US1912565A - Box making machine - Google Patents

Description

June 6, 1933. c. F. BROWN BOX MAKING MACHINE Filed April 4, 1930 8 Sheets-Sheet l WMMW June 6, 1933- c. F. BROWN BOX MAKING MACHINE 8 Sheets-Sheet 2 JYqQr/ZVT Iva/id,

I I'- W a Shets-Sheet s C. F. BROWN BOX MAKING MACHINE Filed April 4, 1930 June 6, 1933.

o Hm June 6, 1933. c. F. BROWN 5 BOX MAKING MACHINE Filed April 4, 1950 8 Sheets-Sheet 4 June 6, 1933. c. F. BROWN BOX MAKING MACHINE Filed April 4, 1950 8 Sheets-Sheet 5 Q N m- June 6, 1933. c BROWN BOX MAKING MACHINE s sheets-sheet 6 Filed April 4, 1950 June 6, 1933. c. F. BROWN BOX MAKING MACHINE Filed April 4, 71930 a Sheets-Sheet 7 June 6, 1933- c F, BROWN 1,912,565

BOX MAKING MACHINE Filed April 4, 1950 8 Sheets-Sheet 8 Patented June 6, 1933 UNITED STATES,

PATENT OFFICE CLAUDE F. BROWN, OF CHICAGO, ILLINOIS, ASSIGNOR TO BROWN PiLPER GOODS M- PANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS Box Maxine macaw]:

Application filed April 4, 1830. Serial No. 441,454.

a It is an object of the invention to create a new and improved machine of this character which quickly and eiiiciently performs all of the operative steps necessary to gum, fold and form a blank into a box and to eject said box from the machine.

Another object of the invention is to provide a machine capable of automatically producing a collapsed box in which the vertical walls of the box overlie the bottom of the box.

Still another object is to provide a novel blank folding instrumentality adapted to produce a box of the character described in the foregoing object.

A further object of the invention is to provide a novel blank folding and box-collapsing device which is continuously operative upon a succession of blanks fed thereto, in which the box collapsing means maintains a continuous operative engagement with the collapsed box and delivers said box to the discharging means without releasing said engagement, and which applies continuous pressure upon the collapsed box to hold the adhesively secured parts against separation until the completed article is discharged into the receiving magazine.

Another object of the invention resides in the provision of cooperating blank folding and box-collapsing mechanisms by which predetermined parts of the blank are adhesively secured together, which mechanisms include synchronized rotating cam members.

In connection with the foregoing, another object is to provide continuous means for collapsing the box, in the form of a plurality of unitary structures, each comprising a continuous rotating collapsing cam and discharge worm.

Still another object is to provide a novel machine in which the blanks move in one direction during the feeding movement thereof; in a different direction at an angle to the feeding direction during the box forming operation; and uninterruptedly continue the movement in the last mentioned direction to discharge from the machine.

Another object resides in the provision of various adjustments by which the machine as a. Whole can be easily and quickly adapted for operation on blanks of different sizes and shapes within the limits of the machine.

Other objects and advantages will become apparent in the following description and from the accompanying drawings, in which:

Figure 1 is a side elevation of a box forming machine embodying the invention.

Fig. 2 is a plan View thereof with parts of the driving mechanism omitted to clarify the view.

Fig. 3 is a longitudinal section through the machine taken substantially on the line 33 of Fig. 2 looking in the direction of the arrows.

Fig. 4 is a fragmentary transverse section through the machine on an enlarged scale and is taken substantially on the line 4-4 of Fig. 3.

Fig. 5 is a sectional plan view showing the synchronized drive for the box collapsing mechanism and the adjustment means therefor as seen from the line 5-5 of Fig. 4.

Fig. 6 is a perspective somewhat diagrammatic view of the driving and adjusting means for the box collapsing and discharging me hanisms.

Fig. 7 is an enlarged fragmentary transverse sectiontakcn substantially on the line 7-7 of Fig. 3.

Fig. 8 is an enlarged longitudinal section showing in detail the blank folding and box collapsing mechanisms, one of the rotary cams being also sectional. substantially on the line 8-8 of Fig. 4.

Fig. 9 is a perspective view of a box formed by the machine.

Figs. 10 to 14, inclusive, show box blanks in succeeding steps of formation. Thus, Fig. 10 shows a flat. scored blank after the application of adhesive thereto.

Figs. 11 and 12 show succeeding steps in folding the box blank.

Fig. 13 shows somewhat diagrammatically the box collapsing operation.

Fig. 14 illustrates a complete collapsed box after discharge thereof from the machine.

Broadly considered, the invention contemplates a machine organization adapted to perform a series of operations upon paper blanks fed successively thereto. The machine produces a complete box, the shape and size of which is determined, of course, by the formation of the blanks. The boxes are discharged one by one from the machine in collapsed condition ready for convenient packing. The machine features the production of a collapsed box wherein the vertical side and end walls thereof are collapsed directly over to lie substantially fiat and adjacent to the bottom of the box entirely within the area of the bottom.

The present machine will be described as operating upon a blank 20 of particular form and shape. Such a blank is shown clearly in Fig. 10 as comprising a regularly shaped sheet of paper stock or card-board of suitable weight. The blank, previous to the entry thereof into the machine proper, is provided with longitudinal scores A along each side edge and with transverse scores B along each end edge. The scores A and B are spaced inwardly of the sides and ends of the blank a distance equal to the depth of the box to be formed and designate respectively the side flaps C, the end flaps D, and together define the edges of the box bottom E.

At each corner, the scores A and B intersect and a triangular portion of the blank, defined by the side scores A and a line running diagonally from the corner of the blank to the point of intersection, is cut out leaving a trian ularly shaped tab F at each end of the side aps C. The end flaps D are provided with angularly disposed scores G which extend from the points of intersection of the scores A and B to points intermediate the outer edges of the end flaps, thereby setting apart portions D which are similar in shape and equal in area to the tabs F.- The purposes of each of the scores and of the tabs will become apparent as the description proceeds.

General machine ongam'zation Considering the machine as a whole, the various mechanisms thereof are mounted on and supported by a frame of any suitable construction. As illustrated (see Figs. 1, 2 and 3), the present frame comprises a base 21 having vertically rising standards 22 at each side thereof, which, at their upper ends, support longitudinally-extending, transverselyspaoed, side frame members 23. The pair of standards, at the discharge or rear end of the machine, have a rearwardly extending, integrally formed section 22 adjacent the members 23 which support certain driving elements as will become apparent. Transverse members extend between the side frame members to strengthen the frame but, since various operating mechanisms are supported by said members, they will be more particularly referred to in connection with said mechanisms.

