USRE22547E - staude - Google Patents

Description

p 1944. E. G. STAUDE Re. 22,547

ADHESIVE APPLYING AND REGISTERING MECHANISM Original Filed Oct. 31,1950 l0 Sheets-Sheet 1 E. G. STAUDE ADHESIVE APPLYING AND REG ISTERING MECHANISM M 9 l t p &

Original Filed Oct. 31, 1950 10 Sheets-Sheet 2 mvn Q Sept. 19, 1944. E. G. STAUDE Re. 22,

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ADHESIVE APPLYING AND REGISTERING MECHANISM Original Filed 001;. 31, 1930 10 Sheets-Sheet 5 HHHHH Sept. 19, 1944. E. s. STAUDE ADHESIVE APPLYING AND REGISTERING MECHANISM Original Filed 001;. 31, 1950 l0 Sheets-Sheet 6 wz/cmvg fil 6. 577700: 19772915771516 P 1944- E. e. STAUDE Re. 22,547

ADHESIVE APPLYING AND REGISTERING MECHANISM Original Filed Oct. 31 1930 10 Sheets-Sheet 7 Sept. 19, 1944. E. G. STAUDE ADHESIVE APPLYING AND REGISTERING MECHANISM Original Filed Oct. 31, 1930 10 Sheets-Sheet 8 INK/7708 @Wfi M Sept. 19, 1944. E. e. STAUDE ADHESIVE APPLYING AND REGISTERING MECHANISM l0 Sheds-Sheet 9 Original Filed Oct. 31 1930 .Sept. 19, 1944. E. G. STAUDE ADHESIVE APPLYING AND REGISTERING MECHANISM Original Filed Oct. 31, 1930 10 Sheets-Sheet 1O mum 7'01? ww/r 6779005 Reiuuecl Sept. 19,1944

ADHESIVE APPLYING AND REGISTERING MECHANISM Edwin G. Staude, St. Paul, Minn., assignor to E. G.

Staude Manufacturing Minn., a corporation of Minnesota Original No. 1,969,106, dated August 7, 1934, Se-

rial No. 492,441, October 31, 1930. Application for reissue June 17, 1944, Serial No. 540,791

44 Claims. (or. 93-36) This invention relates to improvements in machines designed particularly for applying flexible sheets of paper or other suitable material, either glassine, Cellophane, transparent or opaque materials or labels to surfaces of various kinds, and more particularly to envelopes or 1 box board blanks, or any other paper goods, or, in fact, to any material which can be fed.

A very important object of. my invention is to provide an improved machine for automatically gluing windows in paper blanlm such as are folded up into cartons; for gluing windows in envelopes, and in bags and the like, and also for. applying lining sheets of paper material with precision register.

To accomplish the above, I provide among other features, means for holding thin transparent (or opaque) material, including thin cellulose, Cellophane, etc., substantially under a continuous tension before severing, and for thereafter immediately advancing the material to meet a blank to which it is to be glued, and for advancing it at a speed substantially equal to the advancing speed of the blank. By this means,

where required; to provide means whereby the provide means for facilitating drying of the ad-' hesive, to cause quick setting of the same; to provide a construction known, as the "open side feature, which gives the operator an unobstructed view of and access to all of the most important mechanisms; and to provide means whereby adherence of the material, or sticking thereof to the feeding means (due to production of frictional electricity or static") is reduced to a minimum. v

Other important objects are: to provide means for holding the blank in contact with the adhesive applying device, so that adjustment is not required for different thicknesses or sizes of stock Company, St. Paul,

within the range of the machine, with the arrangement 'such as will not permit adhesive to come in contact with the holding means when for any reason the adhesive-transferring platen is opposed to the holding means when no blank is in adhesive-receiving position; to provide belt means (as distinguished from cylinder means) for pressing the window, or other suitable material against the adhesive 01' the blank, to adhesively'connect them, so that in case adhesive is deposited on said pressure means, the adhesive will not, because of the relatively large area of the pressing means in direction of feed, be likely to-r'egister or contact with material which subsequently comes in contact with it to soil the same; to provide a belt structure (in this instance by grooving in direction of feed) having a substantially reduced working-face area so that in case adhesive is accidentally applied thereto,

it will be applied over relatively small areas, and.

any adhesive deposited thereon; to provide an airblast and/or equivalent means for holding the window-forming or other material in contact with the pressing belt or means and to use said air blast or other means to control and regulate the suction or pull of the material, before and after it has been cut. v

A further object is to provide simple means adapted to further control the blank, which includes small adjustable trucks which may be quickly slipped into contact or removed, as required, depending upon the length of the blank to be fed into contact over the surface to which it is to be glued.

Another object of this invention'is to provide a simple timed relationship throughout the machine from the feeder to the delivery end to insure the accurate predetermined position of the blank and material which is to be glued thereto at all times.

Features of the invention include all details of construction shown,' along with the broader ideas of means disclosed in the present embodi ment of the invention.

Objects, features andladvantages of the invention will be set Eiorth in the description of the drawings forming a. part of this application, and

in said drawings Figure l is a plan view of the machine embodying my invention, with the conveyor delivery partly broken away;

Figure 2 is a longitudinal vertical sectional elevation on line 22 of Figure 1;

Figure 3 is an enlarged view of the center and rear portion of the machine on line 33 of Fig-- ure 1;

Figure 4 is complemental to Figure 3 and illustrates that portion of the mechanism nearer the feeder section;

Figure 5 is a detail vertical section on line 55 of Figure 4, showing the eccentric mounting of one of the cam levers;

Figure 6 is a vertical transverse section on lines 66 of Figures 1 and 2, looking in the direction of the arrow;

Figure 7 is a detail elevation of a portion of the roll feed mechanism shown in Figures 1 and 3;

Figure 8 is a transverse section on line 8-8 of Figure 1, looking in the direction of the arrow;

Figure 9 is a detail vertical sectional eleva .tion on line 9-9 of Figure 8, showing the roll Figure 13 shows means for adjusting and securing the truck and is taken on line l3i3 of Figure 12;

Figure 14 is a section on line ll- -ll of Figure 13, showing means for clamping the truck adjusting means; 7

Figure 15 is a detail-view on line l5--l5 of Figure 13, showing how the truck supporting shaft is mounted in its adjusting elements;

