US2171418A - Carton machine and method of forming cartons - Google Patents

Description

Aug. 29, w39. F. DA PALMER 291711413 CARTON MACHNE vAND METHOD 0F FORMIG CRTONS AFiled July 20, 1956 8 Sheets-Sheet l w I Imm@ u HWI" Uw" 'i ,MNHN will S wil uc, l 4- i .JN @aiu Aug. 29, 1939. F. D. PALMER CARTON MACHINE AND METHOD OF FORMING CARTONS Filed July 2O,4 1955 8 Sheets-Sheet 2 `,11ug.29,1939. FDPALMER 2,171,418

CARTON` MACHINE AND METHOD 0F FORMING CARTONS Filed July 20, 1936 8 Sheets-Sheet 3 Aug. 29, 1939. F. D. PALMER 2,171,418

CARTON MACHINE AND METHOD OF FORMING CAHTONS Aug. 29, 1939. F. D. PALMER 2,171,418

CARTON MACHINE AND METHOD 0F FORMING CARTONS Filed July 20, 1936 8 Sheets-Sheetl 5 F. D. PALMER Aug. 29, 1939,

v CARTON `MACHINE AND METHOD 0F FORMING CARTONS Filed July 20, 1936 8 Sheets-Sheet 6 fnl@ fram@ .(2 @6a/mer,

Aug. 29, 1939. F. D. PALMER 2,171,418

CARTON MACHINE AND METHOD OF FORMING CARTONS Filed July 20, 1936 8 Sheets-Sheet 7 ffy-ff Aug. 29, 1939. F. D. PALMER 2,171,418

CARTON MACHINE AND METHOD OF FORMING CARTONS Filed July 20, 193e s sheets-sheet 8 Patented Aug. 29, 1939 7 PATENT OFFICE CARTON MACHINE AND IVIET'HOD 0F FORMING CARTONS Frank D. Palmer, Chicago, Ill., assignor, by 1li-- rect and mesne assignments, of one-third to Oliver `P. Kline and one-third to Cranston Spray, both of Chicago, Ill. i

Application July 20, 1936, Serial No. 91,519

59 Claims.

My invention relates particularly to a machine and method of forming cardboard cartons a1- though not limited to this use alone.

The general object of the invention resides in the provision of a novel and practical carton machine and method of forming cartons, particularly with a view toward the economical and desirable manufacture of cartons, the invention contemplating the formation from a carton blank of the circumscribing sides and one end of a carton in at least partially concomitant relation with obvious practical advantage. t

A further object of the invention resides in the provision of a novel and practical carton machine and method of forming cartons provided with desirable and practical dispenser formation, particularly with a view toward the economical and practical manufacture of dispenser equipped cartons as above set forth.

With this object in view my invention consists in certain features of novelty in the construction, combination and arrangement of parts by which the said objects and certain other objects, hereinafter appearing, are eifected, all as fully de- 5 scribed with reference to the accompanying ldrawings and more particularly pointed out in the appended claims.

In the said drawings- Figure l is apartial side elevation of a carton machine embodying my invention;

Figure 2 is a partial top plan view of the same;

Figure 3 is a sectional view substantially on the line 3 3 of Figure 1;

Figure 4 is a sectional view substantially on the line 4-4 of Figure 1;

Figure 5 is a partial sectional view substantially on the line 5-5 of Figure 1;

Figure 6 is a partial sectional View substantially on the line 6--6 of Figure 2;

Figure 7 is a sectional view substantially on the line 1-1 of Figure 6;

Figure 8 is a partial sectional view similar to Figure 6 and showing parts in different positions than those in which they are sh-own in Figure 6;

Figure 9 is a partial sectional view similar to Figure 8 and showing parts in different positions than those in which they are shown in Figure 8;

Figure 10 is a partial sectional view looking to the right on Figure 9;

Figure 11 is a partial top plan View of the mechanism shown in Figures l8 and 9 and showing the parts in transition between the positions of Figures 8 and 9;

Figure 12 is a partial sectional view'substantially on the line |2--l2 of Figure 6 and show- (o1. sas-44) ing parts somewhat advanced vfrom the positions in which they are shown in Figure 6; 1

Figure 13 is a partial front elevation of one of the forming units hereinafter described and with parts shown in section;

Figures 14 and 15 are similar partial sectional views in plan showing a forming unit, hereinafter described, and certain parts thereof in diierent positions;

Figure 16 is a partial sectional view in plan showing a forming unit somewhat advanced from the position in which it is shown in Figure Figure 17 is a partial sectional view in side elevation showing a forming unit in substantially the same position as it is shown in Figure 16;

Figure 18 is a partial sectional view in plan showing a forming unit in a position previous to that in which it is shown in Figure 14;\

Figure 19 is a partial sectionalview in plan showing a forming unit in approximately the same position as that in which it is shown in Figure 14;

Figure 20 is a perspective view of a forming unit in open or carton blank receiving position;

Figure 21 is a similar perspective View of a forming ,unit locked in closed or carton forming position; l

Figure 22 is a partial section substantially on the line 22-22 of Figure 23 and showing a part in a dilerent position from that in which it is shown in Figure 23;

Figure 23 is a partial side elevationrof a forming unit. with parts broken 4away and shown in section and showing parts in the positions in which they are shown in Figure 8;

Figure 24 is a partial section on the line 24-24 of Figure 20;

Figure 25 is a partial rear elevation of a forming unit and showing parts in the positions in which they are shown in Figure 16 and having a part broken away and shown in section;

Figure 26 is a perspective of the main or track frame of the machine;

Figure 27 is a partial sectional view on the line 21-21 of Figure 1;

Figure 28 is a partial sectional view on the line 2B-28 ofFigure 1;

Figure 29 is a partial sectional View on the line 29-29 of Figure 1; and

Figures 30 to 36 are perspective views illustrating progressively the manner in which a carton is formed in accordance with my invention, Figure 30 illustrating a carton blank and Figure 36 illustrating a carton completed in so 1 of I-beam section which, as shown, is disposed horizontally with the web thereof in a vertical plane. See Figures 1 and 26. This frame is supported in the aforesaid position by a base 2. Bearing brackets 3 are adjustably secured, as generally designated at 4 in Figure 1,. at opposite ends of the frame I.

Shafts 5 are mounted on the brackets 3 on horizontal axes normal to the web of the frame I, and one of which is secured with its bracket, see' Figure 28, and the other of which is journaled on its bracket for rotation, see Figure 2'1. Double sprockets 6 are mounted on the shafts 5, one of which is mounted for rotation on the stationary shaft 5 and the other of which is secured on the rotatable shaft 5 for rotation therewith.

A chain sprocket 1`is secured on the rotatable shaft 5, see Figure 27, and a countershaft 8 is journaled on the base 2 and has a chain sprocket 9 secured thereon. A transmission chain II is trained over the sprockets 1 and 9 to drive the sprocket 1 and the rotatable shaft 5 from the shaft 8, and an electric motor I2 serves to drive the shaft 8 by means of a belt drive, generally designated at I3, thus driving the sprocket 'I and the rotatable shaft 5.

A forming unit chain is trained over the double sprockets 6 and comprises alternate double links I4 and straddle links I5, of which the links I5 form the bases of the carton forming units, hereinafter described, the links I4 and I5 being pivotally connected, as designated at I6.

