US1132055A - Type-writing machine. - Google Patents

Description

L. A. WERNERY & J. A. B. SMITH.

TYPE WRITING MACHINE. APPLICATION FILED MAY 25, 1914.

Patented Mar. 16, 1915.

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L. A. WERNERY & J. A. B. SMITH.' TYPE WRITING MACHINE. APPLICATION FILED MAY 25, 1914.

Patented Mar. 16, 1915.

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L. A. WERNERY & *J. A. B. SMITH.

Patented Mar. 16,1915.

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LESTER A. VVZEIEtllTE'lEtY- AND JESSE A B. SMITH, OF NEW YORK, N. Y., ASSIGNORS I'd UNDERWOO D TYPEWRITER COMPANY, O

DELAWARE.

IE NEW YORK, N. Y., A CORPORATION OF Tyrawmme MAUI-ENE.

Specification of Letters Patent. v Patented Mar, 116 1915 Application-filed May 25, 1914. Serial N0. 840,672.

.chines, of which the following is a specification.

This invention relates principally to type-- writing mach nes for writing upon a number of superposed webs or continuous sheets, especially those which are intended to be torn off in sections from the body of the web, as, for example, when the webs comprise a series of printed forms, each adapted to be removed when the typewriting thereon is completed. In'such work it is desirable to employ ink ribbons or carbon sheets interleavedwith the webs for making the duplicate copies. In the use of such carbon sheets practical difficulties are encountered, especially in round-platen machines, in removing the carbon sheets from the portions of the webs that have been written upon, and shifting them to new positions for writing upon the succeeding portions of the webs. These diiiiculties are due partly to the fact that the webs have to pursue a tortuous course in passing through a round-platen machine, causing the carbons to be bound between the plies of web.

One feature of the present invention is the provision of practical means for releasing the carbons from the binding action of the webs thereon, and for withdrawing or pulling back the carbon or inking sheets, prior to the writing of the succeeding page or form, and bringing all the sheets into proper position to write thereon.

In carrying out certain features of our invention in one form, the round-platen type- I writing machine may comprise an auxiliary s'upport or carrier, attached to the-usual letter-feeding platen carriage to travel therewith, and extending rearwardly or backwardly therefrom. The carbon sheets or ink ribbons which are interleaved with the continuous webs may be attached} at their rear ends to a holder slidably mounted on said auxiliary carrier, to permit the car- -l)on sheetsto be fed forward around the platen. with the continuous webs, and to When the retract the carbon sheets or shift them rearwardly along the webs of paper into a new position, for writing the next page.

The platen is mounted on a swinging frame on the platen carriage, so that it may be lifted from the platen feed rolls and permit the webs and carbon sheets to be brought aboutto a straight line position, or at least to be sufliciently straightened out to release the frictionbetween the carbon sheets (or ribbons) and the webs, and to permit the carbon holder to be automatically retracted'by means of a spring. The swinging frame in which the platen is mounted may comprise a rock shaft journaled in the ends of the carriage frame and carrying rock arms in which the platen axle is jour naled.

In order to permit the platen to be rotated by the usual line-space mechanism or hand wheel, a platen rotating shaft, which in the present invention is separate from the platen axle, is journaled in the end ofthe carriage frame and provided with a linespace ratchet wheelfor control and operation by the usual spring detent, and the usual line-space lever and intermediate mechanism.- The rotation of said shaft is transmitted to the platen through a train of gears comprising gear wheels connected to the platen axle and the line-space wheel shaft respectively, and normally lying side by side, said gear whe'els both meshing with a pinion, which may be mounted on the rock shaftwhich forms the axis of the swinging platen frame. A permanent coupling or driving-connection is thus maintained between the line-space wheel and the platen, and the latter is permitted to be swung or displaced upwardly away from the pressure rolls, both to release the work sion thereof, is provided with an adjustable gage to which the forward ends of the webs are brought, in advancing the webs to position for writing upon a succeeding form. typewriting upon one form has been completed, the platen-swinging frame is swung upwardly by a handle thereon, thereby separating the platen from the work pieces and releasing the carbon sheets or ribbons, permitting the carbon holder to be drawn rearwardly under the influence of its operating spring, thereby shifting the carbon sheets back to a new position between the succeeding work-forms on the webs. The swinging of the frame to lift the platen also swings said paper shelf to a substantially horizontal position, in line with the carbon sheets and webs at the rear of the platen, thus assisting in freeing the carbon sheets. The operator may then grasp the ends of the webs and pull them forwardly to said gage. The platen is then swung down to writing position, and the completed forms may be severed by a knife blade, which may extend along the platen above the printing line, and which may be swung against the platen to permit the webs to'be severed.

The holder for the carbon sheets or ribbons when automatically retracted as above noted, may be brought to such position that the forward ends of the carbon sheets extend up beyondthe printing line to within a short distance of the line along which the workforms are severed.

