US1989492A - Packeting machine - Google Patents

Description

Jan. 29, 1935. E; REY T A; 1,989,492

PACKETING MACHINE Filed March 5, 1929 l5 Sheets-Sheetl Ina/e niow's Edwin Morey, Bobea ili Stimson,

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E E III" Jan. 29, 1935. E. MOREY ET AL PACKETING MACHINE Filed March 5, 1929 15 Sheets-Sheet 6 JQ. 6V k i Inventors Edwin More Roberili. Siimpson,

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E. MOREY ET AL.

PAGKETING MACHINE Filed March 5, i929 15 Sheets-Sheet m Inveniors: Edwin Howey,

Jan; 29, 1935.

E. MORE Y ET AL PACKETING MACHINE 1s sheets-sheet 11 Filed March 5, 1929 a II I llLrllAl ILII Illll mom ' 'lia vniovs: Edwin More Boberili. .Siimgfs on,

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PACKETING MACH INE Filed March 5, 1929 15 Sheets-Sheet 12 Inventor-s: I dwm Movey,

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12111929, 1935. E; MOIIQ'HEY 'ET AL PACKETING MACHINE Filed March 5, 1929 15 Sheets-Sheet 13 Invezdoi's Edwin More imp-sou,

Boberifl S Jag: 29, 1935. E. MOREY ET AL PACKETING MACHINE '15 Sheets-Sheet 15 Filed March 5, 1929 Inventors Ed? min lo Boberifl Sii Veg,

l flii Patented Jan. 29, 1935 PACKETING mourns Edwin-Morey and Robert H. Stimpson, Nashua, N. H., assignors, by mesne assignments, to Frederick L. Emery, Boston, Mass; Grace H.

, Emery executrix of s deceased aid Frederick L. Emery,

Application March 5, 1929, Serial No. 344,246

36 Claims.

This invention relates to packeting machines, commonly so called, or machines for forming, filling and closin' containers or packets made of paper or other flexible material, particularly where it is desired to effectively seal and protect the contents from the air whether or not the container is to be subsequently enclosed in a carton. Such packets may contain cereals, spices and other dry materials, particularly when it is desired to sell them in measured quantities in dust and air proof containers.

The invention aims to provide a novel and improved machine having, among others, the novel features herein shown and described.

In the drawings of one embodiment of our in .vention selected for illustration and description herein,

Fig. 1 is a'front elevation;

Fig. 2, a diagrammatic plan, partly in section,

forming and closing elements taken on the line 2-2, Fig. 1;

Fig. 3, a vertical section on the line 3-3, Fig. 1, of the packet forming plunger housing on an enlarged scale, showing also its operating connections;

Fig. 3A, a cross section of the plunger on an enlarged scale on the line 3A-3A, Fig. 3;

Fig. 4, a rear elevation of that portion of the plunger housing indicated by the arrows 4-4, Fig. 3, showing its operating mechanism,

Fig. 5, a vertical section on an enlarged scale on the line 55, Fig. 1, through the lower part of the plunger housing and adjacent cooperating parts showing, also in section, the paper feeding mechanism;

Fig. 6, a front elevation of the side wall mechanism of the packet fashioning means and the packet cooling means partly in section;

7-7, Fig. 1, and in part diagrammatic, showing the packet detecting mechanism;

Fig. 8, a vertical section on an enlarged scale of a portion of Fig. 5, showing the elements used in effecting the first step of the packet forming operation, including the paper folding elements for forming the minor or narrow packet faces;

Fig. 9, a front elevation of parts shown in Fig. 8, showing the paper. sheet folded to form the major sidewalls and in position to be initially folded to form the minor packet walls;

Figs. 10 and 11 show, respectively, further steps in the folding of the sides and bottom of the packet;

Fig. 12, a front view of some of the parts shown in Fig. 9 including the partially formed packet;

Fig. 13, a detail front elevation of the bottom minor flap folding members and showing the packet entering the carrier;

Fig. 14, a rear elevation of the minor top flap of the driving mechanism for the several packet Fig. 7 a vertical section in part on the line indenting or first folding step members in dotted lines and, in full lines, the operating connections therefor;

