US2045230A

US2045230A - Packaging machine

Info

Publication number: US2045230A
Application number: US661319A
Authority: US
Inventors: Stanley R Howard
Original assignee: Pneumatic Scale Corp
Current assignee: Pneumatic Scale Corp
Priority date: 1933-03-17
Filing date: 1933-03-17
Publication date: 1936-06-23
Anticipated expiration: 1953-06-23

Description

June 23, 1936., s, R HOWARD 2,045,23@

PACKAGING MACHINE Filed March 17, 1933 '6 Sheets-Sheet l 7.6% QLUMLL ATTORNEY.

1N VENTOR.

June 23, 1936. 5 R HOWARD 2,045,230

PACKAGING MACHINE Filed March 17, 1935 s Sheets-Sheet 3 INVENTOR.

, SM QAMQLQ,

ATTORNEY.

23, 1936- s. R. HOWARD 2,045,230

PACKAGING MACHINE Filed March 17, 1933 6 Sheets-Sheet 4 O Q 74 /yfl 1 as: O I I Q L J 'y. 143 0 @121?" 0 142 INVENTOR.

2mm, @AMM ATTORNEY.

June 23, 1936. s. R. HOWARD 2,045,230

PACKAGING MACHINE Filed March 17, 1933 6 Sheets-Sheet 5 ATTORNEY.

flame 23, 1936.

S. R HQWARD PACKAGING MACHINE '6 Sheets-Sheet 6 Filed March 17, 1933 llllllll INVENTOR.

ATTORNEY.

Patented June 23, 1936 UNITED STATES PATEN racxsamo Stanley 3. Howard, Milton, Mala, assignor Pneumatic Scale Corporation, limited, Quincy,

Massach ts Mass a corporation of nset Application March 17, 1933, Serial No. 661,319

'19 Claims.

This invention relates to a packaging machine. One object of the invention is to provide a novel and improved packaging machine which is adapted to close and seal an open end of a fibrous container, such as a carton or paper bag, in a novel and superior manner to produce an efliciently sealed container.

Another object of the invention is to provide a novel and improved packaging machine in which provision is made for preparing a moisture-proof container to remove the moistureproof coating from the marginal portions of the inner surfaces of the body of the bag at an open end thereof, and in which provision is made for closing and adhesively sealing the open end of the bag with the paper to paper contact extending across the end of the bag.

A still further object of the invention is to provide a novel and improved machine for making an open end container and thereafter closing and adhesively sealing the open end with the paper to paper contact extending entirely across the end of the bag.

Another object of the invention is to provide a novel and improved method for making an eillciently closed and sealed container.

With these general objects in view, the invention consists in the machine, in the method and. in the various structures; arrangements and combinations of parts, all as hereinafter described and particularly defined in the claims at the end of this specification.

In the drawings illustrating a packaging machine embodying the difierent features of the invention, Fig. .1 is a side elevation of the machine; Fig. 2 is a sectional view taken on the line 2-2 of Fig. 1, viewed in the direction of the arrow, with the upper portion of the container forming mechanism omitted; Fig. 3 is a plan view of a portion of the machine shown in Fig. 2; Figs. 4, 5 and 6 are details to be referred to of mechanism for removing the parafiinwax or other moistureproof coating to prepare the container for the subsequent sealing operations to be described; Fig. 7 is a sectional detail of the filling mechanism, taken on the line 1-1 of Fig. 1; Fig. 8 is a similar view taken on the line 8-8 of Fig. 1 and il- (on. as -s) "10mm; down the previously sealed top of the bag;Fig.12isasecti onaldetail takenonthe line lI-i! of.Flg. 1, illustratingthe mechanism for folding in the end tabs of the lining: F18. 13 is a detail in plan illustrating the mechanism for 5 rotating the carton holding pockets, as will be described; Figs. 14 and 15 are sectional details on the lines ll-ll and lS-il respectively of Fig. 13; Figs. 16 and 17 are details and plan in elevation respectively of the package pusher for trans- 10 porting the container with the liner therein; Fig. 18 is a sectional detail taken on the line ll-il of Fig. 1; Figs. 19 and 20 are perspective views illustrating the mechanism for folding and sealing the flaps oi the outer carton; Fig. 21 is an 16 end view of the mechanism shown in Fig. 20; Fig. 22 is a sectional detail taken on the line 2222 of Fig. 1 and illustrating the mechanism for pressing the closed and sealed top of thecarton; Fig. '23 is an end view illustrating the go mechanism for ejecting the completed cartons from the machine; Figs. 24 through 33 are diagrammatic views illustrating the successive steps in the production of the present closed and sealed lined carton; and Fig. 34 is a tic view 2:; illustrating the modified form of mechanism for removing paraflln or other coating from the paper web.

