US1857680A - Packaging machine - Google Patents

Description

y 932- E. VAN DER PYL ET AL 7, 80

PACKAGING MACHINE Filed Oct. 9. 1928 6 Sheets-Sheet l SrnnoM-a Incas-@202.- Edzvard Van-428F129], Bobez'ili Sfvmpson May 10, 1932. E. VAN DER PYL ET AL PACKAGING MACH I NE May 10, 1932- E. VAN DER PYL ET AL PACKAGING MACHINE Filed Oct. 9, 1928 6 Sheets-Sheet 65 mama rd 1162' l RainerZHfiZaJmflsqW May 10, 1932- E. VAN DER PYL ET AL PACKAGING MACHINE Filed Oct 9, 1928 6 Sheets-Sheet Invefi/Zors Edward Van dez'l 11/0 Ze riII Z a/176,156

y 1932- E. VAN DER PYL ETAL 1,357,630

PACKAGING MACHINE Filed Oct. 9, 1928 6 Sheets-Sheet 5 Iii beni/ors Edwaz'd Vizn derP yZ, RoireviHSialm n,

y 1932- E. VAN DER F'YL ET AL 1,857,630

PACKAGING MACHINE Filed Oct. 9, 1928 6 Sheets-Sheet 6 Inv eni'ors dwaz-d Vzn dez'l Z,

Patented May 10, 1932 UNITED STATES EDWARD VAN mm PYL, OF WILTON, m 303E311 H. STIKPSON, O1 HASHUA, NEW HAMPSHIRE, ASBIGNOBS, BY MESNE ABSIWS, 1'0 FREDERICK L. Y, 03'

BOSTON, MASSACHUSETTS PACKAGING mcnnm This invention relates to machines for packaging shredded or powdered material or even small pieces of material in cartons, and it aims to provide not only means for a closing the carton end by foldingthe flaps constituting the end, but aims especially to provide improved and novel luing means for applying glue to the individual flaps. Obviously, however, its use is not restricted to the handling of the above recited or any both the major and minor walls which are adapted to be folded,' orglued and folded,

inwardly and in overlying relation to close the carton end. Cartons as above described and fashioned, are usually provided for the claimed. but withblft user in collapsed condition with the edges overlapped and ready to be opened, and temporarily hold in proper position preparatory to being filled and having the major and minor wall flaps g u'ed and infolded at one or both ends. v

Our novel carton flapjgluing mechanism which is the principal subject of the present application may heiisedwith difierent carton forming and fiap ifnfolding mechanisms, but is particularlyndapted for use in conncction with mechanism such as is shown in a (Io-pending applicati f fof applicant, Robert H. StimpsonfSerial No. 275,439, and wherein the flap raiding mechanism shown and described hereih isi'" also described and ference toany particular glningmeiih Hence, the description and illustrat' fffthe flap folding means above referred to herein will be primarily for the 'pu'r "ose of describing its use in connectionhnd in; combination with our imp rovcd gluing mech anism.

In the drawings of the e mbodiment of our invention shown and' described herein, and showing somuh of a packaging machine as is necessary fbr that purpose.

Fig. 1 is a partial side elevation illustrating some of the various steps of the flap folding process;

Fig. 2 a plan of the same portions generally of the machine;

Figs. 3 to 8 inclusive illustrate more in detail the flap folding steps and the flap folding instrumentalities for efiecting them;

Fig. 9, a side elevation of the gluing mechanism from the right, Fig. 2;

Fig. 10, a similar view of the opposite side of the gluing mechanism;

Fig. 11, a plan of the same;

Fig. 12, a vertical section on the line 12-12, Fig. 11, looking up; and

Fig. 13, a side elevation of means for pressing the glued flaps in position and'as sisting in the effecting of the gluing operation.

