US1757269A - Typewriting machine - Google Patents

Description

y 930. B. c. STICKNEY 1,757,269

TYPEWRITING MACHINE Original Filed May 13, 1925 3 Sheets-Sheet 2 May 6', 1930.

" B. C. STICKNEY TYPEWRITING MACHINE Original Filed May 13, 1925 3 Sheets-Sheet 3 #wemar Patented May 6, 1930 STATES PATENT OFFICE BURNHAM O. STICKNEY, 0F HILLSIDE, NEW JERSEY, ASSIGNOR 'IO UNDERWOOD ELLIOTT FISHER COMPANY, OF NEW YORK LL- Y., A CORPORATION OF DELAWARE 'IYIPEWRI'III'N'G- MACHINE Application filed May 13, 1925, Serial No. 29,873. Renewed November 2'7, 1928.

This invention relates to machines for typing upon multiple-ply Work-webs, which may be either longitudinally folded or in the form of loose plies interleaved with carbon-sheets, in which it is necessary to effect shifting or stripping of the'carbons relatively to the plies of work-web'at the completion of the typing of each form, preparatory to severing the web and typing the next form.

Usually a fixed length of carbon-paper is successively presented to new forms until worn out. After the typing of a form, it is usual first to lift the platen bodily to release the web therefrom and to release the carbons for their shift; then to shift one form-length rearward, a carbon-carrier with the carbons attached thereto, while holding the work- Webs; and then to reset the composite web for commencement of typing on the next form and to replace the platen.

It is an object of the invention to produce a simple, inexpensive and easily operable machine of this kind, in which it is unnecessary to displace the platen upwardly at the carbon-stripping operation.

The composite work-web is presented bot tom end first to the front of the platen, and is introduced downwardly and rearwardl under the'platen, the bottom form on the we being typed, then the next form above, and so on.

The bottom endof the web ma be initially introduced down around the out of the platen by the aid of the device shown in the Smith Patent No. 1,402,804, of January 10,

' 1922; but thereafterthe web remains always in place around the platen until the web is used up, it being rendered unnecessary to disengage the webfromthe platen for carbonstripping purposes, and it being further rendered unnecessary to provide a flexible backing or device for carrying the composite web around the platen; the web being simply held against the platen by feed-rolls of the usual type, which have suiiicient power to carry out the backward and forward web feeding or adjusting operations hereinafter called for.

The carbon-sheets; which are placed or loaded between the work-web plies, are held at their upper ends by means of aset of blades,

which may be of the usualindividual construction, and the set of blades may form part of a carrier which is held stationary during the carbon-stripping operation, that is, while the work-webs are pulled downwardly by the act of revolving the platen backwardly; the rolls acting upon the lowermost form. At the initial introduction of the web into the machine, this bottom form need not be t ed, but may be used merely as a tab, to ai in manipulating the composite web. The platen is thus revolved backwardly until the first line on the second form is in position to be typed. During such backward rotation, both the work-webs and the carbons feed backwardly around the platen. This composite web pulls down the carbon-carrier, which is mounted upon forwardly and downwardly swinging arms. Adight returning spring upon the carbon-carrier holds the web taut upon the platen.

The composite web having thus been introduced by using the bottommost form thereof as a tab for this purpose, and the web having then been brought to typin position by revolving the platen backwar ly, the first form is typed; and during this operation the web is advanced line by line, by means of the usual line-spacing mechanism of the typewriter. This operation proceeds until the form is completely typed.

The next step is to effect the stripping of the carbons, and preparatory to this step the platen is advanced a little, until the lower ends of the carbons are clear from the platen, so that they extend in a straight line from top to bottom; this straight condition being desirable for easy stripping or relative shifting between the carbons and work-web.

Just before stripping the carbons, the carbon-carrier is locked against movement; and the stripping consists in drawing downwardly the web-plies by the co-operation of the platen and the feed-rolls that run there on. For this purpose the platen is revolved backwardly to the extent of one form; the operator being able to see the bottom edges ofthe carbons-through the outer web-form, and therefore to note atwhat point to stop Then the operator unlocks the carbon-carrier, permitting it to swing, and also clamps the work-web to the carbon-carrier so that both the work-web and the carbons will par- 5 take of further downward movement. This further movement of the composite web 1s effected by the continued backward rotation of the platen, which is not stopped until the next form of the web is in position to have the first line typed thereon.

Before the web reaches the position for typing the second form thereon, the form at the bottom of the web is severed. The first form to be severed in this way is untyped,

' as already explained. After the web-severup to its extreme position, and is there locked at which time the carbons and the web interleaved thereby are in straight condition, this being preparatory to the next stripping operation.

which is severed is the one which was first typed; there always remaining in the machine thereafter one typed form, which is used as a spare form for the pur ose of aiding in the manipulation of the we and carbons in the manner stated.

The severing knife is mounted at the rear of the platen to sever the typed web without necessitating the withdrawing of the web from the platen.

Another feature relates to means for simultaneously locking the carbon-holders and for releasing a clamping member normally holding the web in registration with the carbons.

gauge indicating the cutting-01f position of the printed web.

Other features and advantages will here- In the next cycle of operations, the form Still another feature relates to a novel elevation, showing the web-clamp in its efiective position.