Figure 16 is a detail vertical section. on line |GI6 of Figure 7 showing the construction for supporting the adjustable visor or shield;

Figure 17 is a section showing the device for holding the blank against the adhesive app ying means, and the construction which prevents transfer of glue to the feed wheels when stock is 'not running;

Figure 18 is a vertical sectional view on line I8IB of Figure 17 illustrating the adhesive applying means;

Figure 19 is a section on line l9l9 of Figure 1 showing the cam driving shaft, and showing the tripping clutch in section;

Figure 20 is a detail section of the tripping clutch taken on line 20-20 of Figure 19;

Figure 21 is a detail section on line 2|-2l of Figure 19 showing the cutting off cam, together with a portion of the cam arm and connecting rod;

Figure 22 is a detail sectional elevation taken transverselyof the machine and showing one of the mechanisms or grooved roller device for holding the blank in contact with the gluing mechanism, and showing'the bearings and means for driving the mechanism;

Figure 23 is a cross section on line 23-43 of Figure-22; further illustrating the driving mechanism;

Figure 24 is a cross section on line 24-24 of Figure 8; and

Figure 25 illustrates one type of operation performable by this machine, and represents a folding box blank having a window" over which a transparent material, such as Cellophane, has been glued.

In the drawings, 2 generally indicates the main frame which consists of upright side castings connected by suitable crossbars 3. 4 is a spreader which connects the two side frames one to another and supports a bracket 5 (see Figures 3 and 8) which supports Cellophane feeding and cutting mechanisms, as well as the pressing device. 6 is a bracket (see Figure 4) which supports the gluing mechanism, and the cam shaft 38, together with the clutchdevice. I are brackets (see Fig ures land 2) which are bolted to the members 2 and 8, and carry the feeding mechanism.

The feeding mechanism consists ofthe usual feed table 8, upon which the blank or material is laid to be fed one at a time by the feed wheel I on the feed wheel shaft III. A suitable retarding mechanism, generally indicated at ii, is provided to permit only one blank to be fed at a time. To keep the blank feeding surfaces (usually of rubber) clear from lint and dust, there is provided a brush I2 which revolves at high speed, and contacts the feed wheel. Below the feed wheel 9 and co-acting therewith is a suitable rubbercovered wheel l3. (See Figure 6.) Adjustably mounted on each side of feed wheel 9 are disc wheels il-(see Figures 2 and 6) having grooves to receive sprocket chains l5, provided with lugs it. These lugs are so placed and the chains are driven in such timed relation that as each blank is fed from the feeder table I, the lugs i8 catch the rear of the blank, and carry it forward into the machine, also in timed relation. The blanksize adjusting mechanism consists of suitably threaded cross-shafts i1 and I8, on which are respectively mounted brackets i9 and 29 (see Figures 2 and 6).

A suitable element 21 cross-connects the brackets I. The element 2| is provided with side guides 22 and 23 (see also Figure 1) which are adjustable and which engage the sides of the blank to maintain its parallelism to line of feed. Other guiding and controlling rods are indicated at 24, and act to hold the blank upon the feeding chains l5. Suitable idlers 25 are provided, along with means for adjusting them, to take up the slack in the chain ii. The grooved pulleys l4, and the rubber-covered pulley 13 are mounted on a shaft 26, which is driven by a sprocket 21 through a chain 28 from the shaft 29, see Figures 1 and 2.

A spur gear 30 (see Figure 6, also Figure l) is mounted on the shaft 26 and drives a spur gear 2|, which in turn drives the feed wheel shaft I0. Suitable grooved pulleys 32 on the shaft l0 and 33 on the shaft 34 (which carries the brush 12) have the driving connection 35, and-thus the brush I2 is operated.

Referring to Figures 1 and 4: 36 is the main drive shaft and transfers motion to the shaft 31. The shaft 31 is in turn geared to the shaft 38, also to the shafts 29, 39 and 40. The'shaft 39 is geared to the shaft 4| and the shaft In is geared to the shaft 42. The shafts 39 and 4| have feeding collars 43. This is also true of shafts 40 and 42. The location of these feeding collars 43 is such that they advance the blank through the machine without coming in contact with the adhesive.

A feature of the invention relates to means i fer dies of different areas can be attached on the gluing drum for applying glue at any desired location on the article. Referring to Figures 4, 1'1, 19 and 22: There is provided a semi-circular drum 44 (Figure 17) to which is secured a plate 4! for circumferential adjustment. The plate is held for such adjustment by means of beveled elements 49. Clamp member 41 has a corresponding beveled element and is secured by cap screw 48. On plate 4| is a curved zinc etching plate 49, see Figure 18, held in place by screws 59, engaging screw-threaded sockets or openings of the circumferentially adjustable plate 45. The screw holes are placed about three-quarters of an inch apart and are in regular rows at right angles to one another, see Figure 22. By this arrangement, it is clear that the gluing die 49, which is usually a die-cast metal plate, is first mounted on the master plate 49 in any one of a plurality of positions. This plate 49 is one of a series of plates of different areas or sizes which can be attached to plate 45. The plate 49 can then be circumferentially adjusted and then clamped in the correct position by means of the cap screws 48. The drum 44 can then be adjusted transversely of the feed by sliding along the shaft 28. When it has reached the proper position for applying adhesive, it is clamped by screw 55.

By using a curved zinc etching plate as an adhesive impression or printing member, theadhesive can be accurately printed or applied, and by substituting various printing plates the adhesive can at small expense be applied over any desired area and have any desired contour. In order to hold the blank 5| against the zinc plate 49 to feed it and cause it to be properly held while it receives adhesive, shafts i2 and 59 (see Figure 17) are arranged, in this instance below the drum 44, and parallel with its axis of rotation, the shafts being arranged laterally of a vertical line passing through the axis of rotation of the drum. The axes of thedrum and shafts are related substantially as the corners of an isoscelestriangle. Each shaft has attached thereto or integrally formed therewith a series of spaced disks 54, see Figure 18. The working faces of these disks extend slightly above the level of the line of feed, and provide a plurality of spaced narrowsurfaced contacts adapted to engage the under side blank, hold it in printing position and feed it. The areas of these surfaces are reduced to a minimum so that if glue is accidentally deposited thereon, the quantity which they will receive will be very small, and so that a very much smaller quantity will be transferred to the bottom of a subsequently fed blank, .as in a case where a blank is not lnthe position shown in Figure 17 when the printing elements 49 assumes the position shown in that figure. By using the disks and having their peripheries crossing the line of feed, in direction of the drum, and by arranging their axes of rotaition laterally of a line passing through the axis of rotation of the drum 41, the peripheries ofthe disk are so placed that they will never come directly in contact with the adhesive-covered surface of the element 49 and, therefore, only in rare cases will any adhesives be transferred to the disks. If it is so transferred, it will be in very small quantity, so that a correspondingly small quantity can possibly be transferred from the disks to the bottom of the blank 5! and therefore a very small quantity can be transferred from the bottom of the blank, to

the feed rolls 48 or vother feeding elements of the mechanism. This is a valuable feature of the invention. I

