US1876778A - Typewriting machine - Google Patents

Description

Sept. 13, 1932. J. A. B. SMlTH TYPEWRITING MACHINE 2 Sheets-Sheet Filed Jan. 19, 1.929

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Sept. 13; 1932. J. A. B. SMITH TYPEWRITING momma Filed Jan. '19, 1929 2 Sheets-Sheet 3 Patented Sept. 13, 1932 OONNECTICUT, .ASSIG'N'OR TO UNDERWOOD ELLIOTT YORK, N. Y., A, CORPORATION OF DELAWARE.

JESSE A. B. SMITH, or STAMFORD, FISHER COMPANY, on NEW TYPE-WRITING MACHINE Application filed January 19, 1929. Serial No. 333,711.

This invention relates to paper-feeding devices for typewriting and similar machines, p

and is particularly useful with loose-ply multiple webs. Heretofore,

rinted lines thereon.

According to this invention the usual feed-' rolls are not used, and the clamps and operating mechanism are supported on the carriage, at the front of and above ,the platen. The clamp-j aws are pivotally mounted in pairs on two rockable rods, which are parallel to each other and to the platen, the rods having arms which are operative to swing open and to release the jaws against spring-tension. The stationary jaws normally press against a plate, fixed to the carriage, while the pulling jaws, located above the stationary jaws, normally clear a bar, which also serves as a cut ofi knife. Said bar with its'pulling jaws is carried on swingable arms, which are raise for line-spacing,

to prevent the loose plies .of a multiple-ply web from creeping one over the other, when fed around theplaten, the longitudinal edges'of the piles have been joined together in the well-known fan-folded manner, but this entailed difliculties in controlling the carbons. The employment of a fanfolded form of work-web required compli- "cated additions to. the standard typewriter equipment.

The present improvement provides a means for employing the more easily controlled and more desirable loose webs of peper and maintaining exact registry of all the plies during the line-spacing of the plies, and without making extensive changes in the typewriter.

This means includes clamps at the delivery side of the platen, co-op-erative to bind the webs together in such a manner as not to interfere with the manifolding and the linespacing of the loose plies.

In practicing this invention the platen need not be'revolved, but the movement of a line spacing lever operates two 'sets of clamps, one of which is stationary andclamps the lopse plies of the webtogether while a line is typed, and the other of which clamps the plies together and pulls the web around the platen to line-space it. During these operations. the clamps will alternately grip and release the plies, the gripping by either set anticipating the release'by the other, whereby the plies are constantly clamped into registry with one another. With this arrangement the plies of a loose-ply Web will not creep one upon another, which is a fault when loose plies are fed by means of a linespaced platen, and'the use of realigning pins and perforated-plies is avoided.- Furthermore, a plurality of plies will not skew oil or run diagonally when advanced, and the manifolding will be correctly and uniformly aligned andspaced. This is an advantage where multiple-ply printed webs are'used, be-

cause type-impressions on successive forms leased,

opening and release of the jaws, are all. accomplished by movement of the spacing lever, which is connected by suitable levers an links. The clamp-jaws are set to lie just within the margins of the plies, and, as they directly hold the same, no side-edge gages are required.

In using this invention the lower or stationary clamps will normally be are opened through a clamp-release-lever which locks them open for the insertion of the loose plies which are rear-inserted around the platen and brought between the open jaws of both sets of clamps, the upper set at this time being normally open. The lower set of clamps is then closed through the releaselever, and will firmly bind the plies together while a line is typed. Upon completion 'of thelatter, the preliminary rearward movement of the line-spacing lever for returning the carriage causes the pulling clamps to first grip the'plies, and then opens the jaws of the.- stationary clamps. Further movement of't'he spacing lever raises said pulling clamps and-'line-spaces the plies, after which said lever is released to be restored through spring-tension. I I 7 Before thespacinglever is restored, the stationary clamps re-close, and the pulling clamps remain closed untilthe lever is rewhen said clamps open and drop to a and are afterwards dropped. These motions, together with the alternateclosed, but

on each ply will identically register with the I will not slip.