Fig. 15, a side elevation and partial section on the line 15-15, Fig. 1, of the same parts and of the parts for performing the second folding step;

Fig. 16 is a front diagrammatic view of the first top folding step mechanism and mode of operation;

Fig. 17 illustrates the method of performing the second top folding step and elements for effecting the same;

Figs. 18 and 19 respectively, a front, and a side view on the line 19-19, Fig. 1, of the third, top folding elements;

Fig. 20, a side partly sectional view of the same elements during the efiecting of the third foldin step;

Fig. 21 illustrating a similar view of the method of effecting the fourth, top folding step;

Figs. 22 and 23; front and side elevations re spectively, the latter partly section on lines 23, 23, Fig. 1, of the fifth top folding step instrumentalities;

Fig. 24, a similar view of the fifth top folding step mechanism and illustrating its method of operation;

Fig. 25, a side elevation on line 2525, Fig. 1, of the sixth step or top fold positioning means and the ejectors;

Fig. 26, a diagrammatic view of the ejecting operation and showing the top sealing plate holding the sealed top fold in position to enter the conveyor;

Fig. 27, a view partly in elevation and partly in vertical section on line 27-27, Fig. 1, showing the hopper and operative connections for charging the packets;

Fig. 28, a horizontal partial section on the line 28-28 of Fig. 27, through the hopper;

Fig. 29, a cross-section through the charging device looking down on the line 29-29 of Fig. 27

Fig. 30, a diagrammatic view showing substantially on the line 30-30, Fig. 27, the charging means control, part of which is on the bottom face of the movable hopper and part on the upper face of the chute plate;

Fig. 31, a partial vertical section and partial.

line

aprons 3, 4. The bed, Figs. 5, 7, is grooved or channeled at 5 to receive an endless conveyor 6. This conveyor is provided, Fig. 5, with a carrier 7' partly offset from thecenter line of the conveyor, which carrier receives the packet forming material, as paramn paper, from the packet forming elements, which will be described presently. Beside the carrier, Figs. 1, 5, is a guide 8 on brackets 9 on the, base to assist the carrier in maintaining the packet in proper position as it-is presented to the successive elements to be described, which perform upon it various functions usually at designated points, conveniently termed stations, which will be described in order.

For this purpose, Fig. 2, the conveyor is given an intermittent forward motion by means of a beveled pinion 10, on the main cam shaft 11 in mesh with a similar gear 12 on the shaft 13 carrying a Geneva driving and locking arm 14 which, with a Geneva spider 15 on the shaft 16 provides a Geneva gear, as it is commonly called, which imparts intermittent motion to a carrier sprocket 17 over which runs the endless conveyor 6, Fig. 1. On the back of the machine it is provided, Fig. 2, with a main driving pulley 19 on a shaft 20 extended laterally of the bed 1, and this shaft carries at its inner end a beveled pinion 21 in mesh with a similar. gear 22 on a second lateral or cross shaft 23.

This shaft 23 carries a beveled pinion 24 on its inner end in mesh with a beveled gear 25 on the main cam shaft 11, and the shaft 23 also carries at its opposite end a beveled pinion 26 inmesh with a second beveled a front cam shaft 28. 1

On one, and Fig. 1, the right hand end' of the -bed is a tall housing 29 for the packet forming reverse direction as the plunger 30, also Figs. 3, 5, the housing having several plunger bearings, Fig. 3, as 31. Power for operating this plunger, Fig.2, is provided by a sprocket 32 on the shaft 20 which carries a chain 33, Fig. 1, running, Fig. 3, to a similar sprocket 34 on a shaft 35, in a bearing 36'on top of the bed 1, and bearing 37, Fig. 3, on the rear of the housing 29, this bearing and also bearing 38 above it being held in position by clamps 39 engaging both sides of the housing 29. Shaft 35 carries a sprocket 40, see Figs. 3. 4, which, in turn, carries a chain 41 running to a second sprocket 42 mounted in the bearing 38.

This chain, Fig. 4, has engagement with the plunger 30 by means of a lug 43 on the chain, which lug carries a roll 44 46 clamped to the plunger, the roll traveling from the left hand end of the slot to the opposite end as the lug 43 travels upwardly and over the up-, per sprocket 42 and then downwardly, and in the lug passes downwardly, beneath sprocket 40, d then upwardly on the opposite side.

