US1585879A - Wrapping machine - Google Patents

Description

May 25 1926. 1,585,879

H. SCHLOTTHAUER WRAEPING MACHINE Filed August 2, 1923 9 Sheets-Sheet 1 May 25 1926.

H. SCHLOTTHAUER WRAPPING MACHINE 1923 9 Sheets-Sheet Filed August 2 l/WEN T0312 W Mm I hfiorqelj May 25 1926.

H. SCHLOTTHAUER WRAPPING MACHINE Filed August 2, 1923 9 Sheets-Sheet 3 um wlE INVENTOB ill/mm May 25 1926. 1,585,879

H. SCHLOTTHAUER WRAPPING MACHI NE Filed August 2, 1923 9 Sheets-Sheet 4 JNVE-NTO May 25', 1926. 1,585,879

H. SCHLOTTHAUER WRAPPING MACHINE Filed August 2, 1923 9 Sheets-Sheet 6 INVE ASTOR Mm (MW May 25 1926. 1,585,879

H. SCHLOTTHAUER WRAPfING MACHINE Filed August 2, 1923 9 sheets-sheet '7 1 if 1 l: IN hi W VENTOB MU I Mforpeq WRAPPING MACHINE Filed August 2,

1923- 9 Sheets-Sheet 8 May 25. I926;

' H. SCHLOTTHAUER WRAPPING MACHINE Filed August 2, 1923 -9 Sheets-Sheet 9 2 mg QM WQ Patented May 25, 1926.

UNITED STATEfi PATENT OFFICE,

HERMAN SCI-ILOTTI-IAUER, OF CHICAGO, ILLINOIS, ASSIGNOR TO PYRAMID DRIJ'G COMPANY, OF MARSHALL, MICHIGAN, CORPORATION OF MICHIGAN.

WRAPPING MACHINE.

Application filed August 2, 1923.

provision of an automatic feeder adapted for containing a quantity of articles and having-means for successively feeding one of such. articles to the wrapping machine.

A fiirtli erobject of th e invention is to provide a wrapping machine having improved wrapper forming means for receiving the cut paper and forming same preliminary to receiving its charge.

Another object iinds embodiment in automatic charging means whereby the wrappers are successively charged from the feeder chamber.

A further object of the invention is to provide a machine for automatically wrapping material in conical form.

A still further object is to provide novel means forenclosing or sealing the ends of the wrapper after charging.

Other objects will appear from the following description of my invention which is illustrated in the accompanying drawings, and particularly pointed out in the appended claims. i

in the drawings, in which like reference characters indicate like or corresponding parts, I

Fig 1., is a side elevation of a wrapping machine embodying my invention;

Fig. 2, is a sectional view takenon line 22 of Fig. 1;

F ig. 3, is a sectional view taken on line 3 3 of Fig. 1, showing theoperating mechanism beneath the platform;

Fig. is across section taken on line r rer Fig. 1; i

Fig. 5 is. a cross section of the automatic feeder taken on line of Fig. 6, and

Fig. 6, is a plan view of same;

Fig. 7 is an enlarged plan view of the rotary feeder control and device for expel- 2 li 1 Pirf n s;

"Fig." 8, enlarged view of the Serial No. 655,193.

rotary shape-forming spindle for the Wrapping and also the charging plunger and feeder loading chamber;

lug. 9, illustrates the wrapping paper forming rolls and automatic cutter; Fig. 5%, shows a plunger device for fold- 11125191 closing one end of the wrapper;

r 1g. 10, shows device for folding the other end of the wrapper and the ejector of the completely wrapped unit;

Fig. 11, illustrates a. side elevation of an L empty wrapper extractor and 1* 1g. 12, IS a cross section of same taken on line 1212 of Fig. 11.

B g. 13 1s a VlW partly in section taken on line 13--13 of Figs. 3 and 14,

1* 1g. 14; is a detail of the actuating mechanism for the shear blocks; and

Fig. 15 is a sectional view taken on line -1515 of Fig. 8.

I shall preferably describe my invention as applied to wrapping conically shaped units, such as for instance, medicated cocoa butter cones.