The flanges of the frame I are provided with longitudinally spaced bosses I1 at the edges thereof, and longitudinally extending angles I8 and strips I9 are secured on said bosses by means of screws 2I, the strips I9 being provided with opposing offsets 22 forming opposing guideways, in cooperation with the angles I8, extending between the sprockets 5.

The links I5 are provided with reduced side edge portions 23 which are slidably engaged in' the aforesaid opposing guideways to positively guide the links I5 in their movement between the sprockets 6. See Figures 10, 12, 20, 21 and 29.

As aforesaid, the alternate links I5 form the bases of the carton forming units, and each of these forming units consists as follows:

An inner form member 24 of multi-sided'rectangular formation is secured centrally on a link I5 and projects outwardly therefrom with reference to the path of the chain comprising the links I4 and I5. This inner form member is approximately the shape of the interior of a carton to be formed thereon and is so positioned on the link I5 that opposite sides of the form member are substantially parallel to the movement thereof with the chain comprising the links I4 and I5. See Figures 1, 6, 7 and 20.

An outer side-forming member 25 is pivotally mounted at its inner end, as designated at 2,6, on the leading end of the link I5 for facewise movement toward and away from the corresponding face of the inner form member 24, movement of the member 25 away from the member 24 being limited by the lower end 21 of the member 25 striking an opposing surface of the link I5. See Figure 6. A torsionalcoil spring 28 is associated with the pivotal mounting 26 of the forming member 25 and serves toyieldably urge the member 25 away from the inner form member 24.

Additional outer side forming members 31, 38 and 39, a side glue flap forming member 4I and the side forming member 25 are sequentially arranged, and are pivotally mounted one upon another by means of parallel pivot mountings 42, 43, 44 and 45 disposed transverse to the pivot mounting 25, so that these side forming members and the side glue flap form member are relatively movable facewise in a common plane to and from a position in which the forming planes thereof are disposed at one side of a carton blank receiving plane, as shown, in Figure 20, and another positicn in which said forming planes are in forming position, as shown in Figure 21. The arrangement is such that the side forming member 25 is disposed between the forming members 38 and 39, and that the side forming member 31 and the glue ap member 4I are the terminal members of the assembly for cooperation as hereinafter described.

Pivotal movement of the side forming members 38 and 39 into a common plane with reference to the side forming member 25 is limited by a transverse stop bar 48'. See Figures 6 and 2l. Pivotal movement of the side forming member 31 into a common plane with reference to the side forming member 38 is limited by a corner 41 of the member 31 engaging an opposing portion of the member 38. See Figure '1. Pivotal movement of the glue flap member 4I into a common plane with reference to the side forming member 39 limited by a corner 48 of the member 4I engaging an opposing portion of the member 39. See Figure 7.

A torsional spring 49 is associated with the pivot mounting 45 and serves to yieldably urge the glue flap member 4I into a common plane with reference to the side forming member 39. See Figures 20 and 24. A bracket 5I is secured transversely on the member 25 and extends outwardly from both sides thereof. See Figures '1 and 21. A tension spring 52 has one end secured on the corresponding end of the bracket 5I and has its other end secured on a stud 53 secured on the sideforming member 39, to the end that this side forming is yieldably urged into a common plane with reference to the side forming Amember 25.

A 'tension spring 54 has one end secured on the corresponding end of the bracket 5I and has its other end secured on a stud55 secured on the side forming member 31, to the end that the side forming members 31 and 38 are yieldably urged into a common plane with reference to the side forming member 25, see Figures '1, 12 and 21, the spring 53 bending about the corner formed by the side forming members 31 and 38 when they are angularly disposed as shown in Figures 12 and 21.

An outer top forming member 56 is pivotally mounted, as designated at 51, on the outer end of the side forming member 25 on an axis parallel to that of the pivotal mounting 26 of the member 25 and accordingly normal to the parallel axes of the pivot mountings 42, 43, 44 and 45 of the outer side forming members and the side glue flap member. See Figures 6, 7 and 20.

The top forming member 56 is thus pivotally movable relative to the member 25 facewise in a plane normal to the plane of relative facewise movement of the outer side forming and glue ap members to and from a position in which the forming plane thereof is disposed at one side of the aforesaid carton blank receiving plane,

as shown in Figure 20, and another position in which the forming plane thereof is in forming position, as shown in Figure 21.

A torsion spring 58 is associated with thepivot mounting 51 and serves to yieldably urge the top forming member 56- into a common plane with reference to the side forming member 25. A lock bar 59 secured on the top forming member 56 and projecting therefrom is engageable against the side forming member 25,' as shown in Figure 8, to limit movement of the member 56 into a common plane with reference to the member 25.

The carton blank receiving position of the forming unit is that in which the forming faces of the outer forming members 25, 31, 38, 39, 4I and 56 are in a common plane or at one side of a carton blank receiving plane and preferably in which the forming member 25', and -With it the remainder of the aforesaid outer forming members, are tilted away from the inner form member 24 to facilitate insertion of a carton blank. See Figures 6 and 20. Carton blank rests 6| are mounted on the inner ends of the outer side forming members 38 and 39, the carton blank/hereinafter described, being registered laterally of the formingunit by fsuitable means not shown.

An outer top forming member 62 is pivotally mounted, as designated at 63, on the forming member 31 on an axis parallel to that of the pivot mounting 42, and the forming portion of the member 62 is disposed normal to the axis of the mounting 63 and to pass over the outer end of the member 31. As thus mounted, the forming member 62 is pivotally movable from a forming position projecting beyond the forming plane of the member 31, as shown in Figure 18,. to a non-forming position in which it clears this forming plane, as shown inv Figures 16 and 20, the member 62 being cut away diagonally, as shown at 64, for suchclearance.

A usual stop means, not shown, limits movement of the forming member 62 into its nonforming position, and a torsion spring 65 associated with the pivotal mounting 63, see Figures 21and 25, yieldabiy urges the forming member 62 into its non-forming position.

An outer top forming member 66 is pivotally mounted, as designated at 61, on the forming member 38 on an axis parallel to that of the pivot mounting 43, and the forming portion of the member 66 is disposed normal to the axis of the mounting 61 and to pass over the outer end 'of the member 38. See Figures 16, 18 and 20.

As thus mounted the forming member 66 is pivo-tally movable from a forming position projecting beyond the forming plane of the member 38, as shown in Figure 18, to a non-forming position in which it clears this forming plane, as shown in Figure 16 and 20, the vmember 66 being cut away diagonally, as shown at 68, for such clearance.

A stop pin 69, mounted on the outer end of the member38, slidably engages in a segment slot 1I through the member 66 to limit movement of 4the'member 66 into its non-forming position. and a torsion spring, not shown but simi'- lar to the spring 65, is associated withthe mounting 51 to yieldably urge the member 66 into its non-forming position.

An outer top forming member 1-2 is pivotally mounted, as designated at 13, on` the forming .member 39 on an axis parallel to that of the pivot mounting llfi, and the formingr portion of the member 12 is disposed normal to the axis of the mounting 13 and to pass over the outer end of the member 39. As thus mounted the forming member 12 is pivotally movable from a forming position projecting beyond the forming plane of the member 39, as shown in Figure 18, to a nonforming position in which it' clears this forming plane, as shown in Figures 16 and 20, the member 12 being cut away diagonally, as shown at 14, for such clearance.

A stop pin 15, mounted on the outer end of the member 39, slidably engages in a segment slot 16 through the member 12 to limit movement of the member 12 into its non-forming position, and a torsion spring, not shown but similar to the spring 65, is associated with the mounting 13 to yieldably urge the member 12 into its nonforming position.

