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Íhily- 5, 1938. s. BERGSTEIN 2,122,510 APPARATUS FOR MAKING SEALED PACKAGES Filed Oct. 8, 1935 7 Sheets-Sheet 1 July 5, 1938. s. BERGSTEIN 2,122,510 APPARATUS FOR MAKING SEALED PACKAGES Filed Oct. 8. 1935 7 Sheets-Sheet 2 INVENTOR. Sm u BEResTgm. q. ATTORNEYS; July 5, 1938. 2,122,510 s. BERGsTElN APPARATUS FOR MAKING SEALED PACKAGES Filed Oct. 8, 1935 '7 Sheets-'Sheet 3 0 ___ 5 v / a Hl.v_f.:M ä O 4mdf«dfu-wiî w:2- „ms m 7m .u d4 wm M W ß,n.5” w su u. E \ s”REÍ/4 y 6. ma s .n, .n î /l œ .l .j Ul 05. nú «0 / V 9/. BY NMwmH.- @Ei#_ MMM, ATTORNEYS. July 5, 1938. s. BERGSTEIN 2,122,510 APPARATUS FOR MAKING SEALED PACKAGES Filed 0G11. 8, j1.935 l Y ‘ 7 Sheets‘?shee‘t 4 I7 à INVENTOR. ~ «5A/waff. 55x65 Tf1/v. BY ' - M“ 4~ M ATTORNEYS. July 5', 1938. 2,122,510 S. BERGSTEIN APPARATUS FOR MAKING SEALED PACKAGES Filed Oct. 8, 1935 '7 Sheets-Sheet 5 ATTORNEYS.' v July 5, 1938. s. 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BY - . @5&1 Gf» @à ATTORNEYS. 2,122,510 Patented July 5,~ 1,938 UNITED STATES PATENT .o1-‘FICE 2,122,510 APPARATUS FOR MAKING SEALED PACKAGES Samuel Bergstein, Cincinnati, Ohio, assignor to Edna May Bergstein and Robert Morris Berg stein, as trustees Application October 8, 1935, Serial No. 44,082 12_ Claims. (Cl. .9L-»51) This invention relates to machines `for her forming the' operation i_n a rapid, neat and ef metically sealing packages subsequent to the set ficient manner and requiring a minimum of at ting up, filling and sealing of the packages in the tention by the operator. regular manner. Another object is the provision of hermetic This application relates to improved mecha sealing apparatus, with which cartons which are Cl nism for hermetically sealing ypackages in accord to receive this auxiliary hermetic sealing treat ance with the method set forth in my copending ment are carried on a conveyor belt in which ther application, Ser. No. 603,064, ~illed April 4th, apparatus for applying the hermetic sealing 1932, and is a continuation in part thereof, and treatment is more effective if the cartons are properly positioned and spaced on the conveyor, a division in so far as one type of sealing appa ratus shownl herein‘is transferred from said co pending application. and to automatic mechanism for spacing, feeding My invention relates to mechanism and appa _and positioning the cartons on the conveyor. A further object is the provision of hermetic ratus for sealing cartons after they are set up, filled and sealed as an auxiliary and supple edge-sealing mechanism having auxiliary mech anism effective on theside ofthe carton opposite mental hermetic sealing operation. Such cartons are made, filled and closed by automatic machin that on which the hermetic ,sealing medium is applied for co-operating with said first noted ery, a well known example being a carton in mechanism for insuring a proper application of which the blank is folded and secured in tubular the sealing medium. l form, with four lateral walls, each having a flap Other objects and advantages will appear from at each end, two opposite flaps being folded in, ' a description of the invention in conjunction with a third flap having adhesive applied to its lower the drawings, wherein: side'being folded in on the two flaps, and the Figure 1 is a fragmentary-perspective view of fourth flap having adhesive applied to its lower a carton showing one of the hermetically critical IO 5 side and being folded in on the third flap to form ' each end of the carton. In the ordinary method one end thus is formed, the carton is filled, and . then the other end is formed, completing the clo sure. My improved mechanism is adapted for 20 use, however, on all types of cartons, regardless of the machinery used prior to the hermetic seal ing operation. This usual method of sealing is edges. 25 Fig. 2. is a side elevation of my preferred ma chine with parts broken away and certain parts shown in section. ' y Fig. 3 is a fragmentary plan view showing the arrangement of driving mechanism. . 30 Fig. 4 is an enlarged sectional plan view taken along the line 4-4 of Fig. 2. adequate Where the ycontents are of a nature Fig. 4a is a plan view of a sealing roller. which will not result in their seeping or sifting Fig. 5 is a left endÍ` elevation with parts broken through minute openings, and where hermetic sealing is not required. It is well known to those familiar with-the art of making paper board cartons that although the paper board itself may be rendered impermeable by use of cellulose away-and certain parts shown in section. Fig. 5a is a section along the line Sa-Sa of 40 acetate or other substance, a carton made of such Fig. 5. . _ , Fig. 6 is a fragmentary section along the line 6_6 of Fig. 2. Fig. 7 is a fragmentary perspective view of a 40 material is itself not impermeable nor air-tight. carton passing through my machine. This is because of the ever .present difficulty of sealing the end flaps without crevices and' pin holes which communicate with the interior of Fig. 8 is a sectional view taken through’ one of the arms of my device for inverting the cartons. Fig. 9 is an enlarged fragmentary section of a . `the carton and render it unfit for use as a con tainer for many substances, such as foods, etc., wherein deterioration of quality or flavor resultsfrom exposure to air. ~ It is therefore an object of> my invention to pro vide mechanism for applying a coating or film of sealing medium to the hermetically critical por tions of the carton, usually the corners of the sealed end flaps. A further object is to provide means whereby this sealing of the cartons may 55 be accomplished by automatic apparatus, per . carton towhich the sealing medium has been applied. 