US1878437A - Napkin folder - Google Patents

Description

Sept. 20, 1932. I

S. J. CAMPBELL NAFKIN FOLDER Filed March 24, 1928- l 10 Sheets-Sheet 1 Fig. 3.

INVENTOR 6 ATTORNEYS Sept. 20, 1932. 5 J CAMPBELL 1,878,437

NAPKIN FOLDER Filed March 24, 1928 110 Sheets-Sheet 2 MYWMZ ATTORNEYS,

S. J. CAMPBELL NAPKIN FOLDE R Filed March 24, 1928 10 Sheets-Sheet 5 NVENT R BY MW ATTORN EYS S. J. CAMPBELL Sept. 20, 1932.

NAPKIN FOLDER 1928 10 Sheets-fiheet 4 Filed March 24,

INVENTO R MM1/MX ATTORNEYS Sept. 20, 1932. 5. J. CAMPBELL- 1,878,437

NAPKIN FOLDER Filed March 24, 1928 10 Sheets-Sheet 5 INVENTOR M, fad,

BY v

ATTORNEYS Sept..20, 1932- 5. J. CAMPBELL 1,878,437

' NAPKIN FOLDER Filed March 24, 1928 10 Sheets-Sheet 6 ATTORNEYS Sept- 1932- 5. J. CAMPBELL 1,878,437

NAPKIN FOLDER Filed March 24 1928 10 Sheets-Sheet 7 .INVENTOR BY y?" ATTORNEY S Sept- 20, 1932- 5. J. CAMPBELL 1,878,437

NAPKIN FOLDER Filed March 24, 1928 10 Sheets-Sheet 8 A TTORNEYS.

Sept. 20, 1932. v 5. J. CAMPBELL f ,3

' NAPKIN FOLDER 7 Filed March 24, 1928 10 Sheets-Sheet 9 IN VEN TOR.

A TTORNEYS Sept 20, 1932. 5. J. CAMPBELL NAPKIN FOLDER FiledMa'rch 24, 1928 10 Sheets-Sheet l0 Iii/9.15.

INVENTOR M 1 a 21% M/ ATTORNEY S Patented Sept. 20, 1932 SAMUEL J. CAMPBELL, OF GREEN BAY, WISCOFTSIN NA'rKrn FOLDER Application filed March 24', 1928. Serial No. 264,410.

This invention relates to napkinv folders. I

Broadly speaking, it is the primary object of the invention to produce a novel and sim- 5 plified machine'for cutting and folding napiniprovements in kins to the so-called cornucopia form 'or out-.

the desired form and type with a minimum length of paper travel;

the paper is held at all times by the mecha nism acting thereon or by suitable guides so that it can not become displaced; secondly, 2 by providing a novel form of creaslng roll whereby the fold is positively plucked from the tucker blade instead of being impositively drawn therefrom by friction; thirdly,- by

providing a machine in which the sequence 0 of operations is so closely related that one set of converting mechanism may commence to operate on the paper While the paper is still positioned by a preceding mechanism prior to its release therefrom; fourthly, the erovision of grooved rolls and guides closely confining the partially folded paper and interacting with the grooved rollsin such a Way as to minimize the possibility of irregular action; and fifthly, by operating the cut 9 off rolls at a higher. peripheral speed than the rate of paper travel so that the paper will fie cleanly cut regardless of howsoft'it may 0. a "it is my further purpose to'promotethe efficient folding of a cornucopia shaped napkin by providing one or more sets of folding rolls at an angle to the path of travel to the path of the paper.

It is my further purpose to provide means .5 for positively ad usting the angular position second last fold in the napkin of a partiallyfolded napkin by twistingit in its planeof movement to bring itsprospective fold line to the proper angle. It is my further purpose to provide a single machine capable of handling numerous nap- 555 kin sizes, both as to width and length of sheet, 7

with only a minor adjustment. 7 V i Other objects of the invention relate to novel and" improved .motion transmitting connections for the actuation of the several fparts in a manner best adapted to carry out the aforementioned objects.

