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,A'Jß 23» 1938» -r w. D. KIMBALL ET AL 2,127,924l GAN BOXING MACHINE Filed'Au'g. 1'7, 1936 [Q1/né( 3m' 10 sheets-sheet 2 '77451K ATTORNEYS Aug. 23, 1938. 2,127,924 w. D. KIMBALL ET AL CAN BOXING MACHINE 1ov sheets-sheet :s Filed Aug. 17, 1936 INVENTORS BY ' ZM, )QM ma* ¿AWAY 7 l THE/«ATTORNEYS ' Aug. 23, 1938. w. KIMBALL. E'r AL >2,127,924 ' CAN BOXING> MACHINE Filed Aug. 17, 1936,“ . 1o sheets-sheet# THe/f? ATTORNEYS ì Aug.ì23, 1938. -w. D. KlMBALLEr AL 2,127,924 CAN BOXING MACHINE Filed Aug. 1'?, 1936 10 SheStS-Sheet 5 /03 INVENTORS l \ @fw 4v ¿lama THE/1€ ATTORNEYS Í, A_ugß 23, 1938. w. D. KIMBALL ET AL 2,127,924 CAN BOXING MACHINE Filed Aug. 17, 19:56 /03 - - 36 1o sheets-sheets 35M /03 /07 f0.9 l. I my ` i | f5 « ' f. Banu.; BY fam? E uw - y ¿"«4-4-7 M’THE' @Maf œ ATTORNEYS v 4 Aug. 23, 1938. 2,127,924 w. D. KIMBALL Er AL CAN BOXING MACHINE ‘ Filed Aug. 17, 1936 10 Sheets-Sheet 7 \NVENTORS 4MM' ¿7. T//Ene ATTORNEYS Aug. 23, 1938. w. D. KIMBALL ET A1. 2,127,924 _ ` CAN BOXING'MACHINE Filed Aug. 17, 19.36 10 Sheets-Sheet 8 Aug@ 23, 1938; W. D. KIMBALL. E; AL -2,127,924 v CAN BOXING -MÄCHINE Filed Aug". 17',v 193e 1o sheets-sheets TM5/É’ ATTORNEYS Aug. 23, 1938. 2,127,924 ' w. D. KIMBALL Er AL» CAN BOXING MACHINE 1o she‘ets-sheet 1o Filed Aug. 17, 1956 W_il-; eww @N / INVENTORS f ma?? ATTO RNEY5 2,127,924 i’atented Aug. 23, _1938 » 'uNiTr-:D ` STATES -PATE-:rrr OFFICE 2.121.924 CAN noxlNG MAcmNs Wallace D. Kimball, Jackson Heights, Cornelius I. Braren, Jamaica, and George l’. Schaefer, Bronx, N. Y., assignors to Standard-Knapp Cor poration, Long Island City, Y., a corporation of New York «Application Auron 1v,y 193s, semi No. 96,496 1s claims. (cli> zzo-1s) s invention ¿relates to machines capable of twelve cans put into theV machine‘will be stacked stacking canned goods orvthe like in suitable su ‘ perposed rows-and then forcing the cans into.j ~boxes 'or cartons of suitable'vsize> to receive a dei in four rows of three cans each and introduced `into'theilrstbox- Toward this end the machine ~ includes the provision of means for separating or v_ inite number of cans. > Machines of this gene’ral character constructed heretofore have been so designed that a number - >distributing the cans. as they are introduced, be- \« _tween a number of different channels corresppnd- Y of cans in excess of that required for a single " ing with the rows to be formed. ` The means pro row have' had to be introduced into the machine, vided for this purpose is simple yet effective and completely reliable and-is capable of performing before the cans for the next row‘ above or be low could be supplied. For example, i‘f it were desiredto‘ stack twelve cans in three rows 0I four cans each it would be necessary in the’prior con its function ata speed greater than thatat which the machine as a `whole maybe operated. This mechanism enables the .emcient use of the ma# structions to introduce a number-of cans in ex_- , chine inthe r boxing ci` stored cans: ..15 cess of the twelve to be boxed in order to eiïectk 20 Another ic ture of the machine contemplated 15 the _desired stacking.y Thus the iirst four 'cans of by the present invention is the provision of means a batch feci into the machine would Supply one orthe rows, while the next group of between four and ten cans or more would notbecome a part stacking instrumentaliti?esgi'or the grouping of of-,the stack then in the process of formation. 'i‘hevsucceeding group of four cans _would consti-` tutea second row of the stack and there might be an additional group of cans entering the ma? chine to ñll up certain reserve storage spaces be 25 fore thefnext series'of four constituting the third row of the stack‘wouldbe introduced. _Thus the twelve cans, for example, which would be stacked for 'boxing would not be any twelve- successive cans put into the machine but would be'coml 30 posed of groups oi four cans separated by other' groups of cans successively introduced into the ~ machine. This is quite lobjectionable wherethe „machine is usedior the purpose of reboxingcans permitting the use oi thel same distributing-and two stacks, oi _say twelve cans each, one in >ad vance of the otherv and forcing these during one 20 operation oi' the machine into a box of suitable dimensions.> Heretotore in the boxing of cans in two layers or tiers it has been necessary to provide two separate stacking mechanisms placed side by side to formY the two'groups or stacks or cans' or to operate the machine twice to separate ly introduce each layer into a box. The means provided in accordance with this- invention for boxing two stacks of cans in a single operation is ' such that there .is substantially no .lost time -due 3@ to the use or the same stacking devices and-th operation is emciently carried out. 1 ~ Adjustability. of the various portions of th ' machine' to .adapt it_readily to the’handling ol' It is a .common practice to store canned goodsA cans oi' various diameters is'ano'ther feature `oi? 35 which have been stored away. 35 in unlabeled condition in cartons or boxes which > are not sealed. When the goods are toebe ship/pcd the invention. The construction for this purpose for use they are passed through a~ labeling mtl.-chine and then through a boxing machine again. -Dueto the diiïerent character of the goods stored mechanism' and the width of certain channels in is suoliO that the opening through which the cans are introduced into the separating'or distributing ' this mechanism, may be varied to insure proper‘ 40 in different lots it is'highly desirable that'the ` operation of this mechanism in the handling 'oi goods-‘should be repacked in thesame boxes or at different sizedcans.- Means are alsoprovided for adjusting- the runways which deliver the cans from the original boxes. This is not possible in l ‘ irito the stacking chamber or portion of the ma they operation of can' boxing machines heretofore chine and for adjusting certain detente and~stops 45 known for the reasons already explained. When associatedwith this portion of the machine. ever a change in the character of the goods be-Other features and advantages oi the construc ' .least in the same order in which they were taken ‘ , V45g Ã Y. »ing boxed is met with it is necessary to remove the final cans of the precedinggroup and stackïthese - so' by hand. Y . -V _ v. _ It has .been an important obje‘ct of the present `-invention to provide a can boxing machine' which ` zwill stack the cans in the same order in which they are introduced into the machine. The-ar ` „ ~ I6 'rangement is-_such,¿for„examp1e, that the. first? tion'contemplated by the present invention will appear from the detailed description of _ an illus-_ trative form of the-invention whichv will now be to described _in detail in `conjunction with the ac"- ' _companying drawings, in which: . . Figure 1 isa side elevation of the complete machine. .Figurezis ayverticaLlongii-.udinai section taken é 2,127,924 bly spaced by means of rods 20 riveted or other wise secured to the guides. The spacing of .the latter may be such as to place them lin close proximity to the side plates or they may be sepa rated slightly therefrom. In a machine intended through the separating or distributing portion of the machine. Figure 3 is a transverse, sectional view taken along the line 8_8 of Figure 2. v Figure 4 is a horizontal, sectional view of a to handle filled cans the guides are preferably ' detail taken along the line 4-4 of Figure 2. close to the side plates so that the heads of Figure 5 is a horizontal, sectional view taken- held the cans will engage or roll upon the edges ofthe along the line 5_8 of Figure 2. guidesf' On the other hand where the machine Figure 6 is a plan view partly in section of the is intended to handle empty cans it is preferable stacking chamber or portion of the machine dis to permit the bead at the bottom of the can to closing the runways leading thereto. Figure 'l is a side elevational view of the stack fit between the guide and the adjacent side plate. Guides I8 may beladjustably supported ‘bythe ing portion of the machine with certain parts broken away, illustrating certain detents and Il stops, as well as the pushing devices used in forcing the cans into the boxes; a . . Figure 8 is a vertical, sectional view on line 8-8 of Fig. 