The first function, Fig. 5, performed by the machine between stations one and two is the supplying of paper of proper width in the form of a strip 50, from a roll 51 supported in a bracket 52 on the rear of the bed 1. This strip 50 passes beneath a valley roll 522 journaled in a slotted post 523 on the bracket 52 and then between feed rolls 53 rotated by any convenient means, not shown here, and thence between the supporting roll 54 and a cooperating rotary cutter 55 operated as will presently be described. The roll 522 acts to prevent the formation of wrinkles in the paper as it is fed upward, and the roll drops in the slotted post asthe roll of paper diminishes in size.

By the cutter 55, Fig. 5, the paper strip is severed at the proper time to produce a piece 56 of properv size to make one packet and therefrom gear 27 on what we term in a slot 45 in a plate it passesover the table 57 beneath pressure rolls 58 in a frame 59. This frame has a curved end pivoted at 60 to the housing 29, and about which the rolls 58 and frame 59 swing to retain the strip 56 flat in its proper position and condition to be fed by the roll 66 beneath guides 61, 62 to the position shown in Fig. 5 for action thereon by the plunger 30.

The roll 54 and cutter 55 are geared to be rotated by a chain '65 from a sprocket 86, Figs. 2, 5, on the shaft 11. From a sprocket 69 on the same shaft, Figs. 2, 5, there runs a chain to a sprocket 76 on the shaft 77, over which runs an endless papercarrier '78 to the roll 79 for carrying the severed paper strip beneath the rolls 58 to the plunger. Obviously any desired detail mechanism for operating the paper feeding and severing rolls may be used for that purpose.

The strip of paper'56 from which the packet is to be made having been positioned as shown in Fig. 5, the plunger 30, Fig. 8, operated as already described, descends at station two, and forces the paper strip 56, dotted lines, down between front and rear packet-wall-forming members 82, 83, Fig. 5, secured to brackets 84 and 85 extended between and secured to opposite sides of the housing 29 on the bed 1, thus forming the major side walls of the packet.

For forming the minor walls of the pocket, Figs. 8, 9,10, we have provided novel and movable wall forming plates 86, 87 adjacent the fixed member 82 and a similar movable plate 88 adjacent the member 83. These plates 86, 87, 88 are carried on opposite ends of the stud shafts 89, Figs.'5, 8, 9, 10, in the brackets 84, 85, the lower shafts being provided with dogs 92, 93 projecting into the path of the plunger 30. The rear or outer ends of the dogs 92 adjacent the member 82 are connected by links 94 with arms 95 on the upper shaft 89 carrying plates 86.

In the edge of the table 57, Fig. 8, is a roll 951 on each side of the plunger 30, each roll mounted in a slot 952 and yieldingly retained in position by a spring 953 for the purpose of facilitating the uniform movement of the paper beneath the plunger 30.

When the U-shaped strip of paper backed by the plunger in its downward travel reaches a point slightly below itsposition as shown in Fig. 8, the paper enclosed plunger engages the dogs 92 turns them downwardly and their rear ends upwardly, throwing the plates 86, 8'1 inwardly and downwardly and causing them to bend the projecting edges of the paper strips 56, Fig. 9, inwardly, Fig. 10, about the plunger..

Immediately after one edge of the bent strip of paper has been folded inwardly by the plates 86, 87, Fig. 8, the paper and its plunger engage the opposite dogs 93, and depress them, causing the plates 88 to fold the edge of the opposite side of the strip of paper inwardly, Fig. 11, thus forming the minor packet walls and leaving the triangular minor wall folds or tabs 99.