In thedrawings: Figure 1 isa developedviewgin front elevation of the various componentparts -of the machine which act on the paper. Figure 2 is a developed,viewtaken-onthe 7 section indicated at 2-2 in Figure 1. More specifically, it'ismy purpose to pro- .20 mote accuracy in the napkin folding operations First, by providing a machine in whichv Figurei; is a view illustrating the appearance ofthe napkin at different points inthe 9 course of its manufacture,the various par tially completed napkins, being shown .oppo

site theportions, of the mechanism in Figures 1 and 2, whereby they are folded to the indicated form.

Figure A is a perspective view ofthe front V or delivery side of the machine;

Figure-5 1s a perspective view of the rear side of the machine. a

Figure 6 is an end elevation on a n en- 1 larged scale of the "machine frame, certain of the actuating connectionsbeing removed in order to show the location of the several shafts. I

Figure 7 is a detail viewof certain mechanismf for actuating the tucker blades used inthe final folding operation. I Figure 8 is. a detail view in end elevation of the mechanism shown in Figure 7..

.Figure 9 is a detail view in perspective showing a development of the actuating con: nections for the tucker blades in maki'ng'the Figure 10 is a developedview of the actuating connections for the packer." 1

Figure llis, a developed "view of the actuating connections for the quarterfolding tucker blade. 7 V I V Figure l21s'a rear elevation of amachine embodyinga modified arrangement :of the final folding rolls, tucking blades and guide tion the folding mechanism illustrated in 4b continuously across" triangle plate 17 and parts being removed toexpose the rolls.

Figure 13 is a perspective detailshowing the disposition of the tucking blades with reference to the rolls in the Figure 12 device. Figure 14 is a diagrammatic detail in cross-section of the complete assembly of final folding rolls, guides and'tucker blades as viewed in the plane indicated at 1414 in Figure 12.

Figure 15 is a view in transverse section through the machine showing in end eleva- Figures 1 to 11 inclusive. H I Figure 16 isa fragmentary detail in plan of the napkin positioning device illustrated in Figure 15. I o p Like parts are identified by the same reference characters throughout the several views. j 7 V 'P'r'inoipZe of operation 7 I shall first describe the principle ofoperation of the machine with particular reference to the diagrammatic views, Figures 1, 2 and 3 and the sectional view Figure 15. Thereafter the specificmeclianism which actuatesthese parts will more readily be understood. f f,

As previously indicated, the machine is a duplex machineeach side of'which functions independently of the other side to produce cornucopia-folded napkins from the web ofpaper fed thereto.

' ,The paper webs 15 pass over guide rolls 16 and the usual triangle plate 17 whereby the paper is longitudinally folded along'its cen-' ter line.

I The feed rolls 18 and 19 draw the paper feed the folded webs to the creasing and cutting rolls 20 and 21. Roll 21 has alongitudinal slot at 22 in-itsperiphery and roll 20 has a knife 23 which registers with the slot tocut the once folded web into lengths as shown at 25 inFigure 3. l F

The several lengths ofpaper are then fed by means hereinafter to be described across the faces and transversely of the line of bite of the folding rolls 26 and 27. V A tucker blade 28 istimed to strike each length of paper'intermediate its ends to-press its cen-' tral portion between the foldingrolls 26 and 27, whereby a transverse or quarter fold is made to leave the paper in the form of a square of four thicknesses as shown at" 30 bite between these rolls.

As a result of this operation the first cornucopia-fold is made in the napkin at 34, leaving it in the form shown at 35 in Figure 3.

Thelin'e of fold is intermediate the margins of thenapkin andis at a 30 angle.

' The final set of folding rolls is shown at 36 and 37. Tucker blades38 cooperate therewith to make a fold 39 at the opposite side of the napkin blank corresponding in location to fold 34:, but bending the corner of the napkin onto the opposite face thereof from the face upon. which the first corner was pressedby-the first cornucopia-fold.

The second cornucopia-fold leaves the napkin completed in the form shown at 40 in.

Figure 3 with its opposite corners folded oppositely upon different faces thereof to provide the free flaps 41 and 42 which may be grasped alternatively according to the sideof the napkin which is uppermost.