In general, the present invention contemplates a packaging machine for producing an improved so and emciently sealed container. The container may comprise a paper bag or a carton,'and, as herein shown, the machine is adapted to produce a lined carton, that is, a carton provided with an inner paper container or bag, and provision is 35 made in the illustrated'machine for making the inner container or bag from a roll supply of bag forming material, introducing the formed inner container or liner into a carton and subsequently filling the inner container. Thereafter provision 40 is made for folding and sealing the mouth of the liner or inner container in a manner such as to provide an efllciently closed and sealed container or liner and for subsequently folding the sealed portion down into a position to permit the flaps of the outer container or carton to be folded and sealed to produce a completely closed and sealed lined package. In some instances it may be desirable to utilize amoisture-proof material for the production of the liner or inner container and in practice such'material may comprise waxed or paraiiin coated paper, and when such waxed or parafiln coated paper is used for the construction of the container, provision is made for removing the moisture-proof coating such as the parailln from the inner portion of the mouth of the bag or container so that during the subsequent folding and sealing operations a paper to paper contact and seal may be produced, preferably extending entirely across the mouth of the bag or container.

While as herein shown the machine is designed to produce a lined package in which provision is made for removing paraflln or other moistureproof material from the paraffin coated web from which the liner or inner package is produced, nevertheless in its broader aspects the invention may be embodied in machines for producing a unitary container which is closed and sealed in the improved manner whether or not moistureproof material is used in the construction of the container.

Referring now to the drawings, and particularly to Figs. 1, 2, and 3 hereof, the illustrated machine is provided with an incoming conveyor ill by which containers, preferably cartons open at their upper end, are delivered in succession to succeeding pockets l2 of carton holding members 14 mounted upon and forming a part of a rotatable spider IS. The latter is intermittently moved during the operation of the machine so that after a container has been introduced into a pocket, the pocket and the outer container are intermittently moved into a succeeding station in which the inner container or lining is introduced into the outer container held in thepocket. The lining or inner container is preferably formed from a supply of material contained in a supply roll l8 which is drawn off in the manner illustrated in Fig. 1 and conducted through suitable mechanism for forming a lining blank therefrom and subsequently folding the blank around the usual forming block 20 and folding and sealing the bottom flaps to form a container open at its top and closed at its bottom. The details of construction of the mechanism for forming the lining and for introducing it into the package may comprise that illustrated in the patent to Doble and Robinson, No. 1,247,238, to which reference may be made for a complete description thereof. Inasmuch as the details of this mechanism are well known and fully set forth in said patent, and of themselves constitute no part of the present invention, it is believed to be suflicient to state that, by the operation of the mechanism referred to, succeeding inner containers or linings are produced and introduced into the outer containers and which for convenience of description will be hereinafter referred to as cartons.

Reference is now made to Figs. 24 through 33 which illustrate diagrammatically the successive steps in the formation of the inner container or liner about the usual forming block illustrated in said Doble and Robinson patent, and from which it will be observed that after the liner has been introduced into the carton, the liner is arranged to project above the open upper end of the carton in a condition such as is illustrated in Fig. 28.