Cartons as described above are commonly contained in a suitable magazine and are fed automatically as desired to opening elements therefor which, by a swinging action separate the overlying layers of the carton in its collapsed condition, one from the other, and hold it so opened temporarily until suitable means engages the top edge of one of the side walls of the opened carton and forces it downwardly, Fig. 1, between two arms 1, 2, of a carton receiving carrier 3 on an endless chain, or other suitable member, not

shown, and which travels on a track 4 on the 1 bed plate or base 5 of the machine. In Fig. 1, the carton 6 is shown as having been so deposited, the opening blades and carton positioning member for properly positioning it in the arms 1, 2, not being shown.

For convenience, the intermittent stops of the carrier with the carton at which various functions are performed are referred to as stations.

The carton 6 is shown, Fig. 1, delivered at station I, as stated, opened, and with the front and rear major flaps 8, 9 and minor flap 10, extended. a portion of the major flap 8 herein being broken away to show the opposite major flap 9 in the rear. These are the lower flaps.

In the act of delivering or positioning the carton downwardly to the carrier at station I, see Fig. 1, the leading edge of the minor flap 11 contacts with an inclined plate 12 on the bed late 1 and this plate 12 acts to turn inwar y or fold the fla 11, the oppo- 5 site flap dropping natur y downwardly between the en of plate 12 and the upwardly extended portion of a rod or plate 13. As the carton moves to the left, Fig. 1, toward station II, flap 11 rides on the plate 12 and 10 thereby becomes entirely infolded, while the flap 10 contacts with the rounded ed e of the member 13 and is by it backwar fy infolded to corres ond to the position 0 flap 11, Fig. 1, both aps thereafter riding along 15 on the slightly upwardly inclined portion of the member 13 which holds the flaps 10 and 11 in infolded position, the major flaps 8, 9 in the meantime, remaining downwardly extended, one in front and the other in the so rear of the member 13, flap 8 being shown partly broken away.

After the carton has arrived at station 2 and pre aratory to the application of the glue, an to hold the carton in place during the action of the flap folding means and the glue applying means, Figs. 1, 2, a stop or limit gauge 14 carrying on its outer end two plates 16, 17, respectively, descends and engages the upper edges of the upstanding top ma'or flaps to hold the carton in position, an to prevent the carton being raised by the subsequent action of the flap folding and glue applying means on the lower flaps.

This limit or stop gauge 14, Fi 2, is a bar pivoted at its end op ite to e plates 16, 17 to an upright 18, ig. 2, rising from the bed plate, the arm 14 having a swmging upward and downward motion imparted to it to a suitable de and at proper times by a connecting ro z tuated from the main shaft of the machine, not shown. This gauge 14 drops to a predetermined fixed ition and if, for any reason, the carton as not been pushed downward by the carton delivering device at station I to a suflicient degree, and has arrived at station II somewhat elevated, the gau e 14 will, lay its contact with the upper edges of the ap members, push the carton down to its roper position and hold it there with the aps 10 and 11 resting upon the member 13. After the glue has been applied, and in order to permit the carton to move readily forward to the next station without fianger of bendin or tearing the flaps, the gauge 14 is raise by suitable action of its connecting rod fromits contact with the upper flaps.

Figure 3 which is a dlagrammatic illustration of a vertical section through one of the cartons, illustrates the positions of the depending flaps 8, 9 as the carton arrives at station II. At the side of the machine, Figs. 2, 9, partly shown in Fig. 10, is located our novel glue applying mechanism which com- 65 prises a reservoir 22 carried by the bed plate the roll 28 with respect to the ro 1, the inner end of the reservoir having an upwardly curved end Wall 23. At this end of the reservoir Figs. 10, 12, there is rotatively mounted between the side walls of the reservoir a main gluin roll 25 on shaft 26 rotating clockwise. This shaft carries at one end, see Figs. 9, 11, a ear 27 which meshes with a smaller gear 28, ig. 9, on the end of a shaft 29 also carried by the walls of the reservoir, and by means of which opposite rotative motion is communicated to a lue feed regulating roll 30, Fig. 12. rotatin 1n the opposite direction from roll 25 an acting to permit only a thin uniform film of glue to e brought up from the reservoir 22 and carried forward or outward by the main gluing roll 25. This rotating regulating roll is much more eflicient than a fixed regulating member because it carries back to the reservoir any excess adhesive and does not permit it to pile up and accumulate on the re lating member to harden and interfere with the subsequent control of the lue.