The completed napkins e0 are delivered on edge into the delivery troughs 43 in which packing membersll are reciprocable to compress the napkins into suitable form for peakaging as shown in Figure 2.

Mechanism 7 Having now described the principle of op eration, I shall point out the disposition of the several parts in an actual machine.

The machine'frame comprises end standards. 4 5 and 46 joined at suitable points by -tiej bolts or spacers 47. Brackets at 48 and 49 support the rolls 50, from which webs of paper arefed to. the two parts of the machine. Most of the shafting is journaled in both of the end frame members l5 and l6 and can ries duplicate parts for the performance of like functions at either side of the machine. I The guide rolls extend transversely of the machine and each is carried by brackets at the top of one'of the end members 15 or 46 as is clearly shown in Figures Al and 5. These same brackets support the triangle plates which extenddownwardly with their points projecting toward the center of the machine and toward the line of bite between the felt covered feed rolls 18 and 19. These feed rolls are mounted upon shafts 52 and 53 extending-lengthwise of'the machine and parallel to each other insubstantially a horizontal plane. Shaft 52 carries a pinion 54: driven by a gear 55 on shaft 56 which carries the matrix roll 21 and constitutes the main drive shaft for the machine to which power is'applied throughzpulley 57. V

The creasing and cutting rolls 20 and 21 mounted on shafts 58 and 56, respectively,-are likewise parallel in 1.1l1OIlZOI1tEtl.PlMI6, but are offset fromthe line .of'bite of the feed rolls 18 and 19' so that the folded web is held snugly: about the peripheriesof rolls Band 21. The peripheral speed of thexcut off rolls 20 andi21 is somewhat higher than'that of the feed rolls and I. have found that thereby a clean cut is assured regardless of the chara-cterof the paper.

Immediately below the: line of bite between rolls 'and 21, is a conveyor system for receiving the blanks'or lengths of once folded webs andsupporting them in "a position for the quarter fold. The conveyor includes a rear belt or tape running over roll 61 and pulleys 62 and'63, and a front beltor tape 65 running over pulleys 66 and 67. The roll 68 interacts with roll 61 to feed the paper downwardly between tape 60 and guide plates 69 and 70 whichihave edges'approximately upright for the guidance of the web. Plate 69has its apex fitted into a groove in roll 68 and strips thepaper therefrom while tape r arm 72. The tuckerblade .is notched at 71,

as is best illustrated in Figure 11, to pass tape 60 so that the tape maybe extended past the range of movement of the tucker blade for adequate support of theadvancing 1 sheet.

Rolls 26 and 27 maybe disposed immediately beneath the primary shaft 56 of the machine and have their axes disposed in a common vertical plane extending lengthwise of the machine. The rolls are preferably provided with yieldable inserts of rubber or the like as shown at 73, which are so synchronized as to bite the paper at the time a V fold thereof is thrust between them by tucker blade 28. The yieldable inserts project normally beyond the peripheries of their respective rolls and hence contact initially somewhat to the left of a plane, oining the axes of the rolls as viewed in Figure 15. Thereby the paper i'spositively plucked from the tucker blade and firmly'creased at its fold line formed between guideplate's 69 and 7 0;: a

As the quarter folded napkin leaves rolls 26 and 27, it isheld to the periphery of roll 27 by means of a belt or tape which runs about roll 26 and'pulley roll 76; This, belt delivers the napkin to another conveyor systemp which includes the upright guides 77 and78, and a 'co-operatingset of'belting or notched, as'shown at 83'inFigure 9, in order that the operating edges of these "tucker blades may pass the conveyor beltsor tapes 79.

Each of the two pairfof folding rolls'31 and 32 is 'inclined downwardly in a vertical plane toward the center of the'machine. The inclination of the rolls makes it inadvisable to mount tucker blades 33' upon swinging arms such as are used for the support of tucker blade 28. Accordingly, a guidewayg85- is provided'upon which .cross heads 86 .aregreciprocable to carry thetucker blades 33.