At their lower ends, Fig. 11, the brackets 84, 85 carry front and rear bars 844 and 845 respectively, between which are suspended hollow bars 846, 847, each containing a heating unit 99, the four members 844, 845, 846, 847 forming a rectangular opening and tab sealing aperture 96, with curved upper edges 97 adjacent the minor packet walls, which edges, Figs. 9, 12, 13, are heated by any suitable means, as electricity, through wires 98, connecting with wires to be described leading from the top of the plunger 30, Fig. 3, to the heating elements 99, dotted lineaabove referred to, within the bars 846, 847. As the tabs 90, Fig. 12, and overlapped minor packet walls move downwardly past these rounded edges 97, the tabs and overlapped edges are warmed sufliciently by the plunger 30, heated by the elements 301 through the wires 302, Figs. 3. 3A, and the heated bars 846, 847, to cause the paraflin or substitute therefor to melt, and the overlapped packet edges are pressed together between the plunger and walls 844, 845, 846, 847 and the tabs are pressed closelyagainst the minor side walls'of the packet, and as the parts cool, they adhere firmly to each other.

The elements 846, 347, Fig. 6, are yieldingly held in carton contacting position by springs 99 'seated against the ends of the blocks 846, 847, and the plates on the ends of elements 844, 845, the ends of the elements 846, 847 protrudlng through and sliding in the slots 99 in the members 844, 845. 1

As the packet A is forced through the tab and fold sealing aperture 96, it is positioned by the .plunger 30 in the carrier 7 immediately beneath it, Figs. 13, 16, with its top projecting above the carrier. where it is received, Fig. 16, upon a vertically sliding bottom member 100, with a lining of wood 100, the carrier having minor wall members 101 and major walls 102, Fig. 17, preferably all of oiled wood, so that the waxed paper packet will not adhere to them. The bottom 100 is prevented from leaving the carrier 7, Figs. 16, 17 by the top flanges 103 and bottom plates 103.

In its travel from the opening 96 to the carrier 7, the packet is guided, Figs. 9, 12, 13, by a fixed guide plate 104 and an opposite guide plate 105 movable on a shaft 106 and adapted to swing longitudinally of the machine in the direction the carrier moves to permit the packet A to be advanced by the carrier. This swinging guide plate feature is shown clearly in Fig. 6, wherein the shaft 106 is shown provided with a gear 107 meshing with a segmental gear 108 on a stud shaft 109 in a bracket 110 over the bed 1.

On the rear end of this shaft there is also fixed, Fig. 5, one end of the long arm 111 of a lever 112, also dotted lines, Fig. 5, the opposite to register with the ends of the pipes 117.

end of which arm carries a rod 112*, on the lower end of which is secured a roll 113, dotted lines, Fig. 6, which travels in a suitable cam groove, in a cam disk 114 on the shaft 11. The action of the roll in the cam is so timed that when the packet is about to be fed forward to station three, or to the left, Fig. 6, the rod 112 is raised with the lever am 111 and segmental gear 108, rotating the gear 107 to the right and swinging the plate 105 to the left leaving the path clear for the upwardly projecting top of the packet, Fig. 6, to move to the left.

At this same point, station three, we have provided novel means to assist the quick cooling of the packet which was heated to effect the sealing operation of the overlapped side edges and triangular tabs. This means, Fig. 6, comprises a pipe 116 leading from a convenient source of cool air, if desired, but not shown, which, by a conventional blower, also not shown, provides a stream of air to be thrown by pipes 117, as four in number, into the four corners of the open top of the packet A.

This cooling operation, Fig. 6, is controlled by a slide valve 118 in a seat 119 supported from the base 1, the valve having ports 120 adapted This valve is controlled by a link 121 connecting it with the short arm 122 of the lever 112, con- V nected in turn by the long arm 111 androd 112 a small passage 123 through the bottom lining I 100a of the carrier and passage 124 through the bottom 100 and beneath'the packet. to offset any tendency of the packet to follow the plunger upward; the object being furthered by the action of the stripping boards 125, 125, Fig. 5, on the brackets 84, 85 adjacent the plunger 30, which catch the upper edge of the packet and act to prevent it from. moving upward.