'mains clean, which insures clear,

Furthermore,

scaleplate or member.

7 along,

This invention while holding the loose plies in fixed relation to each other, at the same time holds the interlying carbons in fixed relation with the plies. For this reason the carbons do not sm udge the paper, and it resharp manifolding on the carbon-copies. This makes it possible to manifold more copies at one time, because the typing on the added copies will still be legible. With this invention rolls of carbon-paper may be employed, instead of using single sheets intermittently pulled forward and back by carbon-carriers.

In the design shownfthe clamps can be used when carbon-sheets are replaced by carbonribbons, which are horizontally interleaved through loose plies at the front of the platen. This advantage is gained because the clamping devices are so arranged as not to conflict with said ribbons and their holding devices.

while the two device are separate, they are still near together, so that wide blank spaces or headings are not required between the typing line and the clamps. The clamps which line-space the paper do so by a direct pull above a spring-pressed This is an advantage over feed-rolls which merely push the plies because, in the latter case, some of the plies may belly out between the feed-rolls and said 'spring-pressed device. This is caused through friction set up by said device in pressing the plies against the platen, and results in unequal spacing and .poor manifolding alignment on some of the plies.

vWhen this invention is used, the plies are always stretched taut.between the clamps and .the spring-pressed scaleplate, or other devlce, which 1s another result that insures uniform alignment and clear-cut type-impressions on all the sheets. Furthermore, because the paper is pulled from above instead of being pushed from below the typing line, typing can be done nearer to the bottoms of the severed sheets.

Other features and advantages will heretional view of parts of a typewriting machine with parts of this invention attached thereto and in normal positions.

Figure 2 shows the parts of this invention just after their actuation has begun, and wherein the upper and the lower clamps are closed.

Figure3 shows just after the upper clamps have closed and the lower clamps have opened.

Figure is a perspective View of parts of a typewriter with this invention attached' thereto.

Figure 5 shows a detail view of the latch used for adjusting the line-spacing movement for one or more spaces.

Figure 6 shows the parts of this invention the parts of this invention after a line-spacing movement, and ready for restoration to normal, the lower clamps having closed and the upper clamps having opened.

'Figure 7 shows the partsof this invention after line-spacing and just before the lower clamps have closed and the upper clamps have opened. 7.

Figure 8 is a detail view of an upper and a lower clamp-j aw, and shows the possibility of placing both in the same vertical plane without adversely affecting the operation of either.

Referring to the drawings, 10 indicates a wor -pack that includes a plurality of loose webs of paperinterleaved with webs of carbon that may be inserted as a unit at the rear of a carriage 12 and directed around the platen 14 by a paper-table and paperdeflector' 11. The upon the usual platen-shaft 15, supported at each end by the carriage-end frames and provided with platen-knobs 16 and a toothed platen maybe supported platen-holding detent-wheel 17. The worki deflector 11, to bear against the pack and serve as a drag to retard the free advance of the pack around the platen and over the typing line. roller 18 is pivoted at 19 upon the free end of an arm 20'hung from a screw 21, threaded into the carriage-end and provided with a spring 23, tensioned against a pin 23, to force the roller into engagement with the teeth of the wheel to determine a line-typing position along the face of the platen. The screw 21 may be shouldered at 22.to enter a slot 24 and support one end of the plate 25, having a rest 26 fixed thereto, and further supported by a guide-plate 27 secured to the carriage-end. This plate 25'is slidable to set the location of the rest 26 and may then be secured in position by the screw 21 portion of a slide-bar 28, which, near its forward end, is slidable in a slot 29 that is formed in the carriage-frame. The latter also supports superposed brackets 30, which are adjustably attached through setscrews 31 and slots 32. 7 Normally, the slidebar is pressed *forward by an anchored spring The guide-plate 27'. also supports the rear The forward movement 7 On, the slide-bar-28 is a trip'39 and a lug v 40.. The trip 39 normally abuts the rounded end 41 of a jack-lever 42, which is pivoted at 43 on 'a lifting arm 44 that is pivoted on a rotatable lower rod '45. Said lifting arm has an car 46, which is threaded for a setscrew 47, having alock-nu-t 48. Said set- ,screw 47 abuts an arm '49 on said jack-lever 42, and governs the upward travel of said lifting arm when the trip 39 slides rearward ly along the rounded end 41. The lifting arm 44'also carries a stepping lever 50, which is pivoted at 51, has seats 52, and is crossconnected to the jack'lever 42 by a contractile spring .53.