. After the napkin receives itsfirst cornucopia-fold between rollers 31 and 32, it leaves such rollers on a table 90jwhich is inclined to correspond with the tangential plane which includes the line of bite between such rollers.

The newly folded margins of theblank 35 delivered by these rolls will necessarily be in parallelism with the line of bite between the rolls at the time of delivery. Inasmuchas the line'of bite between rolls36 and 37 is likewise parallel to a ve rtical plane including the newly folded edge of the blank, and inasmuch as the final fold'must' be made at an-angle to such plane, itbecomes necessary to effect an adjustment of blank 35 angularly about the point of the blank as viewed in plan in Figure 16. Table 90 is slotted. at 91 to provide a passageleading'to therolls 36 and37 forthe final fold'and, to put-the'above requirements differently, it isnecessary toadjust the napkin so thatits newline offold maybe brought into registry with "the slot In order to accomplish this, astop is provided at 93 upon the table 190," and asmall wheel 94L rotates near the uppermargin of the inclinedftable in the path of the blank asit issues from rolls '31 and 32. The rate of rotation of wheel 94 exceeds the normal rate of advance of the blank and consequent ly when thepe'riphery of wheel 9th engages the blank near "its wider 'end, it accelerates v "the motion of this end of the blank and throws the blank about'an imaginary axis at its point into engagementwith stop 93.

In this position the prospective final; fold line of the blanklregisters with the guide a slot 91 in table 90, and the'tucker blade 95 passes downwardly'through saiduslot giving the blank its final cornucopia-fold and pressing such fold between .rolls 36 and 37,- tofbe creased thereby; f 1 l v r The napkin issuing from between rolls 36 and 37 passes downwardly through slots in the vertical guides 96,-into Contact with delivery table 43 and beneaththe'confining plates 97.- It is now in the path of one of the packingmembers whichare carried by cross heads 98 reciprocable in guideways;

2; formed by blade 23 must be synchronized withv e 3. moving parts derive the1r 1110131011 from or are roll 26 through intermediate gears at 117,

geared together at 110 (Fig. 4) and determine the rate of paper travel. The ratio of Aotuatiag connections It will benoted thatall of the parts which act directly uponthe napkin to fold or crease itsubsequeiitly to thecutting operation perthe movement of rolls 20 and 21 in order that the several folds may be formed properly with referenceto the ends of the blank severed by blade 23. For this reason all of the connected mechanically with roll 21, through which power is suppliedto the machine.

The gears 54' and 55, already mentioned,

drive the feed rolls 18 and 19 which are these'gears is such that the peripheral speed of the feed rolls will be considerably slower than that of the cut off rolls. This has two advantages. The cutting blade is found to operate smoothly on the, softest napkin paper under such circumstances. Also itis possible to vary'the length of the napkin by changingthe relative rate of paper feed While always pr'eserving the speed advantage of the cutting roll. For this purpose one I or both of the gears 54 and 55 are interroll 26. r

changeable with other gears having a different number of teeth to Vary the relative driving rate; Thereby the length of the napkin may be varied tosatisfy commercial requirements of, for example, 12 to 14 inches and the wear in the felt covers of the feed rolls may also be compensated by proper change gearsto make it possible to use thefelted rolls over longer periodswithout replace-- ment such as is ordinarily madenecessary by paperv feed resulting from shaft 56 through a central gear114 thereon and an intermediate pinion which meshes with a gear 116- on the shaft which carries Pulley 61 for guide belts 60 is driven from 118 and 119. Pulleys 62 and 63 run idle. The latter pulley holds the two runs of belt 6O close together to reduce the de'pth of slot'required .at 71 in tucker blade 28; r

Pulley 66, carrying the guide belt 65, is

driven from roll 27 while pulley 67 runs idle. Roll 7 6 is driven from-roll 27 and is grooved to receive belt 7 5 which also runs in grooves in'roll 26. f P I Belts 7 9 run directlyupon grooves in roll 27 and'pulleys 80-and 81 run idle. Pulley 80 holds the two runs ofbelts 7 9 close to-- gether-to' reduce the .depth'of slot required at 83 in tucker blade 33. V

port the. packing plates 44.