'I'he inner form member 24 is provided with a recess 11 in one of the sides thereof normal to the forming plane of the outer side forming member 25 and of the top forming member 56, said recess occurring at one of the outer tri-corners of the inner form member adjacent the forming member 25. See Figures 20, 22 and 23. ,This recess is open at all three of the surfaces of the inner form member 24 forming said tri-corner including the outer end side of the inner form member, as best shown in Figure 20.

An auxiliary inner form member 18, which as shown is of quadrant shape, is disposed in a plane corresponding with that of the recess 11 and of said recessed side of the inner form member normal to the forming plane of the member 25, and

is pivotally mounted in the region of its apex on the inner form member 24, as designated at 19, on an axis disposed normal to the plane of this auxiliary inner form member and the side o'f the inner form member having the recess 11 and disposed in the ,region of the aforesaid tri-corner. See Figures 20, 22 and 23.

As so mounted, the auxiliaryrorm member 18 is pivotally mounted on the inner form member 24 to and from a position projecting from the outer side of the inner form member, as shown in Figures 8, 20 and 23, and a retracted position substantially within the recess 11, as shown in Figure 22.

The pivot mounting 1s is disposed parallel tothe pivot mounting 51 of the forming member 56, and a radial side of the auxiliary form member 18 opposes the forming member 56, so that the auxiliary form member is moved into its retracted position by movement of the forming member 56 into forming position as hereinafter described. A torsion spring 8| is associated with the pivot mounting 19 and yieldably urges the auxiliary form member 18 into its projecting position, a screw stud 82 on the auxiliary form member slidably" engaging in a segmental slot 83 in the inner form member 24 to limit the auxiliary form member in its projecting position.

The carton blank receiving position of the forming unit, as hereinbefore described, is shown in Figure 20, and the final forming position f the forming unit is shown in Figure 21 in which the outer side formingy members 25, 31, 38 and 39 and the outer top forming member 56 are disposed in opposing relation with the corresponding sides of the inner form member 24, the auxiliary inner form member 18 having been moved to its retracted position by the outer top forming member 56. In the carton forming position of the forming unit, the carton blank rests 6I are received within grooves 84 in the `inner form member 24.

Preferably, the forming unit is locked in its Ali forming position for the setting of glue previously yapplied to the carton blank, as hereinafter described, and for this purpose the following is provided.

A lock lever of hook form is pivotally mounted, as designated at 86, on the forming member 39, and a headed lock stud 81 is secured on the forming member 31 by means of a bracket 88. See Figures 15, 17 and 21. When the outer side forming members are in forming position the lock lever 85 may be engaged on the stud 81 under the head thereof to releasably lock the outer side forming members in forming position, the pivot mounting 86 affording locking and releasing movement of the lock lever. The locking lever 85 is provided with oppositely extending arms 89 and 9| for the purpose of actuating the lock lever as hereinafter described.

A locking lever 92 is intermedi'ately pivoted, as designated at 93, 0n the outer side forming member 25. See Figures 9 and 13. When the top forming member 56 is in forming position the outer end of the locking lever 92 may engage under the lock bar 59 to lock the forming member 56 in forming position, as shown in Figure 13. Al spring 94 yieldably urges the locking lever 92 into locking position and a stop pin 95'on the forming member 25 limits locking movement of the locking lever, thus affording automatic locking of the outer top forming member in forming position.

The inner end of the locking lever 92 is offset laterally and is adapted to engage on a projection 96 on the link I5, so that, as the outer side forming member 25 pivots away from the inner form member 24 on the pivot mounting 26, the locking lever 92 is moved into unlocking position, as shown in dotted lines in Figure 13, thus providing for automatic unlocking of the forming member 56 as the outer side forming member 25 moves into carton blank receiving position.

The outer side forming members 25, 31, 38 and 39 and the outer top forming member 56 being yieldably urged into carton blankreceiving position, it follows that movement of the lock lever 85 into released position serves to automatically unlock the outer top forming member 56 for movement into carton blank receiving position.

As hereinafter indicated, each link I5 of the chain, comprising the links I4 and I5, carries a forming unit as above described, the forming units being correspondingly disposed for multiple carton forming, see Figures 1 and 2, in which the forming units are generally designated at 91. With the driven movement of the chain, comprising the links I4 and I5, carrying the forming units, relatively stationary instrumentalities cooperate with the forming units in succession for the forming of cartons and will now be described.

Secured with the upper portion of the frame I intermediate its ends is a boxlike frame structure, comprising sides |0I, |02 and a top of |03, through which the forming units pass in succession on the upper stretch of the chain comprising the links I4 and I5, the driven movement of the upper stretch of this chain being from left to right in Figure 1.` See Figuresl, 2, 6, 7 and 12.

Laterally spaced rails |04 are securedV` at the upper portion |03 of the aforesaid box like structure and project therefrom in parallelism with the path of the forming units in the direction opposite the movement of the forming units on the upper stretch of their path. See Figures 6, 8, 9, 10 and 12. A transversely disposed horizontal rock shaft |05 is journaled in bores through the projecting ends of the rails |04, and a pair of U- shaped arms |06 have corresponding legs thereof secured on opposite ends of the shaft |05 for rocking movement therewith, the opposite ends of the arms |06 being provided with carton blank engaging rollers |01.

A transversely disposed rock shaft |08 extends through and is pivotally mounted on the side |02, and an arm |09 is secured on the outer end of the shaft |08. A connecting rod III is pivotally connected with the arm |09 and the corresponding arm |06 for rocking the arms |06 with rocking movement of the shaft |08. A roller arm ||2 is secured on the inner end of the shaft |08 and is so disposed to be engaged by an end of the stop bar 46 of each forming unit as it is moved along to effect carton forming movement of the arms |06 downwardly and in the direction of forming unit movement from the position shown in Figure 6 to that of Figure 9, the arm I I2 releasing from each stop bar 46 to permit return of the arms |06 to their non-forming position as shown in Figure 6.

A stop pin 3 is secured on the side |92 and is engageable by the arm II 2 to limit the arms |06 in their non-forming position, and a torsion spring ||4 on the shaft |05 serves to yieldably urge the arms |06 into their non-forming position. Thus the arms |06 are oscillated to and from carton forming position as the forming units are moved in their defined path.

Two laterally spaced downwardly facing stationary forming plates II5 are secured on the extending portions of the rails |04 for oppositely cooperating with the rollers |01 of the arms |06, the arms |06 with their rollers |01 and the plates II5 being disposed on opposite sides of the paths of the top forming member 55 of the forming units and the plates ||5 being disposed slightly above the side forming members 37, 38 and 39 and the forming members 62, 66 and '|2. See Figures 8, 9, l0 and 11.

A laterally facing stationary form member |I6 is fixed with the inner edge one of the form plates I I5, and is disposed on the side of the path of the forming members 56 corresponding with the side of the forming units upon which the auxiliary inner form members 'I8 are disposed for oppositely cooperating with these auxiliary form members.