After the liner has thus been introduced into the carton, the next step in the operation of the machine comprises the intermittent movement of the spider with the lined carton from a position indicated in Fig. 3 at station A to the position indicated as station B, and provision is then made for transferring the lined carton from the pocket l2 at station B to a corresponding pocket 23 comprising a part of an endless conveyor 24 by which the lined cartons are successively moved through a number of stations to be filled and closed and sealed as will be described. As illustrated, the transfer of the lined carton to the pocket 23 occurs while the pocket 23 of the conveyor 24 is at station No. i in the successive move- 5 ments of the conveyor.

As herein shown, the mechanism for effecting the transfer of the carton from the pocket at station B to the aligned pocket 23 of the endless conveyor at station I, and also the mechanism 10 for intermittently moving the conveyor 24, operates in timed relation to the operation of the spider l5 and, as shown in Figs. 2 and 3, a cam shaft 30 for effecting the transfer of the carton is arranged to make one revolution at each cycle 1d of operation of the machine corresponding to a quarter turn of the spider l5. As shown in Fig. 2, the cam shaft 30 is connected through a chain 32 and sprockets 33, 34 and through bevel gears 36, 38 to a one-revolution shaft 40 driven, as w'll 29 be described, to make one revolution at ea h quarter turn of the spider l5. Provision is also made for operatively connecting the movement of the spider I5 with the movements of the endless conveyor 24 so that at each quarter turn of the 25 spider an empty pocket 23 on the conveyor is brought into alignment to receive the carton being transferred from station 13 into the pocket at station I. As shown in Fig. 2, the connections include a chain 42 and two sprockets 43, 44, the 39 sprocket 44 being on a counter shaft 46 connected by bevel gears 41, 48 to the intermittently driven shaft upon which the spider I5 is mounted.

Referring now to Fig. 2, the cam shaft 30 is provided with a closed cam 50, and connection is made between the cam 50 and a package pusher 52 through a cam roll 53 on a cam arm 54 connected by a link 55 to a lever 56, and the lever 56 is connected to a block 58 on a rod 59 arranged to slide in hearings in a bracket member 60. The package pusher 52 is mounted upon and depends from the forward end of the rod 59 so that at each revolution of the cam 50 the package pusher is advanced to push the lined package from the pocket l2 at station B to the aligned pocket 23 at station I of the conveyor. As shown in detail in Figs. 2, 16 and 17, the package pusher 52 is constructed so that it may be moved by the package on its backward stroke and will be snapped into position behind the package by a spring 500 so that upon forward movement of the package pusher the package will be moved to the aligned pocket 23 at station I of the conveyor. As shown in Fig. 2, the package is carried from the pocket l2 by the belt l0 into a position to be engaged by the package pusher 52, as above described. Referring now to Figs. 1, 3 and 7, during the continued operation of the machine the endless carrier 24 operates to intermittently advance the pockets 23 carrying the lined carton through an 0 intermediate and idle station 2 to a filling station 3 where provision is made in the illustrated machine for filling the lined carton with goods, and while the details of the filling mechanism per se comprise no part of the present invention, for purposes of illustration a typical filling mechanism has been herein illustrated as including a hopper 60 provided with a measuring drum 62 having four measuring compartments 63 formed by partition members 64 and the measuring drum 62 is arranged to be rotated intermittently from a cam 66 through a cam roll 61 on a cam arm 68 forming one arm of a bell-crank, the second arm 69 of which is connected by a link 10 to an operating arm 12 secured upon the end of the shaft 14 upon which the partition members 84 are mounted. and connection is made between the shaft 14 andthe arm 12 through a pawl II and ratchet 18 to thereby intermittently advance the 5 measuring drum a quarter turn at each revolution of the cam 88. The cam 88 is mounted upon the camshaftllandisarrangedtomakeone revolution at each cycle of operation of the machine.

