index-fingers, respectively 69 and 70, which are arranged to be brought into register respectively with the graduated marks and 59 to determine the depth of marginal heading for a form and the position for holding the leading edge of the work-web while the carbons are being shifted.

Figure 1 shows the position of the various parts of the mechanism during a typing operation. It will be noted that the carbons C have been brought to a position, slightly above the printing line of the platen. so as to print typed impressions on all of the webs,

the first line of writing being shown at the printing point in this figure. At this time there extends above this new section of web two typed forms which have been completed, one of said sections extending immediately above the new section to be typed and teaurinating at the knife-edge 64, the other section extending above the knife-edge to an adjustable leading-edge gage 71, which determines the first line of typing tor the new section of forms. The section of torms above the knife-edge is nowtorn off against said edge prior to beginning typing the new terms.

After the uppermost form typed has been thus torn oil from the web the form immediately thereunder is permitted to teed upwardly as typing proceeds upon the new forms, and paper-lingers or rollers 11 adjacent the tront of the platen ll guide the web as the same is fed upwardly.

it will be noted that during typing of each section, there is a loose work-web loop established at the rear oi the machine, such as indicated at WV, and which depends from the paper-table 18 at one end, and from the earbon-carrier 27 at the other end, thus permitting tree movement of the carriage during typing operations. As typing proceeds and the web is line-spaced the loop is progressively shortened as indicated at W, but

"there is always suitioient length of loop left hanging to permit free movement of the carriage.

In shifting the carbons from typed forms to new forms, the carriage is first shifted to a position centrally of the machine so that the carbons may be drawn straight back therefrom, said position being readily determined by a gagepiece 7 5 fixed to the carriage and arranged to be brought into register with an index 76 fixed upon the usual front-scale-bar of the machine as illustrated in Figure 3. The handle 35 of the lever 33 is then swung rearwardly of the machine, thereby causing the arms 24 to move rearwardly and upwardly to straighten out the web. During this movement the web and carbons have been simultaneously moved downwardly along the table 49, anc, when they have reached the index-linger 70, the web is held against the table 49 to prevent any further downward i'novement thereof. At this point the carbons have just moved from beneath the platen and are in flat concushioning the rearward throw of the arms 24, there may be provided upon one of the frames 20 a curved spring 23' arranged to tion for the entiredistance between the point of connection of the web with the platen to the carbon-carrier, thereby permitting free movement of the carbons in a straight line 'rearwardly with respect to the web.- During all of the shifting operationsthus described, the feed-rolls have been cast off, so as to permit uninterrupted passageof the web around the platen. When the handle 35 has been pulled forwardly against the stop 46 the arms 24 have dropped to the position indicated in dot-and-dash lines in Figure 5, to re-establish the loo For guiding the work-web IV use may be made of a pair of gage-pieces 18, each including a curved lip 19' for engagementaround the head 19 of the paper-table 18, a side wall 20' for the sideedges of the workweb and a finger 21 overlying said web to prevent the same from buckling toward the platen when the loop is being formed.

When bringing a new section or form of the work-web to typing position, the leading edges of the web may be fed u -wardly by hand, clearance being permitte by reason of a cut-away portion 60 adjacent the righthand side of the .member 60, the web being advanced upwardly until it reaches the gage 71. The feed- rolls 15 and 16 are then thrown on; the section of web above the knife 64 is severed thereagainst, and typing upon the new form may be proceeded with.

In the interest of economy the carbon-sheet may be made up in "a manner such as indicated in Figure 8, in which a sheet of ordinary paper72, or the like, has attached thereto a short strip of carbon 73 adjacent the lower end thereof by any suitable means, such as a gummed strip or tape 74, although this is not essential to the invention as a full length strip of carbon may be used if desired. I

It will be seen from the foregoing description that the present invention involves an extremely simple mechanism which may be readily attached to any machine without alteration thereto, thus making It possible to use the machine in its ordinary way, while at the same time making the machine quickly convertible to use for continuous billing purposes.

It is obvious that instead of holding the leading portion of the web against the table 49 by hand" durin the carbon-stripping operation, the fee -rolls 1516 may be thrown on to clamp the web against the platen, the carbons being clear of the platen;

or else a clamp such as that shown by my Patent No. 1,582,438, dated April 27, 1926, may be used.

ary while the carriage travels, the front end of the loop being connected with the platen, said support movable rearwardly to straighten out said work-web in flat ,condition throughout the length thereof from said platen to said sup ort, whereby to facilitate shifting of the car ons from a typed section of said work-web to a new section thereof.