At one end of the machine (the left end in F gure 3) is a blank supply magazine and feedlng device, generally indicated as 24, by which the blanks are fed in succession onto the bed of the machine. At spaced intervals, the blanks are engaged by conveying means, such as endless chains 25, which propel the blanks across the machine bed. As the blanks move, they first pass a gumming or adhesive applying device 26, which applies adhesive to the portions D of the blank, and then a preliminary folding mechanism 27 which turns the end flaps D and tabs F upwardly on the lines of the scores B.

The conveyor means is subsequently supplanted by an auxiliary conveyor 28 which moves the blank into the folding mechanism 29. At this point the blanks are adjusted to proper position relative to the folding mechanism, which mechanism then acts upon the blank to move it in a direction angular with respect to the line of movement thereof across the bed and at the same time turns the side flaps C upwardly. The blank thereupon assumes the form of a box, accurately positioned guide members having, during LllS operation, produced the proper relationship of the parts of the blank which are to be secured together by the previously applied adhesive.

Immediately following the formation of the box, the blank is engaged by a box collapsing mechanism, generally indicated at 30, which first holds the blank during the release thereof by the folding mechanism 29, and then acts to move the side and end flaps inwardly of and downwardly with respect to the bottom of the box. This action is simultaneously effected on the sides and ends and is so synchronized that the abutting relation of the parts to be adhesively secured is maintained without relative movement there between during the collapsing movement.

The collapsing movement is also effective to apply a positive force to the adhesive junctures causing them to adhere, which force is at no time released as the blank is fed in the direction in which the blank moves as it is folded. A discharge device 31, which is so closely associated with the collapsing mechanism as to substantially constitute a part thereof, receives the collapsed box from the collapsing mechanism, and, while maintaining pressure on the adhesively secured parts, conveys said box to discharge into a receiving magazine 32. Suitable driving connections between a main drive shaft 33, journalled in the frame, and the various operating instrumentalities produce a synchronized operation thereof on each blank as it moves rapidly and smoothly through the machine.

The blank feeding mechanism l 0 The blank feeding mechanism may be of any suitable construction and arrangement of parts capable of uninterruptedly supplying a succession of blanks to the machine in spaced relation, with one side edge of each blank foremost.

A preferred form of mechanism is shown in Figs. 2 and 3 as comprising a magazine 34 supported on a rigid cross piece 34 extending rigidly between the side frame members 23 at one end thereof. The bottom of the magazine is disposed at an angle to the horizontal so that the uppermost of a stack of blanks 20, positioned therein, tends to slide toward the bed of the machine. At the front of themagazine is a feed roll 35 rotatable with a driven shaft 36 journalled in the frame members 23 and having thereon a number of circumferentially alined blank engaging members 37, such as rubber feet projecting beyond the surface of the roll.

Substantially beneath the feed roll is an adjustable mouthpiece or guide plate for the magazine comprising preferably a flat plate 38 supported with the upper surface thereof flush with the bottom of the magazine and extending adjacent and substantially tangential to the periphery of the feed roll. The plate is pivotally secured as at 39 at its upper side to a bracket 40 carried upon a transverse rod 41 rigidly secured between the side frame members 23. An adjusting screw 42 on the bracket engages the lower surface of the plate 38 to vary the position of the plate relative to the feed roll.

In consequence, when the plate is adjusted for a desired thickness of stock and a supply of blanks positioned in the magazine, the rotation of the feed roll moves the feet 37 into engagement with the-upper surfaceof the foremost blank and expels it from the magazine between the feed roll and the mouthpiece plate 38.

The blank conmeying means As the blank is ejected from the magazine,

it is guided to a position for engagement by the endless feed chains 25 which move the blank across the bed of the machine.

The machine bed may be of any suitable character which presents a flat surface over which the blank may slide easily. In the present machine, the bed (as may best be seen in Figs. 2, 3 and 7) comprises a pair of elongated, substantially L-shaped rails 43 ar- 65' ranged to extend in spaced, parallel relation longitudinally of the machine intermediate the side frame members. The rails are so disposed that similar legs 44 of the rails lie in the same horizontal plane to define the top surface of the bed, with the other leg of each rail extending downwardly therefrom. Eachof the rails is provided with longitudinally spaced bearings 45 secured thereto beneath the top leg 44, which bearings slidingly engage transversely-extending framesupporting rods 46, 46 extending between the side frame members 23.

- The rods 46, 46 support the bed rails in the machine but permit relative lateral movement thereof to permit adjustment of the bed for blanks of diflerent sizes. To this end, elongated screws 47 are rotatably journalled in bearings 48 in the side frame members, collars 49 being provided on either side of the hearings to prevent axial movement of the screws relative thereto. The screws extend inwardly of the machine frame in substantial parallelism to the bed supporting rods 46 and have screw threaded engagement with nuts 50 rigid with the bed rails. The outer end of each screw projects through its bearing 48 beyond the respective side frame member and is squared, as at 51, to receive a wrench. By turning the screws the bed rails may be moved laterally to vary the distance therebetween and thus adjust the bed of the machine for different classes of work.

In this instance, two of the screws 47 have been shown for adjustin each of the bed rails. In order that per ect relative alinement of the rails may be maintained, means is provided for turning the screws for each rail in unison; Referring to Figs. 2 and 7, each screw carries a sprocket 52 rigid there with. The sprockets on each side are alined longitudinally of the machine and a chain 53 passes about the alined sprockets. Thus, uniform adjustment of each bed rail may be produced by rotating the proper one of the screws on either side.

Each of the upper surfaces of the top legs 44 of the bed rails is recessed, as at 44 (Fig. 7), near the adjacent edges thereof, to pro vide a longitudinally extending channel or guideway slidingly to receive and sup ort the feed chains 25. The chains are endless and are supported, at one end of their run, by sprockets 54 (Figs. 2 and 3) axially splined on a driven shaft 55 journalled in the side frame members 23 beneath and in therewith. The sprockets 56 are also suitably mounted for movement with said rails.

Each of the chains carry a plurality of spaced fingers 58 thereon projecting outwardly to engage the rear sides of successive blanks, corresponding fingers on the two chains being arranged in pairs simultaneously to en age said blanks and convey them rearwar ly across the bed. of the machine.