Other features and advantages will hereinafter appear; and many features of this invention may be used for other purposes, and eitherseparately or in combination with others.

In the accompanying drawings, Figure 1 is a perspective view of our invention applied to an Underwood typewrlting mach ne, the parts being in position to permit writ ng upon a work-piece. Fig. 2 is a similar view showing the swinging frame thrown forward and the platen thereby lifted to release the webs and the carbon sheets. Fig. 3 is a fragmentary end elevation view showingthe platen in position for writ-mg. Fig. 4 1s a similar View but with the laten swung upward. At this figure the eed rolls are diagrammatically illustrated as swung down ward to an inoperative position in the usual manner. Figs. 5, 6, and 7 are diagrammatic views illustrating the method of removing a completed bill or other workpiece with its duplicates, and positioning a subsequent work-piece. Fig. 5 shows the normal posi tion of parts when the writing upon a bill or other work-form has been completed. Fig. 3 shows the platen'displacing frame swung forward to lift the platen, and the carbon sheets which have thereby been released moved rearwardly to a new position. Fig. 7

shows the platen-swinging frame swung back to return the platen to normal position, and the completed forms partly severed by the knife blade.

T he rotary platen 1 is carried by the usual carriage 2, which may be driven in letterfeed direction by the usual spring motor, and its letter-feed movement controlled by the usual mechanism, not shown. The carriage usually comprises a front bar 2 and a rear bar 2. Type-bars 3 operated in the usual way, swing upwardly and rearwardly against the front face of the platen. Each type-bar may carry two types, and the platen may be shiftable up and down to different writing positions in the manner usual in the Underwood machine. Front and rear feed rolls 4 and 5 which run on the under surface of the platen or work-pieces thereon, are mounted on shafts 6 supported in levers 7 journaled on a rod 8 forming part of the usual shiftable platen frame. Said feed rolls may be lifted from the platen by the usual finger key 9 connected through a link 10 to an arm on arock shaft 11 formed with flats or cam surfaces 12 which engage arms 13 of the levers 7.

The present invention is particularly usefui in connection with a series of continuous webs or strips of paper 14:, superposed and interleaved with carbon sheets or ribbons for making duplicate copies. The webs 1i may each consist of a continuous series of printed forms, and may be supported'on an auxiliary carrier or framework located behind the platen carriage 2 and connected to travel therewith. Said auxiliary carrier or frame work, as shown, comprises side rails 15 in the forin of channel irons extending in a substantially horizontal direction rearwardly from the carriage 2 perpendicular to the platen, said rails connected by tie- rods 16 and 19. The rod 16 is supported on arms 17. which, as shown, are secured to the bar of the carriage against which usually rests the rear face of an inclined paper table 18 at the rear of the platen, which table may form part of the usual case-shifting platen frame.

The auxiliary carrier may be supported at its outer end by a frame comprising side bars 20 rigidly connected at their forward ends to the machine frame 21, and at their rear ends-connected by a rail 22 on which runs a roller 23 mounted on a cross bar 2% 5 edges of the webs.

The invention is also useful with separate superposed webs; and either the superposed separate webs or the fan-folded webs may be conveniently supplied from one or more spools or rolls, as 25. In order to duplicate the typewritten matter on the several wehs or plies 14. duplicating material, such as ribbons or carbon sheets 27, is provided, said sheets being interleaved with the webs 14, and connected to a carrier or shifter in the form of a truck 28 mounted to travel on the rails 15 toward and from the platen. The truck 28 comprises a sheet metal body 29, which may also form a support for the Webs, and ends 30, which carry rolls 31, running in the channel rails 15.

Holding bars or fingers 32 for the carbon sheets 27 are seated in the ends 30 of the carrier and removably secured in position by thumb screws 33. Each bar or finger 32 extends nearly across the frame, the free end of the bar permitting the carbon or inking sheet to be readily placed thereon or removed, such sheet being preferably provided with a loop at one end to slip over the supporting bar 32. These bars or fingers may be connected alternately to the opposite ends 30, as desirable to permit the carbon sheets to be slipped between adjacent plies of web 14 when said web is formed of a single fan-folded sheet. The bars 32- are separated, preferably by being stepped, as indicated, to properly space the carbon sheet holding fingers one above another, for introduction between separate plies of the fan-folded Web, and said bars or fingers are also preferably arranged one behind another, for clearance. and consequent convenience in attaching the inking sheets separately thereto. The webs 14 may be spaced and guided at the rear end of the carriage by fingers 34 adjustably attached to the rails 15. Gages 35 for the side edges of the webs 14, and forming part of the web course at the introductory side of the .machine, may be adjustably secured to a bar 36 connecting the ends of the rails 15, said gages being adjustable along said bar to accommodate webs of different widths.

During the typewriting operation of the machine, the carbon sheets which extend forward between the platen and feed rolls,

are fed forward with the webs, the carbon holder 28 being pulled forward along the guide rails 15 as the webs are advanced.