'I showing the construction atvthe stacking and boxing end of the machine. Figure 9 is a horizontal, sectional view taken along the line 9-9 of Figure 7. ' Figure l0 is a sectional view disclosing a de tail ‘and is taken along the lines Ill-_I0 of Figure 9. Figure 11 is a diagram illustrating the develop- ' ment of certain cam faces. _ Figure 12 illustrates a modification. _It .is a view similar to Figure l, but from the opposite, or front, side of the machine. Figure 13 is a section taken on line `I3-I8- of Figure l2. Figure 14 is a view illustrating the operationv of the can feed line lcut oil. . , Figures 15 and 16 are views showing the con struction of the funnel of „the machine of- Figure 12. Figure l5 is a’vertical section taken on line II-IB of Figure 16, and Figure 16 is a hori zontal section taken on line I8-I8 of Figure 15. Figure 1'1 is a plan view of certain parts of the machine of Figure 6, these parts being of modi fied construction;- and . Figure 18 is a view showing the development of -the modified form of cam shown in Figure 16. Referring’now to the drawings, 'the machine may comprise a suitable frame _structure lli 45. adapted to support all of the various portions of the machine at a suitable height above " the4 side plates through the use of bolts or studs 2iv riveted or otherwise secured to one of the guides andadapted to extend through elongated open ings 22' in the side plate I6. A wing nut 23 may be provided for each of the bolts 2i and will lserve to hold the two ends of the guides in any desiredsv _position of adjustment. One extreme position of the guides is shown in'` full lines in Figure 2 and the other extreme position is shown in dotted lines in this figure. In a similar way the pair of ' v guides I9 may be joined by a pair of rods 24 and may be adjustably` supported by studs or bolts 25 riveted or otherwise secured to one of the guides and adapted to pass through elongated openings _28 in the side plate I6. Wing'- nuts 23 may be provided on the bolts 25 for clamping the guides in any adjusted position between the full and dotted linesindicated in Figure 2'. . §y proper adjustment of the pairs of guides the opening at the top of the' distributing mecha nism as well as the channel formed in part'by the guides may be varied to a. suitable extent to accommodate cans of various diameters. The adjustment of the guides should be effected in such a way that >-the opening will at all times be substantially centrally disposed. This opening, 'furthermore, should be of -such .size as to per 40 mit the cansto drop freely through it but should not be so large that any considerable lateral movement of the can within the opening _is p_er mitted, since such a' movement would be apt to cause a binding of the pair of .cans between cer 45 tain devices below the opening and the walls of the opening. y ' _ ' Directly beneath the opening provided be may be Áprovided with up-- v - tween the guides I8 and I9 there is mounted a standing arms’4 having mounted thereon at an- shaft 21 which may be suitably supported by a 60 appropriate'inclination _to the horizontal a base pair of bearing elements 28 secured in any suit or frame structure Il. At the high or left end able way to the outer sides of the plates It' and of this structure, as shown in Figure 1, there is I1. The_shaft 21 may have keyedÀ or splined provided the distributing or separating mecha '.theretoa pair of elements 29 in the form of a nism designated generally by the reference portion of a star wheel, one of these. elements 55 character ‘I2. Suitable inclined runways or being placed adjacent each of the side frames tracks .i8 leading from the discharge end of the IB and "I1 and being either in contact`therewith distributing mechanism serve to convey the cans or spaced slightly therefrom depending upon to the stacking chamber or portion of the ma- _ whether the machine is intended to handle filled chine, generally designated by the reference or empty cans. 'The elements 2i are provided character I8.' The cans to be stacked and boxed with a pair of curved >surfaces 8|! and 8| which may be supplied to the- machine in any suitable are suitably inclined'toward the point l32 of a way, as by means of an inclined runway Il above star wheel construction. When the elements 2l gro'und. ' This frame y the distributing mechanism. Figures 2 to 5 disclose the details of the con struction ofthe separating or distributing mech anism. -This mechanism may beI suitably en 'are in the position shown in Figure 2, a can drop ping through the opening between the guides- I8` and I8 will strike the surfaces 80 and due to the slope of these surfaces andthe relation of the center 'of gravity of the can with respect to the closed by a pair of side plates I8 and I1 which are'ioined by various cross rods and shafts, to be - shaft 21, the members will be rocked about their j ' referred to hereinafter. Between these side pivots until ~the extensions 88 engage the upper 70. 70 plates, which are spaced a slightly~greater dis-' ,of plates 34 secured to the side plates y tance than the normal height of the cans to be Y surfaces I8 and I1. As a result of this operation the can handled by the machine, are adiustably mounted f in question will be _directed into the channel pairs of guide elements I8 and Il. 'I‘he guides formed in part by _the guides I8. The succeed- l' I8, one of which is adjacent each of the side- ing can passing through the opening between plates I8 and I1, may be Joined and held suita A 2,127,994 ' , 3 the guides I8 and I9 will then strike the curved _and hold it back to produce a separation be surfaces 3| of the elements 29 and will cause these elements to be rocked in a clockwise direc tion until vthe projections 35 strike the upper 5 surfaces of the plates 34, being then again in the position shown in full lines in Figure 2. In the r course of this rocking movement of the elements 29 the second can will be directed toward the guide I9. Theelements 29 thus provide a means 10 for dividing or distributing the cans. fed con tinuously throughy the opening, alternately into channels at the left and the right of these ele ' ments. ` The cans which are delivered to the left of the 15 elements 29 `slide over extensions 35 of the plates 34 and drop into contact with one or the other of a pairy of curved surfaces on star wheel eie ments 31 which are similar in all respects to the elements 29. The elements‘31 are carried by a tweenV the cans tol be _boxed and those remain ing on the runways. This construction is for the purpose of avoiding the tearing of the labels von the cans, which would arise from the relative '3 longitudinal movement between those being `shifted and the adjacent stationary cans. At the appropriate time the canswhich have been prop erly` lined up for boxing are forced by means of a pusher 52 into a funnel 53 over or adjacent to which is placed the open end of the box or carton into which the cans are to be loaded. The operating mechanism for 'causing the withdrawal ofthe stops 50, the operation of the detents 5I and the shifting of the pushers 52 will now be described. This mechanism, as will be pointed out, is so constructed and controlled that during a single cycle of operation oi.’- the machine the stops and detents are operated twice while 2o shaft 38 mounted in bearing'inembers 39 secured ~-the pusher is given two operations oi' different . to the side plates. The action of the elements7 31 magnitude. The first operation of the pusher, is precisely the same as that of. the elements 29, following the release of the tripping mechanism they being rocked about their pivots until their provided, serves to force two stacks or groups ot“ lateral wings or extensions engage plates or cans placed end for end into the box. in the 25` brackets 40 secured to the side plates. It will be machine illustrated this will mean the boxing ot y apparent that through the provision of the ele- i. twenty-four cans stacked in two groups, end for ments 31 a further separation of the cans be end, of four rows of 'threecans each. For this tween two additional channels is provided. In purpose the pusher is given its full or long_strolre. 4 a similar way a further separation oi the cans i so directed 'toward the right of -the elements 29 is effected.i 'I'hese caps roll over the ends 4l of plates 34 and drop into engagement with one or the‘ other of the pairs of curved surfaces carried by star wheel elements 42. These elements are 35 keyed .to a shaft 43 suitably mounted in bearings 44 secured to the side plates. The rocking move ments of the elements 42 are limited in each direction by engagement of lateral wings or ex tensions thereof with plates or brackets 45'se 4,0 cured to the side plates. „ Subsequently after‘ a new set of cans has been -fedinto the stacking chamber ‘of the machine, w the pusher is given its second‘or short strohe which serves merely to force the single stack oi cans into the funnel. The parts are then re stored tb normal position so that anew- stack ot cans may be formed within the stacking portion ` of the machine and this new Stack, together with the stack already in the, funnel, will then be forced into another box at the beginning of the next operation. ` ‘ ^ Referring now to Figures l and 8, the means nl for operating the stops, detents and pushers corn prlses a large cam 54 having cammlnsprojections Suitable channels to receive the cans as they are distributed ,o‘r divided between the four lanes'l to the left and right of -the shafts 39 and I3, -re extendihgaxially from its opposite faces. This spectively, are formed by‘guide strips or plates cam is carried by a shaft 55 journalled in the 45 -45 secured many-suitable' way to the side plates side frames a suitable i9. The clutch shaftconnection, 55 is in turn by adriven, sha of the mechanism. The guide strips 46 terminate through directly in line with the inclined runways i3 and serve to deliver the cans to these runways.