In order to apply. the adhesive to the blank, a

certain amount is transferred to theraised portion of the curved plate from thetransfer drumll,seeFigure4. Ifthedisksflwereplaced directly underneath the curved table. then the space between their peripheries and the curved plate would have to be slightly less than the thickness of the stock. Stock, of course, varies in thickness. and for running thinner stock, the

disks '4 would be so close that when the machine was operated without feeding any stock, the adhesive would be transferred from the curved plate 49 to disks 54. This is very objectionable because when the next blank is fed, the adhesive on the disks 54 is transferred to the underside of the blank BI and gums up the rolls 49 on the shafts 49 and 42,and also gums up the belt 99, besides spoiling the stock. By placing the disks 54 in the position shown in Figure 17, that is. one roll on each side of the vertical center line of the shaft 39, and raising the disks 54 slightly above the work line, stock of practically any thickness can be run and with no gumming and spoilage of stock, as aforesaid. In fact, with this construction the spade between the disks 94 and the curved plate 49 can readily be two or three times the thickness of the blank 5| and still hold the blank against the surface of the plate 49 firmly enough to positively properly transfer the adhezinc plate 49 will not come in-contact with the disks 54 on the shafts 52 and 53, but has ample clearance, equal at least to the thickness of the stock so that when a subsequent blank is fed there will be no offsetting or transfer of adhesive 10m the disks 54 to the underside of the blank Since these disks 54 (which are really turned on the shaft) can extend the entire width of the gluing surface, it follows that after once the proper relationship is established between the shafts 52, i3 and 98, no attention need ever be paid to the shafts l2 and 53, even though the outline of the plate 49 is varied throughout the range of the machine.

The sector member 44 is clamped to the shaft 99 by means of a cap screw 55 andcan be ad justed laterally on the shaft, and the beveled surfaces 49, already described, permit circumferential adjustments of the plate 45 and glue printing element 49. A spline 99 prevents rotation of member 44 on shaft 38, but permits lateral adjustment.

The glue supplying means includes a glue pct 91, having a transfer drum 58 '(see Figure 4) rotating in the glue, and a transfer drum 59 delivers the glue to the plate 49. Both the transfer drums 58 and are mounted in overhead bracket 62 which is bolted to a spreader 69, secured to the side frames 6 by means of a cap screw 6|. A beveled or tapered slot 69 is provided in the spreader 99 to permit adjustment crosswise of the machine. The flow of adhesive is controlled through suitable adjusting scrapers shown at 94. The location of the transfer drum 59 is such that the zinc etching 49 will just clear the transfer drum 59 and receive adhesive therefrom.

The shafts 52 and 53 are provided with suit- 'able bearings 85 (see Figures 22 and 23) and have suitable smooth, flat pulleys 63, driven by a rubber covered wheel 01, which is mounted on the shaft 38 and revolves therewith. The bearings for the shafts 02 and 03 are mounted in a bracket 69 which is clamped-on a spreader shaft 3. The shaft 33 also carries the clutch or throwout mechanism I (see Figures 19, and 21) which consists of a member II, secured to the shaft 33 by a key I2 held in place by a set screw 13. Member II has a groove I4 adapted to receive the arcuate part I0 on the clutch arm I8. A clutch pin 11 is held in the on position by the spring I8, which in turn is kept in place by a plate I9. The spring causes the clutch pin 11 vII9 by a suitablebracket I20, clamped in posito be moved into the path of'the pin 90, secured to the member II, which carries the paper regulating cam 32, and the roll feeding cam 93, and

means, not shown, and the member 3|, theretau? lugs I8 on the chain I9, delivering the blank to the collars 43 on the shafts 4| and 39, applying the adhesive through-the action of the zinc etching 49, while the blank II is being held in contact by means of the members 94. then feeding the blank III into the collars 43 on the shafts and 42. The blank then passes to the endless belt or carrier 99, which is driven by the drum I00 on the shaft WI, and is held down on the belt 99 by asuitable top carrier mechanism II3, see Figure 2. This mechanism consists of a series of idler rollers'which bear on the upper surface of the blank, and is secured to a shaft tion by the stud III. The blank next passes undemeath the grooved belt 93, which feeds down the second-material to be glued, as hereinbefore described. I

These bushings are provided with suitable lubricating The mechanism for feeding the material to be glued, cutting the same, and causing it to register with the aforesaid blank as it passes through the machine is as follows: A roll of stock I22,

fore, onlyrevolves when the clutch pin 11 is in Q similar to clutches usually provided for this purpose, but the purpose of this clutch is to stop the cutting mechanism, the feeding mechanism, and the mechanism for taking up the slack to permit continuous pull on the roll.