Shaft '120' carries the large'gear 121 as shown in Figure 4 by which it is driven directly from the power shaft 56. I Shaft .120

is an important shaft in -the actuation of any of the oscillatory and reciprocable parts 4 as will hereinafter be described. It also carri'es gears 122 which will be noted .just inside of the frame members in Figure4and which drive intermediate gears 123 mountedon studs carried by said frame members. These 7 intermediate gears have helical beveled teeth at 124 meshing with similar teeth-out at the ends of the first cornucopia folding rolls 32.

Rolls 31 are driven from rolls 32 :by'spur gearing at 125. Rolls 36and 37are driven by chain 126 from shaft 56. -Shaft58 actuates tucker blades'28 by means of crank 127, connecting rod 128, crank 129, and shaft136, which carries arms 72. 1'

Shaft drives the tucker blades for the first. and second cornucopia foldsand. also drivesthe packers as follows:

'The reciprocable tucker blades 33 for the first-set of cornucopia folding rolls are driven from shaft 120 by crank 130, connecting'rod 131,crank 132 (Fig. 4) rock shaft 133 (Fig. 5), rockerarms 134, and links 135. (Figs. 9and15.)

The oscillatory tucker blades for the second set of cornucopia folding rolls are driven from shaft 120 by crank 140, connecting rod 141. (Figs. 4 and5), crank 142 (Fig. 7 rock shaft 143, crank disk 144 (Fig. 4),connect- 'ing rod 145, crank v146, rock shaft 147, arm

148, flexible link mechanism 149, crank and a set of gear sectors for rotating the tucker blades 95 oppositely on the same axis. The mechanism is shown in Figs. 4, '7, and 8 and includes gear-sector 151 connected with crank 150 and mounted on rock shaft 152. Sector 153 meshes with sector 154 on sleeve 155 to which one of thetucking blades 95 is connected. Gear sector 156 meshes'with sector 151 and oscillates shaft 157jon which seetor 158 is mounted to oscillate sector 159 and shaft 160 which carries the other tucker 95. Thus the two tuckers are coaxial and are opperated oppositely in synchronism. i

The'packers 44 are operatedfrom shaft 120 (Fig. 10) by means of arms 164 mounted on rock shaft 143, the driving connections to such shaft having been described above. Arms 164actuate links 165 connected to slides 9.8 upon which rods 167 are mounted to sup- (See also .Figures 4, 5, and 15.) The rollers 94 which adjust or position the 7 partially completed napkins are driven by belts 170 from pulleys 171 onshaft120.

The modi eapommgam The entire" organization of the modified construction shownin Figures 12.to 14 inclusave is very similar'to-that already described,

the chief diiferencesbeing a slight rearrange-' ment of the parts for greater compactness and a different mechanismfor producing the final cornucopia fold. a

The rearrangement of the .parts'is of no' cornucopia folding rolls were in parallel ver-.

tical planes, as shown in Figure 2. In order to produce the angularly disposed final fold in the napkin itwas necessary to adjust. the

napkin with reference to the line ofi bite :of the final rolls by means of thebelt-driv'en friction wheels 94-. This necessity. iseliminated in the modified construction by setting therolls '36 and 37 at an upward andin-- Ward inclination as clearly appears in all of. the views illustrating the modified construc-,

tion. Figure 12 shows-the machine partially disassembled in order tocompletely expose the :inwardly and upwardly inclined final folding rolls 36 and 37in their proper relation to the first cornucopia rolls 32and 33 which latter rolls correspondin all particulars to those already described. I

The disposition ofthe final folding rolls 36 and 37 in the modified device issuch that their angle will-correspond "exactly with the required angle for the final fold. The table upon which the napkin is delivered from the first cornucopia fold rolls 32 and 33 is.

made up of first and second guide plates 175 and 1'? 6, the former of which strips the napkin from the first cornucopia fold roll. The guide plates are separated to provide an angularly disposed slot 91" corresponding with the vertical plane whichuincludes the.

line of bite of rolls 36 and 37 andhence corresponding with the desired angular disposition of the final fold, (See. Fig. ll.)