Figure 5 is a diagrammatic side v1ew,-1n elevation, showing the work-web in cuttingoif position.

Figure 6 is 9, dia rammatic side view,..in elevation, showing t e knife in its operated position.

Figure 7 is a cross-sectional view, in eleva- ,tion, showing the work-web in its typing Then the web is interleaved with sheets of carbon 14 and the leading edge of the web is inserted at the front of a platen 15 which is backwardly rotated to feed the web to a position shown in Figure 1 by the co-operative'action of feed-rolls 16.

[he sheets of carbon are fastened to the movable table 12 by means of individual car-- bon-holding blades 17 and the table is held in a position as shown in Figure 1 by means of a lock 18. The function of said lock is to hold the table against displacement and to release a clamp 19 normally holding the work-web against the movable table or carrier 12.

The lock 18 is then released and held in a position shown in Figure 4 by means of a holding spring 20 fast to the lock 18 and engaging with a pin 21 fast to a supporting bracket 22,

upon which the lock 18 is pivotally mounted at 23. Having released the lock, the table or carrier 1s free to swing forwardly and the platen is rotated by means of a handle 24 fast to the platen-axle 25, tothus position the work-sheet relatively to the printing point, in which p'osition'the first line of typing is written upon the sheet by operating type-bars 26. Upon releasing the lock 18, the clamp 19 is actuated by a spring 27 and the web is gripped against the table which is pulled with the web as successive lines of typing. are written on the form. .The web 10 is held under tension at the delivery side of the platen .by means of a spring 28 wound on a supporting shaft 29,'and acting against a pin 81 to swing the table 12 which 'is pivotally mounted at 30 upon supporting arms 31. As theusual line-spam ing mechanism (part of which is seen at Figure 8 in dotted linesin the form of a line-space wheel) .is operated to rotate the platen, the spring 28 carries the web upwardly and rearwardly from the printing line on the platen,

.' the operations of the web-lifter 28 and the carrier 12 being under control of said line-spacing mechanism.

After the typing of the form, there is a stripping operation, by which the carbons are shifted to a new field of the web, that is to say,

. the carbons are held in a stationary position and the web is pulled to thus strip the carbons from the typed form and to present them to a fresh form. To this end, the platen is rotated forwardly and the table or carrier 12 is again held stationary by means of the lock 18, which is swung upwardly by means of a handle 32. Simultaneously with the locking of the table against displacement, the clamp 19 is released to thus free the work-web, as shown in Figure 1, whereupon the platen is cranked and the web is pulled toward the platen while the carbons are held stationary. Due to the translucent nature of the web-plies, it is possible to distinguish a contrasting line determining the ends of the carbon-sheets, and the contrasting line is made to register with a line 33 on the printed form to thus position the new form relatively to the ends of the carbonsheets. v

The lock 18 is again reached to render the clamp 19 effective to grip the web and the platen is again cranked rearwardly to position the web for cutting off the printed form. in order that the web may be severed at the rear of the platen, the machine is provided with a cylindrical knife 34 co-operating with a cutting edge 35 on a rear table 36. Said rear table is an extension of the rear chute 37 of the machine, and is fastened to the platenframe by means of screws 38. The knife is provided with a handle 39 and is pivotally mounted uponst'uds 40 and 41 journaled iii support ng frames 42. In order to facilitate the cutting of the web, the knife is provided wlth a pitched cutting edge 43 to facilitate shearing the web. Another feature of the knife is its simple design which permits it to be made of a single sheet-metal piece bent to shape and hardened at the cutting edge. At

the ends the knife is'provided with supportmg ears 44 carrying the studs 40 and 41 fast thereto. The stud 40 rotates in a bushing 45 fast to the plate, and a portion of the stud protrudes to the outside of the bushing and carries the handle 39, secured thereon by means of a screw 46, the handle being limited on its forward and rearward travel by means of pins 80 fast to the supporting frames 42.

In order to readily locate the web around the platen in a position to be severed, there is provided a gage 47 controlled by the movement of the table 12. Said mounted upon the shaft 29 and swings downwardly with the table-supporting arms 31. However, the gage is not positively connected to the arms, butis driven independently therefrom by the action of a spring 48, which tends to hold the head 49 of a stud 50 against one of the arms31. In thisma'nner, when the the arms 31 are swung forwardly, the gage will follow by the action of the spring, and when the arms are swung rearwardly, then gage is pivotally the gage will be positively driven in the same direction. Referring to Figure 5, in which the web is shown in cutting-oft position, it will be noted that theend 51 of the gage is provided with an indicating finger 52 which co-operates with a fixed pointer 74 to indicate the cutting-off position relatively to the carbon-holders Due to the resilient connection between the gage 47 and the arm 31, it is possible to lower the table to the printing position shown in Figure 7, and at the same time stop the swing of the gage when striking a surface 53, as shown in said Figure 7.

In order that'this device may be adapted to different form-length, there are provided means for adjusting the position of the gage relatively to the arms 31. Said means may comprise an arcuate slot 54 into which the stud 50 is slidably mounted and locked by means of a nut co-operating with a threaded end 56 of the stud 50. The stud is secured to the gage in a position corresponding to the length of the form, which length is indicated by figures 57 adjacent the slot In order to render the adjustable stud operable with one hand only, there is provided a projectin g rib 58 fitting into the slot 54 and slidable therein. so that in order to change the position of the stud, the nut is loosened and the stud is moved in the slot Having severed the typed form, then the platen is again cranked forwardly to slacken the weband the lock is thrown to its effective position to release the clamp so that the web may be pulled forwardly by the action of the platen and the feedrolls, to thus present a fresh form to the carbon-sheets. Then the form is typed and cut off, and the cycle of operations is repeated.