In order to automatically return the holder or shifter 28 when the carbon sheets are released by separating the platen and feed rolls, as hereinafter described, a spring motor 37 is connected through a band 38 to the holder 28. The band 38 is connected at one end to the carbon holder and extends therefrom to and around a pulley 39, yvhich may be supported on the rail'36, and from said pulley the band extends forward to a drum 40 of the motor 37. Said drum is mounted to rotate on a shaft 41, which is journaled in arms 42 depending from the tie-rod 16. The drum 40 is always under tension, provided by coil springs 43 each connected at one end tothe drum and at the other end to the shaft 41. Said shaft is held against rotation by a ratchet wheel and pawl 44, 45, the ratchet wheel being fixed to the shaft. A hand crank 46 permits the shaft to be rotated to adjust the tension of the springs 43.

Thenthe carbon sheets are released from the platen and feed rolls, the drum 40, under the tension of the springs 43, rotates to wind the band 38- thereon and draws the carbon sheet holder 28 rearwardly to the outer end of the rails 15, thereby shifting the carbon sheets back to a fresh page or portion of the webs 14.

The platen 1 is mounted for upward displacement in a swinging sub-frame comprising arms 47 in which the platen axle 48 is journaled, said arms being fixed to a rock shaft 49 journaled in the ends of the shiftable platen frame 18 which is mounted on the paper carriage 2, so that the platen may be swung upward away from the feed rolls 4 and 5, and above the front and rear bars 2 and 67, between which the platen normally is sunken, in order to permit the opening out of the web, which runs into the machine about horizontally along a course comprising parts 34, 35, 32, 28, and 67, thence tortuously down around the platen and upwardly therefrom, whereby the inking sheets are normally clamped or bound between the plies of web. The pressure rolls 4, 5 also tend to lock the inking sheets to the web.

In order to rotate the platen either by the line-space mechanism or a hand wheel 50, a platen-rotating shaft 51, which isseparate from the axle 48 but which may normally be in line therewith, is journaled in the platen frame end 52, and drives the platen through a train of gears comprising 'a gear wheel 53 fixed to the shaft 51, and a gear wheel 54 fixed to the platen axle 48, said gear wheels both running inmesh with a pinion 55, which is journaled on the rock 'wardly inclined position (Fig. 3) and is locked in such position, together with frame 47, 49, by a sprng latch 60, which engages a holding pin 61 on the arm 58.

The platen-displacement frame also comprises a web-supporting and guiding shelf 62whic'h may be rigidly secured to the arms 47, and normally extends upwardly and 'rearwardly from the delivery side of the platen. A bar 63 forming an extension of the shelf 62, and supporting and guiding the leading ends of the webs as they are advanced, also forms a support for an adjustable gage 64, the latter secured to the bar 63 at anypoint by a. clamping screw 65. Gages 66 for the side edges of'the webs are slidably' mounted on the shelf 62 and .are frictionally held in any position to which they may be adjusted longitudinally of the shelf.

In operation, the webs 14 are guided-between the fingers 34 and gages 35 and extend forward over the carbon holder 28 and are guided over bar or roller 67 at the upper end of the paper table 18 and from thence extend downward between the platen and feed rolls, thence upward over the front face of the platen past the printing-line and I over the shelf 62. As the typewrlting protween 2, 67, to the Fig. 6 position, above.

2*, 67. The'shelf 62 may now be substan tially horizontal and approximately in line .with the'portions of the webs behind the platen.

Thus the web is opened out, for

convenience in manipulating and adjusting,

and for releasing "the ink sheets. When the handle 59 is swung forward, the ends of the v webs 14 are grasped by the operator and pulled forward to the gage'64,- where they may be gripped between the operators .thumb'and the bar 63. As the platen is lifted to the Fig. 6 position, the carbon sheets,

which up to this moment have been held between the platen and feed rolls, are released and the spring-drum 4O permitted to rotate and draw the carbon sheets rearwardly, as heretofore explained, to the Fig. 6 position.

' It will be observed that in the'Fig. 6 position, the webs being in a substantially v straight line, will not bind on the carbon sheets or hinder their withdrawal. The

platen-displacement frame may then be returned to the Fig. 7 position, and the webs 14 and the carbon sheetslagain gripped between the platen and feed rolls, ready for writing upon the succeeding form. The

bills or work-forms which have just been completed are now severed by means of a tearing blade 68, extending along the upper surface of the platen and mounted on a rod 69 (which may be a sleeve on the shaft 49) to be swung downward against the webs by means of a finger-piece 70, said blade being returned by a spring 71. In Fig. 7 the blade is shown in tearing position, and the webs partially severed.

It will be noted that, as shown in Figs. 5 and 7, the carbon sheets do not extend to the ends of the webs 14, so that the operator may grasp the webs without holding the carbon sheets or interfering with their automatic retraction. The carbon sheets,

however, are of sufficient length to extend upwardbeyond the printing line when the platen has been returned.