The shaft 33 is provided with a sprocket 91 and has a bearing in the member 93 which is a part of the bracket 6 and is driven by the spur gear 99, which is keyed at 90. The sprocket 0] drives the shaft 9| (see Figure l) which carries the pulley or drum 92 (see Figure 3) over which such as glassine paper, Cellophane or'other material, is placed on a spindle I23 (see Figures 1,

2 and 7), the spindle being mounted in brackets I24 and I25. Suitable disks I29 and I2I are adjustable on each side of the roll I22 to keep it in position (see Figure 1). A friction strap I23, having a weight I29, and pivoted at I30.

i' rests over the outer periphery of the roll I22 and keeps it from over-running, so that no slack will accumulatefrom the roll as it is fed through the machine. 1

Means for continuously rotating or revolving the supply roll to prevent accumulation of slack,

is an important feature. The present means for accomplishing this operates so that when the feed rolls are at their maximum speed, a tension arm I39 is at minimum speed, but the arrangement is such that the arm I39 has a continuous motion in a manner to exert a continuous pull on v the strip and cause the reel I21 to move conthe grooved belt 93 is stretched around the idler 94, mounted on a suitable shaft 39 and hung on an arm 90, pivoted at 91 in an adjustable sliding box 99. Referring to Figure 4, after the blank has received the impression of adhesive, and has passed between the collars 43 on the shaft 42 and member 44, it then passes on to anendless carrier belt 99 which is driven by a drum I00 on a shaft "I that is driven from the train of gears (not shown)- that drive the shaft 40. The

belt 99 is supported by suitable idler rolls I02,

andthe belt-tightening mechanism I03, I04 and 1 by set screw I08. The belt 99 passes over a a pulley I09 and all of the idler pulleys and the pulley I09 are mounted in suitable frames IIO (see Figure 8) which are carried by brackets III and clamped on the cross shaft 3. A suitable conveyor belt H! (see Figure 1) is provided, consisting of a drum 3, around which the conveyor belt II 2 passes, the drum being driven by a gear' reduction mechanism, generally indicated at II4, driven by a sprocket Hi from a sprocket IIS on the shaft 9I, through a chain I I1.

tinuously. This is a great advantage over the old gravity-operated device which put such tensile strain on the paper that it was frequently irregularly torn or broken.

The material I3I (see Figure 3) is-threaded down through a guide slot I32, and between two The foregoing description includes the mechand I.

bars I33 and I34. These bars are mounted on an oscillating arm I35 and secured to a shaft I30 that contains the slot I32. To provide an oscillating motion for the shaft I36 (see Figure 1) a depending arm I31 is provided, the end of which is connected with a pivotingrod I30 that is connected to an eccentric strap I39 on the eccentric 32 (see Figure 19). The eccentric 32 Is set in the proper synchronizing relation to eccen-' tric 83, which operates the adjustable feeding mechanism hereinafter described, so that as the feed rolls I40, I (see Figure 3) feed the material I3I downwardly at the maximum speed,

the slack will be "paid in by the rods I33 and I34, and as the feed rolls slow down to the stopping position, the rods I33 and I34 will swing outwardly and in that way cause practically a continuous rotation of the roll I22. The material I3I is fed down between the feed rolls I40 These rolls have asmall groove in the center adapted to receive tongues I42 and I43 to facilitate in threading the stock down between the frame andgu ide members I44 and*l45.

A stationary cut-off knife I46 is provided having a movable cut-off knife I41 co-acting there- 1 with. Suitable adjusting screws I40 and I49 are provided for adjusting the'knife to the proper lap.

Other guides for the material are provided below the knife, as indicated at III and III. If the material were fed directly against the belt 88 (which is preferably composed of a rubber and canvas composition), the grab or suction would be so greatthat it would draw the stock between the rolls I40 and I, and if these rolls were set so tight that the stock would not draw, then the stock would not feed down in parallelism,but would become wrinkled when passing through these feed rolls. If the belt 93 pulls too hard on the material vIll before it is cut oil, it will tear during the cutting operation, that is the knife begins cutting on one edge, according to the shear" principle, and before the material is cut oil, and if the suction is too great it tears at an angle, which is very objectionable.

Another feature, therefore, is the use of a rubber and/or grooved lbelt as a feeding means, and as a means cooperable with the blank-advancing belt to press the registered material, which type of belt has greater traction capacity, and when grooved reduces the freezing" effects of static. Another important feature is this particular kind of a belt in combination with some means for lightly holding the material against the working.

surface of the belt, either by the use of gravityactuated roller, or by an air blast, and/or with means for varying the area of contact.

An adiustable shieldor visor I! is provided to keep the material I8I away from the-belt 98, except for a distance equal to two rolls I53,- in the truck I54. This visor or shield I52 extends clear across the belt 93 that is provided with grooves I55 (see Figure 12). The shield I52 has a lateral flange, which is pivoted as at I55 to bracket I51 bolted to the frame I58 (see Figures 2, 7, 8 and 16). In order that the pivot I55 shall be concentric with the shaft 9|, a stud I59 is provided (see Figure 16), which extends in a socket I80 in the end of the shaft 9|. Since the shaft 8| revolves, and because of the difllculty of pro,- viding proper lubrication, and in order that the stud I59 will not freeze to the shaft 9|, a wood bushing I5I is provided. This bushing is specially treated material soaked in oil and therefore requires no lubrication, since there is little load on the bearing at this point. Since the visor or shield I52 is pivoted at the point I'55, it can be swung around the drum 92 concentrically with the belt 93 into any desired position, to regulate the amount of material I3I which is to be directly opposed to the face of belt 93. To accomplish this regulating adjustment, a hand wheel I52 is provided, adapted to tighten up on a belt I58 and clamp the member I52 against the bracket I51. A concentric slot I84 is provided in the casting I51, through which slot, bolt I53 carried by the visor or shield I52 passes. After shield ad- Justment, the same is securely clamped by wheel Each small idler wheel I53, in the truck I54, has a shaft I55 (see Figure 7) rotatably stepped in the'inclined slots I65 of the plates. Each slot is L-shaped with a downwardly directed portion spaced a greater distance from the periphery of the belt 93 than the other portion of the slot. Each shaft may, therefore, be rolled in a direction away from the face of the belt to drop into this downwardly directed portion, thereby preventing its wheel or roll I53 from contactingthe material I3I or belt 93. In this way, the rollers can be selectively positioned, and as many used as desired. The truck I54 is adiustably pivoted on the shaft I88, and is clamped to the shaft by hand wheel I89, see Figures '1 and 12. In order to provide what may be termed a universal adiustment for the shaft I88, and the truck thereon, for bodily moving them vertically and horizontally, and for rotating the shaft, the shaft is non-rotatably attached to member I59 (see Figures 12, 13, 14 and 15) and is rotatably journaled in plate ill, see Figure 15, as at I10 so that the shaft can be rotated when plate I59 is adjusted. Plate III is pivoted as at I12 to member I14 and may swing toward or away from the belt 93 to correspondingly bodily move the shaft I88 and the truck i54 thereon. 'For this purpose, the member I14 is provided with a slot I13, and the member I89 is provided with a slot I18. A