45 Fig.. 10 is a side elevation of a modified form of my apparatus. Fig. 11 is a section along the line II-II of Fig. 10. . ' 50 Fig. 12 is a section along the line I2-|2 of Fig. 10 and, ' Fig. 13 is a perspective view of apparatus'for applying the sealing medium. Referring to Figs. 2 and 4, my preferred ma 55 2,122,510 Y2 ychine consists essentially of a feeding or loading device generally indicated by the ?umeral I, for bearing bracket 33, and having lever arm 34 feeding the cartons in timed relation to an upper conveyor indicated at 2, a turn-over or inverting stood that movement of lever arm 34 will result in rotation’ of the shafts 2li> and 2l with the'gates device 3 for linverting and placing the' cartons 23 and their outward'extending arms 24. y on a lower conveyor 4, and a series of rollers ad Clamped to the vertical shaft 35, a pair o collars 35a carry arms or fingers 36, having jacent the conveyors for applying the sealing medium, said rollers being indicated at 5a, 5b, 5c, and 5d, in the sequence in which they perform their respective function upon a- carton. A1 though not an essential part of my invention, I, have shown a third or take-off conveyor generally indicated at 6 for receiving the finished cartons and carrying them to a packing table or store room. `These devices, together with suitable sup porting means and driving mechanism by which they `are operated in coordinated relationship, comprise my preferred form of machine as shown in Figs. 2 to 8, inclusive. 20 Feeding mechanism . Asseen in Figs. 4 and 5,- the feeding device has ' a pair of continuously running belts 8 and 9v ar ranged, to receive >cartons from a 4conveyor or. 25 other source 1. _ The lower belt 8 is driyen from pulley 8a, fixed to shaft I0, which has journaled bearings in a pair of side plates I2 and I2a, and and has fixed at its outer end a driven gear II. fastened at its upper end. It will be thusl under i Cl curved end portions 36a. The shaft 35 is jour naled in bearing brackets 31 and 31a and has Afixed at its upper end a‘spu'r gear 38 -meshing 10 with gear 38a.l fixed to' shaft 39, which is journaled in bearing bracket 31a and has at its upper end ‘ a miter gearï40 meshing with miter gearl 40a, fixed toshaft I5. ' The feed mechanism is driven from a miter. gear 4I fixed to shaft 53, which itself is' driven, as ‘will be described, in conjunction with the upper conveyor. The gear 4I drives miter gear 4Ia, which rotates fixcdly withfspur gear 4Ibjon stud 4Ic and drives the smaller gear 42 mount 20 ed on stud 42a. Fixedly rotating with the gear 42, sprocket 43 carries chain- 43a runningfover upper sprocket I1, thus driving shaft` I5, pulley 9a, belt 9 and the fingers 36 through the gear train described therewith. -Also driven by the 25 gear_42, is the gear II on shaft I0, which has' pulley 8a to’drive belt 8. Referring to Fig. 4, the cartons entering the de Belt 8 also runs over adjustable idler pulleys 8b,r vice between belts 8 and 8 will be retarded by the . 30 which as seen in Fig. 5a, are rotatably mounted ` gates 23, and as the upper belt 9 is not arranged 30 on sleeves I3 held between the side plates I2 and to definitely-` contact the-cartons at this po'int I2a by bolts I3a and nuts I3b, said bolts extend they will rest upon belt 8 which will continue t0 ` ing through adjustment slots I 2b of the side plates. The side plates have portions I2c, which 35 extend above the surface ofthe belt 8_forming a guideway for the cartons. Also aflixed to the side plates a pair of rails I4 and I4a extend beyond the limits of belt 8 to support the cartons during vtheir travel from source 1 onto belt 8 and from» v40 belt 8 onto upper conveyor 2. The side plate I2 is supported by bolting to the fian’ge 52b extend ing from the upright frame member A52. Side lplate I2a is supported by bolting 'to upright member 14. Suitable spacing members or blocks .45 I2d may be interposed between'the side plates ' for holding them in rigid fixed relation. travel or slide beneath them in readiness to carry the cartons forward when the gates are opened. When one of the studs 44, carried by the upper 35 conveyor 2, contact lever arm 34, it is carried to the right to eñect movement of the gates 23 and arms 24_ which are arranged to travel throughan arc of approximately 90 degrees. IIfhus the gatës 23 _will be at right angles to the position shown, and-will permit passage of the'ñrst awaiting car- _ ton. The second awaiting lcarton is not per mitted to pass because óf the action of arms 24 which revolve with the gates and grasp the said carton tightly between the pads 24a to arrest its 45 movement along the belt. A tension spring 45 is arranged to _return the gates- to the position Fixed to shaft I5 pulley 9a drives the upper ï belt 9 running over idler pulleys 9b. The shaft , shown after ther >'studs 44 have released lever arm , I5 is journaled in side plates I6 and I6a, and has 34. 