The proper positioning of each blank relative tothe bed of the machine, as said blank issues from the magazine, is accurately determined by guide means, such as the opposed L-shaped guides 59 (Fig. 2) extending forwardly from the front end of the bed to such position beneath the feed roll 35 that they guidingly receive the ends of the blank as it feeds from the magazine.

Other guide means is provided for engaging the upper surface of the blank, which guide means extends the length of the bed and serves to hold the blank closely against the feed fingers during the movement of the blank thereby. Thus, a transverse bar 60, supported from the side frame members, carrles a pair of spaced downwardly extending brackets 61, to each of which a narrow elongated guide member or strip 62 is secured. The strips are positioned in such vertically spaced relation to the bed that a blank may pass therebetween but the upper surface of said blank will be engaged by the strips which act as a drag upon the blank to hold the blank against the feed fingers.

The brackets 61 are suitably adjustable longitudinally of the transverse bar 60 and the preferred position of the strips 62 relative to the blank is such that the strips engage the blank intermediate the outer ends of the blank and the adjacent feed fingers. Moreover, for a purpose which will hereinafter become apparent, the outer edge of each strip 62 is substantially in registry with the adjacent end score B. Generally, the front ends of the guide strips 62 will be .turned upwardly as at 63 adjacent the magazine to insure passage of the blank therebeneath.

The space between the bed rails 43 is closed by a fiat plate 64 supported by the rods 46 and 46*, the upper surface of which lies in the plane of the top leg 44 of the guide rails. The plate supports the central section of the blank during its passage across the bed.

The gumming mechanism The gumming or adhesive applying mechanism 26 is so synchronized with the movement of the feed blank that adhesive is applied to the triangularly shaped surfaces D (Fig. 10) of the blank as the blank moves beneath the gumming mechanism. As shown in Figs. 2 and 3, a driven shaft 65 is rotatably journalled in bearings 66 on the side frame members 23. The shaft 65 carries a doubleend gum applying construction comprising a pair of spaced collars 67, each of which carries a pair of radially extending legs 68 having arcuately shaped gum-applying segments 69 at the outer ends thereof. The gumapplying segments 69 are triangular in shape and the arrangement of parts and synchronism of the moving elements is such that, as the blank is moved beneath the gummer by the feed chains, the gum-applying segments 69 successively engage the triangularly shaped sections D of the end flaps of the blank to apply gum thereto.

Gum is supplied to the segments 69 in any suitable manner, as by a gum-applying roll 70 mounted for rotation with a driven shaft 71. One side of the roll is immersed in a supply of gum contained in a reservoir 72 and an adjustable wiper 73 determines the amount of gum carried from the reservoir by the roll. The periphery of the roll is adapted to be engaged by the outer face of the segments 69 during the rotation thereof, which segments thereby receive a supply of gum for the next blank.

The preliminary folding mechanism The purpose of the preliminary folding mechanism 27 is to turn the end flaps D and tabs F upwardly with respect to the blank along the scores B prior to the delivery of the blanks to the folding mechanism 29. Any instrumentality which will accomplish this purpose is suitable and the preferred mechanism is illustrated as comprising a pair of elongated cam members 74 (Figs. 2, 3 and 7) secured upon the top legs 44 upon the bed rails 43.

The cam members have cam surfaces thereon disposed to engage the under sides of the tabs and end flaps of the blank as the blank moves from the gumming mechanism. From this point, the cam surfaces rise or slope gent ly upwardly at their outer sides to fold the tabs and end flaps along the lines of the scores B. Preferably, in order to break the folds thoroughly so that the tabs and flaps will retain a substantially Vertical position when released by the cams, the cam surfaces at their intermediate points are arranged to overturn the flaps a substantial distance, as indicated at 75 (Fig. 7). Subsequently, the slopes of the cam surfaces return to a vertical position to hold the tabs and flaps upright and these vertical surfaces continue substantially to the end of the bed of the machine.

The outer sides of the longitudinally extending guide strips 62 adjacent the folding portions of the cams 74 are beveled to provide a relatively sharp marginal edge bearing down upon the surface of the blank adjacent each of the scores B, thereby positively insuring that the blank will be folded along the lines of the scores.

In consequence of this arrangement, as the blank reaches the end of the bed, the end flaps and tabs are vertical with res ect to.

the rest of the blank, in which condition the blank is delivered to the folding mechanism 5 29.

Preferably, auxiliary feed means, traveling at a higher rate of speed than the feed chains, is provided in order to deliver the blank to the foldin mechanism. This means (see Figs. 2, 3 an 7) comprises an endless belt 76 extending in the direction of travel of the feed chains 25 and disposed substantially therebetween. The upper run of the belt 76 moves in an aperture 76 formed in the center bed plate 64 so as to be flush with the top surface of the bed and is carried at one end by a driven pulley 77 mounted for rotation on the rod 46. The other end of the belt turns about an idler pulley 78 rotatable on a short transverse shaft 79 supported from the center bed plate 64. I

Immediately above the auxiliaryfeed belt 76 is a series of longitudinally alined weight members in the form of rollers 80 arranged to engage the upper surface of the blank and to hold the blank firmly but yieldably against the auxiliary feed belt. The rollers 80 are journalled for rotation between a pair of spaced brackets 81' which are pivotally su pended from a transverse support 82. The pivotal mounting of the rollers permits them to be withdrawn if for any purpose it becomes necessary to obtain access to the blank at this position. Each of the rollers preferably has individual vertical movement as mitted by the bearing slots 83 in the brackets 81 to allow a limited vertical movement of the roller as the advancing edge of the blank passes thereunder.-

It is preferred that the end of the central bed plate 64, which includes the aperture 7 6, be formed as a separate section 84 (Fig. 2). This section 84 is substantially T-shaped in form to provide laterally extending portions 85 for supporting the blank as it passes beyond the ends of the rails 43 of the bed. Brackets 86 (see Fig. 7) on the transverse rod 46 support the section 84 in place.

The folding mechanism Generally, the blank folding mechanism comprises what may be termed a plunger folder; that is, the blank as it is delivered to the mechanism is adjusted accurately to overlie an aperture which, as far as the size of the blank is concerned, is precisely the width of the bottom portion E of the blank. A downwardly moving plunger device engages the bottom portion of the adjusted blank and, moving theblank bodily through the aperture, folds the side flaps C upwardly along the line of the scores A.