Because'of the fact that the final folding rolls 36 and 37 'areangnlarly, related in themodified construction it is no longer possible to use the same tucking blade arrangement which was utilized in the first described embodiment of the invention. Figure 13 clearly showsthe modified arrangement of tucker-blades 38f whereby such blades are. mounted upon angularly, related shafts 178 i and 179 intergeared by segments at'180 and.

operated by arm 181 which is linked flexibly at 182 to a connecting rod 149 for operationfrom rocker arm 148 in the same manner as the tucker blades first described.

It will be:understood that this modified plifying the machine by eliminating all nec-' conveyor or folding mechanisms at all points. 7

in its path of travel This not only makes for'great compactness in the machine. but eliminates much of the difficulty heretofore experienced in uneven folding. A feature of e the machine by whlch this result is accomplished consists in the u'se'of conveyor tape belts and. tucker blades which are notched to. pass such belts thereby enabling the pa per to be tucked even while it is supported by the conveyor system Reference has already been madeqto the. fact that the machine is adapted to produce varying lengths of napkins; vIt is an impon tant fact that varying widths of napkins may also be produced without any change or adjustmentof the mechanismbythe simple exi pedient offeeding varying widths of paper to the machine. In previous types of napkin folders with which I have been familiar this;

has not been possible due to the use of guides and other structure, in the pathofthe free.

edge of the moving blank; Inspection of the" present machine will disclose that the blank is gu ded at all points by conveying and folding mechanism acting on the faced the,

blank, The position ofthe blank in the machine is determined entirely by its folded marginpassingfrom' the folding plate .17 In other words the apexof suchplate determines the plane in which'the folded margin I of the sheet moves throughout themachine. It Wlll' befobvious that a mere increase in the widthofthe paper will have no effect other;

than to increase the extent to which the blank. I y

will project from this predetermined and fixed line of movement of its folded margin. There are no guides which requireadjush ment and consequently it is possiblet o pro-- duce any desiredsize of folded napkin Within. commercialrequirements by changing the width ofpaper for the purposeof controlling the width of the completed napkin and changing the gearing which drives the feeding rolls for thepurpose of altering the length of the completed napkin. s

It. will be found upon comparison of the, machine with the statement of objects .out. lined above that the machine fully. satisfies such. objectsandis'capable of highly accu rate napkinfolding work to produce the style of napkin shownat 40 in FigureB. 1

I claim: 1

the combination with a set'ofpaperconverb ing'rolls andatuc'ker blade movable to and from said-rolls and adapted to thrust paper 1. In adevice of the character'described, arrangement is simply an expedient for sim therebetween, of paper guiding and. convey ing means arranged to carry paper trans? versely of the path of movement of said tucker blade past said rolls and comprising a narrow belt, a pulley adapted to hold the return length of the belt adjacent the operative length thereof whereby to reduce the clearance required in the tucker blade for such belt, the tucker blade, being notched to pass Said belt.

2!- In a device of the character described,

. the combination with a pair of folding'rolls,

of paper'supportingandguiding means compris ng aiconveyor belt adapted to carry pa- 2 0 belt and mounted for movement between said per past said rolls, and co-operative guide plates opposing said belt and spaced from each other in the direction of-paper advance at a point substantially in a plane tangent to the line of bite between said rolls, together with a tuckerblade notched to receive said guide plates to and fromthe line of bite between said rolls whereby to be adapted to thrust between said guide plates and into said-rolls paper'supported, guided and con- ,veyed'by said means.

3." In a device of the-character described,

the combination of a pair of creasing rolls,

' each provided with a longitudinally extendingyieldable rib projecting somewhat from the adj'acent'peripheral portions of the respective roll and means for driving said rolls in synchromsm, said ribs being disposed for registering engagement during therotation of the rolls.