Referring to the illustrations, which show a preferable embodiment of my invention:

A cast iron stand is provided having suit able supporting legs and platform 26. The entire machine is driven by a single motor 2'? which is supported on cross supports 28 extending between the rods 29. The main drive shaft 30 carries a. gear 31 which is driven by the pinion 32 on shaft 33, which shaft is operably connected to the motor pinion 27 and gear 34 mounted on the end of the shaft A suitable clutch 35 may be obviously provided for disengaging the mechanism from the constantly operating motor 27.- iii The wrapping paper 37 is preferablv mounted on the spool 36 and is passed under a tightening roller 38 supported on the arm 39 which is pivotably mounted at 39 The arm has a depending bracket 39 which limits the downward movement of the tightening roller 38. i

The paper 5 passes over the corner roll 40 and between a pair of feed rolls ll and 42 which are respectively rigidly mounted to the shafts 43 and 4:4. The shafts 4:3 and 4% and the roll 4:0 are supported in the brackets 45 mounted on the platform 26.

A pair of like gears 46 mounted on the end of shafts L3 and 44- are in mesh and Bil lit)

lUO

thereto and which ratchet wheel imparts an intermittent rotary motion to the shaft lland feed rolls all and l through the meshed g 146. This intermittent rotary n'iotion imparted to the ratchet wheels 4? by means of a pawl l8 which is pivotaliy mounted to the arm a9.

The arm 49 is cast integrally with the pinion 50 which is loosely mounted on the shaft. leiadjzurently to the ratchet l7. The pawl 46 has connection with a small coil spring 51 which extends from it to the arm l9 and which maintains the pawl under resilient pressure in engagement with the ratchet wheel :7.

The pinion 50 and its integral arm l9 receive an oscillating movement through the rack 52 which is slidably mounted in the housing to maintain its constant connec-' tion with the pinion 50. The lower end of the rack 52 is extended for pivotal connection to the crank disk 54. The crank disk 5-4: is fixed on the end of shaft 55 which is supported in bearings 56 and which is driven by a pair of bevel gears 57 operatively connected with the main drive shaft 30.

The upper roll shaft 43 is carried in vertically adjustable bearings 43 screwmounted in the tops of the brackets l5.

After the paper strip is intermittently fed from the rolls 41 and 42 it is engaged by the forming rolls 58 and 59. The upper roll 58 is pivotally mounted on the bracket 60 and bears down with its convex periphery into the grooved periphery of the roll 59 and so imparts an initial concave formation to the strip of wrapping paper as it is intermittently fed therebetween. The shaft 59 carries a rigidly fixed sprocket 61 which is driven by the chain 62 extending from the drive sprocket 63 which is fixed to the shaft 44. On the other end of the shaft 59 is a fixed gear having engagement with a like gear on the shaft 58 whereby the two rolls 58 and 59 have a uniform coaction.

The casting 6a which supports the rolls 58 and 59 is supported on the supporting bracket 65 and contains a passage G L of gradually decreasing diameter into which the arcuately bent strip of paper is fed from the rolls 58 and 59. The casting 64: is provided at its outer end with an enlarged perpendicularly extending integral block 64 which is provided with vertical grooves 64 forming guides for the shear blocks 66 to which are secured the shear blades 67. The function of the shear blades 67 is to sever the paper strip at even lengths upon its passage from the forming passage 6%.

The shear blocks 66 reciprocate in opposite directions and are actuated from the main drive shaft 3 by means of a cam drive which is illustrated in Figs. 13 and 14- and which employed as a standard for the other units hereinafter specified. This cam drive also shown in Fig. ltogether with the interconnecting links and cranks for actualing the shear blocks. Referring now in Figs. 41-, 9, 13, and ll, the link 65: is pirotally connected at its upper end to a crank arm 69 which is mounted in the bracket To. at its lower end the link is provided with a slot 68 to permit the passage of the main drive shaft 30 therethrough. This slotted end is mounted adjacent and between the cam T1 and collar 72. A roller is liiOl'li'l'ted on the link 68 for engagement by the cam T1 whereby the link 68 is reeiproeated to move the end 69 of the crank 69 upwardh from the position shown in Fig. at. A spring 74 is provided to act against the cam movement and to thereby always maintain the cam 71 in engagement with the roller '72").