The lower rod is journaled at each end in the brackets 30, and carries an attached lever 54 which is formed with an car 55 that overlies the thereforeraise sald lever but will not pul it down. Said ro'd also carries an attached arm 56 having a contractile spring 57, which is anchored to a pin 58 carried by one of the brackets 30. On said flattened surface on a cam 60. The latter 1s pivoted on a stud 61, which is carried by one of said brackets, and also has a finger-lever 62. Said cam 60 is provided with a recess 63 in which there normally rests the bent end of a leaf-spring 64 thatis attached to one of said brackets.

Attached to the lower rod 45 through setscrews 65, are pressure-arms 66 and pivotal jaws or clips 67 having bearing-pieces 68. The latter are positioned through the abutment of said arms 66 on one side and set-collars 69 on the other side.The jaws 67 have convex, ends 70, and may be formed integral with the bearing-pieces 68." One of the latter, on each jaw, has an ear 71, which maybe integral, and is threaded for an adjustable abutment or set-screw 72 having a lock-nut 7 3f Coil-springs 7 3 normally force the pressurearms 66 towards the set-screws 72 and keep the saws under tension.

At the free end of the lifting arm 44 is a stud or roller 74, which can override a cam 75 that is carried on a lever 76. The latter is swingable on a pivot 77, which is carried by one of the brackets30. The lever 7 6' also has a pivot 78, which supports one end of a link arm 44. The latter can l threaded for\ an adjustable abutment or setrod 45 also is an at- 1 tached cam-lever 59, which normally abuts a lock nuts 119, said screws acting able rest for the table in connection with the br ackets 30. Said brackets have slots 120,

overthrow of the lever,

88 which are secured to a shaft 89 journaled in the brackets 30, and is held therein by said hubs. The swingable arm is formed with an extension 90; having a plurality of holes 91, which may be identified by numerals, as shown in Figure 5. Said arm 85 also has a stud 92, on which is pivoted a spacing arm 93, having a stud 94, carrying a roller 95. Also attached to said arm 93 is a housing 96 which contains a plunger 97 to register with said hol'es, and includes a shank 98 that extends through said housing, and a button 99 riveted thereon. A coil-spring 100 tends to force the plunger out of the housing, while said button limits such movement. For purposes of shorter description, the parts 96', 97, 98, 99 and 100' are called a latch, which is given the number 101.

The upper rod 83 carries pressure-arms 102, which are adjustable thereon through setscrews 103. Said rod also carries pivotal jaws or clips 104, havin bearing'pieces and convex ends 106. he? of the bearing-pieces on each jaw may have an ear 107, which is screw 108 having a lock-nut 109. Both said bearing-pieces and said ears may be integral with the jaws. Coil-springs 110 normally the set-screws 108 and keep the jaws under tension. Set-collars 105 are also provided to position said bearing-pieces.

Carried by the upper rod 83 is a paper table 111, which is pivoted through ears 112 located as at 113, and is attached by a spring .114 to a pin 115 that is carried by the arm 84. Said table has cutouts 116, with the upper and lower edges bent rearwardly, and worksheets will therefore not be caught by said edges. Ears 117 have set-screws 118, and

as an adjustthrough which said table is guided, and also have additional guides in the form of rollers 121. Said table supports a bar 122, which is attached by rivets blocks 123. Said bar has a plurality of dished recesses 124' with can be registered.