The plunger mechanism is best illustrated in Figs. 1, 2, 3, 4 and 8. The side frame members 23 support therebetween a substanpertially rectangularly shaped frame 87 (Fig. 4) which is spaced rearwardly of the machine a short distance from the end of the bed. The frame provides a lower overarm 88 which extends directlybetween the side framemembers 23 and an upper overarm 89 paralleling the lower overarm.

The lower overarm 88 carries a pair of spaced depending brackets 90 which support an L-shaped guide 91 therebetween for rocking movement relative thereto on transversely alined pivots 92. The ide 91 is disposed with one leg thereof horizontal substantially in the plane of the bed and with the other leg extending upwardly from the rear side of the horizontal le The guide 91 receives the afvancing side of the blank as it moves into the folding mechanism and a pair of spaced stops 93 (Fig. 8) engage the front end of the blank to determine the position thereof relative to the front edge of the horizontal leg of the guide.

The stops 93 are. capable of adjustment toward and from the front of the guide in any suitable manner, as by screws 94 carried by the stops and having screw threaded engagement with stationary arms 95 on the guide.

The pivotal mountin of the guide 91 is for the purpose of of the guide to be depressed as the blank moves into engagement therewith, thereby insuring that the blank will be received. upon the (ppper surface of the horizontal leg of the gm e.

This pivotal or rocking movement of the guide is preferably cam actuated (see Figs. 4 and 8) by a cam 91 rigidly mounted upon a driven shaft 118 (the character and purpose of which will be presently described). A cam follower 91 carried upon a yoke 91 pivotally connected to the guide 91 has an permitting the front edge adjustable bolt and slot connection 91 with the yoke. Gravity holds the cam follower against the cam surface.

The relationship and timed action of the parts is such that, as the leading edge of the blank moves beneath the plunger, the forward edge of the guide 91 is depressed or lowered out of the path of movement of the blank. Hence, even if the blank bows or bends somewhat while the leading edge is unsupported, the blank moves uninterruptedly into position. As soon as the leading edge of the blank has moved to an overlying position relative to the guide, the cam 91, through the intermediate cam follower and linkage, raises the guide 91 to its normal osition where it supports the leading side ap of the blank during the folding operation.

The guide is spaced rearwardly of the end of the bed a distance which is equal to the distance between the side scores A on the blank (see Fig. 8). This spaced relation between the front edge of the guide and the rear edge of the bed is capable of longitudinal adjustment in any suitable manner as by providing an adjustable mounting of the b d section on its supporting brackets 86.

eans are provided for maintaining the vertical relationship of the upturned end flaps and tabs while the blank overlies the aperture between the section 84 and the guide. To this end, a pair of vertically disposed spaced guides 96 are suspended by brackets 97 from the lower overarm 88 and occupy positions which are (see Fig. 2) substantially in longitudinal alinement with the vertical rear ends of the cam members 74.

That portion of each guide 96 which spans the space between the bed section 84 and the guide 91 is offset outwardly, as at 98, from the plane of the end portions. As a result, when the parts are correctly adjusted, and the front side of the blank is in abutting engagement with the stops 93, the tabs F on the blank are held substantially vertical by their engagement with the end portions of the guides, while the end flaps D assume a more inclined position relative to the vertical, as determined by the offset portions 98 of the guide. This relationship of the tabs and end flaps is apparent in Fig. 4.

The plunger mechanism, by which the blank is depressed between the end of the bed section and the front ed e of the guide, comprises a fiat plate 99 0% approximately the size and contour of the bottom area of the blank, which plate is carried at the lower end of a vertically reciprocating plunger rod 100. The plunger rod is guided in its movements by a lower bearing 101 extending forwardly of the lower overarm 88 and by a vertically alined upper bearing 102 carried by the upper overarm 89. The plunger is actuated in timed relation to the operation of the associated parts by suitable means, such as a cam 103 (Fig. 1) rigid with the main drive shaft 33, which cam is engaged by a cam follower 104, carried at the lower end of a vertically extending rod 105. A link 106, pivoted as at 107 to an arm 108 carried by the upper overarm 89, extends between and is pivotally secured to the upper end of the rod 105 and the plunger rod 100. Engagement of the cam follower with the cam is maintained by suitable resilient means, such as the helical spring 109 adapted, by means of a link fig, to exert adownward pull upon the rod As the cam follower rides over the cam surface, the plunger plate 99 will be reciprocated in a vertical plane through the space between the bed plate section and the guide. If, therefore, a blank is properly positioned in overlying relation to said space, the downward movement of the plunger carries the blank with it and in so doing turns bot-h side flaps of the blank upwardly along the lines of the scores A.

By virtue of the different angular positions of the tabs F and end flaps D, as determined by the guides 96, it will be evident that when the side flaps are folded by the downward movement of the plunger, the tabs F will assume a position inside of the end flaps D and in abutting engagement with the gummed portions D of the end flaps. Therefore, when the plunger reaches the end of its downward stroke, the blank is folded into box form with the four walls thereof substantially vertical and with the parts, which are to be adhesively joined, in abutting relation.

The collapsing wwcham'sm The box-collapsing mechanism 30 is arranged immediately beneath the folding mechanism 29 and receives the box therefrom at the lower end of the plunger stroke. The collapsing mechanism comprises a plurality of separately operating devices synchronized to act simultaneously upon the vertical walls of the box. These devices include, in the preferred form of the invention, four rotating cams 111, 112, 113, 114, regularly arranged to engage the side Walls of the box near each end thereof, and two oppositely disposed levers or fingers 115 which engage and collapse the end walls of the box.

The rotating cams are alike, with the exception that two 9f said cams are right hand and the other two are left hand. Referring to Fig. 8, each of the cams is smoothly spiral in form and slopes from a vertically disposed advancing surface to a horizontally disposed trailing surface substantially with in one circumference about the axis of the cam. The cams are preferably alined in pairs transversely and longitudinally of the machine and are so disposed relative to the folding mechanism that the sides of the folded box, as it is moved downwardly, pass and fit relatively snugly between the vertically disposed advancing surfaces of the cams.