` It will 'be clear that through the provision of the 50 three sets of star wheel or divider elements 29, . 31 and 42, in the manner explained, each succes sive group of four cans will be distributed bc tween the xfour separate runways I3. ,As illus trated in Figure 3, these runways may comprise a _ 55 bottom plate 41 and side angle members 49 hav connection 56, connected between with the an shafts electric56motor and 55nl. is made through suitable reduction gearing enclosed `in a59housing of 'any 58suitable and through form, athe one-revolution construction clutch being `such that under the control of a foot pedal, the canr 5a may be given a single revolution at will. The foot pedal, not shown, is disposed conven -iently trippedbeneath by the the operator funnelof 53 thewhere machine it may when be ing their vertical legs suitably spaced a slight distance greater than the 'height `of the cans >ever he is Fready to have the cans forced into 'a Jhandled by the machine. y box. This pedal may be connected by a link tt 1 As the cans are discharged to the runways Il, to any suitable mechanism for tripping the clutch 60 they are fed by gravity to thelower or right ' to >permit the shaft 55. to 'be driven through one t; ,t hand end of _the machine, as shown in Figure '1, revolution at the. end of which it will be auto which constitutes the ‘stacking chamber and box ing portion of the machine. Here the cans are (arrested by a. series of stops 50, one of which is matically stopped until the clutch is again tripped. N _ f ' . For the purpose of operating the stops 5Fl, the cam 54 is proyided with an axially extending "65 provided for each »of >the rows oi' cans. These stops, as wilLbe presently explained, are onlyV camming projection 63 adapted to cooperate with . temporarily held in the position shown in Fig `a rollerÍ 64I carried by an'arm 95 secured to aÁ ure 1, and at the proper time are withdrawn to shaft 99 'suitably mounted in a bracket 999 sup- \ permit the cans to vshift a slight distance fur ported by the >framework of the machine. n ‘70 ther- toward the end /of the machine. At‘the .Spring 539 serves torock shaft 86 and the arm t5 70 same'time 'a series of detents or divider bars 5I, tomaintain the roller 64 in'engagement with the one related -to each of the runways, will >be rocked. ‘surface `of the cam.Á IAlso secured to the shaft , downwardly in synchronismv with or preferably` I9 is an arm 91 which is connected bylflink 93 slightly in“, advance of the withdrawal of theA stops to a shaft 19 mounted in a bracket 1i' .carried 75 59y toy engage the‘lowermost can on each runway by the framework of the machine. _ A pair of 1; l l 2,127,924 the opposite side of the element 54 from the cam formations 53 and 19. A roller 94 carried by an ‘arms 12, also secured to the shaft 10, carries la rod 190 which forms‘a pivotal connection be arm 95 secured to a shaft 96 is held in contact with the surface of the cam formation 93 by means of a spring 91 which is attached at one end to a fixed portion of the machine and at its tween the arms and a rearward extension 1I of each of the stops 50. The extensions 15 are also pivotally connected by meaps of a rod 14 to a pair of arms 15 pivotally supported by means of a shaft 16„çarried by the bracket 1 I. The shafts 10 and’16,- as well as the` rods 12 and 14 by opposite end to‘an arm 98 secured to the shaft 95. At its free end the arm 95 is connected to a bolt or stud 99 with an arm |00 pivotally con which the arms 12 and- 15-> are connected to the 10 stops 50, may extend vertically to a suillcient extent to carry and operate all of the detents simultaneously. Due to the parallelv link con nected with a vertically extending shaft or rod 10 IOI. This shaft at its upper end is connected by a similar system of links to the shaft 9B. . For this purpose an arm |02 is secured to the shaft 96 andis connected by a stud or bolt to an arm |09 pivotally connected to the upper end of the shaft |0I. As the arms 95 and |02 are rocked about the axis of the shaft 95, the shaft or rod |0I is drawn bodily toward the stacking chamber of the machine and in its movements is guided by means of suitable guide elements |04 arranged 20 struction provided the stops 50 will be moved in such a way as to- maintain their forward faces in a plane constantly parallel to that shown.15 ' In order to provide for adjustment ofthe posi tion of the stops to maintain cans of different diameters in proper- relation to'the pushers, the link 99 may be provided with a series of holes 11, three being shown, any one of which may be used in vpivotally connecting the link by means of a bolt 19 to the arm 59. adjacent both the top and bottom of the shaft. At its upper end the shaft |0‘| may have' secured thereto a shoe |i0|0 which has grooves along In this way the normal position of the stops may be varied to its side edges adapted to engage and slide along the edges of the guides |04. This arrangement will prevent turning of the shaft as it is shifted by the arms |00 and |02. A similar construction may'be provided at the lower end of the shaft suit the requirements. As already indicated, the cam 63 is of Asuch form as to cause -the stops .to be withdrawn twice during each operation _of the machine at the appropriate time prior to the operation >of the pushers. |0i, if desired, or a roller or collar |0|| may be For the purpose of operating the detents orA provided at this end to ride between the guides 30 dividers 5|, a second axially extending cam formation 19 is provided» on the element 54. This cam formation is adapted to cooperate with a roller 90 carried by an arm 8| secured to a shaft 82 mounted in the bracket 950. A spring 190 serves to rock the arm to maintain the roller 00 in constant engagement with the surface of the cam 19. Mounted on the shaft 92 and adapted to rotate therewith is a yoke 03 Vhaving an up wardly extending bar 04 of channel form. A similarly formed bar 95 is vertically disposed at |04. Secured to the shaft or rod |0|, as by means of split collars |05, are a series of yokes |05 which carry at their forward ends the push ers 52. The yokes |05 are suitably spaced along , the rod |0| to place the pushers 52 in line with . the cans to be forced into the funnel 53 and into the box. They may be adjusted to any'desired' elevation by unclam'ping the split collars. As ‘ previously mentioned, the cam 93 is adapted to give to the arm Y95- and to the pushers both a 40 . long or complete stroke and a short -or half the opposite side of the machine and is -provided lstroke during each operation of the machine. with a yoke 96 secured to a shaft 91. The two shafts 02 and 01 are adapted to be oscillated in unison but in opposite directions, angularly,_by virtue of the interengagement of segments- 99, one of which is secured to 'each of the shafts. Coop erating with the channels of the bars 84 and 95 are «a series of rollers Il carried by arms`90 pivotally mounted on pins or studs 9|. The arms 90 are portions of bell crank levers having arms 92 which are adapted to support the opposite ends of the series of detent rods 5|, as best shown in Figure 8. - A bell crank 9|, 92 is provided at each end.of the detentslIl. , For this purpose the cam surface is provided with a deep depression or dwell 93| and a shallow dwell 992 appropriately situated with relation to the 45 normal position of'the cam. The relation of the various cam surfaces on the cam 54 is such that at the beginning of an operation of the machine the detents 5| are lowered and the stops.50 are withdrawn. >'I'he pushers 52 are then given their long or full stroke to force two stacks or groups of cans into a box. ‘The detents and stops re mainin their lowered and withdrawn positions throughout the operation of the pushers. Dur i'ng the continued operation of the machine, after It will'be apparent that as the channel Abars - the pusher has been restored to its normal posi; 04, 85 are shifted .toward the right in