As the platen frame is returned from the Fig. 6 to Fig. 7 position the webs 14 are curved over the platen surface and hug the platen so that the ends of the carbon sheets are gripped between the webs and carried .with the platen, as the latter rolls back to printing position. When the feed rolls l and 5 are moved ofi the platen by depressing the finger-piece 9, the platen s held from dropping below. normal pos t on by the latch 60. A stop pin 72 at the right hand end of the swinging platen frame m the path of said frame forms a rigid stop for the right-hand end of the platen-to prevent it from dropping below normal position.

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

Having thus described our invention, we

. claim 1. In a typewriting machine, the combination with a roller platen and feed rolls relatively movable into and out of position to clamp superposed plies ofa longitudinally folded web for feeding sa d pl es over the platen, of a holder for mamfolding ma terial, said holder supported at one end and having its other end inserted between said plies, said holder movable longitudinally of 'the plies to change the position of the manifolding material when the rolls are separated.

2. In a typewriting machine, the combination with a roller platen and feed rolls relatively movable into and out of position platen and feed to clamp longitudinal folds of a fan-folded web for feeding them over the platen. of a .holder to which is directly attached mani-' folding material interleaved between the folds of said web, said holder being mounted to be drawn along by the manifolding material as the latter feeds around the platen, and means to automatically move the said holder longitudinally of the web when the platen and feed rolls are separated.

3. In a typewriting machine. the combination with a platen and feed rolls for feedmg superposed plies of a longitudinally fanfolded web over the platen, means for boldmg separate carbon sheets interleaved between the said plies, said holding meanslso platen movable to permit the carbon sheets to befed forward with the plies of web, and means to automatically return the holding means when the platen and feed rolls are separated.

4. In a typewriting machine, the combination with a roller platen, of means for feeding superposed plies of a longitudinally fan-folded web over the platen, a holder to which are directly attached carbonsheets interposed between the several plies, one carbon in each fold, and a traveling or moving support on which said holder is mount- ,ed for movement longitudinally of the plies of web, to shift the to the plies.

In a typewriting machine, the combination with a traveling carriage and a roller platen mounted thereon, of means cooperating with-the platen to feed webs over the carbon sheets relatively platen, an auxiliary carriage traveling with said first-named carriage, and a' carbon sheet holder to support carbon sheets between the said webs, said holder mounted on' the auxiliary carriage to travel thereon in a direction perpendicular to the axis of the platen.

6. In a typewriting machine, the combination with a traveling carriage anda roller platen mounted thereon, of means cooperating with the platen to feed webs over the platen, an auxiliary carriage traveling with said first-named carriage, a carbon sheet holder to support carbon sheets between the said webs, said holder mounted on the auxiliary carriage to travel thereon in a direction perpendicular to the axis of the platen, said platen movable into position to release the webs thereon, and means to automatically move the carbon sheet holder away from the platen when said webs are released.

7. The combination with a revoluble platen and means for guiding superposed webs or plies with interleaved carbons into the machine and around the platen such that the normal course of the plies of web is tortuous, of means operable at any rotative position of the platen for raising the platen sufficiently to relieve the carbons of binding action and afforda clear path for direct advance of the web in substantially flat con dition. V

8. The combination with a revoluble platen, of a platen frame having in rear of the a horizontal transverse guide for an entering assemblage of webs, said guide being at a high elevation, so that the webs bend down over the guide to run downwardly to the platen, means for pressing the webs against the platen and feeding the webs forward around the underside and up in front of the platen, and means for raising the platen away from said pressing means to a point about as high as said guide, to afford a clear path for advance-of the webs in normal condition over said guide and under said platen.

9. The combination with a revoluble platen and a platen frame, of means to guide the work around the under side of the platen, means for raising the platen relatively to the platen frame and said guiding means, to release the work, and a holder in rear of the platen and having means to hold interleaved inking or impression sheets and mounted to move forwardly and rearyvardly, for withdrawing the interleaved sheets when released. 7

10. The combination with a revoluble platen having an axle, and a platen frame, of feeding devices to press the work against the platen, said frame and movable relatively thereto, to lift said platen away from said feeding devices and above said platen frame; said platen-carrier mounted on said frame eccentrically of the platen axle and having arms extending to said axle to carry the same.

IL The combination with a revoluble platen and a platen frame, of means for lifting said platen relatively to said frame, and a platen rotating mechanism mounted on the platen frame and connected to said platen to rotate the same in either normal or elevated position.

12. The combination with a revoluble, platen and a platen frame, said platen being bodily movable relatively to said frame, of means mounted on the frame permanently connected to the platen for rotating the latter when in normal position.

13. The combination with a revoluble platen, of a platen frame, and a platen rotating device mounted on said frame, said platen being liftable or bodily movable relatively to said frame and said rotating device, and a connection'being provided between said platen andsaid rotatable device to enable the latter to be effective when the platen is in normal position in said frame.