'With this arrangement, one carton will be a. driven sprocket I1 :fixed at one end. Plates I6 released with- each operation of ‘the gates, and _ . and I6a are supported by members I8 and I8a, each carton will be in timed relation with belts which extend from the lower plates I2 and I2a. Brand 9`for proper entry »upon the conveyor 2. Plate I6 is also vsupported atits inner end by the The fingers 36 rotate in counter-clockwise di member I9, while plate I6 is given additional -rection and in timed relation with conveyor 2 55 support by bolting to the upright frame member for insuring proper loading of the cartons there 114. Slots I6b permit adjustment of the pulleys on. If for any reason a carton‘is late in its .ì f 9b, which are mounted in the manner already travel along the, belts 8 and 9, it will be con described in conjunction with pulleys 8b. tacted by the portion 36a of the fingers, which, Vertical shafts 20 and 2|, arranged "on oppo .beingpositively driven, will advance the ~carton " site sides ofthe belts 8 and 9, are journaled in suñicient to correct -the inaccuracy of timing. 60 pairs `of bearingibrackets 28a and 2Ia, respe'c The fingers also serve to assist the cartons com tively, and are held in position therein by collars pletely onto the conveyor. , .1 22. -A pair. of fingers or gates 23, extending in , Upper conveyor wardly across the path of .the cartons, are iixed tothe shafts 20 and 2`I and carry outward extend ing arms 24 with pads 24a. of resilient material attachedattheir outer ends. Fixed to the lower 'end of shaft 20, lever’. arm 25 is -operably con nected by link 26 to a similar lever arm 21 ñxed to shaft 2|. Also ñxed to shaft 2I,-I pinion gearv 28 meshes with- a rack 29 arranged to reciprocate ` in suitable guiding means 29a. The rack 29 is attached to a twisted bar 30, which, in turn, is ' pivotally connected vtoa lever arm 3| fastened to the lower end of a short shaft 32 journaled 'in Referring to-Figs. 2 and 4, a front frame mem ber 5I! and rear frame member 58a are held in , fixed relation by tran sverse members 50h'. Se îcured at the left end of the frame members a - front upright 5I and rear upright‘52have bear ings5la and Ll2a, respectively, lin which the shaft 53 is journaled. Upright .members 54 and 55 to the right have bearings 54a and 55a, in which a shaft 56 is journaled. Fixedly rotating with shaft 56, sprocket 51 car ries the upper conveyor chain 58, whichgruns 76 3 2,122,510 over a left-hand sprocket 59 fixed» on shaft 53. 93 of resilient material such as soft rubber are As best seen in Fig. 6, the chain 58 isof the type having at desired intervals special side fastened to the plates. Springs 94, fastened to the wheels by screws 94a, tend to hold the arms 90 in their extreme outward position, which is limited by pins 88a mounted in the spurs 88. Referring to Figs. 2 and 4, a pair of cam plates or tracks 95 and 96, approximately semi-circular in shape and supported by studs 91, from the up plates formed with extending lugs or ears 58a, to which are fastened by screws or bolts a series of flat rectangular conveyor plates 60, having a portion of their outer edges milled away to form tongues 60a. To each alternate conveyor plate, I> provide two upright pieces 6|, and on the underside of these same lalternate plates, a stud 44 projects downwardly to effect timed operation of the feed mechanism as already described.> During its travel between left-hand sprocket 59 and right-hand sprocket 51, the conveyor as 15 sembly is carried in alignment by side guides 62 and 63, which arel of channel-shaped cross sec tion, and provide sliding ñt for the tongues 60a of the conveyor plates. As shown in Fig. 6, the guides 62 and 63 may be supported by attaching 20 with screws 64 to suitable supports 65, -which rights 54 and 55, are adapted to engage the cam rollers 9|, moving and holding the arms 90 in 10. _ward during the engagement of the rollers with the faces 95a Íand 96a of the cam tracks. Thus with the rotation of shaft 56, the arms 90 are moved in and out so as to grasp the cartons rid ing on the upper conveyor and carry them in a 15 semi-circular path. The arms are then released by the cam plates -and the cartons are free to travel in a relatively inverted position on the lower conveyor 4. are held by screws 65a to transverse bars or beams 66, these beams having at their outer` ends clamping ,means 66a for fastening to the frame -members or rails 61 and 68. 