Each of the cams is mounted upon a shaft 116 rotating upon a vertical axis and the direction of rotation of the transversely alined pairs of cams 111, 114 and 112, 113 is opposite so that at the point of contact of each of the cams with the side of the box, each cam moves toward the adjacent end of the box. Furthermore, one of the cams in each of said pairs is a right hand cam, the remaining cam being opposite or left handed. As a result of this relationship, diagonally disposed cams are similar and rotate in the same direction, while adjacent cams are opposite and rotate in opposite directions.

The two forward cams, designated herein as the cams 111 and 114, may be provided with means for adjusting the position of the blank relative to the plunger 99 and the guides 96. In this instance, each of the cams 111 and 114 carry an upwardly extending fingeg' 159 (Figs. 2, 8 and 13) which is eccentric with respect to the axis of the cam. During a part of their rotation, the fingers move into and out of the path of the blank and are in such timed relation with the blank feeding means that, as the blank moves beneath the plunger, the fingers engage the rear side of the blank near each end thereof and push the blank against the stops 93. This engagement is maintained until the plunger has operated to move the blank downwardly.

In driving the four shafts 116, it is essential that positive synchronism thereof be maintained. In the present instance this is accomplished by providing a transversely extending cam shaft 117 '(Figs. 5 and 8) adjacent and in front of the vertical shafts 116 for the cams 111 and 114. A second shaft 118, paralleling the shaft 117, extends adjacent and in the rear of the shafts 116 for the cams 1.12 and 113. Spiral gears 119, rotatable with the cam shafts 117 and 118, mesh with complementary spiral gears 120 on the vertical shafts 116 to drive the cams, the opposite and desired directions of rotation being produced by the particular formation of the gears which drive each shaft (see F1g. 8). Thus, the transversely alined pairs of cams are driven from the same shafts. The desired synchronism of the four-cams is effected by driving one shaft from the other in any suitable manner. To this end, a chain 121 (Fig. 5), engaging sprockets 122 and 123 on the shafts 117 and 118 respectively, drivinglv connects said shafts.

The tops of the vertically disposed portions of the cams carry flange members 142 (Fig. 4) extending laterally outwardtherefrom, which flanges are arranged to engage the upper margins of the vertical sides of the box immediately after the plunger has moved the box between the cams. These engagements prevent the box from moving upwardly with the plunger and exist until after the plunger has been withdrawn out of the way and the sloping portions of the cam surfaces have moved into collapsing engagement with the box sides.

In order that the machine may be universal within its limits, the four cams are arranged for adjustment to adapt them for operation upon blanks of varying lengths and widths, and it is preferred that such adjustments may be made without impairing or disturbing the driven synchronism of the parts. To this end. the cams are supported entirely from the drive shafts 117, 118 by peculiarly-shaped briwkets 133 (see Figs. 3, 5 and 8) which also serve as end thrust bearings for the spiral gears 119,120. I

The brackets 133 are similar and each comprises a pair of vertically spaced arms 134 arranged to straddle the hub of the spiral gear 120 and provide a bearing for the shaft 116. Integrally formed therewith are a pair of transversely spaced arms 135 (Fig. 5) which straddle the hub of the spiral gear 119 and provide a bearing for the drive shaft 117 or 118. The central portion of the bracket between the oppositely extending pairs of arms 134, and 135 is cut away to permit the gears 119 and 120 to mesh. The gears 119 are splined, as at 136 (Figs. 5 and 8) to the shafts 117 or 118, whereby longitudinal movement of each cam assembly on its drive shaft is permitted.

The means for adjusting the cams longitudinally of the machine comprises a pair of vertically spaced parallel guide-rods 124 supported longitudinally of the machine by standards 124 secured to the rearwardly extending section 22 on the vertical supports of the frame. A similar pair of guide-rods is likewise mounted on the opposite side of the machine.

Each pair of guide rods 124 slidingly receives carriages 125 and 126 which are so similar in construction and purpose that only one will be described. Each carriage compr1ses a pair of sleeves 125 slidingly mounted one on each guide rod and connected by an mtegrally formed web 125 fashioned to form a bearing for one end of one of the cam shafts 117 or 118. Thus, the shafts 117 and 118 are journalled in carriages which are capable of, guided movement toward and from each other longitudinally of the machine.

Each carriage has a lateral boss 127 thereon extending toward the frame section 22. which boss has a transverse bore 128 therein. When the carriages 125, 126 are mounted on the guide rods, the bores 128 are in axial alinement to receive screw shafts 129 having right and left hand threads thereon in screw threaded engagement with the bosses 127. In consequence, rotation of the screw shafts 129 effects a relative approach and separation of the carriages 125 and 126 on the same guides. I

Simultaneous adjusting movement of the carriages is attained by drivingly connecting the screw shafts 129 by a chain 130 passing about sprockets 131 mounted adjacent the rear ends of the screw shafts 129. Said rear ends are preferably journalledin the rear standards 124 and one of the shafts 129 extends through its standard and is squared, as at 132, to receive a wrench or the like.

Relative transverse adjustment of the pairs of cams 111, 114 and 112, 113 is produced, in this instance, by providing nuts 137 on each of the brackets 133. Preferably, said nuts are formed integrally with the ends of the transverse bracket arms 135. The nuts 137 have transversely alined bores therein through which transverse screw shafts 138 pass. The screw shafts 138 have right and left hand threads thereon engaging the nuts 137 and are journalled at opposite ends in the webs 125 of the carriages. Obviously, the shafts must parallel the drive shafts 117 and 118 for the cams and simultaneous rotation thereof results from a chain 139 engaging alined sprockets 140 on the screw shafts 138. One end of one of the screw shafts 138 extends beyond its carriage 125 through the adj acent side of the frame and terminates in a wrench receiving squared portion 141 Suit-' able chain tensioning means 139 (Fig. 6) is provided in connection with the chains 121 and 139 so that the proper tension of these chains will be maintained at any position of adjustment.

In addition to serving as a means for adj usting the cams transversely, the transverse screw shafts 138, through their connection with the spiral gear supporting brackets 133, act to maintain a true vertical position of the cam shafts 116, thereby insuring ample rigidity to the assembly while permitting the cams to be easily and quickly adjusted, either transversely or longitudinally. Furthermore, this manner, of adjustment does not impair the driven synchronism of the parts, nor is the general relationship of the cams to the plunger mechanism disturbed.