A downwardly facing cam plate III is secured with the forming plates II5 and lies in the path of the forming members 56, and a pair of downwardly facing cams ||8 are secured on the top |03 and lie in the path of the forming members 56 and are spaced from the cam plate II'I in the direction of the movement of the forming units. See Figures 6, 8, 9 and 12. Cam rollers I9 are mounted on the outer ends of the forming members 56, and are engageable with the cam plate II'I and the cams |I8 in the movement of the forming units to effect forming movement of the forming members 56, the cam plate I1 giving the forming members 56 a partial forming movement andthe cams I I8 giving the forming members 56 a complete formingmlovement for purposes hereinafter described. r

An upwardly facing cam |2| is formed on the upper surface of the frame I, and is engageable by cam roller arms |22 mounted on the inner end portions of the forming members 25 to actuate.

the forming members 25 on 'the pivot mountings 26 toward and into forming relation with the inner form members 24 of the forming units in soy the movement of the forming units. See Figures 6, 8, 9 and 26.

Identical vertically spaced cams |23 are secured on the inside of the side IUI, and are engageable by vertically spaced cam rollers |24 mounted on the forming members 38 of the forming units to actuate these forming `members into forming position in the movement of the forming units. See Figures '7 and 12.

Identical vertically spaced camsr |25 are secured on the inside of the side |02, and are engageable by vertically spaced cam rollers |26 mounted on the forming members 39 of the forming units to actuat'e these forming members into forming position in the movement of the forming units.

A cam |21 is secured on the inside of the side ||l| and is engageable by cam roller arms |28 on the forming members 31 of the forming units to actuate these forming members into forming position in the movement of the forming units. See

Figures 12, 14, 15.

A cam |29 is secured on the inside of the side and is engageable by cam roller arms |3| mounted on the forming members 62 to actuate these forming members into forming position in the movement of the forming units. See Figures 12, 16 and 21.

A cam |32 is secured on the inside of the side I 8| and is engageable by cam rollers |33 mounted onv the forming members 66 of the forming units to actuate these forming members into forming position in the movement of the forming units.

. See Figures 18, 19 and 21.

- ate these forming members into forming position in the movement of the forming units. See Figures 18 and 21.

A roller arm |36 is secured on the inside of the side |02 and is engageable by lugs |31 on the glue flap forming members 4| of the forming units to momentarily actuate these glue flap forming members into forming position in the movement of the forming units, See Figures 14, 15 and 21.

A stud |38 is secured on the inside of the side |82 and is engageable by the arms 89 of the lock levers 85 of the forming units to actuate the lock levers 85 of the forming units into locking position in the movement of the forming units. See Figures 12, 14 and 15.

A bracket |39 is secured on the base 2 and is provided with a stud |4| which is engageable by the arms 9| of the lock levers 85 of the forming units when on the lower path portions thereof to actuate the lock levers 85 into released position for the opening of the forming units preparatory to the removal of the formed and glued cartons from the forming units by any suitable means, not shown, and the removal of the formed cartons for filling and sealing asby a suitable conveyor generally indicated vat |42. See Figures 1 and 5.

As shown, the carton blank on which the machine, hereinabove described, is adapted to operate is illustrated in Figure 30 and consists as follows:

The blank is formed of suitable material, such as cardboard, and is generally of the usual rectangular form. 'Ihe blank consists of consecutively arranged side panels |43, |44, |45, and |46,

a glue ap |41 along the outer side edge of the panel |46, upper end panels or flaps |48, |49, and |52 extending from the upper ends of the side panels, and lower end panels orl aps |53,

|54, |55 and |56 extending from the lower ends of the side panels. l

The blank is preferably scored, as designated at |51 to facilitate the bending or forming of the panels or aps thereof upon one another to form the carton, and, except as hereinafter described, the end panels or flaps of the blank are separated by cuts |58 alined With the side edges f the side panels.

The blank is provided with a dispenser forma.- ton which consists as follows:

This dispenser formation ultimately forms a two-sided dispensing hopper, and is formed from material of the two adjoining upper end panels '|5I and |52. This formation is formed by an arcuate cut |59 in the end ap |52 and a straight cut |6| Yextending along the inner edge of the end panel |52 forming a dispenser side flap |62 attached to the side of the adjoining end flap 5l, and an arcuate perforation |63 on the end flap |5| adapted to be ultimately broken to form the other side ap of the hopper when it is desired to dispense from the formed carton.' The arcuate edge of the side flap |62 is provided with a radial projection |64 adjacent the inner edge thereof to engage under the related end formation of the carton to limit outward movement of the hopper. The blank is preferably scored, as designated at |65, between the side aps of the dispenser formation. The upper inner corner of the end flap |49 is cut away, as designated at |66, to provide with the portion of the end flap i |52, cut away to form the dispenser side flap |62, a dispensing opening for the dispensing hopper.

In the formation of a carton from the blank illustrated` in Figure 30 in the hereinbefore described machine, glue is initially applied to the proper portions of the blank, .as indicated at |61 in Figure 30. These glued portions consist of a terminal side edge strip on the inner face of the side panel |43, the entire inner faces of the upper end aps |48 and |49 and the inner face of the portion of the upper end flap |5| exterior of the arcuate perforation |63.

The operation of forming the one end and sides of the carton is, of course, effected previous to the setting of 'the glue, and the glued blank is fed into a forming unit while the unit is in carton blank receiving condition, hereinbefore described and as shown at the left in Figures 1, 6 and 7 and as shown in Figure 20. Referring to Figure 1, the glued carton blanks are successively fed into the open forming units as they initiate the upper stretch of the forming unit chain path in which the forming units travel to the right.

The blank is fed into an open forming unit with the outer edges of the lower end flaps |54 and |56 engaged on the rests 6| for vertical registry and with the several panels or flaps of the blank laterally registered with the corresponding forming members 31, 38, 25, 39, 4| and 56 of the .forming unit, the inner face of the blank to which the aforesaid glue is applied opposing the inner form member 24.

With a carton blank so positioned thereon, a.

forming unit advances in the direction of the therebetween. See Figure 8. It will be observed that, in this movement of the forming member 25, it carries with it the forming members 31, 38, 39, 4|, 56, 62, 66 and 12. This movement of the member 25 also actuates the forming member 56 toward the opposing auxiliary inner form member 18, thus confining the hopper side flap forming portion of the upper end ap |5| therebetween, the carton blank being still in flat condition as illustrated in Figure 30.

Further advance of the forming unit effects almost simultaneous functioning of the arms |06 and their rollers |01 in opposing cooperation with the forming plates ||5, the form member ||6 in opposing cooperation with the auxiliary inner form member 18 in one plane, and the former member 56 in opposing cooperation withv the form member 18 in a plane normal to said first mentioned plane, to effect the formation of the blank as shown in Figure 31. See Figures 9, and 11.

To explain in detail, the arms |06 and their rollers |01 in their non-forming positions, as shown in Figure 6, clear the top of a blank as carried by a forming unit. As a forming unit, carrying a blank advances, the arms |06 are actuated into their forming position after the carried blank clears them, after which the arms |06 are actuated toward their forming positionl by the means hereinbefore described. In this movement the rollers |01 of the arms |06 engage the side panels of the blank adjacent their upper ends in oposite cooperation with the outer side forming members of a forming unit to permit the forming plates ||5 to partially form the upper end flaps |48, |49 and |52 of the blank with reference to the corresponding side panels thereof.

Almost simultaneously with this action, forming movement of the top forming member 56 is initiated by the cam plate ||1 to partially form the upper top flap I5|, and the forming member ||6 forms the dispenser side flap |62 with reference to the top flap |5|. See Figures 10 and 11.