14. The combination with a revoluble platen and a platen frame, of a platen rotating device mounted on said frame, a device hinged upon said' platen frame and carrying movably said platen up and down relatively to said platen frame and said rotating device, and a connection from said rotating device to said platen, including a device arranged at the hinge on said platen raising means, to be effective in both the raised and lowered positions of the platen.

15. The combination with a revoluble platen and a platen frame, of means mountedon said platen frame for rotating said platen, means hinged on said platen frame for carrying said platen up and down relatively to said platen-frame and said rotating means, a gearon said rotating means, a pinion mounted co-axially with the hinge of the platen raising means, and a gear on and a platen-carrier mounted on the platen to connect with said pinion, whereby when'the platen is raised, it remains connected to said rotating device.

16. The combination of a typewriter letter-feeding carriage and a revoluble platen thereon, said carriage having a rearward sheet supporting extension, a carrier mounted on said letter-feeding carriage to connect to interleaved carbon or inking sheets to draw the same rearwardly, said platen being liftable relatively to said letter-feeding carriage to permit the work-sheets to be straightened out preparatory to drawing back the interleaved carbon or inking sheets.

17. The combination of a typewriter letter-feeding carriage, a revoluble platen thereon, said carriage having arearward sheet supporting extension, a carrier also mounted on said letter-feeding carriage to connect to interleaved carbon .or. lnkmg sheets to draw the same rearwardly, and sheet feeding means to bear against said platen, said carrier mounted to yield as the work-sheets are fed forward by the cooperation' of the platen and the sheet feeding means, said platen being liftable away from said sheet feeding means to permit the work-sheets to be" straightened out preparatory to the rearward movement of said carrier to draw back the interleaved carbon or inking sheets.

18. The combination of a typewriter letter-feeding carriage, a revoluble platen thereon, said carriage having a rearward sheet supporting extension, a carrier also mounted on said letter-feeding carriage to connect to interleaved carbon or inking sheets to draw the same rearwardly, sheet feeding means to bear against said platen, said carrier mounted to yield as the worksheets are fed forward by the cooperation of the platen and the sheet feeding means, said platen being liftable away from said sheet feeding means to permit the worksheets to be straightened out preparatory to the rearward movement of said carrier to draw back the interleaved carbon or inking sheets, and means mounted on said carriage for revolving said platen when the latter is in normal position.

19. The combination of a-typewriter letter-feeding carriage, a revoluble platen thereon. said carriage having a rearward sheet supporting extension, a carrier also mounted on said letter-feeding carriage to connect to interleaved carbon or inking sheets to draw the same rearwardly, sheet feeding means to bear againfi said platen, said carrier mounted to yield as the worksheets are fed forward by the cooperation of the platen and the sheet feeding means, said platen being liftable away from said sheet feeding means to release the sheets to permit them to be straightened out preparatory to the rearward movement of said carrier to draw back the interleaved carbon or'inking sheets, means mounted on said carriage for revolving said platen when the latter is in normal position, and means to engage the leading edge of the written sheet, for gaging the leading edge of the unwritten worksheet relatively to the printing line on the said carrier mounted to yield as the worksheets are fed forward by the cooperation of the platen and the sheet feeding means, said platen being liftable away from said sheet feeding means to release the sheets to permit them to be straightened out preparatory to the rearward movement of said carrier to draw back the interleaved carbon or inking sheets, means mounted on said carriage for revolving said platen when the latter is in normal position, means to engage the leading edge of the written sheet for gaging the leading edge of the unwritten work-sheet relatively to the printing line on the platen, while the sheets are so released, and a knife edge mounted in position for tearing off the written work-sheet when the same has been gaged and after the interleaved carbon or inking sheets have been pulled back.

21. In a typewriting machine, the combination with a letter-feeding carriage, of a revoluble platen thereon, meansto bear upon the platen to advance the work-sheets, a carrier mounted on said carriage to be at tached to the rear edges of the interleaved carbon or inking sheets and mounted to yield forwardly as the sheets are advanced around the platen, and roll carrying means also mounted upon said carriage.

22. The combination with a revoluble platen and feed rolls to run thereon, of a carrier to connect to the rear ends of interleaved carbon or inking sheets to yield as the work-sheets are advanced forwardly around the platen, said carrier movable to pull the work-sheets back after separation is effected between the feed rolls and theplaten, and means for carrying a rollor web of work paper.

23. In a typewriting machine, the combination with means for feeding superposed work-pieces, of a holder for interleaved carbon or inking sheets movable with the work-f pieces, said holder comprising sheet holding bars each connected-to one side ofthe 24. In a typewriting machine, the combi nation with means for feeding super osed pieees and comprising sheet-holding bars arranged in stepped relation carbon sheets and work-pieces.