The levers 115, by which the ends of the box are collapsed, in the preferred embodiment, are cam actuated for synchronous movement with the rotating cams 111, 112, 113 and 114. As clearly shown in Fig. 4, and describing only one of the levers, an elongated supporting arm 143 is mounted on a stationary part, such as the upper one of the guide rods 124. The arm 143 extends inwardly intermediate the adjacent pair of cams 111, 112, or 113, 114 and terminates in a vertically extending portion 144 directly underlying the inner edge of the end flap D. This portion 144 engages the end flap D of the box as the plunger moves downwardly to turn said flaps into a vertical position. The box-engaging lever 115 is pivoted, as at 145, to the lower part of the vertical portion 144 for swinging movement transversely of the machine between the cams.

A longitudinally extending cam shaft 146 is journalled in brackets 147 rigid with the side frame member 23. A cam 148, rigid with the shaft, is engaged by a cam follower 149 mounted on a yoke 150 which, at one end, straddles the cam shaft 146. The other end of the yoke is connected to a link 151 which, in turn, is pivotally connected to the lever 115. Preferably, a pin and slot connection 152 is employed in connecting the yoke and link to permit of adjustment therebetween. A spring 152, interposed between the link 151 and a stationary part, holds the follower 149 against the cam 148.

The cam shafts 146, by which the levers 115 are swung inwardly and returned, are synchronously driven (see Figs. 2 and 3), one from the other by a chain153 and alined sprockets 154. A preferred drive for the lever cam shafts 146 comprises a shaft 155 journalled in brackets 155 and extending in parallelism with one of said cam shafts 146. The shaft 155 is connected to the adjacent cam shaft 146 by a chain 156 passing about sprockets 157 on the shafts 146 and 155. The shaft 155, in turn, is driven from the main drive shaft 33 through the intermediate bevel gears 158.

Now describing the synchronized operation of the cams 111, 112, 113 and 114, and the fingers 115, the parts are in such timed relation that the vertical advancing portion of each cam approaches the box engaging position as the plunger moves the folded box therebetween. At this instant, the levers 115 extend vertically upward along the vertical portion 144 of the lever supporting arm 143. The flanges 142 then holdingly engage the box margins as the plunger is withdrawn and continued movement brings the sloping portions of the cams into engagement with the sides of the box. Simultaneously, the levers 115 are caused to move inwardly by the cams 148 and engage the end of the box to collapse them inwardly.

When the collapsing cams and levers move in proper synchronism, the sides and ends of the box will be collapsed in such manner (see Fig. 13) that the abutting portions of the box, that is, the gummed portions D of the end flaps D and the tabs F (Fig. 10), are maintained relatively immovable, thereby preventing the adhesive from being spread beyond the designated area. It is desirable, however, that the levers 115 move the ends of the box inwardly at a slightly greater -rate of speed than the sides are moved. In this manner, the combined action of the cams and levers folds the end flaps along the lines of the diagonal scores G and permits the box to be fully and regularly collapsed. Theresulting structure is illustrated in Fig. 14, wherein it may be clearly seen that the sides and ends of the box are collapsed to overlie the bottom of the box and are within the area hereof.

It should be noted in connection with the canimed collapse of the box that the horizontal portions of the cam surfaces move into overlying engagement with the gummed parts of the box, thereby applying heavy pressure directly to the parts to be adhesively joined.

The (.lzlscharging mechanism The discharging mechanism presents certain features of novel construction by which the speed and efliciency of the machine are materially increased. Thus, the mechanism is arran ed to receive the collapsed hoxes directly from the collapsing mechanism without halting the movement of the boxes, changing the direction of movement thereof, or releasing .the holding pressure which the cams have applied to the gummed parts of the box. Moreover, the arrangement is such that, if desired the discharging mechanism may be constructed as integral parts of the collapsing cams and may be driven by the same driv- 1n means.

n the preferred form, the discharging mechanism comprises four enlarged screws or worms 160 (Figs. 3, 4 and 8), one-for each of the cams 111, 112, 113 and 114. The worms are of substantially the diameter of the cams and the upper surfaces are arranged to register with the horizontal portions of the cams to comprise a continuation thereof. The worms consequently can be formed as an integral part of the cams or, if desired, as a separate interfitting part. Preferably, the Worms are mounted upon and driven by the vertical shafts 116. Thus, the upper surfaces of the worms form an abutment upon which the box is deposited by the plunger and the rotation of the cams causes the four corners of the collapsed box to pass into the grooves of the worms.

a It will be evident, therefore, that after the cams have once applied pressure to the .gummed portions of the box, such pressure will be maintained for a considerable period of time during which the boxes are, in effect, screwed downwardly out of the machine: Preferably, the width of the worm grooves is determined by the thickness of the collapsed box portions engaged thereby so that the ap-, plied pressure is constant until the boxes are discharged.

It should be noted, in this connection, that the direction of rotation of the cams and worms performs an important auxiliary function. As has been pointed out, each cam (and likewise each worm) has a direction of rotation toward the adjacent end of the box.

Hence, while a box is passingthrough the worms, a positive pull is exerted on each side of the box to hold the box tightly in the worms and to keep the sides thereof taut. The possibility that the gummed parts may pull apart during the passage of the box from the machine is, therefore, positively eliminated.

Referring to Fig. 3, the receiving magazine 32 has been illustrated somewhat diagrammatically as comprising a plurality of vertically supported rods 161 spaced apart to form a receiver into which the boxes fall as they are released from the worms. It will be obvious, however, that various well-kndwn types of receiving magazines may be used in connection with the machine.

The driving bonneotz'om All of the machine elements are driven, in the present embodiment, from the main drive shaft 33, which, in turn, is connected by a belt 162 (Fig. 1) with a suitable prime mover such asan electric motor 163. Sprockets. 164, 165 on the main shaft 33 and the feed chain shaft 55, respectively, are connected by a chain 166 to drive the feed chain shaft 55, and a gear train 167, 168 drivingly connects the feed roller shaft 36 with the feed chain shaft 55. The shaft 65, which carries the gum applying segments 69, is operatively connected to thefeed roller shaft 36 by alined sprockets 169, 170 and a chain 171 and an interposed gear train 172, 173 between the shaft and the gumming-roll shaft 71 drives the gumming roll in the adhesive reservoir.