stud I11 extends through these slots andis secured in the member "I and has its opposite ends threaded as shown in Figure 14. The hand wheel I15 engagesthreads I15 to clamp the plate I59 in adjusted position and hand 'wheel I19 engages with the threaded portion I80 to co-act with the bracket member I14 to secure the plate MI in adjusting position. The slot I13 is also shown in Figure 13 in dotted lines and it wi l be noted that the slots I18 and I13 are angularly related, so that vertical and horizontal adjustment of the element I88 may be obtained, by properly ma-' This is of great advantage because if there is any appreciable delay in the motion of the material toward the registration point, accurate registration is imposible. It is notorious in machines of this class that a large amount of material is wasted because of poor registration or failure of registration at thispointj As herein practiced, the material can be held in light but continuous contact with the feed and pressure belt. Heretofore, various devices have been used such as providirig a stop for the material, \but this is not applicable to flimsy materials. The maintaining of a light and continuous tension is an important feature, as is the ability to vary the degree of tension, as well as the area of contact, and the ability to apply the contact nearer or farther away from the severing point of the material.

The shafts of the rolls I53 can be easily raised from the slot portions I51 and put into operative relation, or'v'ice versa, and thus the area and degree of contact can be varied.

Frequently the material I3I is very thin and apt to curl; I havefound that a light blast of air may be employed to hold it against the visor I52 or against the belt 93. For this purpose, a small electric fan I8I'is used and is driven by a motor I82 adjustably mounted as at I83 to direct the blast at any required angle, the motor being driven by the usual electric connection.

As is common in feeding web stock, a great deal of static electricity is generated, and when this comes in contact with a non-conductor, such as the surface of the. belt .93, it follows that it adheres to such surface so strongly, that it is with great dlfllcuity that winding is prevented. It is true that there is "tack" in the adhesive that is printed on the blank, and with which the material III is intended to match up and stick to, yet the tack" is frequently not sufficient to cause the material I3l to stick to the blank, yet it will adhere the belt 93 and wind therearound. If the amount of tack in the adhesive is increased sufficiently to hold the material I8I, then the adhesive is so tacky as to cause stringing" and in a short time the glue will be'transferred to gum the entire machine.

I have devised a means for reducing the static effects by fifty per cent, to-wit: by cutting grooves in the belt 99, so that the contact area is propor- 'the required amount, and in that way greatly tionately reduced without adversely affecting the pressing or feeding function of the belt 99 relative to belt 99, to obtain perfect adhesion of the material I3I to the blank. The grooves, therefore, reduce the static by fifty per cent, provided their aggregate area is equal to the contact area. The grooves may be utilized to receive wire stripper members which can be threaded therein to prevent the material I3I from winding or sticking by means of static, but it has been found that with a reduction of fifty per cent in static effects, this winding is practically entirely eliminated, and, therefore, no stripping means is shown. The grooves also have the advantage of reducing the working area of the belt, so that if adhesive is accidentally applied, the quantity which it can receive is reduced by fifty per cent.

Another valuable feature is that with the light contact made by the rolls I53, slippage may .take place between the material and the belt 93 so that there is never sufficient pull on the material to cause it to tear unevenly while being cut, particularly when the shearing method of cutting is used.

It is contemplated herein to use a fan or-equivalent air blast for maintaining contact of the fed Cellophane or like material with the belt, or to use the light roller contacts I53 separately, or to use these means in combination.

There is also a decided advantage in using a belt instead of a rubber covered drum (92), because it is easier to so time the machine that in case glue reaches the belt at any particular point, this glue will not be so likely to register at some later time with the material I3I as it is fed, until possibly after a considerable number of revolutions during which time the adhesive (which is of the quick setting variety) will have so dried to such an extent that it will not be likely to stick to the material III. In addition, the use of the grooves so reduces the'possible area of contact of the glue that it even more quickly dries and flakes and drops off. Therefore, by the use means is reduced to a negligible minimum.

Referring to Figures 1 and 8, it is to be noted that the Cellophane feeding, cutting and registration mechanism is arranged so that every im-,

portant part can be directly viewed by the operator as he stands at the side of the machine. Moreover, all the adjustable working parts are readily accessible, particularly the rollers 'I 55, and the adjusting means for the shield I52, see also Figure 7.' The adjusting means for the truck I54 is also readily accessible.

I have also discovered that when the fan IN is set at a certain angle, for short work, and the shield I 52 is raised practically out of contact with the material I8I,.the blast of air flowing in the grooves I55 tends to reduce the suction to Just assist-in controlling the material III as it passes down into contact with the blank to which it is to be secured.

Themechanlsm for operating the cut-oil'knife, and for intermittently driving the feed rolls I48 and I, is as follows: The feed roll I48 is mounted oh a shaft I84, and the feed roll MI is mounted on a shaft I85. These shafts have suitable bearings I88 and I81, see Figure 7. The roller I48 is held in contact with the roller I by a spring I88 pressing against the bearing I85, and in order to initially pass the paper between the feed rolls I48I4I, a small cam arrangement, generally indicated at I89, is provided, the raising of which separates the bearing I88 from the bearing I81, and correspondingly separates the feed rolls.

Other bearings are provided at I98 (see Figure 8). Gears I9I on the shafts I84 and I85 establish a driving connection between the rolls I48 and MI. Referring now to Figures 8, 9, 10, 11, the means for operating .the feed roll shafts includes a gear and rack mechanism, comprising a gear I92 driven by a rack I93, the rack being pivoted at a point I94, and motion to the rack being obtained through an addustable connection I95, and aconnecting rod I95, see Figure l, which, in turn, is connected to the eccentric strap I91 (also see Figure 19) motion to which is given by the eccentric 83 on the shaft 38. Byv adjusting the clamping connection I95 in the slot I98, the stroke of the member I95 can be varied, and, therefore, of course, the degree of rotation of the shafts I84 and I85. Each shaft I84, I85 has a gear I92, and connected to each is adisk I99 (see Figure 11) carrying a series of ratchet dogs 288. These ratchet dogs are held into contact with a ratchet wheel 28I by springs 282. The ratchet wheel 28I is keyed to the shaft I84 and a similar mechanism to the shaft I85. The teeth in the ratchet of one mechanism are in a direction to feed the material I3I between the rolls I48 and HI downward and slip over the other corresponding ratchet. 0n the return stroke the opposite ratchet takes effect and the first one slips, so that rotation of the shaft I84 in the direction of the arrow (see Figure 9) is accomplished by the connecting rod I95 moving in one direction, and rotation of the shaft I85 in the direction of the arrow is accomplished by the movement of the connecting rod I95 in the opposite direction.

