US2523667A

US2523667A - Packaging machine

Info

Publication number: US2523667A
Application number: US589172A
Authority: US
Inventors: Charles E Palmer; Frank J Kostohryz
Original assignee: FRANK D PALMER Inc
Current assignee: FRANK D PALMER Inc
Priority date: 1945-04-19
Filing date: 1945-04-19
Publication date: 1950-09-26
Anticipated expiration: 1967-09-26

Description

Sept. 26, 1950 c. E. PALMER ET AL PACKAGING MACHINE Fild April 19. 1945 6 Sheets-Sheet 1 fnz/eizi or's C'Aarles E Palnzef' A1 Sept. 26, 1950 c. E. PALMER ET AL PACKAGING MACHINE 6 Sheets-Sheet 2 Filed April 19, 1945 c. E. PALMER ET AL 2,523,667

Sept. 26, 1950 PACKAGING MACHINE Filed April 19; 1945 e Sheets-Sheet 5 W iw Sept. 26, 1950 c. E. PALMER El AL PACKAGING MACHINE 6 Sheets-Sheet 4 Filed April 19. 1945 fiai/enl or's' C/ar/es E Palmer" C. E. PALMER ET AL PACKAGING MACHINE 6 Sheets-Sheet 5 Sept. 26, 1950 Filed April 19, 1945 Calle z ipa r5 flan/ Jffasfc/zyy 5 7 Lida Sept. Z, 1950 c. E. PALMER Er AL PACKAGING MACHINE 6 Sheecls-Sheet 6 Filed April 19, 1945 nvenl ars" C/iarles E Palmer Iiank Jmsiorjyj l 'atenlecl Sept 26,

UNITED STATES TENT OFFICE Gharles- E. Palmer and Frank J. Kostohryz, Chi-' cago, Ill., assignors to Frank D. Palmer, Incor-' pora'ted, a corporation of Illinois Application April 19, 1945, Serial No. 589,172

6 Claims.

This invention relates to a packaging machine, and it has particular reference to a machine for applying an inner receptacle to a package consisting of a receptacle and a wrapper enclosed more or less fluid content.

As an example, it may be explained that in the packaging of cheese, an open topped receptacle having a liner covering the inside of its bottom and side walls and extending upwardly beyond the top edges of the side walls, is fed into position under a filling nozzle which delivers molten or fluid cheese into the lined receptacle. Thereafter the filled lined receptacle is moved to another station or through equipment which'clo'ses the upwardly extending portions of the liner over the top of the content.

- 2 Figs 12 and 13 are perspectives illus trating successive steps in the formation of th completed package as efiected by the mechanism" shown.

The operations performed by the apparatus are illustrated in Figs. 10 to 13 inclusive. As there shown, a package comprising a paper board receptacle 3'! contains a content wrapped in a liner 3%. The liner 38 may or may not be sealed but it should be closed so as to effectively retainthe content which, in the case of packaging of cheese,

ment for applying another receptacle tothe package to cooperate with-the open topped receptacle to form a completely closed package, the two re-' ceptacles being made of paper board or other suitable material which will afford a-satisfactory degree of protectionfor the thin and more flexible liner or wrapper which encloses the content.

The equipment may, of course, be adapted to the packaging of materials other than cheese, which is mentioned only for illustrative purposes.

, The main objects of the invention are to provide a relatively simple and inexpensive machine for performing the above described packaging operation; to provide such equipment which will be capable of operating at a speed which is consistent with the ability of an'attendant to supply carton blanks and to remove the completed packages from the equipment; and to provide a machine of the character-indicated which can be readily operated by a substantially unskilled person, and which will be safe for such a person to operate.

Other objects and advantages of the invention will be understood by reference to the following specification and accompanying drawings (six sheets) wherein there is illustrated a machine embodying a selected form of the invention.

In the drawings,

Fig. 1 is a plan;

Fig. 2 is a front elevation;

Figs. 3 and 4 are sections on the lines 3-3 and 6-4 respectively of Fig. 2, the position of the parts in Fig. 4 being changed from the position shown in Figs. 2 and 3;

Fig. 5 is a fragmentary section corresponding to a portion of Fig. 4 but showing a changed position; v

Fig. 6 is a section on the line 6-6 of Figs. 1 and 3;

. Fig. 7 is a section on the line 'll, of Fig. 6; v Fig. 8 is a-section on the line 8-8 of Fig. 4; Fig. 9 is a fragmentary section on theline 99 of Figs. 1 and 2,and V may be in a semi-liquid state. A package comprising the receptacle 3i and wrapped content 38 is delivered from the filling machine and liner closing mechanism or station, in normal upright position; that is to say, with its open side facing upwardly. The apparatus forming the subject matter of this application operates to first invert the package to the position illustrated in Fig. 10,

and to'deposit the liner enclosed content centrally o'na blank; 39 which is'suitably formed and scored to facilitate the formation of a receptacle around the wrapper enclosed package content.