Referring now particularly to Figs. and 9, the upper shear block 66 is PlVOtZlllj." mounted to a crank arm 75 (similar to arm 69) which is pivoted at (5 to the block til" and the depending portion of the arm T5 is connected with a link 76 to the end 69" of the arm 69. The lower shear block (36 is provided with a pin T? which extends into a slotted opening 7'? within the link 76. it is now obvious that in the upward movement of the links 68 and 76, the lower shear block 66 will move upwardly while the upper shear block will move simultaneousl downwardly due to its mounting on the crank arm 75, and in such movement. the conically formed strip of extending paper will be sheared by the blades 67 and sheared conical wrapper indicated by '78 which extended into the retaining member 79 will now be ready to be moved in the rotary c isl: carrier 80 into loading or changing position.

The rotary disk carrier 80 is provided with six wrapper retaining members 7 9 which resemble a bolt, having av head Til and a nut 79 the interior of which is here provided with a conical bore 79.

The intermittent operation or rotation of the disk carrier 80 will later be more fully described.

Preliminary to loading or charging of the wrappers the carrier 80 moves one sixth of a rotation in a clockwise direction shown by arrow in Fig. l, and thus brings the wrapper 78 from the shearing position into alignment with the rotary shape-forming plunger 81. (Shown enlarged in Fig. 8.) This plunger revolves at a constant relative high speed, and between the next movement of the carrier 80 moves quickly into and out of the aligned wrapper 78, thus definitely setting the conical formation of the wrapper. The plunger 81 is slidably mounted in the bearing macaw 82 and is slidably keyed to a revolving end carrying the pulley 83 which pulley is constantly driven by a belt, 841 passing over a pair of idler sheaves 85 from the drive pulley 86 which is fixed to the main drive shaft 30. As the plunger 81 is slidable longitudinally within its keyed connection 87 it can readily be quickly moved or reciprocated by a cam 71 on shaft operating the link 68 (see Fig. 3, similar in construction to link 68 shown in Figs. 13 and 141 and described above) which link 68 operates the arm 117 pivoted at 118 to reciprocate the connection 87 through the link connection 119 (see Fig 1).

The next one-sixth rotation of the carrier 80 will bring the wrapper 7 8 into alignment with the loading chamber shown also in Fig. 8, but before describing this structure I will proceed with the specifications of my improved feeder.

The feeder is illustrated in Figs. 1, 2 4, 5, 6, and 7 and comprises a cylindrical receiving chamber 88, open at the top to receive a quantity of the medicated cones. A right angular discharge opening 88 is provided in the bottom 88 and portion of the side, as shown in Figs. 5 and 6. Laid on the bottom 88 and within the chamber is an intermittently rotating disk 89 which is fixed to a central shaft 90. The periphery of the disk 89 is provided with equally spaced openings 89 and the portion between the openings is slightly beveled towards the edge of the disk. The length of these openings 89 being slightly greater than the length of the cones. The shaft 90 extends through the bottom 88 and carries a fixed bevel gear .91 which meshes with the bevel gear 92 which is fixed to the shaft 93 the other end of which carries the ratchet 9 1, which ratchetis intermittently operated by the spring-pressed pawl 95 pivoted on the lever 96 which is also pivotally mounted on shaft 93. The shaft 93 is carried in the bracket bearing 93*. The lever 96 is oscillated by the connected rod 97 which is fixed to the crank disk 98. The crank disk 98 is fixed to the shaft 99. The shaft 99 is carried on the bracket bearings 100 and is driven by a )ulley 103 fixed on the main drive shaft 30.

As the disk 89 rotates clockwise in Fig. 6, the quantity of cones will be moved upwardly in the inclined hopper toward the opening 88 and to thin or reduce this quantity to a layer whereby the openings 89 will each receive a single cone for conveyance to the discliarge opening 88*, I provide a pair of rotating brushes 1041 mounted on the arm 105 which is keyed to the shaft 106. On the upper end of shaft 106 a gear 107 fixed thereto meshes with gear 108 which is fixed to the shaft 90 for the purpose of receiving intermittent motion. "IlZ'Wll-lbe noted'that the chamber 88 is inclinedly and pivotally mounted at 88 to the supporting bracket 109. i

For the purpose of controlling the discharge of only whole or perfect cones to the feeder tube 110 I provide an intermittently rotating drum 111 which comprises a pair. of flanges 111 between which is a cylindrical hollow sleeve 111 having four equally spaced depressions 111 to receive the unit cones. The depressions 111 extend longitudinally of the cylindrical sleeve 111 and are provided with relatively large openings or slots 111 extending longitudinally for, the greater part of the depression. It is now apparent that if a part of a cone is passed to the drum 111, such part if shorter, than the length of the opening 111 will fall through the sleeve lll finto the imperfect cone tube 112 for discharge into any suitable separate container which may be placed alongside of. the machine.

