US1971202A - Typewriting machine - Google Patents

Description

Aug. 21, 1934. J, A. B. SMITH TYPEWRITING MACHINE Original Filed Oct. 27, 1928 2 Sheets-Sheet l INVENTOR ATTOR 1934- J. A. B. SMITH 1,971,202

TYPEWRITING MACHINE Original Filed Oct. 27. 1928 2 Sheets-Sheet 2 INVENTOR ATTORiZ;

Patented Aug. 21, 1934 TYPEWRITING MACHINE Jesse A. B. Smith,

Stamford, Conn, assignor to Underwood Elliott Fisher Company, New York, N. ,Y., a corporation of Delaware Application October 27, 1928, Serial No. 315,548 Renewed December 13, 1933 12 Claims.

The present invention relates to manifolding upon multiple-ply form-printed paper-webs, and more particularly to mechanism for doing this kind of work wherein interleaved carbon-sheets are shifted from a typed set of forms to the next untyped forms.

In the patent to Crews, 1,565,550, of December 15, 1925, is disclosed flexible means for fastening carbon-sheets together as a unit for riding through the typewriting machine with the web; the carbon-sheets being occasionally held back in order to permit the web-plies to be stripped or drawn through the interleaved carbon-sheets, to bring the latter into manifolding relation with said next untyped forms.

According to the present invention improved means is provided whereby an assemblage of carbon-sheets interleaved between plies of workvveb may be fed therewith through the machine as a form is typed, and thereafter may be held stationary at the delivery side of the platen, said holding means permitting independent advance of the web-plies. for stripping the carbon-sheets to the next set of untyped forms.

According to one way of practicing the present invention, there are interleaved between the plies of a multiple-ply work-web loose carbonsheets each of which preferably has tablike lateral extensions, adjacent its trailing edge, which 39 may protrude from the opposite sides of the workweb. Side-edge-guiding means form a chute for the work-web at the introductory and delivery sides of the platen. A lateral guide-chute is preferably provided for the carbon-sheet extensions. A clamp is disposed at each side of the work-web, but clear thereof, for gripping the carbon-sheet projections against the floor of the chute. While the clamps are effective, the web-plies are pulled ahead for stripping the carhon-sheets; the. lower feed-rolls being first released. The extent of the work-web carbonstripping movement may be determined by a gage. The clamps are then released and the web is rolled back to its new typing position, and the 5 leading or typed set of forms is severed from the Work-web.

According to another way of practicing my invention, a succession of perforated sets of forms constituting a multiple-ply work-web may be interleaved with ordinary rectangular carbonsheets wider than the work-web and protruding a short distance from each side ofthe latter. Ga ge-pins may be provided on a telescoping gagedevice, said pins engaging in the perforations of 3 the web, to help guide the work-web, as well. as

determine the extent of its carbon-stripping movement after the carbon-sheets are clamped.

It will be seen as the description proceeds that my invention may be practiced with other kinds and arrangements of carbon-sheets than those described above.

For feeding the carbon-interleaved work-web forward as a form is typed, usual lower feedrolls co-operate with the platen and are thereafter releasedpreparatory to pulling the workweb ahead for carbon-stripping purposes. It is a preferred feature of the present invention to provide a positive operative connection between the carbon-gripping clamps and the lower feed- 1 rolls, which is effective to permit the latter to be released only after the clamps have been operated, and is also effective to cause the feedrolls to be thrown on before the clamps are released. The loose interleaved carbon-sheets are thus always secured against displacement, being always held either by the rolls or by the clamps.

It is a further feature of the invention to provide means for disabling the connection between the feed-rolls and the clamps, so that when desired the feed-rolls may be controlled by the usual feed-roll-release lever without affecting the clamps.

Other features and advantages will hereinafter appear.

In the accompanying drawings,

Figure 1 is a fragmentary perspective view of an Underwood typewriting machine having my invention applied thereto. In this view, the work-web is shown in its position just before the carbon-stripping operation begins, the carbon- '90 sheets being clamped and the feed-rolls released.

Figure 2 is a diagrammatic view of the structure shown in Figure 1, the work-web being shown at the end of the advance required for stripping the carbons.

Figure 3 is a fragmentary cross-sectional view, front to rear, through the structure shown in Figure 1. In this View is illustrated means for sever ing a typed set of forms after the work-web and carbons have been rolled back from the Figure 100 2 position, subsequent to the releasing of clamps from the carbons.