26. In a typewriting machine, the'eo'lnbl nation with a platen and means for feeding webs over the platen, of a single carrier for carrying a series of carbon or inking sheets arranged alternately with plies of web, said carrier movable to permit the carbon sheets to be fed forward with the webs, and a motor operable to return said carrier, and thereby bring the carbon sheets to a new position between the webs.

27. In a. typewriting machine, the combination with a platen and means for feeding Web's over the platen, of a carrier for carbon or inking sheets movable to permit the 'car bon sheets to be fed forward with the Webs, a drdin, a band wound on said drum and to space the connected to said carrier, said drum rotatable to unwindand pay out the band as the carbon carrier "moves forward, and a spring to automatically rewind the drum and return the said holder when the carbon sheets are released from the web feeding means.

28. In a 'typewriting machine, the combination with means for r'eleasably engaging work-pieces and feeding them forward, of a carrier for carbon or inking sheets, said carrier mounted to travel with the work-pieces as the iatt'er are fed forward, a winding drum, a shaft on which said drum is mounted for rotation, a band having one end wound on said drum and its other end connected to said carrier, a spring connected at its ends to said drum and shaft respectively for rotating the drum, and a pawl-andratchet device for rotating said shaft, and

thereby adjusting the tensionof the spring.:

29. In a typewriting machine, the ce'mbi nationwith a carriage, of a roller platen, feed rolls to bear against the platen, a swinging frame mounted on the carriage, and comprising a pair of swinging arms, said platen j'ournaled on the free ends of said arms, means to swing said frame and lift the platen from thefeed rolls at any rotative position of the platen, and a latch for holding the swinging frame in normal position with the platen against the feed rolls.

30. In a typewriting' machine, the combination with a carriage, of a roller platen,

feed rolls to bear against the platen, a swing: ing frame mounted on the carriage, and comprising a pair of swinging arms, said platen, jonrnaled on the free ends of said arms, means to swing said frame and lift the platen from the feed rolls at any rotative position of the platen, a latch for holding the swinging frame in normal position with the platen against the feed rolls, said latch formed to lock the swinging frame against movement in either direction from normal position, and means to separate the feed rolls from the platen While the latter is in normal position.

3i. In a typewriting machine, the combination with a roller platen movable bodily from normal position up to abnormal position, 'of a support for work-sheets or webs fed over the platen, said support mounted to swing forwardly and downwardly as the platen moves up, and a gage for the leading edges of the work-sheets, said gage carried by thefsnpport and adjustable thereon, to gage the sheets when the platen and support are inabnorinal positions.

32. In a typewriting machine, the combination with a carriage, of a swinging frame thereon, a roller platen mounted in said frame, feed rolls-located below the platen,

.said frame comprising a shelf for supporting 'webs of ap'er fed over the platen, said shelf no a 1y extending upwardly and rearwardly beyond the upper surface of the platen, a bar forming an extension of said shelf, a gage adjustable along said bar, a handle to swing said frame to lift the platen from the feed rolls and move the said shelf forward to a substantially horizontal position, and means at the rear of. the platen for supporting work-pieces in position to be drawn into a substantially straight line when their leading ends are moved with said shelf to a horizontal position, to permit the withdrawal of carbon or inking sheetsto a new position. v

33. In a typewriting machine, the combination with a roller platen, of feed rolls running thereon for feeding work-pieces around the platen, a carrier for carbon sheets interleaved between the work-pieces, and means for simultaneously separating the platen and feed rolls and straightening the Work-pieces to permit the carbon sheets to be moved along said work-pieces to a new position.

34. The combination with a revoluble platen, of a platen frame having in rear of the platen a horizontal transverse guide for an entering assemblage of webs, said guide being at a higher elevation than the bottom of the'platen, so that the Webs bend down over the guide to run down to the platen, and a platen-carrier mounted on said platen frame and movable to lift said platen to a higher elevation than said guide.

35. The combination with a revoluble' platen and aframe on which it is carried, of a platen rotator mountedon said frame; said platen being mounted for bodily displacement relatively to said frame and away from said rotator, and platen-driving means permanently coupling said platen to said rotator and including a member'capable of bodily displacement at the displacement of said platen.

36. The combination with a revoluble platen, of a frame on which it is carried, a platen rotator mounted on said frame, a second frame mounted on the first and connected to said platen to afiord bodily displacement of the latter from normal position in a direction transverse to the platen axis, and a coupling train extending from said platen to said rotator, and including a part movable to accommodate the displacement of the platen. v

37. A typewriting machine comprising, in combination, a revoluble rotator, a revoluble platen mounted for bodily displacement relatively to said rotator in a direction transverse to the platen axis, and a coupling train extending from said rotator to said platen and including members relatively movable to accommodate the displacement. of the platen.

' 38. The combination, with a revoluble platen, and means to cooperate with the platen to feed the work around the platen, of a rotator, said platen mounted for bodily displacement away from said work-feeding means and said rotator, and a device permanently coupling said rotator to said.

platen in a manner to permit such displacement of the platen.