Figures 6 tion the detents and stops are also restored and and 9, the bell cranks will be rocked in unison a new stack of cans is formed in the stacking . in a clockwise direction to lower the' detents into chamber. Subsequently the stops 50 and detents the path of the cans on the runways il. This l5| are again operated and the pushers 52 again downward movementl of the detents will take shifted to force the newly formed group or stack place twice during each 'cycle of the machine, of cans into the funnel 53 in readiness for the due to the form of the cam 19. and it will be so next operation of the machine. By timing the Atimed as to occur substantially in.unison but operation in this way the attendant may trip preferably slightly in advance of the withdrawal 65 of the stops 50. When the detents are lowered the clutch mechanism whenever he has a box in readiness to receive the cans from the funnel Figure '1, will be held against further movement cation of a new box to the funnel, the machine the cans to the left of the same, as viewed in along the runways and lmay even be cammed slightly up‘the runways.l As the withdrawal of the stops 50 is then continued, a separation will be effected between the three cans in each row which are in'V line with- the pushers and the re maining cans‘on the runways. ' ` ‘ The means for operating thegpushers com prises a cam formation Il extending axially from 53. While he is then preparing for the appli will continue its operation to store the first stack or group of cans in the funnel. In order to facil ltate the Aoperation of the machine by a' single attendant suitable means, forming no part of ' the present improvements, may be >provided for' holding the boxes -in position during the loading `operation and for lowering or discharging them 75. 2,127,924 after they have been loaded. -'I_'his leaves Vthe operator free to attend to the preparation and applicationfoi’ ~the boxes to the funnel.v _ lin order to adapt the machine to Vmore readily 5 cans are heavy, the time for acceleration and for ward movement into the stackingl chamber be-` comes appreciable; Furthermore, although the cans will flow handle cans of different diameters, provision is through the distributing mechanism I2 at a rate 5 made for varying the positions of the ends of the .which isequal to or higher than the rate at which runways i3 which are located in and adjacent _ the cans can be placed in the packing cases by _ the stacking mechanism and plunger, if- the cans nlrnble to reduce as iar as possible the amount of were required to roll directly from the distribut the stacking chamber of the machine.v It is de separation between the-cans in the various rows ing mechanism or divider into the stacking cham 10 ber, the rate at which cans would be packed in aration between the rows at this p'oint‘must -be _ the cases would be lowered. Consequently,.in ac eliminated as the cans are forced into the funnel cordance with the\modiiication, not only are the dit by the dropping oi' the upper rows oi’ cans and cans delivered more quickly into the stacking lt is desirable to reduce this movement to a mini chamber upon the opening of the gate mecha iid mum. lin the adjustment or the runways iii, pro nism, but provision is made whereby, under no . z vision is made ior raising the lower runways at circumstances, will the rate or packing by the the same time that thel upper runways'are lowered stacking mechanism and pier be lowered, due as to bring about a convergence between the up to the passage oi the cans through the distribut as they stand inthe stacking chamber.l Any sep _ per and lowermost runways. vTo edect the ad. ;iustment, each runway, as well as the upper guide ` _ above the top row of cans, is supported adjacent the detente di by means of a bracket _lill which .is carried by a rod itt. Each of these brackets _ ing mechanism. l s increase in the speed of entry oi the nent succeeding charge, tiener layer of cans from the storage rways into the stacking chamber can not be accomplished merely by increasing the gra nl has anarn'l- tilt which carries the pivot di for dient, or steepness, or inclination of the storage 25 the bell cranks til, liti. 'li'l'ieintermediate one oi' runways extending between the stacking cham ‘ the rive brackets lill is supported by the rod itt ber and the distributing or dividing mechanism. , at a hired elevation but the runways and guide ` _'l'his- would cause the cans to roll at too great a ` labove and below the central runway are adjust- _ speed along the storage runways so that they m. able toward and away from the latter. For this would hit against one another with such force that Stil purpose the yrod is' provided .with a series of they would be liable to damage. threads lill, lil, llt, and lili. The threads lill In addition, it would raise the intake eleva _ and llirnaybe righthand threads, -*for example, tion oi the machine to too great a height, and fur while the threads _l l2 and lili are lefthand or of thermore the funnel would have to be set at such dd opposite sense to the upper threads. Further a steep angle that it would become awkward for 35 more, the' threads i lll and H3 are double or are the operator to put the cases onto the funnel, and . of greater pitch 4than the threads lli and H2; it would be liable to interfere with the proper therefore, as the shafts |08 are rotated, the_ functioning oi’V the carton drop-off mechanism, »that is, the mechanism for lowering the illled ‘ threaded engagement between the _various series oi threads and the brackets -Ill'l will cause the two _carton from its horizontal position on the funnel 40 ' uppermost brackets to move downwardly andthe -~ to. vertical position. two lowermoist brackets Ato move upwardly and vice versa, depending upon the direction of- rota tion of the shaft |08. Furthermore, the rate o_f advance toward or recession from the central runway for the uppermdstand lowermost brack ets will be double, or at least materially greater than that for the two brackets adjacent the cen tral bracket. At its upper and lower ends the, 'I'he primary object of the modiñedform of our invention is, therefore, to overcome the above dif ñculties andprovidea packing machine which willhave the advantages mentioned. - A further aim of the invention is tov provide a can runway construction, particularly for the storage runways. whereby the cans will be com pelled to roll along _the same with their beads'in vto shaft |08 is suitably supported by bearings lillV alinement, thereby 'avoiding the possibility of and H5, respectively. It will be understood that a rod |08 and a series of brackets ID'ijwill be pro vided on each side of the runways and-adjust ment‘of the two sides should be effected _in unison _ to maintain the runways in proper planes. 4'I‘o insure uniform _adjustment of the two shafts, they may be provided with sprocket wheels H6r connected by a chain H1, and _either‘shaft may have a handwheel at its upper end or be adapted' 60 tovreceive a wrench. ’ The funnel _53 may be sup ported in any suitable way by the framework of the machine and may be replaced by funnels of different sizes when different sized cans and boxes are 65 ' used. _ . ' ‘_ _ _ Referring now to the modifications _shown’in Figs. 12 to 18, inclusive, and particularly to Figs. 12 and 1_4, for certain yclassesof work where par ticularly rapid packing is desired, it isV necessary to cause the cans to enter _the stacking chamber 70 more quickly when the detent, or gate mechanism, is opened. It will 'be understood that the cans on the storage runway are at rest when the gates are raised, and must be accelerated entirely by the comparatively gentle slope of the storagerunways i3, as shown in Fig. 1. More especially when the 45 having the bead of one can deface the label or 50 varnish on the body of an adjacent can by rolling in contact therewith. _ Another feature of the modification is to pro vides4 funnel construction -wherein the cans will 55 be maintained in axial Valinement with one an-` other as they are pushed through the funnel into the carton. This overcomes the difiiculty ' sometimes experienced, particularly with cans ‘Whose diameters are larger than their length, or where the machine operates at especially high speed,»of having the cans fall over on their ends as they are being slid in the direction of their axes through the funnel. ` A still further object of the modification is to 65 provide a funnel construction which is adapted _for ready removal `and the substitution of a fun nel of diiferent size when the adjustment of the machine, as previously described, is changed, in order to accommodate cans-of ditl’erent diameters. Another object of the modiñcation is to provide for the change-over of the packing machine so as to enable it to pack either a single tier or layer of cans in a case. or a plurality of tiers. as may be desired. ‘ 75 ` 9,197,924. 