Figure 4 is a view similar to Figure 3, which illustrates an operative connection between the lower feed-rolls and the clamp for the carbonsheets. This view shows how the clamps are made effective just before the feed-rolls are H released. v

Figure 5 is a view similar to Figure 4, showing how the operative connection functions to release the feed-rolls.

Figure 6 is a perspective diagrammatic view, illustrating another form which my invention may take, wherein means are disclosed for using ordinary rectangular carbon-sheets between plies of the web for 'manifolding purposes.

Figure '7 shows a diagrammatic cross-sectional view of a composite work-web having a special carbon-sheet unit interleaved between the plies of the work-web which may be used in either the structure disclosed in Figure 1 or that disclosed in Figure 6.

Figure 8 is a flat or developed view of the fanfolded carbon-sheet unit shown in Figure "7.

Figure 9 is a perspective view of a special carbon-sheet, which may be advantageously used.

The present invention is illustrated as applied to an Underwood standard typewriting machine, inwhich types 10 strike against a platen 11 on a shaft 12, which is journaled in side plates 13 of a platen-frame 14. The platen may be rotated forwardly or rearwardly by finger-wheels 15 on the shaft 12, and may be line-spaced by usual line-spacing instrumentalities (not shown). The platen-frame includes the usual plate or table 16. Rear and front feed-rolls 1'7 and 18 run upon the bottom of the platen. Instrumentalities for mountingthe feed-rolls 1'7, 18 mayinclude a crossrod 19 extending between the side plates 13, and levers 20 and 21 pivoted on the rod 19 for supporting shafts 22, 23 which carry the rear and front feed-rolls, respectively. The levers 20 and 21 have depending arms 24 and 25, respectively, which engage against oppositely-disposed cam-flats 26 cut in a feed-roll-release shaft 2'7. Leaf-springs 28, supported by the cross-rod 19, urge the feedrolls against the platen. To a crank-arm member 29, on the right end of the shaft-2'7, a link 30 is fastened loosely and extends upwardly to be pivotally connected to a feed-roll-release lever 31. The construction of the parts described above may be the same as in a standard Underwood typewriting machine.

The link 30 is pivotally connected to the rear end of the release lever 31 by a shoulder-screw 32, whose inner end extends past the link 30 a short distance, for operation by a carbon-clamping lever 8'7.

An attachable frame 35 includes a right-hand and a left-hand bracket 36, each of which has a foot 3'7, which may be detachably fastened to platen-frame plates 38 by screws 39.

A standard 40 is provided on each bracket 36. at the forward end thereof; At the rear side of each standard, adjacent the upper end thereof, a lug 41 is provided, and a stiff cross-bar 42 may extend between the lugs and be fastened thereto.

Inturned flange-members 43 maybe formed on the standards 40 at the forward sides thereof, the flange-members extending below the tops of the side plates 13, togive a suitable range of adjustment to a web-severing knife 112 carried by the flanges. Threaded holes 44 are provided in each flange-member 43 and are spaced apart preferably uniform distances along the flange, for use when adjusting the knife.

Each bracket 36 has an upwardly and rear-, wardly inclined rear arm 45, having a lug 46. A stifi cross-bar 4'7 may extend between the lugs 46 and be fastened thereto.

For conducting a work-web 50, composed of a plurality of separate superposed plies 51, to the introductory side of the platen, a right-hand and a left-hand guide-plate 52'aremounted on rear cross-bar 4'7, each plate being provided with a side-edge guide-flange 53. For laterally adjusting the guide-plates or chute-members 52, each is provided with two slots 54, positioned in recesses 55. Screws 56 may pass through the slots and fasten the plates 52 to the cross-bar 4'7.

According to one form of the present invention, a front paper-table, generally designated as 60, includes a right-hand and a left-hand guide-' plate 61, which are mounted for lateral adjustment on the cross-bar 42 by screws 56, which pass through elongated slots 62, in recesses 63, which may be like the recesses 55. A forwardly-extending side-edge guide-flange for the work-web 50 is provided on each guide-plate 61 adjacent the top thereof. The guide-plates 52 and flanges 53 co-operate with the guide-plates .61 and flanges 65, forming a chute-like structure for the web 50.