On the top edge of one on and near each side of the glue reservoir 22, Figs. 9, 11, 12, are adjusting nuts 31 on the ends of rods which engiige the bearings 30 for the shaft 29 upon e upper edges of the reservoir 22 and by means of these adjusting nuts and rods which are normally pressed inwardly by springs 30 on the rods, the osition of 25 can be adjusted and thus it is used to regulate the amount of glue which the roll 25 will carry upwardly from the reservoir.

The springs 30 also permit automatic adjustment of the rods and bearings 30 should that be necessary to permit a lump of glue to pass between the rolls 25, 30.

Adjacent the gear 27, Figs. 9 and 11, and on the end of the shaft 26 is a lar r car 32 which meshes with a gear 33 on e riving shaft 34 also carried by upwardly extended V-shaped brackets 35 from the side walls of the glue reservoir. This shaft 34, Fig. 9, carries on its end and adjacent the gear 33 a somewhat smaller gear 36 which meshes with a gear 38 on shaft 39 in the brackets 35, which shaft carries on its opposite end, Fig. 11, a

spiral gear 40. This gear, Figs. 10, 11, meshes with a similar gear 41 on a shaft 42 in ears 44, 45 on the arm 46 constituting, Fig. 2, part of a rack or frame 47 including a second arm 46, both connected by rods 48, the lower end of the shaft 42, Figures 10, 11, carrying a bevel gear 49 meshing with a bevel gear 50 on shaft 51, which shaft, in turn, carries a pinion 52 in mesh with a similar pinion 53 on adjacent shaft 54, also carried in the arms 46.

'These shafts between the arms 46 are enlarged and act respectively as glue applying rolls 55, 56.

Rotation is imparted to the shaft 34 through any convenient and suitable means from the main shaft of the machine, not

"Juli. I shctfi iiflGneend of the shaft, Fig. 10, 34 cariies aeam 57 for'imparting motion to a.

rol'1 58 on an "arm 59 pivoted upon the shaft lilhyl hiizh arm has'an upward extension with a slot 60f'therein providing for adjustment thereon'of the arm 46*with the rolls 55, 56 so thtiti'thdsired movement of the rack and travel off tlie applying rolls can be effected *accordingto the length'of the flaps. for the purpose of applying glue to the downwardly extehded flap 8 of thecarton by means of the lue applying rolls 55, 56, as illustrated 3 and 9. It will be noted that the follsfifif'fih have an independent rotatable action during their contact with the main gluin rbllf 2 5, and both rest upon its glue carryii ig siir-face without coming into con- .tac't w1tli each other so that each roll is cer- "tain to besupplied with glue to the required extent independently of the other, over its entire surface.

Fig. 3 illustrates the position of the lower 9, and minor flap 10 .of the carton'at tion II. It has been customary herctof c n machines for this purpose to infoldthe lower major flaps 8. 9 by fixed folding members, 'A serious disadvantage of this ,method'of so doing is that. as the glued flap 8 slides alongthe fixed folding member 13 or its substitute, designed to support the flap, the gluecomes into contact therewith and is to. a. considerable extent wiped off, thereby leavingthe flap insuiliciently glued and also causing fan annoying application of glue to the flaplsupporting member. which glue gradi-lallyd uilds up and hardens and interfers, with, the satisfactory performance of its function .by the flap supporting member.

a This built up and hardened glue causes the flap of the succeeding cartons to drag and become more or less twisted and sometimes even .torn. The cooperating fixed folding 'mcmberfor the opposite flap 9 being free from anybuilt up hardened glue permits the opposite nnlglued flap to slide along without difficulty ry ich causcsit to travel ahead of the glued flap. and therefore, when it is folded inwardly and upwardly on the flap 8, it does not i'cgister therewith or fold squarely, and as a consequence makes a poorlooking carton end.