The wrapper enclosed package content 38 is deposited on the blank 39 in such a manner that the weight and downward force of the wrapped content will effect initial breaking of the crease or fold lines of the blank and partial folding of the side and end wall panels 56 and il respec'-' tively of the blank upwardly over the sides of the wrapper enclosed package. The mechanism completes the foldin of the side and end wall panels and the package, now consisting of the wrapper enclosed content 38 and the box formed from the blank as, is moved upwardly into the recaptacle 3? from which the wrapper enclosed content 38 was first discharged. The result is the production of a package comprising the wrapper enclosed content 38 and a slip box consisting of the box formed from the blank 39 and the outer box 3i, as shown in Fig. 13.

The apparatus shown in the drawing comprises a supporting table or bench I which is suitably supported by legs 2, the top l and legs 2 being united and braced in any desirable man-.

ner.

At the rear of the table I there is supported a pulley 3 which supports one end of a continufously traveling conveyor belt 4. Packages 5 are delivered to the apparatus by the belt 4, the packages being delivered to angle iron or similar guides 6 arranged to receive the opposite end portions ofthe package (see Figs. 1 and 3). The guide members 6 have their receiving end portions curved downwardly as shown at l to facilitate movement of the packages from the belt 4 to the said guides, side portions 88 of the said guides being extended rearwardly to embrace the opposite ends of the package while they are on the conveyor belt so as to insure centering of the same for delivery to the horizontal guide portion 6.

Adjacent the front ends of the guides 6 there is located a carriage 9 which consists of a bottom plate H] and a front edge upwardly extending flange Said carriage also includes end plates, such as indicated at |2 (see Figs. 1, 2 and 6) each of which have outwardly extending bosses l3. The bosses l3 are suitably bored out to receive outwardly extending shafts M to which the carriage bosses l3 are pinned or otherwise rigidly secured.

The shafts M are journalled in elongated bearings |5 formed at the upper ends of arms I6 which are mounted on a rotatably supported shaft H. The shaft I1 is supported by suitable bearing brackets l8 which are formed integrally with normally stationary gear segments l9 which extend upwardly from the table at opposite sides of the apparatus. The gear segments l9 and their bearing portions l8 are suitably mounted on the table I by means of angle iron members 20 which are fastened to the top of the table and to the segments l9. The conveyor 4 operates through its frictional engagement with the bottoms of the packages thereon to feed said packages 5 along said guide chutes 6 and on to said carrier 9, the forward movement of the packages being limited by the upstanding front edge flange II of the carrier. The carrier with a package thereon is then rocked about the axis of the shaft I! and also rotated about the axis of the shafts M to invert the package and deposit it on a blank which is to form the bottom receptacle of the completed package.

For the purpose of stopping the forward movement of the packages on the guides 6 during the time that the carriage 9 is being advanced to deposit the carton on a box blank, there is provided a holder or gripper 2| in the form of a plate extending across the top surface of the package 5 on the front ends of the guides 6. Said gripper 2| is secured at its ends to arms, such as indicated at 22, which extend rearwardly and are secured to a shaft 23, which is rotatably mounted in suitable bearings carried by bracket plates 24 which support the guides 6. The gripper member 2| is rocked so as to clamp the underlying box 31 to its supporting guides '6. The ends of the box are stiff enough to permit such locking of the package without reliance on the application of any pressure on the liner enclosed content of the package.

To rock the gripper 2| as aforesaid, the shaft 23 is rocked by suitably timed cammed mechanism so that the gripper 2| will be moved down into gripping engagement with the top of the package 5 thereunder during the time that the carriage 9 is being advanced as aforesaid and returned to its receiving position, as shown in Fig. 3.

The cam actuating mechanism for the gripper 2| is best shown in Figs. 2 and 9. As thereshown, the shaft 23 has secured to it an arm 25 which has its free end pivoted to a vertically extending connecting rod 26, the lower end ofwhich is adjustably connected as indicated at 21, to the free end portion of an arm 28 which is pivotally mounted as shown at 29 on a portion of the supporting frame structure.