The web is led over the movable table or carrier 12 from the rear of the machine and is passed under a cross-rod 59 secured to cars 60 by means of screws 61. The rod is provided with a groove 62 into which the point of a screw 63 is slid to position the guides 13 to suit the width of the web. Said table is also provided with upwardlyextending ears 64 upon which the shaft 65 is rotatably mounted. At the edge of the table there are provided the carbon-blades 17 of usual design. said carbon-blades being secured to the table by means of screws 66 and locating pins 67 the blades being staggered to clear one another. as shown in Figure 8.

In order to facilitate the attaching of the device to an Underwood standard typewriter, all the mechanism is operatively mounted between the two supporting frames 42, which 7 ing on the clamp 19, which is inturn backed by another pin 91 fast to one of the arms 31.

In order to prevent the sagging of the table when the tension on the'web is released, and in order to lock the table against displacement when the clamp 19 is released by the action of the lock 18, there is provided a pin 71 fast to one of the arms 31 against which the table strikes.

Advantage is taken of the device disclosed in the above-mentioned Patent No. 1,402,80l, in which a plate 7 3 is fastened to the frame of the machine, said plate overlapping the edge 72, as shown in Figure 1, thus rendermg the introduction of the web an easy matter.

Owing to the design of the movable'table or carrier 12, and to the action of the clamp 19 on the table, the latter is 'providedwith a counterweight 75 fast to the forward portion of the table. will be held against the pin 71 even after releasing the clamp 19, which is actuated by a pin 76 engaging a notch in a downwardlyextending finger 77 of said clamp. For the purpose of increasing the gripping of the clamp upon the table 12, there is provided a rubber tubing 78 over the clamping bar 79 of the clamp.

The web is prevented from winding itself around the platen by means of a plate 82.

having an edge 83 close to the platen, so that the leading edge of the web is confined between said plate 82 and the chute 37 and is led to the knife. Said plate 82 is secured to the table 36 by means of screws 84, and the plate is spaced from said table by means of spacing collars 85.

The work-web having a plurality of plies is drawn up from the supply at the rear of the machine and is passed over a pivotally mounted table between side gages. Then the plies are threaded between sheets of carbon which are held fast to the table by means of carbon-holding blades, and the web is inserted at the delivery side of the platen. The platen is then rotated by means of the handle 29 fast to its supporting axle, and, by means of the co-operating feed-rolls under the platen, the web is fed around and is delivered at the normal introductory side of the platen. The arms on which the table is swingably mounted are then released and the webis clamped to the table, so that both the carbons and the plies of the web may be fed around the platen as a single pack. Again, the handle on the platen is rotated rearwardly to impart to the platen a retrograde rotation, and

to present the first line of the form to the printing line, whereupon subsequent linesof typing are printed on the form which is linefeed by the regular line-space mechanism of the machine, and at the same time the slack of the web at the delivery side of the platen In this manner the tableistaken up by a spring tending to rock the table away from the platen.

After typing the first form, the platen is cranked forwardly to slacken the web and lock 18 is operated to lock the table and to release the clamp, so as to free the web, whereupon the platen is rotated again rearwardly to strip the type form from the carbons and to present a fresh form thereto. The-first form is presented 'to acuttingoff knife to be severed by rotating the platen further rearwardly up'to a position where a knife-gage having an indicating point corresponds with a fixed indicator on the platenframe. The knife is then operated to cut off the web, and the typed form is delivered at the rear of the machine, the cycle of operations being repeated for each fresh form.

For the purpose of conducting the typed forms into a receptacle after being cut off, there is provided an extension 86 of the table 36. Said'extensi'on is secured to the table at the ends thereof by means of screws 87, the front edge 88 of said extension being separated from the cutting edge 35 of the table 36 to clear the knife 3 L. The rear end of the extension is secured to downwardly-extending supporting pieces 89.by means of rivets ion means having, in combinatioma carrier overlying the platen, and a plurality of carbonholding blades fast to the carrier.

2. In a typewriting machine having a revoluble platen, a platen-frame and typing instrumentalities, and means for presenting to the platen a web comprising work-plies interleaved with carbons in a manner to afford typing of the bottom form on the web preparatory to severing the typed form and presenting the next form to the platen, said means having, in combination, a carrier overlying the platen, a pluralityof carbon-hold- .ing blades fast to the carrier, and means to facilitate the introduction of the assembled web at the delivery side of the platen.

3. In a typewriting machine having a revoluble platen, a platen-frame and typing instrumentalities, and means for presenting to the platen a web, comprising work-plies interleaved with carbons in a manner to afford typing of the bottom form on the web preparatory to severing the typed form and presenting the next form to the platen, said means having, 1n combination, a carrler overlying the platen, a plurality of carbon-holdlocking the carrier in a fixed position to prevent its being swung toward the platen.