For this purpose, Fig. 5, there is provided below the carrier a plunger 126 carrying at its upper end a resilient cup 127, the plunger having therein a passage 128 adapted to register in proper position with the end of a pipe 129 in a block 180 on the base 1, the pipe leading to a vacuum creating device, not shown. The plunger head is also fluted, as at 303 on the sides'and bottom,

Fig. 3A, which permits air to pass down into the packet and thus act to prevent the formation of a vacuum within it. The plunger is preferably of aluminum with hard metal wear plates 304 on the sides at the points where they get the most wear. i

This plunger, Fig. 5, is actuated by a lever 131, on a bracket 132 on the bed 1, one arm 133 of the lever being pivoted to the plunger while the op posite arm 134 carries a roll 135 which travels in a cam path 136 in a cam 137 on the shaft 11, see also Fig. 2. By the above described means, the air is exhausted from beneath the packet A in the carrier before the plunger is withdrawn, as already pointed out.

The plunger having been withdrawn, the packet is advanced by the carrier to station four where a novel packet-detecting device is utilized preparatory to the charging or filling operation, to make sure that the packet is in proper condition to receive the materiaL. In Fig. 7, this device is illustrated as comprising an arm 138 pivoted to a bracket 139 on the bed 1, and connected by a rod 140 with a cam 141, see also Fig. 2, on the shaft 11, the rod carrying a roll 142 in a cam path 143 by which up and down rocking -motion is imparted to the arm.

The forward end of the arm overhangs the carrier 7 and carries at its end two stud shafts 144, 344, on each ofwhich is a gear 1 15 in mesh with the other. On one end, Figs, 1, 7, of shaft 344 is an arm 146-, dotted lines, which, in the position shown, rests upon the upper end of a bracket 147 on the bed 1, the arm being suitably. adjusted by a set screw 148 for such contact. The

gears are normally rotated toward each other by a spring 149 connecting posts-349 on the 7 tended passage 355, 356 therethrough'and registering with eachother. Thepassage in the arm 353 is the larger and is adapted to receive a plunger 357 in the opposite passage normally pressed toward it by a spring 358 in the arm 354.

On the rear end. of plunger 357 is a contact 359 connected by a wire 360 with a source of electric current, not shown. This contact will, when the plunger 356 is extended into the passage 355, engage a cooperating contact 361 on the arm 138 and also 'in circuit with the contact 359. i

Normally, Just prior to the movement of the carrier to station four, as shown in Fig. 7, the arm 138 will be in its upper position and the arms 353, 354 separated by action ofthe spring 149, carrying the am 146 downward and the arm 350 upward against the stop 351.

When the packet arrives beneath the arms 353, 354, 'the roll 142 causes the arm 138 to swing downwardly and the contact of the stop .148 on the arm 146 against the top of the bracket 147 causes the gears to swing the arms 353, 354 toward each other and they will engage opposite sides of the packet as shown in Fig. 7.

This packet, if in proper position, will prevent the plunger 357 from entering the passage 355 to bring the contacts 359 and 361 together, and the arms will again be separated in due time by action of the roll 142 in the cam 141, and the operation of the machine continues normally.

If, through mistake, the packet has not been properly fashioned and positioned in the carrier,-

when it arrivesbeneath the arms 353, 354, the plunger 357 will not be prevented by it from entering the passage 355, contact 359 will engage contact 361, the circuit will be closed and, by any suitable means to be later described, the hopper discharging means will be locked so that it will not operate to charge the packet.

It having been determined, however, Fig. 6, that the packet is in proper condition to receive its material, it is next passed beneath a hopper 398 with discharging means or filling mechanism, Fig. 1, of any suitable and preferred type, at station five, to be described presently, where it is filled.

The packet having been filled, its upper end may now be sealed and it is advanced to station six where the first two steps are performed, and for this purpose, Figs. 14 to 16, we have-con ceived the following novel mechanism. The carrier brings the packet first beneath two vertically rocking end top-flap indenting or forming members 150, 151, Figs. 1, 14, 15, 16, depending in the path of the packet, on rocker shafts 152, 153, carried by a bracket 154 on the bed 1. These rocker shafts, Fig. 14, carry gears 155, 156 respectively, in mesh with similar gears 157,

- 158 on shafts 159, 160 all carried by the bracket Desired rocking motion, Fig. 14, is imparted to these members by means of a segment 164 on a shaft 165 carrying also an arm 166 on the bracket 154, and connected by a rod 167. Figs. 1, 2, 15, with a roll, not shown, traveling in a cam path, not shown, on the disk 172. Thus the members 150, 151, rock back and forth in the path of the packet and at the proper time engage opposite minor sides, Figs. 14, 16, of the top of the packet and indent or fold inwardly a V-shaped area leaving the two major sides 176, 177 upstanding, somewhat narrowed at the top, as shown in Fig. 16.