As the forming unit advances the dispenser side flap |62 is completely formed with reference to the upper top flap |5| and the upper end flaps |48, |49, |5| and |52 are partially formed, the partial forming of the flap |5| and the forming of the dispenser side flap |62 serving to dispose the inner edge of the dispenser side flap and the projection |64 below the fold between the top ap |52 and thev side panel |46 so that placement of the dispenser side flap |62 inside the side panel |46 and of the projection |64 below the final plane of the top flap |52 is assured. This condition of the carton blank is illustrated in Figure 31 and occurs just previous to the forming unit position of Figure 9.

Further advance of the forming unit causes the cams |23 and |25 to effect forming movement of the forming members 38 and 39, the form plate I|5 corresponding with the top ap |52 of the blank being provided with a cam portion |68 which disposes the flap |52 below the flap |49, so that, as the side panels |44 and |46^are formed .by the forming members 38 and 39, the top flap |49 overlies the top'ap |52. See Figures 7, 10, 14 and 15. Figures 33 and 34 illustrate the formation of side panels |44 and |46.

The formation of the side panel |46 is effected somewhat in advance of the formation of the side panel |44. As the side panel |46 is formed the cam |34 effects forming movement of the forming member 12 to complete the forming of the top flap |52, the forming member 12 returning to nonforming position before the side panel |44 is completely formed. See Figure 18.

As the side panel |44 is formed, the Cam |32 effects forming movement of the forming member 66, after which the forming member 66 is returned to non-forming position. See Figures 18 and 19.

Further advance of the forming unit causes the roller arm |36 to effect forming movement and release of the glue flap forming member 4| and causes the cam |21 to effect forming movement of the side forming member 31, the forming member 31 forming the side panel |43 of the carton blank and the forming member 4| forming the side glue flap |41 of the carton blank. See Figures 14 and 15. The timing of the movements ol the forming members 31 and 4| is such that the forming member 4| forms the glue flap previous to the completion of the side panel |43 and withdraws in time to clear the forming member 31 and yet insure the glue flap underlying the side panel |43. This operation completely forms the side panels of the carton, as shown in Figure 34, the forming member 31 pressing the glued surface of the side panel |43 onto the glue flap |41.

Further advance of the forming unit causes the stud |38 to engage the upper end of the arm 89 of the lock lever 85 and move this lock lever into locking engagement with the lock stud 81, see Figure 15, thus locking the side forming members 31, 38, 25 and 39 in forming position until the glue between the side panel |43 and glue flap |41 is set to secure them together.

Almost simultaneously with the movement of the forming member 31 into forming position, the cam |29 causes the forming member 62 to move into forming position, see Figure 16, thus cornpletely forming the end ap |48, the termination of the cam plate ||1 having permitted the top forming member 56 to move from its partial forming position toward its non-forming to insure its clearing the top flap |48 as it is formed. See Figure 6.

Further advance of the forming unit causes the cams |8 to move the top forming member 56 into its forming position to fully form the outer end of the carton, see Figure 1'7, the locking lever 92 engaging under the lock bar 59 to lock the member 56 in forming position until the glue between the top flaps |48, |49, |5| and |52 is set to secure them together.

Figure 36 illustrates the carton as formed in the machine, the bottom flaps |53, |54, |55 and |56 being disposed in the planes of the side panels of the carton preparatory to filling and sealing.

In the movement of the forming unit chain, the forming units function in succession and after the forming units are actuated for the forming operation as above described, they continue their movement in locked condition for an interval of sufficient length to maintain the carton formation tuntil the glue is set to secure the carton formaion.

After this glue setting interval of movement of the locked, forming units, the stud |4| is engaged by the lower ends of the arms 9| of the lock levers 85 to actuate these lock levers into released position for the opening of the forming units, see Figures 1 and 5, the opening movement of each member 25 on the pivot mounting 26 causing the locking lever 92 to engage the projection 96 of .the link |5 and to be moved thereby out of engagement with the lock bar 59, as shown in dotted lines in Figure 13, thus effecting opening movement of the top forming member 56.

method of my invention in its preferred form and the method as well as its advantages are more or less obvious from the descriptionv of operation of the machine.

Generally, my method, of forming a carton from a blank having circumscribing side panels and end flaps adapted to form one end of the carton, consists in forming the circumscribing sides and said end of the carton in at least partially concomitant and preferably in predetermined relation, as shown, the circumscribing sides and said end of the carton being formed on an inner form means functioning in the formation of both the circumscribing sides and end of the carton.

Where the usual type of glue is used to nally secure the carton formation, the glue is initially applied to the proper portions of the blank to ultimately secure the carton formation, and then the carton formation is effected, as above described, previous to the setting of the glue, the resulting carton formation being maintained until the glue is set to secure the carton formation.

Where a dispenser formation is involved, as above described, including a dispenser side flap formed from material of one end flap and attached to the side of an adjoining end ap of end flaps adapted to form one end of the carton, the method consists in forming said dispenser side flap with reference to said adjoining end flap, the circumscribing sides and said end of the carton in at least partially concomitant and in predetermined relation, and completng the formation of said dispenser side ilap with reference to said adjoining end ap and only partially forming said adjoining end flap previous to the completion of the formation of the circumscribing sides. Thus the dispenser formation is effected in a relatively positive and practical manner which does not interfere with the formation of the carton proper. The gluing phase as above referred to is also contemplated in the formation of dispenser type cartons.

Having thus described my invention, I do not wish to be limited to the precise details described, as changes may be readily made without departing from the spirit of my invention, but having vpartially form a carton from a blank, and a conveyor to move said outer forming members and said interior form means continuously.

2. In a device of the character described, the combination of a plurality of outer side forming members, an outer end forming member, pivotal mounting means whereby said Tside forming members are sequentially arranged and are relatively angularly movable facewise substantially in a common plane to and from a position in which the forming planes thereof are disposed at one side of a carton blank receiving plane and another position in which saidv forming planes are in forming; position, additional pivotal mounting means whereby said end forming member is pivotally' movable in a plane substantially normal to said first mentioned plane to and from aposition in which the forming plane arf-*1.418

The herein described machine practices" thev l Sposed'at said side of said receiving plane and another position in which its forming plane is in forming position, inner forming means oppositely'cooperating with said forming members, and means to move said inner and outer forming members continuously during a carton forming operation.

3. In a. device of thefcharacter described, the combination of a .plurality of outer forming members, mounting means between said forming members whereby said forming members are relatively movable facewise to land from carton blank receiving and forming positions, additional forming means oppositely cooperating with said forming members, additional mounting means whereby said outer forming members are relatively movable as a unit to and away froml said additional forming means, and conveyor means to move said outer forming members and said additional forming means continuously during a carton forming operation.

4. In a device of the character described, the

, combination of a plurality of outer forming members, pivotal mounting means between said forming members whereby said forming members are articulated for relative movement facewise to and from carton blank receiving and forming positions, inner forming means oppositely c0- operating with said forming members, and additional pivotal mounting means associated with but one of said outer forming members whereby said outer forming members are relatively movable as a unit to and away from said inner forming member.

5. In a device of the character described, the combination of a plurality of outer forming members, pivotal mounting means between said forming members whereby said forming members are articulated for relative movement facewise to and from a position in which the forming planes thereof are disposed at one side of a carton blank receiving plane and another position in which said forming planes are in forming position, an inner form about which said forming members are adapted to at least partially form a carton from a received blank in their relative movement to said forming position, and additional mounting means associated with but one of said outer forming members whereby said outer forming members are relatively movable as a unit to and away from said inner form.