After the package has thus been filled, the endless carrier operates to intermittently move it through an idle station 4 to asucceedlng station I where provision is made for applying adhesive to the inside of the upper portion .of the mouth of the liner and for thereafter moving outwardly the end portions of the mouth of the liner to bring the two halves of the mouth of the liner into contact and for pressing the same together to effectively provide a seal extending across the entire mouth of the inner bag or liner. As herein shown in Figs. 8, 9 and 10, the mechanism for accomplishing this result comprises a vertically reciprocating member 18 arranged to slide in a guideway in a bracket 80 and which is adapted $5 to be moved into and from operative position a through a closed cam 82 mounted upon the cam shaft 80 and through a cam roller 84 on a cam arm 85 connected by a link 88 to the upper end of the slide and arranged at the proper time in the operation of the machine to cause the operating member 18 to descend into engagement with the mouth of the inner bag or liner. The lower end of the operating member 18 is madeof a width such as, and is also provided with inclined surfaces adapted, to engage the end portions 18 .of the mouth of the inner bag or liner and to force the same outwardly as theoperating member descends. The width of the lower portion of the operating member is such that when the parts are 40 in the position shown in Fig. 10, the mouth of the inner bag or liner will have been moved outwardly by the inclined surfaces to an extent such that the two opposite and intervening side portions 8I of the mouth of the inner bag or liner contact with a gluing member 82 formed as an enlargement upon the operating member 18.

While the parts are in the position illustrated in Figs. 9 and 10, provision is-made for pressing the two side portions 8I of the mouth of the liner into contact with the gluing member 83 to apply adhesive to the inside of the mouth of the liner and, as herein shown, two

presser members

85, 88, preferably of rubber or other yieldable material and having depending curved portions adapted to contact with the neck of the liner below the portion being sealed, as shown in Figs. 8 and 9, are mounted upon

slide members

81, 88 arranged to slide in

bearings

88, 80 forming a part of the machine frame. The

presser members

85, 69 88 are actuated by a spring 82 through mechanism including a lever 84, one arm 85 of which is provided with a segment 85 adapted to mesh with the similar segment 81 on a bell-crank 88 con,- nected by a link- I00 to one of the slide members 81. The second slide member 88 is connected by a similar link IOI to the corresponding arm I02 of a three-arm lever. One arm 84 of .the threearm lever is connected by a link I04 to a cam arm I05 provided with a cam roll I06 adapted to oo- 70 operate with an open cam I01 also mounted upon the cam shaft 30, and the movements of the slide members into operative position are effected by the spring 82, while the movement of the slide members from operative position are effected by the cam I01, and as a result in the operation of the machine the spring operates to exert a yield-. ing pressure which'is utilised together with the yieldable character of the presser members to eifectively press the portions of the mouth of the liner to be sealed into eflicient contact with the 5 glue applying member 82 to thereby apply sufiicient adhesive to the portions of the mouth of the bag to be sealed so that when the operating member is raised through the operation of its cam and through the linkage above described, the in spring actuated presser members operate to yieldingly press the two opposite sides of the mouth of the bag into contact and to provide a complete seal across the entire mouth of the liner. During the upward movement of the operating member 1 the glue applying member 88 is brought between a pair of yieldable glue rolls I88, I08'fed frfln supply rolls III, III rotatable within glue pans I I2, I I8,as illustrated in Fig. 8, to thereby supply fresh glue to the operating member. 20 During the movement of the package into the station at which the mouth of the liner is to be sealed in the manner above described, provision is made for bending outwardly and holding the side flaps at the top of the carton or outer con: 25 tainer, and which would otherwise interfere with the operation of the adhesive applying and sealing mechanism. Referring now more particularly to Figs. 24 through 33 which illustrate di cally successive steps in the formation of the 39 liner, it will be observed that after the liner has been formed and introduced into the carton and at the point in the operation of the machine where the carton and liner move into station 5, the carton and liner are in a condition such as is illus- 35 trated in Fig. 28, and during the movement of the carton into station 5, the two side flaps of the carton are brought into contact with guide and retaining rails II8,- II'I arranged to bend such flaps outwardly and to hold them in a substan- 40 tially horizontal position, such as is illustrated in Figs. 8, 9 and 10, and out of the path of the reciprocatory sealing and pressing

members

85, 85 above described. During the continued movement of the carton into the next station at which pro- .45 vision is made for folding down the top or sealed portion of the liner, and during the operations, at this station, the side flaps of the carton continue to be held down out of the way by the, guide rails II6, I I1 which are arranged to extend slightly 5 beyond this station.