To bring these top flaps together side by side and properly fold them, Figs. 15, 17, there is provided'novel means comprising as the first step in that proceeding heated interlocking, blocklike angular 101a forming members 178, 179 with wires 180, 181 running to them from any source of electric current to melt or soften the wax or other suitable material on the pa ket paper, the

members carried, Fig. 15, by arms 182, 183 on shafts 184, 185 above the packet path. These shafts carry interlocked gears 186, 187, the shaft 184 carrying also an arm 188 to which is pivoted a link 189 with a hollow boss 190 which receives the end 'ofa rod carrying about its upper end a helical spring'196 seated at one end against a collar 197 on the rod, and against the shoulder 198 on the boss 190 on-the rod 195 at its opposite end. The M195 is locked in the boss 190 against inward movement, by a collar 199 on the rod.

The rod 195 carriesat its lower end a roll, not

The block or anvil 205 is carried by the long arm 207 ofa bell crank lever pivoted at 208 to a bracket 209 on the base 1, the short arm 210 carrying a hollow boss or sleeve 212 on which seats one end of a spring 213 on the rod 214, the opposite end being seated against the collar 215 on the rod which is adjustably secured therein,

and prevented frominward movement by means of a collar 216 on the rod. The rod carries at its opposite end a roll, not shown, in a cam path, not shown, in a disk 218, Figs. 1, 2, on the front cam shaft 28. v

The beveled fold bending presser plate or hammer 206 is on a short arm 223 of a lever pivoted at 224 on the bracket 209, the long arm 225 being movably connected to a rod 226 having a one way yielding connection therewith as in the case of arm 210 and rod 214, the rod 226 carrying a roll, not shown, in a cam path, not shown,-

in a disk 227 on the shaft 11, Fig. 1.

By action of the roll and cam at the proper time the sharp nosed hammer 206, Fig. 20, is caused to press the folds 176, 177 firmly against the block 205 whilethe member is heated by wires 228, 229, and impart a downward bend to the partially right-angled turned upper edges of the folds.

For continuing this downward folding action, Fig. 19, the shaft 208 also carries a segment 230 on the arm 231, the segment being in mesh with an intermediate gear 232, which, in turn, meshes with a gear 233, both on the arm 207 previously referred to. The gear 233, in turn, engages a pinion 234 on a short shaft 235 on the block 205,

the shaft 235 carrying also a short crimping memher 236. The segment 230 is actuated through the arm 231 by a rod 238 similarly secured to the arm 231 as in the case of the rod 214 and arm 210, the rod carrying a roll, not shown, in a cam path, not shown, in the cam 239 on shaft 28, Figs. 1, 2.

By the elements described, after the members 205, 206 have closed upon the folds, Fig. 20, and given the fold the downward turn while heated, member 206 is withdrawn, Fig. 21, and the crimping plate 236 is, by the action of the rod 238 and the gears and segment described, Fig. 21, while heated causedto crimpthe folds and to bend them downwardly and still more closely together by the curved end of member 236 pressing them into a depression 205 in the crimping en of the member 205. v

To further effect the final downward folding and sealing of the flaps 176, 177, and to square up the top of the packet, they are next acted upon, Fig. 24, at station eight by the following members. r

On the front side of the base 1, there is positioned an outwardly curved bracket 244, Figs, 22, 23, 24, in which is pivoted at 245 a lever, one arm 246 of which has, on its end, a laterally extended crimped flap pressing and bending jaw 247 substantially equal in length to the adjacent side of the packet top fold. This arm, Figs. 22, 23, also has pivoted to it at 248 a lever 249, having on one end a cooperating crimped flap pressing and bending jaw 250 with suitable elements, not shown, and electric wires 251 for heating it. The other end of the lever carries a roll 252 which travels outwardly on an inclined rail 253' of the bracket 254 beneath the shield 253 on said bracket and presses the members 247, 250 toward each other on opposite sides of the packet top and which rail 253A is cut away somewhat to permit downward swinging action of the jaw 250. The opposite end of the lever 246 is adjustably connected like lever 238, Fig. 19, with a rod 255 which, in turn, carries a roll, not shown, in a cam path, notshown, in the disk 256, Fig. 2,

r by means of which rocking motion of the lever 246 is obtained.