25 _ , ` The chief function of this upper conveyor is to transport the cartons past the rollers 5a and 5b which, as later described, apply my sealing medium to the two lower edges a and b, as seen in Fig. 5. While traveling on thisconvey'or, the 30 cartons rest upon the platesl 60 and are carried forward by the uprights 6|. Also, the conveyor assemblyis somewhat narrower than the width of the cartons so as to provide necessary clear 'ance for the sealing rollers. Side guides 69 and -10 are provided for guiding the cartons in alignment with the conveyor and sealing rolls, and as seen in Fig. 6, these guides are supported from the bent rods 69a and 10a depending from transverse" bars 1|, which have 4.0 Y Secured to the lower ends of uprights 54 and 55, bearing blocks |00 and |0| have journaled therein shaft |02, to which is ñxed a sprocket |03 carrying chain |04, said chain being of the 25 block type, and having aflìxed at desired intervals upstanding pins or studs |05. Bearing blocks |06 and |01, mounted on left-hand uprights 5| and 52, have journaled therein shaft |08 upon' which sprocket |09 is fixed for. driving chain |04; 30 As seen in Fig. 5, the shaft |08 has fixed at its right end a gear ||0, driven by gear |||, ñxed With sprocket | I2 to rotate on a stud ||3 secured in bearing block |06. The sprocket. I I2 is driven by chain ||4, running over a larger sprocket ||5 35 fixed to shaft 53, which itself is driven as pre viously explained. , In its travel from right-hand sprocket |03 to left-hand sprocket lus, the chain |04 is hem in alignment by a channel or guide ||6, which 40 at their outer ends clamping means 1|a for se curing to longitudinal frame members 12 and 13. may be supported in any convenient manner, Member 12 is fastened at its .left end- by screws as by brackets- orbeams || 1, which span the to the upper end 5|b of the upright 5|; at its frame members 50 and 50a and are secured there right end it is fastened to a similar extension (not to at their outer ends. . Referring to Figs. 2 and 5, the studs |05 shown) of the upright 54. Member 13 is attached at its right end by screws to upperfend 55h of of chain |04 are adapted to engage the cartons upright 55 and at its left end to the upright 14. _ and carry them to the left, past sealing rollers 5c An adjustable pressure bar 15 is arranged to and 5d, which seal the edges cand d of the car bear Vagainst _the tops of the cartons and prevent tons. While traveling on this lower conveyor, the cartons are also assisted by the members 6| of vertical displacement when they contact the seal the upper conveyor,- said members extending ing rollers 5 and 5a. ~ ' downward through this portion of their travel. For driving this upper conveyor a sprocket `16 Side guide rails ||8 and ||9 are provided for the is fixed to shaft 56 and carries chain 16a, run cartons and chain 58, with the plates 60 of the ning over small sprocket 11 mounted on counter upper conveyor serving as a top pressure member shaft 18. Countershaft 18 is journaled in mul tiple bearing brackets 19 and 80, and has a ñxed to prevent vertical displacement of the cartons bevel gear 18a, from'which it is driven by motor as'they contact the sealing rollers 5c and 5d. 8|, acting through reduction unit 82, gears 82a and 83, shaft 83a and miter gear 84. 60 ~ Lower conveyor Movement of the conveyor chain 58 causes ro tation of left-handv sprocket 59 and shaft 53 which, as already described, has fixed thereon bevel gear 4| for driving the feed mechanism. Inverting mechanism Fixedly rotating with the shaft 56,' wheels 86 and 81 have spurs 88 arranged in pairs as] shown in Fig. 2. Extending through each pair of they spurs, pins 89 provide pivoted bearings for the 70 arms 90. Referring to Fig. 8, the arms are o1' round stock upon which cam rollers 9| -are ro tatably mounted between collars 9 | a fixed by pins 9|b. The arms have fiattened end portions 90a and 90b. Plates 92, having lugs 92a, are clamped 75 by bolts 92h to the ends- 90b of the arms. Pads . Take-01T conveyor As seen in Fig. 2, the completely sealed. car 60 tons> leave the machine at the left end of the lower conveyor. Here they may be received by a third or take-off conveyor to carry them to a packing table or other desired 1ocation.‘ The take-off conveyorv chain |25, having up 65 rights |26, is driven by sprocket |21, ñxed on shaft |28, which is journaled in a pair of brackets or arms |29 extending from the frame members 50 and 50a. Fixed to shaft |28, a gear |30 meshes with gear |3|, which, in turn, is ñxéd to a stub 70 shaft |32, having at its outer end a sprocket |33 carrying chain |34, which is driven from a larger sprocket |35. As best seen in Fig. 5, the sprocket |35 is fixed to shaft 53, the driving means for which has been previously described. 75 4 2,122,510 During their travel from the lower conveyor :Sealing rollers and appurtenances thereof As before stated, the hermetically critical por |65 and |86 of a reservoir or tank |51, which contains the sealing medium S and is mounted on the' members 66 already described. A doctor blade |68, having extended-end portions |68a and an lupturned lin-§68 with slot |69a, is held in de sired relation to the- roller by screws |10. Slots |1|, through which the screws extend, alle-W adjustment of the doctor blade by means of the tions of a carton are at the-edges of the over thumb screw |12 arranged as shown to enter >lapped end flaps. Referring to Fig. l, the `critical the fixedl nut |13. A spout |14 is provided ‘for yfilling the tank. onto the take-ofi’ conveyor, the cartons ride or slide- upon a pair of rails |36, being carried along by the members 6| of the upper conveyor as sembly. 