The auxiliary fede belt 76 is driven directly from the main drive shaft 33 by a sprocket 17 4 rigid with the belt pulley 77, an I In describing the operation of the mmchine, it will be considered that the feed magazine 34.- contains a supply of blanks positioned with one side edge of the blanks foremost and with the scored side of the blanks facing upwardly. As the machine operates, the blanks are delivered successively onto the bed of the machine by the feed roll 35 intermediate the feed chains 25 and the overlying guide members 62. Shortly thereafter, the fingers 58 on the feed chains simultaneously enga e the rear sides l(if the blank to convey the lank across-the As the blank moves across the bed, it first passes under. the gumming mechanism 26, whereupon the gum-applylng segments 69 contact the portions D (Fig. 10) of the blank and apply a thin coat of adhesive thereto. The blank then moves into enagement with the elongated cam members 4, which turn the end flap D and tabs F on each end ofthe blank upwardly along the line of the scores B, after which operation the blank is engaged by the auxiliary feed and is propelled at an increased rate of speed into the folding mechanism 29. During this movement, the eccentric fingers 159 engage the rearside edge of the blank to adjust the position of the blank against the stops 93. Concurrently, the pivoted cam actuated guide 91 has moved from its depressed blank receiving position to a position in which the front edge of the blank is supported in the plane of the bed. As the blank moves into the folding mechanism, the vertically disposed end flaps D and tabs F engage the guides 96, which hold the end flaps substan tially vertical and allow the end flaps to extend outwardly at an angle to the vertical (Fig. 11).

The plunger now moves downwardly engaging the blank and moving the blank downwardly at substantially right angles to the line of feeding movement to a position lying intermediate the cams 111, 112, 113 and 114, levers 115, and vertical portions 144 of the arms 143. During this movement, the

side flaps C are folded upwardly and the flaps F move into overlapping relation to the gummed portions D of the end flaps (Fig. 12). As the plunger reaches its lowermost position, the flanges 142 on the cams move to engage the upper margin of the box and prevent upward movement of the box as the plunger is retracted.

The cam surfaces of the rotating cams subsequently engage the sides of the box and, at the same time, the fingers 115 engage the ends of the box. Continued movement of these parts eollapsesthe end and side walls of the box inwardly to a position overlying the base portion thereof. As the fingers 115 are retracted, the collapsed box moves into the grooves of the worms 160 and subsequently is discharged therefrom into the receiving magazine.

While the passage of only one blank through the machine has been described, it is, of course, evident that a succession of blanks follow one after another in such timed relation that a blank is delivered to the plunger mechanism at each revolution of the rotating cams. Consequently, as may be seen in Fig. 8, each of the horizontally alined grooves of the discharging wormsengages and carries a collapsed box downwardly while maintaining positive pressure on the adhesive junctures of the box.

,While the invention is susceptible of various modifications and alternative 'constructions, I have shown in the drawings and will herein describe in detail the preferred embodiment, but it is to be understood that I do not thereby intend to limit the invention to the specific form disclosed, but intend to cover all modifications and alternative constructions falling within the spirit and scope of the invention as expressed in the appended claims I claim as my invention:

1. A box making machine comprising, in combination, a machine frame having a bed thereon, a supply magazine for box blanks located at one end thereof, a feeding device for moving blanks successively from said magazine to the bed, blank-conveying means adapted-to engage said blanks and move them across the bed, gum applying means for applying an adhesive substance to certain portions of said blanks, means on opposite sides of said bed for folding the end portions of said blanksinto relative vertical positions, a folding device for turning the opposite side portions of said blanks to relative vertical positions to form boxes, an auxiliary conveyor engaging said blanks upon release thereof by the conveying means for feeding said blanks into the folding device, means for adjusting the blanks relative to the folding device, means for actuating the folding device, box-collapsing means positioned to receive the folded boxes from said folding device and operable simultaneously to collapse the side walls of said boxes inwardly thereof to overlie the bottoms of the boxes, and discharging means contiguous to said collapsing means for receiving said collapsed boxes therefrom and discharging said boxes from the machine.

2. A box making machine comprising, in combination, a machine frame having a bed thereon, a feeding device for moving blanks successively across said bed, means for applying gum to certain portions of said blank, means on opposite sides of said bed for folding the end portions of said blank into a relatively angular position, a folding device for turning the opposite side portions of said blank into a relatively angular position, box collapsing means to collapse the walls of said box inwardly thereof to overlie the bottom of the box, and discharging means contiguous to said collapsing means.

.3. A box making machine comprising, in combination, means for gumming certain portions of said blank, means for folding the ends of said blank into relatively angular positions, a folding device for turning the opposite sides of said blank to relatively angular positions, box collapsing means operable to collapse the ends and sides of said box inwardly thereof to overlie the bottom of the box, and means for discharging said collapsed box from the machine.

4. A machine of the nature disclosed combining, a plurality of synchronized instrumentalities arranged to operate in successive steps upon a box-blank, said instrumentalities including, a gum-applying means, a preliminary folding device for turning the ends of the blank at an angle to the body of the blank, a second folding device for turning the sides of the blank in the same direction as the ends, guiding means determining the adjacent position of the gummed portions of the blank relative to parts to be joined theeto, and means for simultaneously collapsing the side and end portions of the blank substantially into the plane of the body and applying pressure to the parts to be adhesively joined.

5. In a device of the character described, abox collapsing mechanism adapted to collapse a box having side walls, including a plurality of rotating cams synchronized to fold certain of the side walls inwardly of the box.

6. In a box making machine, the combination of means for folding the side and end portions of a box blank at an angle to the body portion of the blank, and means including a plurality of cams for collapsing the said portions inwardly to overlie said body portion within the boundaries thereof.

7. In a box makin machine, the combination of means for fol ing the wall portions of a box blank at an angle to the body portion of the blank, rotating cams engaging two opposite walls of said box, and other means engaging the intermediate walls, said cams and said other means having synchronous operative movement to collapse said walls inwardly tooverlie said body portion within the boundaries thereof.

8. In a box making machine, the combination of means for forming a box having side walls, and a plurality of rotating cams engaging the walls of said box, said cams being shaped to move said walls into overlying relation with respect to the bottom of the box.

. 9. In a box making machine, the combination of means for forming a box having side walls, a plurality of rotating cams engaging the walls of said box, said. cams being shaped to move said walls into overlying relation with respect to the bottom of the box, means for synchronously driving said cams, and ad justingmeans for said cams operable to vary the distance therebetween while maintaining said synchronous relation.

10. In a box making machine, the combination of means for forming a box having side walls. and means including a plurality of rotating cams subsequently engaging said walls to fold them downwardly in substantially overlying relation to the bottom of the box within the area thereof.