5. In a typewriting machine'having a revoluble platen, a platen-frame and typing instrumentalities, and means for presenting to the platen a web comprising work-plies interleaved withcarbons in a manner to afford typlng of the bottom form on the web preparatory to severing the typed form and presenting the' next form to the platen, said means hav1ng,1n combination, a carrier overlying the platen, a plurality of carbon-holding blades fast to the carrier, means for locking the carrier in a fixed position to prevent" its being swung toward the platen, and means,

including a clamp extending substantially the full width of the carrier, for curing the web to the carrier.

6. Ina typewriting machine having a revoluble platen, a platen-frameland typing'instrumentalities, and means for presenting to the platen a' web comprising work-plies interleaved with carbons in a mannerto afford typing of the bottom form on'the web preparatory tosevering th'etyped form and presenting the next form to the platen, said effectively semeans having, in combination, a carrier overlying the platen, and a plurality of carbonholding blades fast to the carrier, said carrier being pivotally mounted on supporting arms, and said arms being in turn pivotally mounted on" the platen-frame.

7 L In a typewriting machine having a revoluble platen, a platen-frame and typing instrum'entalities, and means for presenting to the platen a web comprising work-plies interleave'd with carbons in a maniier to afford typi hgof the bottom form on the web preparator'y to severing the typed form and present-- ing/ the next form, to the platen, said means "having, in combination, a carrier-overlying "the'platen,a,plura1ity of carbon-holding blades fast to the carrier, means to facilitate the'introduction of the assembled web at the delivery sideof the platen, means for clamping the web to the carrier, means for locking the carrier'a'gainst displacement, and means at the introductory side of {the platenfor severing the typed web. i

J a t 8. In a typewriting machine having a revoluble platen, a platen-frame and typing instrumentalities, and means for presenting to the platen a web comprising worleplies interleaved with carbons in a manner to afford typing of the bottom form on the web preparatory to severing the typed form and presenting the next form to the platen, said means having, in combination, a carrier overlying the platen, a plurality of carbon-holding blades fast to the carrier, means to facilitate the introduction of the assembled web at the delivery side of the platen, means for clamping the web to the carrier, means for locking the carrier against displacement, and means at the introductory side of the platen for severing the typed web, said last mentioned means comprising afixed knife having a cutting edge substantially parallel to the platen, a cylindrical knife having a cutting edge co-operating with the fixed knife, and means for rotating said cylindrical knife on the axis of the cylinder.

9. In a typewriting machine having a revoluble platen, a platen-frame and typing instrumentalities, and means for presenting to the platen a web comprising work-plies interleaved with carbons in a manner to aiford typing of the bottom form on the web preparatory to severing the typed form and presenting the next form to the platen, said means having, in combination, a carrier overlying the platen, a'plurality of carbon-holding blades fast to the carrier, means for locking the carrier in a fixed position'to prevent its being swung toward the platen, means, including a clamp extending substantially the full width of the carrier, for eifectively' securing the web to thecarrier, and means op-: erated by a handle for simultaneously re1easing the clamp and locking the carrier and for simultaneously releasing the carrier and rendering the clamp effective to secure the web to the carrier.

10. Ina typewriting machine including a revolubly mounted platen and type-bars o erativly connected to depressible keys, t1e co ination of means for presenting a multiple ply-web to the printing line on said platen, means for controlling the position of a plurality of sheets of carbon between each ply of the web, means for locking the carbons in a' position outside of the platen, means for rotating the platen and winding the web therearound while the carbons areheld in their "stationary position, and means for locking the web to be fed around the platen with the interleaved carbons as a single pack.

11. In a typewriting machine including a revolubly mounted platen and type-bars operatively connected to depressible keys, the combination of means for presenting a multiplc-ply-web to the printing line on said platen, means for controlling the position of a plurality of sheets of carbon between each ply of the web, means for locking the carbons in a position outside of the platen, means for rotating the platen and winding the webtherearound while the carbons are held in their stationary position, means for locking the web to be fed around the platen with the interleaved carbons as a single pack, and means at the introductory side of the platen to cut off the typed form of the web.

around while the carbons are held in their stationary position, means for locking the web to be fed around the platen with the interleaved carbons as a single pack, means at the introductory side of the platen to cut off the typed form of the web, and means for indicating the cutting-off position of the typed web relatively to the position of the carbons.

13. In a typewriting machine including a revolubly mounted platen and type-bars operativelyconnected to depressible keys, the combination of means for presenting a multipleply-web to the printing line on said platen, means for controlling the position of a plurality of sheets of carbon between each ply of the web, means for locking the carbons in a position outside of the platen, means for rotating the platen and winding the web therearound while the carbons are held in their stationary position, means for locking the web to be fed around the platen with the interleaved carbons as a single pack, means at the delivery side of the platen to facilitate the introduction of the bottom edge of the web, and means for indicating the cutting-off position of the I typed web relatively to the position of the carbons.

'14. The combination with a typewriting machine having a revoluble platen, a platenframe and typing instrumentalities, of a table pivotally mounted on the platen-frame and overlying the platen, arms to support said table, means normally urging the table away from the platen, and means to lock the table 7 in its extreme position away from the platen.