10 ' ' ‘ v ` edge a is forme-:i by three end flaps e, f and .g continuous, respectively, with side walis E, F, and G. ' ` ‘ I prefer to rotate the sealing rollers at a speed nearly sufficient to throw the sealing medium therefrom by the centrifugal force developed. -Also,ïmy'sea1ing medium is of relatively extra heavy consistency. Thus> when I bring one ci' the critical edges of a carton into contact with = the surface of a roller, the sealing medium there 10 Tank |61 has an outwardly turned lip |61a, in which a Wiper blade |15 of fiat-spring material is mounted and arranged to Wipe surplus sealing medium `from the bottom ofthe cartons. A sim 15 ilar .pair of blades |16 are fixed on the piece i11 for -wiping the side of the cartons. - The blades |15 and |16 comprise the primary wiping means |52 before mentioned, and material here scraped from the cartons runs back into the tank. Ex 20 on is, in addition to being wiped from the roller, actually pushed and forced by its own momentum into whatever crevices or pin holes the carton tending from' the tank a braeket |18 has an up standing member or post.|19 from which addi tional scraper blades |80 and |8| are mounted may present. As seen in'Fig. '1, the critical edge a_ to form the secondary wiping means |53 before 25 is in contact with sealing roller 5a so that sealing mentioned. Material here scraped from the car medium thereon is' transferred to the carton tons may be'reclaimed by use of v`drip pans not and forced into the crevices as shown in Fig. 9. shown in the drawings.` ' Here the adhesive used inthe primary sealing The guard |5| has blade |83 of iight spring of the end ilaps is indicated at'P and my second f material bent as at |83a and fastened by rivets ary or auxiliary sealing medium is shown at S |83b -to the angle bar |84, said angle bar being 30 entering and sealing the crevice a', which, if >not lthreaded to receive screws |84a .by which »it is closed, may permit leakage communicating adjustably ñxed in slots |8511l of the angle bar vwith other lcrevices which, in turn, lead to the in terior of the carton. 35 - vIn> conjunction with I each sealing roller, an adjustable spring pessure device generally indi cated at |50 is provided to bear against the car ton and insure positive contact thereof with the sealing roller. Also a guard or shield (best se'en in Figs. `6 and 7) is arrangedto bear against the carton and prevent the sealing medium from creeping or being forced unnecessarily high there on. A group of ilat spring members indicated at . |52 are employed to contact the sealed edge of 45 the passing carton and `wipe any surplus of seal ing medium therefrom. Similar means |53, may also be utilized for secondary wiping so that any remaining surplus is completely removed to assist rapid drying of the sealed edge. Referring to Figs. 3 and 4, the countershaft/ 18 already described, has fixed thereon miter gears 18a and 18h, driving gears i 55 and |56, respec ` tively. Gear |55 is fixed to shaft |51, which is journaled in the multiple bearing bracket 19,` and other bearing brackets i51a and |51b ?xed to the upright frame members 55 and 52, re speetively. Fixed to shaft |51, the large sprocket |58a drives chain |59a running overanupper and smaller sprocket |60a iixed‘rvith sealing roller 5a on its shaft ‘|6Ia. Also ñxedto shaft |51,sprocket |58d carries chain |58d running over -lower sprocket |60d fixed with sealing roller 5d on Ashaft |6|d. Driven by miter gear 18e on counter shaft 18,- the miter gear |56 is fixed to shaft |62, 65 which is journaled in the multiple bearing brack et 30 and other bearing brackets |624 and |6211 fixed to upright frame members 5e4 and 5|, re spectively. Shaft |62 has iixed thereon sprocket `|5017, with chain |591» for driving sprocket |60b |85. Angle bar |85 also has adjusting slots |85b, . through which screws |850 extend to clamp the assembly to the -carton guide rail 10. 35 ri-‘he springvpressure means |50 consists of a series of 4fiat springs |86 riveted to a member |81, `having an angular bent lug | 81a threaded to re- v vceive screws |811), said screws being adjustably ñxed to bracket |88 by means of slots |880. The 40 bracket |88 may be mounted by screws |882) to carton guide rail 69. i The appurtenances of the sealing roller 5a asv above described are substantially duplicated in conjunction with the sealing rollers 5b, 5c and 5d, 45 and lt will be understood that iike> numerals throughout the drawings refer to like parts of the adjacent sealing roller. e The apparatus of Figs. i0 to 13, inclusive, as shown in' application, Ser. No. 603,064, of which this application is a continuation in part, com prises a table 20| _with legs 20|a, having on its top transversely laligned bearings 202 near re- . spective ends, for shafts 203 >and 204, each having « fixed on it a pair of transversely spaced sprocket 55 wheels 205. Shaft 203 extends past its rear bear ing 202 with a» large grooved pulley 206 and a small grooved pulley 201 fixed `on its extension; the latter pulley 201 having a belt 208 through which the machine ls driven from a >suitable source of power, not shown. The table has a slot 20|b for these pulleys 206 and 201 and belt 208, and has slots 20|c for the sprocket wheels 205; The other shaft 204 extends to the rear of its rear bearing 202 and has fixed on its extension 65 the bevel gear 208, for which the table has a, slot 20|d. ‘ l . ' Sprocket >chains 2|. nm on the wheels 205, each having aseries of lugs 2| |, _and a bed bar fixed on shaft |6|îo with sealing/roller 5b. The 2|2 lies between the wheels 205 and between the 70 sealing roller 5c is driven in like manner by ` chains 2i 0 and extends past them at both ends; sprocket i58c. and chain ‘ |59c running over being -fixed to a bottom plate 2|3 by screws 2M. ' sprocket |50c. Qhannels 2| 5 also are screwed to this piate 2| 3 Referring to Figs. 4a_ and 6, the sealing roller to guide the chains 2|0. The bottom plate 2| 3 76 5a ls -fixed on shaft |6|a journaled in end walls has legs 2|6..extending down, with vertical slots 75 2,122,510 5 2| 1; and brackets 2|8 extend up from the table 20|l With- studs 2|9 through the respective leg of the disk, and having its outer end part bent 2|0. The left hand shaft 230 has ñxed on it a grooved pulley 233, and a belt 234 runs around of material carried up on the disk 243. Where the foot extensions 238a of the reservoirs are 30 screwed to the table, they have front to rear slots up and straddling an adjusting screw 253 between slots 2|1 and having nuts _220 so that the plate collars 254 fixed on the screw, the screw being 2|3 may be adjusted vertically at either end by 4threaded through the ear 24| on the reservoir set screws 22| passing up through the table 20| rim. On the left side of the top of each reservoir against the bottoms of the plate legs 2|6 and hav 238 is .screwed a horizontal plate 255 extending - ing lockriuts 222. in over the spout extension 239 and having ñxed Back guides 223 are supported on posts 224to on its inner end two scrapers 256 and 251, extend ' - extend along to the rear of the chains 2|0; the ing in past the inner end of the plate 255 past 10 posts 224 having lower extensions under the bed the periphery of the disk 243. A third scraper bar 2|2, to which they are secured by screws 225. 258 is fixed in the left or outer end of the spout Y These back guides 223 extend the full length of extension` 239 and extends up therefrom and in the machine. The front guides 226 are simi ward past the ends of the other two Scrapers 256 larly mounted by posts 221 secured to the bed bar and 251. The latter incline to the left, in the di 15 2|2 by screws 228; these front guides 226 ex rection of conveyance of the cartons, and the 15 tending from the left end of the' machine in left hand one, 251, is vnarrower and does not front of the chains 2|0 and terminating near project up as far as the right hand one 256. the right hand sprocket wheels 205, leaving a These two Scrapers 256 andl 251 are ordinarily space for placing the cartons onto the bed bar required because the closure flaps are often slight 20, 2|2 in the paths ofthe chain lugs 2| |, to be pulled ly inclined from parallelism with the walls of the 20 between the guides 223 and 226 in proper align carton. If there was only one scraper it might ment. be held` away from the end wall by the edge of Four standards 229 are fixed to the table |, two the closure iiap so an extra scraper spaced slight at its rear and two at its front edge, in two pairs ly above the edge of the closure flap is ordi aligned from front to rear, each pair having narily required. A third scraper 758 scrapes the 25 journaled in it'a shaft 230 and each shaft 230 bottom of the container. Material scraped from having fixed on it a drum 23 |. The pressure belt the carton runs back into the spout extension 239. 232 runs around these drums 23| over the chains 'I‘he blade 252 is adjusted to control the amount this pulley 233 and around theY large pulley 206_ that is fixed on the sprocket wheel shaft 203 as before described. Each standard 229 has piv oted on it below the shaft 30 a pressure arm 235; 35 each pair of arms 235 journaling a pressure roll er 235 which is pulled down against the lower 50 55 60 ` ` 2|0. 'I'his permits each disk 243, carried by the reservoir, to be set so that its periphery passes 35 very close to the path of travel of the respective lateral bottom edge of the carton, as carried by the chains 2|0 along the bed bar 2I2 by engage down to a lower part of the respective standard ment of the chain lugs 2| l, and as held down by. 229. With the chains 2|0 and bed bar 2|2 ad the pressure belt 232, as before described. 40 justed to proper height by the means above de Operating in this manner, the part of the lat scribed, thepressure belt 232 holds. the cartons eral side of the carton A scrapes from the pe firmly thereon. riphery‘of the disk 243 a portion of the material Midway between the two pairs of sprocket B carried thereby, first taking some of this ma wheels 205, reservoirs 238 are fixed to the table terial B onto the advanced side of the corner a 45 20| by foot extensions 238a, one reservoir at the at the meeting of the bottom b, transverse side c front and the other at the rear ‘of the chains 2|0. and lateral side d. This material also covers the Each reservoir 238 has a spout-like extension 239 edge e of the joints between the carton flaps, and on its left side next to its top, and on its side the ñnal portion scraped from the disk 243 pro next to the chain 2|0 has a boss 240 next to its trudes slightly past the opposite corner f at the 50 bottom, and on its outer