As a further means of.avoiding the passage of any imperfect cone or part of one. 1 provide the feeder tube 110 with a wire frame body 110 and just opposite the tube 113, which also discharges into the same container for the tube 112, I crimp or deform one of the lower wires as at 110 which will afford a means of by-passing the small broken parts to the tube 113. The drum 111 is supported on a shaft 111 extending integrally with and in opposite directions from both flanges 111 into bearings 1 1-4, and at one end of this shaft I secure drive disk 115 having a. plurality of equally spaced pins 116 which extend outwardly into the path of the pivoted end 96 of, the lever 96. The end 96 is provided withan integral extension or lug 96. which normally engages the underside of the lever 96 to afford an upward movement of the end 96' rigidly with arm 96. Referring now to Fig. 4-, if. the disk 98 is moved anticlockwise, as the lever 96 will be oscillated to move the pivoted end. 96 upwardly and rigidly with arm 96 during its engagement of one of the pins 116 to rotate the drum 111 anticlockwise. In the reverse oscillation of the lever 96, the end 96 will be moved downwardly, but because of its pivotal support on arm 93. will be swung past the pin 11.6 which it had previously raised and will after passing same drop by its weight into normal operative position under the next pin 116 into a position to move such pin upwardly on the next upward oscillation of the end 96 It is necessary that each one be dropped into the wire tube with the larger or heavier end of the cone forward and for this pur- 1 pose I provide depressions 111 at end of the depressions 111 which depressions'lllare arcuate cavities, smaller in diameter than the base of the cone but greater than its apex Thus the apex of each cone. will 1 lodge in same and in the discharge of the cones from the drum 111, the base of the cone will roll out first with the apex lying in the cavity 111 and will be retarded in its rolling discharge. This arrangement insures the. base of the cone rolling or discharging first.

The lower end of the feeder tube 110 is provided with a feeder chamber 120 comprising a cylinder chamber open at the front or discharge side at 120. The chamber 120 is fixed to the bracket with a bolt 121, (see Fig. 8). The bearing 122 is also cast integral with the bracket 65 and carries the slidable feeder plunger which is rigidly fixed to the operating sleeve having an integral flange 12%. The feeder plunger end is slightly beveled at its upper side 123 and carries a rubber tip 12 1.

The cones slide down the tube 110 to the stop pin 125 which normally extends into the upper part of the feeder chamber to support the lowermost cone. The pin 125 is lined to a depending member 126 which is rigid on the pin 127. The pin 127 is mounted for reciprocation in the upright supports 12S rigidly mounted on hearing 122. A coiled spring 129 extending between the collar 127 and upright 128 retains the pin 127 in a position with the stop pin extending into the interior of the feeder chamher 120 to support the cones in the tube. The outer end of pin 127 is provided with a forked end 127 having a slotted opening 127 for the pin 130 which is carried in the upper end of the lever 131 pivotably mounted to the upright 128 at 131 hen the feeder plunger 123 moves into loading position as shown by the full lines in Fig. 8, the cone lying in the arcuate extension 122 is pushed into the aligned wrapper 78 which was brought into such position by the one-sixth rotation of the carrier 80, from its preceding aligned position with the form setting rotary plunger 81 and during the loading movement of the feeder plunger 123, the flange 12st engages the notched end of the lever 131 thus moving the pin 127 outwardly against the pressure of the coil spring 129 to quickly withdraw the stop 125 to allow another cone to pass down into the loading chamber. The pivotal mounting of the lever 131 is so arranged that the release of cone from the tube 110 is done very quickly and before the next cone would also pass down the pin 125, due to the action of the spring 129, is quickly passed into a stop position to retain it, thus only one cone is fed at each reciprocation of the pin 127. The cone discharged into the feeder chamber 120 is seated in a slightly inclined position with its base on the inclined face 123 of the feeder plunger 123 and in the reverse or outward movement of the plunger 123 is laid into the extension 122 into a proper loading position with its apex forward ready to enter the conical Wrapper on the next loading movement of the plunger 123.