For manifolding superposed form-sections 66 of the web 50, the leading end of the latter may be inserted and fed forwardly around the platen in the usual way until the lower end of the first set of forms rises above the printing line. A

carbon-sheet 6'7 may now be interleaved, carbonized face down, between each two adjoining plies 51. Each carbon-sheet may have a tab 68 projecting on each side, adjacent its bottom edge. The width ofthe body-portion of' each carbon-sheet 67 may be slightly, narrower than the width of the web 50, and the tabs protrude beyond the side edges of the work-web, usually about one-half inch.-

' A right-hand and a left-hand forwardlyextending integral side-edge guide-flange '70 forming a chute for the carbon-sheets 6'7 may be arranged on the front paper-table 60, adjacent the lower edge of the latter. The carbonflanges are separated slightly more than the distance between the outeredges of the extensions 68, and may be arranged with respect to the side-edge guide-flanges for the work-web 50,

whereby equal widths of the carbon-sheet extensions will project beyond the side edges of the work-web.

1 For gripping the carbon-sheets 6'7 by their lower portions at the delivery side of the platen, so that the work-web may be further advanced to strip the carbon-sheets, a clamp '73 is used, which clamps upon the carbon tabs or extensions 68. Each clamp may be pivoted on a screw '74 V in the adjacent chute flange 70, and may have a rearwardly-extending arm '75, and is normally urged toward the paper-table 60 by a spring '76,

which has one end fastened to the arm '75 and the other end to a pin '77. Each clamp may have a pad '78 at its lower end provided with a rubber facing '79, and extending through a notch in the adjacent flange for engaging the adjacent carbon-sheet extension 68. The portion of each flange below the shoe is preferably bent outward to form a throat for the extensions.

Means for holding the clamps in raised positions may include a latching notch 80 in a rearwardly-extending arm 81. A latching arm 82 for each clamp '73 may be mounted for lateral adjustment on a horizontal rock-shaft 83, a pin 84 in the rear end of the arm having camming engagement with the arm 81 and locking engagement in the notch 80. The shaft 83 extends the length of the platen and may be journaled in depending plates 85, riveted to the brackets 36.

It will be noted from inspection of Figure 3 that the the. pads '79 are maintained above the work- 1;;

1,971,202 face of the paper-table and permit free movement thereover of the carbons.

The top edges of carbon-sheets 67, are arranged a short distance below the leading end of the first form. This permits the leading end of a typed set of forms to be grasped by the operative and pulled ahead for carbon-stripping .purposes without-affecting the interleaved carbon-sheets held stationary by the clamps 73.

Before the stripping movement of the workweb 50, the feed-rolls may be thrown off the platen by the usual feed-roll-release lever 31, but it is a feature of the present invention to employ means which-are effective for releasing the feedrolls 17, 18 just after making both of the normally released clamps 73 effective. By this arrangement an operation is saved, and also the carbon-sheets may always be controlled by either the feed-rolls, the bight of web-plies, or the clamps, thus safeguarding the carbon-sheets against becoming disarranged.

The means for concomitantly controlling the feed-rolls 17, 18 the clamps 73 may include a handle or lever 87, fast on the shaft 83, and an operative connection between the lever 87 and the feed-roll-release lever 31. This connection may include a rear arm or extension 88 of the lever 87 having upper and lower jaws 90 and 91.

Normally (Figure 3), the rear end of the arm 88 stands below the pivot-screw 32 in the rear end of the feed-roll-release lever 31. Jaw 91 may be wider than jaw 90. Downward pressure on a finger-piece 92 on the forward end of the lever 87 will swing the jaw 91 up to strike the screw and raise it and the link 30, thereby releasing the feed-rolls l7 and 18. When rising, the jaw 90 passes by the screw or pin 32.

It can be seen from inspection of Figures 3 and 4 that the lever 87 moves idly for a time with respect to the feed-rolls. At the beginning of this movement of the lever 87, the pin 77 moves out of the latching notch and permits the spring 76 to make the clamps 73 effective before the feed-rolls begin to move away from the platen.

It can be seen from inspection of Figure 5 that when the jaw 91 has raised the screw 32 enough to release the feed-rolls, the jaw 90 overlies the latter. Thereafter, the carbons having, been stripped, the feed-rolls 17 and 18 can be moved from released positions to effective positions by returning the lever 87 from its foremost position, as indicated in the forward dot-and-dash representation of the lever in Figure 5, to its rearmost position. At the beginning of this returning movement of the lever 87, its jaw 90 strikes down against the screw 32 and restores the feed-rolls to the platen during the first part of the stroke of lever 87. During this first part of the travel, the pins 84 in the arms 82 are idly swinging down toward the arms 81, which they strike just after the feed-rolls engage the platen. During the remainder of the return or rearward travel of the lever 87, the pins 84 cam the arms 81 and the pads 79 counterclockwise until the pins 84 drop into the locking notches 80, thereby holding the pads raised above the work-web 50. Also, during this last part of the travel of the lever, the jaw 90 will slip off the screw 32 and move down to its normal Figure 3 position. In the last-named position of the jaws 90 and 91, they are entirely clear of the screw 32 or any other parts connected with the feed-roll-release lever 87, and the latter may be operated for releasing the feed-rolls without affecting the clamps. This feature permits the feed-rolls to be released for truing the webplies 51 and carbon-sheets 67 without causing interference'by the pads 79. 1