39. The combination of a revoluble platen, means to cooperate with the underside of the platen to feed the work around the platen, a rotator, said platen mounted for bodily displacement upward away from said work-feeding means and said rotator at any line-space position of theplaten, and connecting means between said rotator and said platen, including a portion brought to an abnormal osition when said platen is'so displaced, and restored to normal position at the return of the platen to normal position.

40. The combination of a revoluble platen, a main platen frame, a rotator mounted on said main frame, a second frame mounted on the first and connected to the platen to afford bodily displacement of said platen away from said rotator at any line-space position of the platen, connecting means between said rotator and platen, including a portion brought to an abnormal position when said. platen is so displaced, and restored to normal position at the return of the platen to normal. position, and releasable means to lock said frames together with the platen in normal position.

nected to the driver, a gear connected to the I platen, and a pinion concentric with the axis of said swinging movement and meshing with both said gears.

43. A typewriting machine comprising, in combination, means for superposed webs and carbon sheets into the machine, a revoluble platen around which the superposed webs and carbons advance, said guid ing means and said platen arranged so that the webs pursue a normal tortuous course which causes the carbon sheets to be bound between the webs, shiftable means for altering the course of the webs in a manner to release the carbon sheets from such interbinding action, and means for shifting the released carbon sheets back to new positions along the webs. I

44. A typewriting machine comprising a revoluble' platen and having an introductory web-course extending rearwardly from the platen over the back of the machine, means for feeding superposed webs up around the front of the platen, ashifter for an interleaved inking sheet, said shifter mounted for movement forwardly and backwardly in rear of the platen, and means for effecting suflicient straightening of the portions of so I the webs forward of said shifter, to permit 45. A typewritin machine comprising a revoluble platen an having an introductory web-course extending rearwardly from the platen over the back of the machine, webfeeding means to cooperate with the underside of the platen, and a shifter in rear of said platen for an interleaved inking sheet, said shifter mounted for forward and backward movement, and said platen being mounted for an upward movement both to release the webs and inking sheet from said feeding means and also to relieve the interbinding action of the webs and inking sheet, thereby to permit a ready shifting of the inkin sheet back preparatory to the writing 0 a fresh page or portion.

' 46. A typewritingmachine comprising a course extending rearwardly from the v platen over the back of the machine, the

aieaoee platen in such a manner that the path of'the entering web isfirst about horizontal and then downward to the platen and then upward aroundthe front of the platen; said platen being mounted for an upward displacement sufficiently to permit the substantial straightening of the forward portion of the web into agreement with the rear portion, so that portions may lie about hori-.

zontally in the machine in a continuous-substantially flat condition.

48. A typewriting machine comprising a revolubleplaten and having an introduc tory web course extending rearwardly from the platen in such a manner that the path of the entering web is first about horizon-v tal and then downward to the platen and then upward around the front of the platen; said;- platen being mounted for an upward displacement sufficiently to permitthe substantial straightening of the forward portion of the web into agreement with the rear" portion, so that porso tions may lie about horizontally in the 5% bination with a revoluble platen and awork support at the introductory side of. theplaten, of means at the introductory side of machine in a. continuous substantially fiat condition, and 'means' for shifting rearwardly an inking sheet interleaved between superposed webs.-

49. In a typewriting machine, the combination with arevoluble platen. and awork support. at the introductory sideof the- ,platen, ofmeans. for displacing-the platen upwardly and simultaneously swinging downwardly and-forwardly the portion-of the-work at-tliedelivery side of the'platen, to-open out the work for facilitating readjustment or manipulation thereof;-

50. In atypewriting machine,- the comthe. platen for shifting. an-inking sheet inhination witha revoluble-platen, ofa frame on' which said platen is supported, said terleaved betweenplies of work, andmeans for displacingv the platen. upwardly and simultaneously swinging downwardly and forwardly the portion ofthe workrat the delivery side of the platen relatively. tothe portion of thework at the introductory side of theplaten.

51. In atypewritingmachine,- the oonr frame comprising front and rear liars bewh-ichthe platen is mar-anally sunken,

and means to afford an: upward displacement of the platen above said bars, to permit the work to lie uponsaid bars in a substantially flat condition.

52. In a typewriting machine, the 'combination with a revoluble platen, of a letterfeeding carriage frame on which said platen is supported, said carriage frame comprising front and rear bars between which the platen normally is sunken, a carrier extending rearwardly from said carriage and over which a web runs into the machine, and means to displace the platen to an elevated position, to permit the web extending over said carrier and said bars to lie in substantially flat condition.

53. In a typewriting machine, the combination with a revoluble platen, of a let tor-feeding carriage frame on which said platen is supported, said-carriage frame comprising front and rear bars between which the platen normally is sunken, a carrier extending rearwardly from said carriage and over which a web runs into the machine, means to displace the platen to an elevated position, to permit the web extending over said carrier and said bars to lie in substantially flat condition, and means at said carrier to shift backwardly an inking sheet lying between the plies of web.