The purpose of this is to make use of both the forward and return stroke on the eccentric to members and is kept under yielding tension by a spring 285. to a part of the frame on the machine at 285. g

This brake member is fastened The purpose of this brake is to prevent overrunning" and the tension is adjusted so that when the gears I92 reach their maximum stroke, the ratchet 28I will not over-run and thereby cause an un-uniform length of material I8I to be fed. This mechanism for cutting off the material I3I at the dead center point of the eccentric 83 is raised portion is so timed that it will strike the roller 2|. and operate the arm Ill and with it the connecting rodflll. This rod 2III is connectedto an arm 2, which inturn issecured toa shaft 2I2,see1"igure3.,.'1heshaft 2i! ismounted on a suitable bearing and has depending arms 2ll, pivoted as at 2 to casting 2I5 that supports the knife I41.

vide a spring 2i! between lugs 2" on the arm Ill, and lugs 2" on the member. 2I5. From the description, it is clear that as the cam 54 with the projection 201 revolves in timed relation to In order to keep the knife I I41 in shearing contact with the knife I4, I proover the surface of the shield I52, the first few strike the roller 202 when the eccentric "is at dead center, it will produce a short, quick reciprocating motion of the arm and through the connections described, operate the knife I41 and cut the material Ill. In order to get exact adjustment, so that this motion will take place absolutely on dead center, I provide an eccentric bushing 2i! (see Figures 5 and 21) at the pivot of the arm 20! and secure the eccentric bushing into position by a set screw 220. As the bushing 2" is revolved, it raises or lowers the arm 20! and thus regulates the time accurately in which the raised portion 251 on the cam 84 strikes the roller 202.

For the purpose of operating the clutch arm 12 (see Figures 1, 4 and 20) there is provided a shaft I I9 which supports the fork mounting 222 (see Figure 1) for the arm 18. It also supports the shaft 222, on which is mounted a depending arm 224 (see Figure 4), hav ng an inclined radial rollers I52 directly over the shield I52, are placed in the rear of the slot I", the lower part of which is indicated by the reference figure I61, and are, therefore, inactive. As the material continues to be fed downwardly it comes in contact with the grooved belt 92, which is operating continuously, and acts as a continuous feeding means. At this po nt, the rollers I53 are set out into the opposite position in the slot I" on the member I54 and serve to bear the material III against the moving surface 93. From this description it is clear that the material Iii is kept under tension continuously because the speed of the surface 93 is much faster than the speed of the rolls HI and I42. By tilting the fan III at the properangle additional pressure may be obtained as required.

Since the feed rolls HI and I42 are driven intermittently, it follows that the cut-off knife surface 225. The inclined surface 225 isadapted past the gumming or gluing mechanism on this belt" strikes the inclined surface 225, element 224 will be raised and shaft 223 oscillated to in turn rock the opposite end of the member 224 at 228 (see Figure 4). This member is connected to a depending arm 229 on the member 16 by a rod 230. Therefore, when the blanks pass through the machine continuously, the arm 224 will at all times keep the arm 15 raised, and consequently the inclined surface 15 (see Figure 11) during the time when the pin 11 passes this part 15 and, therefore, will have no action on the pin 11, and the machine will operate continuously. Should, however, the blanks not be dellvered to the belt 99, the inclined surface 225 of the depending arm 224 assume the position shown in Figure 4 and cause the arm 16 to drop into the groove 14 and withdraw the pn 11, and thereby de-clutch the mechanism that controls the eccentric 82-83 and cam B4, and these members will remain inoperative until a blank is delivered, at which time shaft 223 is moved to raise the member 18, release pin 11 so that it again engages pin 80.

The operation of the machine is as follows: Blanks are placed in the feeder 8; the feed wheel 9 in revolving, picks 011 one blank per revolution and carries it out over the top of the chain II. Lugs It on the chain catch the rear of the I41 must operate during the period that the eccentric I81 is passing over a dead center. At this point, the projection 201 on-the cam 84 strikes the roller 20! and rocks the knife inwardly and cuts off the material -l3l, which has been fed down to a predetermined length, as hereinbefore described. Directly that the material is severed and being in perfect contact with the moving surface 93, it immediately takes on the surface speed of the belt 93 and meets the blank to which it is to be pasted, in timed relation at the point of contact of the belt 93 with the belt 99. Since the shield I52 is adjustable for different lengths, it is clear that the shield can be rocked counter clockwise and give the rollers I53 a chance to contact with the material III earlier in the cycle of operation by merely lifting the rollers I53 out of the space I61 and permitting them to roll by gravity to the opposite direction in the slot I.

It is, of course, obvious that this machine may be set in front of any folding box refolder and gluing machine; and belted as one unit, so that the entire operation of applying transparent material over the windows of cartons, refo1ding,'

gluing, folding, counting and stacking may be accomplished in one operation. In fact, the mablank and carry it forward in timed relation to be received by the collars 52 on the shafts 22 and H. The blank then passes. over the rolls 84 and receives the imprint of the adhesive from the projection 49 in the proper position. It is then advanced between the rolls 42 onthe shafts 40 and 42. The blank next passes between the belt II and the pressure carrier I it. During this time,

chine is now so constructed that either the conveyor II2 can be used, or it may be removed and the machine will then deliver the blanks directly to a folding box gluing machine.

Another important feature never before accomplished in a. machine of this kind, are the various arrangements bywhich the machine can be quicklyset for different sizes of blanks. In other words, the great advantage is provision of means for obtaining a large size range adjustment, and for obtaining it quickly.

I claim as my invention:

1. A device of the class described including belts adapted to feed material delivered between them, means for delivering material between the belts, and means for varying the area of contact between the material and one of the belts.