The diameter .ofthe lug 40 is less than the width of the space 125 between tines 126 and 127, and provides a lost-motion connection for a lever 128 having a hub 129, mounted on a stud 130, which is carried by one of the brackets 30. Said lever 128 has a cam-edge 131 and a hooked end 132, to loosely and partially encompass theroller Said hook accomplishes the dual purpose of preventing the and of affording a prop to hold the roller in raised position. Said lever is loosely mounted, so that its overbalanced weight will tend to keep it in normal position.

force the pressure-arms 102 towards at each end thereof. The upper edge is rolled, 1

that also hold' spacingwhich the convex ends 106 1 terposed work-sheets. Said portions 135 havetheir lower ends flared from said jaws, for the easier insertion of said worksheets. A

type-bar 137 is shown, to illustrate the nearand the associated parts are not disturbed.

' release the ness of the typing line to the sets of clamps and a rear side-edge gage is indicated by 138. In operation, the parts will normally lie as illustrated in Figures 1 and 4. In such positions a work web or pack 10 is rear-inserted and deflected between the platen and the pressure-fingers 13. I The work-pack is further advanced, and is led between the parts 67 and 135, which are referred to as the lower stationary or closed clamps. As the latter are normally closed, the finger-lever 62 is moved to rock the cam 60, which, in a well-known manner, depresses and holds the cam-lever 59 to rock the lower rod 45 with the attached pressure-arms 66, and the latter will swing the jaws 67 and leave open saidlower clamps. The work-pack is thenadvanced above the parts 104 and 122, which are referred to as the upper open or web-feeding clamps, and at this stage are normallyopen. Thecfinger-lever 62 is released, and is restored to its normal position through tension of the springs 57 and 73. In its restored position said lever is held, through engagement of the recess 63, by the leaf-spring 64. The release of said lever causes the lower clamps to again close, and to grip the work-pack.

When the finger-lever 62 is operated the lever 54 will be rocked, and its ear 55 will swing up and away from the lifting arm 44 With the lower clamps closed, as last above mentioned, a linemay be typed, after which the sheets areline-spaced. To accomplish this, the spacing lever 36 is moved a full stroke to the right, from end to end of the guide 38. This forces the slide-bar 28 to the rear, and, through the lug 40, starts swinging the cam 131. Meanwhile'the trip 39 .will cam and raise t l1e\jack-lever- 42. As the jack-lever is forced up, the parts assume the positions shown by Figure 2, in

which the roller 74 has cammed the lever 76 and'swung forward the pressure-arms 102 to jaws 104. The latter, through te1ision of their springs 110, will press against the work-pack, which will thus be firmly held by the upper clamps. It will be noted that at this stage the lower clamps also grip the work-pack. Further travel of the slide-bar winds up and increases the tension of the springs 110 through the further forward swinging of said pressure-arms, as the parts gravity,

revawe assume the positions shown by Figure 3, where the lower clamps have been opened through the'rearward swing of the pressurearms 66, which operate thejaws 67 to release their grip on the work-pack.

In certain positions of the parts, between those shown by Figures 3 and 7, the cam 131 will engage and raise the roller 95. This movement elevates the upper clamps, which are carried by the swingable arms 85 and 86,

and pulls up the work-pack to line-space it. 1

of the jack-lever by the trip 39. Through such position of said stepping lever, the lower clamps are held open and the upper clamps are held closed, as the line-spacing movement is accomplished. During the latter, the trip 39 and cam. 131 will travel to the position shown in said figure. A fur ther slight rearward movement of the trip 39 kicks free said lower seat 52, and said stepping lever 50 drops. The upper seat thereupon engages the rest 26 through tension of the spring 53. ,Said dropping-occurs partly through gravity and partly through tension of the spring 57 and effects closure of the lower clamps.