54:. In a typewriting machine, the com bination with a revoluble platen around which the work feeds, and a work support at the introductory side of the platen, of a platen rotator, means for displacing the platen upwardly relatively to said rotator, to permit substantial opening out of the work, for facilitating readjustment or manipulation thereof, and a device permanently coupling. said rotator to said platen and including a part movable to accommodate the displacement of the platen.

55. In-a-typewriting machine, the combination with a revoluble platen around which the work feeds, of a device at the introductory side of the platen for shifting an interleaved inking sheet, a platen rotator, means for displacing the platen relatively to said rotator and to a position at which the bindingof the plies of work upon the inking sheet is relieved, and a device permanently coupling said rotator to said platen and including apart movable to accommodate the displacement of the platen.

ffli

'56. The combination with a revoluble gp platen around which the work feeds, said platen displaceable from normal position to permit the work to be opened out, of a shifter mounted atthe introductory side of the platen; and having separated means to i 57..The combination with a revoluble platen around which the work feeds, said platen displaceable from normal position to permit the work to be opened out, of a shifter mounted at the introductory side of the platen, and having separated means tocarry a plurality of carbon or inking sheets interposed between different plies of the work, means upon which said shifter is mounted for bodily movement toward .and

from the platen, a platen rotator, and a device permanently coupling said rotator to said platen and including a member movable to accommodate the displacement of the platen.-

58. A typewriting machine provided with a revoluble platen around which the work Y feeds, and having a web-course at the introp the web, a truck mounted 'ductory side of the platen, means to dis-' place the platen to permit o ening out of or movement along said course toward and from the platen, and separated carriers on said truck for shifting or carbon sheets interleaved between 'di erent plies of web.

59. A typewriting machine provided with a revoluble platen around which the work feeds, and having a web-course at the intro- 'ductory-side of the platen, means to displace the platen to permit opening out of the web,

a truck mounted for movement along said course toward and from the platen, separated carriers on said truck for shifting inking ,orcarbon sheets interleaved between different plies of web, and a spring for propelling said truck away from said platen.

60. In a typewritingmachine, the combi- T nation of a revoluble platen around whichv the work feeds, a frame on which said platen work feeds, the combination with means to displace'the platen to permit openin out of the'work, o a shifter at the in'tr interleaved inking or carbon sheets when the platen is displaced, said shifter coinpris ling fingers to which the inking sheets may be attached, said fingers oppositely pointing. and separated for introduction between alternate plies of alongitudinally folded work web.

62. In a typewriting machine having a revoluble platen around the under and front sides of which the work feeds, and provided with .a web course running rearwardly from the i introductory side of said platen, the

uctoryside of the platen for shifting backwardlycombination of 'a frame connected to said platen to displace it upwardly, and a paperthe introductory side of. said platen, the

combination of a frame connected to said platen to displace it upwardly, a paper-support extending from the delivery side of the platen and connected to said frame to swing the forward portion of the work downwardly and forwardly, whereby the work is opened out, and means on said delivery paper-support for gaging the side and leading edges of the web. 64. In a typewriting machine, the combination with a revoluble platen around the under and front sides of which the work feeds, of a paper-support provided with an adjustable gage for the leading edge of the work and extending from the delivery side of the platen, and means for simultaneously displacing said platen upwardly and swinging said paper-support and gage forwardly and downwardly.

65. In a typewriting-machine, the com bination of a revoluble platen around the under and front sides of which the work feeds, a paper-support provided with side gages for the work and extending from the delivery side of the platen, and means for simultaneously displacing said platen upwardly -and swinging said paper-support forwardly and downwardly. Y

66. .In a typewriting machine, the combination of a revoluble platen around [the under and front sides of which the work I feeds, a paper-support provided with side gages for the work and extending from-- the delivery side of the platen, and means for simultaneously displacing said platen upwardly and swinging said paper-support forwardly and downwardly, said paper-support also provided witha gage for the leading edged. the work.

, 67. The combination with a revoluble I platen and a-frame whereon it is carried,'of

a second frame mountedfor movement upon the first frame 'and'connected to said platen to displace it upwardly, a work-support extending from the delivery side of the platen and connected to said second frame to swing downwardly and forwardly, and a gage for the leading edge of the work, said gage com nected to said work-support, whereby, when "the platen is swung up, the work-support with the gage is swung downwardly and forwardly and the work is opened out to permit the leading edge of the work to be msaote drawn to said gage preparatory to writing on the next portion of the work.

68. The combination i with a revoluble wardl and forwardly and the work is 15 open out, to permit the leading edge of the work to be drawn to said gage preparatory' to writing on the next portion of the work, and a knife edge for tearing oil the written portion of the work, said knife edge 2o cooperating with said gage to determine the length of the portion to be torn ofi.

LESTER A. WERNERY. JESSE A. B. SMITH.

Witnesses:

W. O. WESTPHAL, Trros H. IRONS.

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