11. A box collapsing mechanism of the na- 'ture described adapted to fold the walls of a box into overlying position relative to and within the boundaries of the bottom of the box, comprising a plurality of synchronously operating cams and fingers operable to effect the folding movement of the walls.

12. A box collapsing mechanism of the nature described adapted to fold certain of the walls of a box into overlying position relative to the bottom, comprising a rotating cam engaging each end of each of said walls, said cams being shaped to fold said walls inwardly of and downwardly adjacent to the bottom of the box during the rotation thereof.

13. A box collapsing mechanism of the nature described adapted to fold certain of the walls of a box into overlying position relative to the bottom comprising a rotating cam engaging each end of each of said walls, said cams being shaped to fold said walls inwardly of and downwardly adjacent to the bottom of the box during the rotation thereof, and ad- 'justing means for varying the distance between said cams.

14. A box collapsing mechanism of the nature described comprising four rotating cams arranged to engage opposed walls of the box near the ends thereof and shaped to fold said walls inwardly into overlying relation to the box bottom, and folding fingers engaging the opposed intermediate walls of the box and having synchronousoperation with said cams to move the walls engaged thereby into overlying relation to the box bottom.

15. A box collapsing mechanism of the nature described comprising four rotating cams arranged to engage opposed walls of the box near the ends thereof and shaped to fold said Walls inwardly into overlying relation to the box bottom, means for adjusting the relative; positions of said cams with respect to each other, and folding fingers engaging the opposed intermediate walls of the box and hav ing synchronous operation with said cams to move the walls engaged thereby into overlying relation to the box bottom.

16. In a box making machine, the combination of a folding device, means for feeding blanks thereto with the end portions of said blanks in upright position, and means for adjusting the position of said blank relative to the folding device including guides for the upright portions of said blanks adapted to maintain certain sections thereof upright and the remaining sections at an angle with respect to the upright sections.

' 17. In a box making machine, the combination of a folding device adapted to operate on box-blanks having two end tabs and an intermediate end flap at opposite sides of the body of the blank, and guides for said tabs and end flaps comprising means for supporting said tabs substantially at right angles to the body and other means for supporting said end flaps at some angle intermediate the plane of the tabs and the plane. of the body.

18. In a box making machine, the combination of a folding device adapted to operate upon a box blank having a plurality of separate sections at each end thereof, means for feeding a blank thereto with said end sections at an angle to the body of the blank, and guides for said sections comprising elongated members having portions thereof offset from the,norn1al plane laterally away from said folding device, said guides having such positions relative to said folding device that certain of 'said end sections are guidedly receiving said formed blank including blank engaging members for effecting adhesion between portions of the blank to form the box and for folding the walls of said box to lie substantially in the plane of the bottom of said box, and means for discharging the collapsed box from the machine.

20. A machine of the character described comprising, the combination of means operating upon a box blank to apply adhesive to portions thereof and to fold said blank into the form of a box, means subsequently receiving said formed blank including members engaging the wall portions of the box for folding simultaneously effecting adhesion between portions of the blank to complete the box and the walls of said box to lie substantially in the plane of the bottom of said box, and means for discharging the collapsed box from the machine, all of said elements having synchronized movement to operate on said box as the box moves continuously from one to the other.

21. In a machine of the character described, the combination of means for presenting a box having side walls, and means for collapsing the walls including a unitary device having a part adapted to fold a wall to lie substantially in the plane of the box bottom, and having a second part integral and movable with said first mentioned part and adapted to move the collapsed box from' the machine.

22. A device for effecting a folding operation upon a box blank comprising a unitary screw-shaped instrumentality having a fiat outstanding section adapted fiatwise to engage and effect a folding operation upon a part of the blank, and a second section for moving the folded part away from said first mentioned section.

23. In a machine of the character described, the combination of means for presenting a box having side walls, and continuously rotating means for collapsing the walls and discharging the box from the machine, said rotating means comprising a plurality of screw shaped devices, each having an upper cam part adapted to fold a wall from one position to another and a worm part constituting a helical continuation of said cam part.

24. A machine of the nature disclosed combining. a plurality of synchronized instrumentalities arranged to operate in successive steps upon a body blank, said instrumentalities including, a gum-applying means, blank folding means operating upon the sides and ends of the blank to form a box, and means for simultaneously collapsing the box walls and applying pressure to the gummed junctures.

25. A machine of the nature disclosed combimng, a plurality of synchronized instrumentalities arranged to perform successive steps upon a body blank, said instrumentalities including, a gum-applying means, blank folding means operating upon the sides and ends of the blank to form a box, means for simultaneously collapsing the box walls and applying pressure to the adhesive junctures, and discharging means conveying said collapsed box from the machine while maintaining said pressure.

26. A machine of the nature disclosed combining, a plurality of synchronized instrumentalities arranged to operate in successive steps upon a box blank, said instrumentalities including, a gum-applying means, blank folding means operating upon the sides and ends of the blank to form a box, box collapsing means for folding the walls of the box substantially into the plane of the bottom of the box, and discharging means for conveying a box from the machine after the collapsing thereof is entirely completed, said means having continuous engagement with the box through substantially the entire area of the gummed junctures to apply pressure thereto during the discharging operation.

27. A box making machine having, in combination, folding means operating upon a previously gummed blank to form said blank into a box, a plurality of cams positioned to receive said box therebetween and to engage opposed walls of the box, oscillating fingers engaging the intermediate walls of the box, and means for rotating said cams and moving said fingers in synchronism to fold the walls of said box simultaneously substantially into a flat piece.

28. In a box making machine, the combination of folding means operating on a blank having previously gummed portions thereon to form a blank into the shape of a box in which said gummed portions abut other por tions to be joined thereto, and a plurality of box collapsing devices positioned to engage the walls of the formed box and fold said walls substantially into the plane of the box bottom, and means for synchronously operating said devices to prevent lateral movement between the related parts of the gummed junctures during the collapsing operation.

29. In a box making machine, the combination of means for folding and presenting a box having bottom, side and end walls, rotating cams receiving said presented box therebetween and positioned to engage the side walls of the box near the ends thereof, said cams being shaped to fold the sides from angular to overlying positions relative to the bottom during rotation thereof, means actuated in synchronism with said cams to fold the ends in a similar manner, each of said cams having a direction of rotation toward the adjacent end of the box at the point of contact therewith.

30. In a box making machine, the combi nation of means for folding and presenting

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