As the stepping lever 50 drops, the upper clamps are held in raised position through the roller 95 and the hooked end holdingpermits the successive closing of the lower clamps and opening of the upper clamps before the latter drop to normal po sition. Such jaw-movements of the respective clamp-sets occur as the parts move out of the positions shown in Figure 7, and into the positions shown by Figure 6, During the ensuring restoration of the slide-bar 28, the upper clamps open through tension of the spring 114, asthe lever 76 is released through dropping of the lifting arm 44. As said roller is released from said hooked end thrdugh thev lug 40, the upper clamps will drop, through to the normal positions shown in Figure 1'. p x

In Figure 6 the slide-bar 28, trip 39 and lug 132. Such 40 are shown both by solid and dotted lines.

The latter indicatethe extreme rearward positions of said parts, while the former show the same as they move toward restored positions. By such dual positioning, it is illustrated, in particular, that said lug 40 is pro- I vided with lost motion between the tines 126 and 127. This permits more time in which the lower clamps may close, and the upper ones may open before the latter are dropped. Additional time is gained for the foreserves a dual purpose,

same purpose, through the lingering disengagement of the roller 132 as the latter is swung roller. 1

The lost-motion provision last above described has another benefit, in that the momentum thereby. gained helps the lug 40 to disengage the hooked end and roller as the slide-bar is restored. For this reason a lighter spring 33 may be used, which makes easier the operation of the spacing lever. Due to the rollers 121, the table 111 with the attached bar 122 is so guided that the upper clamps pull the work-pack through the lower clamps in practically one plane. As the lower clamps register with this plane, the latter is not upset when the pack is gripped by said clamps. For this reason the pack will remain taut between the lower clamps and the pressurefingers 13, and type-impressions will be clearcut.

During the restoration of the slide-bar, the trip 39 will idly pass under 42. The latter will then be restored to the normal position shown in Figure 1, through tension of the spring 53. The latter therein connecting with the aforementioned stepping lever 50. A dual function is performed also by the spring 114, which holds the table 111 against the rollers 121, and helps to restore the upper clamps from the positions shown inFigure 7 to that shown by Figure 6. In the latter, also, is illustrated that the throw of the lever 128. In such position, too, said lever acts as a rear stop for the slidebar, through abutment of the tine126 and the lug 40.

The slide or driver 28 closes the clamps 106 by means of cam 42 and lever 44, the latter operating the clamps 67 As the lever 44 is further elevated, the cam? 5 drives the link from under said 79 to the right, and closes the clamp 106. The

driver 28 also operates the cam-lever 131. A second lever 93 is swung by cam 131. The clamps 106 are connected to saidsecond lever 93 to be lifted thereby for line-spacing the web.

The latch 50, being raised bythe lever 44, is caught upon the projection 26. The pin 39 (which at first operated the cam 41) finally engages the latch 50 at the conclusion of,

the driver stroke, and forces said latch off from the pin 26, so that all the clamps may return to their normal positions-independently of the web. The spring 33 will return the driver 28 and the line-space handle 36.

It will be seen that at one stage, just before the web advances, all of the clamps are momentarily closed upon the web, as at Figure 2. At another stage, at the conclusion of the web-feeding movement, all the clamps are again momentarily closed upon the web;

Hence the web is at no time free from clamps, and cannot become disarranged.

95 by the hooked end the jack-lever hooked end 132 prevents overdoes not the web It will be noted .that the lever 36 line-space the platen, but line-feeds around the stationary platen during a carriage-returning sweep of said lever; that the gripping of the web by either set of clamps anticipates the release of the web by the other set of clamps and the loose plies are at all times under the gripping control of one set of clamps; that the stationary clamps are opened. and reclosed during the forward or carriage-returning sweep. of the lever 36; that the web-feeding clamps are closed upon the web, actuatedto line-feed the web locked during the forward stroke of the lever 36 to give ample time to reclose the stationary clamps upon the loose plies of the web before the web-feeding clamps'release the web on the initial return sweep of the lever 36 that the loose plies are printed upon a letter-fed platen that has no line-spacing connections, and the loose plies are drawn and spacing. lever 36 and self-retractible to a web-clamping state when released by means controlled by the sweep of said lever; that the web-binding gripof the clamps is. made uniform by individually-adjusted spring-tension, and not from pressures derived'from a variably-actuated line-feeding lever; and that the loose webs are manifolded and linefed in a flat state because the direction of. the web-feedingpull is tangent to the typing line of the platen.