2. In a typewriting machine, the combination of a rotatable platen, a traveling carriage therefor, and a swingableframe at the introductory side of said platen for supporting the rear end of a composite loop of multiple-ply work-web and carbons, the front end of the loop extending beneath the platen, said frame being swingable rearwardly to an extent to straighten out said work-webiii flat'condition throughout the length thereof from said platen to said frame, whereby to tion thereof, and being further swingable rearwardly to strip the carbons while the work-web remains around the platen; said swingable frame being stationary during the letter-feeding movements of the carriage.

3. In a typewriting machine, the combination of a rotatable platen, a traveling carriage therefor, a swingable support at the introductory side of the platen for supporting the rear end of a composite loop of multipleply work-webvand carbons, the front end of the loop being connected with the platen, said support being stationary while the carriage travels, and bein movable rearward-. 1y to straighten out sai web in flat condition throughout the length thereof from said platen to said support, whereby to facilitate shifting of the carbons from typed sections of the Work-web to new sections thereof, and

adjustablestop means limiting the rearward throw of said support.

4. In a typewriting machine, the combination of a rotatable platen, a traveling carriage therefor, a detachable frame fixed to said machine and extending rearwardly therefrom, a movable carbon-carrying sup- 7 port pivoted to the rear of said frame whereby to rock forwardly and rearwardly from the introductory side of said platen, a bandle ivoted to said frame adjacent one side of t e typewriter, linkage connecting said handle with said support, a pin fixed to the frame, and an adjustable detent carried by ill Leeann said handle and arranged to engage said pin to control the rearward throw of said support, so thatwhen said support reaches the rearward limit of its throw the plies of a work-web and interleaved carbons held at one end by said platen and supported at the other end by said support are straightened out in fiat condition.

5. In a typewriting machine, the combination of a rotatable platen, a traveling carriage therefor, a detachable frame fixed to said machine and extending rearwardly and upwardly therefrom, a swingable frame pivoted to the rear of the upwardly-extending portion of said detachable frame, so as to swing forwardly and rearwardly with respect to the machine, a handle pivoted upon said detachable frame adjacent one side of the machine, linkage connecting the handle to the support, adjustable means for varying the rearward throw of said support when said handle is moved rearwardly, and a cushioning device associated with the rear of said detachable frame and effective to co-operate with said support to cushion the rearward movements thereof.

6. In a typewriting machine, the combination of a rotatable platen, a traveling carriage therefor, a detachable frame fixed to said machine and extending rearwardly and upwardly therefrom, a swingable frame pivoted to the rear of the upwardly-extending portion of said detachable frame, so as to swing forwardly and rearwardly with respect to the machine, a handle pivoted upon said detachable frame adjacent one side of the machine, linkage connecting the handle to the support, an adjustable detent for varying the rearward throw of said sup ort when said handle is moved rearward y, and a cushioning spring associated with the rear of said detachable frame and effective to cooperate with said support to cushion the rearward movements thereof.

7 In a typewriting machine, the combina tion of a rotatable platen, a traveling carriage therefor, and a movable support at the introductory side of said platen for supporting the rear end of a composite loop of multiple-ply work-web and carbons, the front end of the loop being connected with the platen, said support being stationary during the carriage travel and swingable rearwar'dly and upwardly from said platen to straighten out the length of web extending between the platen and said support.

8. In a typewriting machine, the combination with a rotatable platen, a traveling carriage therefor, and an introductory papertable, of a movable support at the rear of said platen for supporting the rear end of a composite loop of multiple-ply work-web and carbons, the front end of the loop being connected with the platen, said support bein stationary during the carriage travel an swingable rearwardly and upwardly to straighten out the work-web in flat conditron to facilitate shifting of the carbons, said support being so mounted that said work-web when straightened is substantially in a plane with the surface of said introduc tory paper-table it, in a typewriting machine, the combinatlon of a rotatable platen, a traveling can riage therefor, a detachable frame fixed to said machine and extending rearwardly therefrom, and a support pivoted upon said rearwardly-ertending frame for supporting a composite loop of multiple-ply workwveb and carbons, the front end of the loop being held by the platen, said support swingable forwardly to establish said loop and swinga-ble rearwardly for straightening out said work-web and carbons in a plane substan tially parallel with the plane of said introductory paper-table and clearing the same, whereby to permit easy shifting of said carbons relative to said work-web.

It). In a typewriting machine, the combination of a rotatable platen, a traveling carriage therefor, a detachable frame secured to said machine and extending rearwardly therefrom, a movable support pivoted to said frame and swing-able forwardly andrearwardly with respect to the machine, said support being effective to support the rear end of a composite loop of multiple-ply work-web and carbons, the front end of the loop being connected wtih the platen, means for swinging said support forwardly and rearwardly, means for limiting the rearward position of said support, and a table fixed to said frame and upon which the lower portion of the loop rests when said support has been thrown forwardly and downwardly toward the machine to re-establish said loop.