For quickly determining the extent of stripping, a telescoping gage-bar, generally designated as 95, is provided, and is mounted on the cross-bar 42 between the guide plates 61. A midsection 96 of the cross-bar is offset, and a lower member 97 of the gage-bar is rigidly fastened to' a spacerblock 98 by rivets 99, which also fasten the block rigidly to the cross-bar.

A carrier or truck-like member 100, may be slidably mounted on the member 97. An upweirdly-extending slide-bar 101 is riveted to a boss portion 102 of the carrier 100, and may be slid along the member 97 until it is arrested by the upper end of 100 abutting against a stop-device 103, which may be constructed as a stop strap. A rearwardly-bent lug 104 on the lower end of the bar-member 97 serves to stop the carrier 100 in its lowermost position.

A cross-bar 105 is adjustably fastened on the member 101 to be slid therealong by a clamping device 106, which may operate like the stop-device 103. The device 106, however, has only a single strap-arm 103 disposed behind the slidebar member 101. A forwardly-extending gagelug 107 is integrally joined to the top edge of the cross-bar 105, at each end thereof, in one form of my invention. The lower edge of the cross-bar 105 may be bent rearwardly, whereby the leading edges of the work-web will slide easily up over the cross-bar against the lugs 107.

For convenience in gripping the leading edges of the work-web against the cross-bar, between an operatives thumb and fingers, a U-shaped base-member 108 may be riveted to the back of the cross-bar. A rearwardly-bent lug 109 on the upper end of the member 101 serves as a stop to prevent the cross-bar being displaced from the slide-bar 101.

The gage-lugs 107 on the adjustable cross-bar 105 are positioned above the pads 79, a distance equal to the depth of a form 66 when the gagebar 95 is collapsed. The trailing ends of the car- .bon-sheets' 67, in normal position, are approximately even with a weakened dividing line 110 provided between forms. When the leading edge of the work-web 50 is moved up against the lugs 107 after the form is typed, the trailing ends of the carbon-sheets, being pulled by friction of the web-plies 51, will be approximately in line with the lower edges of the pads or clamps 79. The lever 87 is now operated for clamping the carbonextensions 68, and the trailing ends of the carbonsheets are held free of the platen, and no turn or bend in the carbon-sheets interferes with the advance of .the web-plies relative to the carbonsheets.

As explained above, the feed-rolls 17 and 18 are now released, and the operative may grip the leading edge of the web'50 by pinching it against the cross-bar 47 between the thumb and a finger of one hand, the thumb preferably engaging the web over the gage-bar 95, and the finger prefer- I,

the next untyped set will stand a little above the leading edges of the carbon-sheets 67; It will be understood that the upper edges of the carbonsheets will overlie the first writing line.

The finger-piece 92 is now swung up to the Figure 3 position, and the platen is reversely rotated web 50, completing the cycle of operations.

In Figure 6, are provided ordinary rectangular carbon-sheets 120. Substantially the same ,mechanism described hereinbefore may be employed, with only a few minor changes.

The gagelugs 167 on the cross-bar 105 are replaced by twogage-pins 121. Each set of forms 122 ot a work-web 123 is provided with usual holes 124 for engagement with the pins 121. Provision of the pins and the holes makes the front side-edge gages for the. work-web 123 unnecessary; since the pins not only determine the extent of the carbonstripping advance of the web-plies and keep them than the latter flanges. Clamping devices for the;

across the web-plies by downward pressure of the clamps. For the same reasons the width of the in registration with each other, but the pins also re-register the web-plies. z

Side-edge guide-flanges 125 for laterally pro truding portions of the carbon-sheets 120, which are wider than the web-plies, may be provided and be substantially the same as the flanges 70, or they may extend upward a greater distance protruding carbon-sheet portions may be constructed and operated like the clamps '73 and may include pads 79., a r The width of the protruding portions 126 will usually be one-half inch or more. It will be understood that in the case of a thick work-web having an extra large number ofplies, it may be advisable to increase the width or the protruding portions of the carbonsheets. It will be further understood that the distance from the inside edges of a pad or clamp 79 to the adjacent edges of the web-plies should always be enough to prevent the upper carbon-sheets oithe interleaved carbon-sheet assemblage being pulled tautly carbon-sheet extensions 68 should be slightly increased in cases where extra thick work-websare used.