To lay the cone down on its side in the extension 122 I provide a rubber lip which is fixed to the extension 122 by screws 133 and in such position that the cone resting in an inclined position on the bevel 123 will be easily tilted off its support.

The operation of the plunger 123 and its coasting mechanism is accomplished through a cam 71 on shaft 55, operating the link 68 (similar to 6S) arm 13 1 which is pivoted at 135, and the short link 13G connecting the upper end of arm 13-1: with the sleeve 124.

After the cone is loaded into the wrapper, the carrier 80 makes another one-sixth revolution and the loaded wrapper is brought into aligned position with the end folding and sealing reciprocating plunger 137 which is supported in the bearing 13.

The outer end of the plunger 137 carries a rigidly mounted sleeve 139 which is recipro rated by the standard mechanism comprising cam 71, mounted on shaft 1-11-0 which is driven by a pair of bevel gears 141 from the main drive shaft 30 si'qiported by brackets The cam 71 drives the link (i8 (similar to (38) which link is connected to the pivoted arm 1 12. the upper end of which is connected by the link 1 13 to the sleeve 139.

The inner end of the plunger 137 carries a nut 137 on the end of the intcg 'al section 137 which is of small diameter and a slidably mounted cylindrical head 1 14 which is formei'l vith a central conical depression 1 hr adapted to lit over the head of the retaining member 79. It may here be stated that the mouth of the depression 14A: wider than the open end of the projecting wrapper, so that the wrapper is gathered together as the mouth of the depression lll engages same. Normally the spring 14-5 retains the head 14-iproiecting beyond the nut 137 so that as the plunger 137 is moved forward the conical dc iiression will be the first to engage the open end of the wrapper. The tension or resistance of the spring 145 is suthcient to fold the wrapper into the de pression 1 1 i while upon continued movement of the plunger the 1 end 137 will engage the folded end of the wrapper to permanently fix or seal same.

The next one-sixth rotation of the carrier 80 will bring the loaded wrapper with one end sealed into alignment with the apex sealing mechanism illustrated in Fig. 10. The apes sealing mechanism consists of an oscillating spindle 1 1-6 supported in a bearing 147 and having a ratchet wheel 148 at its outer end. The ratchet 143 is operated by a rack 149 having pivotal connected with the rotary disk 150 mounted on one end of the shaft 151, the other of which is driven by a pair of gears 152 from the main shaft 30. On the inner end of the spindle 146, I mount a pair of coacting fingers 153 which are pivotally mounted at 153* to the parallel side supporting bars 15a which are rigid with the spindle. The ends of the fingers are disposed toward each other as at 153? to provide means for gripping the projecting apex of the wrapper. To maintain the tin ger in separated or open position as shown dotted, I provide leaf springs 155 riveted at one end to the spindle and having their free ends exerting pressure against the fun gers. A clutch 156 loosely mounted on the spindle and having a conical end 156 is arranged to slidably engage the beveled ends 153 to bring the finger ends 158 together against the pressure of the leaf springs 155. The operation of the clutch 156 is accomplished by the lever 157 which is pivoted at 158 and the lower end of which is reciprocated by the standard cam mechanism comprising cam 71 actuating the link 68. It is now apparent that as the rack 1 19 oscillates the spindle 1 16, the fingers 153 are simultaneously brought into engagement with the projecting apex of the wrapper whereby the wrappers apex is sealed by a twist.

The loaded wrapper now being sealed at both ends is ready to be discharged from its retaining member 79 within the carrier 80.

The discharging mechanism is also illus trated in enlarged detail in Fig. 10 and com prises a plunger 159 having a discharge end 159 and a supporting bearing 160. A sleeve 161 rigidly fixed to the plunger 159 is connected by the link 162 with the operating lever 163 which is pivotally mounted at 164 and actuated by my standard cam mechanism comprising cam 71 and link 68.

The final. operation to be described is the actuation of the carrier 80 in its intermittent motion which as above stated was one-sixth of its complete rotation. The mechanism comprises a ratchet wheel 165 which is keyed to the shaft 166 upon which the carrier 80 is fixedly mounted. Adjacent this ratchet wheel 165, and loosely mounted on the shaft 166, I provide an oscillating arm 167 to which I pivot a spring-pressed pawl 168, which pawl constantly engages the ratchet wheel 165 and upon each oscillation of the arm 167 move the ratchet wheel one-sixth of its complete rotation, thus imparting an intermittent motion to the shaft 166 and carrier 80. The oscillation of the arm 167 is attained by the connecting rod 169 which connects its end with the crank disk 170 mounted rigidly to the end of the main drive shaft 30.