6 l2. while the supply of cans in feed line lli.. con 'I‘he features of the modined form o! our in- v vention by means of which the foregoing ad vantages are secured, will be understood from the following description: _ Referring nrst to Pigs. l2 and'14, .the can stacking chamber Il. and the can separating. or dividing, mechanism I2. are tinues without- interruption, the separating mech anism i2» will become choked with cans. It re- ' quires the attention of the operator of the ma chine to set the separating mechanism i2. again in proper operation. In order to avoid this, and subltmtially ` at the same time enable the machine to take full identical with those previously described; 'also the can stops l2. andtheir operating mechanism, and the detenta or gates and their actuating mechanism, which are indicated generally in Fig. l2 by reference numeral Il.: also the plung - ers l2. and their mounting. including arms lll.. |02. and Il.. In order to cause the next charge of cans todbe quickly moved into the stacking chamber after the operation of the plungermto push a preceding tier toward or into the case, and the gate mechanism has again opened, the storage runways i2. corresponding to storage runways il of Fig. 1 are made steeper, but shorter, the gradient of these runways being Asuf ilcient to impart rapid acceleration to the cans when the gate mechanism is opened. The dis charge ends of each oi these runways' connect with the shelves of the stacking chamber which advantage of the storage capacity of runways l2. and H0 in order to prevent a possible retarda tion of the rate oi packing of the machine, the 10 following mechanism is provided: Referring to Figs. 12 and 14, a short section |20 of the lowermost runway ||0- is pivoted at its' lower end and provided with a counterbalanc ing weight l2| which is adjustable in its posi tion on its supporting arm |22. The length of this runway is sumcient to hold a predetermined number of cans. say for example, 5 or 6, and the counterweight I2|, is Íarranged tov maintain the pivoted section |20 in its normal position until 20 such a time as cans may collect on runways I3.. and ill up to the point where the predetermined number of cans rest upon pivoted section |20. Then the section is depressed slightly thereby closing the contacts of an electric switch |23 25 which, through conductors |24, closes a circuit are at the same comparatively gentle _slope as ‘ through a solenoid |25. The lifting of the sol in the case of Fig. l, so that the angularity of enoid core shifts a horizontal bar |28 into the the funnel and of the carton and its supporting path of the cans entering the separating mech mechanism is not increased. anism I2. and cutting off the delivery of cans 30 The storage runwaysfll. are joined by storage extension runways ||0 which connect runways Il with the outlets of the distributor or dividing mechanism l2. which receive the cans from the single feed line runway il. and distribute them equally between the runways H0. The slope of the storage extension runways |I0 is approxi mately the same as that of the shelves in the can` stacking chamber Il.. thereto from feed line i5.. As soon as the cans move oil from pivoted section |20, it is returned to its upper position by means of counterweight 2|, opening switch contacts |23. This allows a spring |21 to withdraw the cut Off bar |26 t0 In operation, when the gate mechanism Il. opens, the cans on the steep storage runways I2. 40 move forward, pushing the cans ahead of them rapidly, due to the steepness of the slope. The several lines of cans separate at about the Junc ture between the runways ||0 and runways Il., leaving a gap at this point which is widened as 45 the cans move, forward into the stacking chamber -to form the next tier or layer. The cans in stor page extension runways I|0 move forward and take up this gap after the motion of the cans on storage runways i3. has ceased. The impact 50 of the cans when these gaps are closed, however, is not great, in spite of the large number and its original position, thereby permitting the feed ing of the cans to be resumed. ` ‘ Figure 14 not only shows a diagram of the cir cuit connections between switch |23. and the cut off operating solenoid |25, but also shows cer 40 tain details of the mounting of the balanced track section |20 and the switch |23; and it >also shows a transverse vertical section taken centrally through the upper part of distributing mechanism I2. and showing the details of construction of 45 the cut-off mechanism. The operating solenoid |25 of the cut-off is carried upon a bracket struc ture I2» which is mounted upon the front side plate of the distributing mechanism. The sole noid core operates cut-ott bar |26 through a ball crank lever |25’ and a compression spring |26'. The motion oi' the bell crank lever is transmitted so' cut-oi! bar |26 through this spring,»the righ. weight of the cans moving forward on storage Í to hand end of which bears against the collarl se runways ill, because the slope of these runways 55 cured to the cut-oi! bar. By this arrangement, if the solenoid happens chosen so as to prevent the cans from attain- « 55 is ing high velocity during this movement. to be energized at a moment when a can is pass In order to provide for an ample supply of ing the end of the cut-off bar, the bar being yield cans to be admitted to the stacking chamber Il. under all possible conditions of operation so that rate ci packing of the machine will never ' the be retarded by- the relatively slow movement of `the cans through the separating mechanism I2.. the storage capacity of extension runways ||0 is at least egualvto the storage capacity of runways es" II., and is preferably from one and one-half times -to two times as great as these runways. Because of the'greater length of the machine caused by this increased/storage capacity, the ‘right hand end of frame member Il. and the ingly actuated by means of spring |28’ does not dent or otherwise injure the 'end ~of the can, and 60 is thrown into cut-olf position as soon as this can has passed the bar. Adjustment .of counterweight y|2| is provided for not only to vary the number of cans re quired to operate the can cu -oiI' mechanism, but 65". also to permit of adjustment for diilerent weights of cans when the machine is adjusted for cans of different diameter. On account of the law ofF operation of the separating mechanism i2. which distributes every fourth can to the lowermost row, I2; are sllDDOrted by under normal operation of the apparatus, suc means of a post III which extends upwardly from Acessi've cans passing ‘over pivoted section |20 will the door to frame member Il». ` be spaced a considerable distance apart so that Should the storage runways Il. and ||l become usually not more than one can will rest upon the completely fined with cans because of an inter pivoted section at a given instant. . Hence it is 70; separating mechanism ruptionv in the operation of the packing plungers 2,127,924 impossible 'under normal Yoperation for section |20 to be depressed and stop the feeding of the cans. In the machine of Fig. l, runways I3 andthe shelves within the can stacking chamber consist of metal plates to which are attached guide rails consisting of steel angle bars, shown in section in Fig-8. Due to the -lack of rigidity and the variations which occur in the manufacture of these bars, itis substantially impossible Ato mount them and keep them in accurate gauge, that is. ‘in uniformly spaced relation throughout the length of the runways. The resultV is that as the cans roll along the runways the bead of one can will rub the body of the next can. This has a tendency to mar the label or the varnish nn ish of the can as the case may be. ` ` _ The resilient and yielding upper members |35 of the funnel contact with the uppermost row oi cans as they move over the Àuppermost --yieldingA flight |4| and deflect this row into contact with the next, thereby holding all ci the rows in con tact with each other and preventing any-of the f cans from becoming upset. In. addition, in order to keep the cans` of each horizontal row in contact with one another, especially when they are packed empty, ilexible steel tongue vmembers |42 are 10 mounted, one opposite each row at the right hand side of the tunnel. wl‘hese flexible resilient tongues deflect the respective rows oi? cans‘into contact with the left hand side ißtof the funnel.By means oi this' funnel construction, the cans M enter the carton as a compact mass which prop erly tits the icnlar site oi? carton which is lin accordance with the