The arm 28 is equipped with a cam engaging roller 30 which engages the periphery of a cam 3] carried by a cam shaft 32 which is journalled in suitable supporting brackets 33 mounted on base plate of the machine. driven at a predetermined speed by means of a The cam shaft is suitable driving motor 94 and a transmission chain 35 which engages suitable sprockets carried by the motor shaft and the cam shaft.

A spring 36 connected between the free end of the arm 28 and the base plate of the machine serves to hold the cam engaging roller 30 in engagement with the cam 3|. The cam 3| is such that the gripper 2| is elevated as shown in full lines in Fig. 9 for only a short time interval during which a package is fed from the guides 6 to the carriage 9. During the remainder of the cycle of operation of the machine, the gripper is pulled down into gripping engagement with the package thereunder by reason of the tension of the spring 36.

The arms l6 which support said carrier 9 are rocked with the shaft through the agency of an arm 42 which, in this instance, is formed integrally with one of the arms l6, the lower end of said arm 42 being connected by means of an adjustable link 43 to the upper end of a lever 44 which is pivoted intermediate its ends on a shaft 45. The shaft 45 is suitably supported by means of brackets, such as indicated at 46, carried by the supporting frame of the machine. The lower end of the arm 44 is provided with a roller 41 which engages the periphery of a cam 4.8 carried by the cam shaft 32. A spring 49 tensioned between a portion of the supporting frame structure 2 and a portion of the arm 44 serves to maintain the lower end roller 41 in contact with the cam 48 and to effect rocking of the arm 44 as permitted-by the cam 48 which is keyed to the rotating shaft 32.

During the rocking of the arms I6 and the carrier 9, the carrier is rotated about the axis of its end shafts l4. Such rotation of the carrier 9 is effected by means of the stationary gear segments |9 which mesh with gears 59 carried by the outer ends of the respective shafts I4. The starting position of the arms l6 and carrier 9 is shown in Fig. 3 and the rocked and inverted position of these parts is shown in Fig. 4.

In order that the package in the carrier will be retained therein during the movement of the carrier from its receiving position to its inverted discharge position, means are provided for gripping the package while it is in the carrier. This gripping means comprises, at each end of the carrier, a member 5| which, in its gripping position, is in effect a continuation of the end wall vl2 of the carrier. The gripping member 5| is carried by a pair of arms 52-52 which are bowed outwardly so as to clear certain elements of mechanism which will-presently be described, and the lower ends of said arms are pivotally mounted on a pivot rod 53-which is supported by a bracket 54 attached to'the end member |2 of the carrier.

Torsion springs, such as shown at 55, are provided for yieldingly urging the gripping member 5| towards the end of the package delivered to the carrier. The gripping members 5| have narrow ledges 56 which are adapted to extend over the upper edge of the .end of the package and sharp tooth 51 to more or less impale the package end when the grippers are in gripping position, as shown in Fig. 6. Each gripper is also provided with a clip element 58 which engages the rear side of the package to assist in holding itagainst the front ledge ll of the carrier.

The grippers 5| are controlled by cams, such as indicated at 59, there being one such cam associated with each end of the carrier and said cam being keyed or otherwise suitably secured to a tubularshaft 60 disposed about the shaft and journalled thereon by means of end bearings, such as shown at 6| in Fig. 6. The tubular shaft 68 and its cams 59 are adapted to be rocked by means of an arm 62 rigidly connected to the tubular shaft and extending downwardly therefrom. The lower end of said arm 62 is connected by means of an adjustable link 63 to the upper end of an arm 64 which is pivoted intermediate its ends on the said shaft 45. The lower end of said arm 64 is provided with a roller 65 which engages the periphery of a cam 66, which is keyed to said cam shaft 32 so as rotate therewith. A spring 61 tensioned between the upper portion of the arm 64 and a suitable accessible portion of the wardly and are provided at their upper ends with forked portions 13 (see Fig. 4) which fit around sleeves 14 which are horizontally slidably mounted on the bearing members |5 (see Fig. 6).