When the packet arrives at station eight, the jaws 247, 250 are open as at Fig. 23, and the crimped flaps, as in Fig. 21, are normally positioned between them. Thereafter through the described action of the lever 246 and the travel of the roll 252, the jaws are closed against the crimped flaps, as in Fig. 24, thus acting to draw downwardly the upstanding closed packettop, squaring the top of the packet, and the paraflin of the paper is warmed by the heat from the jaw 250 sufficiently to cause the flaps to adhere under pressure of the jaws 247, 250, see Fig. 24, which, when the roll 252 returns down the rail 25 3, subsequently reopen permitting the packet to be advanced to the ejecting position. This action of the jaws 247, 250 also acts to throw the upper end of the folded top laterally to the right of the center of the packet, and to thus leave the downturned packet top fold tucked somewhat beneath the laterally positioned top of the fold and helps to lock the end of the downturned fold beneath the overhanging top and reduces the danger of its flying open.

To complete the sealing of the flaps by laying them down upon the top of the packet, as in Figs. 25, 26, additional means are provided, effective at station nine, which follow the action of the vertical ejector, in removing the packet from the carrier and positioning it in front of the horizontal ejector.

The bottom 100 of the carrier, Figs. 16, 17, 20, 21, 24, is acted upon, Fig. 25, at the proper time by a vertically operative ejector 257 slidable in a track 258 on the front of the bed 1. This ejector 257, Fig. 25, has pivotally connected to it a link 260 which, in turn, has pivotal connection with a link 261, in turn pivoted to an arm 262, Figs. 1, 2, 25, and cooperating with the cam disk 263 on the front cam shaft 28. By this means the ejector 257 is given a vertically reciprocating motion, and so timed, Fig. 25, that the packet is ejected vertically at the proper time to a position on a level with the upper run of the conveyor belt 265, Fig. 25, and immediately in front of the horizontal ejector 286 slidable, Fig. 25,," in a upwardly by the member 257, however, and dur ing the ejecting operation of the horizontal ejector 266, there is a final sealing or fold tucking step effected by a novel mechanism for that purpose. The ejector 266 carries pivoted on its forward upwardly extended end 279, a fold tucking and heating plate 280 on the end of the curved arm 282 and connected by wires 281 with a source of electricity, not shown, which arm carries, on its opposite end, a roll 283 which travels on a rail 284 on the bracket 284. This arm is normally held down by a helical spring 285 secured to the member 266. When the ejector is in its retracted position, Fig. 25, the roll 283 is. so positioned that the tucker 280 is elevated.

When, however, the ejector moves forward, Fig. 26, the roll 283 rides upon the upwardly inclined end of track 284 and the tucking plate 280 is turned downwardly and fed forwardly, Fig. 26, to a position just below the crimped folded flaps 176, 177, and between them and the top of the packet. Then sufficient heat is applied through the wires 281 to warm the paraflin, and when the ejector 266 thrusts the packet between the belts 265, 274, Fig. 25, the warmed flaps 176, 177 are pressed down firmly upon the packet top, secured and cooled as the packet moves along in the conveyor.

While the container as described herein has been termed a packet, it should be understood that our invention as claimed and described is not to be limited thereby to containers that are not required by the nature of the intended contents thereof or by the strength of the material of which they are made, to be enclosed in other containers, or cartons, for further protection.

Obviously sometimes it is desirable for protection of the container or contents to protect either or both by incorporating the container as a liner, in a second container, which may be done readily with the container already described; and in such case the container, even if termed something different, as a liner, is identically, the same article but intended to be used for different materials, and as such is comprehended within the description and terms of the claims covering our invention herein.

Referring again to the packet-detecting mechanism described heretofore, and illustrated in Fig. 7, and with particular respectto the mate rial-charge control mechanism-operated thereby,

the wire 360 leads to a relay switch 365,sh0wn

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