2. A device of the class described including two elements adapted to feed material delivered between them, means for delivering material between them, and means adapted to press the material against one of the feeding elements, and

vary the area of contact between the material and said element.

3. A device of the class described including belts adapted to feed material delivered between them, one of the belts having a series of grooves in its working surface extending in direction of feed.

4. A device of the class described including belts adapted to feed material delivered between them, means for delivering material between the belts adjacent; the meeting point of the belts and means for varying area of contact between the material and one of the belts, and varying the degree of pressure.

5. A device of the class described including means adapted to feed material delivered between them, means for delivering material therebetween,,and rollers adapted to act by gravity to maintain contact of the material with one of the feeding means and adjustable to selectively vary the area of contact and contact pressure.

6. A device of the class described including a.

belt, a second belt with which said first is cooperable, means for feeding material toward the belt adjacent the meeting point of the belts and means for directing an air blast toward the hesive of the first, and means for varying the degree of contact of the second material with its ripheries projecting across the line of feed, but

meeting points, and additional means for prevent- .means adapted to receive the material from the- .feeding means and holdit in contact with said transferring means, including a pair of rolls substantially axially parallel with the axis of the drum each comprising a plurality of spaced concentric disks of the same diameter and having peripheries extending toward the drum and across the line of feed, but spaced so as not to contact said adhesive transferring means, one arranged at each side of a line drawn through the axis of rotation of the drum.

8. In adhesive applying mechanism, a rotatable adhesive transferring means, means for feeding material, means adapted to receive the material from the feeding means and to hold it in contact with the transferring means, including a pair of rolls having peripheries extending toward said transferring means across the line of feed but spaced so as not to engage the transferring means, one roll arranged at each side of a line drawn through the axis of rotation of said transferring means, and having their peripheries near one another, and the length of the face of the transfer means in direction of rotation being not substantially greater than the distance between the rotative axes of the rolls.

9. A device of the class described including means for feeding one material, means for applying adhesive to the fed material, means for receiving the material after application of adhesive and advancing it, means for feeding a second material and causing it to register with the first, means for severing said second material into predetermined lengths, means for varying the degree of contact of the second material with its feeding means, and means for applying pressure to the materials to adhesively connect them.

10. A device of the class described including means for feeding one material, means for applying adhesive thereto, means for feeding a second material and causing it to registerwitli' the adspaced from said surface.

, 12. A machine of the class described including means for feeding one material, means for applying adhesive to the fed material, means for advancing the material after application of adhesive, means for feeding a second material and registering the same with the first, and grooved pressing means cooperating with the means for advancing the blank after application of adhesive, for obtaining an adhesive juncture of the material.

13. A device of the class described including means for feeding one material, means for applying adhesive to the fed material, means for feeding the second material and registering it with the first after application of adhesive, and an air blast for holding the material in contact with the second material feeding means as it approaches the point of registration.

14. A device of the class described including means for feeding one material, means for applying adhesive to the fed material, means for advancing the material after application of adhesive, means for feeding a second material toward the advancing means, and registering the same with the first material, means for severing the second material in predetermined lengths, and means for varying the area of contact of the second material with the feeding means before severance.

15.A device of the class described including means for feeding one material, means for applying adhesive to the fed material, said means ineluding a. drum having a plate circumferentially adjustable thereon, said plate having a plurality of openings, and an adhesive transfer element as one of a series of elements of different areas having openings adapted to register with the openings of the plate, and means detachably securing the element and plate by use of the openings.

16. A device of the class described including means for feeding one material, rotatable means for applying adhesive to the fed material, and rotatable means for holding the material in con-- tact with the adhesive applying means, said means arranged so as not to be contactable by the adhesive applying means, and comprising a, plurality of narrow contacting surfaces.

17. A device of the class described including means for feeding one material, means for applying adhesive to a predetermined portion of the fed material, means for advancing the material after application of adhesive, means for feeding a second material toward and registering the same with the adhesive of the first, means for severing the second material, and means for holding the second material by slipping contact with .the secondary feeding means before and during sive, secondary means for feeding a second material into register with the first; means for severing the second material, means for holding the second material in contact with the secondary feeding means while severing, said advancing and secondary feeding means being adapted to press the materials together after severance of the second material, said secondary means having grooves in its working surface.

20. A device of the'class described including side frames, feed means adjacent one of the side frames and movable lengthwise thereof, means for feeding materials to said first feeding means, means for cutting said second material, said feeding and cutting means being arranged adjacent said frame and being supported by means arranged to give an unobstructed view, and accessibility to said means by an operator standing at said frame. Y

21. A machine for feeding and severing thin, pliable cellulosic material having in combination means for intermittently feeding a web of the cellulosic material, means for severing said web 24. A machine for feeding and severing thin, pliable cellulosic material having in combination means for intermittently feeding a web of cellulosic material, means for severing said web, impositive untimed feeding means for holding said web taut prior'to the severing thereof, said impositive feeding means effective for feeding severed pieces of said web, and means for conveying carton stock into position to receive a severed piece of the cellulosic material, said means timed with said initial web feeding an severing means.

25. A machine for feeding and severing ,thin, pliable cellulosic material having in combination means for intermittently feeding a web of the cellulosic material, means for severing said web 'into sheets of predetermined length, said means timed with the mechanism for intermittently feeding the web so as to be actuated during the intermittent non-feeding periods of said web. impositive feeding means for said web effective for positive feeding thereof subsequent to a severing operation, said impositive feeding means effective for holding the web taut during the severing operation, said impositive feeding means com prising a conveyor having a conveying surface into sheets of predetermined length, said means timed with the mechanism for intermittently feeding the web so as to be actuated during the intermittent non-feeding periods of said web, impositive feeding means for said web effective for positive feeding thereof subsequent to a severing operation, said impositive feeding means efl'ective for holding the web taut during the-severing operation.

22. A machine for feeding and severing thin. pliable cellulosic material having in combination means for intermittently feeding a'web of the cellulosic material, means .for severing said web into sheets of predetermined length, said means timed with the mechanism for intermittently feeding the web so as to be actuated during the intermittent non-feeding periods of said web, continuously operative untimed impositive feeding means for said web effective for positive feeding thereof subsequent to a severing operation,

' said impositive feeding means effective for holding the web taut during the severing operation.