6. In a device of the charcter described, the

combination of a plurality of outer side forming members, pivotal mounting means between said forming members whereby said forming members are articulated for relative movement facewise to' and from carton blank receiving and forming positions, an outer end forming member, additional pivotal mounting means between said end forming member and one of said side forming members whereby these forming members are articulated for relative movement facewise to and from carton blank receiving and forming positions, an inner form oppositely cooperating with said forming members, further additional mount said forming members whereby said forming u members are articulated for relative movement facewise to and from carton blank receiving and forming positions, an outer end forming member, additional pivotal mounting means between said end forming member and one of said side forming members and disposed on an axis transverse to said first mentioned pivotal mounting means whereby these forming members are articulated for relative movement facewise to and from carton blank receiving and forming positions, an inner form oppositely cooperating with said forming members, and further additional pivotal mounting means associated with said one side forming member and disposed on an axis transverse to said first mentioned pivotal mounting means whereby said forming members are relatively movable as a unit to and away from said inner form. y

8. In a device adapted to receive a at sheet and form therefrom the side wall and one end of a carton, the combination of a forming unit comprising a plurality of forming members relatively movable to and from carton formingy position, means mounted for relative dened path movement with reference to said unit and adapted to effect relative carton forming movement of said forming members, and conveyor means to move said forming unit continuously past a plurality of Cams.

9. In a device adapted to receive a at sheet and form therefrom the side walls and one end of a carton, the combination of a forming unit comprising a plurality of forming members relatively movable to and from carton forming position, means mounted for relative defined path movement with reference to said unit and adapted to effect carton forming movement of said forming members with said relative defined path movement, and conveyor means to move said forming unit continuously.

l0. In a device of the character described, the combination of a forming unit comprising inner forming means and a plurality of outer forming members relatively movable with reference to each other and as a group with reference to said inner forming means to and from carton forming position, means mounted for relative defined path movement with reference to said unit and adapted to effect said relative group movement and said relative outer forming member movement into carton forming position in timed relation in said relative defined path movement, and conveyor means to move said forming unit continuously.

11. In a device adapted to receive a flat blank and form therefrom the side walls and one end 0f a carton, the combination of a forming unit comprising a plurality of forming members relatively movable to and from forming position, means mounted for relative defined path movement with reference to said unit and adapted to eiect relative carton forming movement of said forming members, additional forming means mounted for said relative defined path movement with reference to said unit and adapted to cooperate with said forming members and said last mentioned means for the formation of a carton, and said forming members being in continuous movement during the forming operation, and means to convey said forming unit and said additional forming means past a plurality of stationary cams.

12. In a device of the character described, the

combination of a forming unit comprising a plu- 1 rality of forming members relatively movable to and from carton forming position, means mounted for relative defined path movement with reference to said unit and adapted to effect carton forming movement of said forming members with said relative defined path movement, additional forming means mounted for said relative defined path movement with reference to said unit and adapted to cooperate with said forming members and said last mentioned means with said relative defined path movement for the formation of a carton, and means to move said forming unit and additional forming means at a substantially constant velocity.

13. In a device of the character described, the combination of a forming unit comprising a plurality of forming members relatively movable to and from carton forming position, means mounted for relative defined path movement with reference to said unit and adapted to effect relative carton forming movement of said forming memposition upon positioning of said forming memf bers in forming position by said first mentioned means, means mounted for said relative defined path movement with reference to said unit and adapted to release said locking means subsequent to the locking thereof in said relative defined path movement, and a conveyor for said forming unit.

14. In a device of the character described, the combination of a forming unit comprising a plurality of forming members relatively movable to and from carton forming position, means mounted for relative defined path movement with reference to said unit and adapted to effect relative carton forming movement of said forming members in a portion of said path, releasable locking means carried with said unit and actuable for locking said forming members in carton forming position, means mounted for said relative defined path movement with reference to said unit and adapted to lock said forming members in forming position as effected by said first mentioned means, means mounted for said relative defined path movement with reference to said unit and adapted to release said locking means subsequent to said locking thereof in said relative defined path movement, and means to move said forming members continuously during a carton forming operation.

15. In a device of the character described, the combination of a forming unit comprising a plurality of forming members relatively movable to and from forming position, means to move said forming unit at a substantially constant velocity dur'ng a carton forming operation, means mounted for relative defined path movement with reference to said unit and adapted to effect relative carton forming movement 0i said forming members, additional forming means mounted for said relative dend path movement with reference to said unit and adapted to cooperate with said forming members and said last mentioned means for the formation of a carton; releasable locking means for locking said forming members in carton forming position upon positioningof said forming members in forming position by said first mentioned means, and means mounted for said relative defined path movement with reference to said unit and adapted to release said locking means subsequent to the locking thereof in said relative defined path movement.

16. In a device of the character described, the combination of a forming unit comprising inner (ifi form means and a plurality of outer forming members relatively movable with reference to each other and as a group with reference to said inner forming means to and from carton forming position, means mounted f or relative defined path movement with reference to said unit and adapted to effect said relative group movement and said relative outer forming member movement into carton forming position in timed relation in said relative defined path movement. additional forming means mounted for said relative defined path movement with reference to said unit and adapted to cooperate with said forming'members and said last mentioned means for the formation of a carton, and a conveyor to move said forming unit past a plurality of cams.

17. In a device of the character described, the combination of a forming unit comprising inner form means and a plurality of outer forming members relatively movable with reference to each other and as a group With reference to said inner forming means to and from carton forming position, means mounted for relative defined path movement with reference to said unit and adapted to effect said relative group movement and said relative outer forming member movement into carton forming position in timed relation in said relative defined path movement. additional forming means mounted for said relative definedv path movement with reference to said unit and adapted to cooperate with said forming members and said last mentioned means for the formation of a carton, releasable locking means for locking said forming members in carton forming position upon positioning of said forming members in forming position by said first mentioned means, means mounted for said relative defined path movement with reference to said unit and adapted to release said locking means subsequent to the locking thereof in said relative defined path movement, and a conveyor to move said forming members continuously during a carton lforming operation.

18. In a device of the character described, the combination of a forming unit comprising a plurality of forming members relatively movable to and from carton forming position` means mounted for relative defined path movement With reference to said unit and adapted to effect relative carton forming movement of said forming members. additional forming means including a forming member mounted for said relative defined path movement and also mounted for movement into and out of forming position, means for actuating said last mentioned forming member into and out of its forming position for cooperation with said plurality of forming members, and conveyor means to move said forming members continuously.

19. In a device of the character described, the combination of a forming unit comprising a plurality of forming members relatively movable to and from carton forming position. means mounted for relative defined path movement with reference to said unit and adapted to effect relative carton forming movement of said forming members. additional forming means mounted for said relative defined path movement with reference to said unit and comprising forming members c-ppositely cooperating with said forming members and at least one of which is for movement into and out of forming position, means for actuating said last mentioned movable forming member into and out of forming position for cooperation with said first mentioned plurality of forming members, and a conveyor for moving said forming members continuously during a carton forming operation.