15. The combination with a typewriting machine having a revoluble platen, a. platenframe and typing instrumentalities,.of a convextable pivotally mounted on the platenframe and overlying the platen, arms to support said table, means normally urging the table away from the platen, means to lock the table in its extreme position away from the platen, means for laterally guid ng a composite web. over the table, and laterally disposed blades for securing a plurality of barf bogils interleaving the plies of the web to the ta e.

1.6. The combination with a typewriting machine having a revoluble platen, a platenframe and typing instrumentalities, of a table pivotally mounted on the platen-frame and overlying the platen, arms to sup ort said table,means to rock the table away rom the platen, means to lock the table in its extreme position away from the platen, means for laterally guiding a composite. web over the table, meansfor securing a plurality of carbons interleaving the plies of the web to the table, an]?l means for vgripping the web against the ta e. v

17. The combination with a .typewriting machine having a revoluble platen, a platen frame and typing instrumentalities, of a table pivotally mounted on the platen-frame and overlying the platen, arms to support said table, means to rock the table away. from the platen, means to lock the table in its extreme position away from the platen, means for laterally guiding a composite web over the table, means for securing a plurality of carbons interleaving the plies of the web to the table, means for gripping the web against the table, and means controlled by the table-locking means to simultaneously release the web-gripping means when locking the table.

18. The combination with a typewriting machine having a revoluble platen, a platenframe and typing instrumentalities, of a table pivotally mounted on the platen-frame and overlying the platen, arms to support said table, means to rock the table away from the platen, means to lock the table in 1ts extreme positlon away from the platen, means for laterally guiding a composite web over the table, means for securing a plurality of carbons interleaving the plies ofthe web to the table, means for gripping the web against the table, and means controlled by the table-locking means'to simultaneously release the web-gripping means when locking the table, said lastmentioned means including a clamping member pivotally mounted on said table, said clamping member having a downwardly-ex-- tending finger, and the locking means being provided with a pivotally-mounted lever having a fixed pivot, the lever operatingon the finger to lock the table and to release the grip of the .clamping member. 19. The combination with a typewr'iting machine having a revoluble platen, a platenframe and typing instrumentalities, of means for presenting to the printing pointa multiple-ply web, said means comprising arms pivotally mounted on'the platen-frame at the rear thereof, a carrier mounted on said arms,

and carbon-holding blades fast to the carrierat the front thereof in betweenwhich the I frame and typing instrumentalities, of means for presenting to the printing point a multiple-ply web, said means comprising arms pivotally mounted on the platen-frame at the rear thereof, a table rockably mounted on said arms, carbon-holding blades fast to the table at the front edge thereof in between which the plies of the Web are passed, and means for locking the arms in their extreme position away from the platen to hold the carbons during the stripping of the typed forms from the carbons, said last-mentioned means including a locking arm.

21. The combination with a typewriting machine having a revoluble platen, a platenframe and typing instrumentalities, of means for presenting to the printing point a multiple-ply web, said means comprising arms pivotally mounted on the platen-frame at the rear thereof, a carrier mounted on said arms, carbon-holding blades fast to the carrier at the front edge thereof in between which the plies of the web are passed, and

means forlocking the arms in their extreme position away from the platen to hold the carbons during the stripping of the typed forms from the carbons, said lastanentioned means including a locking arm, and means for gripping the web to the carrier, said lastmentioned means being releasable when the locking arm is operated to free the web and to permit its being slid between the carbons to present a fresh portion ofthe web to the carbons.

22. The combination with a typewriting machine including a revoluble platen, a platen-frame, type-bars and depressible keys, of means for presenting to the platen a web comprising work-plies interleaved with carbonsin a manner to afford typing on the bottom form, said means including two rockably mounted arms fulcrumed at the rear of the platen upon the platen-frame, acarrier mounted on said arms, the arms being lockable in a fixed position, and means for simultaneously releasing the arms and for securing the web on the carrier, the carrier having also, fast thereto, the ends of the carbons inleaving the web.

23. The combination with a typewriting machine including a revoluble platen, a platemframe, type-bars and depressible keys, of means for presenting to the platen a web comprising work-plies interleaved with carbons in a manner to afford typing on the bottom form, said means including two rockably mounted arms fulcrumed at the rear of the platen upon the platen-frame, a table rockably mounted on said arms, the arms being lockable in a fixed position, means for simultaneously releasing the arms and for securing the web on the table, the table having also, fastthereto, the ends of the carbons interleaving the web. and means for facilitating the introduction of the web at thedelivery side of the platen, said lastmentioned means including a plate overlap bottom form, said means including two rock I ably mounted arms fulcrumed at the rear of the platen upon the platen-frame, a carrier mounted on said arms, the arms being lookable in a fixed position, means for simultaneously releasing the arms and for securing the web on the carrier, the carrier having also, fast thereto, the ends of the carbons interleaving the web, and means for conducting the web to a cutting-off knife at the introductory side of the platen, said last-mentioned means including a plate overlying the guide-plate and parallel thereto, said plate having its lower edge near the platen to pre vent the winding of the web therearound.