Referring now to Fig.- 11, the mechanism therein illustrated for folding down the top or sealed portion of the liner includes two plate-like folding members I20, I2I. Both folding members are 55 pivotally mounted upon the end' of arms I22 being free to yield upwardly, as shown in Fig. 11, and arranged to be held downwardly against stop screws I24 by. coiled springs I25, I26 arranged as illustrated. With this construction, during the 60 inward movement of the folding plates I20, I2I, provision is made for enabling them to yield upwardly during both their inward and outward movement to prevent the plates from tearing the top of the liner. The arms I22 carrying the fold-- 65 ing sealed portion of the mouth of the liner may be folded during the subsequent inward movement of theremainingfolding plateso that in this manner the upper or sealed portion of the liner may be folded down into a position such as to permit thetopiiaps of the outer cartontobesubsequently closed.

After the described folding operations have been performed by the mechanisms illustrated in Fig. 11, the carton moves through stations 1 and I. and during the movement into station I, see Fig. l, provision is made for turning the pocket 18 holding the carton through 90 in order to present the projecting and flattened down end flaps Ill, see Fig. 30, of the liner to the operation of an additional set of folding members 2, "I which are arranged to operate transversely of the line of travel of the carton, and as illustrated in Fig. 13, the mechanism for effecting the rotation of the carton during movement from station I to station 1 includes a pivotal mounting for the pocket 23, as best shown in detail in Fig. 14, and comprising a depending stud I secured to the bottom of the pocket 23 and by which the pocket is rotatably mounted upon a link i of the conveyor chain 24. The stud I is arranged to project through the hole in the link and the projecting portion has mounted thereon a notched collar I secured to the link of the chain. A second collar I50 provided with projections is keyed to the stud H6 and is arranged to cooperate with the notched collar I49 to control and confine the rotary movement of the pocket to exactly 90. A springl52 is interposed between the bottom of the second collar ill and a nut I53 screwed on the end of the stud. Each pocket 23 is provided with arms I projecting from two opposite corners thereof, and having rollers I50, as illustrated in Fig. 13. One of the rollers I58 is adapted to engage an abutment or bracket l! secured to the machine frame during the movement of the pocket 23 into station 1 and to thereby eflect a turning movement of the pocket through exactly 90. After the folding operations to be described are performed at station 1, provision is made during the movement of the pocket into station II for effecting an additional turning movement in the reverse direction to restore the pocket to its original position occupied when in station 6.

Referring now to Figs. 24-33, it will be observed that when the pocket and carton are in station 1, the upper portion of the liner will occupy the position illustrated in Fig. 30 with the sealed portion of the bag flattened down and the ends I" thereof projecting outwardly beyond the ends of the carton. Provision is made while the package is in station I for folding inwardly the flattened and projecting triangular end portions I" of the liner, and as illustrated in Fig. 12, a folding mechanism is provided which in construction and operation is a duplicate of folding mechanism illustrated in Fig. 11, for folding down the sealed mouth of the inner bag, as above described. As illustrated in Fig. 12, the folding mechanism includes folding plates 2, I, which are arranged to move in under the ends of the flattened triangular ends Hi! of the inner package and to fold the same inwardly into a position such as is shown in Fig. 31. The cams I" for actuating the swinging folding plates are timed so that the folding operations take place one after the other.

After the. package has moved into station 8,

provision is made for folding down the two end flaps III, III of the carton. As illustrated in Fig. 19, this mechanism includes a swinging folding member I mounted upon the end of an arm I" comprising one arm of a bell-crank I81, pivoted on a stud I secured in a bracket Ill, forming part of the machine frame, and the arm I is arranged to be moved by a cam ill on the cam shaft II through a cam roll I, cam arm I", connecting link Ill, and through 1 the second arm I of the bell-crank ill. The inward movement of the folding member I" operates. as will be apparentfrom an inspection of Fig. 19, to fold inwardly one of the end flaps I", "I, and during the advance of the package as it leaves station 8 the remaining flap is folded in by a top and stationary folding plate I. The cam I82 is so designed as to continue the movement of the folding member I to hold down the previously folded flap until the second end 2 flap has been folded by the plate fill into a position to retain both flaps.