11. In a typewriting machine, the combination of a rotatable platen, a traveling earriage therefor, a detachable frame secured to the frame of the machine and extending rearwardly and then upwardly therefrom, a movable support pivoted to the rear of said detachable frame, a handle pivoted to the forward portion of said detachable frame, a connection between the handle and the support, an abutment fixed to said detachable frame, an adjustable stop device carried by said handle and arranged to engage said abutment to limit the throw' of said support when the handle 1s thrown rearwardly, said support arranged to support the rear end of a GOIIIPOSltB loop of multiple-ply work-web and carbons, the front end of the loop the platen, said handle when thrown rearwardly causing said support to move rearwardly and upwardly, whereby to straighten out said work-web and carbons in flat condition from said platen to said support, so that the carbons may be easily shifted from being connected with Till Till? extends around the platen, of a gage adjacent the front of the platen for determining the position for holding the leading edges of said work-web while said carbons are shifted relatively thereto, said gage being adjustable for determining said holding positlon for different lengths of form units to be severed from the web, and a gage cooperating with said first-mentioned gage for determining the .depth of margin for any of said different lengths of form units.

table adjacent the front of the 13. The combination with a typewriting machine including a platen, means for feeding a work-web and interleaved carbons therearound, and means at the introductory side of the platen for shifting said carbons relatively to the work-web, while the latter extends around the platen, of a table extending above the platen, a gage-piece adjustable upon said table, means for securing said gage in adjusted position, said gage determining the position for holding the leading edges of said work-web while the carbons are shifted relatively thereto, a Web-severing knife upon said table, and a gage for determining the depth of margin to be left at the upper edges of typed forms to be sevcred from the web.

14. The combination with a typewriting machine including a platen, means for feeding a work-web and interleaved carbons therearound, and means for shifting said carbons relatively to the work-web, of a laten and including a scale, a slidable kni e-carrying member vertically adjustable with relation. to said table, said member also including a scale, and-an index deviceadjustably mounted upon said member and having index fingers, one of saidifingers settable for gaging the leading edge of different lengths of forms to be typed in the machine and severed from the web against the knife, said second scale co-operating with the other of said index fingers for determining the depth of margin for any of said forms gagedby 7 said first-named scale.

15. The combination with a typewriting machine including a platen, means for feeding a work-web and interleaved carbons therearound, and means at the introductory lid. of the platen and including a looper in rear of the platen for shifting said car-- bons relatively to said work-web, while the [latter is around the platen, of gage means adjacent the front of the platen settable to determine the position of the leading edge of said work-web while the carbons are being shifted, and means for gaging the depth of headings of sections of said work-web to be detached from the main body thereof.

16. The combination with a typewriting machine including a platen, means for feeding a work-web and interleaved carbons therearound, and means for shifting said carbons relatively to the work-web, of a detachable frame secured adjacent the upper portion of the platen and including a table for the reception of the leading edges of said work-web, said frame having slots adjacent the sides thereof, a member overlying said table and slidable within said slots, means for securing said member in adjusted relation upon said frame, said table and slidable member, each having a vertically-arranged scale, and a slidable index device including pointers adjustable upon said slidable member to register with both of said scales whereby to determine the position for holding the leading edge of said work-web while the carbons are being shifted, and for predetermining the depth of margin to be left at the top of sections of said work-web to be severed from the main body thereof.

17. The combination with a typewriting machine including a platen, means for feeding a work-web and interleaved carbons therearound, and means at the intake side of the machine for shifting said carbons relatively to the work-web, of a work-table at the,delivery side of the platen, a knifecarryingrgage-plate adjacent the front of the work-table and against which sections of said work-web are severed, said gageplate being cut away, adjacent one side thereof over said table providing clearance, whereby saidweb may be handled and fed upwardly over said table to bring new sections of the web to typing position, and a gage for the leading end of the web.