Again, there will also be some leakage of glue from the glued flap 8 which will accumulate on its folding member, and as the carton moves to the next station, the printed cartonend as it moves across this accumulated glue, will smooch the printing and leave streaks of Inc on the carton end; and to avoid this ifiiculty the following novel described means has been devised.

=With the flap 8 in position shown in Fig. 3, the rack 47, Figs. 10, 12, carrying the glue applying rolls 55, 56 is raised by the action of the cam 57 on the roll 58 and swings upwardly and the rolls 55, 56 engage the downgear 41. the turning of the rolls 55, 56 is practicall stopped on their return travel by the spira gear connection referred to, and so the rolls do not tend to remove any glue as they swing downwardly.

As the carton 6 moves toward station III, Figs. 1, 4, the flaps 8, 9 leave the plate 13 and straddle a flap supporting rocker arm 65 with a rounded nose 66 carried by a shaft 67 operated by suitable connections, but not shown, this rocker arm 65 being at the time in the positions shown in Fi ures 2 and 4, and thus acting to support t e minor flaps 10, 11, in their infolded position, Fig. 1, station III. At this station, the major flaps 8, 9 are then infolded by the several steps effected through members 65, 70, to be described by suitable connections which it is not necessary to show, the action of the rocker arm thereon being shown in Figs. 4 to 8 inelusive, this rocker arm 65 being at the time in the positions shown in Figures 2 and 4, and thus acting to support the minor flaps 1O, 11, in their infolded position, Fig. 1, station III.

After the carton has arrived at station III with glue applied to its flap 8, the rocker arm 65 turns slowly to the right, Figs. 4, 5, bending the flap 9 outwardly while the glued flap presser arm 70 on the rocker shaft 71 engages the outer face of the flap 8 and folds it in.- wardly, and, Fig. 6, presses its inner glued face on the outer face of the minor flaps 10, 11, already infolded, while the arm 65 travels outwardly and downwardly, freeing itself from the contact with the flap 9.

\Vhile the arm 70 is still holding the flap 8 against the minor flaps 10, 11,Fig. 6, the arm 65 starts to return to the position shown in Fig. 4, the arm 70 in the meantime withdrawing, Fig. 7 and when the arm 65 contacts with the flap 9, the latter is bent inwardly a little and against the edge of the infolded major flap 8 sufliciently to hold it in position while the arm 70 withdraws and for a few seconds the arm 65 remains stationary. After the arm 70 has been sufficiently withdrawn, see Fig. 8, the arm 65 continues its inward travel and folds the flap 9 upwardly against the outer glued face of the fiao 8 and presses it against them, thus closing the carton end.

The flaps 8 being glued on both faces, it is obviously desirable to disturb this glued flap face as little as possible, and also desirable to leave as little Inc as possible on the fiat face of the arm 70 as the flap 8 is folded inwardly; hence, this face is made as large as practicable and provided with tapering lla contacting ribs 72, which, being narrow, re uce to a minimum the area that actuall comes in contact with the glued surface an therefore, removes a minimum amount of the glue from the flap, see Fig. 2.

After the withdrawal of the arm from the flap 9, the carton is advanced by the carrier by its intermittent motion to station IV, Fig. 1, where it may be filled or charged from any suitable charging means, not shown, and thereafter the carton is again fed forwardly to have its upper flaps folded by any preferred means, not shown, but which may be like the means already described for gluing the lower flaps, the gluing members being substantially the same as those illustrated and described herein except that the glue applying rolls are mounted to have a downwardly swinging action for a plication of the glue to the upstanding top aps.