4. In a device of the character described,

the combination of a pair of oreasing'rolls,

, each provided with a longitudinally extending yieldable rib projecting'somewhat from theadjacent peripheral portions of the respective -rolland means for driving said rolls in synchronism, :said ribs being disposed vfor registering engagement during the rotation of the rolls,'together with a tucking blade movable to and from said rolls and synchron ized therewith to reach its maximum approach toward said rolls substantially co-incident with the engagement ofsaid ribs, said ribs being adapted to pluck material from said blade '5. In a device of thecharacter described, thecombination with a set of creasing rolls provided with registering longitudinallyextending and radially projecting yieldable ribs adapted to come into engagement slightly before reaching the normal line ofbite between said rolls, means for feeding material past said rolls and a tucking blade movable across the path of such material toward and from the line of bite between said rolls, said tucking blade'being synchronized with said rolls whereby to reach its mostadvanced position substantially coincident with the'time of engagement of said ribs, said position being such that said ribs are adapted to pluck mate= rial from said blade. 9 v

6. In a device of the character described, the combination with means for feeding material along a given path including spaced guide: plates intermediate of'said path, of a tucker blade movable transversely of said path intothe space between said guide plates whereby to be adapted to fold therebetween jecting yieldable rib portions adaptedfor cooperation in the engagement of material to be fed between said rolls-slightly before such material reaches the line of bite therebetween.

8. In a device of the character described, the combination with apaper converting machine including means for severing blanks of paper and means for acting upon said blanks to fold'them, of-a set of actuating connections synchronizing the movement of said severing means. and said folding means, a set of rolls controlling web advance to said severing means and normally operated at a materially'slower rate than said'severing means,

and actuating connections between one of said rolls-and said first'mentioned actuating con: nections provided with means for varying the relative rate of operation thereof whereby tofeed differing lengths of material through.

said severing means. i. I v H 9. In a device of the'characte-r described, the combination with'a set'of feed rolls of a set of cut off rolls, andactuating connections for said rolls so timed as to operate said out OK rolls at a higher peripheral speed than said feed rolls, said connections being adapted to vary the relative rate of operation of said feed rolls without exceeding the peripheral rate of said out off rolls, togetherwith folding rolls synchronized with said out off rolls and provided with non-yieldable actuating con-.

nections therewith.

10. In a device of the character described,

anism including feed r'o ls,-cut off rolls, and folding rolls, of a'triangle plate positioned above said feedrolls'over which a web of 'materialis delivered thereto longitudinally creased, and conveying and guiding means positioned alongthe path of material advancebetween the several rolls and adapted the combination with pa er converting mechto act with said rolls substantially continuously upon the face of the material only, whereby to maintain such'material in a path determined by the point of its entry in the machine irrespective of the Width of the material.

11. In a device of the character described, the combination of paper converting mech anism including feed rolls, out off rolls, and

folding rolls,.conveying and guiding means interposed between certain of said rolls and adapted for contact with the face of the paper only, a triangle plate having its apex above said feeding rolls and adapted to crease paper entering said feed rolls, the apex ofsaid plate being determinative of the line of travel of the folded margin of the paper through the converting mechanism, actuating connections between said'rolls, and means for varying the relative rate of operation of said feed rolls with respect to said cut off rolls without exceeding the peripheral speed of the latter, whereby varying sizes'of paper blanks may be handled by said converting mechanism. 7 i 12. In a devlce of the character descrlbed, a means for producing a cornucopia fold lIla quarter folded napkin comprising means for advancingthe napkin along a predeten mined path, folding rolls disposed ad acent said path with their line ofbite at an acute angle to one side of the quarter folded nap kin as it advances upon said path, and a tucker blade adapted to thrust an intermediate portion of the moving napkin between said folding rolls when the line of bite thereof registers with the desired fold line in said napkin. 7

13. In a device of the character described, the combination with web feeding means of a set of blank severing and folding rolls having substantially horizontal axes, and a pair of cornucopia folding rolls having inclined axes adjacent the path of travel of an article delivered by said first mentioned folding rolls, and a tucking blade synchronized with napkin delivery fromsaid first mentioned folding rolls and cooperative with said in;

- ence to the side margins of napkins advancing thereon, and tucker blades cooperating with said inclinedfolding rolls "and synchronized with napkin movement whereby to thrust into said sets of rolls successively the inclined napkin portions registering with is folded to a cornucopia outline.