In Figure 9 is shown a carbon-sheet 128 which may be advantageously used-with the form of my invention illustrated in Figure 6. A lower. edge strip 129 01 the carbon-sheet 128 is folded up, which not only strengthens the lower edge against being tombythe advancing web-plies, but also re-eni'orces the sheet where it has tb stand the strain from the clamps 79 pressing the sheet down against the paper-table.

The Figure 6 form of my invention may be-operated in substantially the same way as explained hereiiibei'ore for the Figure 1 form of the invention, it being noted that after typing a set of forms, they are advanced and fastened on the pins 121 before the carbon-;sheets are clamped.

In Figures '1 and 8 is shown a pack or assemblage-130 oi carbon-sheets 131 which may be madefrom a single strip or sheet of paper 132 by carbonizing strip-sections, i. e., the sheets 131, alternately on the front and back of the strip and then ian-iolding the latter to have all the carbonized surfaces facing in the same direction. Each sheet 131 has acarbonized portion 133 large enough for manifolding on an underlying form (not shown) all data typed on a top web-ply 134 of a work-web 135. At each side of each carbonized portion 133, a plain, uncarbonized side-edge strip 136 of paper is left, and after the sheets are fan-folded and interleaved with the plies of the work-web 135 as illustrated in Figure '7, the strips provide a suitable area,at each side of the work-web to be clamped in the way illustrated in Figure 6. It will be noted, however, that the carbon-pack 130 may also be used in the structure illustrated in Figurel.

It can be" seen that byhaving all the carbonh sheets of the carbon-pack 130 integrally connected as shown in Figures 7 and 8, each sheet 131 help keepthe other sheets or the pack my co-pending application No. 310,466, filed Ocbination, a platen around which may be fed a multiple-ply work-web interleaved with separate unattached carbon-sheets, the lower portions of said carbon-sheets extending outwardly-from the side edges of said work-web, a paper-table at the delivery side of said platen, laterally adjustable side-edge guide-flanges on said papertable for guiding said carbon-sheets, a clamp ,mounted on each of the flanges, for adjustment therewith, and at the delivery side of the platen and efiective for gripping the protruding portions of said carbon-sheets'at their lower ends, means for locking said clamps in released position, at all adjustments of said flanges and clamps, whereby the carbon-sheets may be fed under said clamps as said work-web is linespaced, and adjustable means for releasing said clamps simultaneously at one operation, at any adjustment of the flanges and clamps.

2. Iii a typewritingmachine having a round platen for manifolding a multiple-ply work-web interleaved with separate carbon-sheets wider than said work-web and protruding from both side edges thereof, the combination of a narrow guide-chute for said web at the'delivery side of said platen and above the point to which Vance or said carbon-sheets clear of the platen ,so that said carbon-sheets may be straightened above said platen, a wide guide-chute for said carbon-sheets at the delivery side of said platen, and clamping means on the lower end of said carbon-guide-chute for gripping the protruding portions of said carbonsheets at their lower ends, .said clamping means including a clamp at each side of said work-web and means connecting said clamps for concomitant operation,

extensions protruding from thesides of said web,

the combination with releasable lower feed-rolls effective for feeding the work-web forward, of clamping instrumentalities for gripping said protruding extensions on each side of said web and holding said carbon-sheets stationary after they are frictionally moved clear of the platen by the advance of the work-web, mechanism for operating said clamping instrumentalities' as a unit, and an operative connection between said mechanism and said feed-rolls, whereby either the latter or the clamps are always effective to hold the loose carbon-sheets under control against displacement relative to the web-plies.

4. The structure described in claim 3, having relatively adjustable chute-sections for said carbon-sheets, said clamps being correspondingly adjustable, and being operable at all adjust-- ment-s by said clamp-operating mechanism, while the connection is maintained between the clampoperating mechanism and the feed-rolls.