Occasionall the carton will be found imperfectly ma e and when it is fed to station I by the opening members, it will be bent and distorted and sometimes will not be properly positioned, but will stand up above the proper height. In such case, it is desirable to stop the machine at once and remove the imperfect carton and for that purpose I have designed a novel device. a

On the gauge 14 is a block 73 to the side of which is pivoted at 74 an arm 7 5 which is held by an ad usting screw 76 in desired position against the action of a spring, not shown, a out the pivot, tending to raise the arm 75. The outer end of this arm 7 5 carries a fiber or non-conducting section 77 which in turn carries an arm 7 8 with a terminal post 79 for a wire 80 leading to any suitable relay switch, not shown, controlling the power operated switch for the machine.

On any convenient movin part of the machine, as the head 81 carrying the carton opening blade, not shown, is a cooperating contact member 82 which in its normal lower position does not engage the contact 78.

When, therefore, a carton reaches station II which has been fed or thrust into station I in an improper manner for any reason, the carton being above the proper height, it will not permit the gauge 14 carrying the contact 78 to drop to its normal position, but the contact will remain at such a height that when the contact 82 comes down with the blade to open the next carton, contact 82 will engage contact 78, close the circuit, operate the relay and thus open the power circuit to stop the machine.

On the bed plate 1, Figs. 1, 13, and positioned immediately beneath the path of the cartons on the carriers 4 and at station IV,

is an anvil 100 with a convex top face. After the flaps have been glued and pressed firml into position by the member as describe there is still a strong tendency at times, depending somewhat upon the nature of the material of which the carton is made, but due more to the air displacement by the material during the filling of the carton, in the lower folded flaps 8, 9, to bulge outwardly or sag downwardly with the result in such cases that the carton end will not be securely sealed and will not provide a flat compact, symmetrical locking end.

To meet this difliculty, I have conceived the following novel means. On the shaft 99 is a cam 101 with a cam groove thereon, not shown, in which travels a roll 102 on the forked end 103 of a rod 104 connected at its upper end with one of a bell crank lever 105 on a shaft 106. This lever 105 carries an inwardly directed pressure sealing end 107. The opposite end of the bell crank lever 105 is connected by a rod 108 with one arm of a bell crank lever 109 pivoted at 110, and to the other arm of this lever is secured one end of a connecting rod 111, the opposite end of which is secured to one end of an arm 112 on a shaft 113. This shaft 113 also carries an inwardly directed and oppositely acting pressure sealing arm 114.

By the action of the cam roll 102 on the connecting rod 104 and the cam 101, these arms 107, 114 are caused to rock at the proper time inwardly and downwardly against the folded edges of the lower major flaps 8, 9, of the carton end to press them firmly downwardly upon the anvil 100 and, by so doing, act also to press the minor and major flaps tightly together and hold them so until the contents of the carton have been deposited in it, and by this action help the adhesive firmly to lock the flaps together.

When the contents of the carton are dumped into it, the air rushes to escape. There is also, with many kinds of material placed in those cartons, quite an amount of dust which the rushing air tends to carry with it between the folded flaps and which, if it gets between the flaps, interferes with the setting of the adhesive on the flaps. Now by applying pressure as above described to the folded flaps, they are held tightly together, the air and dust are prevented from entering between them, and the glue sets properly without interference, being aided by the weight of the contents in the carton.

From station IV the carton may be carried forwardly a sufiicient distance to be engaged by any suitable carton projecting mechanism, not shown, and thereby ejected from the machine.

Our invention is not limited to the particular embodiment thereof described and illustrated therein.