modified construction employed. ì of Figs. 12 and 13, howeven‘the guide rails llt ln order to provide tor the ready removal'ofï 20 and |29 are made of cold-rolled bars of substan Y one size tunnel and its replacement by a funnel tially rectangular and massive cross section so of diiierent size, a `vertical vbar it@ is secured by ~ that these bars areA comparatively rigid and can means of bolts Nt tothe upper frame member readily be mounted upon their supportingplates ' i'tll'and maintained in accurate gauge through itt oi the machine. This bar on its rear surface' ‘ is provided with a series oi spaced metal buttons out the length of both runways lit and its, and' itt, the shanks oi' which are anchoredy in the the gauge may be so nearly equal to the length bar and the heads. oi’ which are spaced slightly 25 of the cans that the two beads of each can will from the rear surfaceof the bar. be maintained in alinement with the beads of The funnel is provided along its right hand the adjacent cans and the marring oi' the can -vertical feed with a ilange ill, the edge of which 30 body is prevented. As shown ln Fig. 13, and also is slotted opposite each button |46, as indicated in Fig. 1‘5, guide rail |28 may be adjusted so as by refer-ence numeral M8 in Fig. 16 and also as to change the gauge of the rails to accommodate slmwn in dotted lines in Fig. 12. ~ ‘ cans of different lengths. This is accomplished. .lit the left hand side» of the funnel there is a by loosening holding screws |3| and shifting them vertical bar |49 similar to bar |43, but perma in slots |32. . y, " _ nently attached to the funnel itself ,instead oi In Figs. 15 and '16, the details of the funnel to the „frame of the machine. The upper and low 85, construction are illustrated. The bottom |33 and er ends of this bar |49 are removably secured re left hand side |34 of the funnel, as viewed in Fig. spectively to the frame members |45 and' lia by 12, consist of a single 'L-shaped piece of heavy " means of bolts |50. A10 gauge sheet metal and are relatively rigid. The lIn order tov remove@4 the funnel from the ma bottom may slope upwardly, as in Figs. 15 and chine, it is .only necessary to remove the four 40 12, or it may be arranged horizontally, depend# bolts I 50, all of which are on the left hand side -ing- upon the type oï can which the machine is of the funnel near the end of the machine' where to handle. The top of the funnel is yieldable they are readily accessible, and then slide the for a purpose which will presently appear, and funnel bodily to the' left, as vviewed in Fig. l2, for convenience is constructed of 'three spring thereby freeing the slots |40 of flange |41`from steel plates |35 which normally are biased down the buttons |40. A funnei‘of different size, but wardly at a vconsiderable angle, as indicated at. having a` similarly slotted flange |41 and 'a simi Fig. 15. The right hand side of the funnel |36," » lar bar |49 may then be placed upon the machine 50 while somewhat yielding, need not yield~ to a by, reversing the operation just described. 4 _ great extent. `It will be understood that the By means of the mechanism illustrated in Figs. carton or case to be filled with cans is held in 17 and 18, we have provided in the modified form horizontal position by the drop’ off mechanism of our invention for the changing of the stroke |37l with its mouth telescoped over the funnel. » Aof the plunger or pushers l2 and the actuation 55 The left hand flap of the carton engages a stop i of the can stops |50 and the gates or detents Sla, |38 and the right hand carton flap is deflected so _as to provide for operating. the machine to ‘by means of a guide |39 to prevent it frombe pack either a single tier or layer or a plurality of coming entangled with the gate operating mech- _ layers at-each cycle of operation of the machine. In these ilgures. we have shown mechanism for 60 As the rows of cans vare held in the stacking changing over a machine from two-tier packing chamber on the several supporting shelves |40. to single-tier packing.l or vice versa.A That is to each row is spaced `vertically from the next row say, the plunger may be made to operate with one and as the cans are‘ slid forward into the funnel short stroke and one long stroke for each revolu ' by the pushers 52a, the second row is lowered into tion ofthe operating cam, or with only a single 65 contact with the lowermost row, 'the third row long stroke for each revolution of this cam. l 65 `with the second and the fourth row with the .For this purpose, the motor 51» is connected third. To accomplish this and prevent liability with shaft 06. of the speed reducing gear .50a of the cans being upset due either to high speed by means of a change-speed 'drive which, in the ad anism tilt.` . . v _ of operation, or to the fact that the cans are , example illustrated, consists of a pair of vstepped _' ` larger in diameter than their height, each of the pulleys |5| and |52 together with a driving belt 70 shelves |40 is provided with downward?? yielding flights or extensions |4| which project from the ' In considering Fig. 17: itV will 'be helpful to also v side edges of the shelves |40 into the funnel ' consider Fig. 9, as the latter f_lg'ure shows parts member. These flights I4 i are preferably made of the machine which have been omitted from 75. or' highly flexible resilient spring steel sheets. Fig. _17 _for the sake of clearness. The operating 75" 9,121,924 . -cam 54. is provided with a slotted cam track Il. -which engages roller S41 on arm 95|. which is the 'actuating arm for the pushers 52,.. pusher, it will be understood that when packing This cam additional layers in a case, for example, three, the operating cam will be provided with two re track, as may be seen from Fig. 18, is provided with a high crest formation which .imparts the long stroke to the pushers 52., and a low crest formation |55 which imparts the short stroke to the pushers. When it is desired to eliminate the short stroke so that the pushers will make only a -IO single long stroke during each revolution of the cam, crest formation |55, which is secured to the body of cam 54g by means of screws |56, is re moved, leaving a straight cam formation |51 which constitutes a continuation of the dwell |58 of the cam. When the short stroke is eliminated, it is also necessary to prevent the operation of the gate mechanism and desirable to avoid operating the can stop mechanism. The operation of these two mechanisms is controlled by means of cam for mations 19. and 63s, respectively. Roller 80. car ried by armlh actuates the gate mechanism 5|., `and roller 64. carried by arm 65a actuates the .can stop mechanism. Arm 6551s secured to shaft 56. to which a shorter arm` 61a is also fixed, this arm being connected by means_of a link 68a to the cam stop mechanism. Operating cam 54» is provided with a second removable section |59 which is removably at ,tached to the cam by means of screws as indi cated in Fig. 18. 'I'he removal of section |59 changes the configuration of both cam formation 18. and 63. by creating a, valley |60 in cam forma tion ‘.lßrand a valley |6| in cam formation 63., both of which are opposite the removable crest section |55 of cam track 93a. When it is desired to eliminate the short stroke of the pushers from the operation of thema chine, crest section |55 is removed, and remov able section |59 is inserted, thereby eliminating the valleys |60 and |6| and preventing the sec ond operation of the gate and can stop mecha nism. At the`same time the belt |53-is shifted so as to increase the speed of rotation of the op eratingcam 54a. This enables the packing ma chine to packfcases containing only a single tier of cans at the same rate as when operating to pack cases containing a plurality of tiers of cans. That is to say, the machine packs the same num ber of cans per mimnute whethervthe cans are packed one layer to a case, or two or more layers .to the case, thus' enabling the packing machine to perform its work without interfering with the movable crests |55 and two removable sections |55, instead of one of each, as illustrated in the drawings. . . The intended mode of operation of the machine has been suillciently fully set forth in connection with the detailed description of the various por tions of the same so that a general résumé of 10 operation is believed to be unnecessary. While illustrative forms of the invention have been set forth in considerable detail, it is to be understood that various changes and modifications may be made in the construction of the parts and 'the 15 arrangement disclosed without departing from the general spirit and scope of the invention as defined by the claims. This application is in part a continuation of the