Variations may be resorted to within the scope of the invention, and-portions of the improvements may be usedlwithout others. Having thus described my invention, I claim:

1. In a typewriting machine having a Sta-- tionary platen, the combination of releasable clamps normally detaining the web. areciprocatory line-space lever, a reciprocatory paperfeeding frame whose reciprocationsare controlled by said lever, means controlled by said line-space lever through said frame to release the web-detaining clamps and close the web-feeding clamps, means controlled by the lever to impart a feeding stroke to said frame and the web-detaining clamps after the release of the web-detaining clamps, and

means controlled by said frame for restor ing the web-detaining clamps and opening the web-feeding clamps preparatory to return of the frame to normal position.

2. A paper-feeding mechanism for typewriting machines having a letter-feeding carriage and a stationary platen around which the loose plies of a web are to be fed, including a line sp'acing. lever on the carriage,

clamps on the carriage operable by said lever to clamp the loose plies togetherand man- -1ng clamps on the carriage operable to clamp the loose plies when not being line-spaced, and mechanism actuated by the line-spacing lever operable to open and reclose the webholding clamps during the line-spacing sweep of said lever.

3. A paper-feeding mechanism for typewriting machines having a letter-feeding.

carriage and a stationary platen around which the loose plies of a web are to be fed, including a line-spacing lever on the carriage, clamps on the carriage operable by said lever to clamp the loose plies together and manually operable to line-space the web,'holding clamps on the carriage operable to clamp the loose plies when not being line-spaced, and mechanism actuated by the line-space lever operable to open'the' web-holding clamps before the web-feeding clamps become operative to line-feed the web, and operable to reclose the web-holding clamps before the web is released by the web-feeding clamps at the end of'a line-spacing operation.

4 A paper-feeding mechanism for typewr1t1ng machines having a letter-feeding 1 carriage and a stationary platen around which the loose plies of a web are to be fed, including a line-spacing lever on the carriage, clamps on the carriage operable by said lever to clamp the loose plies together-and manually operable to line-space the web, holding clamps on the carriage operable to clamp the loose plies when not being line-spaced, and mechanism controlled by the line-spacing syveep of the line-spacing lever operable to slmultaneously clamp the loose plies with the web-feeding and the web-holding clamps A as .of said lever,

before and after the line-spacing of said lever.

5 A paper-feeding mechanism for typewrit ng machines having a letter-feeding carriage and a stationary platen around whlch the loose plies of a web are to be fed, 1ncluding a line-spacing lever on the carriage, clamps on the carriage operable by said lever to clamp the loose plies together and manually operable to line-space the web, holdlng clamps on the carriage operable to clamp the loose plies when not being linespaced, and mechanism controlled by the hne-spac1ng sweep of the line-spacing lever operable to simultaneously clamp the loose plies with the web-feeding and the web-holding clamps before and after the line spa cing and then releasing the web from one of the clamps while the plies are held by the other clamps, so that the loose plies are clamped together at all times to prevent creeping.

In a typewriting machine, the combinatlon witha letter-feeding carriage having a stationary platen, of line-spacing means including a frame swingable to and fro on the carriage once in each line-spacing operation,

to feed a plurality of loose plies of web around the platen, and normally open automatic paper-clamps connected to said frame to be caused thereby to bind the loose plies together to prevent relative creeping of the plies, said frame causing said clamps to bind the loose plies together and feed the web over the platen.