We claim:

1. In a packaging machine, carton lower end closing means comprising a reservoir for adhesive, a feed roll therein, rotatable quantity-regulating means therefor, and lowerflap gluing means comprising a plurality of rolls normally in contact with the feed roll, and means to cause them to apply glue to the opposite faces of the lower flap.

end closing means comprising a reservoir for adhesive, :1 feed roll therein, a movable quantity-regulating means therefor, and independently driven flap engaging members and means to cause them to apply glue to the opposite sides of the downwardly extended flap.

3. In a packaging machine, a carton lower end closing means comprising a reservoir for adhesive, a feed roll therein, a movable 2o quantity-regulating member, and inde endently driven adhesive applying mem ers therefor moving in a curved path, including a plurality of rolls normally in contact with the feed rolls and means to cause them to aply glue to the opposite faces of the lower i In a packaging machine, carton lower end closing means comprising a reservoir for adhesive, a feed roll therein, movable i0 quantity-regulating member, independently driven adhesive applying members, and an adjustable movable rack or the applying members to determine the scope of their effective action, and means to swing the rack 85 and applying members from the feed roll to the downwardly extended flap and to retate the applying members in contact with the opposite sides of the flap.

5. In a packaging machine, carton lower end closing means comprising a reservoir for the adhesive, a feed roll therein, a rotatable and adjustable guantity-regulating member, independently riven applying rolls each having independent contact with the feed roll, and a rack to swing the applying rolls toward and on opposite sides of the fla to be treated, and means carried by the me to impart independent motion to the applying rolls on the way to, while applying adhesive, and on the way back-from the carton flap.

6. In a packaging machine, carton end closing means comprising laterally and downwardly acting carton glued and folded flap resing means to apply pressure thereto a ent the edge of the carton end while forcing the flaps tightly together and pre: venting entrance of dust and to reinforce the adhering action of the adhesive on the flaps.

7. In apackaging machine, carton end closin means comprising carton lower flap and slde wall external pressing means and an anvil therefor, to reinforce the adhering action of the adhesive on the flaps.

8. In a packaging machine, carton end closing means comprising an anvil in the ver- 2. In a packaging machine, carton lower tical plane of the carton, and arms acting to press the attached edge of the ngd ap s on the anvil to reinforce the dhering action of the glue.

9. In a packaging machine, cartonxend closing means comprising an anvil for the carton, pressure applying arms on opposite sides thereof and means to causetbe arms to swing towards and engage the op, osite carton side walls and press'the glue .flaps on the anvile to reinforcethe adhering action of the glue. 7 w i 10.- In a packaging metastases end closing means comprising ananvil .for the carton, an arm pivoted at one side of the carton, a shaft therefor, a lever on the armshaft, a rod connecting one lever arm with thedriving shaft, a bell crank lever, a sepond arm connecting the opposite lever arm,with the bell crank lever, a second armontth opposite side of the carton, a rod connecting the bell crank lever with the second arm to depress the arms against the cartongto reinforce the adhering action of the flaps;

11. In a packaging machine, cantonlower end closing means comprising, inwcombination, carton positioning means,,fla p folding means and flap gluing means including a feed roll, a. regulating roll and independently driven glue applying rolls, and means to cause each to pick up, carryland applyindependently, glue to a downwardly extended flap, and to rotate on and in contact ith but independently of the feed rolla-te, spread glue therefrom over the applying rolls. a

12. In a packaging machine, carton; lower end closing means comprisingyin combination, carton positioning means, flapfolding means, and flap gluing means 1 including a feed roll, a regulating roll, independently driven applying rolls, and: travel regulating means for the latter, to and from. adownwardly extended flap. L a r 13. In a packagingmachinf, carton end closing means comprisinglin combination, carton flap gluing meansincluding a feed roll, a regulating roll therefor, independently operative applying rolls, travel regulating means therefor, and folded ,fiap pressing means comprising oppositely "a'ctingarms for engaging and pressing the flaps during the filling operation.

14. In a packaging machine, carton end closing means comprising a reservoir for adhesive, a feed roll therein, an independently inovable quantity-regulating member, indeendently movable adhesive applying memers, and an ad]ustable.rack and a rack actuatingarm therefor to actuate the applying vmembers and to determine the'scope of their effective action.