During the movement from station 8 to station 9, the projecting side flaps of the carton are passed between glue rolls 2 supplied with glue 2 from any convenient source of supply as from the glue pots 206, the details of construction and mode of operation of which are well-known in this art and need no further description. After the application of adhesive to the exposed upper surfaces of the extended flaps, as illustrated in Fig. 20, the continued movement of the carton through station 9 is utilized through the

flxed folding plates

208, 209 to turn over the two side flaps of the carton in succession and thereby place the carton in a condition so that when it arrives at station Ill a cam operated presser 2l0 may operate to press down and seal the top flaps of the carton. As illustrated in detail in Fig. 22, this presser includes a presser member 2H arranged to slide vertically in a bracket 2!! forming a part of the machine frame, and an actuating cam 2 upon the cam shaft operates through a cam roll 2|! and cam arm H6,

and a pivotally connected connecting rod M I to eifect reciprocation of the presser member iii to perform the pressing operation. Thereafter the closed and sealed carton is moved into station II where a reciprocatory pusher member 220 operates to push it from the pocket 23 laterally onto a discharge conveyor 222 by which it is conveyed from the machine. The pusher member 220 is arranged to slide in a guide 224 being actuated by a cam 226 through a three-arm lever 228, the third arm of which is connected by a spring 229 to retain the cam roll 230 in engagement with the cam 226 and which also functions to perform a resilient ejecting operation and to permit the cam to return the parts after each ejecting operation.

In order to adapt the machine for the manufacture of sealed containers from paper or other material coated with paraifln or similar moistureproof material, provision is preferably made for removing the paraflln or other coating material from those portions of the material which are to form the inside of the mouth of the container to the end that a most efficient and satisfactory seal may be obtained, preferably by folding outwardly those portions of the bag or other container to thereby enable the two halves of the container to be brought together and sealed with a paper to paper contact extending entirely across the mouth of the container. In the illustrated machine provision is madefor removing the mar- 7 ginal portions of the paraflln or other coatinr material from the web as it is drawn from the supply roll it and prior to its presentation to the mechanism for forming the lining. As herein shown in Figs. 1, 4, 5 and 6, this mechanism may comprise two pairs of electrically operated

heating elements

240, 242 of any usual or preferred construction and which are designed to contact with the opposite surfaces of two marginal portions of the web as the latter is drawn between such heating members. Referring now to Figs. 4, 5 and 6, one set of heating plates 240 are mounted upon a bracket 246 secured to the frame of the machine and the other pair of heating plates 242 aremounted upon a crossbar 248 secured to the bracket 246 through bolts 250. The crossbar 248 and the heating plates 242 are yieldingly' urged toward the heating plates at and into yielding engagement with the web passing between the plates by springs 256 encircling the bolts, as shown in Fig. 4. With this arrangement, during the operation of the machine, as the web is drawn from-the supply roll it, the paraflln or other waterproof coating material is melted as the web is drawn between the heating plates andthe amount of paraffin or other coat- 7 ing along the marginal portions of the web is reduced sumciently so as to enable a paper to paper contact to be secured when the mouth of the bag is subsequently closed and sealed in the manner previously described.

For some purposes Imay prefer to remove the paraflln or other coating from one surface only ofv the web as it is drawn from the supply roll l8, and as illustrated in Fig. 1 an idler roll 260 may be used in conjunction with a single pair of heating plates 242.