side, away from ther meeting of the bottom b, opposite transverse side chains 2|0, has an ear 24| extending up from its g and the lateral side d; The Scrapers 256 and top, below which, in its wall, is a horizontal slot 258 scrape all but a thin coating of the material 242. In each reservoir 238 a. disk 243 is fixed on a from the bottom b and side d,_res'pectively, and, shaft 244 journaled transversely in the left and the narrower intermediate scraper 251 bears its 55 right hand walls of the reservoir and extending upper corner to the carton corner a, then along out to the> right and having fixed on it a spur the joint edge e, and finally springs inward past gear 245 meshing with a spur gear 24B turning the following corner f. It thus distributes the on a stud 241 in the respective boss 240. These material around the corners a and f, and the latter gears 246 of the two reservoirs mesh to protrusion of the material into the small openings 60 gether as clearly seen in Fig. 11, so that the two at these corners, before mentioned, is insured disks 243 are operatively connected for rotation- by the pressure of the scraper 251,' which ,also of each disk over toward the chains 2|0. At the better scrapes the slight yrecess along the joint rear, a spur pinion 248 meshes with the disk gear edge e to remove material that might have gath 245 and is fixed on a shaft 24.9 journaled inI bear ered therein to come therefrom after the carton 65 ings 250 ñxed on the table 20|. Fixed on the has left the Scrapers. It will be seen that the two other end of the shaft 249 is the bevel pinion 25|y reservoir devices thus operate on the two lower in mesh with the bevel gear 209 -of the -right hand lateral edge parts of a carton simultaneously, sprocket wheel shaft 204, and before mentioned, completing the final sealing of that end of the which, driven by the chains 2|0 from the left carton as it is carried along. 70 hand shaft 203, drives thev disks 243 in the proper This operation may be upon the bottom of an directions as above explained. open-topped carton either before or after the - For each disk 243 a scraper blade .252 extends carton has received its contents; or the carton in through the reservoir wall slot 242, being may have been filled and hadr its top also closed forked at its inner end to straddle the periphery before coming to my apparatus. After this oper 75 stretch of the pressure belt 232 by springs 231, one of which is stretched from each arm 235 45 2381) for the screws, so that each reservoir 238 - may be adjusted toward or away from the chains je 2,122,510 ation upon one end, therefore, it passes to the left hand end of the bed bar v2|2, from which it may pass- to the ñlling device if it was empty, or means _for diverting the application of the said medium substantially to the corners and edges of said closure ñaps. if ñlled but not closed, to the closing device which- A ' 6. A machine for use in combination with a folds ~and secures the top ñaps.' If-passed to a machine provided with means for folding flexible filler, it then passes to the top closing device. In Í parts of .cartons wherein crevices are formed ad _ either case, after its top- is closed and adhesively jacent to said ufolded parts comprising 4a con tinuously operative carton conveyor, and me secured by such device, the carton may be re 1 \`turned to my device, inverted,- and thereupon chanical means ofor forcing plugging and sealing medium into the crevices at the lower corner 10 have this other -end subjected to the above’ de scribed operations according to my method; or edges thereof _during the continuous conveying another set of my apparatus may be arranged to of said cartons, said means comprising a supply receive the inverted carton from the final closing reservoir for said medium., and means for forc vdevice-to repeat the operations on this other end. ingsaid medium therefrom into the crevices of If the carton is to be completely closed and her -said folded parts, comprising an adhesive feeding metically sealed for filling by an air exclusion roller mounted on an axis which extends sub `process as- before referred to, it has both of its stantially parallel with the plane of movement ends subjected to my process in the manner of said conveyor. 7.-A machine for _use in combination with a described, upon coming'from the device that lcloses`its two ends. The material B used from machine provided with means for folding' flexible the reservoirs 238 may be like that with which the parts of cartons wherein crevices are formed ad paper board of the carton is coated, but of course jacent to -said folded parts comprising a con this is not essential, as any of the usual adhesives tinuously loperative carton conveyor, 'and me used in securing the flaps maybe used. l chanical means for ‘forcing plugging and sealing 25 Various other examples Íof apparatus suitable medium into the crevices at the lower corner 10 15 . 