The sleeves 14 are keyed to the bearing members l5 so as to be held against rotation while being longitudinally slidable as already indicated. At their outer ends, the sleeves 14 are equipped with radially outwardly extending pins 15 which are adapted to be engaged by the forked bell crank arm ends 13 for effecting outward movement of the sleeves as an incident to rocking of the earns 59. At their inner ends, the sleeves 14 have mounted thereon cams, such as indicated at 16, the said cams having central bosses 11 which fit snugly on the sleeve 14 and through which bosses fastening screws, such as indicated at 18, are threaded for holding the cams in fixed relation to the sleeves M. The outer ends of the cam bosses 11 thus constitute shoulders on the sleeves, and such shoulders are adapted to engage pins 19 which extend inwardly from the arms 520i the end grippers 5|.

When the cam 59 is'adjusted to the position shown in Fig. 3, thebell crank

arms

69 and 12 are rocked in such a manner as to move the sleeves 14 outwardly whereby the gripper arms 52 and the grippers 5| are moved outwardlyto. an open position as best shown inFig. 2. Such outer movement of the grippers is against the tension of the torsion springs 55. V

The cam 66 which operates the cam 59 is s designed as to permit the grippers 5| to be closed against the package ends immediately after the package is delivered to the carrier, the grippers 6 to, such registration being facilitated by the pic?- vision of a rear stop 83 and suitable side guides 84.

A vertically movable member 85 is centrally aligned with the die plate opening 8 I Said member 85 is carried by a post 86 which is vertically slidably mounted in suitable supporting brackets 81-81 carried by the supporting frame structure. In the startin position of the apparatus, as shown in Fig. 3, said vertically movable member 85 has its upper surface slightly above the surface of the die plate 80 so that the box blank 39 initially rests on said member 85, as shown in Fig. 3.

The vertical movement of the post 86 and its head member 85 is controlled by means of a cam 88 which is secured to the cam shaft 32 so as to rotate therewith. Said cam 88 acts against a roller 89 carried by an arm 90 which is pivotally secured at one end, as indicated at 9|, to a suitable bracket carried by the main frame structure, the other end of said arm being forked and slotted, as indicated at 92, to embrace the ends of a pin 93 which extends diametrically through a portion of the shaft 86. The spring 94 is tensioned between a portion of the arm 90 and the bed plate of the machine, as best shown in Fig. 3.

. The cam 88 is operative to effect upward move- When the package is delivered to its inverted.

7 position, as shown in Fig. 4, the wrapped package remaining in such closed position until the package and the carrier are moved to their inverted positions as shown in Fig. 4. The grippers 5| are held in their closed position so that the receptacle 31 will be held in its inverted position as shown in Fig. 4, until just before the gripper is to be returned to its receiving position.

,The table is provided with a die plate 89,

preferably of metal, the said die plate having an opening 8| which is registered centrally with the content tends to drop out of the box 31, this being especially true in respect of a non-rigid package content which does not have sufficient frictional engagement with the side walls of the box 31 to prevent its dropping out of the inverted box.

The main resistance to the escape of the wrapped package content from the box is the vacuum effect which would be produced in the box upon downward movement of the wrapped package content. In order to overcome such vacuum resistance to'discharge of the wrapped package content, and to otherwise expedite the movement of the wrapped content out of the box, the boxes areprovided in their top walls with inwardly depressible ears 95 which are partially slit from the top wall of the box 31 and hingedly connected thereto. The mechanism is further providedwith means for pressing said cars 95 inwardly to thereby provide an opening for permitting air to enter the box behind the outwardly moving wrapped package content. The means for depressing the ear 95 is best shown in Figs. 4, 6 and 7. As there shown, said ear depressin means comprises at each end of the carriage, an arm'96 which is secured at one end to a shaft 91 journalled in suitable bearing legs 9898 which dependifrom the bottom ID of the carrier 9.

The upper end of each of said arms 96 is equipped with a roller 9-9 which engages the periphery of the adjacent cam 16 whereby, when the carrier is turned degrees about the shaft l4,

said arm 96 will be rocked outwardly about the axis of the shaft 91,. Said shaft 91 also has secured to it an arm I09 which is formed with alaterally extending toe |ll| which is arranged to be engageable with the adjacent inwardly depressible car 95 in the box 31 (see Figs. 4 and 7).

It should be observed that the inward pressure exerted by the ear 95 on the wrapped package content is not necessarily relied upon to positively force the package out of the box 31 since said wrapped package content would readily drop out of the-box by reason of its weight when the box is vented as by means of the inwardly pressedear 95. The soft condition of the wrapped package content precludes any frictional engagement between'the wrapped package content and the side walls of the box 31 which would prevent escape of the wrapped package content from the box.