7. In a typewriting machine, the combination with a letter-feeding carriage having a stationary platen, of line-feeding means including a frame swingable to and fro on the carriage to feed a plurality of loose plies around the platen, normally released paperclamps upon said frame and operable automatically to bind the loose plies together to prevent relative creeping of the plies while being fed over the platen, and means stationary with the carriage and controlled by said line-feeding means and operable to clamp the loose plies together to hold them stationary when the swingable clamps arc disengaged from the plies, said frame havring) return movements independently of the we Y 8,. In a typewriting machine, the combination with a letter-feeding carriage having a stationary platen, of a paper-feeding frame swingable to and fro on the carriage to feed a plurality of loose plies around the platen, paper-clamps operable to bind the loose plies together to prevent relative creeping of the plies while being fed around the platen, and means manually operable and having connections with the frame operable to close the paper-clamps upon the loose plies, and then swing the frame to draw the loose plies around the platen while so clamped.

9. A paper-feeding mechanism for typewriting machines having a stationary platen over which the loose plies of a web are to be fed, including a line-spacing lever, clamps operable by said lever to clamp the loose plies together, said clamps'b'eing co-opfrative with the lever to line-space the we webdetaining clagnps closable by said lever to clamp the loose plies at the conclusion of the advance of the web, and adjustable means movable with the web-feeding clamps and operable to control the amount of web-feed for each line-s acing operation of said lever.

10. A manif lding mechanism for a typewriting machine having a letter-feeding platen around which the loose plies of a multiple-ply work-Web may be line-spaced, reciprocatory line-spacing means traveling with the platen and including normally open clamps at the delivery side of the platen,

. wirti ng the web l1. A manifolding mechanism for a typewriting machine having a letter-feeding platen around which the loose plies of a multiline-spacing of the web, said line-spacing means including open clamps at the delivery side of the platen, means operable to close the clamps upon the web-piles and draw the clamped-together plies line by line around the platen, said line-spacing means also including means for releasing and retracting said clamps for a fresh line-feeding operation, and other means for automatically binding the web-plies together while said clamps are released;

12. Paper-feeding mechanism for typewriting machines having a letter-feeding carriage and a stationary platen around which the loose plies of a multiple-ply web are to be fed, and having a line-spacing lever on the carriage, clamping and feeding devices on the carriage moved by the lever for clamping the loose plies together and advancing them together step by step, said feeding devices carrying the web but being returnable at every operation independently of the web, adjustable means to determine the amount of advance at each step, and a-clamp controlled by said lever, to retain the web stationary with the carriage between feeding operations. I

13. A manifolding mechanism for a typemachine having a platen, and manually operable reciprocatory line-spacing means, at the delivery side of the platen, and including a pivotally mounted reciprocatory line-spacing member, having normally open web-grippers, means, ope-rated by said linespacing means, to cause the grippers to clamp the plies of the web together when said member is swung in one direction and inoperative on the web when said member is swung in the'opposite direction, and means controlled by said line-spacing means ,for detainingthe web during the idle swinging of said member in said opposite direction independently of the web.

14. A- manifolding mechanism for linefeeding typewriting machines including a platen around which a multiple-ply workweb travels, and means to overcome the relaof the loose plies uponone tive creeping traveling around said platen,

another, due to including,

clamp the plies of web together and advance to line-space the same, and auxiliary 7 means controlled by said line-spacing mechanism to .hold the plies clamped together while the line-spacing mechanism is returned to take a fresh grip preparatory to a second at the delivery side of the platen, a: line-spacing mechanism having means to:

line-spacing operation, said line-spacing mechanism being at every operation returnable to normal position independently of the web.