20 25 for carrying out'my method might be shown, andv -edges thereof during the continuous conveying it is to be understood that I am not limited to the examples shown, but`what I claim as new and desire to secure by Letters Patent, is:-‘ 1. Apparatus for sealing cartons comprising a sealing fluid vliquid supply'holder, a disc rotating in said holder to carry fluid on its periphery out of said holder, and a conveyor movable in a plane » . parallel with. the axis of said disc for carrying of said cartons, said means comprising a supply ‘ reservoir for said medium, means for forcing said „medium therefrom into the crevices of said folded parts, and means for shielding said medium from 30 uncreviced portions of said cartons. _ 8. A machine for use in combination with a machine provided with means for folding flexible parts of'cartons wherein crevices are formed ad 35 cartons past said disc withtheir lower corners . jacent to said folded parts comprising a con sufliciently close to said’periphery to receive a tinuously operative carton lconveyor, mechanical , means for forcing plugging and sealing medium portion -of the sealing fluid therefrom. »2. Apparatus lfor sealing cartons comprising> into the crevices at'the lower corner edges there- _ of during the continuous conveying of said car tons, said means comprising a coating roller 40 corner of eachcarton passes in contact with a mounted onan axis which extends parallel to the plane of4 movement' of said conveyorl and portion 'of the fluid, scrapers independently mov able-and in the paths of the respectivel surfaces' means for applying pressure to said cartonsv of -the carton adjacent to- said corner, :and -'a counter to the direction in which the said 45 third scraper movable independently of the other medium is forced into the crevices. _ 9. A machine for use in combinationwith a ,two scrapers and in the path of said corner. 3. A machine .for hermetically`sea1ing crevices machine provided with means for folding flexible in closed cartons- occurringy along the 'meeting parts of cartons wherein crevices are formed ad jacent to said folded“"parts«’comprising a con edges of closure flaps of said_cartons, which com Prisesymeans for moving cartons in a direction tinuously operative carton conveyor, and me 50 parallel with the edges thereof, and mechanical chanical lmeans for forcing plugging and sealing means for >forcing _a sealing medium crosswise of medium into the crevices during the continuous conveying of ‘said cartons, said means compris said edges into said crevices during the move ing a supply reservoir for said medium, means ment thereof, and means for restricting the forc ing of lthe sealing medium exclusively.to 'said for forcing said medium therefrom into the 55 crevices of said folded parts, means for shield-l a holder forsealing fluid, a conveyor for carrying 40 cartons with respect to. said holder so that a 45 _ » . '50 55 edges. » ' _ ` v-i. A.v machine for hermetically sealing crevices' ing said medium from uncreviced portions of said edgesof .closure naps of said cartons, which com ao prises means’for moving cartons in a direction _parallel with the edges thereof, and mechanical applications of the plugging and sealing adhesive. ' .in closed cartons occurringalong the meeting cartons, and means 1 for l» wiping off excessive " means _for forcing a sealing medium crosswise of vsaid- edges into said_crevices during the move I ment thereof, means for Arestricting the forcing 65 of ‘the sealing medium.- exclusively to said edges, and means for exerting pressure against the sides of the cartons opposite to the edges having the crevices into which the adhesive is forced. i 5. A machine forhermetically sealing cartons inA which ‘crevices are developed along the .edges and 'corners incident to the sealing of closure naps of said cartons comprising a conveyor for continuously 4moving cartons, mechanical means >-for applying plugging and sealing medium into the crevices during the movement thereof. and 10. A machine for use in combination with a 60 machine provided with ~means for folding flexible parts ofcartons wherein crevices are formed ad c jacent to said folded parts, comprising me chanical means for forcing sealing and plugging medium into the crevices incident to successive 65 l'conveying movement of cartons one after _ an other, and means for shielding said medium from Auncreviced portions of said cartons. 1l. A machine for use in combination with a carton conveying machine provided with means lfor foldingl ñexible parts of cartons during the conveying movement wherein crevices ar'e formed adjacent tol said folded parts, comprising mechan ical means for forcing sealing and plugging medi um at right angles to their direction of movement 2,129,510 into the crevices at the lower corner edges thereof incident to successive conveying movement of cartons one after another, and means for apply ing pressure to said cartons counter to the direc tion in which the said medium is forced into the crevices. i . ‘ 12. A machine for use in combination with a machine provided with means for folding flexible parts of cartons wherein crevices are formed ad 7 jacent to saidy folded parts, comprising me chanical means for forcing sealing and plugging medium into the crevices incident to successive conveying movement of cartons one after an other, means for shielding said medium from un creviced portions of said cartons, and means for wiping off excessive applications of the plug-` ging and sealing medium.. u K SAMUEL BERGSTEIN.