At about the time that the box 31 arrives at its inverted position, the plunger head 85 begins to-move downwardly by reason of the spring 94 and the formation of the cam 88. The weight of the wrapped package content is normally sufficient to cause the box blank 39, which is prescored for folding alonglines which will approximately coincide with the bottom corners of the wrapped package content, to fold at said corners as an incident to its downward movement.

Initial breaking of the fold lines of the blank 39 is insured by timing the downward movement of member 85 so that at the time the liner enclosed package content comes into engagement with the central panel of the blank 39, the member 85 will be spaced downwardly from the top surface of the die plate to the extent of about onefourth ofan inch; the blank 39 will then be supported only by engagement of its outer marginal portions with the top of the die plate so that the relatively small force of the liner enclosed package content (for example, about 2 lbs.) will be adequate to break said fold lines and cause the blank to catch up with the descending member 05. The weight of the package is sufficient to continue the movement of the package through the die plate opening while also maintaining the package in engagement with said descending member 85, to thereby continue the folding of the side and end

walls

40 and 4| of the blank 39 to a partially folded position.

The die opening 8| is of such dimensions that it does not fold the side or end

wall portions

40 and 4| of the blank 39 tightly against the sides of the wrapped package content and separate, positively actuated folding means are provided for this purpose.

The side wall folding means referred to, comprises side and end folderplates' I 02 and I03 respectively, each of which is pivoted near its lower edge on a shaft, such as the shaft I04 carried by suitable brackets I05 depending from the table I. Each folding plate has a downwardly extending arm I06 which is rigid with the folding plate and equipped at its lower end with a roller I01, A tension spring I08 stretched between a' portion of each downwardly extending arm I 0 and a stationary bracket or similar means, indicated at I09 (Fig. 2) serves to normally urge the arm I06 to rock the folding plate inwardly about its pivot.

The folding movement of each folding plate is, however, controlled by a cam device I I0 associated with each of the roller equipped lower ends of the respective arms I05. One of said cam devices I I0 is shown in Fig. 4 from which it will be seen that it includes a plate III carried by a bracket arm II2 depending from'a cross head II3 which is secured to the vertically movable post 86 (see also Fig. 2).

On the plate I I I there is fixedly mounted a cam member I I4, a pivoted cam member I I and a guide member I I0. The pivoted cam member I I5 is pivotally mounted at its upper end as indicated at II 5a, the lower endportion of the member I I 5 being provided with a pin III which extends through an arcuate slot H8 in' the plate III. -A

8 suitable spring I I9 stretched between the pm I" and a pin projecting from a portion of the plate III serves to yieldingly hold the pivoted cam member H5 in closed position relative to the lower portion I20 of the fixed cam element I Id.

The cam devices IIO move vertically with the post 8'! and head so that in the starting position, the roller I01 at the lower end of the arm I06 is engaged with the lower end high portion I2I of its cam H4. When the cam device IIO moves downwardly, the pivoted cam member II5 will pass under the roller I01 so that the pivoted cam member H5 is effective to hold the corresponding folding plate in its outwardly offset or open position, as shown in Fig. 2, until the roller I01 is permitted to roll across the upper end portion I22 of the pivoted finger whereupon the spring I08 is permitted to rock the lever I06 and its folding plate to closed or folded position, as shown in Fig. 4. As an incident to such rocking of the folding plate, the corresponding flap of the box blank 39 is folded to a position slightly inwardly of its norma1 vertical position relative to the bottom panel of the blank substantially as illustrated in Fig, 4. 7

Upon upward movement of the post 86 and its plunger head 05, the package will be ejected from between the closed folding plates I02 and returned into the overlying receptacle 3'! from which it pre-" viously dropped. The fluid state of the package content permits the package to be deformed to the extent illustrated in Fig. 4, whereby entrance of the upper end of the package into the cover member 3'! is insured, As an incident to said upward movement of the plunger head 85, the folding plates I02 may be forced outwardly by the normal width portion of the package at its bottom. The upper portion of the side and end walls of the package will, however, have entered the overlying receptacle 3'! before such outward movement of the folding plates is sufficient to permit such expansion of the upper portion of the package that entrance thereof into the receptacle 3'! would be hindered.

At about the time that the wrapped package content with the lower or inner receptacle formed from the blank 39' is fully inserted into the upper box or cover 31, the earns 59 are actuated in the manner already explained, to open the end grippers'5l so as to thereby release the receptacle 31 fromthe carrier 9 whereupon the carrier is returned empty to its initial or starting position (shown in Fig. 3). The operator of the machine then removes the completed package from the plunger head 85 and places another carton blank 39 in position thereon whereupon the operation of the machine is repeated.