25. In a typewriting machine having a rear paper-chute, a device for severing a work-piece passing over said chute, said device including a pivoted knife having a blade curved about the pivotal axis of said knife for engaging squarely against said work-piece. 26. In a typewriting machine having a platen, the combination with a rear paperchute over which a work-piece may be passed rearwardly, of a rearward extension on said chute having a slot therein parallel with said platen, and a knife pivotally mounted above said extension to engage in said slot for severing said work-piece, the surface of said extension being free and unobstructed to permit the forward edge of said Work-piece to readily pass under said knife.

on pivots, said knife having a sloping cutting edge and a blade which is curved about the axis of said pivots, whereby all portions of said edge may engage squarely against a worksheet lying on said chute.

28. In a, typewriting machine having a platen, the combination with a rear paperchute for guiding a work-piece, of a rearward extension on said chute having a slot therein parallel with said platen, aknife pivoted above said extension for engaging in said slot and severing said work-piece, and a handle revoluble rearwa-rdly for operating said knife, the surface of said extension be ing continuous except for said slot, and free and unobstructed to permit the forward edge to rear, a table pivoted in the rear of said platen and arranged for having'said workweb drawn thereover from the rear of said machine, instrumentalities for fastening said carbons to said table, a spring urging said table rearWa-rdly, and instrumentalities for locking said table against pivotal movement, whereby said carbons may be stripped from form to form of said work-web.

30. In a typewriting machine, in combination, a platen around which a work-web composed of work-plies interleaved with carbons may be fed from front to rear, a table pivoted in the rear of said platen and arranged for having said work-web drawn ,cthereover from the rear of said machine to be reversely fed around said platen, means for releasably fastening said work-web to said table, and means for simultaneously releasing said Work-web and locking said table against pivotal movement on said machine.

31. In a typewriting machine, in combination, a platen around which may be reversely fed a work-web composed of Workplies having a succession of forms printed thereon and having carbons interleaved therebetween, the last or bottom one of said forms being fed to said platen first, a paper-table pivoted in the rear of said platen and arranged for having said work-web drawn thereover from the rear of said machine, instrumentahties for fastening said carbons to said table, releasable instrumentalities for fastening said work-plies to said table, whereby said work-plies and said carbons may be reversely fed around said platen together, and means for locking said table against pivotal movement, said means including a stop behind said table and a member holding said table against said stop.

32. The combination with machine having a revoluble'platen and a platen-frame, of means for conducting to the forward side of said platen a web including superposed work-plies interleaved with carbons, each ply having a succession of forms printed thereon, the bottom or rear form being fed first to said platen, said means ineluding a mounting plate detachably fastened on each end of said platen-frame, a shaft journaled in said plates and extending therebetween parallel to said platen, two upwardlyextending arms fast on said shaft, one arm being disposed adjacent each of said mounting plates, means for urging said arms rearwardly about said shaft, means for locking said arms at theends of their rearward pivotal movement, a plate supported between a typewriting.

the upper ends of said arms and arranged I with a curved middle and a curved rear portion, whereby said webmay be readily drawn from a source in the rear of said machine over said curved plate, and blades on the front of said table for holding said carbons in interleaved relation with said work-plies.

33. In a typewrit'ing machine, the combination with a platen around which one end of a multiple-ply work-web printed with successive forms may be fed from front to rear, of a table pivoted on said machine over which said work-web may pass to said platen from the rear of said machine, means for clam ing said work-web to said table, means in t e rear of said platen for severing one of said forms, and a gage yieldingly fastened to said table and operable upon movement of said work-web when engaged by the clamp to indicate when a form is in position to be cut from the work-web by said severing means.

84. In a'typewriting machine having a platen and a platen-frame, acarbon-carrier including a pair of upwardly-extending arms mounted on said frame, a convex plate fastened between said arms, a clamp member arranged for releasably clamping a multipleply work-Web drawn over said plate, and a plurality of blades mounted on said plate in front of said clamping member and arranged to extend transversely of said web alternately from each side into the plies thereof for bolding carbon-sheets interleaved therebetween.

35. In a typewriting machine, a carboncarrier" including a pair of'upwardly-extending pivotedrarms, a convex plate piv'otally fastened between the upper ends of said arms and arranged; whereby a multiple-ply workweb may be drawn over said late from rear to front, a plurality of bla es mounted on said plate adjacent the front end thereof and arranged for holding carbons interleaved with the plies of said work-web, a counterweight'disposed at the forward end of said wardly-extending arms pivotally mounted on i said machine in the rear of said platen, a curved plate pivotally mounted convex side up between the upper ends of said arms for having said work-web drawn over it from the rear of said machine, a plurality of blades adjacent the forward end of said plate and parallel thereto disposed transversely to said web and extending between the plies thereof to hold said carbons, means for urging said ward movement of said arms.

37. In a typewriting machine, in combination, a revoluble platen, means for presenting to said platen a work-web consisting of a succession of sets of superposed forms having carbons interleaved therebetween, so that the bottom or rear form is in advance, means for feeding the work-web around the platen from front to rear, means for keeping the portion of said web forward of the platen constantly under tension, means for stripping said carbons from form to form, and means for severing a set of said superposed forms of said work-web after said set of forms has been typed upon. a

38. In a typewriting machine having a revoluble platen around which may be fed from front to rear a work-web interleaved wit-h carbons and drawn from the rear of said machine, in combination, a knife in the rear of said platen for severing sections of said work-web after they have been typed upon, said knife being substantially concealed from the view of the operator by said work-web, and instrumentalities operable by movement of said work-web and positioned in full View of the operator for gaging said work-web to cutting-off position by said knife.