applicants’ copending application Serial No. 20 505,282, filed December 29, 1930 (owned by the same assignee as the present application) which issued on August 25, 1936 as Patent 2,052,513. We claim: l. A machine of the class described comprising the combination of a packing mechanism includ ing means for stacking cans in a plurality of superposed rows to form a charge and ejecting mechanism for discharging the charge into a case, the stackin-g mechanism being adjustable for cans of different diameter, and mechanism for receiving cans from a single line and distrib uting them to the superposed rows of the stack ing means comprising a casing having an open ing for the reception of cans delivered to said machine and a plurality of channels below said opening and connected respectively to the super posed rows of the packing` mechanism, means centrally disposed beneath said opening for di recting successive cans passed through said open 40 ing into a different one of said channels, and means for varying the size of said opening to ac commodate cans of different diameter while main taining the. centralized relation betwen said open 45 ing and said can directing means, 2. In a machine ofthe class described a can stacking chamber, means for delivering cans in rows to said chamber, and movable stop mech anism at the end of said chamber for arresting the cans delivered thereto comprising a pair of 50 spaced parallel rods opposite the ends of said rows, a stop member for each row movable sub stantially in line therewith, each of said mem ~ speed of operation of the*can labelling machine , bers having a can-stopping face.extending trans or can processing equipment with which it maybe versely thereof at its inner side and a supporting 55 connected to receive cans. ' ' The processing equipment and the can labelling machine have a definite speed of operation, that is to say, they deliver cans at a predetermined 4number per minute and it is desirable to maintain this rate whether the cans are being packed one layer to a case or several layers to a case. Where the cases are packed only one layer or tier to the case„it is necessary to make the pushers 52. of the packing machine ' operate twice as fast as when the machine is packing two layers to a case, or three times the speed as when the machine is packing three layers to the case. This increase in speed is necessary because the operating cam il. makes one ,revolutionfor each case packed, regardless of whether several layers are being packed in the case or only a single layer. Although we have illustrated an operating cam arm extending from its outer side and pívoted to ' both of said rods, and means for supporting said spaced parallel rods including an arm pivoted to each of said rods, said arms being mounted for oscillation about centers opposite the ends of said rows and spaced apart 'a distance equal to the spacing of said rods whereby when said stop mem bers are moved the can-stopping faces thereof will maintain their transverse position at right angles to the direction of advance of the `Acans in said rows. > 3. In a machine of the class described a. can stacking chamber, means for delivering cans in rows to said chamber, a plunger for electing cans from said- chamber into a packing case, movable 70 stop mechanism at the end of said chamber for arresting the cans delivered thereto comprising a pair of spaced parallel rods extending vertically opposite the ends of said rows, the axes of said having cam formations which- are adapted to im part only one short and one long stroke to thev rods lying in s_vertical plane perpendicular to 75 2,127,924 9 . said rows, a stop member for each row movable substantially in line therewith having a face ex- tending transversely thereof at its inner side, each of said members having'a supporting arm ex tending substantially at right angles from its outer face and pivoted to both of said rods, and means lfor supporting said spaced parallel rods in cluding an arm pivoted to each of said rods, said arms being mounted for oscillation- about centers’ opposite the ends of said rows and spaced apart a distance equal'to the vertical spacing of said rods whereby when said stop members are moved the can-stopping faces `thereof will maintain _ the gate mechanism, a storage extension having a more gentle slope whose length is atleast equal to that of theA steep section; and -a distributing mechanism 'for receiving cans- from a can feed line and distributing them to said extension. '7. In a machine of the class described a can ' stacking _chamber having a plurality’ of _shelves arranged therein one above the other for receiv ing eaph a row of cans to_ form a tier or layer, means for ejecting Asaidy cans into- a case, 10 inclined superposed runways f_or delivering cans to said shelves,.gate"mechanism for admitting cans from the runways to said shelves, said run their transverse position at right angles to the y 16 direction of advance of the cans in said rows. ways being steeply inclined so as~to cause the l cans thereon to bemoved quickly into the can and means for shifting said stop members c_om stacking chamber upon the opening of said gate 15 prising a link adapted to be moved longitudinally in timed relation to said plunger, and means for operatively connecting said link to 'one of Asaid 20 arms., mechanism, storage extension runways connect ed to said steeply inclined runways, and a dis tributing mechanism forv receiving Vcans from` .a can feed line including movable can-deflecting 20 ute cans passing therethrough to different ones 4. In -a machine of the class described alcan‘ means movable to diii’erentf positions to distrib' stacking chamber having a plurality oi' shelves arranged therein one above the other ior re ceiving each a row of cans to iîorin> a 'tier or layer to be ejected therefrom into a case, in clined superposed storage runways for _deliv ering cans to said shelves, gate mechanism for admitting cans from the runways to the can stacking chamber, said storage runways having two sections differing in slope, the section having the greater slope being adjacent the gate mecha nism‘whereby upon the opening of said gate 35 mechanism the cans on said storage runways to form the next tier move quickly into the stach ing chamber. _ ' ' 5. In a machine of the class described packing mechanism including a can stacking chamber vhaving a plurality of shelves arranged therein 'so `of said extension runways, a cut-oil' for stop- l ping the i’iow of cans to said distributing mech anism, and mechanism-associated withone of said storage extension runways for actuating 25 said cut-ofi" to prevent cans on said runways from' backing up into the‘distributing mecha nism. ~ i 8.4In a _machine of the ,class "described a can stacking chamber having a plurality of verti 30 caily spaced shelves, means for deliveringa row of cans to each shelf to form a tier or layer for a carton, a funnel-shaped member disposed ad jacent said chamber, means ior supporting a case with its mouth telescoped upon the smaller 35 end oi 'the tunnel-shaped member, means ior` ` electing a tier or layer of cans from the stacking one above the other for receiving each a row ai’ cans to form altier or layer to be ejected there „chamber through the funnel-shaped member into. the case, yielding means arranged within said funnel member i'or ‘holding the cans or each irom into a-case, means for ejecting the cans, .inclined superposed storage runways ior deliv ering cans to said shelves, and Agate mechanism horizontal row in contact with'one another, and yielding means forming a part oi' the _funnel member ior holdingthe superposed cans of the ior admitting cans from the runways to the can stacking chamber, said storage runways having several layers in contact withone another' as a steeply inclined section adjacent the gate mechanism of a suiiicient'length to hold a charge oi cans whereby upon the opening oi said gate' mechanism, the cans on said storage runways' to form the next tiermove quiclrly into the staciring chamber having a plurality oi’ verti through said distributing mechanism being lower ing chamber through the funnel-shaped member they pass through said funnel into the carton. 