20. In a device of the character described,l the combination of a forming unit comprising a plurality of forming members relatively movable to and from carton forming position, means mounted for relative defined path movement with reference to said unit and adapted to e'ect relative vcarton forming movement of said forming members with said relative defined path movement, l additional forming means mounted for saidrelative defined path movement with reference to said unit and comprising oppositely cooperating forming members c-ne of which is mounted for pivotal movement on an axis transverse to said -relative defined path movement into and out of forming position, means for effecting actuation of said last mentioned movable forming member into and out of forming position with said relative defined path movement, and means to move Said forming members continuously past a plurality of cams.

21. In a device of the character described, the combination of a plurality of forming units each comprising a plurality of forming members relatively movable to and from carton forming position, mounting means for said units whereby said units are spaced along a defined path and arranged correspondingly with reference thereto, means mounted for relative movement with reference to said units along said defined path and adapted to effect relative carton forming move- 'ment of the forming members of said units sequentially in said relative defined path movement, and means to move s-aid forming members continuously at a substantially constant velocity.

22. In a device of the character described, the

tion, mounting means for said units whereby said units are spaced along a ,defined path and arranged correspondingly with reference thereto, means mounted for relative movement with reference to said uni-ts along said defined path and adapted to effect relative carton forming movement of the forming members of said units sequentially in said relative defined path movement, additional forming means mounted for said relative defined path movement with reference to said units and adapted to cooperate with said forming members of each unit sequentially and said second mentioned means in said relative defined path movement, and conveyor means to move said forming members continuously past a plurality of stationary cams.

23. In a device of the character described, the combination of a plurality of forming units each comprising a plurality of forming members relatively movable to and from carton forming position, mounting means for said units whereby said units are spaced along a defined path and arranged correspondingly with reference thereto, means mounted for relative movement with reference to said units along said defined path and adapted to effect relative carton forming movementof the forming members of said units sequentially in said relative defined path movement, releasable locking means for automatically locking said forming members of each unit in forming position upon positioning of said forming members in forming position by said second mentioned means, means mounted for said relav tive defined path movement with reference to said units and adapted to release said locking means individually with reference to each unit subsequent to the locking thereof in said relative deiined path movement, and a conveyor to provide continuous motion for said forming members.

24. In a device of the character described, the combination Aof a plurality of forming units each comprising a plurality of forming members relatively movable to and from carton forming position, means to convey said forming units past a plurality of stationary cams, mounting means for said units whereby said units are spaced along a defined path and arranged correspondingly with reference thereto, means mounted for relative movement with reference to said units along said dei-ined path and adapted to effect relative carton forming movement of the forming members of said units sequentially in said relative deiined path movement, additional forming means mounted for said relative deiined path movement with reference to said units and adapted to cooperate with said forming members of each unit sequentially and said second mentioned means in said relative deiined path movement, releasable locking means for automatically locking said forming members of each unit in forming position upon positioning of said forming mem'- bers in forminglposition by said second mentioned means, means mounted for said relative defined path movement with reference to said units and adapted to release said locking means individually with referenceto each' unit subsequent to the locking thereof in said relative `deiined path movement.

25. In a'device of the character described, the combination of aU plurality of forming members, mounting means whereby said forming members are relatively -movable to and from carton blank receiving and forming positions, additional forming means oppositely cooperating with said forming membe forming means operative to effect -a superposed relation `of certain carton blank portions in cooperation with at least one of said forming members, and conveyor means to move said forming members continuously during a carton forming operation.

26. 1n a device of the character. described, the

combination of a plurality of outer forming members, pivotal mounting means whereby said forming members are relatively angularly movable facewlse to and from a position in which the forming. planes thereof are disposed on one side o f a carton blank receiving pition-andanother position in which said forming planes are in forming position, inner forming means oppositely cooperating with said forming members, at least one additional forming member movably mounted on one of said forming members and operative to effect a superposed relation of certain carton blank portions in cooperation with at least one of the remainder of said forming members, and means to move said forming members at a substantially constant velocity throughout a carton forming operation.

27. In a device of the4 character described, the combination of a plurality of outer Yforming members, pivotal mounting means whereby said forming members are sequentially arranged and are relatively angularly movable facewise substantially in a common plane to and from carton blank receiving and forming positions, an

interior form about which said forming memfurther additionall erating/with said forming members, a glue ap engaging means operative to effect superposed relation of a terminal glue iiap of the carton blank with the opposite terminal carton side portion of the carton blank in cooperation with the forming member corresponding with said terminal side portion of the carton blank, and a conveyor to move said forming members at a substantially constant velocity throughout a carton forming operation. l

28. In a device of the character described, the combination of a plurality of forming members, pivotal mounting means whereby said forming members are sequentially arranged and are relatively angularly movable facewise substantially in a common plane to and from a position in which the forming planes thereof are disposed on one side .of a carton blank receiving plane to another position in which said forming planes are in forming position, an inner form about which said forming members are adapted to form circumscribing sides of a carton, and a glue flap engaging member pivotally mounted on one terminal member of said forming members for angular movement substantially in the plane of relaerative to effect superposed relation of a terminal glueilap of the carton blank with the opposite terminal carton side portion of the carton blank in cooperation with the other terminal member of said forming members.

29. In a device of the character described, the combination of a plurality of outer side forming members, an outer end forming member, mounting means whereby said forming members are relatively movable to and from carton blank receiving and forming positions, inner forming means oppositely cooperating with said forming members, additional forming means operative to effect a superposed relation of certain carton blank portions in cooperation with at least one of said side forming members, further additional forming means operative to effect a superposed on one side of a carton blank receiving plane to -another position in which said forming planes are in forming position, additional pivotal mounting means whereby said end forming mem.

ber is pivotally movable in a plane substantially normal to said first mentioned plane to and from a position in which the forming plane thereof is disposed at said side of said receiving plane and another position in` which its forming plane is in forming position, inner forming means oppositely cooperating with said forming members, a glue flap engaging member pivotally mounted on one terminal member of said side forming members and .operative to effect superposed relation of a terminal glue flap of the carton blank with the opposite terminal carton side portion of the cart0n blank in cooperation with the other terminal member of said side forming members, and a plurality of carton end iiap engaging members pivotally mounted on diierent of said side forming members and operative to effect superposed relation of related end forming flaps of the carton blank in cooperation with said end forming member.

31. In a device of the character described, the combination of inner form means including an auxiliary box forming member, said member being mounted on said inner form and provided with mounting means for permitting its projection beyond the end or face of the inner form and for retraction into a position substantially iiush with said form.

32. In a device of the character described, the combination of an inner form member provided with a recess, and an auxiliary inner box forming member mounted on said inner form member for movement to and from a position projecting from said inner form member and a retracted position substantially within said recess.

33. In a device of the character described, the combination of inner form means including an auxiliary inner box forming member mounted on said inner formed means for movement to and from a position projecting from said inner form means, and means yieldingly urging said auxiliary form means into projecting position.

34. In a device of the character described, the combination of a multi-sided inner form member provided with a recess in one side thereof and opening on an adjoining side thereof, and an auxiliary inner form member pivotally mounted on said inner form member on an axis normal to said rst mentioned side and disposed in the region of said second mentioned side and another side of said inner form member adjoining said first mentioned two sides for movement to and from a position projecting from said second mentioned side and a retracted position substantially within said recess. l

35. In a device of the character described, the combination of a multi-sided inner form member provided with a recess in one side thereof and opening on an adjoining side thereof, an auxiliary inner form member pivotally mounted on said inner form member on an axis normal to said rst mentioned side and disposed in the region of said second mentioned side and another side of said inner form member adjoining said first mentioned two sides for movement to and from a position projecting from said second mentioned sideand a retracted position substantially within said recess, stop means limiting projecting movement of said auxiliary formnember, and spring means yieldably urging said auxiliary form member into projecting position.