The cam shaft 32 is rotated continuously so that all of theparts of the machine are operated in continuously repeated cycles and the operator of the machine merely removes the completed packages and delivers box blanks to the plunger head. The speed of the machine may be adjusted in any suitable manner to permit its operation at whatever speed the operator can deliver the carton blanks and remove the filled packages. Also, a conveniently located switch may be provided for stopping or starting the machine for any be made without departing from the principles of the invention.

We claim:

1. In apparatus of the class described, a combination of means for guidin a row of packages, means for effecting movement of said packages along said guiding means, movable means for receiving and inverting the leading package of said row, means for stopping the movement of said row of packages upon delivery of the leading package to said receiving and inverting means, means for effecting movement of said receiving and inverting means to discharge the content of the receptacle carried thereby-in a predetermined position, a die plate having an opening therein, means for positioning a box blank in predetermined relation to said opening, said box blank being prescored to facilitate folding thereof around said package content, said die plate and said blank positioning means being disposed in such relation to said receptacle content discharge position as to cause said content to force said blank through said die plate opening as an incident to the Weight of the content and its movement upon being discharged from said receptacle, thereby to fold said box blank around said content, means for effecting movement of said content and the folded box blank upwardly through said die plate opening and into said inverted receptacle to thereby effect enclosure of said package content in inner and outer box sections, means for returning said filled receptacle receiving means to its starting position, and means for releasing said package movement stopping means to permit another filled receptacle to be delivered to said receiving means.

2. In apparatus of the class described, a receiver adapted to receive in upright position a filled open topped receptacle, an arm pivotally mounted at one end and having said receiver pivotally mounted in its other end, means for effecting rocking of said arm, means for effecting rotation of said receiver to inverted position as an incident to the lateral movement thereof effected by rocking said arm, the content of said receptacle being discharged therefrom as an incident to the inversion thereof with said receiver, and means for applying another box section to said discharged package content and returning the same together with said box section into said receptacle to thereby effect enclosure of said content in a slip cover box.

3. An apparatus according to claim 2 wherein said receiver is provided with movable means for gripping the filled open topped receptacle so as to hold the receptacle in fixed position in the receiver when the receiver and receptacle are inverted, and wherein there is provided means for moving said gripping means to release the package upon completion of insertion of the content and box section into the inverted receptacle, thereby to permit return of the receiver to its initial position for receiving another package.

4. An apparatus according to claim 2 wherein said receiver includes a bottom wall, a front wall,

and an end wall, said end Wall having a shaft secured thereto, said shaft being rotatably mounted in one end of said arm so as to pivotally support the receiver in said end of the arm, and wherein there is provided means for gripping and holding the filled receptacle on said receiver, said gripping means comprising a plate member constituting, in effect, an extension of said end wall, arms extending from said plate member on opposite sides of said shaft and pivotally mounted on said end member, spring means normally urging said plate member into receptacle gripping position, a cam and cam actuated means for moving said gripping plate to open position against the pressure of said spring, and means for actuating said cam so as to open said gripping means at a predetermined time in the operation of the apparatus.

5. In apparatus according to claim 2 wherein said receiver comprises bottom, front and end walls and wherein said end wall is provided with a shaft extending endwise therefrom and rotatably mounted in one end of said arm to thereby pivotally mount said receiver in said arm, a receptacle ear opening finger pivotally mounted on said receiver, cam non-rotatably mounted on said arm, and means connected to said finger and having operative engagement with said cam for effecting rocking of said linger as an incident to rotation of said receiver about the axis of its pivot mounting on said arm to thereby open the receptacle ear as an incident to the inversion of the receiver and the receptacle positioned there- 1n.

6. In apparatus of the class described, a receiver adapted to receive in upright position a filled open topped receptacle, an arm pivotally mounted at one end and having said receiver pivotally mounted in its other end, means for effecting rocking of said arm, intermeshing gear and segment means for effecting rotation of said receiver to inverted position as an incident to the lateral movement thereof effected by rocking said arm, the content of said receptacle being discharged therefrom as an incident to the inversion thereof with said receiver, and means for applying another box section to said discharged package content and returning the same together with said box section into said receptacle to thereby effect enclosure of said content in a, slip cover box.

CHARLES E. PALMER. FRANK J. KOSTOHRYZ.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,162,611 Jones Nov. 30, 1915 2,323,467 Guyer July 6, 1943