If found advantageous, the modified form of mechanism illustrated in Fig. 34 may be employed for removing the paraflin from one or both surfaces of the paraflln coated web as it is drawn from the supply roll l8, and as illustrated therein, the web is caused to pass between a pair of heating rolls 210 by which the paraffin coating is melted along the desired marginal edges of the web, and thereafter the web is caused to come in contact with movable absorbent members 212 by which the molten paraiiln may be absorbed to be removed from the web. As illustrated in Fig. 34, the movable absorbent members 212 comprise fibrous absorbent belts arranged to run around a series of guide rolls 214 and through a tank 216 which may contain a bath of solvent for the paraflin or other coating. As the web is drawn upwardly from the solvent bath within the tanks 218, it is caused to pass through squeeze rolls 218 for removing the solvent and rendering the belts 212 again highly absorbent as they come in contact with fresh portions of the web from which molten paraflln is to be removed. The belts 212 are preferably arranged to be driven through suitable mechanism, not shown, intimed relation to the movement of the web. As used throughout the claims, the term "longitudinal axis of the containersis intended to define the major axis of the container, and in the machine means are provided for effecting the rotation of the container about the longitudinal axis thereof for the purpose of presenting different sets of flaps at the same end of the container to the operation of succeeding folding instrumentalities.

By the terms para and parailln paper" as used throughout the specification and claims hereof, I intend to include various coating materials and various saturated or coated papers lowing claims.

hesion with glue or similar adhesives, and while in the illustrated machine heating plates have been illustrated for the purpose of removing the 5 paramn, it will be understood that other means may be employed if found advantageous, particularly in those instances where other types of coating or saturating materials instead of par- 1 aflin are employed. 10

'While the preferred embodiment of the invention has been herein illustrated and described, it will be understood that the invention may be'embodied in other forms within the scope of the fol- Having thus described the invention, what is claimed is:--

1. In a machine of the character described, in combination, container forming means, means for supplying paraffin paper to the container forming 20 means to form the container, means for removing portions of the parafiln from the material being supplied to the container forming means, means for securing said container, and means for closing and sealing the mouth of the container, 25 said paraffin removing means operating to enable the production of a paper to paper contact between the contacting portions of the mouth of the container to be sealed.

2. In a machine of the characterdescribed, in

.provide a container having a sealing rim at the inside of the mouth thereof substantially free from paraffin, container filling means, container closing means, container sealing means, said closing and sealing means being operative to produce a complete seal across the entire mouth of the container.

3. In a machine of the character described, in combination, means for supporting a supply roll of paraflln paper, means for withdrawing paraflin paper from the supply roll, means for forming a length thereof into a container, container filling means, means operative upon the paraffin paper prior to its formation into the container for removing parafiin from the portions of the paper which are to form the upper portion of the inside of the mouth of the container, means for thereafter pressing together the two opposite walls of the mouth portion of the bag to provide a continuous paper to paper contact across the entire mouth of the container, and means for adhesively aflixing together the contacting portions 55 the entire mouth of the container.

70 5. In a machine of the character described, in combination, container forming means, means for feeding a web of paraffin coated paper to the container forming means, means for removing paraffin from the portions of the paper which 75 are to form the upper portion of the inside of the mouth portion of the container, said means including means for heating the paraflin, a movable member adapted to engage said portions of the web to convey paraiiin therefrom, and means for removing the parailin from said member, container filling'means, means for adhesively amxing together the two opposite walls of the mouth portion of the container to provide a continuous paper to paper contact across the entire mouth of the container.

6. In a machine of the character described, in combination, container forming mechanism, means for supplying a paramn coated sheet to the container forming mechanism, means for removing paraflln from the portions of the sheet which are to form the upper portion of the inside of the mouth of the container, said means including a movable absorbent member and a solvent tank for removing the absorbed paraflln from said member.

'l'-. In a machine of the character described, in combination, means for forming a container having an open end from paraflin coated paper, container filling means, means for closing said open end with a paper to paper contact including paraffln removing means operated to provide the container with an uncoated sealing rim around the interior of the mouth thereof, and

mechanism for continuously taking away the paraffin thus removed from the mouth of the container, and means for sealing the contacting portions of the mouth of the container.