the lines of bite thereof, whereby anapkin '15. In a device of the character described,

the combination with web feeding rolls .of'

cutofl' rolls adapted to sever blanks" from the web, and paper convertin mechanism synchronized with said out rolls forithegad- Vance and folding of the blanksso severed, said" mechanism comprising conveyor adapted to'receive blanks from said'cut off rolls, a set'of folding rolls adj acentthe path of said conveyor, a tucker blade associated with said folding rollsand adapted to deliver thereto an intermediate portion of a blank 7 I supported by said conveyor, a second conveyor adaptedto receive blanks from said:

folding rolls, "and a secondset of folding 'rolls' having their axes inclined :with refer ence to the margin of a blank supported by I said second conveyor, together with a sec ond tucking blade adapted to press an in clined fold line of a napkin blank so supported into the line of bite of said second folding rolls. I" c In a'device ofthe character described, the combination with web feeding rolls of cut off rolls adapted to-se'v'er blanks from the web and paper converting. mechanism syn-.

chronized with said-cutoff rolls for thead vanceand folding of the blanks so severed,

said mechanism comprising a conveyor adapted to 'receiveblanks from saidicut off rolls,

a' set of'folding'rolls adjacentthepath of said conveyor,'a tucker blade "associated with said'folding-rolls and adaptedto; deliver thereto anintermediate portion of ablank supported by said conveyor, 'a second con veyor adapted to receive blanks from said foldingrol'ls, said second set-of-folding rolls having their axes inclinedwith reference to thewmargin' of ablank'supported by said second conveyor'together with aseeond tuck-' ing blade adapted to press an inclined fold line of a'napkin blankso supported into the lineof bite of said second folding rolls, a slotted table adapted to receive folded napkins 1 from said second folding rolls, a third set of folding rolls having their line of bitevin registry with the slot in said'table, and a:

. tucker blade cooperative with said third set of folding rolls to thrust a fold line of said napkin 'throughsaid slot and into the line of bite of said third set ofjfolding rolls, the slot in said table being inclined with refer ence to the side of anapkinsupported on said table at the time of engagement of the tucker blade therewith. a

17 In a folding machine, the combination with means for feedingthe material along 7 the given path of a set of folding rolls having a line of bite inclined with respect to said path, a tucker co-acting with said rolls to feed therebetween material traversingsaid path, a receiving table at the delivery side of said rolls provided 'witha delivery slot inclined .a material thereover, a tucker movable over with reference to the path of movementof a point above said table into said slot 7 and adapted to fold therein the material tra delivery of material from said rolls .on to saidt'able, guide means associated with the J margins of said table at' either side of said predetermined path, of guide'means for ma versing said table, and a creasing means p0- sitioned beneath said slot to receive, the material from said tucker whereby to crease therein a secondinclined fold.

-18.- In a folding machine, the combination with a pair of creasing rolls, of a receiving table associated therewith and provided with I a slot inclined with reference to the path of slot and extending beyondsaid rolls, a tucker adapted to press Vmateria'l traversing said table through said slot, anda second set of folding rolls adapted to receive material from j said guide means beyondsaid first mentioned rolls. 7 19. In a foldmg device, the combination wlth. means for advanc ngmaterial alongiaterial on said path comprising a pair of plates spaced at either side of a plane intersecting said path at an angle to'the movement of material thereon, and divergent flanges carried by said plates and constituting a table adapt-l ed to support such material in traversing said path, a tucker receivable between said plates and synchronized with said advancing means for action upon anintermediate portion of material advanced by said means along said path, and creasing means adapted to receive such material from the tucker ata point remote from said path.

1 20. In a folding'machine, the combination with means for feeding thematerial along a predetermined path, of a plurality of mutually independent sets ofcreasing rolls, tuckers associated with said rolls for pressing material between the lines ofbite thereof,-'and guide means extending betweensaid rolls, the second set ofrolls having its line of bitesubstantially parallel to the plane in which material is delivered from the first set of rolls,

but angularly inclined in such plane with I respect to the path of-delivery. p SAMUEL J. GAMPBELL.-.

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