5. In a typewriting machine, the combination with a platen around which may be fed from the rear a multiple-ply work-web interleaved with loose carbon-sheets frictionally held between the plies of said work-web when bent around the platen, said carbon-sheets having lateral extensions protruding from the sides of said workweb, front and rear lower feed-rolls co-operating with said platen for feeding said carbon-interle'aved work-web ahead, and a feed-roll-release lever, of instrumentalities for laterally guiding said carbon-sheets including a paper-table at the delivery side of said platen, clamps for grip-.

ping said carbon-sheet extensions against said paper-table on each side of said work-web, manually-operable devices for controlling said clamps as a unit, a connection between said devices and said release lever, whereby either the feed-rolls or the clamps are always in effective engagement with the carbon-sheets or the carbon-interleaved work-web, and means for disabling said connection, whereby said feed-rolls may be released by said release lever while said clamps remain released.

6. In a web manifolding machine, the combination with a platen over which the web runs, of releasable feed-rolls to engage the web, a restraining device at the delivery side of the platen for engaging an interleaved carbon-set by its lower portion, means connected to said rolls for releasing them and to said restraining device for causing it to restrain the carbon-set, means for mechanically detaining said restraining device out of use, and means for releasing the rolls, at will, without bringing the restraining device into use.

7. In a web-manifolding machine, the combination with a platen over which the multipleply web runs with the interleaved carbons between the plies of web and protruding atthe sides of the web, of clamps mounted at the delivery side of the platen and near thereto, in position to engage the protruding sides of the carbons at their bottom ends, a rock-shaft extending along the platen-and having means to control said clamps, feed-rolls for the work-web, and means also controlled by said rock-shaft for releasing said feed-rolls. v

'8. In a web-manifolding machine, the combination with a platen over which the multipleply web runs with interleaved carbons between the plies of web and protruding at the sides of the web, of clamps mounted at the delivery side of the platen and near thereto, in position to engage the protruding sides of the carbons at their bottom ends, and a rock-shaft extending along the platen and having means to control said clamps, said machine having a chute for the web, including relatively adjustable side-edge guides, said clampcontrolling means being adjustable along said rock-shaft, and said clamps being adjustable with said guides.

9. In a web-manifolding machine, the combination with a platen over which the work-web runs, of guiding means for the work-web, other guiding means for interleaved carbons having protruding side-edge portions, clamps mounted at the delivery side of the platen and close thereto, to clamp the protruding edges at the bottoms of the carbons, a rock-shaft extending along the platen and having means to control said clamps, feed-rolls for the work-web, means also controlled by said rock-shaft for releasing said feed-rolls,

and a key for releasing said feed-rolls independently of said clamps.

10. In a web-manifolding machine, the combination with and feed-rolls for the platen, of a feed-roll releasing train, clamps mounted at the delivery side of the platen, and a rock-shaft extending along the platen and having means to control said clamps, including means mounted upon said rock-shaft to hold said clamps mechanically in released positions, an arm being provided upon said rock-shaft normally out of range of movement of the feed-roll releasing train but movable into engagement with said train to release the feed-rolls when the clamps move to carbonclamping positions.

11. A typewriting machine having types and a revoluble platen, and having provision for permitting a relative manual stripping operation between (1) a set of loose carbon-sheets and (2) a set of work-sheets in the form of plies of workweb having a crosswise relation to the carbonsheets, the latter being made substantially overwide and projecting at the'side of the work-sheets,

said work-sheets projecting at the top of the set of carbons, and a releasable projection-engaging stripper-clamp mounted at the delivery side of the platen and having a member by which one set of sheets is clamped and held stationary while the other set of sheets is grasped by the operator and stripped relatively to the clamped set, the machine having a general work-support upon which the unclamped set of sheets is supported with their edges clear for manipulation.

' 12. A typewriting machine having types and a revoluble platen, and having provision for permitting a relative manual stripping operation between (1) a set of loose carbon-sheets and (2) a set of work-sheets in the form of plies of workweb having a crosswise relation to the carbonsheets; the latter being made substantially overwide and projecting at the side of the work-sheets, said work-sheets projecting at the top of the set of carbons, a releasable projection-engaging stripper-clamp mounted at the delivery side of the platen and having a member by which one set of sheets is clamped and held stationary while the other set of sheets is grasped by the operator and stripped relatively 'to the clamped set, the machine having a general work-support upon which the unclamped set of sheets is supported with their edges clear for manipulation, and a gage to which the leading edges of the web-plies are brought, whereby the typed form is located a form's length above the platen.

JESSE A. B. SMITH.

a platen over which the web runs,

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