- 39. In a typewriting machine, the combination with a revoluble platen around which may be fed from front to rear a work-web drawn from the rear of said machine, of a table pivotally mounted in the rear of said platen over which said work-web may pass, instrumentalities for fastening said workweb to said table, instrumentalities in the,

rear of said platen and not readily visible for severing said work-web, and instrumentalities at the side of said platen and operable upon. movement of the fastened work-web for gaging said web to cutting-0E position.

4.0. In a typewriting machine, in combination, a revoluble platen around which may be reversely fed a succession of forms constituting a work-web, a paper-table in the rear of the platen over which said work-web may pass from the rear of said machine and be presented to the front of said platen, two upwardly-extending pivoted arms arranged for supporting said table, a work-web clamp on said table, a knife mounted in the rear of said platen for severing forms from said work-web, a gage-piece yieldingly connected with one of said upwardly-extending arms to be moved to a position to indicate when a form is in position to besevered, and an adamount of movement of said gage-pieceiwhereby the gage-piece may be employe with forms of varying length.

41. In a typewriting machine, in combination, a platen-frame, a revoluble platen around which may be fed from front to rear a succession of forms constituting a multipleply work-web, a paper-table in the rear of the platen over which said work-web may be drawn from the rear of said machine and presented to the front of the platen, means for clamping said work-web to said table, a supporting bracket at each end of said platenframe, a shaft between-said brackets, two upwardly-extending arms pivoted on said shaft and arranged for supporting said table, a knife mounted in the rear of said platen for severing forms from said work-web, a gage-piece pivoted on said shaft adjacent one of said upwardly-extending arms, a yielding connection between the last-mentioned arm and said gage-piece for urging the latter to swing with said arm about said shaft, a gagelug on the supporting bracket adjacent said gage-piece and arranged for co-operation with the outer end of the latter to indicate when a form is in cutting-oil position in the rear of said platen, and a stud mounted in a slot insaid gage-piece for movement there.- along, said stud being arranged to engage said adjacent upwardly-extending arm, whereby the starting position of said gage-piece relative to said gage-lug may be varied so that the gage-piece may be employed with forms of different lengths.

42. In a typewriting machine, the combination with a platen-frame and'a revoluble platen around which may be fed from front to rear a succession of forms constituting a multiple-ply work-web, of a knife mounted in the rear of said platen for severing forms from said work-web, a paper-table in the rear of said platen over which said work-web may be drawn from the rear of said machine, two upwardly-extending pivoted arms arranged for supporting said table, instrumentalities for fastening said work-web to said table, whereby said table is swung forwardly about the pivots of said arms when said work-web is fed around said platen, and a gage-device for indicating when a form is in position to be severed from'said web, said gage-device including a fixed gage-piece disposed about an end of said platen-frame, a forwardly-extending pivoted gage-piece and a yielding connection between the adjacent one of said arms and said pivoted gage-piece, whereby the latter may be swung downwardly as said work-web is fed around said platen to the rear and register with said fixed gage-piece when a form' is in cutting-off position, said pivoted gage-piece being further arranged to swing past said fixed gage-piece and be stop ed by said platen-frame upon swinging said table forwardly a further amount to bring the first line of a succeeding form adjacent the printing line of said platen, said yielding connection permitting further forward movement of said paper-table after said pivoted gagepiece is stopped by said platen-frame.

43. In a typewriting machine having a platen, in combination, means for presenting a work-web to the delivery side of said platen to be line-fed around the latter, and means for keeping a stretch of said work-web taut and straight at the delivery side of said platen. V

44. In a typewriting machine, the combination with a platen and lower feed-rolls, of means for presenting a work-web to the de: livery side of said platen to be line-fed around the latter by coaction of said platen and said feed-rolls, and means for pulling on said work-web to hold said web taut adjacent the delivery side of said platen, but not strong enough to overcome the grip on said workweb of said lower feed-rolls and said platen.

' 45. In a typewriting machine, the combination with a platen and lower feed-rolls, of a pivoted paper-table in the rear of said platen for' presenting a work-web to the delivery side of said platen to be line-fed around the latter, and means for pulling on said work-web at the delivery side of said platen, said means including a member for clamping said work-web'to said table, and springs normally urging said paper-table rearwardly about its pivot.

46. In a device of the class described, in combination, a platen-frame, a platen around which a work-web may be fed from front to rear, a paper-table including two pivoted supporting arms and web clamping means, whereby the table may be swung forward as said work-web is fed around said platen, a knife in the rearof said platen for severing a section of said work-web, and a gage for indicating when said work-web is in cut-off position, said gage including a fixed gagepointer supported on an end of said platenframe, a pivoted gage-finger arranged for moving with said paper-table to register with said pointer, said gage-finger having a rear enlarged portion with a circular slot whose arc is centered at the pivot of said finger, a stud disposed in said slot for adjustment therealong and arranged for engaging against one of the arms of said paper-table, whereby the distance moved by said pivoted gage-finger to register with saidpointer may be varied, and a spring arranged for urging said pivoted gage-finger forward with respect to said arm.

47. The combination with a typewriting machine having a revoluble platen, ofmeans for presenting a work-web interleaved with carbons to the forward side of said platen to be adjusted around the same to the rear, instrumentalities not readily visible from the front of said machine for severing a portion of said web, and instrumentalities readily visible from the front of said machine for gaging said work-web to cutting-off position.