8. In a machine of the character described, in combination, a conveyor provided with a plurality of container holding devices rotatably mounted thereon, folding instrumentalities for folding the flaps of a container supported by said devices, and means for eifecting the rotation of said holding devices and the containers supported thereby about the longitudinal axis of the containers to thereby present diflerent sets of flaps at the same end of the container to the operation of succeeding folding instrumentalities at different stations in the movement of said conveyor.

9. In a machine of the character described, in combination, a conveyor provided with container holding devices rotatably mounted thereon, folding instrumentalities, and means for rotating the container about its longitudinal axis to present different sets of flaps at the same end of the container to the operation of successive folding instrumentalities.

10. In a machine of the character described, a conveyor provided with a plurality of container holding devices, folding instrumentalities, and means for effecting rotation of the container about its longitudinal axis to present different sets of flaps at the same end of the container to the operation of successive folding instrumentalities.

11. In a machine of the character described, in combination, supporting and conveying means for a plurality of containers, folding instrumentalities, and means for effecting rotation of said containers about their longitudinal axes to present different sets of flaps at the same end of the container to the operation of successive folding instrumentalities.

12. In a machine of the character described, in combination, an endless conveyor provided with a plurality of spaced pockets rotatably mounted thereon for operatively supporting containers, a plurality of folding instrumentalities located at successive stations along said conveyor, means for rotating successive pockets about their longitudinal axes during movement from one set of folding instrumentalities to a succeeding set.

13. In a machine of the character described, in combination, a conveyor provided with a plurality of spaced container holding members rotatably mounted upon the conveyor, end flap folding means, side flap folding means, and means for rotating the container holding members about their longitudinal axes for the purpose specified.

14. In a machine of the character described, in combination, container supporting means, means for folding outwardly two opposed portions of an open end of the container, means for pressing together the remaining two opposite walls of said end of the container to provide a continuous contact across the entire end of the container, and

means for applying adhesive to the inner surface of said walls of the container.

15. In a'machine of the character described, in combination, container supporting means, means for folding outwardly two opposed portions of an open end of the container, means for pressing together the remaining two opposite walls of said end of the container to provide a continuous contact across the entire end of the container, means for applying adhesive to the inner surface of said walls of the container, and means for thereafter folding down the sealed portion of the mouth of the container.

16. In a machine for closing a lined carton, in combination, carton supporting means, means for folding outwardly the closed end portions of the liner, means for applying adhesive to the inner surfaces of the two opposite portions of the mouth of the liner which are to contact, means for pressing together and adhesively aflixing the two opposite portions of the mouth of the liner to provide a continuous seal across the entire mouth of the liner, means for thereafter folding down the sealed mouth portion of the liner, and means for thereafter closing and sealing the top flaps of the carton. V

17. In a machine of the character described, in combination, container forming means, paraffin removing means cooperating with the container forming means to produce a container having the parafiin removed from the inside of the mouth thereof, container filling means, container closing mechanism, and container sealing mechanism, including adhesive applying means, said closing and sealing mechanism being operative to bring together and seal the two opposite walls of the mouth of the container with a paper to paper contact.

18. In a machine of the character described, in combination, container forming means, paraffin removing means cooperating with the container forming means to produce a container having the paraffin removed from the inside of the mouth thereof, container filling means, container closing mechanism, and container sealing mechanism, said closing and sealing mechanism being operative to bring together and seal the two opposite walls of the mouth of the container with a paper to paper contact, including adhesive applying means, and means for thereafter folding down the sealed portion of the mouth of the container.

19. A machine for producing a lined carton having, in combination, means for .formlng the lining from paraflln paper, means for introducing the formed lining into'a carton, paraflln removing means cooperating to produce a liner having the paraflin removed from the insideol the mouth thereof, container .fllling means,

means for sealing together two opposite walls 01' the'mouth of the liner from which the parailln has been removed, including adhesive applying means, means for folding down the sealed portion of the liner, and means for thereafter clos- 5 ing and sealing the top flaps of the carton.

STANLEY R. HOWARD.