Referring to Figs. 11 and 12, the integral vertically extending block 6& of the rolls supporting casting 64: has attached thereto by screws 170 a metal plate 170 which extends outwardly toward the carrier 80 and which has the outer end thereof bent at a right angle and provided with saw-like teeth 170 which are adapted to engage and extract the wrapper 78 which for some reason should not be filled during the operation of the machine; in such instance, for example, as when the feeder should miss depositing a charge.

1' claim:

1. In a machine for automatically wrapping conieald'ike units, a loader comprising a reciprocating plunger feeder, and means for controlling the position of the conical unit during loading by said feeder whereby the unit will be moved with its apex forward.

2. In a machine for automaticallv wrapping conical-like units, a loader comprising a reciprocating plunger feeder, means for successively feeding the units to said feeder, and means for controlling the position of the conical unit during loading by said feeder whereby the unit will be moved with its apex forward.

3. In a machine for wrapping conicallike units, means for retaining a wrapper, said wrapper being conically formed to reccive a conical-like unit, means for loading said wrapper, means for gathering and folding the base of said conical wrapper, and means for twisting the apex of said wrapper to close same.

4:. In a machine for wrapping conicallike units, means for retaining a wrapper, said wrapper being conically formed to receive a conical-like unit, means for loading said wrapper comprising a reciprocating member having a cavity with an inwardly converging interior adapted to receive the open base of said wrapper and gradually gather same together and a ram operating at the base of said cavity to fold the gathered end, and means for twisting the apex of the wrapper to close same.

5.111 an automatic wrapping machine, means for successively feeding a plurality of units from a common receiving hopper, mechanism for feeding, shearing, and shap ing a strip of paper to form hollow wrappers open at both ends, a rotary carrier adapted to receive said wrappers, and mechanisms coacting with said carrier for successively loading, closing the ends of said wrappers. and discharging the wrapped units, said loading mechanism including a plunger adapted to receive a unit in slightly tilted vertical position and on its backward stroke cause a displacement of said unit into a lateral position and on its return forward stroke cause said unit to move into said wrapper.

6. In an automatic wrapping machine, the combination of means for successively feed ing separate units from a common hopper; mechanism for intermittently feeding, shaping and shearing a strip of paper to form tubular wrappers open at both ends; an intermittently revolving rotary carrier adapted to receive said wrappers with the open ends thereof projecting on each side of said carrier; means comprising a reciprocating plunger adapted to receive said units and successively load same into said wrappers; means for closing one end of the loaded wrappers comprising a reciprocating plunger having a head slidably mounted thereon, said head having a depressed mouth therein adapted to receive and gather together the open end of said Wrapper and being arranged to permit the movement of the plunger therethrough to close the open end of said wrapper by pressure against the gathered end; means for successively twisting the other open end of said wrappers con'iprising a pair of pivoted fingers mounted on a revolving shaft, said fingers having their rear ends beveled, and an intermittentiv reciprocating conical. member mounted on said shaft and adapted to engage the beveled ends of said fingers to grip the open end of said wrapper therebetween, whereby said wrapper end will be twisted to close same;

and an intermittently reciprocating plunger adapted to eject the wrapped unit from said rotatory carrier.

7. In an automatic wrapping machine, the combination of means for successively feeding separate units from a common hopper; mechanism for intermittently feeding, shaping and shearing a strip of paper to form tubular wrappers open at both ends; an intermittently IQVOlX iDg rotary carrier adapted to receive said wrappers with the open ends thereof projecting on each side of said carrier; means comprising a reciprocating plunger adapted to receive said units and successively load same into said wrappers; means for closing one end of the loaded wrappers comprising a reciprocating plunger having a head slidably mounted thereon, said head 1 avin a depressed mouth therein adapted to receive and gather together the open end oi? said wrapper and being arranged to permit the movement of the plunger therethrough to close the open end of said wrapper by pressure against the gathered end; means for successively twisting the other open end of said wrappers to (lose same; and an intermittently reciprocating plunger adapted to eject the wrapped unit from said rotatory carrier.

In witness whereof I atfix my signature.

HERMAN SCHLOTTHAUER.

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