48. In a typewriting machine having a platen and a platen-frame, the combination of a table, means on said table for supporting a work-web, composed of continuous forms, fixedly relatively thereto, said table being movable toward and away from said platen so as to feed the work-web, interleaved with carbons, to the forward side of the platen to position the second form from the bottom with its first line to be typed on the printing line, or withdraw the web from the platen, and a knife for severing the typed forms disposed rearwardly of the platen and at such a distance that when the bottom-most form is in position to be severed, the next, already typed, form will extend from the knife to the platen, thereby avoiding the necessity of rethreading the web under the platen prior to the typing of each successive form.

49. In a typewriting machine having a platen, a platen-frame and typing instrumentalities, the combination of a table disposed above said plat-en to feed a work-web to the forward face thereof, said table being movable toward and away from the platen, and a gage-finger arranged to move with said table and co-operating with a lug on the platen-frame to indicate the limit of a predetermined amount of movement, said finger and lug being relatively adjustable to permit variation of said predetermined amount of movement.

50. In a typewriting machine having a platen, a platen-frame, and typing instrumentalities, the combination of a table supported by said platen-frame and arranged to platen to sever the bottom-most typed section of said web. 51. In a front-strike typewriting machine lot] having a platen, a platen-frame and typing instrumentalities, the combination of a carrier at the delivery side of the platen arranged to have a multiple-ply web drawn thereover, releasable means for clipping the plies of web to the carrier, means supporting said carrier for movement with said web upwardly and rearwardly from the delivery side of the platen, line-spacing mechanism for controlling the upward movement of said carrier and web, and means for locking said carrier against movement.

52. In a front-strike typewriting machine having a platen, a platen-frame and typing instrumentalities, the combination of a carrier at the delivery side of the platen arranged to have a multiple-ply web drawn thereover, releasable means for clipping the plies of web to the carrier, means supporting said carrier for movement with said web upwardly and rearwardly from the delivery side of the platen, line-spacing mechanism for controlling the upward movement of said carrier and web, said carrier being movable up and down independently of said linespacing mechanism, and means independent of said line-spacing mechanism for preventing said carrier from dropping.

53. In a front-strike typewriting machine having a platen, a platen-frame and typing instrumentalities, the combination of a carrier at the delivery side of the platen arranged to have a multiple-ply web drawn thereover, releasable means for clipping the plies of web to the carrier, means supporting said carrier for movement with said web upwardly and rearwardly from the delivery i side of the platen, line-spacing mechanism for controlling the upward movement of said carrier and web, and means for holding the web under tension between the platen and said carrier.

54:. In a front-strike typewriting machine having a platen, a platen-frame and typing instrumentalities, the combination of a carrier at the delivery side of the platen arranged to have a multiple-ply web drawn thereover, releasable means for clipping the plies of web to the carrier, means supporting said carrier for movement with said web upwardly and rearwardly from the delivery side of the platen, line-spacing mechanism for controlling the upward movement of said carrier and web, and means for locking said carrier against movement, said. lock and clipping means being connected so that when the lock is released the clipping means grips the web.

55. In a front-strike typewriting machine having a platen, a platen-frame and typing instrumentalities, the combination of a carrier at the delivery side of the platen arranged to have a multiple-ply web drawn thereover, releasable means for clipping the plies of web to the carrier, means supporting said carrier for movement with said web upwardly and rearwardly from the delivery side of the platen, and line-spacing mechanism for controlling the upward movement of said carrier and web, said carrier having side gages for the Web.

56. In a front-strike typewriting machine having a platen, a platen-frame and typing instrumentalities, the combination of a carrier at the delivery side of the platen ar ranged to have a multiplely web drawn thereover, releasable means or clipping the plies of web to the carrier,-means supporting said carrier for movement with said web upwardly and rearwardly from the delivery side of the platen, line-spacing mechanism for controlling the upward movement of said carrier and web, and means for controlling the downward movement of the carrier towards the platen.

57 In a front-strike typewriting machine having a platen, a platen-frame and typing instrumentalities, the combination of a carrier at the delivery side of the platenarranged to have a multiple-ply web drawn thereover, releasable means for clipping the plies of web to the carrier, means supporting said carrier for movement with said web up- Wardl and rearwardly from the delivery side 0 the platen, line-spacing mechanism for controlling the upward movement of said carrier and web, said carrier extending the length of the platen, and means at the ends of said carrier for retaining the same parallel with the platen.

58. In a front-strike typewriting machine having a platen, a platen-frame and typing instrumentalities, the combination of a webcarrier overlying the platen, means for linefeeding the web-carrier and web upwardly and rearwardly from the delivery side of the platen, and means for locking the web-carrier.

59. In a front-strike typewriting machine having a platen, a platenframe and typing instrumentalities, the combination of a carrier at the delivery side of the platen arranged to have a multiple-ply web drawn thereover, releasable means for clipping the plies of web to the carrier, means for locking the plies of web to the carrier to move therewith preparatory to stripping the carbons, and means for restraining the carbons during the stripping movement of the web-plies, said carbons being interleaved with the plies of web.

BURNHAM O. STICKNEY.

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