' ment to and from projecting and retracted positions, and outer forming means oppositely cooperating with said inner frm means and including two relatively movable forming members oppositely cooperating with said auxiliary form member in diierent planes.

38. In a device of the character described, the combination of inner form means including an auxiliary form member mounted for movement to and from projecting and retracted positions, means yieldably urging said auxiliary form member into projecting position, and outer forming means oppositely cooperating with said'inner form means and including two' relatively movabe .forming members oppositely cooperating with said auxiliary form member in different planes and one forming member of whichis adapted to actuate said auxiliary form member into retracted position.

39. In a device of the character described, the combination of a multi-sided inner form member provided with a recess in one side thereof and opening on an adjoining side thereof, an auxiliary inner form member pivotally mounted on said inner form member on an axis normal to said first mentioned side and disposed in the region of said second mentioned side and another side of said inner form member adjoining said first mentioned two sides for movement to and from a position projecting from said second mentioned side and a retracted position substantially within said recess, and outer forming means oppositely cooperating with said inner form members and including two forming members oppositely cooperating with said auxiliary form member in planes normal to each other and one forming member of which is movably mounted and adapted to actuate said auxiliary inner form member into retracted position.

40. In a device of -the character described, the combination of inner form means, a plurality of relatively movable outer forming members opv positely cooperating with said inner form means, conveyor means to move said forming members and said form means continuously, means for eliecting forming movement of said outer forming members in at least partially concomitant relation.

' 4l. In a device of the character described, the combination of inner form means, a pluralityof relatively movable outer forming members oppositely cooperating with said inner form means and including side and end forming members, means for effecting forming movement of said forming members in at least partially concomitant and in predetermined relation, and means to move said inner form means and said outer forming members at a substantially constant velocity past a plurality of cams.

42. In a device of the character described, the combination of inner'form means, a plurality of relatively movable outer side forming members and a plurality of relatively movable outer end forming members oppositely cooperating with said inner form means, means for eiiecting forming movement of said side and end forming members in at least partially concomitant and in predetermined relation, and means to move said inner form means and said forming members together during a carton forming operation.

43. In a device of the character described, the combination of inner form means including an auxiliary box forming member mounted for movement to and from projecting and retracted positions, a plurality of relatively movable outer forming members oppositely cooperating with said inner form member, andmeans for eiecting forming movement of said outer forming mem- .bers in at least partially concomitant and in predetermined relation.

44. In a device of the character described, the

combination of inner form means including an auxiliary form member mounted for movement to and from projecting and retracted positions, a plurality of relatively movable outer forming members oppositely cooperating with said inner form means, said outer forming members including two relatively movable forming members oppositely cooperating with said auxiliary form member in different planes and one of which is adapted to actuate said auxiliary form member into its retracted position, and means for effecting forming movement of said outer forming members in at least partially concomitant and in predetermined relation.

45. In a device of the character described, the combination of inner form means including an auxiliary form member mounted for movement to and from projecting and retracted positions, outer forming means oppositely cooperating with said inner form means and comprising a plurality of relatively movable side forming members and a plurality of relatively movable end forming members one of which oppositely cooperates with said auxiliary form member in one plane adapted to actuate the same into retracted position, an additional forming member relatively movable with reference to said inner form means and oppositely cooperating with said auxiliary form member in the plane of movement of said auxiliary form member, and means for effecting forming movement of said side and end forming members and said additional forming member relative to said inner forming means in at least partially concomitant and in timed relation.

46. The method of forming a carton from a blank having circumscribing side panels, end flaps adapted to form one end of the carton and a dispenser formation including a dispenser side iiap formed from material of one of said end flaps and attached to the side of an adjoining end flap, which consists in forming said dispenser side ap with reference to said adjoining end flap, said circumscribing sides and said end of the carton in at least partially concomitant and in predetermined relation,- and completing the formation of said dispenser iiap with reference to said adjoining end flap and only partially forming said adjoining end flap previous to the completion of the formation of said circumscribing sides.

47. The method of forming a carton from a blank having circumscribing side panels, end flaps adapted to form one end of the carton and a dispenser formation including a dispenser side flap formed from material of one of said end flaps and attached to the side of an adjoining end ap, which consists in forming said dispenser side flap with reference to said adjoining end iiap, said circumscribing sides and said end of the carton in at least partially concomitantV and in predetermined relation, and completing the forming of said dispenser side flap with reference to said adjoining end ap and only partially forming said adjoining end flap previous to the completion of the formation of said circumscribing sides and completing the formation of said adjoining end flap after the completion of the formation of said circumscribing sides and the forming of other of said end iiaps in underlying relation with said adjoining end flap.

48. The method of forming a carton from a blank having circumscribing side panels, a side glue flap, end flaps adapted to form one end of the carton and a dispenser formation including a dispenser side ap formed from material of one of said end iiaps and attached to the side of an adjoining end ap, which consists in initially applying glue to the proper portions of the blank to ultimately secure said side panels, glue flap and end flaps in carton forming relation, then forming said dispenser side flap with reference to said adjoining end flap, said circumscribing sides and side glue flap and said end of the carton in at least partially concomitant and in predetermined relation and previous to thesetting of said glue, and maintaining the resulting carton formation until said glue is set to secure the carton formation.

49. Themethod of forming a carton from a blank having circumscribing side panels, a side glue flap, end flaps adapted to form one end of the carton and a dispenser formation including a dispenser side flap formed from material of one of said end flaps and attached to the side of an adjoining end flap, which consists in initially applying glue to the proper portions of the blank to ultimately secure said side panels, glue flap and end flaps in carton forming relation, then forming said` dispenser side flap with reference to said adjoining end flap, said circumscribing sides and said side glue flap and said end flaps of the carton in at least partially concomitant and in predetermined relation, and completing the forming of said dispenser side flap with reference to said adjoining end flap and only partially forming said adjoining end flap previous to the completion of the formation of said circumscribing sides and completing the formation of said adjoining end iiap after the completion of the formation of said circumscribing sides and the forming of other of said end flaps in underlying relation with said adjoining end ap, and maintaining the resulting carton formation until said glue is set to secure the carton formation.

50.' In a device of the character described, the combination of a plurality of sets of inner and outer forming members, means for moving said sets continuously, means for separating the outer forming members from the'inner forming members to receive nat blanks, and means for operating the outer forming members to fcirm the blanks around the inner members during continuous movement of said members.

51. In a device for forming a carton from a flat blank, the combination comprising: A plurality of sets of inner and outer forming members, means to move said sets continuously, means to separate the outer forming members from the inner forming members to receive fiat blanks, means to operate the outer forming members to form the blanks around the inner members, and means to retain said cartons under pressure until their adhesive sets.

52. In a device for forming cartons, the combination comprising: Outer forming members having a plurality of articulated plates, inner forming members coacting with said outer forming members to form a carton from a at blank, means to separate said inner and outer forming members to receive said blank, and means to move said inner and outer forming members continuously during a carton forming operation.

53. In a device for forming cartons, the combination comprising: An outer forming member having a plurality of articulated plates, mounting means whereby said outer forming member is movable outwardly to receive a carton blank and inwardly to a carton forming position, an inner forming member oppositely cooperating with said outer forming member to form a car- 76

Images