15. In a typewriting machine, the combination of a carriage having a platen around which the loose "plies of a work-web are to be manifolded and fed line by line, a plurality of web-controlling devices on the carriage, at the delivery side of the platen, operable to prevent the relative creeping of the loose plies, said web-controlling devices including stationary clamps on the carriage normally binding the loose plies together while manifol'ding, normally open grippers swingable upon the carriage for line-spacing the web around'the platen, and manual means operable by a continuous movement thereof to open the stationary web-binding clamps to release the manifolded web, close the grippers to bind the plies together before their release from the clamps, swing the grippers to line-space the manifolded web around the platen, close the stationary clamps to rebind the line-spaced plies together, and release the web from the grippers.

16. In a manifolding /'mechanism for a typewriting machine, the combination of a letter-feeding carriage having a stationary platen around which the loose plies of a multiplely work-web may be drawn to be linespacehl, web-controlling means on the carriage, at the delivery side of the platen, to prevent the relative creeping of the loose plies one upon the other during the manifolding and the repeated line-spacing of the web, said Web-controlling means including a frame on the carriage operable to hold the web stationary, and also including a frame swingable upon the carriage, operable to line-space the web, each frame having-means to independently clamp the loose plies of the web together, and a line-space lever having means to operate theweb-clamping means in alternation, sothat the clamps-onthe stationary frame will bind the plies of the web together while being manifolded and the clamps on the swingable frame will bind the plies of the web together while the web is line-spaced by the swingab e frame, the latter" being returnable to normal position independently of the web.

17 In a manifolding mechanism for a typewriting machine having a letter-feeding carriage and a stationary platen around which the loose plies of a multiple-ply workweb maybe drawn, the combination of means for line-spacing the work-web without causing the loose plies of the web to creep one over the other during the manifolding of the plies and the repeated line-spaclng of the web, said grippers on the carriage swingable in a linespacing direction, a reclprocable line-spacing 8 i I evon e lever on the carriage, and mechanism actuated by the one-way swing of the'line-space' lever, operable to release the web from the clamps, bind the plies between the grippers to line-space the web around the platen, and restore the web to the control of the clamps, the return of the line-space lever operating to release the web from the grippers.

18. A paper-feeding mechanism for typewriting machines having a letter-feeding carriage and a stationary platen around which the loose plies of a web are to be fed, including a line-spacing lever on the carriage, clamps on the carriage operable by said lever to clamp the loose plies together and manually operable to line-space the Web, holding clamps on the car'riageoperable to clamp the loose plies when not being line-spaced, mechanism actuated by the line-space lever operable to open the web-holding clamps before the webfeeding clamps become operative to line-feed.

the web and operable to re-close the webholdin clamps before the web is released by the we -feeding clamps at the end of a linespacing operation, and a cutting blade on the carriage across which the loose plies may be drawn to sever the manifolded plies, at will,

fromthe clamped-together web of plies.

19. The combination of a platen, a linespace lever, a driver driven by said line-space lever, normally closed stationary work-holding clamps, normally open movable workholding clamps, means operable by said driver to effect the closing of the normally open clamps, means to enable said driver thereupon to open the normally closed clamps, means also controlled by said driver to latch the movable clamps in closed position and the stationary clamps in open position, a camlever operated by said driver, a second lever swung by said cam-lever, said movable clamps being connected to said second lever to be moved thereby for line-spacing the Web, means to enable said driver at the conclusion of its drive stroke to unlatch the clamping de-- vices, and thereby cause the stationary clamps to close and the movable clamps to open, and permit the return of the movable clamps to starting position independently of the web, and a spring to return said driver to normal position, said movable clamps bein g returnable to normal positions independently of said web.

20. iMechanism according to claim 19, in which said second lever is provided with an automatic lock to prevent overthrow of the clamp-mQving lever.

means to open the web-feeding clamps preparatory to the return'of the line-spacin device to normal position independently o the web while the webdetaining clamps remain closed.

JESSE A. B. SMITH.

21. Mechanism according to claim 19, hav- I ing means adjustable upon said clamp-moving lever for regulating the length of feed of the web, both said movable clamps and said stationary clamps being closed prior to the start and also'subsequent to the conclusion of the web-feeding movement, so that the web is always clamped.

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