18. The combination with a typewriting machine including a platen, means for feeding a work-web andinterleaved carbons therearound, and means at the intake side of the machine for shifting said carbons relatively to the work-web, of a work-table at the deliver side of the platen, a knifecarrying mcm er adjustably mounted upon saidwork-table, said member including gage means for setting the knife to the tearingofi' line for different lengths of sections to be severed from the main body of the workwep, and a gage for the leading" end of the we 19. The combination of a rotatable platen, a traveling carriage therefor, and a movable support at the introductory side of said platenfor the rear end of a composite loop of multiple-ply work-web and carbons, the front end of the loop being connected with the platen, said support being stationary as the carriage travels and movable rearwardly to straighten out said Work-web to flat con dition throughout the length thereof from said platen to said support, whereby to facilitate shifting of the carbons from typed sections of said work-web to new sections thereof, flexiblesheets or tabs being secured at their rear ends to said movable support to carry said carbons at their forward ends 20. In a typewriting machine, the combination of a rotatable p'laten, a traveling carriage therefor, a releasable web-detaining clamp at the delivery side of the platen, and a swin-gable carbon-stripping frame at the introductory side of said platen for supporting the rear end of a composite loop of multiple ply work-web and carbons, said frame stationary as the carriage travels, the frontend of the loop extending beneath the platen, said frame being effective at the first portion of its rearward movement to withdraw said web and carbons simultaneously to a position in which the carbons emerge from beneath the platen while said clamp is released, and then being effective upon the last portion of its rearward movement to shift said carbons to new sections of the web, while the leading edge of the web is being detained by said clamp.

21. In a typewriting machine, the combination with a rotatable platen, of a traveling carriage therefor, and a frame detaehably mounted upon the lower portion of the framework of said machine and extending rearwardly and upwardly therefrom, said frame being stationary during the traveling of the carriage and having a support pivoted at a point adjacent the plane'of the upper portion of said machine, said support effective to support the rear end of a composite loop of loose multiple-ply work-web and interleaved carbons, the front end of the loop being connected with the platen,

I the support when thrown forwardly toward the machine being effective to establish the loop of loose web therebehind, so as to permit free carriage movements of the platen, and when swung rearwardly being effective to straighten out said loop in flat condition, whereby the carbons may be readily shifted from typed portions of the web to untyped portions thereof.

22. In a typewriting machine, the combination with a rotatable platen, a traveling carriage therefor, and an introductory paper-table, of a swingable frame pivoted upon the rear of the machine-framework at a point above the plane of the carriage, to be stationary while the carriage travels, said frame supporting the rear end of a multiple-ply work-web and interleaved carbons, the front end of the web being connected with the platen, said frame when thrown forwardly being effective to establish a loop of loose web behind the platen to permit free carriage movements thereof, and when thrown rcarwardly being effective to straighten said web and carbons in flat condition, and inclining said web upwardly and rearwardly in a plane above the upper surface of said introductory paper-table, so that said web is in flat condition from its point of connection with the platen to its point of support on said swingable frame, whereby said carbons may be easily shifted with respect to the work-web.

23. The combination with a typewriting machine having a platen, and a traveling carriage, of a swingable frame at the rear of the machine arranged to support the rear end of a multiple-ply work-web and interleaved carbons, the front end of said Web being connected with the platen, said frame stationary while the carriage travels and swingable forwardly to establish a loop behind the machine, and movable rearwar'dly to straighten said web and carbons to flat condition and mounted to incline the same upwardly and rearwardly of the machine when said frame is in its rear position;

24:- In a typewriting machine, the combination of a rotatable platen, a traveling carriage, a swingable carbon-stripping support at the rear of said machine for supporting the rear of a multiple-ply work-web and interleaved carbons, the front end of the web being connected with the platen, said support effective when thrown forwardly to establish a loop of loose web behind the machine for permitting free movement of the carriage, and also effective when thrown rearwardly to first'withdraw said web and carbons bodily rearwardly until the lower edges of the carbons are free of the platen, and also effective, upon moving the support to its extreme rear position, while the 1eading edge of said web is being retained, to straighten out the web in flat condition from its point of connection with the platen to its point of support upon said support, whereby to facilitate shifting of said carbons relatively to the Web, and means for limiting the forward and rearward movement of said support, the rearward limiting means determining the degree of shifting the carbons to bring them into register with new forms of the work-web to be typed upon.

25. In a typewriting machine, the combination of a rotatable platen, a traveling carriage therefor, a movable support at the in troduet-ory side of said platen for the rear end of a composite loop of multiple-ply work-web and interleaved carbons, the front end of the loop being connected with the platen, said support being stationary when the carriage travels and being movable rearwardly -to straighten out said work-Web in flat condition throughout the length thereof from said platen to said support, whereby to facilitate shifting of the carbons from a typed section of said work-web to a new section thereof, and gage means for determining the proper position for said carriage prior to shifting said carbons.

26. In a typewriting machine, the combination of a rotatable platen, a traveling carriage therefor, a movable support at the introductory side of said platen for the rear end of a compositeloop of multipleply work-web and interleaved carbons, the-'.

shifting the carbons.

BURNHAM C. STICKNEY.

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