23. A machine for feeding and severing thin, pliable cellulosic material having in combination means for intermittently feeding a web of the cellulosic material, means for severing said web into sheets of predetermined length, said means timed with the mechanism for intermittently feeding the web so as to be actuated during the intermittent non-feeding periods of said web, im-

26. A machine for feeding and severing thin,

pliable cellulosic material having in combination means for intermittently feeding a web of the cellulosic material, means for severing said web into sheets of predetermined length, said means timed with the mechanism for intermittently feeding the web so as to be actuated during the intermittent non-feeding periods of said web, impositive feeding means for said web effective for positive feeding thereof subsequent to a severing operation, said impositive feeding means effective for holding the web taut during the severing operation, said impositive feeding means comprising a conveyor having a conveying surface movable in a curved plane conforming to the arc of a large circle with a series of relatively smaller rollers arranged in an arcuate formation conforming to the contour of the arc of said conveyor, said smaller rollers provided with driving means frictionally engaging said large roller.

27. In 'a machine having means for feeding an article, means for feeding thin pliable material to be applied to the article, and means for severing saidmaterial into sheets of predetermined length, and feeding means for holding the thin material at a point beyond the severing means under continuous slipping tension before and during severing, and for thereafter advancing the severed material toward the article.

28. In a machine having means for feeding an article, means for feeding thin pliable material to be applied to the article, and means for severing said materialinto sheets of predetermined length, and feeding means including a contin-' uously moving surface acting by slipping friction for holding the thin material under continuous tension before and during severing and for thereafter advancing the severed material toward the article.

29. In a machine for feeding and severing thin pliable cellulosic material, means for feeding a web-of cellulosic material, means for severing the web into sheets of predetermined length, a continuously operative untimed impositive feeding justable plate,

the severing means adapted to hold said portion taut during the severing operation, and to smooth it, and including a continuously moving surface and rollers gravity moved toward said surface, said means being effective for positively feeding said portion subsequent to a severing operation.

30. In a machine having means for feeding thin pliable material and means for severing the same into sheets of predetermined length, and impositive feeding means effective to pull a length taut during severing and subsequently effective to positively feed the severed length.

31. In a machine for feeding and severing material, means for feeding a first material, means for applying adhesive thereto, feeding means impositively operative for smoothing and holding taut a second material while severing, and positively operative to feed the cut material into contact with the adhesive of the first material after severing, means for delivering the second material into feeding relation with said impositive feeding means, means for severing the'second material while it is held tautly by and during impositive feeding of said impositive feeding means, and

means operating the impositive feeding means at a greater speed rate than that of said second material before it is severed.

32. A machine for feeding and severing thin pliable cellulosic material having in combination means for intermittently feeding a web of the cellulosic material, means for severing said web into sheets of predetermined length, said means timed with the mechanism for intermittently feeding the web so as to be actuated during the intermittent non-feeding periods of said web, a

continuously operative untimed impositive feed ing means operative on a portion of said web which has passed the severing means, and effec- I tive for positive feeding of said web following a severing operation, said impositive feeding means being eifective for holding the web taut during the severing operation, and including a continuously moving surface in feeding relation with the forward portion of the cellulosic material.

' 33. In a machine ofthe class described, first means for feeding a first material, second means rectly into contact with a second material and to 1 ly from end to' end of said length ag 7 means for a portion of the web which has passed and means cooperative with the openings to detachably secure the .plate to the drum.

36. An adhesive applying mechanism, includv\ing a rotatable adhesive transferring means. means for-feeding material, means adapted to receive the material from the feeding means and to hold it in contact with the adhesive transferring means, including a roll having a plurality of substantially V-shaped peripheries of small surface area adiacent but so spaced as not to contact the adhesive transferring means in the absence of the material.

37. In a machine having means for feeding a first material, means for applying adhesive to the first material while it is fed, feeding means for a second material, severing means for the second material, impositive feeding means acting on the second material forwardly of the severing means during severing. and after severing acting to positively feed the severed material, and means by which said feeding means for the first material and the impositive feeding means for the second material are-operated in timed relationship so that the second material is accurately contacted with the adhesive of the first material.

38. In a machine having means including a pair of feed rolls for positively feeding thin pliable material, means for severing the same into I sheets of predetermined-length after it emerges from saidfeed rolls, and slipping friction means acting on the forward free portion of the length to be severed to'talre up slack before severing, and thereafter to advance the severed length dipress such-length by rolling contact progressive- 0111;]. material.

39. In a machine, having means including a pair of feed rolls for positively feeding thin pliable material, means forsevering the same into sheets of predetermined length'after it emerges from said feed rolls, and slipping friction means.

- acting on the forward'free portion of the length for feeding a second thin pliable cellulosic material for contact with the first material, means for severing the second material into lengths after I passing through the, second feeding means. im-

positive feeding means acting forwardly of the severing means for maintaining a taut condition of the second material while being severed, said last mentioned feeding means acting after severing to positively feed the severed material into contact with the first material. 7 34'. In an adhesive applying mechanism, a rotative drum, a plate and means by which it is circumferentially adjustable on the drum, an adhesivetransfer plate, and means by which the transfer plate can lie-attached. in any one of a plurality of locations on the circumferentially ad- 35. In an adhesive applying mechanism, s. ro.

a in any one of a plurality of positions on the plate,

, tative drum, a plate and means by which it is to be severed to take up slack before severing, and thereafter to advance the severed length directly into contact with a moving second material and to press-such length by rolling contact progressively from end to end of said-length against the second material, said slipping friction means presenting a continuously moving endless surface advancing at a speed exactly matching the speed of said second material and against which moving surface the first material is held in light frictional contact, the drag of said moving sur-- face on said length of material which is still unsevered serving to stretch it taut and the continued drag of said moving surface after severance serving to carry the severed length along with it and directly onto the second material.

40. In a machine having means forfeedingthin pliable material, means for severing the same into sheets of predetermined length, and means acting on the forward portion of the length to be severed to take up slack before severing, and thereafter to advance the severed length, including guiding means acting to smooth and maintain a smooth fiat condition of the'severed length as it advances.

41. A device of the class described includingplural feeding means adapted to feed material delivered therebetween, means for delivering material between said feeding means, and means for holding the fed material against the working surface of one of said feeding means and ainst the sec-

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