15. In a packaging machine, carton end closing means comprising a reservoir for adhesive, a feed roll therein, an independently rotatable and adjustable quantity-regulating member, ositively rotatable havingin ependent contactwitht and means to swing wardly toward and on opposite sides of ap lying rolls he feed roll, the applying rolls upflap to be treated.

closing means comprising an carton, pressure applying arms on opposite sides thereof and means swing toward end enfigge the opposite carton lower major side we 16. In a packaging machine; carton end anvil for the to cause the arms to to press themm and down upon the bottom flaps to close the joints carton lower comprising, in combinacarton detectdetermining if the carton is in means and flap eed roli, a re driven applying for the from a downwardly extended carton lower uantity-re lating member, driven applying rolls each having indepen ent contact with the feed roll, a rack carrying the applying rolls and swingable to carry the ap on opposite g rolls toward and sides 0 t e flap to be treated,

means carried by the rack to impart independent motion to the applying rolls on the way to and while applyingiadhesive, including gear connections for a shaft on the rack ogerativel t e applying rollsi connecte aft on t e rack conone applying roll, a s

necting the first named shaft with the driving means therefor, and a cam o eratively POSI- tioned with respect to the me for imparting alternately thereto glue replenishing motion and glue applyin motion.

In testimony w ereof, we have signed our names to this specification.

EDWARD VAN mm PYL. ROBERT H..STIMP QN-,

CERTIFICATE OF CORRECTION.

Patent No. 1,857,680. May 10, 1932.

EDWARD VAN DER PYL ET AL.

It is hereby certified that error appears in the printed specification of the above numbered patent requiring correction as follows: Page 4, lines86 and 87, for "end read arm; page 5, line 76, claim 9, for "anvile" read anvil; page .6, line 10, claim 16, for "end" read and; and that the said Letters Patent should be read with these corrections therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 12th day of July, A. D. 1932.

M. J. Moore,

(Seal) Acting Commissioner of Patents.

member, ositively rotatable havingin ependent contactwitht and means to swing wardly toward and on opposite sides of ap lying rolls he feed roll, the applying rolls upflap to be treated.

closing means comprising an carton, pressure applying arms on opposite sides thereof and means swing toward end enfigge the opposite carton lower major side we 16. In a packaging machine; carton end anvil for the to cause the arms to to press themm and down upon the bottom flaps to close the joints carton lower comprising, in combinacarton detectdetermining if the carton is in means and flap eed roli, a re driven applying for the from a downwardly extended carton lower uantity-re lating member, driven applying rolls each having indepen ent contact with the feed roll, a rack carrying the applying rolls and swingable to carry the ap on opposite g rolls toward and sides 0 t e flap to be treated,

means carried by the rack to impart independent motion to the applying rolls on the way to and while applyingiadhesive, including gear connections for a shaft on the rack ogerativel t e applying rollsi connecte aft on t e rack conone applying roll, a s

necting the first named shaft with the driving means therefor, and a cam o eratively POSI- tioned with respect to the me for imparting alternately thereto glue replenishing motion and glue applyin motion.

In testimony w ereof, we have signed our names to this specification.

EDWARD VAN mm PYL. ROBERT H..STIMP QN-,

CERTIFICATE OF CORRECTION.

Patent No. 1,857,680. May 10, 1932.

EDWARD VAN DER PYL ET AL.

It is hereby certified that error appears in the printed specification of the above numbered patent requiring correction as follows: Page 4, lines86 and 87, for "end read arm; page 5, line 76, claim 9, for "anvile" read anvil; page .6, line 10, claim 16, for "end" read and; and that the said Letters Patent should be read with these corrections therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 12th day of July, A. D. 1932.

M. J. Moore,

(Seal) Acting Commissioner of Patents.

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