45 9. lin a machine oi the class described a can vcally Vspaced shelves, means ior delivering a row oi‘ cans to each sheli to form a tier or layer stacking chamber, storage extension runways for a carton, a funnel-shaped member disposed 50 connected to said steeply inclined runways, and adjacent said chamber, means for supporting' a a distributing mechanism for receiving cans from case with .its mouth tele'scoped1 upon _the smaller a can feed line and distributing them to said 'end of Vthe funnel-shaped member, means for ' 55 storage extension, the rate of passage of cans ejecting a tier or layer of cans from the stack 55 than the rate at ` which cans are packed in a single carton by said packing mechanism and - into the case, plate spring means _ arranged within said funnel member for holding the cans the storage capacity of said storage extension 60 being sufûcient to prevent the, rate of packing zof each horizontal row in contact with one an other, and yielding means- forming apart of the 60 from being` retarded by the operation of said funnel member for holding the superposed cans distributing mechanism. _ 6. In a machine of the class described a can ' stacking chamber having a plurality of shelves f arranged therein one above the other for receiv ing each a -row of cans to form a 'tier or layer to be ejected therefrom- into- a case, in clined superposed runways for delivering cans to‘said shelves, gate mechanism for admitting .of the several layers in contact with one anotherv as they pass through said funnel into'the carton. 10. In a machine of the class described a can stacking chamber lhaving 'a plurality of verti-v 65 cally spaced shelves, -means for delivering a row of cans to each shelf toi'orm a tier or layer for a carton, a funnel-shaped member disposed said chamber, means for supporting a cans from the runways to _the can stacking cham -_ adjacent case with its mouthtelescoped upon the smaller ber, ~said runways having a short section adja-`~ cent said gates which is adapted to hold a full end of'the funnel-shaped member, means for > tier of cans and which is steeply inclined so as to‘ cause the cans thereon to roll into the stacking chamber promptly upon the opening of _ ejecting a tier or-layer oi' can'g _from the stack ing chamber through the funnel-shaped member into the case, a flexible resilient tongue mounted .to engage one end of'each row of cans and co _' ' .10 2,127,924 operate with the opposite wall of the funnel shaped member to maintain the cans of each horizontal row in contact with one another, and yielding means forming a part of said funnel shaped member for holding the superposed cans of the several layers in contact with one another as they pass through the funnel into the case. 11. In a machine of the class described a can stacking chamber having a plurality of verti 10 cally spaced shelves, means for delivering a row of cans to each shelf to form a tier or layer for a carton, a funnel-shaped member disposed adjacent said chamber, means for supporting a case with its mouth telescoped upon the smaller `end of the funnel-shaped member, means for ejecting a tier or layer of cans from the stack ing chamber through the funnel-shaped member into the case, the funnel-shaped member having downwardly yielding ilights therein whereby the 20 cans on the said shelves are lowered into con tact with one another in passing through the funnel, yielding means arranged within said fun nel to engage and maintain the cans in each of the respective horizontal rows in contact with 25 one another`~ as they move‘over said downwardly yielding flights, and yielding means forming a part of said funnel for holding the superposed cans of the several layers in contact with one another as they pass from said flights into the carton. 12. In a machine of the class described a can stacking chamber having a plurality of verti cally spaced shelves, means for delivering a row of cans to each shelf to form a tier or layer 35, for a- carton, a funnel-shaped member disposed adjacent said chamber, means for supporting a case with its mouth telescoped upon the smaller end of the funnel-shaped member, means for ejecting a tier or layer of cans from the stack 40 ing chamber through the funnel-shaped member into the case, the funnel-shaped member having downwardly yielding flights therein whereby the cans on the said shelves are lowered into con tact with one another in passing through the 45 funnel, a flexible resilient tongue mounted to en gage one end of each row of cans and cooperate with the opposite wall of the funnel-shaped member to maintain the cans' of each horizontal row in contact with one another as they move 50 over said downwardly yielding flights, and yield ing means forming a part of said funnel-shaped member for holding the superposed cans of the several layers in contact with one another as the cans pass from said flights into the carton. 13. In a machine of the class described means 55 for stacking cans in a pluralityof rows arranged one above the other, means for shifting said cans in the direction of their axes, and an op erating mechanism for said machine adapted to 60 impart a plurality of operations to said shifting means during a single ‘cycle of operation, said operating mechanism comprising a cam member having a changeable cam surface whereby the number of operations of said - shifting means during a single cycle of operation may be altered, constant speed power means for operating said machine, and a change-speed drive for opera tively connecting said power means and said l cam member for varying the speed of said cam 70 inversely to the number of operations imparted thereby to the’ shifting means during a single `cycle, so as to maintain constant the number of cans shifted >by the shifting means in a given period of time regardless of the number of shift 75 ing- operations occurring during a cycle. 14. In a machine of the class described means for stacking cans in a plurality of rows arranged one above the other, means for shifting said cans in the direction of their axes, and operating mechanism for said machine adapted to operate said shifting means twice and to different ex tents during a single cycle of operation, said op erating means comprising a cam member hav ing a changeable cam surface whereby the 0p eration of the machine can be altered to operate 10 said shifting means only once during a single cycle of operation, constant speed power means for operating said machine, and a change-speed drive for operatively connecting said power means and said cam member for varying the _ speed of said cam inversely to the number of operations imparted thereby to the shifting means during a single cycle, so as to maintain constant the number of cans shifted by the shifting means in a given period of time re gardless of the number of shifting operations occurring during a cycle. f 15 In_ a machine of the class described a can stacking chamber for stacking cans in a plurality of rows arranged one above the other, can stor age runways arranged to supply cans to the re spective rows of said stacking chamber, gate mechanism for admitting cans from the runways into the stackingchamber, means for shifting the cans in the stacking chamber in the direction 30 of their axes, and operating mechanism for said machine adapted to impart a plurality of op erations to said shifting means and gate mech anism during a single cycle of operation of the machine, said /operating mechanism comprising 35 a cam member having formations thereon for operating said shifting means and said gate mechanism, said cam formations being change able whereby the number of operations of said shifting means and of said gate mechanism during a single cycle of operation may be altered, constant speed powerfmeans for op erating said machine, and a change-speed drive for operatively connecting said power means and said cam member for varying the speed of said cam inversely to the number of operations imparted thereby to the shifting means during a single cycle, so as to maintain constant the number of cans shifted by the shifting means in a given period of time re gardless of the number of shifting operations occurring during a cycle. 16. In a machine of the class described, a can stacking chamber in which cans are stacked in a plurality of superimposed rows, reciprocating means for ejecting said rows of cans from the can-stacking chamber in the direction of their axes, and operating mechanism for said ejecting means including a cam having a portion of its surface shaped to impart a stroke of fixed length to the reciprocating ejecting means, another por tion of said cam surface being changeable to a contour such that a stroke of different length may be imparted to said ejecting mechanism. 17. In a machine of the class described, a can stacking chamber having a plurality of shelves arranged therein one above the other for receiv ing each a row of cans to form a tier or layer, means for electing said cans into a case, in clined superposed runways for delivering cans to said shelves, gate mechanism for admitting cans from the runways to said shelves, and a dis tributing mechanism for receiving cans from a can feed line including movable can-deliecting means movable to different positions to distrib- 75.